00001 /* 00002 * Asterisk -- An open source telephony toolkit. 00003 * 00004 * Copyright (C) 1999 - 2006, Digium, Inc. 00005 * 00006 * Mark Spencer <markster@digium.com> 00007 * 00008 * See http://www.asterisk.org for more information about 00009 * the Asterisk project. Please do not directly contact 00010 * any of the maintainers of this project for assistance; 00011 * the project provides a web site, mailing lists and IRC 00012 * channels for your use. 00013 * 00014 * This program is free software, distributed under the terms of 00015 * the GNU General Public License Version 2. See the LICENSE file 00016 * at the top of the source tree. 00017 */ 00018 00019 /*! \file 00020 * \brief Core PBX routines and definitions. 00021 */ 00022 00023 #ifndef _ASTERISK_PBX_H 00024 #define _ASTERISK_PBX_H 00025 00026 #include "asterisk/channel.h" 00027 #include "asterisk/sched.h" 00028 #include "asterisk/devicestate.h" 00029 #include "asterisk/chanvars.h" 00030 #include "asterisk/hashtab.h" 00031 #include "asterisk/stringfields.h" 00032 #include "asterisk/xmldoc.h" 00033 #include "asterisk/frame_defs.h" 00034 00035 #if defined(__cplusplus) || defined(c_plusplus) 00036 extern "C" { 00037 #endif 00038 00039 #define AST_MAX_APP 32 /*!< Max length of an application */ 00040 00041 #define AST_PBX_GOTO_FAILED -3 00042 #define AST_PBX_KEEP 0 00043 #define AST_PBX_REPLACE 1 00044 00045 /*! \brief Special return values from applications to the PBX 00046 * @{ */ 00047 #define AST_PBX_HANGUP -1 /*!< Jump to the 'h' exten */ 00048 #define AST_PBX_OK 0 /*!< No errors */ 00049 #define AST_PBX_ERROR 1 /*!< Jump to the 'e' exten */ 00050 #define AST_PBX_INCOMPLETE 12 /*!< Return to PBX matching, allowing more digits for the extension */ 00051 /*! @} */ 00052 00053 #define PRIORITY_HINT -1 /*!< Special Priority for a hint */ 00054 00055 /*! 00056 * \brief Extension states 00057 * \note States can be combined 00058 * \ref AstExtState 00059 */ 00060 enum ast_extension_states { 00061 AST_EXTENSION_REMOVED = -2, /*!< Extension removed */ 00062 AST_EXTENSION_DEACTIVATED = -1, /*!< Extension hint removed */ 00063 AST_EXTENSION_NOT_INUSE = 0, /*!< No device INUSE or BUSY */ 00064 AST_EXTENSION_INUSE = 1 << 0, /*!< One or more devices INUSE */ 00065 AST_EXTENSION_BUSY = 1 << 1, /*!< All devices BUSY */ 00066 AST_EXTENSION_UNAVAILABLE = 1 << 2, /*!< All devices UNAVAILABLE/UNREGISTERED */ 00067 AST_EXTENSION_RINGING = 1 << 3, /*!< All devices RINGING */ 00068 AST_EXTENSION_ONHOLD = 1 << 4, /*!< All devices ONHOLD */ 00069 }; 00070 00071 00072 struct ast_context; 00073 struct ast_exten; 00074 struct ast_include; 00075 struct ast_ignorepat; 00076 struct ast_sw; 00077 00078 /*! \brief Typedef for devicestate and hint callbacks */ 00079 typedef int (*ast_state_cb_type)(char *context, char *id, enum ast_extension_states state, void *data); 00080 00081 /*! \brief Typedef for devicestate and hint callback removal indication callback */ 00082 typedef void (*ast_state_cb_destroy_type)(int id, void *data); 00083 00084 /*! \brief Data structure associated with a custom dialplan function */ 00085 struct ast_custom_function { 00086 const char *name; /*!< Name */ 00087 AST_DECLARE_STRING_FIELDS( 00088 AST_STRING_FIELD(synopsis); /*!< Synopsis text for 'show functions' */ 00089 AST_STRING_FIELD(desc); /*!< Description (help text) for 'show functions <name>' */ 00090 AST_STRING_FIELD(syntax); /*!< Syntax text for 'core show functions' */ 00091 AST_STRING_FIELD(arguments); /*!< Arguments description */ 00092 AST_STRING_FIELD(seealso); /*!< See also */ 00093 ); 00094 enum ast_doc_src docsrc; /*!< Where the documentation come from */ 00095 /*! Read function, if read is supported */ 00096 ast_acf_read_fn_t read; /*!< Read function, if read is supported */ 00097 /*! Read function, if read is supported. Note: only one of read or read2 00098 * needs to be implemented. In new code, read2 should be implemented as 00099 * the way forward, but they should return identical results, within the 00100 * constraints of buffer size, if both are implemented. That is, if the 00101 * read function is handed a 16-byte buffer, and the result is 17 bytes 00102 * long, then the first 15 bytes (remember NULL terminator) should be 00103 * the same for both the read and the read2 methods. */ 00104 ast_acf_read2_fn_t read2; 00105 /*! If no read2 function is provided, what maximum size? */ 00106 size_t read_max; 00107 /*! Write function, if write is supported */ 00108 ast_acf_write_fn_t write; /*!< Write function, if write is supported */ 00109 struct ast_module *mod; /*!< Module this custom function belongs to */ 00110 AST_RWLIST_ENTRY(ast_custom_function) acflist; 00111 }; 00112 00113 /*! \brief All switch functions have the same interface, so define a type for them */ 00114 typedef int (ast_switch_f)(struct ast_channel *chan, const char *context, 00115 const char *exten, int priority, const char *callerid, const char *data); 00116 00117 /*!< Data structure associated with an Asterisk switch */ 00118 struct ast_switch { 00119 AST_LIST_ENTRY(ast_switch) list; 00120 const char *name; /*!< Name of the switch */ 00121 const char *description; /*!< Description of the switch */ 00122 00123 ast_switch_f *exists; 00124 ast_switch_f *canmatch; 00125 ast_switch_f *exec; 00126 ast_switch_f *matchmore; 00127 }; 00128 00129 struct ast_timing { 00130 int hastime; /*!< If time construct exists */ 00131 unsigned int monthmask; /*!< Mask for month */ 00132 unsigned int daymask; /*!< Mask for date */ 00133 unsigned int dowmask; /*!< Mask for day of week (sun-sat) */ 00134 unsigned int minmask[48]; /*!< Mask for minute */ 00135 char *timezone; /*!< NULL, or zoneinfo style timezone */ 00136 }; 00137 00138 /*! 00139 * \brief Construct a timing bitmap, for use in time-based conditionals. 00140 * \param i Pointer to an ast_timing structure. 00141 * \param info Standard string containing a timerange, weekday range, monthday range, and month range, as well as an optional timezone. 00142 * \retval Returns 1 on success or 0 on failure. 00143 */ 00144 int ast_build_timing(struct ast_timing *i, const char *info); 00145 00146 /*! 00147 * \brief Evaluate a pre-constructed bitmap as to whether the current time falls within the range specified. 00148 * \param i Pointer to an ast_timing structure. 00149 * \retval Returns 1, if the time matches or 0, if the current time falls outside of the specified range. 