Mon Mar 31 17:30:10 2014

Asterisk developer's documentation


pbx.h File Reference

Core PBX routines and definitions. More...

#include "asterisk/sched.h"
#include "asterisk/channel.h"
#include "asterisk/linkedlists.h"
#include "asterisk/devicestate.h"

Go to the source code of this file.

Data Structures

struct  ast_custom_function
 Data structure associated with a custom dialplan function. More...
struct  ast_pbx
struct  ast_switch
struct  ast_timing

Defines

#define AST_MAX_APP   32
#define AST_PBX_KEEP   0
#define AST_PBX_KEEPALIVE   10
 Special return values from applications to the PBX {.
#define AST_PBX_REPLACE   1
#define PRIORITY_HINT   -1

Typedefs

typedef int(* ast_state_cb_type )(char *context, char *id, enum ast_extension_states state, void *data)
 Typedef for devicestate and hint callbacks.
typedef int( ast_switch_f )(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data)
 All switch functions have the same interface, so define a type for them.

Enumerations

enum  ast_extension_states {
  AST_EXTENSION_REMOVED = -2, AST_EXTENSION_DEACTIVATED = -1, AST_EXTENSION_NOT_INUSE = 0, AST_EXTENSION_INUSE = 1 << 0,
  AST_EXTENSION_BUSY = 1 << 1, AST_EXTENSION_UNAVAILABLE = 1 << 2, AST_EXTENSION_RINGING = 1 << 3, AST_EXTENSION_ONHOLD = 1 << 4
}
 

Extension states.

More...
enum  ast_pbx_result { AST_PBX_SUCCESS = 0, AST_PBX_FAILED = -1, AST_PBX_CALL_LIMIT = -2 }

Functions

int ast_active_calls (void)
 Retrieve the number of active calls.
int ast_add_extension (const char *context, int replace, const char *extension, int priority, const char *label, const char *callerid, const char *application, void *data, void(*datad)(void *), const char *registrar)
 Add and extension to an extension context.
int ast_add_extension2 (struct ast_context *con, int replace, const char *extension, int priority, const char *label, const char *callerid, const char *application, void *data, void(*datad)(void *), const char *registrar)
 Add an extension to an extension context, this time with an ast_context *.
int ast_async_goto (struct ast_channel *chan, const char *context, const char *exten, int priority)
int ast_async_goto_by_name (const char *chan, const char *context, const char *exten, int priority)
int ast_async_goto_if_exists (struct ast_channel *chan, const char *context, const char *exten, int priority)
int ast_build_timing (struct ast_timing *i, const char *info)
int ast_canmatch_extension (struct ast_channel *c, const char *context, const char *exten, int priority, const char *callerid)
 Looks for a valid matching extension.
int ast_check_timing (const struct ast_timing *i)
int ast_context_add_ignorepat (const char *context, const char *ignorepat, const char *registrar)
 Add an ignorepat.
int ast_context_add_ignorepat2 (struct ast_context *con, const char *ignorepat, const char *registrar)
int ast_context_add_include (const char *context, const char *include, const char *registrar)
 Add a context include.
int ast_context_add_include2 (struct ast_context *con, const char *include, const char *registrar)
 Add a context include.
int ast_context_add_switch (const char *context, const char *sw, const char *data, int eval, const char *registrar)
 Add a switch.
int ast_context_add_switch2 (struct ast_context *con, const char *sw, const char *data, int eval, const char *registrar)
 Adds a switch (first param is a ast_context).
struct ast_contextast_context_create (struct ast_context **extcontexts, const char *name, const char *registrar)
 Register a new context.
void ast_context_destroy (struct ast_context *con, const char *registrar)
 Destroy a context (matches the specified context (or ANY context if NULL).
struct ast_contextast_context_find (const char *name)
 Find a context.
struct ast_contextast_context_find_or_create (struct ast_context **extcontexts, const char *name, const char *registrar)
int ast_context_lockmacro (const char *macrocontext)
 locks the macrolock in the given given context
int ast_context_remove_extension (const char *context, const char *extension, int priority, const char *registrar)
 Simply remove extension from context.
int ast_context_remove_extension2 (struct ast_context *con, const char *extension, int priority, const char *registrar)
 This functionc locks given context, search for the right extension and fires out all peer in this extensions with given priority. If priority is set to 0, all peers are removed. After that, unlock context and return.
int ast_context_remove_extension_callerid (const char *context, const char *extension, int priority, const char *callerid, int matchcid, const char *registrar)
int ast_context_remove_extension_callerid2 (struct ast_context *con, const char *extension, int priority, const char *callerid, int matchcid, const char *registrar)
int ast_context_remove_ignorepat (const char *context, const char *ignorepat, const char *registrar)
int ast_context_remove_ignorepat2 (struct ast_context *con, const char *ignorepat, const char *registrar)
int ast_context_remove_include (const char *context, const char *include, const char *registrar)
 Remove a context include.
int ast_context_remove_include2 (struct ast_context *con, const char *include, const char *registrar)
 Removes an include by an ast_context structure.
int ast_context_remove_switch (const char *context, const char *sw, const char *data, const char *registrar)
 Remove a switch.
int ast_context_remove_switch2 (struct ast_context *con, const char *sw, const char *data, const char *registrar)
 This function locks given context, removes switch, unlock context and return.
int ast_context_unlockmacro (const char *macrocontext)
 Unlocks the macrolock in the given context.
int ast_context_verify_includes (struct ast_context *con)
 Verifies includes in an ast_contect structure.
struct ast_custom_functionast_custom_function_find (const char *name)
int ast_custom_function_register (struct ast_custom_function *acf)
 Reigster a custom function.
int ast_custom_function_unregister (struct ast_custom_function *acf)
 Unregister a custom function.
enum ast_extension_states ast_devstate_to_extenstate (enum ast_device_state devstate)
 Map devstate to an extension state.
int ast_exists_extension (struct ast_channel *c, const char *context, const char *exten, int priority, const char *callerid)
 Determine whether an extension exists.
int ast_explicit_goto (struct ast_channel *chan, const char *context, const char *exten, int priority)
int ast_extension_close (const char *pattern, const char *data, int needmore)
int ast_extension_match (const char *pattern, const char *extension)
 Determine if a given extension matches a given pattern (in NXX format).
int ast_extension_patmatch (const char *pattern, const char *data)
int ast_extension_state (struct ast_channel *c, const char *context, const char *exten)
 Uses hint and devicestate callback to get the state of an extension.
const char * ast_extension_state2str (int extension_state)
 Return string representation of the state of an extension.
int ast_extension_state_add (const char *context, const char *exten, ast_state_cb_type callback, void *data)
 Registers a state change callback.
int ast_extension_state_del (int id, ast_state_cb_type callback)
 Deletes a registered state change callback by ID.
int ast_findlabel_extension (struct ast_channel *c, const char *context, const char *exten, const char *label, const char *callerid)
 Find the priority of an extension that has the specified label.
int ast_findlabel_extension2 (struct ast_channel *c, struct ast_context *con, const char *exten, const char *label, const char *callerid)
 Find the priority of an extension that has the specified label.
int ast_func_read (struct ast_channel *chan, char *function, char *workspace, size_t len)
 executes a read operation on a function
int ast_func_write (struct ast_channel *chan, char *function, const char *value)
 executes a write operation on a function
const char * ast_get_context_name (struct ast_context *con)
const char * ast_get_context_registrar (struct ast_context *c)
const char * ast_get_extension_app (struct ast_exten *e)
void * ast_get_extension_app_data (struct ast_exten *e)
const char * ast_get_extension_cidmatch (struct ast_exten *e)
struct ast_contextast_get_extension_context (struct ast_exten *exten)
const char * ast_get_extension_label (struct ast_exten *e)
int ast_get_extension_matchcid (struct ast_exten *e)
const char * ast_get_extension_name (struct ast_exten *exten)
int ast_get_extension_priority (struct ast_exten *exten)
const char * ast_get_extension_registrar (struct ast_exten *e)
int ast_get_hint (char *hint, int maxlen, char *name, int maxnamelen, struct ast_channel *c, const char *context, const char *exten)
 If an extension exists, return non-zero.
const char * ast_get_ignorepat_name (struct ast_ignorepat *ip)
const char * ast_get_ignorepat_registrar (struct ast_ignorepat *ip)
const char * ast_get_include_name (struct ast_include *include)
const char * ast_get_include_registrar (struct ast_include *i)
const char * ast_get_switch_data (struct ast_sw *sw)
const char * ast_get_switch_name (struct ast_sw *sw)
const char * ast_get_switch_registrar (struct ast_sw *sw)
int ast_goto_if_exists (struct ast_channel *chan, const char *context, const char *exten, int priority)
void ast_hint_state_changed (const char *device)
int ast_ignore_pattern (const char *context, const char *pattern)
 Checks to see if a number should be ignored.
int ast_lock_context (struct ast_context *con)
 Locks a given context.
int ast_lock_contexts (void)
 Locks the context list.
int ast_matchmore_extension (struct ast_channel *c, const char *context, const char *exten, int priority, const char *callerid)
 Looks to see if adding anything to this extension might match something. (exists ^ canmatch).
void ast_merge_contexts_and_delete (struct ast_context **extcontexts, const char *registrar)
 Merge the temporary contexts into a global contexts list and delete from the global list the ones that are being added.
int ast_parseable_goto (struct ast_channel *chan, const char *goto_string)
int ast_pbx_outgoing_app (const char *type, int format, void *data, int timeout, const char *app, const char *appdata, int *reason, int sync, const char *cid_num, const char *cid_name, struct ast_variable *vars, const char *account, struct ast_channel **locked_channel)
int ast_pbx_outgoing_exten (const char *type, int format, void *data, int timeout, const char *context, const char *exten, int priority, int *reason, int sync, const char *cid_num, const char *cid_name, struct ast_variable *vars, const char *account, struct ast_channel **locked_channel)
enum ast_pbx_result ast_pbx_run (struct ast_channel *c)
 Execute the PBX in the current thread.
enum ast_pbx_result ast_pbx_start (struct ast_channel *c)
 Create a new thread and start the PBX.
int ast_processed_calls (void)
 Retrieve the total number of calls processed through the PBX since last restart.
int ast_rdlock_contexts (void)
int ast_register_application (const char *app, int(*execute)(struct ast_channel *, void *), const char *synopsis, const char *description)
 Register an application.
int ast_register_switch (struct ast_switch *sw)
 Register an alternative dialplan switch.
int ast_spawn_extension (struct ast_channel *c, const char *context, const char *exten, int priority, const char *callerid)
 Launch a new extension (i.e. new stack).
int ast_unlock_context (struct ast_context *con)
int ast_unlock_contexts (void)
 Unlocks contexts.
int ast_unregister_application (const char *app)
 Unregister an application.
void ast_unregister_switch (struct ast_switch *sw)
 Unregister an alternative switch.
struct ast_extenast_walk_context_extensions (struct ast_context *con, struct ast_exten *priority)
struct ast_ignorepatast_walk_context_ignorepats (struct ast_context *con, struct ast_ignorepat *ip)
struct ast_includeast_walk_context_includes (struct ast_context *con, struct ast_include *inc)
struct ast_swast_walk_context_switches (struct ast_context *con, struct ast_sw *sw)
struct ast_contextast_walk_contexts (struct ast_context *con)
struct ast_extenast_walk_extension_priorities (struct ast_exten *exten, struct ast_exten *priority)
int ast_wrlock_contexts (void)
void pbx_builtin_clear_globals (void)
const char * pbx_builtin_getvar_helper (struct ast_channel *chan, const char *name)
void pbx_builtin_pushvar_helper (struct ast_channel *chan, const char *name, const char *value)
int pbx_builtin_serialize_variables (struct ast_channel *chan, char *buf, size_t size)
int pbx_builtin_setvar (struct ast_channel *chan, void *data)
void pbx_builtin_setvar_helper (struct ast_channel *chan, const char *name, const char *value)
int pbx_checkcondition (const char *condition)
 Evaluate a condition.
int pbx_exec (struct ast_channel *c, struct ast_app *app, void *data)
 Execute an application.
struct ast_apppbx_findapp (const char *app)
 Look up an application.
void pbx_retrieve_variable (struct ast_channel *c, const char *var, char **ret, char *workspace, int workspacelen, struct varshead *headp)
 pbx_retrieve_variable: Support for Asterisk built-in variables ---
int pbx_set_autofallthrough (int newval)
void pbx_substitute_variables_helper (struct ast_channel *c, const char *cp1, char *cp2, int count)
void pbx_substitute_variables_varshead (struct varshead *headp, const char *cp1, char *cp2, int count)

Detailed Description

Core PBX routines and definitions.

Definition in file pbx.h.


Define Documentation

#define AST_MAX_APP   32
#define AST_PBX_KEEP   0

Definition at line 37 of file pbx.h.

#define AST_PBX_KEEPALIVE   10

Special return values from applications to the PBX {.

Destroy the thread, but don't hang up the channel

Definition at line 41 of file pbx.h.

Referenced by __ast_pbx_run(), _macro_exec(), agi_handle_command(), rpt_exec(), and run_agi().

#define AST_PBX_REPLACE   1

Definition at line 38 of file pbx.h.

#define PRIORITY_HINT   -1

Typedef Documentation

typedef int(* ast_state_cb_type)(char *context, char *id, enum ast_extension_states state, void *data)

Typedef for devicestate and hint callbacks.

Definition at line 66 of file pbx.h.

typedef int( ast_switch_f)(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data)

All switch functions have the same interface, so define a type for them.

Data structure associated with an Asterisk switch

Definition at line 80 of file pbx.h.


Enumeration Type Documentation

Extension states.

Enumerator:
AST_EXTENSION_REMOVED 

Extension removed

AST_EXTENSION_DEACTIVATED 

Extension hint removed

AST_EXTENSION_NOT_INUSE 

No device INUSE or BUSY

AST_EXTENSION_INUSE 

One or more devices INUSE

AST_EXTENSION_BUSY 

All devices BUSY

AST_EXTENSION_UNAVAILABLE 

All devices UNAVAILABLE/UNREGISTERED

AST_EXTENSION_RINGING 

All devices RINGING

AST_EXTENSION_ONHOLD 

All devices ONHOLD

Definition at line 47 of file pbx.h.

00047                           {
00048    AST_EXTENSION_REMOVED = -2,   /*!< Extension removed */
00049    AST_EXTENSION_DEACTIVATED = -1,  /*!< Extension hint removed */
00050    AST_EXTENSION_NOT_INUSE = 0,  /*!< No device INUSE or BUSY  */
00051    AST_EXTENSION_INUSE = 1 << 0, /*!< One or more devices INUSE */
00052    AST_EXTENSION_BUSY = 1 << 1,  /*!< All devices BUSY */
00053    AST_EXTENSION_UNAVAILABLE = 1 << 2, /*!< All devices UNAVAILABLE/UNREGISTERED */
00054    AST_EXTENSION_RINGING = 1 << 3,  /*!< All devices RINGING */
00055    AST_EXTENSION_ONHOLD = 1 << 4,   /*!< All devices ONHOLD */
00056 };

Enumerator:
AST_PBX_SUCCESS 
AST_PBX_FAILED 
AST_PBX_CALL_LIMIT 

Definition at line 214 of file pbx.h.

00214                     {
00215    AST_PBX_SUCCESS = 0,
00216    AST_PBX_FAILED = -1,
00217    AST_PBX_CALL_LIMIT = -2,
00218 };


Function Documentation

int ast_active_calls ( void   ) 

Retrieve the number of active calls.

Definition at line 2764 of file pbx.c.

Referenced by handle_chanlist(), and handle_chanlist_deprecated().

02765 {
02766    return countcalls;
02767 }

int ast_add_extension ( const char *  context,
int  replace,
const char *  extension,
int  priority,
const char *  label,
const char *  callerid,
const char *  application,
void *  data,
void(*)(void *)  datad,
const char *  registrar 
)

Add and extension to an extension context.

Parameters:
context context to add the extension to
replace 
extension extension to add
priority priority level of extension addition
label extension label
callerid pattern to match CallerID, or NULL to match any CallerID
application application to run on the extension with that priority level
data data to pass to the application
datad 
registrar who registered the extension
Return values:
0 success
-1 failure

Definition at line 4679 of file pbx.c.

References ast_add_extension2(), ast_unlock_contexts(), and find_context_locked().

Referenced by handle_context_add_extension(), handle_context_add_extension_deprecated(), park_add_hints(), and register_peer_exten().

04682 {
04683    int ret = -1;
04684    struct ast_context *c = find_context_locked(context);
04685 
04686    if (c) {
04687       ret = ast_add_extension2(c, replace, extension, priority, label, callerid,
04688          application, data, datad, registrar);
04689       ast_unlock_contexts();
04690    }
04691    return ret;
04692 }

int ast_add_extension2 ( struct ast_context con,
int  replace,
const char *  extension,
int  priority,
const char *  label,
const char *  callerid,
const char *  application,
void *  data,
void(*)(void *)  datad,
const char *  registrar 
)

Add an extension to an extension context, this time with an ast_context *.

Note:
For details about the arguments, check ast_add_extension()

Add an extension to an extension context, this time with an ast_context *.

We sort extensions in order of matching preference, so that we can stop the search as soon as we find a suitable match. This ordering also takes care of wildcards such as '.' (meaning "one or more of any character") and '!' (which is 'earlymatch', meaning "zero or more of any character" but also impacts the return value from CANMATCH and EARLYMATCH.

The extension match rules defined in the devmeeting 2006.05.05 are quite simple: WE SELECT THE LONGEST MATCH. In detail, "longest" means the number of matched characters in the extension. In case of ties (e.g. _XXX and 333) in the length of a pattern, we give priority to entries with the smallest cardinality (e.g, [5-9] comes before [2-8] before the former has only 5 elements, while the latter has 7, etc. In case of same cardinality, the first element in the range counts. If we still have a tie, any final '!' will make this as a possibly less specific pattern.

EBUSY - can't lock EEXIST - extension with the same priority exist and no replace is set

Definition at line 4894 of file pbx.c.

References add_pri(), ast_exten::app, ast_add_hint(), ast_calloc, AST_LIST_FIRST, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), ast_exten::cidmatch, ast_exten::data, ast_exten::datad, el, errno, ext_cmp(), ext_strncpy(), ast_exten::exten, ast_exten::label, ast_context::lock, LOG_DEBUG, ast_exten::matchcid, ast_exten::next, option_debug, option_verbose, ast_exten::parent, pbx_substitute_variables_varshead(), ast_exten::priority, PRIORITY_HINT, ast_exten::registrar, ast_context::root, ast_exten::stuff, VAR_BUF_SIZE, and VERBOSE_PREFIX_3.

