Sat Aug 6 00:39:54 2011

Asterisk developer's documentation


chanvars.c File Reference

Channel Variables. More...

#include "asterisk.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "asterisk/chanvars.h"
#include "asterisk/logger.h"
#include "asterisk/strings.h"
#include "asterisk/utils.h"

Go to the source code of this file.

Functions

ast_var_tast_var_assign (const char *name, const char *value)
void ast_var_delete (struct ast_var_t *var)
const char * ast_var_full_name (const struct ast_var_t *var)
const char * ast_var_name (const struct ast_var_t *var)
const char * ast_var_value (const struct ast_var_t *var)


Detailed Description

Channel Variables.

Author:
Mark Spencer <markster@digium.com>

Definition in file chanvars.c.


Function Documentation

struct ast_var_t* ast_var_assign ( const char *  name,
const char *  value 
)

Definition at line 39 of file chanvars.c.

References ast_calloc, ast_copy_string(), and var.

Referenced by ast_cdr_copy_vars(), ast_cdr_setvar(), ast_channel_inherit_variables(), clone_variables(), dundi_lookup_local(), loopback_subst(), pbx_builtin_pushvar_helper(), and pbx_builtin_setvar_helper().

00040 {  
00041    struct ast_var_t *var;
00042    int name_len = strlen(name) + 1;
00043    int value_len = strlen(value) + 1;
00044 
00045    if (!(var = ast_calloc(sizeof(*var) + name_len + value_len, sizeof(char)))) {
00046       return NULL;
00047    }
00048 
00049    ast_copy_string(var->name, name, name_len);
00050    var->value = var->name + name_len;
00051    ast_copy_string(var->value, value, value_len);
00052    
00053    return var;
00054 }  

void ast_var_delete ( struct ast_var_t var  ) 

Definition at line 56 of file chanvars.c.

References free, and var.

Referenced by ast_cdr_free_vars(), ast_cdr_setvar(), ast_channel_free(), dundi_lookup_local(), loopback_subst(), pbx_builtin_clear_globals(), and pbx_builtin_setvar_helper().

00057 {
00058    if (var)
00059       free(var);
00060 }

const char* ast_var_full_name ( const struct ast_var_t var  ) 

Definition at line 77 of file chanvars.c.

References var.

Referenced by ast_channel_inherit_variables().

00078 {
00079    return (var ? var->name : NULL);
00080 }

const char* ast_var_name ( const struct ast_var_t var  ) 

Definition at line 62 of file chanvars.c.

References name, and var.

Referenced by ast_cdr_copy_vars(), ast_cdr_getvar_internal(), ast_cdr_serialize_variables(), ast_cdr_setvar(), ast_channel_inherit_variables(), cdr_merge_vars(), handle_show_globals(), mgcp_call(), ospauth_exec(), ospfinished_exec(), osplookup_exec(), ospnext_exec(), pbx_builtin_getvar_helper(), pbx_builtin_serialize_variables(), pbx_builtin_setvar_helper(), pbx_retrieve_variable(), sip_call(), and transmit_invite().

00063 {
00064    const char *name;
00065 
00066    if (var == NULL || (name = var->name) == NULL)
00067       return NULL;
00068    /* Return the name without the initial underscores */
00069    if (name[0] == '_') {
00070       name++;
00071       if (name[0] == '_')
00072          name++;
00073    }
00074    return name;
00075 }

const char* ast_var_value ( const struct ast_var_t var  ) 

Definition at line 82 of file chanvars.c.

References var.

Referenced by ast_cdr_copy_vars(), ast_cdr_getvar_internal(), ast_cdr_serialize_variables(), ast_channel_inherit_variables(), cdr_merge_vars(), handle_show_globals(), mgcp_call(), ospauth_exec(), ospfinished_exec(), osplookup_exec(), ospnext_exec(), pbx_builtin_getvar_helper(), pbx_builtin_serialize_variables(), pbx_retrieve_variable(), sip_call(), and transmit_invite().

00083 {
00084    return (var ? var->value : NULL);
00085 }


Generated on Sat Aug 6 00:39:54 2011 for Asterisk - the Open Source PBX by  doxygen 1.4.7