00150 */ 00151 int ast_check_timing(const struct ast_timing *i); 00152 00153 /*! 00154 * \brief Evaluate a pre-constructed bitmap as to whether a particular time falls within the range specified. 00155 * \param i Pointer to an ast_timing structure. 00156 * \param tv Specified time 00157 * \retval Returns 1, if the time matches or 0, if the time falls outside of the specified range. 00158 */ 00159 int ast_check_timing2(const struct ast_timing *i, const struct timeval tv); 00160 00161 /*! 00162 * \brief Deallocates memory structures associated with a timing bitmap. 00163 * \param i Pointer to an ast_timing structure. 00164 * \retval 0 success 00165 * \retval non-zero failure (number suitable to pass to \see strerror) 00166 */ 00167 int ast_destroy_timing(struct ast_timing *i); 00168 00169 struct ast_pbx { 00170 int dtimeoutms; /*!< Timeout between digits (milliseconds) */ 00171 int rtimeoutms; /*!< Timeout for response (milliseconds) */ 00172 }; 00173 00174 00175 /*! 00176 * \brief Register an alternative dialplan switch 00177 * 00178 * \param sw switch to register 00179 * 00180 * This function registers a populated ast_switch structure with the 00181 * asterisk switching architecture. 00182 * 00183 * \retval 0 success 00184 * \retval non-zero failure 00185 */ 00186 int ast_register_switch(struct ast_switch *sw); 00187 00188 /*! 00189 * \brief Unregister an alternative switch 00190 * 00191 * \param sw switch to unregister 00192 * 00193 * Unregisters a switch from asterisk. 00194 * 00195 * \return nothing 00196 */ 00197 void ast_unregister_switch(struct ast_switch *sw); 00198 00199 /*! 00200 * \brief Look up an application 00201 * 00202 * \param app name of the app 00203 * 00204 * This function searches for the ast_app structure within 00205 * the apps that are registered for the one with the name 00206 * you passed in. 00207 * 00208 * \return the ast_app structure that matches on success, or NULL on failure 00209 */ 00210 struct ast_app *pbx_findapp(const char *app); 00211 00212 /*! 00213 * \brief Execute an application 00214 * 00215 * \param c channel to execute on 00216 * \param app which app to execute 00217 * \param data the data passed into the app 00218 * 00219 * This application executes an application on a given channel. It 00220 * saves the stack and executes the given application passing in 00221 * the given data. 00222 * 00223 * \retval 0 success 00224 * \retval -1 failure 00225 */ 00226 int pbx_exec(struct ast_channel *c, struct ast_app *app, const char *data); 00227 00228 /*! 00229 * \brief Register a new context or find an existing one 00230 * 00231 * \param extcontexts pointer to the ast_context structure pointer 00232 * \param exttable pointer to the hashtable that contains all the elements in extcontexts 00233 * \param name name of the new context 00234 * \param registrar registrar of the context 00235 * 00236 * This function allows you to play in two environments: the global contexts (active dialplan) 00237 * or an external context set of your choosing. To act on the external set, make sure extcontexts 00238 * and exttable are set; for the globals, make sure both extcontexts and exttable are NULL. 00239 * 00240 * This will first search for a context with your name. If it exists already, it will not 00241 * create a new one. If it does not exist, it will create a new one with the given name 00242 * and registrar. 00243 * 00244 * \return NULL on failure, and an ast_context structure on success 00245 */ 00246 struct ast_context *ast_context_find_or_create(struct ast_context **extcontexts, struct ast_hashtab *exttable, const char *name, const char *registrar); 00247 00248 /*! 00249 * \brief Merge the temporary contexts into a global contexts list and delete from the 00250 * global list the ones that are being added 00251 * 00252 * \param extcontexts pointer to the ast_context structure 00253 * \param exttable pointer to the ast_hashtab structure that contains all the elements in extcontexts 00254 * \param registrar of the context; if it's set the routine will delete all contexts 00255 * that belong to that registrar; if NULL only the contexts that are specified 00256 * in extcontexts 00257 */ 00258 void ast_merge_contexts_and_delete(struct ast_context **extcontexts, struct ast_hashtab *exttable, const char *registrar); 00259 00260 /*! 00261 * \brief Destroy a context (matches the specified context (or ANY context if NULL) 00262 * 00263 * \param con context to destroy 00264 * \param registrar who registered it 00265 * 00266 * You can optionally leave out either parameter. It will find it 00267 * based on either the ast_context or the registrar name. 00268 * 00269 * \return nothing 00270 */ 00271 void ast_context_destroy(struct ast_context *con, const char *registrar); 00272 00273 /*! 00274 * \brief Find a context 00275 * 00276 * \param name name of the context to find 00277 * 00278 * Will search for the context with the given name. 00279 * 00280 * \return the ast_context on success, NULL on failure. 00281 */ 00282 struct ast_context *ast_context_find(const char *name); 00283 00284 /*! 00285 * \brief The result codes when starting the PBX on a channel with ast_pbx_start. 00286 * \note AST_PBX_CALL_LIMIT refers to the maxcalls call limit in asterisk.conf 00287 * \see ast_pbx_start 00288 */ 00289 enum ast_pbx_result { 00290 AST_PBX_SUCCESS = 0, 00291 AST_PBX_FAILED = -1, 00292 AST_PBX_CALL_LIMIT = -2, 00293 }; 00294 00295 /*! 00296 * \brief Create a new thread and start the PBX 00297 * 00298 * \param c channel to start the pbx on 00299 * 00300 * \see ast_pbx_run for a synchronous function to run the PBX in the 00301 * current thread, as opposed to starting a new one. 00302 * 00303 * \retval Zero on success 00304 * \retval non-zero on failure 00305 */ 00306 enum ast_pbx_result ast_pbx_start(struct ast_channel *c); 00307 00308 /*! 00309 * \brief Execute the PBX in the current thread 00310 * 00311 * \param c channel to run the pbx on 00312 * 00313 * This executes the PBX on a given channel. It allocates a new 00314 * PBX structure for the channel, and provides all PBX functionality. 00315 * See ast_pbx_start for an asynchronous function to run the PBX in a 00316 * new thread as opposed to the current one. 00317 * 00318 * \retval Zero on success 00319 * \retval non-zero on failure 00320 */ 00321 enum ast_pbx_result ast_pbx_run(struct ast_channel *c); 00322 00323 /*! 