Referenced by add_extensions(), ast_add_extension(), do_parking_thread(), load_config(), park_call_full(), pbx_load_config(), pbx_load_users(), sla_build_station(), and sla_build_trunk().

04898 {
04899    /*
04900     * Sort extensions (or patterns) according to the rules indicated above.
04901     * These are implemented by the function ext_cmp()).
04902     * All priorities for the same ext/pattern/cid are kept in a list,
04903     * using the 'peer' field  as a link field..
04904     */
04905    struct ast_exten *tmp, *e, *el = NULL;
04906    int res;
04907    int length;
04908    char *p;
04909    char expand_buf[VAR_BUF_SIZE] = { 0, };
04910 
04911    /* if we are adding a hint, and there are global variables, and the hint
04912       contains variable references, then expand them
04913    */
04914    ast_mutex_lock(&globalslock);
04915    if (priority == PRIORITY_HINT && AST_LIST_FIRST(&globals) && strstr(application, "${")) {
04916       pbx_substitute_variables_varshead(&globals, application, expand_buf, sizeof(expand_buf));
04917       application = expand_buf;
04918    }
04919    ast_mutex_unlock(&globalslock);
04920 
04921    length = sizeof(struct ast_exten);
04922    length += strlen(extension) + 1;
04923    length += strlen(application) + 1;
04924    if (label)
04925       length += strlen(label) + 1;
04926    if (callerid)
04927       length += strlen(callerid) + 1;
04928    else
04929       length ++;  /* just the '\0' */
04930 
04931    /* Be optimistic:  Build the extension structure first */
04932    if (!(tmp = ast_calloc(1, length)))
04933       return -1;
04934 
04935    /* use p as dst in assignments, as the fields are const char * */
04936    p = tmp->stuff;
04937    if (label) {
04938       tmp->label = p;
04939       strcpy(p, label);
04940       p += strlen(label) + 1;
04941    }
04942    tmp->exten = p;
04943    p += ext_strncpy(p, extension, strlen(extension) + 1) + 1;
04944    tmp->priority = priority;
04945    tmp->cidmatch = p;   /* but use p for assignments below */
04946    if (callerid) {
04947       p += ext_strncpy(p, callerid, strlen(callerid) + 1) + 1;
04948       tmp->matchcid = 1;
04949    } else {
04950       *p++ = '\0';
04951       tmp->matchcid = 0;
04952    }
04953    tmp->app = p;
04954    strcpy(p, application);
04955    tmp->parent = con;
04956    tmp->data = data;
04957    tmp->datad = datad;
04958    tmp->registrar = registrar;
04959 
04960    ast_mutex_lock(&con->lock);
04961    res = 0; /* some compilers will think it is uninitialized otherwise */
04962    for (e = con->root; e; el = e, e = e->next) {   /* scan the extension list */
04963       res = ext_cmp(e->exten, tmp->exten);
04964       if (res == 0) { /* extension match, now look at cidmatch */
04965          if (!e->matchcid && !tmp->matchcid)
04966             res = 0;
04967          else if (tmp->matchcid && !e->matchcid)
04968             res = 1;
04969          else if (e->matchcid && !tmp->matchcid)
04970             res = -1;
04971          else
04972             res = ext_cmp(e->cidmatch, tmp->cidmatch);
04973       }
04974       if (res >= 0)
04975          break;
04976    }
04977    if (e && res == 0) { /* exact match, insert in the pri chain */
04978       res = add_pri(con, tmp, el, e, replace);
04979       ast_mutex_unlock(&con->lock);
04980       if (res < 0) {
04981          errno = EEXIST;   /* XXX do we care ? */
04982          return 0; /* XXX should we return -1 maybe ? */
04983       }
04984    } else {
04985       /*
04986        * not an exact match, this is the first entry with this pattern,
04987        * so insert in the main list right before 'e' (if any)
04988        */
04989       tmp->next = e;
04990       if (el)
04991          el->next = tmp;
04992       else
04993          con->root = tmp;
04994       ast_mutex_unlock(&con->lock);
04995       if (tmp->priority == PRIORITY_HINT)
04996          ast_add_hint(tmp);
04997    }
04998    if (option_debug) {
04999       if (tmp->matchcid) {
05000          if (option_debug)
05001             ast_log(LOG_DEBUG, "Added extension '%s' priority %d (CID match '%s') to %s\n",
05002                tmp->exten, tmp->priority, tmp->cidmatch, con->name);
05003       } else {
05004          if (option_debug)
05005             ast_log(LOG_DEBUG, "Added extension '%s' priority %d to %s\n",
05006                tmp->exten, tmp->priority, con->name);
05007       }
05008    }
05009    if (option_verbose > 2) {
05010       if (tmp->matchcid) {
05011          ast_verbose( VERBOSE_PREFIX_3 "Added extension '%s' priority %d (CID match '%s')to %s\n",
05012             tmp->exten, tmp->priority, tmp->cidmatch, con->name);
05013       } else {
05014          ast_verbose( VERBOSE_PREFIX_3 "Added extension '%s' priority %d to %s\n",
05015             tmp->exten, tmp->priority, con->name);
05016       }
05017    }
05018    return 0;
05019 }

int ast_async_goto ( struct ast_channel chan,
const char *  context,
const char *  exten,
int  priority 
)

Definition at line 4717 of file pbx.c.

References ast_channel::_state, ast_channel::amaflags, ast_cdr_discard(), ast_cdr_dup(), ast_channel_alloc(), ast_channel_lock, ast_channel_masquerade(), ast_channel_unlock, ast_do_masquerade(), ast_explicit_goto(), ast_hangup(), ast_log(), ast_pbx_start(), AST_SOFTHANGUP_ASYNCGOTO, ast_softhangup_nolock(), ast_channel::cdr, ast_channel::context, ast_channel::exten, LOG_WARNING, ast_channel::pbx, ast_channel::readformat, S_OR, and ast_channel::writeformat.

Referenced by __ast_goto_if_exists(), action_redirect(), ast_async_goto_by_name(), builtin_blindtransfer(), console_transfer(), console_transfer_deprecated(), dahdi_handle_dtmf(), handle_request_bye(), handle_request_refer(), process_ast_dsp(), and socket_process().

04718 {
04719    int res = 0;
04720 
04721    ast_channel_lock(chan);
04722 
04723    if (chan->pbx) { /* This channel is currently in the PBX */
04724       ast_explicit_goto(chan, context, exten, priority);
04725       ast_softhangup_nolock(chan, AST_SOFTHANGUP_ASYNCGOTO);
04726    } else {
04727       /* In order to do it when the channel doesn't really exist within
04728          the PBX, we have to make a new channel, masquerade, and start the PBX
04729          at the new location */
04730       struct ast_channel *tmpchan = ast_channel_alloc(0, chan->_state, 0, 0, chan->accountcode, chan->exten, chan->context, chan->amaflags, "AsyncGoto/%s", chan->name);
04731       if (!tmpchan) {
04732          res = -1;
04733       } else {
04734          if (chan->cdr) {
04735             ast_cdr_discard(tmpchan->cdr);
04736             tmpchan->cdr = ast_cdr_dup(chan->cdr);  /* share the love */
04737          }
04738          /* Make formats okay */
04739          tmpchan->readformat = chan->readformat;
04740          tmpchan->writeformat = chan->writeformat;
04741          /* Setup proper location */
04742          ast_explicit_goto(tmpchan,
04743             S_OR(context, chan->context), S_OR(exten, chan->exten), priority);
04744 
04745          /* Masquerade into temp channel */
04746          if (ast_channel_masquerade(tmpchan, chan)) {
04747             /* Failed to set up the masquerade.  It's probably chan_local
04748              * in the middle of optimizing itself out.  Sad. :( */
04749             ast_hangup(tmpchan);
04750             tmpchan = NULL;
04751             res = -1;
04752          } else {
04753             /* Grab the locks and get going */
04754             ast_channel_lock(tmpchan);
04755             ast_do_masquerade(tmpchan);
04756             ast_channel_unlock(tmpchan);
04757             /* Start the PBX going on our stolen channel */
04758             if (ast_pbx_start(tmpchan)) {
04759                ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmpchan->name);
04760                ast_hangup(tmpchan);
04761                res = -1;
04762             }
04763          }
04764       }
04765    }
04766    ast_channel_unlock(chan);
04767    return res;
04768 }

int ast_async_goto_by_name ( const char *  chan,
const char *  context,
const char *  exten,
int  priority 
)

Definition at line 4770 of file pbx.c.

References ast_async_goto(), ast_channel_unlock, and ast_get_channel_by_name_locked().

04771 {
04772    struct ast_channel *chan;
04773    int res = -1;
04774 
04775    chan = ast_get_channel_by_name_locked(channame);
04776    if (chan) {
04777       res = ast_async_goto(chan, context, exten, priority);
04778       ast_channel_unlock(chan);
04779    }
04780    return res;
04781 }

int ast_async_goto_if_exists ( struct ast_channel chan,
const char *  context,
const char *  exten,
int  priority 
)
Note:
This function will handle locking the channel as needed.

Definition at line 6613 of file pbx.c.

References __ast_goto_if_exists().

Referenced by asyncgoto_exec().

06614 {
06615    return __ast_goto_if_exists(chan, context, exten, priority, 1);
06616 }

int ast_build_timing ( struct ast_timing i,
const char *  info 
)

Definition at line 4357 of file pbx.c.

References ast_copy_string(), ast_strlen_zero(), ast_timing::daymask, days, ast_timing::dowmask, get_range(), get_timerange(), ast_timing::monthmask, months, and strsep().

Referenced by ast_context_add_include2(), iftime(), pbx_builtin_execiftime(), and pbx_builtin_gotoiftime().

04358 {
04359    char info_save[256];
04360    char *info;
04361 
04362    /* Check for empty just in case */
04363    if (ast_strlen_zero(info_in))
04364       return 0;
04365    /* make a copy just in case we were passed a static string */
04366    ast_copy_string(info_save, info_in, sizeof(info_save));
04367    info = info_save;
04368    /* Assume everything except time */
04369    i->monthmask = 0xfff;   /* 12 bits */
04370    i->daymask = 0x7fffffffU; /* 31 bits */
04371    i->dowmask = 0x7f; /* 7 bits */
04372    /* on each call, use strsep() to move info to the next argument */
04373    get_timerange(i, strsep(&info, "|"));
04374    if (info)
04375       i->dowmask = get_range(strsep(&info, "|"), 7, days, "day of week");
04376    if (info)
04377       i->daymask = get_range(strsep(&info, "|"), 31, NULL, "day");
04378    if (info)
04379       i->monthmask = get_range(strsep(&info, "|"), 12, months, "month");
04380    return 1;
04381 }

int ast_canmatch_extension ( struct ast_channel c,
const char *  context,
const char *  exten,
int  priority,
const char *  callerid 
)

Looks for a valid matching extension.

Parameters:
c not really important
context context to serach within
exten extension to check
priority priority of extension path
callerid callerid of extension being searched for
Note:
It is possible for autoservice to be started and stopped on c during this function call, it is important that c is not locked prior to calling this. Otherwise a deadlock may occur
Returns:
If "exten" *could be* a valid extension in this context with or without some more digits, return non-zero. Basically, when this returns 0, no matter what you add to exten, it's not going to be a valid extension anymore

Definition at line 2381 of file pbx.c.

References E_CANMATCH, and pbx_extension_helper().

Referenced by background_detect_exec(), cb_events(), do_immediate_setup(), dp_lookup(), dundi_lookup_local(), get_also_info(), get_destination(), handle_link_data(), handle_link_phone_dtmf(), local_dtmf_helper(), loopback_canmatch(), mgcp_ss(), pbx_builtin_background(), phone_check_exception(), pri_dchannel(), skinny_ss(), ss_thread(), and valid_exit().

02382 {
02383    return pbx_extension_helper(c, NULL, context, exten, priority, NULL, callerid, E_CANMATCH);
02384 }

int ast_check_timing ( const struct ast_timing i  ) 

Definition at line 4383 of file pbx.c.

References ast_localtime(), ast_log(), ast_timing::daymask, ast_timing::dowmask, LOG_WARNING, ast_timing::minmask, ast_timing::monthmask, and t.

Referenced by iftime(), include_valid(), pbx_builtin_execiftime(), and pbx_builtin_gotoiftime().

04384 {
04385    struct tm tm;
04386    time_t t = time(NULL);
04387 
04388    ast_localtime(&t, &tm, NULL);
04389 
04390    /* If it's not the right month, return */
04391    if (!(i->monthmask & (1 << tm.tm_mon)))
04392       return 0;
04393 
04394    /* If it's not that time of the month.... */
04395    /* Warning, tm_mday has range 1..31! */
04396    if (!(i->daymask & (1 << (tm.tm_mday-1))))
04397       return 0;
04398 
04399    /* If it's not the right day of the week */
04400    if (!(i->dowmask & (1 << tm.tm_wday)))
04401       return 0;
04402 
04403    /* Sanity check the hour just to be safe */
04404    if ((tm.tm_hour < 0) || (tm.tm_hour > 23)) {
04405       ast_log(LOG_WARNING, "Insane time...\n");
04406       return 0;
04407    }
04408 
04409    /* Now the tough part, we calculate if it fits
04410       in the right time based on min/hour */
04411    if (!(i->minmask[tm.tm_hour * 2 + (tm.tm_min >= 30 ? 1 : 0)] & (1 << (tm.tm_min >= 30 ? tm.tm_min - 30 : tm.tm_min))))
04412       return 0;
04413 
04414    /* If we got this far, then we're good */
04415    return 1;
04416 }

int ast_context_add_ignorepat ( const char *  context,
const char *  ignorepat,
const char *  registrar 
)

Add an ignorepat.

Parameters:
context which context to add the ignorpattern to
ignorepat ignorepattern to set up for the extension
registrar registrar of the ignore pattern

Adds an ignore pattern to a particular context.

Return values:
0 on success
-1 on failure

Definition at line 4610 of file pbx.c.

References ast_context_add_ignorepat2(), ast_unlock_contexts(), and find_context_locked().

Referenced by handle_context_add_ignorepat(), and handle_context_add_ignorepat_deprecated().

04611 {
04612    int ret = -1;
04613    struct ast_context *c = find_context_locked(context);
04614 
04615    if (c) {
04616       ret = ast_context_add_ignorepat2(c, value, registrar);
04617       ast_unlock_contexts();
04618    }
04619    return ret;
04620 }

int ast_context_add_ignorepat2 ( struct ast_context con,
const char *  ignorepat,
const char *  registrar 
)

Definition at line 4622 of file pbx.c.

References ast_calloc, ast_mutex_lock(), ast_mutex_unlock(), errno, ast_context::ignorepats, ast_context::lock, ast_ignorepat::next, ast_ignorepat::pattern, and ast_ignorepat::registrar.

Referenced by ast_compile_ael2(), ast_context_add_ignorepat(), and pbx_load_config().

04623 {
04624    struct ast_ignorepat *ignorepat, *ignorepatc, *ignorepatl = NULL;
04625    int length;
04626    char *pattern;
04627    length = sizeof(struct ast_ignorepat);
04628    length += strlen(value) + 1;
04629    if (!(ignorepat = ast_calloc(1, length)))
04630       return -1;
04631    /* The cast to char * is because we need to write the initial value.
04632     * The field is not supposed to be modified otherwise.  Also, gcc 4.2
04633     * sees the cast as dereferencing a type-punned pointer and warns about
04634     * it.  This is the workaround (we're telling gcc, yes, that's really
04635     * what we wanted to do).
04636     */
04637    pattern = (char *) ignorepat->pattern;
04638    strcpy(pattern, value);
04639    ignorepat->next = NULL;
04640    ignorepat->registrar = registrar;
04641    ast_mutex_lock(&con->lock);
04642    for (ignorepatc = con->ignorepats; ignorepatc; ignorepatc = ignorepatc->next) {
04643       ignorepatl = ignorepatc;
04644       if (!strcasecmp(ignorepatc->pattern, value)) {
04645          /* Already there */
04646          ast_mutex_unlock(&con->lock);
04647          errno = EEXIST;
04648          return -1;
04649       }
04650    }
04651    if (ignorepatl)
04652       ignorepatl->next = ignorepat;
04653    else
04654       con->ignorepats = ignorepat;
04655    ast_mutex_unlock(&con->lock);
04656    return 0;
04657 
04658 }

int ast_context_add_include ( const char *  context,
const char *  include,
const char *  registrar 
)

Add a context include.

Parameters:
context context to add include to
include new include to add
registrar who's registering it

Adds an include taking a char * string as the context parameter

Return values:
0 on success
-1 on error

Definition at line 4187 of file pbx.c.

References ast_context_add_include2(), ast_unlock_contexts(), and find_context_locked().

Referenced by handle_context_add_include(), and handle_context_add_include_deprecated().

04188 {
04189    int ret = -1;
04190    struct ast_context *c = find_context_locked(context);
04191 
04192    if (c) {
04193       ret = ast_context_add_include2(c, include, registrar);
04194       ast_unlock_contexts();
04195    }
04196    return ret;
04197 }

int ast_context_add_include2 ( struct ast_context con,
const char *  include,
const char *  registrar 
)

Add a context include.

Parameters:
con context to add the include to
include include to add
registrar who registered the context

Adds an include taking a struct ast_context as the first parameter

Return values:
0 on success
-1 on failure

Definition at line 4425 of file pbx.c.

References ast_build_timing(), ast_calloc, ast_get_context_name(), ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), errno, free, ast_include::hastime, ast_context::includes, ast_context::lock, ast_include::name, ast_include::next, option_verbose, ast_include::registrar, ast_include::rname, ast_include::stuff, ast_include::timing, and VERBOSE_PREFIX_3.

Referenced by ast_compile_ael2(), ast_context_add_include(), and pbx_load_config().

