config.c File Reference

Configuration File Parser. More...

#include "asterisk.h"
#include "asterisk/paths.h"
#include "asterisk/network.h"
#include <time.h>
#include <sys/stat.h>
#include <math.h>
#include "asterisk/config.h"
#include "asterisk/cli.h"
#include "asterisk/lock.h"
#include "asterisk/utils.h"
#include "asterisk/channel.h"
#include "asterisk/app.h"
#include "asterisk/astobj2.h"
#include "asterisk/strings.h"
#include "asterisk/netsock2.h"

Include dependency graph for config.c:

Go to the source code of this file.

Data Structures
struct	ast_category
struct	ast_category_template_instance
struct	ast_comment
	Structure to keep comments for rewriting configuration files. More...
struct	ast_config
struct	ast_config_include
struct	ast_config_map
struct	cache_file_include
	Hold the mtime for config files, so if we don't need to reread our config, don't. More...
struct	cache_file_mtime
struct	cfmtime_head
struct	inclfile
struct	includes
struct	template_instance_list
Defines
#define	AST_INCLUDE_GLOB   1
#define	CB_SIZE   250
#define	COMMENT_END   "--;"
#define	COMMENT_META   ';'
#define	COMMENT_START   ";--"
#define	COMMENT_TAG   '-'
#define	MAX_INCLUDE_LEVEL   10
#define	MAX_NESTED_COMMENTS   128
#define	MIN_VARIABLE_FNAME_SPACE   40
Enumerations
enum	config_cache_attribute_enum { ATTRIBUTE_INCLUDE = 0, ATTRIBUTE_EXEC = 1 }
Functions
static void	__init_appendbuf (void)
static struct ast_comment *	ALLOC_COMMENT (struct ast_str *buffer)
static int	append_mapping (const char *name, const char *driver, const char *database, const char *table, int priority)
void	ast_category_append (struct ast_config *config, struct ast_category *category)
char *	ast_category_browse (struct ast_config *config, const char *prev)
	Goes through categories.
int	ast_category_delete (struct ast_config *cfg, const char *category)
void	ast_category_destroy (struct ast_category *cat)
struct ast_variable *	ast_category_detach_variables (struct ast_category *cat)
int	ast_category_empty (struct ast_config *cfg, const char *category)
	Removes and destroys all variables within a category.
int	ast_category_exist (const struct ast_config *config, const char *category_name)
	Check for category duplicates.
struct ast_variable *	ast_category_first (struct ast_category *cat)
	given a pointer to a category, return the root variable.
struct ast_category *	ast_category_get (const struct ast_config *config, const char *category_name)
	Retrieve a category if it exists.
void	ast_category_insert (struct ast_config *config, struct ast_category *cat, const char *match)
	Inserts new category.
struct ast_category *	ast_category_new (const char *name, const char *in_file, int lineno)
	Create a category structure.
void	ast_category_rename (struct ast_category *cat, const char *name)
struct ast_variable *	ast_category_root (struct ast_config *config, char *cat)
	returns the root ast_variable of a config
int	ast_check_realtime (const char *family)
	Check if realtime engine is configured for family.
static void	ast_comment_destroy (struct ast_comment **comment)
void	ast_config_destroy (struct ast_config *cfg)
	Destroys a config.
int	ast_config_engine_deregister (struct ast_config_engine *del)
	Deregister config engine.
int	ast_config_engine_register (struct ast_config_engine *new)
	Register config engine.
struct ast_category *	ast_config_get_current_category (const struct ast_config *cfg)
	Retrieve the current category name being built.
struct ast_config *	ast_config_internal_load (const char *filename, struct ast_config *cfg, struct ast_flags flags, const char *suggested_include_file, const char *who_asked)
struct ast_config *	ast_config_load2 (const char *filename, const char *who_asked, struct ast_flags flags)
	Load a config file.
struct ast_config *	ast_config_new (void)
	Create a new base configuration structure.
const char *	ast_config_option (struct ast_config *cfg, const char *cat, const char *var)
	Retrieve a configuration variable within the configuration set.
void	ast_config_set_current_category (struct ast_config *cfg, const struct ast_category *cat)
	Set the category within the configuration as being current.
int	ast_config_text_file_save (const char *configfile, const struct ast_config *cfg, const char *generator)
int	ast_destroy_realtime (const char *family, const char *keyfield, const char *lookup,...)
	Destroy realtime configuration.
static void	ast_destroy_template_list (struct ast_category *cat)
struct ast_config_include *	ast_include_find (struct ast_config *conf, const char *included_file)
struct ast_config_include *	ast_include_new (struct ast_config *conf, const char *from_file, const char *included_file, int is_exec, const char *exec_file, int from_lineno, char *real_included_file_name, int real_included_file_name_size)
void	ast_include_rename (struct ast_config *conf, const char *from_file, const char *to_file)
static void	ast_includes_destroy (struct ast_config_include *incls)
struct ast_variable *	ast_load_realtime (const char *family,...)
	Retrieve realtime configuration.
struct ast_variable *	ast_load_realtime_all (const char *family,...)
static struct ast_variable *	ast_load_realtime_helper (const char *family, va_list ap)
struct ast_config *	ast_load_realtime_multientry (const char *family,...)
	Retrieve realtime configuration.
int	ast_parse_arg (const char *arg, enum ast_parse_flags flags, void *p_result,...)
	Helper function to parse arguments See documentation in config.h.
char *	ast_realtime_decode_chunk (char *chunk)
int	ast_realtime_enabled (void)
	Check if there's any realtime engines loaded.
char *	ast_realtime_encode_chunk (struct ast_str **dest, ssize_t maxlen, const char *chunk)
	Encodes a chunk of data for realtime.
int	ast_realtime_require_field (const char *family,...)
	Inform realtime what fields that may be stored.
int	ast_store_realtime (const char *family,...)
	Create realtime configuration.
int	ast_unload_realtime (const char *family)
	Release any resources cached for a realtime family.
int	ast_update2_realtime (const char *family,...)
	Update realtime configuration.
int	ast_update_realtime (const char *family, const char *keyfield, const char *lookup,...)
	Update realtime configuration.
void	ast_variable_append (struct ast_category *category, struct ast_variable *variable)
struct ast_variable *	ast_variable_browse (const struct ast_config *config, const char *category)
	Goes through variables.
int	ast_variable_delete (struct ast_category *category, const char *variable, const char *match, const char *line)
static void	ast_variable_destroy (struct ast_variable *doomed)
void	ast_variable_insert (struct ast_category *category, struct ast_variable *variable, const char *line)
static void	ast_variable_move (struct ast_variable *dst_var, struct ast_variable *src_var)
struct ast_variable *	ast_variable_new (const char *name, const char *value, const char *filename)
const char *	ast_variable_retrieve (const struct ast_config *config, const char *category, const char *variable)
	Gets a variable.
int	ast_variable_update (struct ast_category *category, const char *variable, const char *value, const char *match, unsigned int object)
	Update variable value within a config.
void	ast_variables_destroy (struct ast_variable *v)
	Free variable list.
struct ast_variable *	ast_variables_dup (struct ast_variable *var)
	Duplicate variable list.
static struct ast_category *	category_get (const struct ast_config *config, const char *category_name, int ignored)
static void	CB_ADD (struct ast_str **cb, const char *str)
static void	CB_ADD_LEN (struct ast_str **cb, const char *str, int len)
static void	CB_RESET (struct ast_str *cb, struct ast_str *llb)
static struct cache_file_mtime *	cfmtime_new (const char *filename, const char *who_asked)
static void	clear_config_maps (void)
static void	config_cache_attribute (const char *configfile, enum config_cache_attribute_enum attrtype, const char *filename, const char *who_asked)
static void	config_shutdown (void)
static struct ast_config *	config_text_file_load (const char *database, const char *table, const char *filename, struct ast_config *cfg, struct ast_flags flags, const char *suggested_include_file, const char *who_asked)
int	config_text_file_save (const char *configfile, const struct ast_config *cfg, const char *generator)
static int	count_linefeeds (char *str)
static int	count_linefeeds_in_comments (struct ast_comment *x)
static struct ast_config_engine *	find_engine (const char *family, int priority, char *database, int dbsiz, char *table, int tabsiz)
	Find realtime engine for realtime family.
static void	gen_header (FILE *f1, const char *configfile, const char *fn, const char *generator)
static char *	handle_cli_config_list (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char *	handle_cli_config_reload (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char *	handle_cli_core_show_config_mappings (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static int	hash_string (const void *obj, const int flags)
static int	hashtab_compare_strings (void *a, void *b, int flags)
static void	inclfile_destroy (void *obj)
static void	inherit_category (struct ast_category *new, const struct ast_category *base)
static int	init_appendbuf (void *data)
static void	insert_leading_blank_lines (FILE *fp, struct inclfile *fi, struct ast_comment *precomments, int lineno)
static void	move_variables (struct ast_category *old, struct ast_category *new)
static struct ast_category *	next_available_category (struct ast_category *cat)
static int	process_text_line (struct ast_config *cfg, struct ast_category **cat, char *buf, int lineno, const char *configfile, struct ast_flags flags, struct ast_str *comment_buffer, struct ast_str *lline_buffer, const char *suggested_include_file, struct ast_category **last_cat, struct ast_variable **last_var, const char *who_asked)
	parse one line in the configuration.
int	read_config_maps (void)
	Exposed re-initialization method for core process.
int	register_config_cli (void)
	Exposed initialization method for core process.
static struct inclfile *	set_fn (char *fn, int fn_size, const char *file, const char *configfile, struct ao2_container *fileset)
static struct ast_variable *	variable_clone (const struct ast_variable *old)
Variables
static struct ast_threadstorage	appendbuf = { .once = PTHREAD_ONCE_INIT , .key_init = __init_appendbuf , .custom_init = init_appendbuf , }
static struct ast_cli_entry	cli_config []
static struct ast_config_engine *	config_engine_list
static ast_mutex_t	config_lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, 1 }
static struct ast_config_map *	config_maps
static char *	extconfig_conf = "extconfig.conf"
static struct ast_config_engine	text_file_engine

---

Detailed Description

Configuration File Parser.