00324 * \brief Options for ast_pbx_run() 00325 */ 00326 struct ast_pbx_args { 00327 union { 00328 /*! Pad this out so that we have plenty of room to add options 00329 * but still maintain ABI compatibility over time. */ 00330 uint64_t __padding; 00331 struct { 00332 /*! Do not hangup the channel when the PBX is complete. */ 00333 unsigned int no_hangup_chan:1; 00334 }; 00335 }; 00336 }; 00337 00338 /*! 00339 * \brief Execute the PBX in the current thread 00340 * 00341 * \param c channel to run the pbx on 00342 * \param args options for the pbx 00343 * 00344 * This executes the PBX on a given channel. It allocates a new 00345 * PBX structure for the channel, and provides all PBX functionality. 00346 * See ast_pbx_start for an asynchronous function to run the PBX in a 00347 * new thread as opposed to the current one. 00348 * 00349 * \retval Zero on success 00350 * \retval non-zero on failure 00351 */ 00352 enum ast_pbx_result ast_pbx_run_args(struct ast_channel *c, struct ast_pbx_args *args); 00353 00354 /*! 00355 * \brief Add and extension to an extension context. 00356 * 00357 * \param context context to add the extension to 00358 * \param replace 00359 * \param extension extension to add 00360 * \param priority priority level of extension addition 00361 * \param label extension label 00362 * \param callerid pattern to match CallerID, or NULL to match any CallerID 00363 * \param application application to run on the extension with that priority level 00364 * \param data data to pass to the application 00365 * \param datad 00366 * \param registrar who registered the extension 00367 * 00368 * \retval 0 success 00369 * \retval -1 failure 00370 */ 00371 int ast_add_extension(const char *context, int replace, const char *extension, 00372 int priority, const char *label, const char *callerid, 00373 const char *application, void *data, void (*datad)(void *), const char *registrar); 00374 00375 /*! 00376 * \brief Add an extension to an extension context, this time with an ast_context *. 00377 * 00378 * \note For details about the arguments, check ast_add_extension() 00379 */ 00380 int ast_add_extension2(struct ast_context *con, int replace, const char *extension, 00381 int priority, const char *label, const char *callerid, 00382 const char *application, void *data, void (*datad)(void *), const char *registrar); 00383 00384 /*! 00385 * \brief Map devstate to an extension state. 00386 * 00387 * \param[in] devstate device state 00388 * 00389 * \return the extension state mapping. 00390 */ 00391 enum ast_extension_states ast_devstate_to_extenstate(enum ast_device_state devstate); 00392 00393 /*! 00394 * \brief Uses hint and devicestate callback to get the state of an extension 00395 * 00396 * \param c this is not important 00397 * \param context which context to look in 00398 * \param exten which extension to get state 00399 * 00400 * \return extension state as defined in the ast_extension_states enum 00401 */ 00402 int ast_extension_state(struct ast_channel *c, const char *context, const char *exten); 00403 00404 /*! 00405 * \brief Return string representation of the state of an extension 00406 * 00407 * \param extension_state is the numerical state delivered by ast_extension_state 00408 * 00409 * \return the state of an extension as string 00410 */ 00411 const char *ast_extension_state2str(int extension_state); 00412 00413 /*! 00414 * \brief Registers a state change callback with destructor. 00415 * \since 1.8.9 00416 * \since 10.1.0 00417 * 00418 * \param context which context to look in 00419 * \param exten which extension to get state 00420 * \param change_cb callback to call if state changed 00421 * \param destroy_cb callback to call when registration destroyed. 00422 * \param data to pass to callback 00423 * 00424 * \note The change_cb is called if the state of an extension is changed. 00425 * 00426 * \note The destroy_cb is called when the registration is 00427 * deleted so the registerer can release any associated 00428 * resources. 00429 * 00430 * \retval -1 on failure 00431 * \retval ID on success 00432 */ 00433 int ast_extension_state_add_destroy(const char *context, const char *exten, 00434 ast_state_cb_type change_cb, ast_state_cb_destroy_type destroy_cb, void *data); 00435 00436 /*! 00437 * \brief Registers a state change callback 00438 * 00439 * \param context which context to look in 00440 * \param exten which extension to get state 00441 * \param change_cb callback to call if state changed 00442 * \param data to pass to callback 00443 * 00444 * \note The change_cb is called if the state of an extension is changed. 00445 * 00446 * \retval -1 on failure 00447 * \retval ID on success 00448 */ 00449 int ast_extension_state_add(const char *context, const char *exten, 00450 ast_state_cb_type change_cb, void *data); 00451 00452 /*! 00453 * \brief Deletes a registered state change callback by ID 00454 * 00455 * \param id of the registered state callback to delete 00456 * \param change_cb callback to call if state changed (Used if id == 0 (global)) 00457 * 00458 * \retval 0 success 00459 * \retval -1 failure 00460 */ 00461 int ast_extension_state_del(int id, ast_state_cb_type change_cb); 00462 00463 /*! 00464 * \brief If an extension hint exists, return non-zero 00465 * 00466 * \param hint buffer for hint 00467 * \param hintsize size of hint buffer, in bytes 00468 * \param name buffer for name portion of hint 00469 * \param namesize size of name buffer 00470 * \param c Channel from which to return the hint. This is only important when the hint or name contains an expression to be expanded. 00471 * \param context which context to look in 00472 * \param exten which extension to search for 00473 * 00474 * \return If an extension within the given context with the priority PRIORITY_HINT 00475 * is found, a non zero value will be returned. 00476 * Otherwise, 0 is returned. 00477 */ 00478 int ast_get_hint(char *hint, int hintsize, char *name, int namesize, 00479 struct ast_channel *c, const char *context, const char *exten); 00480 00481 /*! 00482 * \brief If an extension hint exists, return non-zero 00483 * 00484 * \param hint buffer for hint 00485 * \param hintsize Maximum size of hint buffer (<0 to prevent growth, >0 to limit growth to that number of bytes, or 0 for unlimited growth) 00486 * \param name buffer for name portion of hint 00487 * \param namesize Maximum size of name buffer (<0 to prevent growth, >0 to limit growth to that number of bytes, or 0 for unlimited growth) 00488 * \param c Channel from which to return the hint. This is only important when the hint or name contains an expression to be expanded. 