04427 {
04428    struct ast_include *new_include;
04429    char *c;
04430    struct ast_include *i, *il = NULL; /* include, include_last */
04431    int length;
04432    char *p;
04433 
04434    length = sizeof(struct ast_include);
04435    length += 2 * (strlen(value) + 1);
04436 
04437    /* allocate new include structure ... */
04438    if (!(new_include = ast_calloc(1, length)))
04439       return -1;
04440    /* Fill in this structure. Use 'p' for assignments, as the fields
04441     * in the structure are 'const char *'
04442     */
04443    p = new_include->stuff;
04444    new_include->name = p;
04445    strcpy(p, value);
04446    p += strlen(value) + 1;
04447    new_include->rname = p;
04448    strcpy(p, value);
04449    /* Strip off timing info, and process if it is there */
04450    if ( (c = strchr(p, '|')) ) {
04451       *c++ = '\0';
04452            new_include->hastime = ast_build_timing(&(new_include->timing), c);
04453    }
04454    new_include->next      = NULL;
04455    new_include->registrar = registrar;
04456 
04457    ast_mutex_lock(&con->lock);
04458 
04459    /* ... go to last include and check if context is already included too... */
04460    for (i = con->includes; i; i = i->next) {
04461       if (!strcasecmp(i->name, new_include->name)) {
04462          free(new_include);
04463          ast_mutex_unlock(&con->lock);
04464          errno = EEXIST;
04465          return -1;
04466       }
04467       il = i;
04468    }
04469 
04470    /* ... include new context into context list, unlock, return */
04471    if (il)
04472       il->next = new_include;
04473    else
04474       con->includes = new_include;
04475    if (option_verbose > 2)
04476       ast_verbose(VERBOSE_PREFIX_3 "Including context '%s' in context '%s'\n", new_include->name, ast_get_context_name(con));
04477    ast_mutex_unlock(&con->lock);
04478 
04479    return 0;
04480 }

int ast_context_add_switch ( const char *  context,
const char *  sw,
const char *  data,
int  eval,
const char *  registrar 
)

Add a switch.

Parameters:
context context to which to add the switch
sw switch to add
data data to pass to switch
eval whether to evaluate variables when running switch
registrar whoever registered the switch

This function registers a switch with the asterisk switch architecture

Return values:
0 on success
-1 on failure

Definition at line 4487 of file pbx.c.

References ast_context_add_switch2(), ast_unlock_contexts(), and find_context_locked().

04488 {
04489    int ret = -1;
04490    struct ast_context *c = find_context_locked(context);
04491 
04492    if (c) { /* found, add switch to this context */
04493       ret = ast_context_add_switch2(c, sw, data, eval, registrar);
04494       ast_unlock_contexts();
04495    }
04496    return ret;
04497 }

int ast_context_add_switch2 ( struct ast_context con,
const char *  sw,
const char *  data,
int  eval,
const char *  registrar 
)

Adds a switch (first param is a ast_context).

Note:
See ast_context_add_switch() for argument information, with the exception of the first argument. In this case, it's a pointer to an ast_context structure as opposed to the name.

Definition at line 4506 of file pbx.c.

References ast_calloc, ast_get_context_name(), AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE, ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), ast_sw::data, errno, ast_sw::eval, free, ast_context::lock, ast_sw::name, option_verbose, ast_sw::registrar, and VERBOSE_PREFIX_3.

Referenced by ast_compile_ael2(), ast_context_add_switch(), and pbx_load_config().

04508 {
04509    struct ast_sw *new_sw;
04510    struct ast_sw *i;
04511    int length;
04512    char *p;
04513 
04514    length = sizeof(struct ast_sw);
04515    length += strlen(value) + 1;
04516    if (data)
04517       length += strlen(data);
04518    length++;
04519 
04520    /* allocate new sw structure ... */
04521    if (!(new_sw = ast_calloc(1, length)))
04522       return -1;
04523    /* ... fill in this structure ... */
04524    p = new_sw->stuff;
04525    new_sw->name = p;
04526    strcpy(new_sw->name, value);
04527    p += strlen(value) + 1;
04528    new_sw->data = p;
04529    if (data) {
04530       strcpy(new_sw->data, data);
04531       p += strlen(data) + 1;
04532    } else {
04533       strcpy(new_sw->data, "");
04534       p++;
04535    }
04536    new_sw->eval     = eval;
04537    new_sw->registrar = registrar;
04538 
04539    /* ... try to lock this context ... */
04540    ast_mutex_lock(&con->lock);
04541 
04542    /* ... go to last sw and check if context is already swd too... */
04543    AST_LIST_TRAVERSE(&con->alts, i, list) {
04544       if (!strcasecmp(i->name, new_sw->name) && !strcasecmp(i->data, new_sw->data)) {
04545          free(new_sw);
04546          ast_mutex_unlock(&con->lock);
04547          errno = EEXIST;
04548          return -1;
04549       }
04550    }
04551 
04552    /* ... sw new context into context list, unlock, return */
04553    AST_LIST_INSERT_TAIL(&con->alts, new_sw, list);
04554 
04555    if (option_verbose > 2)
04556       ast_verbose(VERBOSE_PREFIX_3 "Including switch '%s/%s' in context '%s'\n", new_sw->name, new_sw->data, ast_get_context_name(con));
04557 
04558    ast_mutex_unlock(&con->lock);
04559 
04560    return 0;
04561 }

struct ast_context* ast_context_create ( struct ast_context **  extcontexts,
const char *  name,
const char *  registrar 
) [read]

Register a new context.

Parameters:
extcontexts pointer to the ast_context structure pointer
name name of the new context
registrar registrar of the context

This will first search for a context with your name. If it exists already, it will not create a new one. If it does not exist, it will create a new one with the given name and registrar.

Returns:
NULL on failure, and an ast_context structure on success

Definition at line 4044 of file pbx.c.

References __ast_context_create().

Referenced by ast_compile_ael2(), load_config(), park_call_full(), reload_config(), and set_config().

04045 {
04046    return __ast_context_create(extcontexts, name, registrar, 0);
04047 }

void ast_context_destroy ( struct ast_context con,
const char *  registrar 
)

Destroy a context (matches the specified context (or ANY context if NULL).

Parameters:
con context to destroy
registrar who registered it

You can optionally leave out either parameter. It will find it based on either the ast_context or the registrar name.

Returns:
nothing

Definition at line 5475 of file pbx.c.

References __ast_context_destroy(), ast_unlock_contexts(), and ast_wrlock_contexts().

Referenced by cleanup_stale_contexts(), sla_destroy(), and unload_module().

05476 {
05477    ast_wrlock_contexts();
05478    __ast_context_destroy(con,registrar);
05479    ast_unlock_contexts();
05480 }

struct ast_context* ast_context_find ( const char *  name  )  [read]

Find a context.

Parameters:
name name of the context to find

Will search for the context with the given name.

Returns:
the ast_context on success, NULL on failure.

Definition at line 948 of file pbx.c.

References ast_rdlock_contexts(), ast_unlock_contexts(), and ast_walk_contexts().

Referenced by _macro_exec(), ast_context_verify_includes(), ast_ignore_pattern(), cleanup_stale_contexts(), do_parking_thread(), load_config(), park_call_full(), park_exec(), register_peer_exten(), reload_config(), set_config(), and unload_module().

00949 {
00950    struct ast_context *tmp = NULL;
00951 
00952    ast_rdlock_contexts();
00953 
00954    while ( (tmp = ast_walk_contexts(tmp)) ) {
00955       if (!name || !strcasecmp(name, tmp->name))
00956          break;
00957    }
00958 
00959    ast_unlock_contexts();
00960 
00961    return tmp;
00962 }

struct ast_context* ast_context_find_or_create ( struct ast_context **  extcontexts,
const char *  name,
const char *  registrar 
) [read]

Definition at line 4049 of file pbx.c.

References __ast_context_create().

Referenced by ast_compile_ael2(), do_parking_thread(), pbx_load_config(), pbx_load_users(), sla_build_station(), and sla_build_trunk().

04050 {
04051    return __ast_context_create(extcontexts, name, registrar, 1);
04052 }

int ast_context_lockmacro ( const char *  context  ) 

locks the macrolock in the given given context

Parameters:
macrocontext name of the macro-context to lock

Locks the given macro-context to ensure only one thread (call) can execute it at a time

Return values:
0 on success
-1 on failure
Note:
This function locks contexts list by &conlist, searches for the right context structure, and locks the macrolock mutex in that context. macrolock is used to limit a macro to be executed by one call at a time.

Definition at line 3006 of file pbx.c.

References ast_get_context_name(), ast_mutex_lock(), ast_rdlock_contexts(), ast_unlock_contexts(), and ast_walk_contexts().

Referenced by _macro_exec().

03007 {
03008    struct ast_context *c = NULL;
03009    int ret = -1;
03010 
03011    ast_rdlock_contexts();
03012 
03013    while ((c = ast_walk_contexts(c))) {
03014       if (!strcmp(ast_get_context_name(c), context)) {
03015          ret = 0;
03016          break;
03017       }
03018    }
03019 
03020    ast_unlock_contexts();
03021 
03022    /* if we found context, lock macrolock */
03023    if (ret == 0) 
03024       ret = ast_mutex_lock(&c->macrolock);
03025 
03026    return ret;
03027 }

int ast_context_remove_extension ( const char *  context,
const char *  extension,
int  priority,
const char *  registrar 
)

Simply remove extension from context.

Parameters:
context context to remove extension from
extension which extension to remove
priority priority of extension to remove (0 to remove all)
callerid NULL to remove all; non-NULL to match a single record per priority
matchcid non-zero to match callerid element (if non-NULL); 0 to match default case
registrar registrar of the extension

This function removes an extension from a given context.

Return values:
0 on success
-1 on failure

Definition at line 2907 of file pbx.c.

References ast_context_remove_extension_callerid().

Referenced by destroy_station(), destroy_trunk(), and register_peer_exten().

02908 {
02909    return ast_context_remove_extension_callerid(context, extension, priority, NULL, 0, registrar);
02910 }

int ast_context_remove_extension2 ( struct ast_context con,
const char *  extension,
int  priority,
const char *  registrar 
)

This functionc locks given context, search for the right extension and fires out all peer in this extensions with given priority. If priority is set to 0, all peers are removed. After that, unlock context and return.

Note:
When do you want to call this function, make sure that &conlock is locked, because some process can handle with your *con context before you lock it.

Definition at line 2934 of file pbx.c.

References ast_context_remove_extension_callerid2().

Referenced by do_parking_thread(), load_config(), and park_exec().

02935 {
02936    return ast_context_remove_extension_callerid2(con, extension, priority, NULL, 0, registrar);
02937 }

int ast_context_remove_extension_callerid ( const char *  context,
const char *  extension,
int  priority,
const char *  callerid,
int  matchcid,
const char *  registrar 
)

Definition at line 2912 of file pbx.c.

References ast_context_remove_extension_callerid2(), ast_unlock_contexts(), and find_context_locked().

Referenced by ast_context_remove_extension(), handle_context_remove_extension(), and handle_context_remove_extension_deprecated().

02913 {
02914    int ret = -1; /* default error return */
02915    struct ast_context *c = find_context_locked(context);
02916 
02917    if (c) { /* ... remove extension ... */
02918       ret = ast_context_remove_extension_callerid2(c, extension, priority, callerid, matchcid, registrar);
02919       ast_unlock_contexts();
02920    }
02921    return ret;
02922 }

int ast_context_remove_extension_callerid2 ( struct ast_context con,
const char *  extension,
int  priority,
const char *  callerid,
int  matchcid,
const char *  registrar 
)

Definition at line 2939 of file pbx.c.

References ast_mutex_lock(), ast_mutex_unlock(), ast_exten::cidmatch, destroy_exten(), ast_exten::exten, exten, ast_context::lock, ast_exten::next, ast_exten::peer, ast_exten::priority, ast_exten::registrar, and ast_context::root.

Referenced by ast_context_remove_extension2(), and ast_context_remove_extension_callerid().

02940 {
02941    struct ast_exten *exten, *prev_exten = NULL;
02942    struct ast_exten *peer;
02943    struct ast_exten *previous_peer = NULL;
02944    struct ast_exten *next_peer = NULL;
02945    int found = 0;
02946 
02947    ast_mutex_lock(&con->lock);
02948 
02949    /* scan the extension list to find first matching extension-registrar */
02950    for (exten = con->root; exten; prev_exten = exten, exten = exten->next) {
02951       if (!strcmp(exten->exten, extension) &&
02952          (!registrar || !strcmp(exten->registrar, registrar)))
02953          break;
02954    }
02955    if (!exten) {
02956       /* we can't find right extension */
02957       ast_mutex_unlock(&con->lock);
02958       return -1;
02959    }
02960 
02961    /* scan the priority list to remove extension with exten->priority == priority */
02962    for (peer = exten, next_peer = exten->peer ? exten->peer : exten->next;
02963          peer && !strcmp(peer->exten, extension);
02964          peer = next_peer, next_peer = next_peer ? (next_peer->peer ? next_peer->peer : next_peer->next) : NULL) {
02965       if ((priority == 0 || peer->priority == priority) &&
02966             (!callerid || !matchcid || (matchcid && !strcmp(peer->cidmatch, callerid))) &&
02967             (!registrar || !strcmp(peer->registrar, registrar) )) {
02968          found = 1;
02969 
02970          /* we are first priority extension? */
02971          if (!previous_peer) {
02972             /*
02973              * We are first in the priority chain, so must update the extension chain.
02974              * The next node is either the next priority or the next extension
02975              */
02976             struct ast_exten *next_node = peer->peer ? peer->peer : peer->next;
02977 
02978             if (!prev_exten) {   /* change the root... */
02979                con->root = next_node;
02980             } else {
02981                prev_exten->next = next_node; /* unlink */
02982             }
02983             if (peer->peer)   { /* update the new head of the pri list */
02984                peer->peer->next = peer->next;
02985             }
02986          } else { /* easy, we are not first priority in extension */
02987             previous_peer->peer = peer->peer;
02988          }
02989 
02990          /* now, free whole priority extension */
02991          destroy_exten(peer);
02992       } else {
02993          previous_peer = peer;
02994       }
02995    }
02996    ast_mutex_unlock(&con->lock);
02997    return found ? 0 : -1;
02998 }

int ast_context_remove_ignorepat ( const char *  context,
const char *  ignorepat,
const char *  registrar 
)

Definition at line 4567 of file pbx.c.

References ast_context_remove_ignorepat2(), ast_unlock_contexts(), and find_context_locked().

Referenced by handle_context_remove_ignorepat(), and handle_context_remove_ignorepat_deprecated().

04568 {
04569    int ret = -1;
04570    struct ast_context *c = find_context_locked(context);
04571 
04572    if (c) {
04573       ret = ast_context_remove_ignorepat2(c, ignorepat, registrar);
04574       ast_unlock_contexts();
04575    }
04576    return ret;
04577 }

int ast_context_remove_ignorepat2 ( struct ast_context con,
const char *  ignorepat,
const char *  registrar 
)

Definition at line 4579 of file pbx.c.

References ast_mutex_lock(), ast_mutex_unlock(), errno, free, ast_context::ignorepats, ast_context::lock, ast_ignorepat::next, ast_ignorepat::pattern, and ast_ignorepat::registrar.

Referenced by ast_context_remove_ignorepat().

04580 {
04581    struct ast_ignorepat *ip, *ipl = NULL;
04582 
04583    ast_mutex_lock(&con->lock);
04584 
04585    for (ip = con->ignorepats; ip; ip = ip->next) {
04586       if (!strcmp(ip->pattern, ignorepat) &&
04587          (!registrar || (registrar == ip->registrar))) {
04588          if (ipl) {
04589             ipl->next = ip->next;
04590             free(ip);
04591          } else {
04592             con->ignorepats = ip->next;
04593             free(ip);
04594          }
04595          ast_mutex_unlock(&con->lock);
04596          return 0;
04597       }
04598       ipl = ip;
04599    }
04600 
04601    ast_mutex_unlock(&con->lock);
04602    errno = EINVAL;
04603    return -1;
04604 }

int ast_context_remove_include ( const char *  context,
const char *  include,
const char *  registrar 
)

Remove a context include.

Note:
See ast_context_add_include for information on arguments
Return values:
0 on success
-1 on failure

Definition at line 2803 of file pbx.c.

References ast_context_remove_include2(), ast_unlock_contexts(), and find_context_locked().

Referenced by handle_context_dont_include_deprecated(), and handle_context_remove_include().

02804 {
02805    int ret = -1;
02806    struct ast_context *c = find_context_locked(context);
02807 
02808    if (c) {
02809       /* found, remove include from this context ... */
02810       ret = ast_context_remove_include2(c, include, registrar);
02811       ast_unlock_contexts();
02812    }
02813    return ret;
02814 }

int ast_context_remove_include2 ( struct ast_context con,
const char *  include,
const char *  registrar 
)

Removes an include by an ast_context structure.

Note:
See ast_context_add_include2 for information on arguments
Return values:
0 on success
-1 on success

Definition at line 2824 of file pbx.c.

References ast_mutex_lock(), ast_mutex_unlock(), free, ast_context::includes, ast_context::lock, ast_include::name, ast_include::next, and ast_include::registrar.

Referenced by ast_context_remove_include().

02825 {
02826    struct ast_include *i, *pi = NULL;
02827    int ret = -1;
02828 
02829    ast_mutex_lock(&con->lock);
02830 
02831    /* find our include */
02832    for (i = con->includes; i; pi = i, i = i->next) {
02833       if (!strcmp(i->name, include) &&
02834             (!registrar || !strcmp(i->registrar, registrar))) {
02835          /* remove from list */
02836          if (pi)
02837             pi->next = i->next;
02838          else
02839             con->includes = i->next;
02840          /* free include and return */
02841          free(i);
02842          ret = 0;
02843          break;
02844       }
02845    }
02846 
02847    ast_mutex_unlock(&con->lock);
02848    return ret;
02849 }

int ast_context_remove_switch ( const char *  context,
const char *  sw,
const char *  data,
const char *  registrar 
)

Remove a switch.

Removes a switch with the given parameters

Return values:
0 on success
-1 on failure
Note:
This function locks contexts list by &conlist, search for the rigt context structure, leave context list locked and call ast_context_remove_switch2 which removes switch, unlock contexts list and return ...

Definition at line 2856 of file pbx.c.

References ast_context_remove_switch2(), ast_unlock_contexts(), and find_context_locked().

02857 {
02858    int ret = -1; /* default error return */
02859    struct ast_context *c = find_context_locked(context);
02860 
02861    if (c) {
02862       /* remove switch from this context ... */
02863       ret = ast_context_remove_switch2(c, sw, data, registrar);
02864       ast_unlock_contexts();
02865    }
02866    return ret;
02867 }

int ast_context_remove_switch2 ( struct ast_context con,
const char *  sw,
const char *  data,
const char *  registrar 
)

This function locks given context, removes switch, unlock context and return.

Note:
When we call this function, &conlock lock must be locked, because when we giving *con argument, some process can remove/change this context and after that there can be segfault.

Definition at line 2877 of file pbx.c.

References AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_mutex_lock(), ast_mutex_unlock(), ast_sw::data, free, ast_context::lock, ast_sw::name, and ast_sw::registrar.