Author:

Mark Spencer <markster@digium.com>

Includes the Asterisk Realtime API - ARA See http://wiki.asterisk.org

Definition in file config.c.

---

Define Documentation

#define AST_INCLUDE_GLOB   1

Definition at line 44 of file config.c.

#define CB_SIZE   250

Definition at line 110 of file config.c.

Referenced by config_text_file_load().

#define COMMENT_END   "--;"

Definition at line 58 of file config.c.

#define COMMENT_META   ';'

Definition at line 59 of file config.c.

Referenced by config_text_file_load().

#define COMMENT_START   ";--"

Definition at line 57 of file config.c.

#define COMMENT_TAG   '-'

Definition at line 60 of file config.c.

Referenced by config_text_file_load().

#define MAX_INCLUDE_LEVEL   10

Definition at line 198 of file config.c.

Referenced by ast_config_new().

#define MAX_NESTED_COMMENTS   128

Definition at line 56 of file config.c.

Referenced by config_text_file_load().

#define MIN_VARIABLE_FNAME_SPACE   40

Define the minimum filename space to reserve for each ast_variable in case the filename is renamed later by ast_include_rename().

Definition at line 67 of file config.c.

Referenced by ast_variable_new().

---

Enumeration Type Documentation

enum config_cache_attribute_enum

Enumerator:

ATTRIBUTE_INCLUDE
ATTRIBUTE_EXEC

Definition at line 1058 of file config.c.

                                 {
   ATTRIBUTE_INCLUDE = 0,
   ATTRIBUTE_EXEC = 1,
};

---

Function Documentation

static void __init_appendbuf

(

void

)

[static]

Definition at line 107 of file config.c.

{

static struct ast_comment* ALLOC_COMMENT

(

struct ast_str *

buffer

)

[static, read]

Definition at line 134 of file config.c.

References ast_calloc, ast_str_buffer(), ast_str_strlen(), and ast_comment::cmt.

Referenced by config_text_file_load(), and process_text_line().

{ 
   struct ast_comment *x = NULL;
   if (!buffer || !ast_str_strlen(buffer)) {
      return NULL;
   }
   if ((x = ast_calloc(1, sizeof(*x) + ast_str_strlen(buffer) + 1))) {
      strcpy(x->cmt, ast_str_buffer(buffer)); /* SAFE */
   }
   return x;
}

static int append_mapping	(	const char *	name,
		const char *	driver,
		const char *	database,
		const char *	table,
		int	priority
	)			[static]

Definition at line 2102 of file config.c.

References ast_calloc, ast_verb, config_maps, ast_config_map::database, ast_config_map::driver, map, ast_config_map::name, ast_config_map::next, ast_config_map::priority, ast_config_map::stuff, and ast_config_map::table.

Referenced by read_config_maps().

{
   struct ast_config_map *map;
   char *dst;
   int length;

   length = sizeof(*map);
   length += strlen(name) + 1;
   length += strlen(driver) + 1;
   length += strlen(database) + 1;
   if (table)
      length += strlen(table) + 1;

   if (!(map = ast_calloc(1, length)))
      return -1;

   dst = map->stuff; /* writable space starts here */
   map->name = strcpy(dst, name);
   dst += strlen(dst) + 1;
   map->driver = strcpy(dst, driver);
   dst += strlen(dst) + 1;
   map->database = strcpy(dst, database);
   if (table) {
      dst += strlen(dst) + 1;
      map->table = strcpy(dst, table);
   }
   map->priority = priority;
   map->next = config_maps;
   config_maps = map;

   ast_verb(2, "Binding %s to %s/%s/%s\n", map->name, map->driver, map->database, map->table ? map->table : map->name);

   return 0;
}

void ast_category_append	(	struct ast_config *	config,
		struct ast_category *	category
	)

Definition at line 687 of file config.c.

References ast_config::current, ast_config::include_level, ast_category::include_level, ast_config::last, ast_category::next, and ast_config::root.

Referenced by add_cfg_entry(), add_rt_multi_cfg_entry(), config_curl(), config_ldap(), config_odbc(), config_pgsql(), handle_updates(), process_text_line(), realtime_directory(), realtime_multi_curl(), realtime_multi_ldap(), realtime_multi_odbc(), realtime_multi_pgsql(), and write_password_to_file().

{
   if (config->last)
      config->last->next = category;
   else
      config->root = category;
   category->include_level = config->include_level;
   config->last = category;
   config->current = category;
}

char* ast_category_browse	(	struct ast_config *	config,
		const char *	prev
	)

Goes through categories.

Parameters:

	config	Which config structure you wish to "browse"
	prev	A pointer to a previous category.

This function is kind of non-intuitive in it's use. To begin, one passes NULL as the second argument. It will return a pointer to the string of the first category in the file. From here on after, one must then pass the previous usage's return value as the second pointer, and it will return a pointer to the category name afterwards.

Return values:

	a	category on success
	NULL	on failure/no-more-categories

Definition at line 774 of file config.c.

References ast_config::last_browse, ast_category::name, ast_category::next, next_available_category(), and ast_config::root.

Referenced by __init_manager(), __queues_show(), action_getconfig(), action_getconfigjson(), action_listcategories(), actual_load_config(), aji_load_config(), ast_cli_perms_init(), AST_LIST_HEAD_NOLOCK(), complete_sipnotify(), conf_exec(), config_load(), find_queue_by_name_rt(), find_realtime(), get_insecure_variable_from_config(), get_insecure_variable_from_sipregs(), gtalk_load_config(), iax_provision_reload(), jingle_load_config(), load_config(), load_indications(), load_module(), load_moh_classes(), load_odbc_config(), load_pktccops_config(), load_tech_calendars(), misdn_cfg_init(), osp_load(), parse_config(), pbx_load_config(), pbx_load_users(), process_config(), queues_data_provider_get(), read_agent_config(), realtime_directory(), realtime_switch_common(), reload(), reload_config(), reload_followme(), reload_queue_rules(), reload_queues(), search_directory(), set_config(), setup_dahdi_int(), show_users_realtime(), sla_load_config(), update_realtime_members(), and vm_change_password().

{  
   struct ast_category *cat;

   if (!prev) {
      /* First time browse. */
      cat = config->root;
   } else if (config->last_browse && (config->last_browse->name == prev)) {
      /* Simple last browse found. */
      cat = config->last_browse->next;
   } else {
      /*
       * Config changed since last browse.
       *
       * First try cheap last browse search. (Rebrowsing a different
       * previous category?)
       */
      for (cat = config->root; cat; cat = cat->next) {
         if (cat->name == prev) {
            /* Found it. */
            cat = cat->next;
            break;
         }
      }
      if (!cat) {
         /*
          * Have to do it the hard way. (Last category was deleted and
          * re-added?)
          */
         for (cat = config->root; cat; cat = cat->next) {
            if (!strcasecmp(cat->name, prev)) {
               /* Found it. */
               cat = cat->next;
               break;
            }
         }
      }
   }
   
   if (cat)
      cat = next_available_category(cat);

   config->last_browse = cat;
   return (cat) ? cat->name : NULL;
}

int ast_category_delete	(	struct ast_config *	cfg,
		const char *	category
	)

Definition at line 940 of file config.c.

References ast_category_destroy(), ast_config::last, ast_category::next, and ast_config::root.

Referenced by handle_updates().

{
   struct ast_category *prev=NULL, *cat;

   cat = cfg->root;
   while (cat) {
      if (cat->name == category) {
         if (prev) {
            prev->next = cat->next;
            if (cat == cfg->last)
               cfg->last = prev;
         } else {
            cfg->root = cat->next;
            if (cat == cfg->last)
               cfg->last = NULL;
         }
         ast_category_destroy(cat);
         return 0;
      }
      prev = cat;
      cat = cat->next;
   }

   prev = NULL;
   cat = cfg->root;
   while (cat) {
      if (!strcasecmp(cat->name, category)) {
         if (prev) {
            prev->next = cat->next;
            if (cat == cfg->last)
               cfg->last = prev;
         } else {
            cfg->root = cat->next;
            if (cat == cfg->last)
               cfg->last = NULL;
         }
         ast_category_destroy(cat);
         return 0;
      }
      prev = cat;
      cat = cat->next;
   }
   return -1;
}

void ast_category_destroy

(

struct ast_category *

cat

)

Definition at line 726 of file config.c.

References ast_comment_destroy(), ast_destroy_template_list(), ast_free, ast_variables_destroy(), ast_category::file, ast_category::last, ast_category::precomments, ast_category::root, ast_category::sameline, and ast_category::trailing.

Referenced by add_cfg_entry(), ast_category_delete(), ast_category_new(), ast_config_destroy(), process_text_line(), realtime_multi_odbc(), and write_password_to_file().

{
   ast_variables_destroy(cat->root);
   cat->root = NULL;
   cat->last = NULL;
   ast_comment_destroy(&cat->precomments);
   ast_comment_destroy(&cat->sameline);
   ast_comment_destroy(&cat->trailing);
   ast_destroy_template_list(cat);
   ast_free(cat->file);
   ast_free(cat);
}

struct ast_variable* ast_category_detach_variables

(

struct ast_category *

cat

)

[read]

Definition at line 820 of file config.c.

References ast_category::last, and ast_category::root.

Referenced by realtime_switch_common().

{
   struct ast_variable *v;

   v = cat->root;
   cat->root = NULL;
   cat->last = NULL;

   return v;
}

int ast_category_empty	(	struct ast_config *	cfg,
		const char *	category
	)

Removes and destroys all variables within a category.