00489 * \param context which context to look in 00490 * \param exten which extension to search for 00491 * 00492 * \return If an extension within the given context with the priority PRIORITY_HINT 00493 * is found, a non zero value will be returned. 00494 * Otherwise, 0 is returned. 00495 */ 00496 int ast_str_get_hint(struct ast_str **hint, ssize_t hintsize, struct ast_str **name, ssize_t namesize, 00497 struct ast_channel *c, const char *context, const char *exten); 00498 00499 /*! 00500 * \brief Determine whether an extension exists 00501 * 00502 * \param c this is not important 00503 * \param context which context to look in 00504 * \param exten which extension to search for 00505 * \param priority priority of the action within the extension 00506 * \param callerid callerid to search for 00507 * 00508 * \note It is possible for autoservice to be started and stopped on c during this 00509 * function call, it is important that c is not locked prior to calling this. Otherwise 00510 * a deadlock may occur 00511 * 00512 * \return If an extension within the given context(or callerid) with the given priority 00513 * is found a non zero value will be returned. Otherwise, 0 is returned. 00514 */ 00515 int ast_exists_extension(struct ast_channel *c, const char *context, const char *exten, 00516 int priority, const char *callerid); 00517 00518 /*! 00519 * \brief Find the priority of an extension that has the specified label 00520 * 00521 * \param c this is not important 00522 * \param context which context to look in 00523 * \param exten which extension to search for 00524 * \param label label of the action within the extension to match to priority 00525 * \param callerid callerid to search for 00526 * 00527 * \note It is possible for autoservice to be started and stopped on c during this 00528 * function call, it is important that c is not locked prior to calling this. Otherwise 00529 * a deadlock may occur 00530 * 00531 * \retval the priority which matches the given label in the extension 00532 * \retval -1 if not found. 00533 */ 00534 int ast_findlabel_extension(struct ast_channel *c, const char *context, 00535 const char *exten, const char *label, const char *callerid); 00536 00537 /*! 00538 * \brief Find the priority of an extension that has the specified label 00539 * 00540 * \note It is possible for autoservice to be started and stopped on c during this 00541 * function call, it is important that c is not locked prior to calling this. Otherwise 00542 * a deadlock may occur 00543 * 00544 * \note This function is the same as ast_findlabel_extension, except that it accepts 00545 * a pointer to an ast_context structure to specify the context instead of the 00546 * name of the context. Otherwise, the functions behave the same. 00547 */ 00548 int ast_findlabel_extension2(struct ast_channel *c, struct ast_context *con, 00549 const char *exten, const char *label, const char *callerid); 00550 00551 /*! 00552 * \brief Looks for a valid matching extension 00553 * 00554 * \param c not really important 00555 * \param context context to serach within 00556 * \param exten extension to check 00557 * \param priority priority of extension path 00558 * \param callerid callerid of extension being searched for 00559 * 00560 * \note It is possible for autoservice to be started and stopped on c during this 00561 * function call, it is important that c is not locked prior to calling this. Otherwise 00562 * a deadlock may occur 00563 * 00564 * \return If "exten" *could be* a valid extension in this context with or without 00565 * some more digits, return non-zero. Basically, when this returns 0, no matter 00566 * what you add to exten, it's not going to be a valid extension anymore 00567 */ 00568 int ast_canmatch_extension(struct ast_channel *c, const char *context, 00569 const char *exten, int priority, const char *callerid); 00570 00571 /*! 00572 * \brief Looks to see if adding anything to this extension might match something. (exists ^ canmatch) 00573 * 00574 * \param c not really important XXX 00575 * \param context context to serach within 00576 * \param exten extension to check 00577 * \param priority priority of extension path 00578 * \param callerid callerid of extension being searched for 00579 * 00580 * \note It is possible for autoservice to be started and stopped on c during this 00581 * function call, it is important that c is not locked prior to calling this. Otherwise 00582 * a deadlock may occur 00583 * 00584 * \return If "exten" *could match* a valid extension in this context with 00585 * some more digits, return non-zero. Does NOT return non-zero if this is 00586 * an exact-match only. Basically, when this returns 0, no matter 00587 * what you add to exten, it's not going to be a valid extension anymore 00588 */ 00589 int ast_matchmore_extension(struct ast_channel *c, const char *context, 00590 const char *exten, int priority, const char *callerid); 00591 00592 /*! 00593 * \brief Determine if a given extension matches a given pattern (in NXX format) 00594 * 00595 * \param pattern pattern to match 00596 * \param extension extension to check against the pattern. 00597 * 00598 * Checks whether or not the given extension matches the given pattern. 00599 * 00600 * \retval 1 on match 00601 * \retval 0 on failure 00602 */ 00603 int ast_extension_match(const char *pattern, const char *extension); 00604 00605 int ast_extension_close(const char *pattern, const char *data, int needmore); 00606 00607 /*! 00608 * \brief Determine if one extension should match before another 00609 * 00610 * \param a extension to compare with b 00611 * \param b extension to compare with a 00612 * 00613 * Checks whether or extension a should match before extension b 00614 * 00615 * \retval 0 if the two extensions have equal matching priority 00616 * \retval 1 on a > b 00617 * \retval -1 on a < b 00618 */ 00619 int ast_extension_cmp(const char *a, const char *b); 00620 00621 /*! 