Referenced by ast_context_remove_switch().

02878 {
02879    struct ast_sw *i;
02880    int ret = -1;
02881 
02882    ast_mutex_lock(&con->lock);
02883 
02884    /* walk switches */
02885    AST_LIST_TRAVERSE_SAFE_BEGIN(&con->alts, i, list) {
02886       if (!strcmp(i->name, sw) && !strcmp(i->data, data) &&
02887          (!registrar || !strcmp(i->registrar, registrar))) {
02888          /* found, remove from list */
02889          AST_LIST_REMOVE_CURRENT(&con->alts, list);
02890          free(i); /* free switch and return */
02891          ret = 0;
02892          break;
02893       }
02894    }
02895    AST_LIST_TRAVERSE_SAFE_END
02896 
02897    ast_mutex_unlock(&con->lock);
02898 
02899    return ret;
02900 }

int ast_context_unlockmacro ( const char *  context  ) 

Unlocks the macrolock in the given context.

Parameters:
macrocontext name of the macro-context to unlock

Unlocks the given macro-context so that another thread (call) can execute it

Return values:
0 on success
-1 on failure
Note:
This function locks contexts list by &conlist, searches for the right context structure, and unlocks the macrolock mutex in that context. macrolock is used to limit a macro to be executed by one call at a time.

Definition at line 3034 of file pbx.c.

References ast_get_context_name(), ast_mutex_unlock(), ast_rdlock_contexts(), ast_unlock_contexts(), and ast_walk_contexts().

Referenced by _macro_exec().

03035 {
03036    struct ast_context *c = NULL;
03037    int ret = -1;
03038 
03039    ast_rdlock_contexts();
03040 
03041    while ((c = ast_walk_contexts(c))) {
03042       if (!strcmp(ast_get_context_name(c), context)) {
03043          ret = 0;
03044          break;
03045       }
03046    }
03047 
03048    ast_unlock_contexts();
03049 
03050    /* if we found context, unlock macrolock */
03051    if (ret == 0) 
03052       ret = ast_mutex_unlock(&c->macrolock);
03053 
03054    return ret;
03055 }

int ast_context_verify_includes ( struct ast_context con  ) 

Verifies includes in an ast_contect structure.

Parameters:
con context in which to verify the includes
Return values:
0 if no problems found
-1 if there were any missing context

Definition at line 6570 of file pbx.c.

References ast_context_find(), ast_get_context_name(), ast_log(), ast_walk_context_includes(), LOG_WARNING, and ast_include::rname.

Referenced by pbx_load_module().

06571 {
06572    struct ast_include *inc = NULL;
06573    int res = 0;
06574 
06575    while ( (inc = ast_walk_context_includes(con, inc)) ) {
06576       if (ast_context_find(inc->rname))
06577          continue;
06578 
06579       res = -1;
06580       ast_log(LOG_WARNING, "Context '%s' tries to include nonexistent context '%s'\n",
06581          ast_get_context_name(con), inc->rname);
06582       break;
06583    }
06584 
06585    return res;
06586 }

struct ast_custom_function* ast_custom_function_find ( const char *  name  )  [read]

Definition at line 1510 of file pbx.c.

References ast_custom_function::acflist, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, and ast_custom_function::name.

Referenced by ast_custom_function_register(), ast_func_read(), ast_func_write(), handle_show_function(), and handle_show_function_deprecated().

01511 {
01512    struct ast_custom_function *acf = NULL;
01513 
01514    AST_LIST_LOCK(&acf_root);
01515    AST_LIST_TRAVERSE(&acf_root, acf, acflist) {
01516       if (!strcmp(name, acf->name))
01517          break;
01518    }
01519    AST_LIST_UNLOCK(&acf_root);
01520 
01521    return acf;
01522 }

int ast_custom_function_register ( struct ast_custom_function acf  ) 

Reigster a custom function.

Definition at line 1546 of file pbx.c.

References ast_custom_function::acflist, ast_custom_function_find(), AST_LIST_INSERT_BEFORE_CURRENT, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, ast_log(), ast_verbose(), LOG_ERROR, ast_custom_function::name, option_verbose, and VERBOSE_PREFIX_2.

Referenced by load_module(), odbc_load_module(), and reload().

01547 {
01548    struct ast_custom_function *cur;
01549 
01550    if (!acf)
01551       return -1;
01552 
01553    AST_LIST_LOCK(&acf_root);
01554 
01555    if (ast_custom_function_find(acf->name)) {
01556       ast_log(LOG_ERROR, "Function %s already registered.\n", acf->name);
01557       AST_LIST_UNLOCK(&acf_root);
01558       return -1;
01559    }
01560 
01561    /* Store in alphabetical order */
01562    AST_LIST_TRAVERSE_SAFE_BEGIN(&acf_root, cur, acflist) {
01563       if (strcasecmp(acf->name, cur->name) < 0) {
01564          AST_LIST_INSERT_BEFORE_CURRENT(&acf_root, acf, acflist);
01565          break;
01566       }
01567    }
01568    AST_LIST_TRAVERSE_SAFE_END
01569    if (!cur)
01570       AST_LIST_INSERT_TAIL(&acf_root, acf, acflist);
01571 
01572    AST_LIST_UNLOCK(&acf_root);
01573 
01574    if (option_verbose > 1)
01575       ast_verbose(VERBOSE_PREFIX_2 "Registered custom function %s\n", acf->name);
01576 
01577    return 0;
01578 }

int ast_custom_function_unregister ( struct ast_custom_function acf  ) 

Unregister a custom function.

Definition at line 1524 of file pbx.c.

References ast_custom_function::acflist, AST_LIST_LOCK, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, ast_verbose(), ast_custom_function::name, option_verbose, and VERBOSE_PREFIX_2.

Referenced by odbc_unload_module(), reload(), and unload_module().

01525 {
01526    struct ast_custom_function *cur;
01527 
01528    if (!acf)
01529       return -1;
01530 
01531    AST_LIST_LOCK(&acf_root);
01532    AST_LIST_TRAVERSE_SAFE_BEGIN(&acf_root, cur, acflist) {
01533       if (cur == acf) {
01534          AST_LIST_REMOVE_CURRENT(&acf_root, acflist);
01535          if (option_verbose > 1)
01536             ast_verbose(VERBOSE_PREFIX_2 "Unregistered custom function %s\n", acf->name);
01537          break;
01538       }
01539    }
01540    AST_LIST_TRAVERSE_SAFE_END
01541    AST_LIST_UNLOCK(&acf_root);
01542 
01543    return acf ? 0 : -1;
01544 }

enum ast_extension_states ast_devstate_to_extenstate ( enum ast_device_state  devstate  ) 

Map devstate to an extension state.

Parameters:
[in] device state
Returns:
the extension state mapping.

Definition at line 1974 of file pbx.c.

References AST_DEVICE_BUSY, AST_DEVICE_INUSE, AST_DEVICE_INVALID, AST_DEVICE_NOT_INUSE, AST_DEVICE_ONHOLD, AST_DEVICE_RINGING, AST_DEVICE_RINGINUSE, AST_DEVICE_TOTAL, AST_DEVICE_UNAVAILABLE, AST_DEVICE_UNKNOWN, AST_EXTENSION_BUSY, AST_EXTENSION_INUSE, AST_EXTENSION_NOT_INUSE, AST_EXTENSION_ONHOLD, AST_EXTENSION_RINGING, and AST_EXTENSION_UNAVAILABLE.

Referenced by ast_extension_state2().

01975 {
01976    switch (devstate) {
01977    case AST_DEVICE_ONHOLD:
01978       return AST_EXTENSION_ONHOLD;
01979    case AST_DEVICE_BUSY:
01980       return AST_EXTENSION_BUSY;
01981    case AST_DEVICE_UNKNOWN:
01982       return AST_EXTENSION_NOT_INUSE;
01983    case AST_DEVICE_UNAVAILABLE:
01984    case AST_DEVICE_INVALID:
01985       return AST_EXTENSION_UNAVAILABLE;
01986    case AST_DEVICE_RINGINUSE:
01987       return (AST_EXTENSION_INUSE | AST_EXTENSION_RINGING);
01988    case AST_DEVICE_RINGING:
01989       return AST_EXTENSION_RINGING;
01990    case AST_DEVICE_INUSE:
01991       return AST_EXTENSION_INUSE;
01992    case AST_DEVICE_NOT_INUSE:
01993       return AST_EXTENSION_NOT_INUSE;
01994    case AST_DEVICE_TOTAL: /* not a device state, included for completeness */
01995       break;
01996    }
01997 
01998    return AST_EXTENSION_NOT_INUSE;
01999 }

int ast_exists_extension ( struct ast_channel c,
const char *  context,
const char *  exten,
int  priority,
const char *  callerid 
)

Determine whether an extension exists.

Parameters:
c this is not important
context which context to look in
exten which extension to search for
priority priority of the action within the extension
callerid callerid to search for
Note:
It is possible for autoservice to be started and stopped on c during this function call, it is important that c is not locked prior to calling this. Otherwise a deadlock may occur
Returns:
If an extension within the given context(or callerid) with the given priority is found a non zero value will be returned. Otherwise, 0 is returned.

Definition at line 2366 of file pbx.c.

References E_MATCH, and pbx_extension_helper().

Referenced by __ast_goto_if_exists(), __ast_pbx_run(), __login_exec(), _macro_exec(), agentmonitoroutgoing_exec(), answer_call(), ast_app_dtget(), ast_bridge_call(), ast_pbx_outgoing_exten(), cb_events(), conf_run(), console_dial(), console_dial_deprecated(), console_transfer(), console_transfer_deprecated(), dahdi_handle_dtmf(), dahdi_r2_on_call_offered(), dahdi_r2_on_dnis_digit_received(), disa_exec(), dp_lookup(), dundi_lookup_local(), findmeexec(), get_also_info(), get_destination(), get_refer_info(), handle_link_data(), handle_link_phone_dtmf(), handle_stimulus_message(), leave_voicemail(), local_alloc(), local_call(), local_devicestate(), local_dtmf_helper(), loopback_exists(), metermaidstate(), mgcp_ss(), misdn_overlap_dial_task(), park_space_reserve(), parkandannounce_exec(), pbx_builtin_waitexten(), phone_check_exception(), pri_dchannel(), process_ast_dsp(), register_peer_exten(), rpt_exec(), sip_new(), skinny_ss(), socket_process(), ss_thread(), and waitstream_core().

02367 {
02368    return pbx_extension_helper(c, NULL, context, exten, priority, NULL, callerid, E_MATCH);
02369 }

int ast_explicit_goto ( struct ast_channel chan,
const char *  context,
const char *  exten,
int  priority 
)
Note:
This function will handle locking the channel as needed.

Definition at line 4694 of file pbx.c.

References ast_channel_lock, ast_channel_unlock, ast_copy_string(), AST_FLAG_IN_AUTOLOOP, ast_strlen_zero(), ast_test_flag, ast_channel::context, ast_channel::exten, and ast_channel::priority.

Referenced by __ast_goto_if_exists(), ast_async_goto(), ast_parseable_goto(), builtin_atxfer(), disa_exec(), and handle_setpriority().

04695 {
04696    if (!chan)
04697       return -1;
04698 
04699    ast_channel_lock(chan);
04700 
04701    if (!ast_strlen_zero(context))
04702       ast_copy_string(chan->context, context, sizeof(chan->context));
04703    if (!ast_strlen_zero(exten))
04704       ast_copy_string(chan->exten, exten, sizeof(chan->exten));
04705    if (priority > -1) {
04706       chan->priority = priority;
04707       /* see flag description in channel.h for explanation */
04708       if (ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP))
04709          chan->priority--;
04710    }
04711 
04712    ast_channel_unlock(chan);
04713 
04714    return 0;
04715 }

int ast_extension_close ( const char *  pattern,
const char *  data,
int  needmore 
)

Definition at line 941 of file pbx.c.

References ast_log(), E_CANMATCH, E_MATCHMORE, extension_match_core(), and LOG_WARNING.

Referenced by realtime_switch_common().

00942 {
00943    if (needmore != E_MATCHMORE && needmore != E_CANMATCH)
00944       ast_log(LOG_WARNING, "invalid argument %d\n", needmore);
00945    return extension_match_core(pattern, data, needmore);
00946 }

int ast_extension_match ( const char *  pattern,
const char *  extension 
)

Determine if a given extension matches a given pattern (in NXX format).

Parameters:
pattern pattern to match
extension extension to check against the pattern.

Checks whether or not the given extension matches the given pattern.

Return values:
1 on match
0 on failure

Definition at line 936 of file pbx.c.

References E_MATCH, and extension_match_core().

Referenced by ast_ignore_pattern(), do_say(), find_matching_priority(), loopback_canmatch(), loopback_exists(), loopback_matchmore(), matchcid(), misdn_cfg_is_msn_valid(), realtime_switch_common(), and show_dialplan_helper().

00937 {
00938    return extension_match_core(pattern, data, E_MATCH);
00939 }

int ast_extension_patmatch ( const char *  pattern,
const char *  data 
)
int ast_extension_state ( struct ast_channel c,
const char *  context,
const char *  exten 
)

Uses hint and devicestate callback to get the state of an extension.

Parameters:
c this is not important
context which context to look in
exten which extension to get state
Returns:
extension state as defined in the ast_extension_states enum

Definition at line 2036 of file pbx.c.

References ast_extension_state2(), and ast_hint_extension().

Referenced by action_extensionstate(), and handle_request_subscribe().

02037 {
02038    struct ast_exten *e;
02039 
02040    e = ast_hint_extension(c, context, exten);   /* Do we have a hint for this extension ? */
02041    if (!e)
02042       return -1;           /* No hint, return -1 */
02043 
02044    return ast_extension_state2(e);        /* Check all devices in the hint */
02045 }

const char* ast_extension_state2str ( int  extension_state  ) 

Return string representation of the state of an extension.

Parameters:
extension_state is the numerical state delivered by ast_extension_state
Returns:
the state of an extension as string

Definition at line 2024 of file pbx.c.

References extension_states, and cfextension_states::text.

Referenced by __sip_show_channels(), handle_request_subscribe(), handle_show_hints(), and notify_extenstate_update().

02025 {
02026    int i;
02027 
02028    for (i = 0; (i < (sizeof(extension_states) / sizeof(extension_states[0]))); i++) {
02029       if (extension_states[i].extension_state == extension_state)
02030          return extension_states[i].text;
02031    }
02032    return "Unknown";
02033 }

int ast_extension_state_add ( const char *  context,
const char *  exten,
ast_state_cb_type  callback,
void *  data 
)

Registers a state change callback.

Parameters:
context which context to look in
exten which extension to get state
callback callback to call if state changed
data to pass to callback

The callback is called if the state of an extension is changed.

Return values:
-1 on failure
ID on success

Definition at line 2118 of file pbx.c.

References ao2_find(), ao2_lock(), ao2_ref(), ao2_unlock(), ast_calloc, ast_hint_extension(), ast_state_cb::callback, ast_hint::callbacks, ast_state_cb::data, ast_state_cb::id, and ast_state_cb::next.

Referenced by handle_request_subscribe(), and init_manager().

02120 {
02121    struct ast_hint *hint;
02122    struct ast_state_cb *cblist;
02123    struct ast_exten *e;
02124 
02125    /* If there's no context and extension:  add callback to statecbs list */
02126    if (!context && !exten) {
02127       ao2_lock(hints);
02128 
02129       for (cblist = statecbs; cblist; cblist = cblist->next) {
02130          if (cblist->callback == callback) {
02131             cblist->data = data;
02132             ao2_unlock(hints);
02133             return 0;
02134          }
02135       }
02136 
02137       /* Now insert the callback */
02138       if (!(cblist = ast_calloc(1, sizeof(*cblist)))) {
02139          ao2_unlock(hints);
02140          return -1;
02141       }
02142       cblist->id = 0;
02143       cblist->callback = callback;
02144       cblist->data = data;
02145 
02146       cblist->next = statecbs;
02147       statecbs = cblist;
02148 
02149       ao2_unlock(hints);
02150       return 0;
02151    }
02152 
02153    if (!context || !exten)
02154       return -1;
02155 
02156    /* This callback type is for only one hint, so get the hint */
02157    e = ast_hint_extension(NULL, context, exten);
02158    if (!e) {
02159       return -1;
02160    }
02161 
02162    hint = ao2_find(hints, e, 0);
02163 
02164    if (!hint) {
02165       return -1;
02166    }
02167 
02168    /* Now insert the callback in the callback list  */
02169    if (!(cblist = ast_calloc(1, sizeof(*cblist)))) {
02170       ao2_ref(hint, -1);
02171       return -1;
02172    }
02173    cblist->id = stateid++;    /* Unique ID for this callback */
02174    cblist->callback = callback;  /* Pointer to callback routine */
02175    cblist->data = data;    /* Data for the callback */
02176 
02177    ao2_lock(hint);
02178    cblist->next = hint->callbacks;
02179    hint->callbacks = cblist;
02180    ao2_unlock(hint);
02181 
02182    ao2_ref(hint, -1);
02183 
02184    return cblist->id;
02185 }

int ast_extension_state_del ( int  id,
ast_state_cb_type  callback 
)

Deletes a registered state change callback by ID.

Parameters:
id of the callback to delete
callback callback

Removes the callback from list of callbacks

Return values:
0 success
-1 failure

Definition at line 2203 of file pbx.c.

References ao2_callback(), ao2_lock(), ao2_ref(), ao2_unlock(), ast_hint::callbacks, find_hint_by_cb_id(), free, and ast_state_cb::next.

Referenced by __sip_destroy(), and handle_request_subscribe().

02204 {
02205    struct ast_state_cb **p_cur = NULL; /* address of pointer to us */
02206    int ret = -1;
02207 
02208    if (!id && !callback) {
02209       return -1;
02210    }
02211 
02212    if (!id) {  /* id == 0 is a callback without extension */
02213       ao2_lock(hints);
02214       for (p_cur = &statecbs; *p_cur; p_cur = &(*p_cur)->next) {
02215          if ((*p_cur)->callback == callback) {
02216             break;
02217          }
02218       }
02219       if (p_cur && *p_cur) {
02220          struct ast_state_cb *cur = *p_cur;
02221          *p_cur = cur->next;
02222          free(cur);
02223          ret = 0;
02224       }
02225       ao2_unlock(hints);
02226    } else { /* callback with extension, find the callback based on ID */
02227       struct ast_hint *hint;
02228 
02229       hint = ao2_callback(hints, 0, find_hint_by_cb_id, &id);
02230 
02231       if (hint) {
02232          ao2_lock(hint);
02233          for (p_cur = &hint->callbacks; *p_cur; p_cur = &(*p_cur)->next) {
02234             if ((*p_cur)->id == id) {
02235                break;
02236             }
02237          }
02238          if (p_cur && *p_cur) {
02239             struct ast_state_cb *cur = *p_cur;
02240             *p_cur = cur->next;
02241             free(cur);
02242             ret = 0;
02243          }
02244          ao2_unlock(hint);
02245          ao2_ref(hint, -1);
02246       }
02247    }
02248 
02249    return ret;
02250 }

int ast_findlabel_extension ( struct ast_channel c,
const char *  context,
const char *  exten,
const char *  label,
const char *  callerid 
)

Find the priority of an extension that has the specified label.