Return values:

	0	if the category was found and emptied
	-1	if the category was not found

Definition at line 985 of file config.c.

References ast_variables_destroy(), ast_category::last, ast_category::name, ast_category::next, ast_category::root, and ast_config::root.

Referenced by handle_updates().

{
   struct ast_category *cat;

   for (cat = cfg->root; cat; cat = cat->next) {
      if (!strcasecmp(cat->name, category))
         continue;
      ast_variables_destroy(cat->root);
      cat->root = NULL;
      cat->last = NULL;
      return 0;
   }

   return -1;
}

int ast_category_exist	(	const struct ast_config *	config,
		const char *	category_name
	)

Check for category duplicates.

Parameters:

	config	which config to use
	category_name	name of the category you're looking for

This will search through the categories within a given config file for a match.

Returns:

non-zero if found

Definition at line 682 of file config.c.

References ast_category_get().

{
   return !!ast_category_get(config, category_name);
}

struct ast_variable* ast_category_first

(

struct ast_category *

cat

)

[read]

given a pointer to a category, return the root variable.

return the first var of a category

Definition at line 760 of file config.c.

References ast_category::root.

Referenced by process_text_line().

{
   return (cat) ? cat->root : NULL;
}

struct ast_category* ast_category_get	(	const struct ast_config *	config,
		const char *	category_name
	)			[read]

Retrieve a category if it exists.

Parameters:

	config	which config to use
	category_name	name of the category you're looking for

This will search through the categories within a given config file for a match.

Return values:

	pointer	to category if found
	NULL	if not.

Definition at line 677 of file config.c.

References category_get().

Referenced by ast_category_exist(), ast_category_root(), ast_variable_browse(), handle_updates(), realtime_directory(), realtime_switch_common(), vm_change_password(), and vm_forwardoptions().

{
   return category_get(config, category_name, 0);
}

void ast_category_insert	(	struct ast_config *	config,
		struct ast_category *	cat,
		const char *	match
	)

Inserts new category.

Parameters:

	config	which config to use
	cat	newly created category to insert
	match	which category to insert above

This function is used to insert a new category above another category matching the match parameter.

Definition at line 698 of file config.c.

References ast_category::name, ast_category::next, and ast_config::root.

Referenced by handle_updates().

{
   struct ast_category *cur_category;

   if (!cat || !match)
      return;
   if (!strcasecmp(config->root->name, match)) {
      cat->next = config->root;
      config->root = cat;
      return;
   } 
   for (cur_category = config->root; cur_category; cur_category = cur_category->next) {
      if (!strcasecmp(cur_category->next->name, match)) {
         cat->next = cur_category->next;
         cur_category->next = cat;
         break;
      }
   }
}

struct ast_category* ast_category_new	(	const char *	name,
		const char *	in_file,
		int	lineno
	)			[read]

Create a category structure.

Definition at line 641 of file config.c.

References ast_calloc, ast_category_destroy(), ast_copy_string(), ast_strdup, ast_category::file, ast_category::lineno, and ast_category::name.

Referenced by add_cfg_entry(), add_rt_multi_cfg_entry(), config_curl(), config_ldap(), config_odbc(), config_pgsql(), handle_updates(), process_text_line(), realtime_directory(), realtime_multi_curl(), realtime_multi_ldap(), realtime_multi_odbc(), realtime_multi_pgsql(), and write_password_to_file().

{
   struct ast_category *category;

   category = ast_calloc(1, sizeof(*category));
   if (!category) {
      return NULL;
   }
   category->file = ast_strdup(in_file);
   if (!category->file) {
      ast_category_destroy(category);
      return NULL;
   }
   ast_copy_string(category->name, name, sizeof(category->name));
   category->lineno = lineno; /* if you don't know the lineno, set it to 999999 or something real big */
   return category;
}

void ast_category_rename	(	struct ast_category *	cat,
		const char *	name
	)

Definition at line 831 of file config.c.

References ast_copy_string(), and ast_category::name.

Referenced by handle_updates(), realtime_multi_curl(), realtime_multi_ldap(), realtime_multi_odbc(), and realtime_multi_pgsql().

{
   ast_copy_string(cat->name, name, sizeof(cat->name));
}

struct ast_variable* ast_category_root	(	struct ast_config *	config,
		char *	cat
	)			[read]

returns the root ast_variable of a config

Parameters:

	config	pointer to an ast_config data structure
	cat	name of the category for which you want the root

Returns:

the category specified

Definition at line 765 of file config.c.

References ast_category_get(), and ast_category::root.

Referenced by get_insecure_variable_from_config(), and get_insecure_variable_from_sipregs().

{
   struct ast_category *category = ast_category_get(config, cat);

   if (category)
      return category->root;
   return NULL;
}

int ast_check_realtime

(

const char *

family

)

Check if realtime engine is configured for family.

Parameters:

family

which family/config to be checked

Returns:

1 if family is configured in realtime and engine exists

Definition at line 2427 of file config.c.

References ast_realtime_enabled(), and find_engine().

Referenced by __queues_show(), _sip_show_peer(), _sip_show_peers(), ast_queue_log(), close_mailbox(), copy_plain_file(), destroy_association(), find_realtime_gw(), handle_response_peerpoke(), handle_voicemail_show_users(), leave_voicemail(), load_module(), load_moh_classes(), local_ast_moh_start(), logger_queue_rt_start(), realtime_peer(), realtime_update_peer(), rename_file(), sip_poke_noanswer(), sip_show_settings(), and vm_delete().

{
   struct ast_config_engine *eng;
   if (!ast_realtime_enabled()) {
      return 0;   /* There are no engines at all so fail early */
   }

   eng = find_engine(family, 1, NULL, 0, NULL, 0);
   if (eng)
      return 1;
   return 0;
}

static void ast_comment_destroy

(

struct ast_comment **

comment

)

[static]

Definition at line 512 of file config.c.

References ast_free, and ast_comment::next.

Referenced by ast_category_destroy(), and ast_variable_destroy().

{
   struct ast_comment *n, *p;

   for (p = *comment; p; p = n) {
      n = p->next;
      ast_free(p);
   }

   *comment = NULL;
}

void ast_config_destroy

(

struct ast_config *

config

)

Destroys a config.

Parameters:

config

pointer to config data structure

Free memory associated with a given config

Definition at line 1001 of file config.c.

References ast_category_destroy(), ast_free, ast_includes_destroy(), ast_config::includes, ast_category::next, and ast_config::root.

Referenced by __ast_http_load(), __ast_http_post_load(), __ast_udptl_reload(), __init_manager(), __queues_show(), _dsp_init(), action_getconfig(), action_getconfigjson(), action_listcategories(), action_updateconfig(), adsi_load(), advanced_options(), aji_load_config(), ast_cli_perms_init(), ast_config_load2(), ast_load_realtime_multientry(), ast_plc_reload(), ast_readconfig(), conf_exec(), config_function_read(), config_load(), config_module(), directory_exec(), do_reload(), festival_exec(), find_conf(), find_realtime(), get_insecure_variable_from_sippeers(), get_insecure_variable_from_sipregs(), gtalk_load_config(), handle_cli_dialplan_save(), iax_provision_reload(), init_logger_chain(), initialize_cc_max_requests(), jingle_load_config(), load_config(), load_config_meetme(), load_indications(), load_module(), load_modules(), load_moh_classes(), load_odbc_config(), load_pktccops_config(), load_realtime_queue(), make_email_file(), misdn_cfg_init(), odbc_load_module(), osp_load(), parse_config(), pbx_load_config(), pbx_load_users(), play_message(), prep_email_sub_vars(), private_enum_init(), queues_data_provider_get(), read_agent_config(), read_config_maps(), read_password_from_file(), realtime_directory(), realtime_multi_handler(), realtime_multi_pgsql(), realtime_switch_common(), reload(), reload_config(), reload_followme(), reload_module(), reload_queue_rules(), reload_queues(), rtp_reload(), run_startup_commands(), set_config(), setup_dahdi_int(), show_users_realtime(), sla_load_config(), smdi_load(), tds_load_module(), unload_module(), update_realtime_members(), vm_change_password(), vm_forwardoptions(), and write_password_to_file().

{
   struct ast_category *cat, *catn;

   if (!cfg)
      return;

   ast_includes_destroy(cfg->includes);

   cat = cfg->root;
   while (cat) {
      catn = cat;
      cat = cat->next;
      ast_category_destroy(catn);
   }
   ast_free(cfg);
}

int ast_config_engine_deregister

(

struct ast_config_engine *

del

)

Deregister config engine.

Return values:

0

Always

Definition at line 2237 of file config.c.

References ast_mutex_lock, ast_mutex_unlock, config_lock, last, and ast_config_engine::next.

Referenced by unload_module().

{
   struct ast_config_engine *ptr, *last=NULL;

   ast_mutex_lock(&config_lock);

   for (ptr = config_engine_list; ptr; ptr=ptr->next) {
      if (ptr == del) {
         if (last)
            last->next = ptr->next;
         else
            config_engine_list = ptr->next;
         break;
      }
      last = ptr;
   }

   ast_mutex_unlock(&config_lock);

   return 0;
}

int ast_config_engine_register

(

struct ast_config_engine *

newconfig

)

Register config engine.

Return values:

1

Always

Definition at line 2218 of file config.c.

References ast_log(), ast_mutex_lock, ast_mutex_unlock, config_lock, LOG_NOTICE, and ast_config_engine::next.

Referenced by load_module().

{
   struct ast_config_engine *ptr;

   ast_mutex_lock(&config_lock);

   if (!config_engine_list) {
      config_engine_list = new;
   } else {
      for (ptr = config_engine_list; ptr->next; ptr=ptr->next);
      ptr->next = new;
   }

   ast_mutex_unlock(&config_lock);
   ast_log(LOG_NOTICE,"Registered Config Engine %s\n", new->name);

   return 1;
}

struct ast_category* ast_config_get_current_category

(

const struct ast_config *

cfg

)

[read]

Retrieve the current category name being built.