00622 * \brief Launch a new extension (i.e. new stack) 00623 * 00624 * \param c not important 00625 * \param context which context to generate the extension within 00626 * \param exten new extension to add 00627 * \param priority priority of new extension 00628 * \param callerid callerid of extension 00629 * \param found 00630 * \param combined_find_spawn 00631 * 00632 * This adds a new extension to the asterisk extension list. 00633 * 00634 * \note It is possible for autoservice to be started and stopped on c during this 00635 * function call, it is important that c is not locked prior to calling this. Otherwise 00636 * a deadlock may occur 00637 * 00638 * \retval 0 on success 00639 * \retval -1 on failure. 00640 */ 00641 int ast_spawn_extension(struct ast_channel *c, const char *context, 00642 const char *exten, int priority, const char *callerid, int *found, int combined_find_spawn); 00643 00644 /*! 00645 * \brief Add a context include 00646 * 00647 * \param context context to add include to 00648 * \param include new include to add 00649 * \param registrar who's registering it 00650 * 00651 * Adds an include taking a char * string as the context parameter 00652 * 00653 * \retval 0 on success 00654 * \retval -1 on error 00655 */ 00656 int ast_context_add_include(const char *context, const char *include, 00657 const char *registrar); 00658 00659 /*! 00660 * \brief Add a context include 00661 * 00662 * \param con context to add the include to 00663 * \param include include to add 00664 * \param registrar who registered the context 00665 * 00666 * Adds an include taking a struct ast_context as the first parameter 00667 * 00668 * \retval 0 on success 00669 * \retval -1 on failure 00670 */ 00671 int ast_context_add_include2(struct ast_context *con, const char *include, 00672 const char *registrar); 00673 00674 /*! 00675 * \brief Remove a context include 00676 * 00677 * \note See ast_context_add_include for information on arguments 00678 * 00679 * \retval 0 on success 00680 * \retval -1 on failure 00681 */ 00682 int ast_context_remove_include(const char *context, const char *include, 00683 const char *registrar); 00684 00685 /*! 00686 * \brief Removes an include by an ast_context structure 00687 * 00688 * \note See ast_context_add_include2 for information on arguments 00689 * 00690 * \retval 0 on success 00691 * \retval -1 on success 00692 */ 00693 int ast_context_remove_include2(struct ast_context *con, const char *include, 00694 const char *registrar); 00695 00696 /*! 00697 * \brief Verifies includes in an ast_contect structure 00698 * 00699 * \param con context in which to verify the includes 00700 * 00701 * \retval 0 if no problems found 00702 * \retval -1 if there were any missing context 00703 */ 00704 int ast_context_verify_includes(struct ast_context *con); 00705 00706 /*! 00707 * \brief Add a switch 00708 * 00709 * \param context context to which to add the switch 00710 * \param sw switch to add 00711 * \param data data to pass to switch 00712 * \param eval whether to evaluate variables when running switch 00713 * \param registrar whoever registered the switch 00714 * 00715 * This function registers a switch with the asterisk switch architecture 00716 * 00717 * \retval 0 on success 00718 * \retval -1 on failure 00719 */ 00720 int ast_context_add_switch(const char *context, const char *sw, const char *data, 00721 int eval, const char *registrar); 00722 00723 /*! 00724 * \brief Adds a switch (first param is a ast_context) 00725 * 00726 * \note See ast_context_add_switch() for argument information, with the exception of 00727 * the first argument. In this case, it's a pointer to an ast_context structure 00728 * as opposed to the name. 00729 */ 00730 int ast_context_add_switch2(struct ast_context *con, const char *sw, const char *data, 00731 int eval, const char *registrar); 00732 00733 /*! 00734 * \brief Remove a switch 00735 * 00736 * Removes a switch with the given parameters 00737 * 00738 * \retval 0 on success 00739 * \retval -1 on failure 00740 */ 00741 int ast_context_remove_switch(const char *context, const char *sw, 00742 const char *data, const char *registrar); 00743 00744 int ast_context_remove_switch2(struct ast_context *con, const char *sw, 00745 const char *data, const char *registrar); 00746 00747 /*! 00748 * \brief Simply remove extension from context 00749 * 00750 * \param context context to remove extension from 00751 * \param extension which extension to remove 00752 * \param priority priority of extension to remove (0 to remove all) 00753 * \param registrar registrar of the extension 00754 * 00755 * This function removes an extension from a given context. 00756 * 00757 * \retval 0 on success 00758 * \retval -1 on failure 00759 * 00760 * @{ 00761 */ 00762 int ast_context_remove_extension(const char *context, const char *extension, int priority, 00763 const char *registrar); 00764 00765 int ast_context_remove_extension2(struct ast_context *con, const char *extension, 00766 int priority, const char *registrar, int already_locked); 00767 00768 int ast_context_remove_extension_callerid(const char *context, const char *extension, 00769 int priority, const char *callerid, int matchcid, const char *registrar); 00770 00771 int ast_context_remove_extension_callerid2(struct ast_context *con, const char *extension, 00772 int priority, const char *callerid, int matchcid, const char *registrar, 00773 int already_locked); 00774 /*! @} */ 00775 00776 /*! 00777 * \brief Add an ignorepat 00778 * 00779 * \param context which context to add the ignorpattern to 00780 * \param ignorepat ignorepattern to set up for the extension 00781 * \param registrar registrar of the ignore pattern 00782 * 00783 * Adds an ignore pattern to a particular context. 00784 * 00785 * \retval 0 on success 00786 * \retval -1 on failure 00787 */ 00788 int ast_context_add_ignorepat(const char *context, const char *ignorepat, const char *registrar); 00789 00790 int ast_context_add_ignorepat2(struct ast_context *con, const char *ignorepat, const char *registrar); 00791 00792 /* 00793 * \brief Remove an ignorepat 00794 * 00795 * \param context context from which to remove the pattern 00796 * \param ignorepat the pattern to remove 00797 * \param registrar the registrar of the ignore pattern 00798 * 00799 * This removes the given ignorepattern 00800 * 00801 * \retval 0 on success 00802 * \retval -1 on failure 00803 */ 00804 int ast_context_remove_ignorepat(const char *context, const char *ignorepat, const char *registrar); 00805 00806 int ast_context_remove_ignorepat2(struct ast_context *con, const char *ignorepat, const char *registrar); 00807 00808 /*! 