Parameters:
c this is not important
context which context to look in
exten which extension to search for
label label of the action within the extension to match to priority
callerid callerid to search for
Note:
It is possible for autoservice to be started and stopped on c during this function call, it is important that c is not locked prior to calling this. Otherwise a deadlock may occur
Returns:
the priority which matches the given label in the extension or -1 if not found.

Definition at line 2371 of file pbx.c.

References E_FINDLABEL, and pbx_extension_helper().

Referenced by action_originate(), action_redirect(), ast_parseable_goto(), asyncgoto_exec(), and handle_setpriority().

02372 {
02373    return pbx_extension_helper(c, NULL, context, exten, 0, label, callerid, E_FINDLABEL);
02374 }

int ast_findlabel_extension2 ( struct ast_channel c,
struct ast_context con,
const char *  exten,
const char *  label,
const char *  callerid 
)

Find the priority of an extension that has the specified label.

Note:
It is possible for autoservice to be started and stopped on c during this function call, it is important that c is not locked prior to calling this. Otherwise a deadlock may occur
This function is the same as ast_findlabel_extension, except that it accepts a pointer to an ast_context structure to specify the context instead of the name of the context. Otherwise, the functions behave the same.

Definition at line 2376 of file pbx.c.

References E_FINDLABEL, and pbx_extension_helper().

Referenced by pbx_load_config().

02377 {
02378    return pbx_extension_helper(c, con, NULL, exten, 0, label, callerid, E_FINDLABEL);
02379 }

int ast_func_read ( struct ast_channel chan,
char *  function,
char *  workspace,
size_t  len 
)

executes a read operation on a function

Parameters:
chan Channel to execute on
function Data containing the function call string (will be modified)
workspace A pointer to safe memory to use for a return value
len the number of bytes in workspace

This application executes a function in read mode on a given channel.

Returns:
zero on success, non-zero on failure

Definition at line 1600 of file pbx.c.

References ast_custom_function_find(), ast_log(), func_args(), LOG_ERROR, and ast_custom_function::read.

Referenced by action_getvar(), handle_getvariable(), and pbx_substitute_variables_helper_full().

01601 {
01602    char *args = func_args(function);
01603    struct ast_custom_function *acfptr = ast_custom_function_find(function);
01604 
01605    if (acfptr == NULL)
01606       ast_log(LOG_ERROR, "Function %s not registered\n", function);
01607    else if (!acfptr->read)
01608       ast_log(LOG_ERROR, "Function %s cannot be read\n", function);
01609    else
01610       return acfptr->read(chan, function, args, workspace, len);
01611    return -1;
01612 }

int ast_func_write ( struct ast_channel chan,
char *  function,
const char *  value 
)

executes a write operation on a function

Parameters:
chan Channel to execute on
function Data containing the function call string (will be modified)
value A value parameter to pass for writing

This application executes a function in write mode on a given channel.

Returns:
zero on success, non-zero on failure

Definition at line 1614 of file pbx.c.

References ast_custom_function_find(), ast_log(), func_args(), LOG_ERROR, and ast_custom_function::write.

Referenced by action_setvar(), pbx_builtin_pushvar_helper(), and pbx_builtin_setvar_helper().

01615 {
01616    char *args = func_args(function);
01617    struct ast_custom_function *acfptr = ast_custom_function_find(function);
01618 
01619    if (acfptr == NULL)
01620       ast_log(LOG_ERROR, "Function %s not registered\n", function);
01621    else if (!acfptr->write)
01622       ast_log(LOG_ERROR, "Function %s cannot be written to\n", function);
01623    else
01624       return acfptr->write(chan, function, args, value);
01625 
01626    return -1;
01627 }

const char* ast_get_context_name ( struct ast_context con  ) 
const char* ast_get_context_registrar ( struct ast_context c  ) 

Definition at line 6465 of file pbx.c.

References ast_context::registrar.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06466 {
06467    return c ? c->registrar : NULL;
06468 }

const char* ast_get_extension_app ( struct ast_exten e  ) 
void* ast_get_extension_app_data ( struct ast_exten e  ) 

Definition at line 6500 of file pbx.c.

References ast_exten::data.

Referenced by _macro_exec(), ast_get_hint(), handle_save_dialplan(), and print_ext().

06501 {
06502    return e ? e->data : NULL;
06503 }

const char* ast_get_extension_cidmatch ( struct ast_exten e  ) 

Definition at line 6490 of file pbx.c.

References ast_exten::cidmatch.

Referenced by complete_context_remove_extension(), complete_context_remove_extension_deprecated(), find_matching_priority(), and handle_save_dialplan().

06491 {
06492    return e ? e->cidmatch : NULL;
06493 }

struct ast_context* ast_get_extension_context ( struct ast_exten exten  )  [read]

Definition at line 6432 of file pbx.c.

References ast_exten::parent.

Referenced by handle_show_hints().

06433 {
06434    return exten ? exten->parent : NULL;
06435 }

const char* ast_get_extension_label ( struct ast_exten e  ) 

Definition at line 6442 of file pbx.c.

References ast_exten::label.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06443 {
06444    return exten ? exten->label : NULL;
06445 }

int ast_get_extension_matchcid ( struct ast_exten e  ) 

Definition at line 6485 of file pbx.c.

References ast_exten::matchcid.

Referenced by complete_context_remove_extension(), complete_context_remove_extension_deprecated(), find_matching_priority(), and handle_save_dialplan().

06486 {
06487    return e ? e->matchcid : 0;
06488 }

const char* ast_get_extension_name ( struct ast_exten exten  ) 
int ast_get_extension_priority ( struct ast_exten exten  ) 

Definition at line 6457 of file pbx.c.

References ast_exten::priority.

Referenced by complete_context_remove_extension(), complete_context_remove_extension_deprecated(), find_matching_priority(), handle_save_dialplan(), and print_ext().

06458 {
06459    return exten ? exten->priority : -1;
06460 }

const char* ast_get_extension_registrar ( struct ast_exten e  ) 

Definition at line 6470 of file pbx.c.

References ast_exten::registrar.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06471 {
06472    return e ? e->registrar : NULL;
06473 }

int ast_get_hint ( char *  hint,
int  hintsize,
char *  name,
int  namesize,
struct ast_channel c,
const char *  context,
const char *  exten 
)

If an extension exists, return non-zero.

Parameters:
hint buffer for hint
maxlen size of hint buffer
name buffer for name portion of hint
maxnamelen size of name buffer
c this is not important
context which context to look in
exten which extension to search for
Returns:
If an extension within the given context with the priority PRIORITY_HINT is found a non zero value will be returned. Otherwise, 0 is returned.

Definition at line 2349 of file pbx.c.

References ast_copy_string(), ast_get_extension_app(), ast_get_extension_app_data(), and ast_hint_extension().

Referenced by action_extensionstate(), get_cid_name(), get_destination(), pbx_retrieve_variable(), and transmit_state_notify().

02350 {
02351    struct ast_exten *e = ast_hint_extension(c, context, exten);
02352 
02353    if (e) {
02354       if (hint)
02355          ast_copy_string(hint, ast_get_extension_app(e), hintsize);
02356       if (name) {
02357          const char *tmp = ast_get_extension_app_data(e);
02358          if (tmp)
02359             ast_copy_string(name, tmp, namesize);
02360       }
02361       return -1;
02362    }
02363    return 0;
02364 }

const char* ast_get_ignorepat_name ( struct ast_ignorepat ip  ) 

Definition at line 6452 of file pbx.c.

References ast_ignorepat::pattern.

Referenced by complete_context_remove_ignorepat(), complete_context_remove_ignorepat_deprecated(), handle_save_dialplan(), lookup_c_ip(), and show_dialplan_helper().

06453 {
06454    return ip ? ip->pattern : NULL;
06455 }

const char* ast_get_ignorepat_registrar ( struct ast_ignorepat ip  ) 

Definition at line 6480 of file pbx.c.

References ast_ignorepat::registrar.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06481 {
06482    return ip ? ip->registrar : NULL;
06483 }

const char* ast_get_include_name ( struct ast_include include  ) 

Definition at line 6447 of file pbx.c.

References ast_include::name.

Referenced by complete_context_dont_include_deprecated(), complete_context_remove_include(), find_matching_priority(), handle_save_dialplan(), lookup_ci(), and show_dialplan_helper().

06448 {
06449    return inc ? inc->name : NULL;
06450 }

const char* ast_get_include_registrar ( struct ast_include i  ) 

Definition at line 6475 of file pbx.c.

References ast_include::registrar.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06476 {
06477    return i ? i->registrar : NULL;
06478 }

const char* ast_get_switch_data ( struct ast_sw sw  ) 

Definition at line 6510 of file pbx.c.

References ast_sw::data.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06511 {
06512    return sw ? sw->data : NULL;
06513 }

const char* ast_get_switch_name ( struct ast_sw sw  ) 

Definition at line 6505 of file pbx.c.

References ast_sw::name.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06506 {
06507    return sw ? sw->name : NULL;
06508 }

const char* ast_get_switch_registrar ( struct ast_sw sw  ) 

Definition at line 6515 of file pbx.c.

References ast_sw::registrar.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06516 {
06517    return sw ? sw->registrar : NULL;
06518 }

int ast_goto_if_exists ( struct ast_channel chan,
const char *  context,
const char *  exten,
int  priority 
)
void ast_hint_state_changed ( const char *  device  ) 

Definition at line 2047 of file pbx.c.

References ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next(), ao2_lock(), ao2_ref(), ao2_unlock(), ast_dynamic_str_create(), ast_dynamic_str_set(), ast_extension_state2(), ast_free, ast_get_extension_app(), ast_rdlock_contexts(), ast_unlock_contexts(), ast_state_cb::callback, ast_hint::callbacks, ast_state_cb::data, ast_exten::exten, ast_hint::exten, ast_hint::laststate, ast_state_cb::next, ast_exten::parent, parse(), ast_dynamic_str::str, and strsep().

Referenced by do_state_change().

02048 {
02049    struct ast_hint *hint;
02050    struct ast_dynamic_str *str;
02051    struct ao2_iterator i;
02052 
02053    if (!(str = ast_dynamic_str_create(1024))) {
02054       return;
02055    }
02056 
02057    i = ao2_iterator_init(hints, 0);
02058    for (hint = ao2_iterator_next(&i); hint; ao2_ref(hint, -1), hint = ao2_iterator_next(&i)) {
02059       struct ast_state_cb *cblist;
02060       char *cur, *parse;
02061       int state;
02062 
02063       ast_dynamic_str_set(&str, 0, "%s", ast_get_extension_app(hint->exten));
02064       parse = str->str;
02065 
02066       while ( (cur = strsep(&parse, "&")) ) {
02067          if (!strcasecmp(cur, device)) {
02068             break;
02069          }
02070       }
02071 
02072       if (!cur) {
02073          continue;
02074       }
02075 
02076       /* Get device state for this hint */
02077       state = ast_extension_state2(hint->exten);
02078 
02079       if ((state == -1) || (state == hint->laststate)) {
02080          continue;
02081       }
02082 
02083       /* Device state changed since last check - notify the watchers */
02084 
02085       ast_rdlock_contexts();
02086       ao2_lock(hints);
02087       ao2_lock(hint);
02088 
02089       if (hint->exten == NULL) {
02090          /* the extension has been destroyed */
02091          ao2_unlock(hint);
02092          ao2_unlock(hints);
02093          ast_unlock_contexts();
02094          continue;
02095       }
02096 
02097       /* For general callbacks */
02098       for (cblist = statecbs; cblist; cblist = cblist->next) {
02099          cblist->callback(hint->exten->parent->name, hint->exten->exten, state, cblist->data);
02100       }
02101 
02102       /* For extension callbacks */
02103       for (cblist = hint->callbacks; cblist; cblist = cblist->next) {
02104          cblist->callback(hint->exten->parent->name, hint->exten->exten, state, cblist->data);
02105       }
02106 
02107       hint->laststate = state;   /* record we saw the change */
02108       ao2_unlock(hint);
02109       ao2_unlock(hints);
02110       ast_unlock_contexts();
02111    }
02112 
02113    ao2_iterator_destroy(&i);
02114    ast_free(str);
02115 }

int ast_ignore_pattern ( const char *  context,
const char *  pattern 
)

Checks to see if a number should be ignored.

Parameters:
context context to search within
pattern to check whether it should be ignored or not

Check if a number should be ignored with respect to dialtone cancellation.

Return values:
0 if the pattern should not be ignored
non-zero if the pattern should be ignored

Definition at line 4660 of file pbx.c.

References ast_context_find(), ast_extension_match(), ast_context::ignorepats, ast_ignorepat::next, and ast_ignorepat::pattern.

Referenced by ast_app_dtget(), disa_exec(), dp_lookup(), dundi_lookup_local(), handle_enbloc_call_message(), handle_soft_key_event_message(), handle_stimulus_message(), mgcp_ss(), skinny_ss(), and ss_thread().

04661 {
04662    struct ast_context *con = ast_context_find(context);
04663    if (con) {
04664       struct ast_ignorepat *pat;
04665       for (pat = con->ignorepats; pat; pat = pat->next) {
04666          if (ast_extension_match(pat->pattern, pattern))
04667             return 1;
04668       }
04669    }
04670 
04671    return 0;
04672 }

int ast_lock_context ( struct ast_context con  ) 

Locks a given context.

Parameters:
con context to lock
Return values:
0 on success
-1 on failure

Definition at line 6414 of file pbx.c.

References ast_mutex_lock(), and ast_context::lock.

Referenced by _macro_exec(), complete_context_dont_include_deprecated(), complete_context_remove_ignorepat(), complete_context_remove_ignorepat_deprecated(), complete_context_remove_include(), dundi_precache_full(), find_matching_endwhile(), handle_save_dialplan(), lookup_c_ip(), lookup_ci(), and show_dialplan_helper().

06415 {
06416    return ast_mutex_lock(&con->lock);
06417 }

int ast_lock_contexts ( void   ) 

Locks the context list.

Return values:
0 on success
-1 on error

Definition at line 6391 of file pbx.c.

References ast_mutex_lock().

Referenced by find_matching_endwhile().

06392 {
06393    return ast_mutex_lock(&conlock);
06394 }

int ast_matchmore_extension ( struct ast_channel c,
const char *  context,
const char *  exten,
int  priority,
const char *  callerid 
)

Looks to see if adding anything to this extension might match something. (exists ^ canmatch).

Parameters:
c not really important XXX
context context to serach within
exten extension to check
priority priority of extension path
callerid callerid of extension being searched for
Note:
It is possible for autoservice to be started and stopped on c during this function call, it is important that c is not locked prior to calling this. Otherwise a deadlock may occur
Returns:
If "exten" *could match* a valid extension in this context with some more digits, return non-zero. Does NOT return non-zero if this is an exact-match only. Basically, when this returns 0, no matter what you add to exten, it's not going to be a valid extension anymore

Definition at line 2386 of file pbx.c.

References E_MATCHMORE, and pbx_extension_helper().

Referenced by ast_app_dtget(), collect_digits(), dahdi_r2_on_dnis_digit_received(), disa_exec(), dp_lookup(), dundi_lookup_local(), handle_stimulus_message(), loopback_matchmore(), mgcp_ss(), pbx_builtin_background(), pri_dchannel(), skinny_ss(), and ss_thread().

02387 {
02388    return pbx_extension_helper(c, NULL, context, exten, priority, NULL, callerid, E_MATCHMORE);
02389 }

void ast_merge_contexts_and_delete ( struct ast_context **  extcontexts,
const char *  registrar 
)

Merge the temporary contexts into a global contexts list and delete from the global list the ones that are being added.

Parameters:
extcontexts pointer to the ast_context structure pointer
registrar of the context; if it's set the routine will delete all contexts that belong to that registrar; if NULL only the contexts that are specified in extcontexts

Definition at line 4067 of file pbx.c.

References __ast_context_destroy(), ao2_find(), AO2_ITERATOR_DONTLOCK, ao2_iterator_init(), ao2_iterator_next(), ao2_lock(), ao2_ref(), ao2_unlock(), ast_calloc, AST_EXTENSION_REMOVED, AST_LIST_HEAD_INIT_VALUE, AST_LIST_INSERT_HEAD, AST_LIST_REMOVE_HEAD, ast_log(), ast_unlock_contexts(), ast_wrlock_contexts(), ast_state_cb::callback, ast_hint::callbacks, context, ast_state_cb::data, E_MATCH, ast_exten::exten, ast_hint::exten, free, ast_hint::laststate, LOG_DEBUG, LOG_WARNING, ast_state_cb::next, ast_context::next, option_debug, ast_exten::parent, pbx_find_extension(), PRIORITY_HINT, ast_context::registrar, and pbx_find_info::stacklen.

Referenced by pbx_load_module().