API for backend configuration engines while building a configuration set.

Definition at line 1019 of file config.c.

References ast_config::current.

Referenced by config_curl(), config_odbc(), and config_text_file_load().

{
   return cfg->current;
}

struct ast_config* ast_config_internal_load	(	const char *	filename,
		struct ast_config *	cfg,
		struct ast_flags	flags,
		const char *	suggested_include_file,
		const char *	who_asked
	)			[read]

Definition at line 2299 of file config.c.

References ast_log(), ast_test_flag, CONFIG_FLAG_NOREALTIME, CONFIG_STATUS_FILEINVALID, CONFIG_STATUS_FILEUNCHANGED, db, find_engine(), ast_config::include_level, ast_config_engine::load_func, LOG_WARNING, ast_config::max_include_level, and table.

Referenced by add_cfg_entry(), ast_config_load2(), config_curl(), config_ldap(), config_odbc(), config_pgsql(), process_text_line(), and read_config_maps().

{
   char db[256];
   char table[256];
   struct ast_config_engine *loader = &text_file_engine;
   struct ast_config *result; 

   /* The config file itself bumps include_level by 1 */
   if (cfg->max_include_level > 0 && cfg->include_level == cfg->max_include_level + 1) {
      ast_log(LOG_WARNING, "Maximum Include level (%d) exceeded\n", cfg->max_include_level);
      return NULL;
   }

   cfg->include_level++;

   if (!ast_test_flag(&flags, CONFIG_FLAG_NOREALTIME) && config_engine_list) {
      struct ast_config_engine *eng;

      eng = find_engine(filename, 1, db, sizeof(db), table, sizeof(table));


      if (eng && eng->load_func) {
         loader = eng;
      } else {
         eng = find_engine("global", 1, db, sizeof(db), table, sizeof(table));
         if (eng && eng->load_func)
            loader = eng;
      }
   }

   result = loader->load_func(db, table, filename, cfg, flags, suggested_include_file, who_asked);

   if (result && result != CONFIG_STATUS_FILEINVALID && result != CONFIG_STATUS_FILEUNCHANGED)
      result->include_level--;
   else if (result != CONFIG_STATUS_FILEINVALID)
      cfg->include_level--;

   return result;
}

struct ast_config* ast_config_load2	(	const char *	filename,
		const char *	who_asked,
		struct ast_flags	flags
	)			[read]

Load a config file.

Parameters:

	filename	path of file to open. If no preceding '/' character, path is considered relative to AST_CONFIG_DIR
	who_asked	The module which is making this request.
	flags	Optional flags: CONFIG_FLAG_WITHCOMMENTS - load the file with comments intact; CONFIG_FLAG_FILEUNCHANGED - check the file mtime and return CONFIG_STATUS_FILEUNCHANGED if the mtime is the same; or CONFIG_FLAG_NOCACHE - don't cache file mtime (main purpose of this option is to save memory on temporary files).

Create a config structure from a given configuration file.

Returns:

an ast_config data structure on success

Return values:

NULL

on error

Definition at line 2339 of file config.c.

References ast_config_destroy(), ast_config_internal_load(), ast_config_new(), CONFIG_STATUS_FILEINVALID, and CONFIG_STATUS_FILEUNCHANGED.

Referenced by __ast_http_load(), __ast_http_post_load(), __ast_udptl_reload(), __init_manager(), _dsp_init(), action_getconfig(), action_getconfigjson(), action_listcategories(), action_updateconfig(), ast_cli_perms_init(), ast_readconfig(), do_reload(), iax_provision_reload(), init_logger_chain(), initialize_cc_max_requests(), load_config(), load_indications(), load_modules(), misdn_cfg_init(), private_enum_init(), rtp_reload(), run_startup_commands(), and set_config().

{
   struct ast_config *cfg;
   struct ast_config *result;

   cfg = ast_config_new();
   if (!cfg)
      return NULL;

   result = ast_config_internal_load(filename, cfg, flags, "", who_asked);
   if (!result || result == CONFIG_STATUS_FILEUNCHANGED || result == CONFIG_STATUS_FILEINVALID)
      ast_config_destroy(cfg);

   return result;
}

struct ast_config* ast_config_new

(

void

)

[read]

Create a new base configuration structure.

Definition at line 852 of file config.c.

References ast_calloc, config, MAX_INCLUDE_LEVEL, and ast_config::max_include_level.

Referenced by ast_config_load2(), load_realtime_queue(), read_config_maps(), realtime_multi_curl(), realtime_multi_handler(), realtime_multi_ldap(), realtime_multi_odbc(), realtime_multi_pgsql(), setup_dahdi_int(), and write_password_to_file().

{
   struct ast_config *config;

   if ((config = ast_calloc(1, sizeof(*config))))
      config->max_include_level = MAX_INCLUDE_LEVEL;
   return config;
}

const char* ast_config_option	(	struct ast_config *	cfg,
		const char *	cat,
		const char *	var
	)

Retrieve a configuration variable within the configuration set.

Retrieves the named variable var within category cat of configuration set cfg. If not found, attempts to retrieve the named variable var from within category general.

Returns:

Value of var, or NULL if not found.

Definition at line 582 of file config.c.

References ast_variable_retrieve().

Referenced by actual_load_config(), AST_LIST_HEAD_NOLOCK(), and pbx_load_users().

{
   const char *tmp;
   tmp = ast_variable_retrieve(cfg, cat, var);
   if (!tmp) {
      tmp = ast_variable_retrieve(cfg, "general", var);
   }
   return tmp;
}

void ast_config_set_current_category	(	struct ast_config *	cfg,
		const struct ast_category *	cat
	)

Set the category within the configuration as being current.

API for backend configuration engines while building a configuration set.

Definition at line 1024 of file config.c.

References ast_config::current.

{
   /* cast below is just to silence compiler warning about dropping "const" */
   cfg->current = (struct ast_category *) cat;
}

int ast_config_text_file_save	(	const char *	configfile,
		const struct ast_config *	cfg,
		const char *	generator
	)

Definition at line 1832 of file config.c.

References ao2_container_alloc, ao2_ref, ast_debug, AST_LIST_EMPTY, AST_LIST_LAST, AST_LIST_TRAVERSE, ast_verb, ast_variable::blanklines, ast_comment::cmt, errno, ast_config_include::exec, ast_config_include::exec_file, f, ast_variable::file, ast_category::file, gen_header(), hash_string(), hashtab_compare_strings(), ast_category::ignored, ast_config_include::include_location_file, ast_config_include::include_location_lineno, ast_config_include::included_file, ast_config::includes, insert_leading_blank_lines(), ast_category_template_instance::inst, ast_variable::lineno, ast_category::lineno, ast_variable::name, ast_category_template_instance::name, ast_category::name, ast_category::next, ast_variable::next, ast_comment::next, ast_config_include::next, ast_variable::object, option_debug, ast_config_include::output, ast_variable::precomments, ast_category::precomments, ast_category::root, ast_config::root, ast_variable::sameline, ast_category::sameline, set_fn(), ast_category::template_instances, ast_variable::trailing, ast_category::trailing, ast_variable::value, and var.

Referenced by action_updateconfig(), config_text_file_save(), vm_change_password(), vm_forwardoptions(), and write_password_to_file().

{
   FILE *f;
   char fn[PATH_MAX];
   struct ast_variable *var;
   struct ast_category *cat;
   struct ast_comment *cmt;
   struct ast_config_include *incl;
   int blanklines = 0;
   struct ao2_container *fileset;
   struct inclfile *fi;

   fileset = ao2_container_alloc(1023, hash_string, hashtab_compare_strings);
   if (!fileset) {
      /* Container creation failed. */
      return -1;
   }

   /* reset all the output flags, in case this isn't our first time saving this data */
   for (incl = cfg->includes; incl; incl = incl->next) {
      incl->output = 0;
   }

   /* go thru all the inclusions and make sure all the files involved (configfile plus all its inclusions)
      are all truncated to zero bytes and have that nice header*/
   for (incl = cfg->includes; incl; incl = incl->next) {
      if (!incl->exec) { /* leave the execs alone -- we'll write out the #exec directives, but won't zero out the include files or exec files*/
         /* normally, fn is just set to incl->included_file, prepended with config dir if relative */
         fi = set_fn(fn, sizeof(fn), incl->included_file, configfile, fileset);
         f = fopen(fn, "w");
         if (f) {
            gen_header(f, configfile, fn, generator);
            fclose(f); /* this should zero out the file */
         } else {
            ast_debug(1, "Unable to open for writing: %s\n", fn);
            ast_verb(2, "Unable to write %s (%s)", fn, strerror(errno));
         }
         if (fi) {
            ao2_ref(fi, -1);
         }
      }
   }

   /* just set fn to absolute ver of configfile */
   fi = set_fn(fn, sizeof(fn), 0, configfile, fileset);
   if (
#ifdef __CYGWIN__
      (f = fopen(fn, "w+"))
#else
      (f = fopen(fn, "w"))
#endif
      ) {
      ast_verb(2, "Saving '%s': ", fn);
      gen_header(f, configfile, fn, generator);
      cat = cfg->root;
      fclose(f);
      if (fi) {
         ao2_ref(fi, -1);
      }

      /* from here out, we open each involved file and concat the stuff we need to add to the end and immediately close... */
      /* since each var, cat, and associated comments can come from any file, we have to be
         mobile, and open each file, print, and close it on an entry-by-entry basis */

      while (cat) {
         fi = set_fn(fn, sizeof(fn), cat->file, configfile, fileset);
         f = fopen(fn, "a");
         if (!f) {
            ast_debug(1, "Unable to open for writing: %s\n", fn);
            ast_verb(2, "Unable to write %s (%s)", fn, strerror(errno));
            if (fi) {
               ao2_ref(fi, -1);
            }
            ao2_ref(fileset, -1);
            return -1;
         }