00809 * \brief Checks to see if a number should be ignored 00810 * 00811 * \param context context to search within 00812 * \param pattern to check whether it should be ignored or not 00813 * 00814 * Check if a number should be ignored with respect to dialtone cancellation. 00815 * 00816 * \retval 0 if the pattern should not be ignored 00817 * \retval non-zero if the pattern should be ignored 00818 */ 00819 int ast_ignore_pattern(const char *context, const char *pattern); 00820 00821 /* Locking functions for outer modules, especially for completion functions */ 00822 00823 /*! 00824 * \brief Write locks the context list 00825 * 00826 * \retval 0 on success 00827 * \retval -1 on error 00828 */ 00829 int ast_wrlock_contexts(void); 00830 00831 /*! 00832 * \brief Read locks the context list 00833 * 00834 * \retval 0 on success 00835 * \retval -1 on error 00836 */ 00837 int ast_rdlock_contexts(void); 00838 00839 /*! 00840 * \brief Unlocks contexts 00841 * 00842 * \retval 0 on success 00843 * \retval -1 on failure 00844 */ 00845 int ast_unlock_contexts(void); 00846 00847 /*! 00848 * \brief Write locks a given context 00849 * 00850 * \param con context to lock 00851 * 00852 * \retval 0 on success 00853 * \retval -1 on failure 00854 */ 00855 int ast_wrlock_context(struct ast_context *con); 00856 00857 /*! 00858 * \brief Read locks a given context 00859 * 00860 * \param con context to lock 00861 * 00862 * \retval 0 on success 00863 * \retval -1 on failure 00864 */ 00865 int ast_rdlock_context(struct ast_context *con); 00866 00867 /*! 00868 * \retval Unlocks the given context 00869 * 00870 * \param con context to unlock 00871 * 00872 * \retval 0 on success 00873 * \retval -1 on failure 00874 */ 00875 int ast_unlock_context(struct ast_context *con); 00876 00877 /*! 00878 * \brief locks the macrolock in the given given context 00879 * 00880 * \param macrocontext name of the macro-context to lock 00881 * 00882 * Locks the given macro-context to ensure only one thread (call) can execute it at a time 00883 * 00884 * \retval 0 on success 00885 * \retval -1 on failure 00886 */ 00887 int ast_context_lockmacro(const char *macrocontext); 00888 00889 /*! 00890 * \brief Unlocks the macrolock in the given context 00891 * 00892 * \param macrocontext name of the macro-context to unlock 00893 * 00894 * Unlocks the given macro-context so that another thread (call) can execute it 00895 * 00896 * \retval 0 on success 00897 * \retval -1 on failure 00898 */ 00899 int ast_context_unlockmacro(const char *macrocontext); 00900 00901 /*! 00902 * \brief Set the channel to next execute the specified dialplan location. 00903 * \see ast_async_parseable_goto, ast_async_goto_if_exists 00904 * 00905 * \note Do _NOT_ hold any channel locks when calling this function. 00906 */ 00907 int ast_async_goto(struct ast_channel *chan, const char *context, const char *exten, int priority); 00908 00909 /*! 00910 * \brief Set the channel to next execute the specified dialplan location. 00911 */ 00912 int ast_async_goto_by_name(const char *chan, const char *context, const char *exten, int priority); 00913 00914 /*! Synchronously or asynchronously make an outbound call and send it to a 00915 particular extension */ 00916 int ast_pbx_outgoing_exten(const char *type, format_t 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); 00917 00918 /*! Synchronously or asynchronously make an outbound call and send it to a 00919 particular application with given extension */ 00920 int ast_pbx_outgoing_app(const char *type, format_t 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); 00921 00922 /*! 00923 * \brief Evaluate a condition 00924 * 00925 * \retval 0 if the condition is NULL or of zero length 00926 * \retval int If the string is an integer, the integer representation of 00927 * the integer is returned 00928 * \retval 1 Any other non-empty string 00929 */ 00930 int pbx_checkcondition(const char *condition); 00931 00932 /*! @name 00933 * Functions for returning values from structures */ 00934 /*! @{ */ 00935 const char *ast_get_context_name(struct ast_context *con); 00936 const char *ast_get_extension_name(struct ast_exten *exten); 00937 struct ast_context *ast_get_extension_context(struct ast_exten *exten); 00938 const char *ast_get_include_name(struct ast_include *include); 00939 const char *ast_get_ignorepat_name(struct ast_ignorepat *ip); 00940 const char *ast_get_switch_name(struct ast_sw *sw); 00941 const char *ast_get_switch_data(struct ast_sw *sw); 00942 int ast_get_switch_eval(struct ast_sw *sw); 00943 00944 /*! @} */ 00945 00946 /*! @name Other Extension stuff */ 00947 /*! @{ */ 00948 int ast_get_extension_priority(struct ast_exten *exten); 00949 int ast_get_extension_matchcid(struct ast_exten *e); 00950 const char *ast_get_extension_cidmatch(struct ast_exten *e); 00951 const char *ast_get_extension_app(struct ast_exten *e); 00952 const char *ast_get_extension_label(struct ast_exten *e); 00953 void *ast_get_extension_app_data(struct ast_exten *e); 00954 /*! @} */ 00955 00956 /*! @name Registrar info functions ... */ 00957 /*! @{ */ 00958 const char *ast_get_context_registrar(struct ast_context *c); 00959 const char *ast_get_extension_registrar(struct ast_exten *e); 00960 const char *ast_get_include_registrar(struct ast_include *i); 00961 const char *ast_get_ignorepat_registrar(struct ast_ignorepat *ip); 00962 const char *ast_get_switch_registrar(struct ast_sw *sw); 00963 /*! @} */ 00964 00965 /*! @name Walking functions ... */ 00966 /*! @{ */ 00967 struct ast_context *ast_walk_contexts(struct ast_context *con); 00968 struct ast_exten *ast_walk_context_extensions(struct ast_context *con, 00969 struct ast_exten *priority); 00970 struct ast_exten *ast_walk_extension_priorities(struct ast_exten *exten, 00971 struct ast_exten *priority); 00972 struct ast_include *ast_walk_context_includes(struct ast_context *con, 00973 struct ast_include *inc); 00974 struct ast_ignorepat *ast_walk_context_ignorepats(struct ast_context *con, 00975 struct ast_ignorepat *ip); 00976 struct ast_sw *ast_walk_context_switches(struct ast_context *con, struct ast_sw *sw); 00977 /*! @} */ 00978 00979 /*! 00980 * \brief Create a human-readable string, specifying all variables and their corresponding values. 00981 * \param chan Channel from which to read variables 00982 * \param buf Dynamic string in which to place the result (should be allocated with ast_str_create). 