04068 {
04069    struct ast_context *tmp, *lasttmp = NULL;
04070    struct store_hints store = AST_LIST_HEAD_INIT_VALUE;
04071    struct store_hint *this;
04072    struct ast_hint *hint;
04073    struct ast_exten *exten;
04074    int length;
04075    struct ast_state_cb *thiscb, *prevcb;
04076    struct ao2_iterator i;
04077 
04078    /* it is very important that this function hold the hint list lock _and_ the conlock
04079       during its operation; not only do we need to ensure that the list of contexts
04080       and extensions does not change, but also that no hint callbacks (watchers) are
04081       added or removed during the merge/delete process
04082 
04083       in addition, the locks _must_ be taken in this order, because there are already
04084       other code paths that use this order
04085    */
04086    ast_wrlock_contexts();
04087    ao2_lock(hints);
04088 
04089    /* preserve all watchers for hints associated with this registrar */
04090    i = ao2_iterator_init(hints, AO2_ITERATOR_DONTLOCK);
04091    for (hint = ao2_iterator_next(&i); hint; ao2_ref(hint, -1), hint = ao2_iterator_next(&i)) {
04092       if (hint->callbacks && !strcmp(registrar, hint->exten->parent->registrar)) {
04093          length = strlen(hint->exten->exten) + strlen(hint->exten->parent->name) + 2 + sizeof(*this);
04094          if (!(this = ast_calloc(1, length))) {
04095             continue;
04096          }
04097          ao2_lock(hint);
04098 
04099          if (hint->exten == NULL) {
04100             ao2_unlock(hint);
04101             continue;
04102          }
04103 
04104          this->callbacks = hint->callbacks;
04105          hint->callbacks = NULL;
04106          this->laststate = hint->laststate;
04107          ao2_unlock(hint);
04108          this->context = this->data;
04109          strcpy(this->data, hint->exten->parent->name);
04110          this->exten = this->data + strlen(this->context) + 1;
04111          strcpy(this->exten, hint->exten->exten);
04112          AST_LIST_INSERT_HEAD(&store, this, list);
04113       }
04114    }
04115 
04116    tmp = *extcontexts;
04117    if (registrar) {
04118       /* XXX remove previous contexts from same registrar */
04119       if (option_debug)
04120          ast_log(LOG_DEBUG, "must remove any reg %s\n", registrar);
04121       __ast_context_destroy(NULL,registrar);
04122       while (tmp) {
04123          lasttmp = tmp;
04124          tmp = tmp->next;
04125       }
04126    } else {
04127       /* XXX remove contexts with the same name */
04128       while (tmp) {
04129          ast_log(LOG_WARNING, "must remove %s  reg %s\n", tmp->name, tmp->registrar);
04130          __ast_context_destroy(tmp,tmp->registrar);
04131          lasttmp = tmp;
04132          tmp = tmp->next;
04133       }
04134    }
04135    if (lasttmp) {
04136       lasttmp->next = contexts;
04137       contexts = *extcontexts;
04138       *extcontexts = NULL;
04139    } else
04140       ast_log(LOG_WARNING, "Requested contexts didn't get merged\n");
04141 
04142    /* restore the watchers for hints that can be found; notify those that
04143       cannot be restored
04144    */
04145    while ((this = AST_LIST_REMOVE_HEAD(&store, list))) {
04146       struct pbx_find_info q = { .stacklen = 0 };
04147       exten = pbx_find_extension(NULL, NULL, &q, this->context, this->exten, PRIORITY_HINT, NULL, "", E_MATCH);
04148       hint = ao2_find(hints, exten, 0);
04149       if (!exten || !hint) {
04150          /* this hint has been removed, notify the watchers */
04151          prevcb = NULL;
04152          thiscb = this->callbacks;
04153          while (thiscb) {
04154             prevcb = thiscb;
04155             thiscb = thiscb->next;
04156             prevcb->callback(this->context, this->exten, AST_EXTENSION_REMOVED, prevcb->data);
04157             free(prevcb);
04158             }
04159       } else {
04160          thiscb = this->callbacks;
04161          while (thiscb->next) {
04162             thiscb = thiscb->next;
04163          }
04164          ao2_lock(hint);
04165          thiscb->next = hint->callbacks;
04166          hint->callbacks = this->callbacks;
04167          hint->laststate = this->laststate;
04168          ao2_unlock(hint);
04169       }
04170       if (hint) {
04171          ao2_ref(hint, -1);
04172       }
04173       free(this);
04174    }
04175 
04176    ao2_unlock(hints);
04177    ast_unlock_contexts();
04178 
04179    return;
04180 }

int ast_parseable_goto ( struct ast_channel chan,
const char *  goto_string 
)
Note:
I can find neither parsable nor parseable at dictionary.com, but google gives me 169000 hits for parseable and only 49,800 for parsable
This function will handle locking the channel as needed.

Definition at line 6618 of file pbx.c.

References ast_explicit_goto(), ast_findlabel_extension(), ast_log(), ast_strdupa, ast_strlen_zero(), ast_channel::cid, ast_callerid::cid_num, ast_channel::context, ast_channel::exten, LOG_WARNING, ast_channel::priority, and strsep().

Referenced by _while_exec(), check_goto_on_transfer(), gosub_exec(), ivr_dispatch(), pbx_builtin_goto(), random_exec(), return_exec(), and while_continue_exec().

06619 {
06620    char *exten, *pri, *context;
06621    char *stringp;
06622    int ipri;
06623    int mode = 0;
06624 
06625    if (ast_strlen_zero(goto_string)) {
06626       ast_log(LOG_WARNING, "Goto requires an argument (optional context|optional extension|priority)\n");
06627       return -1;
06628    }
06629    stringp = ast_strdupa(goto_string);
06630    context = strsep(&stringp, "|"); /* guaranteed non-null */
06631    exten = strsep(&stringp, "|");
06632    pri = strsep(&stringp, "|");
06633    if (!exten) {  /* Only a priority in this one */
06634       pri = context;
06635       exten = NULL;
06636       context = NULL;
06637    } else if (!pri) {   /* Only an extension and priority in this one */
06638       pri = exten;
06639       exten = context;
06640       context = NULL;
06641    }
06642    if (*pri == '+') {
06643       mode = 1;
06644       pri++;
06645    } else if (*pri == '-') {
06646       mode = -1;
06647       pri++;
06648    }
06649    if (sscanf(pri, "%30d", &ipri) != 1) {
06650       if ((ipri = ast_findlabel_extension(chan, context ? context : chan->context, exten ? exten : chan->exten,
06651          pri, chan->cid.cid_num)) < 1) {
06652          ast_log(LOG_WARNING, "Priority '%s' must be a number > 0, or valid label\n", pri);
06653          return -1;
06654       } else
06655          mode = 0;
06656    }
06657    /* At this point we have a priority and maybe an extension and a context */
06658 
06659    if (mode)
06660       ipri = chan->priority + (ipri * mode);
06661 
06662    ast_explicit_goto(chan, context, exten, ipri);
06663    return 0;
06664 
06665 }

int ast_pbx_outgoing_app ( const char *  type,
int  format,
void *  data,
int  timeout,
const char *  app,
const char *  appdata,
int *  reason,
int  sync,
const char *  cid_num,
const char *  cid_name,
struct ast_variable vars,
const char *  account,
struct ast_channel **  locked_channel 
)

Synchronously or asynchronously make an outbound call and send it to a particular application with given extension

Definition at line 5287 of file pbx.c.

References __ast_request_and_dial(), ast_channel::_state, outgoing_helper::account, async_stat::app, app_tmp::app, async_stat::appdata, ast_calloc, ast_cdr_disposition(), ast_cdr_failed(), ast_cdr_setaccount(), ast_channel_lock, ast_channel_unlock, ast_copy_string(), ast_hangup(), ast_log(), ast_pbx_outgoing_cdr_failed(), ast_pbx_run_app(), ast_pthread_create, ast_set_variables(), AST_STATE_UP, ast_strlen_zero(), ast_variables_destroy(), ast_verbose(), async_wait(), ast_channel::cdr, async_stat::chan, app_tmp::chan, app_tmp::data, errno, free, ast_channel::hangupcause, LOG_WARNING, option_verbose, async_stat::p, app_tmp::t, async_stat::timeout, outgoing_helper::vars, and VERBOSE_PREFIX_4.

Referenced by action_originate(), attempt_thread(), fast_originate(), and orig_app().

05288 {
05289    struct ast_channel *chan;
05290    struct app_tmp *tmp;
05291    int res = -1, cdr_res = -1;
05292    struct outgoing_helper oh;
05293    pthread_attr_t attr;
05294 
05295    memset(&oh, 0, sizeof(oh));
05296    oh.vars = vars;
05297    oh.account = account;
05298 
05299    if (locked_channel)
05300       *locked_channel = NULL;
05301    if (ast_strlen_zero(app)) {
05302       res = -1;
05303       goto outgoing_app_cleanup;
05304    }
05305    if (sync) {
05306       chan = __ast_request_and_dial(type, format, data, timeout, reason, cid_num, cid_name, &oh);
05307       if (chan) {
05308          ast_set_variables(chan, vars);
05309          if (account)
05310             ast_cdr_setaccount(chan, account);
05311          if (chan->_state == AST_STATE_UP) {
05312             res = 0;
05313             if (option_verbose > 3)
05314                ast_verbose(VERBOSE_PREFIX_4 "Channel %s was answered.\n", chan->name);
05315             tmp = ast_calloc(1, sizeof(*tmp));
05316             if (!tmp)
05317                res = -1;
05318             else {
05319                ast_copy_string(tmp->app, app, sizeof(tmp->app));
05320                if (appdata)
05321                   ast_copy_string(tmp->data, appdata, sizeof(tmp->data));
05322                tmp->chan = chan;
05323                if (sync > 1) {
05324                   if (locked_channel)
05325                      ast_channel_unlock(chan);
05326                   ast_pbx_run_app(tmp);
05327                } else {
05328                   pthread_attr_init(&attr);
05329                   pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
05330                   if (locked_channel)
05331                      ast_channel_lock(chan);
05332                   if (ast_pthread_create(&tmp->t, &attr, ast_pbx_run_app, tmp)) {
05333                      ast_log(LOG_WARNING, "Unable to spawn execute thread on %s: %s\n", chan->name, strerror(errno));
05334                      free(tmp);
05335                      if (locked_channel)
05336                         ast_channel_unlock(chan);
05337                      ast_hangup(chan);
05338                      res = -1;
05339                   } else {
05340                      if (locked_channel)
05341                         *locked_channel = chan;
05342                   }
05343                   pthread_attr_destroy(&attr);
05344                }
05345             }
05346          } else {
05347             if (option_verbose > 3)
05348                ast_verbose(VERBOSE_PREFIX_4 "Channel %s was never answered.\n", chan->name);
05349             if (chan->cdr) { /* update the cdr */
05350                /* here we update the status of the call, which sould be busy.
05351                 * if that fails then we set the status to failed */
05352                if (ast_cdr_disposition(chan->cdr, chan->hangupcause))
05353                   ast_cdr_failed(chan->cdr);
05354             }
05355             ast_hangup(chan);
05356          }
05357       }
05358 
05359       if (res < 0) { /* the call failed for some reason */
05360          if (*reason == 0) { /* if the call failed (not busy or no answer)
05361                         * update the cdr with the failed message */
05362             cdr_res = ast_pbx_outgoing_cdr_failed();
05363             if (cdr_res != 0) {
05364                res = cdr_res;
05365                goto outgoing_app_cleanup;
05366             }
05367          }
05368       }
05369 
05370    } else {
05371       struct async_stat *as;
05372       if (!(as = ast_calloc(1, sizeof(*as)))) {
05373          res = -1;
05374          goto outgoing_app_cleanup;
05375       }
05376       chan = __ast_request_and_dial(type, format, data, timeout, reason, cid_num, cid_name, &oh);
05377       if (!chan) {
05378          free(as);
05379          res = -1;
05380          goto outgoing_app_cleanup;
05381       }
05382       as->chan = chan;
05383       ast_copy_string(as->app, app, sizeof(as->app));
05384       if (appdata)
05385          ast_copy_string(as->appdata,  appdata, sizeof(as->appdata));
05386       as->timeout = timeout;
05387       ast_set_variables(chan, vars);
05388       if (account)
05389          ast_cdr_setaccount(chan, account);
05390       /* Start a new thread, and get something handling this channel. */
05391       pthread_attr_init(&attr);
05392       pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
05393       if (locked_channel)
05394          ast_channel_lock(chan);
05395       if (ast_pthread_create(&as->p, &attr, async_wait, as)) {
05396          ast_log(LOG_WARNING, "Failed to start async wait\n");
05397          free(as);
05398          if (locked_channel)
05399             ast_channel_unlock(chan);
05400          ast_hangup(chan);
05401          res = -1;
05402          pthread_attr_destroy(&attr);
05403          goto outgoing_app_cleanup;
05404       } else {
05405          if (locked_channel)
05406             *locked_channel = chan;
05407       }
05408       pthread_attr_destroy(&attr);
05409       res = 0;
05410    }
05411 outgoing_app_cleanup:
05412    ast_variables_destroy(vars);
05413    return res;
05414 }

int ast_pbx_outgoing_exten ( const char *  type,
int  format,
void *  data,
int  timeout,
const char *  context,
const char *  exten,
int  priority,
int *  reason,
int  sync,
const char *  cid_num,
const char *  cid_name,
struct ast_variable vars,
const char *  account,
struct ast_channel **  locked_channel 
)

Synchronously or asynchronously make an outbound call and send it to a particular extension

Definition at line 5121 of file pbx.c.

References __ast_request_and_dial(), ast_channel::_state, ast_calloc, ast_cdr_disposition(), ast_cdr_failed(), ast_cdr_setaccount(), ast_channel_alloc(), ast_channel_lock, ast_channel_unlock, ast_copy_string(), ast_exists_extension(), ast_hangup(), ast_log(), ast_pbx_outgoing_cdr_failed(), ast_pbx_run(), ast_pbx_start(), ast_pthread_create, ast_request_and_dial(), ast_set_variables(), AST_STATE_DOWN, AST_STATE_UP, ast_strlen_zero(), ast_variables_destroy(), ast_verbose(), async_wait(), ast_channel::cdr, async_stat::chan, async_stat::context, ast_channel::context, free, ast_channel::hangupcause, LOAD_OH, LOG_ERROR, LOG_WARNING, option_verbose, async_stat::p, pbx_builtin_setvar_helper(), set_ext_pri(), async_stat::timeout, and VERBOSE_PREFIX_4.

Referenced by action_originate(), attempt_thread(), fast_originate(), and orig_exten().

05122 {
05123    struct ast_channel *chan;
05124    struct async_stat *as;
05125    int res = -1, cdr_res = -1;
05126    struct outgoing_helper oh;
05127    pthread_attr_t attr;
05128 
05129    if (sync) {
05130       LOAD_OH(oh);
05131       chan = __ast_request_and_dial(type, format, data, timeout, reason, cid_num, cid_name, &oh);
05132       if (channel) {
05133          *channel = chan;
05134          if (chan)
05135             ast_channel_lock(chan);
05136       }
05137       if (chan) {
05138          if (chan->_state == AST_STATE_UP) {
05139                res = 0;
05140             if (option_verbose > 3)
05141                ast_verbose(VERBOSE_PREFIX_4 "Channel %s was answered.\n", chan->name);
05142 
05143             if (sync > 1) {
05144                if (channel)
05145                   ast_channel_unlock(chan);
05146                if (ast_pbx_run(chan)) {
05147                   ast_log(LOG_ERROR, "Unable to run PBX on %s\n", chan->name);
05148                   if (channel)
05149                      *channel = NULL;
05150                   ast_hangup(chan);
05151                   chan = NULL;
05152                   res = -1;
05153                }
05154             } else {
05155                if (ast_pbx_start(chan)) {
05156                   ast_log(LOG_ERROR, "Unable to start PBX on %s\n", chan->name);
05157                   if (channel) {
05158                      *channel = NULL;
05159                      ast_channel_unlock(chan);
05160                   }
05161                   ast_hangup(chan);
05162                   res = -1;
05163                }
05164                chan = NULL;
05165             }
05166          } else {
05167             if (option_verbose > 3)
05168                ast_verbose(VERBOSE_PREFIX_4 "Channel %s was never answered.\n", chan->name);
05169 
05170             if (chan->cdr) { /* update the cdr */
05171                /* here we update the status of the call, which sould be busy.
05172                 * if that fails then we set the status to failed */
05173                if (ast_cdr_disposition(chan->cdr, chan->hangupcause))
05174                   ast_cdr_failed(chan->cdr);
05175             }
05176 
05177             if (channel) {
05178                *channel = NULL;
05179                ast_channel_unlock(chan);
05180             }
05181             ast_hangup(chan);
05182             chan = NULL;
05183          }
05184       }
05185 
05186       if (res < 0) { /* the call failed for some reason */
05187          if (*reason == 0) { /* if the call failed (not busy or no answer)
05188                         * update the cdr with the failed message */
05189             cdr_res = ast_pbx_outgoing_cdr_failed();
05190             if (cdr_res != 0) {
05191                res = cdr_res;
05192                goto outgoing_exten_cleanup;
05193             }
05194          }
05195 
05196          /* create a fake channel and execute the "failed" extension (if it exists) within the requested context */
05197          /* check if "failed" exists */
05198          if (ast_exists_extension(chan, context, "failed", 1, NULL)) {
05199             chan = ast_channel_alloc(0, AST_STATE_DOWN, 0, 0, "", "", "", 0, "OutgoingSpoolFailed");
05200             if (chan) {
05201                char failed_reason[4] = "";
05202                if (!ast_strlen_zero(context))
05203                   ast_copy_string(chan->context, context, sizeof(chan->context));
05204                set_ext_pri(chan, "failed", 1);
05205                ast_set_variables(chan, vars);
05206                snprintf(failed_reason, sizeof(failed_reason), "%d", *reason);
05207                pbx_builtin_setvar_helper(chan, "REASON", failed_reason);
05208                if (account)
05209                   ast_cdr_setaccount(chan, account);
05210                if (ast_pbx_run(chan)) {
05211                   ast_log(LOG_ERROR, "Unable to run PBX on %s\n", chan->name);
05212                   ast_hangup(chan);
05213                }
05214                chan = NULL;
05215             }
05216          }
05217       }
05218    } else {
05219       if (!(as = ast_calloc(1, sizeof(*as)))) {
05220          res = -1;
05221          goto outgoing_exten_cleanup;
05222       }
05223       chan = ast_request_and_dial(type, format, data, timeout, reason, cid_num, cid_name);
05224       if (channel) {
05225          *channel = chan;
05226          if (chan)
05227             ast_channel_lock(chan);
05228       }
05229       if (!chan) {
05230          free(as);
05231          res = -1;
05232          goto outgoing_exten_cleanup;
05233       }
05234       as->chan = chan;
05235       ast_copy_string(as->context, context, sizeof(as->context));
05236       set_ext_pri(as->chan,  exten, priority);
05237       as->timeout = timeout;
05238       ast_set_variables(chan, vars);
05239       if (account)
05240          ast_cdr_setaccount(chan, account);
05241       pthread_attr_init(&attr);
05242       pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
05243       if (ast_pthread_create(&as->p, &attr, async_wait, as)) {
05244          ast_log(LOG_WARNING, "Failed to start async wait\n");
05245          free(as);
05246          if (channel) {
05247             *channel = NULL;
05248             ast_channel_unlock(chan);
05249          }
05250          ast_hangup(chan);
05251          res = -1;
05252          pthread_attr_destroy(&attr);
05253          goto outgoing_exten_cleanup;
05254       }
05255       pthread_attr_destroy(&attr);
05256       res = 0;
05257    }
05258 outgoing_exten_cleanup:
05259    ast_variables_destroy(vars);
05260    return res;
05261 }

enum ast_pbx_result ast_pbx_run ( struct ast_channel c  ) 

Execute the PBX in the current thread.