         /* dump any includes that happen before this category header */
         for (incl=cfg->includes; incl; incl = incl->next) {
            if (strcmp(incl->include_location_file, cat->file) == 0){
               if (cat->lineno > incl->include_location_lineno && !incl->output) {
                  if (incl->exec)
                     fprintf(f,"#exec \"%s\"\n", incl->exec_file);
                  else
                     fprintf(f,"#include \"%s\"\n", incl->included_file);
                  incl->output = 1;
               }
            }
         }

         insert_leading_blank_lines(f, fi, cat->precomments, cat->lineno);
         /* Dump section with any appropriate comment */
         for (cmt = cat->precomments; cmt; cmt=cmt->next) {
            char *cmtp = cmt->cmt;
            while (cmtp && *cmtp == ';' && *(cmtp+1) == '!') {
               char *cmtp2 = strchr(cmtp+1, '\n');
               if (cmtp2)
                  cmtp = cmtp2+1;
               else cmtp = 0;
            }
            if (cmtp)
               fprintf(f,"%s", cmtp);
         }
         fprintf(f, "[%s]", cat->name);
         if (cat->ignored || !AST_LIST_EMPTY(&cat->template_instances)) {
            fprintf(f, "(");
            if (cat->ignored) {
               fprintf(f, "!");
            }
            if (cat->ignored && !AST_LIST_EMPTY(&cat->template_instances)) {
               fprintf(f, ",");
            }
            if (!AST_LIST_EMPTY(&cat->template_instances)) {
               struct ast_category_template_instance *x;
               AST_LIST_TRAVERSE(&cat->template_instances, x, next) {
                  fprintf(f,"%s",x->name);
                  if (x != AST_LIST_LAST(&cat->template_instances))
                     fprintf(f,",");
               }
            }
            fprintf(f, ")");
         }
         for(cmt = cat->sameline; cmt; cmt=cmt->next)
         {
            fprintf(f,"%s", cmt->cmt);
         }
         if (!cat->sameline)
            fprintf(f,"\n");
         for (cmt = cat->trailing; cmt; cmt=cmt->next) {
            if (cmt->cmt[0] != ';' || cmt->cmt[1] != '!')
               fprintf(f,"%s", cmt->cmt);
         }
         fclose(f);
         if (fi) {
            ao2_ref(fi, -1);
         }

         var = cat->root;
         while (var) {
            struct ast_category_template_instance *x;
            int found = 0;
            AST_LIST_TRAVERSE(&cat->template_instances, x, next) {
               struct ast_variable *v;
               for (v = x->inst->root; v; v = v->next) {
                  if (!strcasecmp(var->name, v->name) && !strcmp(var->value, v->value)) {
                     found = 1;
                     break;
                  }
               }
               if (found)
                  break;
            }
            if (found) {
               var = var->next;
               continue;
            }
            fi = set_fn(fn, sizeof(fn), var->file, configfile, fileset);
            f = fopen(fn, "a");
            if (!f) {
               ast_debug(1, "Unable to open for writing: %s\n", fn);
               ast_verb(2, "Unable to write %s (%s)", fn, strerror(errno));
               if (fi) {
                  ao2_ref(fi, -1);
               }
               ao2_ref(fileset, -1);
               return -1;
            }

            /* dump any includes that happen before this category header */
            for (incl=cfg->includes; incl; incl = incl->next) {
               if (strcmp(incl->include_location_file, var->file) == 0){
                  if (var->lineno > incl->include_location_lineno && !incl->output) {
                     if (incl->exec)
                        fprintf(f,"#exec \"%s\"\n", incl->exec_file);
                     else
                        fprintf(f,"#include \"%s\"\n", incl->included_file);
                     incl->output = 1;
                  }
               }
            }

            insert_leading_blank_lines(f, fi, var->precomments, var->lineno);
            for (cmt = var->precomments; cmt; cmt=cmt->next) {
               if (cmt->cmt[0] != ';' || cmt->cmt[1] != '!')
                  fprintf(f,"%s", cmt->cmt);
            }
            if (var->sameline)
               fprintf(f, "%s %s %s  %s", var->name, (var->object ? "=>" : "="), var->value, var->sameline->cmt);
            else
               fprintf(f, "%s %s %s\n", var->name, (var->object ? "=>" : "="), var->value);
            for (cmt = var->trailing; cmt; cmt=cmt->next) {
               if (cmt->cmt[0] != ';' || cmt->cmt[1] != '!')
                  fprintf(f,"%s", cmt->cmt);
            }
            if (var->blanklines) {
               blanklines = var->blanklines;
               while (blanklines--)
                  fprintf(f, "\n");
            }

            fclose(f);
            if (fi) {
               ao2_ref(fi, -1);
            }

            var = var->next;
         }
         cat = cat->next;
      }
      if (!option_debug)
         ast_verb(2, "Saved\n");
   } else {
      ast_debug(1, "Unable to open for writing: %s\n", fn);
      ast_verb(2, "Unable to write (%s)", strerror(errno));
      if (fi) {
         ao2_ref(fi, -1);
      }
      ao2_ref(fileset, -1);
      return -1;
   }

   /* Now, for files with trailing #include/#exec statements,
      we have to make sure every entry is output */
   for (incl=cfg->includes; incl; incl = incl->next) {
      if (!incl->output) {
         /* open the respective file */
         fi = set_fn(fn, sizeof(fn), incl->include_location_file, configfile, fileset);
         f = fopen(fn, "a");
         if (!f) {
            ast_debug(1, "Unable to open for writing: %s\n", fn);
            ast_verb(2, "Unable to write %s (%s)", fn, strerror(errno));
            if (fi) {
               ao2_ref(fi, -1);
            }
            ao2_ref(fileset, -1);
            return -1;
         }

         /* output the respective include */
         if (incl->exec)
            fprintf(f,"#exec \"%s\"\n", incl->exec_file);
         else
            fprintf(f,"#include \"%s\"\n", incl->included_file);
         fclose(f);
         incl->output = 1;
         if (fi) {
            ao2_ref(fi, -1);
         }
      }
   }
   ao2_ref(fileset, -1); /* this should destroy the hash container */

   return 0;
}

int ast_destroy_realtime	(	const char *	family,
		const char *	keyfield,
		const char *	lookup,
			...
	)

Destroy realtime configuration.

Parameters:

	family	which family/config to be destroyed
	keyfield	which field to use as the key
	lookup	which value to look for in the key field to match the entry.

This function is used to destroy an entry in realtime configuration space. Additional params are used as keys.

Returns:

Number of rows affected, or -1 on error.

Note:

You should use the constant SENTINEL to terminate arguments, in order to preserve cross-platform compatibility.

Definition at line 2590 of file config.c.

References db, ast_config_engine::destroy_func, find_engine(), and table.

Referenced by cli_realtime_destroy(), function_realtime_readdestroy(), leave_voicemail(), and vm_delete().

{
   struct ast_config_engine *eng;
   int res = -1, i;
   char db[256];
   char table[256];
   va_list ap;

   va_start(ap, lookup);
   for (i = 1; ; i++) {
      if ((eng = find_engine(family, i, db, sizeof(db), table, sizeof(table)))) {
         if (eng->destroy_func && !(res = eng->destroy_func(db, table, keyfield, lookup, ap))) {
            break;
         }
      } else {
         break;
      }
   }
   va_end(ap);

   return res;
}

static void ast_destroy_template_list

(

struct ast_category *

cat

)

[static]

Definition at line 718 of file config.c.

References ast_free, AST_LIST_REMOVE_HEAD, and ast_category::template_instances.

Referenced by ast_category_destroy().

{
   struct ast_category_template_instance *x;

   while ((x = AST_LIST_REMOVE_HEAD(&cat->template_instances, next)))
      ast_free(x);
}

struct ast_config_include* ast_include_find	(	struct ast_config *	conf,
		const char *	included_file
	)			[read]

Definition at line 464 of file config.c.

References ast_config_include::included_file, ast_config::includes, and ast_config_include::next.

Referenced by ast_include_new().

{
   struct ast_config_include *x;
   for (x=conf->includes;x;x=x->next) {
      if (strcmp(x->included_file,included_file) == 0)
         return x;
   }
   return 0;
}

struct ast_config_include* ast_include_new	(	struct ast_config *	conf,
		const char *	from_file,
		const char *	included_file,
		int	is_exec,
		const char *	exec_file,
		int	from_lineno,
		char *	real_included_file_name,
		int	real_included_file_name_size
	)			[read]

Definition at line 324 of file config.c.

References ast_calloc, ast_include_find(), ast_includes_destroy(), ast_log(), ast_strdup, ast_strlen_zero(), ast_config::includes, and LOG_WARNING.

Referenced by process_text_line().

{
   /* a file should be included ONCE. Otherwise, if one of the instances is changed,
    * then all be changed. -- how do we know to include it? -- Handling modified 
    * instances is possible, I'd have
    * to create a new master for each instance. */
   struct ast_config_include *inc;
   struct stat statbuf;
   
   inc = ast_include_find(conf, included_file);
   if (inc) {
      do {
         inc->inclusion_count++;
         snprintf(real_included_file_name, real_included_file_name_size, "%s~~%d", included_file, inc->inclusion_count);
      } while (stat(real_included_file_name, &statbuf) == 0);
      ast_log(LOG_WARNING,"'%s', line %d:  Same File included more than once! This data will be saved in %s if saved back to disk.\n", from_file, from_lineno, real_included_file_name);
   } else
      *real_included_file_name = 0;
   
   inc = ast_calloc(1,sizeof(struct ast_config_include));
   if (!inc) {
      return NULL;
   }
   inc->include_location_file = ast_strdup(from_file);
   inc->include_location_lineno = from_lineno;
   if (!ast_strlen_zero(real_included_file_name))
      inc->included_file = ast_strdup(real_included_file_name);
   else
      inc->included_file = ast_strdup(included_file);
   
   inc->exec = is_exec;
   if (is_exec)
      inc->exec_file = ast_strdup(exec_file);

   if (!inc->include_location_file
      || !inc->included_file
      || (is_exec && !inc->exec_file)) {
      ast_includes_destroy(inc);
      return NULL;
   }

   /* attach this new struct to the conf struct */
   inc->next = conf->includes;
   conf->includes = inc;
   
   return inc;
}

void ast_include_rename	(	struct ast_config *	conf,
		const char *	from_file,
		const char *	to_file
	)

Definition at line 372 of file config.c.