00983 * \see ast_str_create 00984 * \note Will lock the channel. 00985 */ 00986 int pbx_builtin_serialize_variables(struct ast_channel *chan, struct ast_str **buf); 00987 00988 /*! 00989 * \brief Return a pointer to the value of the corresponding channel variable. 00990 * \note Will lock the channel. 00991 * 00992 * \note This function will return a pointer to the buffer inside the channel 00993 * variable. This value should only be accessed with the channel locked. If 00994 * the value needs to be kept around, it should be done by using the following 00995 * thread-safe code: 00996 * \code 00997 * const char *var; 00998 * 00999 * ast_channel_lock(chan); 01000 * if ((var = pbx_builtin_getvar_helper(chan, "MYVAR"))) { 01001 * var = ast_strdupa(var); 01002 * } 01003 * ast_channel_unlock(chan); 01004 * \endcode 01005 */ 01006 const char *pbx_builtin_getvar_helper(struct ast_channel *chan, const char *name); 01007 01008 /*! 01009 * \brief Add a variable to the channel variable stack, without removing any previously set value. 01010 * \note Will lock the channel. 01011 */ 01012 void pbx_builtin_pushvar_helper(struct ast_channel *chan, const char *name, const char *value); 01013 01014 /*! 01015 * \brief Add a variable to the channel variable stack, removing the most recently set value for the same name. 01016 * \note Will lock the channel. May also be used to set a channel dialplan function to a particular value. 01017 * \see ast_func_write 01018 * \return -1 if the dialplan function fails to be set 01019 * \version 1.8 changed the function to return an error code 01020 */ 01021 int pbx_builtin_setvar_helper(struct ast_channel *chan, const char *name, const char *value); 01022 01023 /*! 01024 * \brief Retrieve the value of a builtin variable or variable from the channel variable stack. 01025 * \note Will lock the channel. 01026 */ 01027 void pbx_retrieve_variable(struct ast_channel *c, const char *var, char **ret, char *workspace, int workspacelen, struct varshead *headp); 01028 void pbx_builtin_clear_globals(void); 01029 01030 /*! 01031 * \brief Parse and set a single channel variable, where the name and value are separated with an '=' character. 01032 * \note Will lock the channel. 01033 */ 01034 int pbx_builtin_setvar(struct ast_channel *chan, const char *data); 01035 01036 /*! 01037 * \brief Parse and set multiple channel variables, where the pairs are separated by the ',' character, and name and value are separated with an '=' character. 01038 * \note Will lock the channel. 01039 */ 01040 int pbx_builtin_setvar_multiple(struct ast_channel *chan, const char *data); 01041 01042 int pbx_builtin_raise_exception(struct ast_channel *chan, const char *data); 01043 01044 /*! @name Substitution routines, using static string buffers 01045 * @{ */ 01046 void pbx_substitute_variables_helper(struct ast_channel *c, const char *cp1, char *cp2, int count); 01047 void pbx_substitute_variables_varshead(struct varshead *headp, const char *cp1, char *cp2, int count); 01048 void pbx_substitute_variables_helper_full(struct ast_channel *c, struct varshead *headp, const char *cp1, char *cp2, int cp2_size, size_t *used); 01049 /*! @} */ 01050 /*! @} */ 01051 01052 /*! @name Substitution routines, using dynamic string buffers */ 01053 01054 /*! 01055 * \param buf Result will be placed in this buffer. 01056 * \param maxlen -1 if the buffer should not grow, 0 if the buffer may grow to any size, and >0 if the buffer should grow only to that number of bytes. 01057 * \param chan Channel variables from which to extract values, and channel to pass to any dialplan functions. 01058 * \param headp If no channel is specified, a channel list from which to extract variable values 01059 * \param var Variable name to retrieve. 01060 */ 01061 const char *ast_str_retrieve_variable(struct ast_str **buf, ssize_t maxlen, struct ast_channel *chan, struct varshead *headp, const char *var); 01062 01063 /*! 01064 * \param buf Result will be placed in this buffer. 01065 * \param maxlen -1 if the buffer should not grow, 0 if the buffer may grow to any size, and >0 if the buffer should grow only to that number of bytes. 01066 * \param chan Channel variables from which to extract values, and channel to pass to any dialplan functions. 01067 * \param templ Variable template to expand. 01068 */ 01069 void ast_str_substitute_variables(struct ast_str **buf, ssize_t maxlen, struct ast_channel *chan, const char *templ); 01070 01071 /*! 01072 * \param buf Result will be placed in this buffer. 01073 * \param maxlen -1 if the buffer should not grow, 0 if the buffer may grow to any size, and >0 if the buffer should grow only to that number of bytes. 01074 * \param headp If no channel is specified, a channel list from which to extract variable values 01075 * \param templ Variable template to expand. 01076 */ 01077 void ast_str_substitute_variables_varshead(struct ast_str **buf, ssize_t maxlen, struct varshead *headp, const char *templ); 01078 01079 /*! 01080 * \param buf Result will be placed in this buffer. 01081 * \param maxlen -1 if the buffer should not grow, 0 if the buffer may grow to any size, and >0 if the buffer should grow only to that number of bytes. 01082 * \param c Channel variables from which to extract values, and channel to pass to any dialplan functions. 01083 * \param headp If no channel is specified, a channel list from which to extract variable values 01084 * \param templ Variable template to expand. 01085 * \param used Number of bytes read from the template. 01086 */ 01087 void ast_str_substitute_variables_full(struct ast_str **buf, ssize_t maxlen, struct ast_channel *c, struct varshead *headp, const char *templ, size_t *used); 01088 /*! @} */ 01089 01090 int ast_extension_patmatch(const char *pattern, const char *data); 01091 01092 /*! Set "autofallthrough" flag, if newval is <0, does not actually set. If 01093 set to 1, sets to auto fall through. If newval set to 0, sets to no auto 01094 fall through (reads extension instead). Returns previous value. */ 01095 int pbx_set_autofallthrough(int newval); 01096 01097 /*! Set "extenpatternmatchnew" flag, if newval is <0, does not actually set. If 01098 set to 1, sets to use the new Trie-based pattern matcher. If newval set to 0, sets to use 01099 the old linear-search algorithm. Returns previous value. */ 01100 int pbx_set_extenpatternmatchnew(int newval); 01101 01102 /*! Set "overrideswitch" field. If set and of nonzero length, all contexts 01103 * will be tried directly through the named switch prior to any other 01104 * matching within that context. 