A function to retrieve variables from an Asterisk configuration file. More...
#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/app.h"
Go to the source code of this file.
Data Structures | |
struct | config_item |
struct | configs |
Functions | |
static void | __fini_configs (void) |
static void | __init_configs (void) |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static int | config_function_read (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len) |
static int | load_module (void) |
static int | unload_module (void) |
Variables | |
static struct ast_module_info __MODULE_INFO_SECTION | __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Asterisk configuration file variable access" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } |
static struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_custom_function | config_function |
static struct configs | configs |
A function to retrieve variables from an Asterisk configuration file.
Definition in file func_config.c.
static void __fini_configs | ( | void | ) | [static] |
Definition at line 62 of file func_config.c.
{
static void __init_configs | ( | void | ) | [static] |
Definition at line 62 of file func_config.c.
{
static void __reg_module | ( | void | ) | [static] |
Definition at line 203 of file func_config.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 203 of file func_config.c.
static int config_function_read | ( | struct ast_channel * | chan, |
const char * | cmd, | ||
char * | data, | ||
char * | buf, | ||
size_t | len | ||
) | [static] |
Definition at line 64 of file func_config.c.
References AST_APP_ARG, ast_clear_flag, ast_config_destroy(), ast_config_load, ast_copy_string(), AST_DECLARE_APP_ARGS, ast_free, ast_log(), ast_malloc, AST_RWLIST_INSERT_TAIL, AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, AST_STANDARD_APP_ARGS, ast_strdupa, ast_strlen_zero(), ast_variable_retrieve(), CONFIG_FLAG_FILEUNCHANGED, CONFIG_STATUS_FILEINVALID, CONFIG_STATUS_FILEUNCHANGED, LOG_ERROR, parse(), and val.
{ struct ast_config *cfg; struct ast_flags cfg_flags = { CONFIG_FLAG_FILEUNCHANGED }; const char *val; char *parse; struct config_item *cur; AST_DECLARE_APP_ARGS(args, AST_APP_ARG(filename); AST_APP_ARG(category); AST_APP_ARG(variable); AST_APP_ARG(index); ); if (ast_strlen_zero(data)) { ast_log(LOG_ERROR, "AST_CONFIG() requires an argument\n"); return -1; } parse = ast_strdupa(data); AST_STANDARD_APP_ARGS(args, parse); if (ast_strlen_zero(args.filename)) { ast_log(LOG_ERROR, "AST_CONFIG() requires a filename\n"); return -1; } if (ast_strlen_zero(args.category)) { ast_log(LOG_ERROR, "AST_CONFIG() requires a category\n"); return -1; } if (ast_strlen_zero(args.variable)) { ast_log(LOG_ERROR, "AST_CONFIG() requires a variable\n"); return -1; } if (!(cfg = ast_config_load(args.filename, cfg_flags)) || cfg == CONFIG_STATUS_FILEINVALID) { return -1; } if (cfg == CONFIG_STATUS_FILEUNCHANGED) { /* Retrieve cfg from list */ AST_RWLIST_RDLOCK(&configs); AST_RWLIST_TRAVERSE(&configs, cur, entry) { if (!strcmp(cur->filename, args.filename)) { break; } } if (!cur) { /* At worst, we might leak an entry while upgrading locks */ AST_RWLIST_UNLOCK(&configs); AST_RWLIST_WRLOCK(&configs); if (!(cur = ast_malloc(sizeof(*cur) + strlen(args.filename) + 1))) { AST_RWLIST_UNLOCK(&configs); return -1; } strcpy(cur->filename, args.filename); ast_clear_flag(&cfg_flags, CONFIG_FLAG_FILEUNCHANGED); if (!(cfg = ast_config_load(args.filename, cfg_flags)) || cfg == CONFIG_STATUS_FILEINVALID) { ast_free(cur); AST_RWLIST_UNLOCK(&configs); return -1; } cur->cfg = cfg; AST_RWLIST_INSERT_TAIL(&configs, cur, entry); } cfg = cur->cfg; } else { /* Replace cfg in list */ AST_RWLIST_WRLOCK(&configs); AST_RWLIST_TRAVERSE(&configs, cur, entry) { if (!strcmp(cur->filename, args.filename)) { break; } } if (!cur) { if (!(cur = ast_malloc(sizeof(*cur) + strlen(args.filename) + 1))) { AST_RWLIST_UNLOCK(&configs); return -1; } strcpy(cur->filename, args.filename); cur->cfg = cfg; AST_RWLIST_INSERT_TAIL(&configs, cur, entry); } else { ast_config_destroy(cur->cfg); cur->cfg = cfg; } } if (!(val = ast_variable_retrieve(cfg, args.category, args.variable))) { ast_log(LOG_ERROR, "'%s' not found in [%s] of '%s'\n", args.variable, args.category, args.filename); AST_RWLIST_UNLOCK(&configs); return -1; } ast_copy_string(buf, val, len); /* Unlock down here, so there's no chance the struct goes away while we're using it. */ AST_RWLIST_UNLOCK(&configs); return 0; }
static int load_module | ( | void | ) | [static] |
Definition at line 198 of file func_config.c.
References ast_custom_function_register.
{ return ast_custom_function_register(&config_function); }
static int unload_module | ( | void | ) | [static] |
Definition at line 183 of file func_config.c.
References ast_config_destroy(), ast_custom_function_unregister(), ast_free, AST_RWLIST_REMOVE_HEAD, AST_RWLIST_UNLOCK, and AST_RWLIST_WRLOCK.
{ struct config_item *current; int res = ast_custom_function_unregister(&config_function); AST_RWLIST_WRLOCK(&configs); while ((current = AST_RWLIST_REMOVE_HEAD(&configs, entry))) { ast_config_destroy(current->cfg); ast_free(current); } AST_RWLIST_UNLOCK(&configs); return res; }
struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Asterisk configuration file variable access" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } [static] |
Definition at line 203 of file func_config.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 203 of file func_config.c.
struct ast_custom_function config_function [static] |
{ .name = "AST_CONFIG", .read = config_function_read, }
Definition at line 178 of file func_config.c.