References ast_free, ast_strdup, ast_variable_destroy(), ast_variable_move(), ast_variable_new(), ast_variable::file, ast_category::file, ast_config_include::include_location_file, ast_config::includes, ast_category::last, ast_variable::name, ast_variable::next, ast_category::next, ast_config_include::next, ast_category::root, ast_config::root, str, and ast_variable::value.

Referenced by action_updateconfig().

{
   struct ast_config_include *incl;
   struct ast_category *cat;
   char *str;

   int from_len = strlen(from_file);
   int to_len = strlen(to_file);
   
   if (strcmp(from_file, to_file) == 0) /* no use wasting time if the name is the same */
      return;
   
   /* the manager code allows you to read in one config file, then
    * write it back out under a different name. But, the new arrangement
    * ties output lines to the file name. So, before you try to write
    * the config file to disk, better riffle thru the data and make sure
    * the file names are changed.
    */
   /* file names are on categories, includes (of course), and on variables. So,
    * traverse all this and swap names */

   for (incl = conf->includes; incl; incl=incl->next) {
      if (strcmp(incl->include_location_file,from_file) == 0) {
         if (from_len >= to_len)
            strcpy(incl->include_location_file, to_file);
         else {
            /* Keep the old filename if the allocation fails. */
            str = ast_strdup(to_file);
            if (str) {
               ast_free(incl->include_location_file);
               incl->include_location_file = str;
            }
         }
      }
   }
   for (cat = conf->root; cat; cat = cat->next) {
      struct ast_variable **prev;
      struct ast_variable *v;
      struct ast_variable *new_var;

      if (strcmp(cat->file,from_file) == 0) {
         if (from_len >= to_len)
            strcpy(cat->file, to_file);
         else {
            /* Keep the old filename if the allocation fails. */
            str = ast_strdup(to_file);
            if (str) {
               ast_free(cat->file);
               cat->file = str;
            }
         }
      }
      for (prev = &cat->root, v = cat->root; v; prev = &v->next, v = v->next) {
         if (strcmp(v->file, from_file)) {
            continue;
         }

         /*
          * Calculate actual space available.  The file string is
          * intentionally stuffed before the name string just so we can
          * do this.
          */
         if (to_len < v->name - v->file) {
            /* The new name will fit in the available space. */
            str = (char *) v->file;/* Stupid compiler complains about discarding qualifiers even though I used a cast. */
            strcpy(str, to_file);/* SAFE */
            continue;
         }

         /* Keep the old filename if the allocation fails. */
         new_var = ast_variable_new(v->name, v->value, to_file);
         if (!new_var) {
            continue;
         }

         /* Move items from the old list node to the replacement node. */
         ast_variable_move(new_var, v);

         /* Replace the old node in the list with the new node. */
         new_var->next = v->next;
         if (cat->last == v) {
            cat->last = new_var;
         }
         *prev = new_var;

         ast_variable_destroy(v);

         v = new_var;
      }
   }
}

static void ast_includes_destroy

(

struct ast_config_include *

incls

)

[static]

Definition at line 739 of file config.c.

References ast_free, ast_config_include::exec_file, ast_config_include::include_location_file, ast_config_include::included_file, and ast_config_include::next.

Referenced by ast_config_destroy(), and ast_include_new().

{
   struct ast_config_include *incl,*inclnext;
   
   for (incl=incls; incl; incl = inclnext) {
      inclnext = incl->next;
      ast_free(incl->include_location_file);
      ast_free(incl->exec_file);
      ast_free(incl->included_file);
      ast_free(incl);
   }
}

struct ast_variable* ast_load_realtime	(	const char *	family,
			...
	)			[read]

Retrieve realtime configuration.

Parameters:

family

which family/config to lookup

This will use builtin configuration backends to look up a particular entity in realtime and return a variable list of its parameters.

Note:

Unlike the variables in ast_config, the resulting list of variables MUST be freed with ast_variables_destroy() as there is no container.

The difference between these two calls is that ast_load_realtime excludes fields whose values are NULL, while ast_load_realtime_all loads all columns.

You should use the constant SENTINEL to terminate arguments, in order to preserve cross-platform compatibility.

Definition at line 2388 of file config.c.

References ast_load_realtime_helper(), ast_strlen_zero(), ast_variable_destroy(), ast_variable::next, and ast_variable::value.

Referenced by conf_run(), copy_plain_file(), find_conf_realtime(), find_realtime(), find_realtime_gw(), find_user_realtime(), leave_queue(), load_realtime_queue(), local_ast_moh_start(), queue_function_queuewaitingcount(), realtime_alias(), realtime_peer(), realtime_peer_by_addr(), realtime_peer_by_name(), realtime_peer_get_sippeer_helper(), realtime_switch_common(), realtime_user(), and rt_extend_conf().

{
   struct ast_variable *res;
   struct ast_variable *cur;
   struct ast_variable **prev;
   va_list ap;

   va_start(ap, family);
   res = ast_load_realtime_helper(family, ap);
   va_end(ap);

   /* Filter the list. */
   prev = &res;
   cur = res;
   while (cur) {
      if (ast_strlen_zero(cur->value)) {
         /* Eliminate empty entries */
         struct ast_variable *next;

         next = cur->next;
         *prev = next;
         ast_variable_destroy(cur);
         cur = next;
      } else {
         /* Make blank entries empty and keep them. */
         if (cur->value[0] == ' ' && cur->value[1] == '\0') {
            char *vptr = (char *) cur->value;

            vptr[0] = '\0';
         }

         prev = &cur->next;
         cur = cur->next;
      }
   }
   return res;
}

struct ast_variable* ast_load_realtime_all	(	const char *	family,
			...
	)			[read]

Definition at line 2376 of file config.c.

References ast_load_realtime_helper().

Referenced by cli_realtime_load(), function_realtime_read(), function_realtime_readdestroy(), and realtimefield_read().

{
   struct ast_variable *res;
   va_list ap;

   va_start(ap, family);
   res = ast_load_realtime_helper(family, ap);
   va_end(ap);

   return res;
}

static struct ast_variable* ast_load_realtime_helper	(	const char *	family,
		va_list	ap
	)			[static, read]

Definition at line 2355 of file config.c.

References db, find_engine(), ast_config_engine::realtime_func, and table.

Referenced by ast_load_realtime(), and ast_load_realtime_all().

{
   struct ast_config_engine *eng;
   char db[256];
   char table[256];
   struct ast_variable *res=NULL;
   int i;

   for (i = 1; ; i++) {
      if ((eng = find_engine(family, i, db, sizeof(db), table, sizeof(table)))) {
         if (eng->realtime_func && (res = eng->realtime_func(db, table, ap))) {
            return res;
         }
      } else {
         return NULL;
      }
   }

   return res;
}

struct ast_config* ast_load_realtime_multientry	(	const char *	family,
			...
	)			[read]

Retrieve realtime configuration.

Parameters:

family

which family/config to lookup

This will use builtin configuration backends to look up a particular entity in realtime and return a variable list of its parameters. Unlike the ast_load_realtime, this function can return more than one entry and is thus stored inside a traditional ast_config structure rather than just returning a linked list of variables.

Returns:

An ast_config with one or more results

Return values:

NULL

Error or no results returned

Note:

You should use the constant SENTINEL to terminate arguments, in order to preserve cross-platform compatibility.

Definition at line 2490 of file config.c.

References ast_config_destroy(), db, find_engine(), ast_config_engine::realtime_multi_func, ast_config::root, and table.

Referenced by __queues_show(), conf_exec(), find_realtime(), get_insecure_variable_from_sippeers(), get_insecure_variable_from_sipregs(), load_realtime_queue(), queues_data_provider_get(), realtime_directory(), realtime_switch_common(), show_users_realtime(), and update_realtime_members().

{
   struct ast_config_engine *eng;
   char db[256];
   char table[256];
   struct ast_config *res = NULL;
   va_list ap;
   int i;

   va_start(ap, family);
   for (i = 1; ; i++) {
      if ((eng = find_engine(family, i, db, sizeof(db), table, sizeof(table)))) {
         if (eng->realtime_multi_func && (res = eng->realtime_multi_func(db, table, ap))) {
            /* If we were returned an empty cfg, destroy it and return NULL */
            if (!res->root) {
               ast_config_destroy(res);
               res = NULL;
            }
            break;
         }
      } else {
         break;
      }
   }
   va_end(ap);

   return res;
}

int ast_parse_arg	(	const char *	arg,
		enum ast_parse_flags	flags,
		void *	p_result,
			...
	)

Helper function to parse arguments See documentation in config.h.

The argument parsing routine.

Definition at line 2645 of file config.c.

References ast_debug, ast_gethostbyname(), ast_inet_ntoa(), ast_skip_blanks(), ast_sockaddr_parse(), ast_sockaddr_stringify(), ast_strdupa, ast_strlen_zero(), errno, hp, INT32_MAX, INT32_MIN, PARSE_ADDR, PARSE_DEFAULT, PARSE_DOUBLE, PARSE_IN_RANGE, PARSE_INADDR, PARSE_INT32, PARSE_OUT_RANGE, PARSE_PORT_FORBID, PARSE_PORT_IGNORE, PARSE_PORT_MASK, PARSE_PORT_REQUIRE, PARSE_TYPE, PARSE_UINT32, and UINT32_MAX.