01105 * \since 1.6.1 01106 */ 01107 void pbx_set_overrideswitch(const char *newval); 01108 01109 /*! 01110 * \note This function will handle locking the channel as needed. 01111 */ 01112 int ast_goto_if_exists(struct ast_channel *chan, const char *context, const char *exten, int priority); 01113 01114 /*! 01115 * \note This function will handle locking the channel as needed. 01116 */ 01117 int ast_parseable_goto(struct ast_channel *chan, const char *goto_string); 01118 01119 /*! 01120 * \note This function will handle locking the channel as needed. 01121 */ 01122 int ast_async_parseable_goto(struct ast_channel *chan, const char *goto_string); 01123 01124 /*! 01125 * \note This function will handle locking the channel as needed. 01126 */ 01127 int ast_explicit_goto(struct ast_channel *chan, const char *context, const char *exten, int priority); 01128 01129 /*! 01130 * \note This function will handle locking the channel as needed. 01131 */ 01132 int ast_async_goto_if_exists(struct ast_channel *chan, const char *context, const char *exten, int priority); 01133 01134 struct ast_custom_function* ast_custom_function_find(const char *name); 01135 01136 /*! 01137 * \brief Unregister a custom function 01138 */ 01139 int ast_custom_function_unregister(struct ast_custom_function *acf); 01140 01141 /*! 01142 * \brief Register a custom function 01143 */ 01144 #define ast_custom_function_register(acf) __ast_custom_function_register(acf, ast_module_info->self) 01145 01146 /*! 01147 * \brief Register a custom function 01148 */ 01149 int __ast_custom_function_register(struct ast_custom_function *acf, struct ast_module *mod); 01150 01151 /*! 01152 * \brief Retrieve the number of active calls 01153 */ 01154 int ast_active_calls(void); 01155 01156 /*! 01157 * \brief Retrieve the total number of calls processed through the PBX since last restart 01158 */ 01159 int ast_processed_calls(void); 01160 01161 /*! 01162 * \brief executes a read operation on a function 01163 * 01164 * \param chan Channel to execute on 01165 * \param function Data containing the function call string (will be modified) 01166 * \param workspace A pointer to safe memory to use for a return value 01167 * \param len the number of bytes in workspace 01168 * 01169 * This application executes a function in read mode on a given channel. 01170 * 01171 * \retval 0 success 01172 * \retval non-zero failure 01173 */ 01174 int ast_func_read(struct ast_channel *chan, const char *function, char *workspace, size_t len); 01175 01176 /*! 01177 * \brief executes a read operation on a function 01178 * 01179 * \param chan Channel to execute on 01180 * \param function Data containing the function call string (will be modified) 01181 * \param str A dynamic string buffer into which to place the result. 01182 * \param maxlen <0 if the dynamic buffer should not grow; >0 if the dynamic buffer should be limited to that number of bytes; 0 if the dynamic buffer has no upper limit 01183 * 01184 * This application executes a function in read mode on a given channel. 01185 * 01186 * \retval 0 success 01187 * \retval non-zero failure 01188 */ 01189 int ast_func_read2(struct ast_channel *chan, const char *function, struct ast_str **str, ssize_t maxlen); 01190 01191 /*! 01192 * \brief executes a write operation on a function 01193 * 01194 * \param chan Channel to execute on 01195 * \param function Data containing the function call string (will be modified) 01196 * \param value A value parameter to pass for writing 01197 * 01198 * This application executes a function in write mode on a given channel. 01199 * 01200 * \retval 0 success 01201 * \retval non-zero failure 01202 */ 01203 int ast_func_write(struct ast_channel *chan, const char *function, const char *value); 01204 01205 /*! 01206 * \details 01207 * When looking up extensions, we can have different requests 01208 * identified by the 'action' argument, as follows. 01209 * 01210 * \note that the coding is such that the low 4 bits are the 01211 * third argument to extension_match_core. 01212 */ 01213 enum ext_match_t { 01214 E_MATCHMORE = 0x00, /* extension can match but only with more 'digits' */ 01215 E_CANMATCH = 0x01, /* extension can match with or without more 'digits' */ 01216 E_MATCH = 0x02, /* extension is an exact match */ 01217 E_MATCH_MASK = 0x03, /* mask for the argument to extension_match_core() */ 01218 E_SPAWN = 0x12, /* want to spawn an extension. Requires exact match */ 01219 E_FINDLABEL = 0x22 /* returns the priority for a given label. Requires exact match */ 01220 }; 01221 01222 #define STATUS_NO_CONTEXT 1 01223 #define STATUS_NO_EXTENSION 2 01224 #define STATUS_NO_PRIORITY 3 01225 #define STATUS_NO_LABEL 4 01226 #define STATUS_SUCCESS 5 01227 #define AST_PBX_MAX_STACK 128 01228 01229 /* request and result for pbx_find_extension */ 01230 struct pbx_find_info { 01231 #if 0 01232 const char *context; 01233 const char *exten; 01234 int priority; 01235 #endif 01236 01237 char *incstack[AST_PBX_MAX_STACK]; /* filled during the search */ 01238 int stacklen; /* modified during the search */ 01239 int status; /* set on return */ 01240 struct ast_switch *swo; /* set on return */ 01241 const char *data; /* set on return */ 01242 const char *foundcontext; /* set on return */ 01243 }; 01244 01245 struct ast_exten *pbx_find_extension(struct ast_channel *chan, 01246 struct ast_context *bypass, struct pbx_find_info *q, 01247 const char *context, const char *exten, int priority, 01248 const char *label, const char *callerid, enum ext_match_t action); 01249 01250 /*! \brief hashtable functions for contexts */ 01251 /*! @{ */ 01252 int ast_hashtab_compare_contexts(const void *ah_a, const void *ah_b); 01253 unsigned int ast_hashtab_hash_contexts(const void *obj); 01254 /*! @} */ 01255 01256 /*! 01257 * \brief Command completion for the list of installed applications. 01258 * 01259 * This can be called from a CLI command completion function that wants to 01260 * complete from the list of available applications. 01261 */ 01262 char *ast_complete_applications(const char *line, const char *word, int state); 01263 01264 #if defined(__cplusplus) || defined(c_plusplus) 01265 } 01266 #endif 01267 01268 #endif /* _ASTERISK_PBX_H */