Parameters:
c channel to run the pbx on

This executes the PBX on a given channel. It allocates a new PBX structure for the channel, and provides all PBX functionality. See ast_pbx_start for an asynchronous function to run the PBX in a new thread as opposed to the current one.

Returns:
Zero on success, non-zero on failure

Definition at line 2751 of file pbx.c.

References __ast_pbx_run(), AST_PBX_CALL_LIMIT, AST_PBX_SUCCESS, decrease_call_count(), and increase_call_count().

Referenced by ast_pbx_outgoing_exten(), async_wait(), do_idle_thread(), mgcp_ss(), skinny_newcall(), and ss_thread().

02752 {
02753    enum ast_pbx_result res = AST_PBX_SUCCESS;
02754 
02755    if (increase_call_count(c))
02756       return AST_PBX_CALL_LIMIT;
02757 
02758    res = __ast_pbx_run(c);
02759    decrease_call_count();
02760 
02761    return res;
02762 }

enum ast_pbx_result ast_pbx_start ( struct ast_channel c  ) 

Create a new thread and start the PBX.

Parameters:
c channel to start the pbx on

See ast_pbx_run for a synchronous function to run the PBX in the current thread, as opposed to starting a new one.

Returns:
Zero on success, non-zero on failure

Definition at line 2724 of file pbx.c.

References ast_log(), AST_PBX_CALL_LIMIT, AST_PBX_FAILED, AST_PBX_SUCCESS, ast_pthread_create, decrease_call_count(), increase_call_count(), LOG_WARNING, pbx_thread(), and t.

Referenced by __oh323_new(), alsa_new(), ast_async_goto(), ast_iax2_new(), ast_pbx_outgoing_exten(), check_goto_on_transfer(), dahdi_new(), do_parking_thread(), gtalk_new(), gtalk_newcall(), handle_request_invite(), local_call(), mgcp_new(), nbs_new(), oss_new(), pbx_start_chan(), phone_new(), pri_dchannel(), rpt_call(), sip_new(), and skinny_new().

02725 {
02726    pthread_t t;
02727    pthread_attr_t attr;
02728 
02729    if (!c) {
02730       ast_log(LOG_WARNING, "Asked to start thread on NULL channel?\n");
02731       return AST_PBX_FAILED;
02732    }
02733 
02734    if (increase_call_count(c))
02735       return AST_PBX_CALL_LIMIT;
02736 
02737    /* Start a new thread, and get something handling this channel. */
02738    pthread_attr_init(&attr);
02739    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
02740    if (ast_pthread_create(&t, &attr, pbx_thread, c)) {
02741       ast_log(LOG_WARNING, "Failed to create new channel thread\n");
02742       pthread_attr_destroy(&attr);
02743       decrease_call_count();
02744       return AST_PBX_FAILED;
02745    }
02746    pthread_attr_destroy(&attr);
02747 
02748    return AST_PBX_SUCCESS;
02749 }

int ast_processed_calls ( void   ) 

Retrieve the total number of calls processed through the PBX since last restart.

Definition at line 2769 of file pbx.c.

02770 {
02771    return totalcalls;
02772 }

int ast_rdlock_contexts ( void   ) 
int ast_register_application ( const char *  app,
int(*)(struct ast_channel *, void *)  execute,
const char *  synopsis,
const char *  description 
)

Register an application.

Parameters:
app Short name of the application
execute a function callback to execute the application. It should return non-zero if the channel needs to be hung up.
synopsis a short description (one line synopsis) of the application
description long description with all of the details about the use of the application

This registers an application with Asterisk's internal application list.

Note:
The individual applications themselves are responsible for registering and unregistering and unregistering their own CLI commands.
Return values:
0 success
-1 failure.

Definition at line 3058 of file pbx.c.

References ast_calloc, AST_LIST_INSERT_BEFORE_CURRENT, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, ast_log(), ast_verbose(), COLOR_BRCYAN, ast_app::description, ast_app::execute, LOG_WARNING, option_verbose, ast_app::synopsis, term_color(), and VERBOSE_PREFIX_2.

Referenced by load_module(), and load_pbx().

03059 {
03060    struct ast_app *tmp, *cur = NULL;
03061    char tmps[80];
03062    int length;
03063 
03064    AST_LIST_LOCK(&apps);
03065    AST_LIST_TRAVERSE(&apps, tmp, list) {
03066       if (!strcasecmp(app, tmp->name)) {
03067          ast_log(LOG_WARNING, "Already have an application '%s'\n", app);
03068          AST_LIST_UNLOCK(&apps);
03069          return -1;
03070       }
03071    }
03072 
03073    length = sizeof(*tmp) + strlen(app) + 1;
03074 
03075    if (!(tmp = ast_calloc(1, length))) {
03076       AST_LIST_UNLOCK(&apps);
03077       return -1;
03078    }
03079 
03080    strcpy(tmp->name, app);
03081    tmp->execute = execute;
03082    tmp->synopsis = synopsis;
03083    tmp->description = description;
03084 
03085    /* Store in alphabetical order */
03086    AST_LIST_TRAVERSE_SAFE_BEGIN(&apps, cur, list) {
03087       if (strcasecmp(tmp->name, cur->name) < 0) {
03088          AST_LIST_INSERT_BEFORE_CURRENT(&apps, tmp, list);
03089          break;
03090       }
03091    }
03092    AST_LIST_TRAVERSE_SAFE_END
03093    if (!cur)
03094       AST_LIST_INSERT_TAIL(&apps, tmp, list);
03095 
03096    if (option_verbose > 1)
03097       ast_verbose( VERBOSE_PREFIX_2 "Registered application '%s'\n", term_color(tmps, tmp->name, COLOR_BRCYAN, 0, sizeof(tmps)));
03098 
03099    AST_LIST_UNLOCK(&apps);
03100 
03101    return 0;
03102 }

int ast_register_switch ( struct ast_switch sw  ) 

Register an alternative dialplan switch.

Parameters:
sw switch to register

This function registers a populated ast_switch structure with the asterisk switching architecture.

Returns:
0 on success, and other than 0 on failure

Definition at line 3108 of file pbx.c.

References AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log(), ast_switch::list, LOG_WARNING, and ast_switch::name.

Referenced by load_module().

03109 {
03110    struct ast_switch *tmp;
03111 
03112    AST_LIST_LOCK(&switches);
03113    AST_LIST_TRAVERSE(&switches, tmp, list) {
03114       if (!strcasecmp(tmp->name, sw->name)) {
03115          AST_LIST_UNLOCK(&switches);
03116          ast_log(LOG_WARNING, "Switch '%s' already found\n", sw->name);
03117          return -1;
03118       }
03119    }
03120    AST_LIST_INSERT_TAIL(&switches, sw, list);
03121    AST_LIST_UNLOCK(&switches);
03122 
03123    return 0;
03124 }

int ast_spawn_extension ( struct ast_channel c,
const char *  context,
const char *  exten,
int  priority,
const char *  callerid 
)

Launch a new extension (i.e. new stack).

Parameters:
c not important
context which context to generate the extension within
exten new extension to add
priority priority of new extension
callerid callerid of extension

This adds a new extension to the asterisk extension list.

Note:
It is possible for autoservice to be started and stopped on c during this function call, it is important that c is not locked prior to calling this. Otherwise a deadlock may occur
Return values:
0 on success
-1 on failure.

Definition at line 2391 of file pbx.c.

References E_SPAWN, and pbx_extension_helper().

Referenced by __ast_pbx_run(), _macro_exec(), ast_bridge_call(), and loopback_exec().

02392 {
02393    return pbx_extension_helper(c, NULL, context, exten, priority, NULL, callerid, E_SPAWN);
02394 }

int ast_unlock_context ( struct ast_context con  ) 
Return values:
Unlocks the given context
Parameters:
con context to unlock
Return values:
0 on success
-1 on failure

Definition at line 6419 of file pbx.c.

References ast_mutex_unlock(), and ast_context::lock.

Referenced by _macro_exec(), complete_context_dont_include_deprecated(), complete_context_remove_ignorepat(), complete_context_remove_ignorepat_deprecated(), complete_context_remove_include(), dundi_precache_full(), find_matching_endwhile(), handle_save_dialplan(), lookup_c_ip(), lookup_ci(), and show_dialplan_helper().

06420 {
06421    return ast_mutex_unlock(&con->lock);
06422 }

int ast_unlock_contexts ( void   ) 
int ast_unregister_application ( const char *  app  ) 

Unregister an application.

Parameters:
app name of the application (does not have to be the same string as the one that was registered)

This unregisters an application from Asterisk's internal application list.

Return values:
0 success
-1 failure

Definition at line 3978 of file pbx.c.

References AST_LIST_LOCK, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, ast_verbose(), free, option_verbose, and VERBOSE_PREFIX_2.

Referenced by __unload_module(), and unload_module().

03979 {
03980    struct ast_app *tmp;
03981 
03982    AST_LIST_LOCK(&apps);
03983    AST_LIST_TRAVERSE_SAFE_BEGIN(&apps, tmp, list) {
03984       if (!strcasecmp(app, tmp->name)) {
03985          AST_LIST_REMOVE_CURRENT(&apps, list);
03986          if (option_verbose > 1)
03987             ast_verbose( VERBOSE_PREFIX_2 "Unregistered application '%s'\n", tmp->name);
03988          free(tmp);
03989          break;
03990       }
03991    }
03992    AST_LIST_TRAVERSE_SAFE_END
03993    AST_LIST_UNLOCK(&apps);
03994 
03995    return tmp ? 0 : -1;
03996 }

void ast_unregister_switch ( struct ast_switch sw  ) 

Unregister an alternative switch.

Parameters:
sw switch to unregister

Unregisters a switch from asterisk.

Returns:
nothing

Definition at line 3126 of file pbx.c.

References AST_LIST_LOCK, AST_LIST_REMOVE, AST_LIST_UNLOCK, and ast_switch::list.

Referenced by __unload_module(), and unload_module().

03127 {
03128    AST_LIST_LOCK(&switches);
03129    AST_LIST_REMOVE(&switches, sw, list);
03130    AST_LIST_UNLOCK(&switches);
03131 }

struct ast_exten* ast_walk_context_extensions ( struct ast_context con,
struct ast_exten priority 
) [read]

Definition at line 6528 of file pbx.c.

References ast_exten::next, and ast_context::root.

Referenced by complete_context_remove_extension(), complete_context_remove_extension_deprecated(), dundi_precache_full(), find_matching_priority(), handle_save_dialplan(), pbx_find_extension(), and show_dialplan_helper().

06530 {
06531    if (!exten)
06532       return con ? con->root : NULL;
06533    else
06534       return exten->next;
06535 }

struct ast_ignorepat* ast_walk_context_ignorepats ( struct ast_context con,
struct ast_ignorepat ip 
) [read]

Definition at line 6561 of file pbx.c.

References ast_context::ignorepats, and ast_ignorepat::next.

Referenced by complete_context_remove_ignorepat(), complete_context_remove_ignorepat_deprecated(), handle_save_dialplan(), lookup_c_ip(), and show_dialplan_helper().

06563 {
06564    if (!ip)
06565       return con ? con->ignorepats : NULL;
06566    else
06567       return ip->next;
06568 }

struct ast_include* ast_walk_context_includes ( struct ast_context con,
struct ast_include inc 
) [read]

Definition at line 6552 of file pbx.c.

References ast_context::includes, and ast_include::next.

Referenced by ast_context_verify_includes(), complete_context_dont_include_deprecated(), complete_context_remove_include(), find_matching_priority(), handle_save_dialplan(), lookup_ci(), and show_dialplan_helper().

06554 {
06555    if (!inc)
06556       return con ? con->includes : NULL;
06557    else
06558       return inc->next;
06559 }

struct ast_sw* ast_walk_context_switches ( struct ast_context con,
struct ast_sw sw 
) [read]

Definition at line 6537 of file pbx.c.

References AST_LIST_FIRST, and AST_LIST_NEXT.

Referenced by handle_save_dialplan(), and show_dialplan_helper().

06539 {
06540    if (!sw)
06541       return con ? AST_LIST_FIRST(&con->alts) : NULL;
06542    else
06543       return AST_LIST_NEXT(sw, list);
06544 }

struct ast_context* ast_walk_contexts ( struct ast_context con  )  [read]
struct ast_exten* ast_walk_extension_priorities ( struct ast_exten exten,
struct ast_exten priority 
) [read]

Definition at line 6546 of file pbx.c.

References ast_exten::peer.

Referenced by complete_context_remove_extension(), complete_context_remove_extension_deprecated(), find_matching_priority(), handle_save_dialplan(), pbx_find_extension(), and show_dialplan_helper().

06548 {
06549    return priority ? priority->peer : exten;
06550 }

int ast_wrlock_contexts ( void   ) 

Definition at line 6401 of file pbx.c.

References ast_mutex_lock().

Referenced by __ast_context_create(), ast_context_destroy(), ast_merge_contexts_and_delete(), and complete_context_dont_include_deprecated().

06402 {
06403    return ast_mutex_lock(&conlock);
06404 }

void pbx_builtin_clear_globals ( void   ) 

Definition at line 6167 of file pbx.c.

References AST_LIST_REMOVE_HEAD, ast_mutex_lock(), ast_mutex_unlock(), and ast_var_delete().

Referenced by handle_reload_extensions(), and reload().

06168 {
06169    struct ast_var_t *vardata;
06170 
06171    ast_mutex_lock(&globalslock);
06172    while ((vardata = AST_LIST_REMOVE_HEAD(&globals, entries)))
06173       ast_var_delete(vardata);
06174    ast_mutex_unlock(&globalslock);
06175 }

const char* pbx_builtin_getvar_helper ( struct ast_channel chan,
const char *  name 
)
Note:
Will lock the channel.

Definition at line 5943 of file pbx.c.

References ast_channel_lock, ast_channel_unlock, AST_LIST_TRAVERSE, ast_mutex_lock(), ast_mutex_unlock(), ast_var_name(), ast_var_value(), and ast_channel::varshead.

Referenced by __ast_pbx_run(), __login_exec(), _macro_exec(), _while_exec(), agent_hangup(), agent_read(), agentmonitoroutgoing_exec(), ast_bridge_call(), ast_call_forward(), ast_monitor_stop(), builtin_automonitor(), check_goto_on_transfer(), common_exec(), conf_exec(), conf_run(), dahdi_call(), dahdi_hangup(), dahdi_r2_answer(), dahdi_r2_get_channel_category(), dundi_exec(), dundi_helper(), feature_check(), feature_interpret(), get_also_info(), get_index(), get_refer_info(), global_read(), iax2_exec(), import_ch(), leave_voicemail(), local_hangup(), macro_fixup(), misdn_answer(), misdn_hangup(), morsecode_exec(), notify_new_message(), oh323_call(), oh323_hangup(), park_call_full(), park_space_reserve(), pbx_builtin_background(), pickup_by_mark(), queue_exec(), real_ctx(), retrydial_exec(), return_exec(), ring_entry(), run_agi(), set_config_flags(), sip_addheader(), sla_trunk_exec(), speech_background(), try_calling(), try_suggested_sip_codec(), update_bridgepeer(), and wait_for_answer().

05944 {
05945    struct ast_var_t *variables;
05946    const char *ret = NULL;
05947    int i;
05948    struct varshead *places[2] = { NULL, &globals };
05949 
05950    if (!name)
05951       return NULL;
05952 
05953    if (chan) {
05954       ast_channel_lock(chan);
05955       places[0] = &chan->varshead;
05956    }
05957 
05958    for (i = 0; i < 2; i++) {
05959       if (!places[i])
05960          continue;
05961       if (places[i] == &globals)
05962          ast_mutex_lock(&globalslock);
05963       AST_LIST_TRAVERSE(places[i], variables, entries) {
05964          if (!strcmp(name, ast_var_name(variables))) {
05965             ret = ast_var_value(variables);
05966             break;
05967          }
05968       }
05969       if (places[i] == &globals)
05970          ast_mutex_unlock(&globalslock);
05971       if (ret)
05972          break;
05973    }
05974 
05975    if (chan)
05976       ast_channel_unlock(chan);
05977 
05978    return ret;
05979 }

void pbx_builtin_pushvar_helper ( struct ast_channel chan,
const char *  name,
const char *  value 
)
Note:
Will lock the channel.

Definition at line 5981 of file pbx.c.

References ast_channel_lock, ast_channel_unlock, ast_func_write(), AST_LIST_INSERT_HEAD, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_strdupa, ast_var_assign(), ast_verbose(), LOG_WARNING, option_verbose, ast_channel::varshead, and VERBOSE_PREFIX_2.

Referenced by acf_odbc_read(), acf_odbc_write(), and gosub_exec().

05982 {
05983    struct ast_var_t *newvariable;
05984    struct varshead *headp;
05985 
05986    if (name[strlen(name)-1] == ')') {
05987       char *function = ast_strdupa(name);
05988 
05989       ast_log(LOG_WARNING, "Cannot push a value onto a function\n");
05990       ast_func_write(chan, function, value);
05991       return;
05992    }
05993 
05994    if (chan) {
05995       ast_channel_lock(chan);
05996       headp = &chan->varshead;
05997    } else {
05998       ast_mutex_lock(&globalslock);
05999       headp = &globals;
06000    }
06001 
06002    if (value) {
06003       if ((option_verbose > 1) && (headp == &globals))
06004          ast_verbose(VERBOSE_PREFIX_2 "Setting global variable '%s' to '%s'\n", name, value);
06005       newvariable = ast_var_assign(name, value);
06006       AST_LIST_INSERT_HEAD(headp, newvariable, entries);
06007    }
06008 
06009    if (chan)
06010       ast_channel_unlock(chan);
06011    else
06012       ast_mutex_unlock(&globalslock);
06013 }

int pbx_builtin_serialize_variables ( struct ast_channel chan,
char *  buf,
size_t  size 
)
Note:
Will lock the channel.

Definition at line 5912 of file pbx.c.

References ast_build_string(), ast_channel_lock, ast_channel_unlock, AST_LIST_TRAVERSE, ast_log(), ast_var_name(), ast_var_value(), LOG_ERROR, total, var, and ast_channel::varshead.

Referenced by dumpchan_exec(), handle_showchan(), handle_showchan_deprecated(), and vars2manager().