Referenced by __ast_http_load(), ast_tls_read_conf(), check_via_response(), gtalk_load_config(), and reload_config().

{
   va_list ap;
   int error = 0;

   va_start(ap, p_result);
   switch (flags & PARSE_TYPE) {
   case PARSE_INT32:
   {
      long int x = 0;
      int32_t *result = p_result;
      int32_t def = result ? *result : 0, high = INT32_MAX, low = INT32_MIN;
      char *endptr = NULL;

      /* optional arguments: default value and/or (low, high) */
      if (flags & PARSE_DEFAULT) {
         def = va_arg(ap, int32_t);
      }
      if (flags & (PARSE_IN_RANGE | PARSE_OUT_RANGE)) {
         low = va_arg(ap, int32_t);
         high = va_arg(ap, int32_t);
      }
      if (ast_strlen_zero(arg)) {
         error = 1;
         goto int32_done;
      }
      errno = 0;
      x = strtol(arg, &endptr, 0);
      if (*endptr || errno || x < INT32_MIN || x > INT32_MAX) {
         /* Parse error, or type out of int32_t bounds */
         error = 1;
         goto int32_done;
      }
      error = (x < low) || (x > high);
      if (flags & PARSE_OUT_RANGE) {
         error = !error;
      }
int32_done:
      if (result) {
         *result  = error ? def : x;
      }

      ast_debug(3, "extract int from [%s] in [%d, %d] gives [%ld](%d)\n",
            arg, low, high, result ? *result : x, error);
      break;
   }

   case PARSE_UINT32:
   {
      unsigned long int x = 0;
      uint32_t *result = p_result;
      uint32_t def = result ? *result : 0, low = 0, high = UINT32_MAX;
      char *endptr = NULL;

      /* optional argument: first default value, then range */
      if (flags & PARSE_DEFAULT) {
         def = va_arg(ap, uint32_t);
      }
      if (flags & (PARSE_IN_RANGE|PARSE_OUT_RANGE)) {
         /* range requested, update bounds */
         low = va_arg(ap, uint32_t);
         high = va_arg(ap, uint32_t);
      }

      if (ast_strlen_zero(arg)) {
         error = 1;
         goto uint32_done;
      }
      /* strtoul will happilly and silently negate negative numbers */
      arg = ast_skip_blanks(arg);
      if (*arg == '-') {
         error = 1;
         goto uint32_done;
      }
      errno = 0;
      x = strtoul(arg, &endptr, 0);
      if (*endptr || errno || x > UINT32_MAX) {
         error = 1;
         goto uint32_done;
      }
      error = (x < low) || (x > high);
      if (flags & PARSE_OUT_RANGE) {
         error = !error;
      }
uint32_done:
      if (result) {
         *result  = error ? def : x;
      }
      ast_debug(3, "extract uint from [%s] in [%u, %u] gives [%lu](%d)\n",
            arg, low, high, result ? *result : x, error);
      break;
   }

   case PARSE_DOUBLE:
   {
      double *result = p_result;
      double x = 0, def = result ? *result : 0, low = -HUGE_VAL, high = HUGE_VAL;
      char *endptr = NULL;

      /* optional argument: first default value, then range */
      if (flags & PARSE_DEFAULT) {
         def = va_arg(ap, double);
      }
      if (flags & (PARSE_IN_RANGE | PARSE_OUT_RANGE)) {
         /* range requested, update bounds */
         low = va_arg(ap, double);
         high = va_arg(ap, double);
      }
      if (ast_strlen_zero(arg)) {
         error = 1;
         goto double_done;
      }
      errno = 0;
      x = strtod(arg, &endptr);
      if (*endptr || errno == ERANGE) {
         error = 1;
         goto double_done;
      }
      error = (x < low) || (x > high);
      if (flags & PARSE_OUT_RANGE) {
         error = !error;
      }
double_done:
      if (result) {
         *result = error ? def : x;
      }
      ast_debug(3, "extract double from [%s] in [%f, %f] gives [%f](%d)\n",
            arg, low, high, result ? *result : x, error);
      break;
   }
   case PARSE_ADDR:
       {
      struct ast_sockaddr *addr = (struct ast_sockaddr *)p_result;

      if (!ast_sockaddr_parse(addr, arg, flags & PARSE_PORT_MASK)) {
         error = 1;
      }

      ast_debug(3, "extract addr from %s gives %s(%d)\n",
           arg, ast_sockaddr_stringify(addr), error);

      break;
       }
   case PARSE_INADDR:   /* TODO Remove this (use PARSE_ADDR instead). */
       {
      char *port, *buf;
      struct sockaddr_in _sa_buf;   /* buffer for the result */
      struct sockaddr_in *sa = p_result ?
         (struct sockaddr_in *)p_result : &_sa_buf;
      /* default is either the supplied value or the result itself */
      struct sockaddr_in *def = (flags & PARSE_DEFAULT) ?
         va_arg(ap, struct sockaddr_in *) : sa;
      struct hostent *hp;
      struct ast_hostent ahp;

      memset(&_sa_buf, '\0', sizeof(_sa_buf)); /* clear buffer */
      /* duplicate the string to strip away the :port */
      port = ast_strdupa(arg);
      buf = strsep(&port, ":");
      sa->sin_family = AF_INET;  /* assign family */
      /*
       * honor the ports flag setting, assign default value
       * in case of errors or field unset.
       */
      flags &= PARSE_PORT_MASK; /* the only flags left to process */
      if (port) {
         if (flags == PARSE_PORT_FORBID) {
            error = 1;  /* port was forbidden */
            sa->sin_port = def->sin_port;
         } else if (flags == PARSE_PORT_IGNORE)
            sa->sin_port = def->sin_port;
         else /* accept or require */
            sa->sin_port = htons(strtol(port, NULL, 0));
      } else {
         sa->sin_port = def->sin_port;
         if (flags == PARSE_PORT_REQUIRE)
            error = 1;
      }
      /* Now deal with host part, even if we have errors before. */
      hp = ast_gethostbyname(buf, &ahp);
      if (hp)  /* resolved successfully */
         memcpy(&sa->sin_addr, hp->h_addr, sizeof(sa->sin_addr));
      else {
         error = 1;
         sa->sin_addr = def->sin_addr;
      }
      ast_debug(3,
         "extract inaddr from [%s] gives [%s:%d](%d)\n",
         arg, ast_inet_ntoa(sa->sin_addr),
         ntohs(sa->sin_port), error);
         break;
       }
   }
   va_end(ap);
   return error;
}

char* ast_realtime_decode_chunk

(

char *

chunk

)

Definition at line 2613 of file config.c.

Referenced by realtime_multi_pgsql(), and realtime_pgsql().

{
   char *orig = chunk;
   for (; *chunk; chunk++) {
      if (*chunk == '^' && strchr("0123456789ABCDEFabcdef", chunk[1]) && strchr("0123456789ABCDEFabcdef", chunk[2])) {
         sscanf(chunk + 1, "%02hhX", chunk);
         memmove(chunk + 1, chunk + 3, strlen(chunk + 3) + 1);
      }
   }
   return orig;
}

int ast_realtime_enabled

(

void

)

Check if there's any realtime engines loaded.

Definition at line 2441 of file config.c.

References config_maps.

Referenced by action_coresettings(), ast_check_realtime(), and handle_show_settings().

{
   return config_maps ? 1 : 0;
}

char* ast_realtime_encode_chunk	(	struct ast_str **	dest,
		ssize_t	maxlen,
		const char *	chunk
	)

Encodes a chunk of data for realtime.

Parameters:

	dest	Destination buffer
	maxlen	Length passed through to ast_str_* functions
	chunk	Source data to be encoded

Returns:

Buffer within dest

Since:

1.8

Definition at line 2625 of file config.c.

References ast_str_append(), ast_str_buffer(), ast_str_reset(), and ast_str_set().

{
   if (!strchr(chunk, ';') && !strchr(chunk, '^')) {
      ast_str_set(dest, maxlen, "%s", chunk);
   } else {
      ast_str_reset(*dest);
      for (; *chunk; chunk++) {
         if (strchr(";^", *chunk)) {
            ast_str_append(dest, maxlen, "^%02hhX", *chunk);
         } else {
            ast_str_append(dest, maxlen, "%c", *chunk);
         }
      }
   }
   return ast_str_buffer(*dest);
}

int ast_realtime_require_field	(	const char *	family,
			...
	)

Inform realtime what fields that may be stored.

Since:

1.6.1

Parameters:

family

which family/config is referenced

This will inform builtin configuration backends that particular fields may be updated during the use of that configuration section. This is mainly to be used during startup routines, to ensure that various fields exist in the backend. The backends may take various actions, such as creating new fields in the data store or warning the administrator that new fields may need to be created, in order to ensure proper function.

The arguments are specified in groups of 3: column name, column type, and column size. The column types are specified as integer constants, defined by the enum require_type. Note that the size is specified as the number of equivalent character fields that a field may take up, even if a field is otherwise specified as an integer type. This is due to the fact that some fields have historically been specified as character types, even if they contained integer values.

A family should always specify its fields to the minimum necessary requirements to fulfill all possible values (within reason; for example, a timeout value may reasonably be specified as an INTEGER2, with size 5. Even though values above 32767 seconds are possible, they are unlikely to be useful, and we should not complain about that size).

Return values:

	0	Required fields met specified standards
	-1	One or more fields was missing or insufficient

Note:

You should use the constant SENTINEL to terminate arguments, in order to preserve cross-platform compatibility.