05913 {
05914    struct ast_var_t *variables;
05915    const char *var, *val;
05916    int total = 0;
05917 
05918    if (!chan)
05919       return 0;
05920 
05921    memset(buf, 0, size);
05922 
05923    ast_channel_lock(chan);
05924 
05925    AST_LIST_TRAVERSE(&chan->varshead, variables, entries) {
05926       if ((var=ast_var_name(variables)) && (val=ast_var_value(variables))
05927          /* && !ast_strlen_zero(var) && !ast_strlen_zero(val) */
05928          ) {
05929          if (ast_build_string(&buf, &size, "%s=%s\n", var, val)) {
05930             ast_log(LOG_ERROR, "Data Buffer Size Exceeded!\n");
05931             break;
05932          } else
05933             total++;
05934       } else
05935          break;
05936    }
05937 
05938    ast_channel_unlock(chan);
05939 
05940    return total;
05941 }

int pbx_builtin_setvar ( struct ast_channel chan,
void *  data 
)
Note:
Will lock the channel.

Definition at line 6066 of file pbx.c.

References ast_app_separate_args(), ast_log(), ast_strdupa, ast_strlen_zero(), LOG_WARNING, and pbx_builtin_setvar_helper().

Referenced by ast_compile_ael2().

06067 {
06068    char *name, *value, *mydata;
06069    int argc;
06070    char *argv[24];      /* this will only support a maximum of 24 variables being set in a single operation */
06071    int global = 0;
06072    int x;
06073 
06074    if (ast_strlen_zero(data)) {
06075       ast_log(LOG_WARNING, "Set requires at least one variable name/value pair.\n");
06076       return 0;
06077    }
06078 
06079    mydata = ast_strdupa(data);
06080    argc = ast_app_separate_args(mydata, '|', argv, sizeof(argv) / sizeof(argv[0]));
06081 
06082    /* check for a trailing flags argument */
06083    if ((argc > 1) && !strchr(argv[argc-1], '=')) {
06084       argc--;
06085       if (strchr(argv[argc], 'g')) {
06086          ast_log(LOG_WARNING, "The use of the 'g' flag is deprecated.  Please use Set(GLOBAL(foo)=bar) instead\n");
06087          global = 1;
06088       }
06089    }
06090 
06091    if (argc > 1)
06092       ast_log(LOG_WARNING, "Setting multiple variables at once within Set is deprecated.  Please separate each name/value pair into its own line.\n");
06093 
06094    for (x = 0; x < argc; x++) {
06095       name = argv[x];
06096       if ((value = strchr(name, '='))) {
06097          *value++ = '\0';
06098          pbx_builtin_setvar_helper((global) ? NULL : chan, name, value);
06099       } else
06100          ast_log(LOG_WARNING, "Ignoring entry '%s' with no = (and not last 'options' entry)\n", name);
06101    }
06102 
06103    return(0);
06104 }

void pbx_builtin_setvar_helper ( struct ast_channel chan,
const char *  name,
const char *  value 
)
Note:
Will lock the channel.

Definition at line 6015 of file pbx.c.

References ast_channel_lock, ast_channel_unlock, ast_func_write(), AST_LIST_INSERT_HEAD, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_mutex_lock(), ast_mutex_unlock(), ast_strdupa, ast_var_assign(), ast_var_delete(), ast_var_name(), ast_verbose(), option_verbose, ast_channel::varshead, and VERBOSE_PREFIX_2.

Referenced by __ast_pbx_run(), __login_exec(), __oh323_new(), _macro_exec(), _while_exec(), acf_odbc_read(), acf_odbc_write(), action_setvar(), agi_exec_full(), aji_status_exec(), aqm_exec(), array(), ast_bridge_call(), ast_iax2_new(), ast_monitor_start(), ast_monitor_stop(), ast_pbx_outgoing_exten(), ast_set_variables(), background_detect_exec(), builtin_automonitor(), builtin_blindtransfer(), cb_events(), chanavail_exec(), conf_run(), controlplayback_exec(), count_exec(), dahdi_handle_dtmf(), dahdi_new(), disa_exec(), do_waiting(), end_bridge_callback(), export_aoc_vars(), export_ch(), feature_request_and_dial(), function_db_delete(), function_db_exists(), function_db_read(), global_write(), handle_request_bye(), handle_request_refer(), handle_set_global(), handle_set_global_deprecated(), handle_setvariable(), hasvoicemail_exec(), isAnsweringMachine(), leave_voicemail(), local_hangup(), lookupblacklist_exec(), macro_fixup(), misdn_call(), mixmonitor_exec(), ospauth_exec(), ospfinished_exec(), osplookup_exec(), ospnext_exec(), park_call_full(), park_exec(), parse_moved_contact(), pbx_builtin_importvar(), pbx_builtin_saydate(), pbx_builtin_saytime(), pbx_builtin_setglobalvar(), pbx_builtin_setvar(), pbx_load_config(), play_message_datetime(), playback_exec(), pop_exec(), pqm_exec(), prep_email_sub_vars(), pri_dchannel(), privacy_exec(), process_ast_dsp(), read_exec(), readfile_exec(), realtime_exec(), realtime_update_exec(), record_exec(), return_exec(), ring_entry(), rqm_exec(), sendimage_exec(), sendtext_exec(), sendurl_exec(), set(), set_agentbycallerid(), set_queue_result(), sip_addheader(), sip_hangup(), sip_new(), sla_calc_trunk_timeouts(), sla_station_exec(), sla_trunk_exec(), socket_process(), speech_create(), ss_thread(), start_monitor_exec(), system_exec_helper(), transfer_exec(), try_calling(), tryexec_exec(), update_bridgepeer(), upqm_exec(), vm_box_exists(), vm_exec(), and vmauthenticate().

06016 {
06017    struct ast_var_t *newvariable;
06018    struct varshead *headp;
06019    const char *nametail = name;
06020 
06021    if (name[strlen(name)-1] == ')') {
06022       char *function = ast_strdupa(name);
06023 
06024       ast_func_write(chan, function, value);
06025       return;
06026    }
06027 
06028    if (chan) {
06029       ast_channel_lock(chan);
06030       headp = &chan->varshead;
06031    } else {
06032       ast_mutex_lock(&globalslock);
06033       headp = &globals;
06034    }
06035 
06036    /* For comparison purposes, we have to strip leading underscores */
06037    if (*nametail == '_') {
06038       nametail++;
06039       if (*nametail == '_')
06040          nametail++;
06041    }
06042 
06043    AST_LIST_TRAVERSE_SAFE_BEGIN(headp, newvariable, entries) {
06044       if (strcmp(ast_var_name(newvariable), nametail) == 0) {
06045          /* there is already such a variable, delete it */
06046          AST_LIST_REMOVE_CURRENT(headp, entries);
06047          ast_var_delete(newvariable);
06048          break;
06049       }
06050    }
06051    AST_LIST_TRAVERSE_SAFE_END;
06052 
06053    if (value) {
06054       if ((option_verbose > 1) && (headp == &globals))
06055          ast_verbose(VERBOSE_PREFIX_2 "Setting global variable '%s' to '%s'\n", name, value);
06056       newvariable = ast_var_assign(name, value);
06057       AST_LIST_INSERT_HEAD(headp, newvariable, entries);
06058    }
06059 
06060    if (chan)
06061       ast_channel_unlock(chan);
06062    else
06063       ast_mutex_unlock(&globalslock);
06064 }

int pbx_checkcondition ( const char *  condition  ) 

Evaluate a condition.

Return values:
0 if the condition is NULL or of zero length
int If the string is an integer, the integer representation of the integer is returned
1 Any other non-empty string

Definition at line 6177 of file pbx.c.

References ast_strlen_zero().

Referenced by _macro_exec(), _while_exec(), acf_if(), execif_exec(), gosubif_exec(), macroif_exec(), and pbx_builtin_gotoif().

06178 {
06179    if (ast_strlen_zero(condition))  /* NULL or empty strings are false */
06180       return 0;
06181    else if (*condition >= '0' && *condition <= '9')   /* Numbers are evaluated for truth */
06182       return atoi(condition);
06183    else  /* Strings are true */
06184       return 1;
06185 }

int pbx_exec ( struct ast_channel c,
struct ast_app app,
void *  data 
)

Execute an application.

Parameters:
c channel to execute on
app which app to execute
data the data passed into the app

This application executes an application on a given channel. It saves the stack and executes the given appliation passing in the given data.

Returns:
0 on success, and -1 on failure
Parameters:
c Channel
app Application
data Data for execution

Definition at line 551 of file pbx.c.

References ast_channel::appl, ast_cdr_setapp(), ast_check_hangup(), ast_channel::cdr, ast_channel::data, ast_app::execute, and S_OR.

Referenced by aelsub_exec(), answer_exec_run(), ast_bridge_call(), ast_pbx_run_app(), async_wait(), builtin_automonitor(), conf_run(), dundi_exec(), exec_exec(), execif_exec(), feature_exec_app(), forward_message(), handle_exec(), iax2_exec(), page_exec(), pbx_builtin_execiftime(), pbx_extension_helper(), realtime_exec(), try_calling(), and tryexec_exec().

00554 {
00555    int res;
00556 
00557    const char *saved_c_appl;
00558    const char *saved_c_data;
00559 
00560    if (c->cdr && !ast_check_hangup(c))
00561       ast_cdr_setapp(c->cdr, app->name, data);
00562 
00563    /* save channel values */
00564    saved_c_appl= c->appl;
00565    saved_c_data= c->data;
00566 
00567    c->appl = app->name;
00568    c->data = data;
00569    /* XXX remember what to to when we have linked apps to modules */
00570    if (app->module) {
00571       /* XXX LOCAL_USER_ADD(app->module) */
00572    }
00573    res = app->execute(c, S_OR(data, ""));
00574    if (app->module) {
00575       /* XXX LOCAL_USER_REMOVE(app->module) */
00576    }
00577    /* restore channel values */
00578    c->appl = saved_c_appl;
00579    c->data = saved_c_data;
00580    return res;
00581 }

struct ast_app* pbx_findapp ( const char *  app  )  [read]

Look up an application.

Parameters:
app name of the app

This function searches for the ast_app structure within the apps that are registered for the one with the name you passed in.

Returns:
the ast_app structure that matches on success, or NULL on failure

Definition at line 589 of file pbx.c.

References AST_LIST_LOCK, AST_LIST_TRAVERSE, and AST_LIST_UNLOCK.

Referenced by aelsub_exec(), answer_exec_run(), ast_bridge_call(), ast_pbx_run_app(), async_wait(), builtin_automonitor(), conf_run(), dundi_exec(), exec_exec(), execif_exec(), feature_exec_app(), forward_message(), handle_exec(), iax2_exec(), page_exec(), pbx_builtin_execiftime(), pbx_extension_helper(), realtime_exec(), try_calling(), and tryexec_exec().

00590 {
00591    struct ast_app *tmp;
00592 
00593    AST_LIST_LOCK(&apps);
00594    AST_LIST_TRAVERSE(&apps, tmp, list) {
00595       if (!strcasecmp(tmp->name, app))
00596          break;
00597    }
00598    AST_LIST_UNLOCK(&apps);
00599 
00600    return tmp;
00601 }

void pbx_retrieve_variable ( struct ast_channel c,
const char *  var,
char **  ret,
char *  workspace,
int  workspacelen,
struct varshead *  headp 
)

pbx_retrieve_variable: Support for Asterisk built-in variables ---

Note:
Will lock the channel.

Definition at line 1204 of file pbx.c.

References ast_cause2str(), ast_channel_lock, ast_channel_unlock, ast_config_AST_SYSTEM_NAME, ast_copy_string(), ast_get_hint(), AST_LIST_TRAVERSE, ast_mutex_lock(), ast_mutex_unlock(), ast_strdupa, ast_var_name(), ast_var_value(), ast_channel::cid, ast_callerid::cid_ani2, ast_callerid::cid_pres, ast_callerid::cid_tns, ast_callerid::cid_ton, ast_channel::context, ast_channel::exten, ast_channel::hangupcause, offset, parse_variable_name(), ast_channel::priority, s, substring(), and ast_channel::varshead.

Referenced by action_getvar(), handle_getvariable(), and pbx_substitute_variables_helper_full().

01205 {
01206    const char not_found = '\0';
01207    char *tmpvar;
01208    const char *s; /* the result */
01209    int offset, length;
01210    int i, need_substring;
01211    struct varshead *places[2] = { headp, &globals };  /* list of places where we may look */
01212 
01213    if (c) {
01214       ast_channel_lock(c);
01215       places[0] = &c->varshead;
01216    }
01217    /*
01218     * Make a copy of var because parse_variable_name() modifies the string.
01219     * Then if called directly, we might need to run substring() on the result;
01220     * remember this for later in 'need_substring', 'offset' and 'length'
01221     */
01222    tmpvar = ast_strdupa(var); /* parse_variable_name modifies the string */
01223    need_substring = parse_variable_name(tmpvar, &offset, &length, &i /* ignored */);
01224 
01225    /*
01226     * Look first into predefined variables, then into variable lists.
01227     * Variable 's' points to the result, according to the following rules:
01228     * s == &not_found (set at the beginning) means that we did not find a
01229     * matching variable and need to look into more places.
01230     * If s != &not_found, s is a valid result string as follows:
01231     * s = NULL if the variable does not have a value;
01232     * you typically do this when looking for an unset predefined variable.
01233     * s = workspace if the result has been assembled there;
01234     * typically done when the result is built e.g. with an snprintf(),
01235     * so we don't need to do an additional copy.
01236     * s != workspace in case we have a string, that needs to be copied
01237     * (the ast_copy_string is done once for all at the end).
01238     * Typically done when the result is already available in some string.
01239     */
01240    s = &not_found;   /* default value */
01241    if (c) { /* This group requires a valid channel */
01242       /* Names with common parts are looked up a piece at a time using strncmp. */
01243       if (!strncmp(var, "CALL", 4)) {
01244          if (!strncmp(var + 4, "ING", 3)) {
01245             if (!strcmp(var + 7, "PRES")) {        /* CALLINGPRES */
01246                snprintf(workspace, workspacelen, "%d", c->cid.cid_pres);
01247                s = workspace;
01248             } else if (!strcmp(var + 7, "ANI2")) {    /* CALLINGANI2 */
01249                snprintf(workspace, workspacelen, "%d", c->cid.cid_ani2);
01250                s = workspace;
01251             } else if (!strcmp(var + 7, "TON")) {     /* CALLINGTON */
01252                snprintf(workspace, workspacelen, "%d", c->cid.cid_ton);
01253                s = workspace;
01254             } else if (!strcmp(var + 7, "TNS")) {     /* CALLINGTNS */
01255                snprintf(workspace, workspacelen, "%d", c->cid.cid_tns);
01256                s = workspace;
01257             }
01258          }
01259       } else if (!strcmp(var, "HINT")) {
01260          s = ast_get_hint(workspace, workspacelen, NULL, 0, c, c->context, c->exten) ? workspace : NULL;
01261       } else if (!strcmp(var, "HINTNAME")) {
01262          s = ast_get_hint(NULL, 0, workspace, workspacelen, c, c->context, c->exten) ? workspace : NULL;
01263       } else if (!strcmp(var, "EXTEN")) {
01264          s = c->exten;
01265       } else if (!strcmp(var, "CONTEXT")) {
01266          s = c->context;
01267       } else if (!strcmp(var, "PRIORITY")) {
01268          snprintf(workspace, workspacelen, "%d", c->priority);
01269          s = workspace;
01270       } else if (!strcmp(var, "CHANNEL")) {
01271          s = c->name;
01272       } else if (!strcmp(var, "UNIQUEID")) {
01273          s = c->uniqueid;
01274       } else if (!strcmp(var, "HANGUPCAUSE")) {
01275          snprintf(workspace, workspacelen, "%d", c->hangupcause);
01276          s = workspace;
01277       } else if (c && !strcmp(var, "HANGUPCAUSESTR")) {
01278          ast_copy_string(workspace, ast_cause2str(c->hangupcause), workspacelen);
01279          *ret = workspace;
01280       }
01281    }
01282    if (s == &not_found) { /* look for more */
01283       if (!strcmp(var, "EPOCH")) {
01284          snprintf(workspace, workspacelen, "%u",(int)time(NULL));
01285          s = workspace;
01286       } else if (!strcmp(var, "SYSTEMNAME")) {
01287          s = ast_config_AST_SYSTEM_NAME;
01288       }
01289    }
01290    /* if not found, look into chanvars or global vars */
01291    for (i = 0; s == &not_found && i < (sizeof(places) / sizeof(places[0])); i++) {
01292       struct ast_var_t *variables;
01293       if (!places[i])
01294          continue;
01295       if (places[i] == &globals)
01296          ast_mutex_lock(&globalslock);
01297       AST_LIST_TRAVERSE(places[i], variables, entries) {
01298          if (strcasecmp(ast_var_name(variables), var)==0) {
01299             s = ast_var_value(variables);
01300             break;
01301          }
01302       }
01303       if (places[i] == &globals)
01304          ast_mutex_unlock(&globalslock);
01305    }
01306    if (s == &not_found || s == NULL)
01307       *ret = NULL;
01308    else {
01309       if (s != workspace)
01310          ast_copy_string(workspace, s, workspacelen);
01311       *ret = workspace;
01312       if (need_substring)
01313          *ret = substring(*ret, offset, length, workspace, workspacelen);
01314    }
01315 
01316    if (c)
01317       ast_channel_unlock(c);
01318 }

int pbx_set_autofallthrough ( int  newval  ) 

Set "autofallthrough" flag, if newval is <0, does not acutally set. If set to 1, sets to auto fall through. If newval set to 0, sets to no auto fall through (reads extension instead). Returns previous value.

Definition at line 2774 of file pbx.c.

Referenced by pbx_load_module().

02775 {
02776    int oldval = autofallthrough;
02777    autofallthrough = newval;
02778    return oldval;
02779 }

void pbx_substitute_variables_helper ( struct ast_channel c,
const char *  cp1,
char *  cp2,
int  count 
)
void pbx_substitute_variables_varshead ( struct varshead *  headp,
const char *  cp1,
char *  cp2,
int  count 
)

Definition at line 1829 of file pbx.c.

References pbx_substitute_variables_helper_full().

Referenced by ast_add_extension2(), do_say(), dundi_lookup_local(), and loopback_subst().

01830 {
01831    pbx_substitute_variables_helper_full(NULL, headp, cp1, cp2, count);
01832 }


Generated on 31 Mar 2014 for Asterisk - the Open Source PBX by  doxygen 1.6.1