Definition at line 2446 of file config.c.

References db, find_engine(), ast_config_engine::require_func, and table.

Referenced by ast_queue_log(), change_password_realtime(), conf_run(), load_module(), and logger_queue_rt_start().

{
   struct ast_config_engine *eng;
   char db[256];
   char table[256];
   va_list ap;
   int res = -1, i;

   va_start(ap, family);
   for (i = 1; ; i++) {
      if ((eng = find_engine(family, i, db, sizeof(db), table, sizeof(table)))) {
         /* If the require succeeds, it returns 0. */
         if (eng->require_func && !(res = eng->require_func(db, table, ap))) {
            break;
         }
      } else {
         break;
      }
   }
   va_end(ap);

   return res;
}

int ast_store_realtime	(	const char *	family,
			...
	)

Create realtime configuration.

Parameters:

family

which family/config to be created

This function is used to create a parameter in realtime configuration space.

Returns:

Number of rows affected, or -1 on error.

Note:

On the MySQL engine only, for reasons of backwards compatibility, the return value is the insert ID. This value is nonportable and may be changed in a future version to match the other engines.

You should use the constant SENTINEL to terminate arguments, in order to preserve cross-platform compatibility.

Definition at line 2566 of file config.c.

References db, find_engine(), ast_config_engine::store_func, and table.

Referenced by ast_queue_log(), cli_realtime_store(), copy_plain_file(), function_realtime_store(), and leave_voicemail().

{
   struct ast_config_engine *eng;
   int res = -1, i;
   char db[256];
   char table[256];
   va_list ap;

   va_start(ap, family);
   for (i = 1; ; i++) {
      if ((eng = find_engine(family, i, db, sizeof(db), table, sizeof(table)))) {
         /* If the store succeeds, it returns 0. */
         if (eng->store_func && !(res = eng->store_func(db, table, ap))) {
            break;
         }
      } else {
         break;
      }
   }
   va_end(ap);

   return res;
}

int ast_unload_realtime

(

const char *

family

)

Release any resources cached for a realtime family.

Since:

1.6.1

Parameters:

family

which family/config to destroy

Various backends may cache attributes about a realtime data storage facility; on reload, a front end resource may request to purge that cache.

Return values:

	0	If any cache was purged
	-1	If no cache was found

Definition at line 2470 of file config.c.

References db, find_engine(), table, and ast_config_engine::unload_func.

Referenced by __unload_module(), load_config(), logger_queue_init(), reload(), reload_config(), reload_logger(), and unload_module().

{
   struct ast_config_engine *eng;
   char db[256];
   char table[256];
   int res = -1, i;

   for (i = 1; ; i++) {
      if ((eng = find_engine(family, i, db, sizeof(db), table, sizeof(table)))) {
         if (eng->unload_func) {
            /* Do this for ALL engines */
            res = eng->unload_func(db, table);
         }
      } else {
         break;
      }
   }
   return res;
}

int ast_update2_realtime	(	const char *	family,
			...
	)

Update realtime configuration.

Parameters:

family

which family/config to be updated

This function is used to update a parameter in realtime configuration space. It includes the ability to lookup a row based upon multiple key criteria. As a result, this function includes two sentinel values, one to terminate lookup values and the other to terminate the listing of fields to update.

Returns:

Number of rows affected, or -1 on error.

Note:

You should use the constant SENTINEL to terminate arguments, in order to preserve cross-platform compatibility.

Definition at line 2543 of file config.c.

References db, find_engine(), table, and ast_config_engine::update2_func.

Referenced by change_password_realtime(), and cli_realtime_update2().

{
   struct ast_config_engine *eng;
   int res = -1, i;
   char db[256];
   char table[256];
   va_list ap;

   va_start(ap, family);
   for (i = 1; ; i++) {
      if ((eng = find_engine(family, i, db, sizeof(db), table, sizeof(table)))) {
         if (eng->update2_func && !(res = eng->update2_func(db, table, ap))) {
            break;
         }
      } else {
         break;
      }
   }
   va_end(ap);

   return res;
}

int ast_update_realtime	(	const char *	family,
		const char *	keyfield,
		const char *	lookup,
			...
	)

Update realtime configuration.

Parameters:

	family	which family/config to be updated
	keyfield	which field to use as the key
	lookup	which value to look for in the key field to match the entry.

This function is used to update a parameter in realtime configuration space.

Returns:

Number of rows affected, or -1 on error.

Note:

You should use the constant SENTINEL to terminate arguments, in order to preserve cross-platform compatibility.

Definition at line 2519 of file config.c.

References db, find_engine(), table, and ast_config_engine::update_func.

Referenced by cli_realtime_update(), conf_run(), destroy_association(), function_realtime_write(), handle_response_peerpoke(), leave_voicemail(), realtime_update_peer(), rename_file(), rt_extend_conf(), sip_poke_noanswer(), and update_realtime_member_field().

{
   struct ast_config_engine *eng;
   int res = -1, i;
   char db[256];
   char table[256];
   va_list ap;

   va_start(ap, lookup);
   for (i = 1; ; i++) {
      if ((eng = find_engine(family, i, db, sizeof(db), table, sizeof(table)))) {
         /* If the update succeeds, it returns 0. */
         if (eng->update_func && !(res = eng->update_func(db, table, keyfield, lookup, ap))) {
            break;
         }
      } else {
         break;
      }
   }
   va_end(ap);

   return res;
}

void ast_variable_append	(	struct ast_category *	category,
		struct ast_variable *	variable
	)

Definition at line 475 of file config.c.

References ast_category::last, ast_variable::next, and ast_category::root.

Referenced by add_cfg_entry(), add_rt_multi_cfg_entry(), config_curl(), config_ldap(), config_odbc(), config_pgsql(), handle_updates(), inherit_category(), move_variables(), process_text_line(), realtime_directory(), realtime_multi_curl(), realtime_multi_ldap(), realtime_multi_odbc(), realtime_multi_pgsql(), vm_change_password(), and write_password_to_file().

{
   if (!variable)
      return;
   if (category->last)
      category->last->next = variable;
   else
      category->root = variable;
   category->last = variable;
   while (category->last->next)
      category->last = category->last->next;
}

struct ast_variable* ast_variable_browse	(	const struct ast_config *	config,
		const char *	category
	)			[read]

Goes through variables.

Somewhat similar in intent as the ast_category_browse. List variables of config file category

Return values:

	ast_variable	list on success
	NULL	on failure

Definition at line 565 of file config.c.

References ast_category_get(), ast_config::last_browse, ast_category::name, and ast_category::root.

Referenced by __ast_http_load(), __ast_http_post_load(), __init_manager(), _dsp_init(), action_getconfig(), action_getconfigjson(), actual_load_config(), adsi_load(), aji_load_config(), ast_cli_perms_init(), AST_LIST_HEAD_NOLOCK(), ast_plc_reload(), ast_readconfig(), ast_variable_retrieve(), build_calendar(), build_device(), build_event_channel(), caldav_load_calendar(), conf_exec(), config_load(), config_module(), do_say(), ewscal_load_calendar(), exchangecal_load_calendar(), find_conf(), gtalk_load_config(), handle_cli_dialplan_save(), iax_template_parse(), ical_load_calendar(), init_logger_chain(), jingle_load_config(), load_config(), load_module(), load_modules(), load_moh_classes(), load_odbc_config(), load_pktccops_config(), misdn_cfg_init(), odbc_load_module(), osp_create_provider(), parse_config(), parse_tone_zone(), pbx_load_config(), process_config(), read_agent_config(), read_config_maps(), reload(), reload_config(), reload_followme(), reload_module(), reload_queue_rules(), reload_single_queue(), run_startup_commands(), set_config(), setup_dahdi_int(), show_users_realtime(), sip_cli_notify(), sla_build_station(), sla_build_trunk(), smdi_load(), store_config(), and tds_load_module().

{
   struct ast_category *cat = NULL;

   if (!category) {
      return NULL;
   }

   if (config->last_browse && (config->last_browse->name == category)) {
      cat = config->last_browse;
   } else {
      cat = ast_category_get(config, category);
   }

   return (cat) ? cat->root : NULL;
}

int ast_variable_delete	(	struct ast_category *	category,
		const char *	variable,
		const char *	match,
		const char *	line
	)

Definition at line 861 of file config.c.

References ast_strlen_zero(), ast_variable_destroy(), ast_category::last, ast_variable::name, ast_variable::next, ast_category::root, and ast_variable::value.

Referenced by handle_updates().

{
   struct ast_variable *cur, *prev=NULL, *curn;
   int res = -1;
   int num_item = 0;
   int req_item;

   req_item = -1;
   if (!ast_strlen_zero(line)) {
      /* Requesting to delete by item number. */
      if (sscanf(line, "%30d", &req_item) != 1
         || req_item < 0) {
         /* Invalid item number to delete. */
         return -1;
      }
   }

   prev = NULL;
   cur = category->root;
   while (cur) {
      curn = cur->next;
      /* Delete by item number or by variable name with optional value. */
      if ((0 <= req_item && num_item == req_item)
         || (req_item < 0 && !strcasecmp(cur->name, variable)
            && (ast_strlen_zero(match) || !strcasecmp(cur->value, match)))) {
         if (prev) {
            prev->next = cur->next;
            if (cur == category->last)
               category->last = prev;
         } else {
            category->root = cur->next;
            if (cur == category->last)
               category->last = NULL;
         }
         ast_variable_destroy(cur);
         res = 0;
      } else
         prev = cur;

      cur = curn;
      ++num_item;
   }
   return res;
}

static void ast_variable_destroy

(

struct ast_variable *

doomed

)

[static]

Definition at line 524 of file config.c.

References ast_comment_destroy(), ast_free, ast_variable::precomments, ast_variable::sameline, and ast_variable::trailing.

Referenced by ast_include_rename(), ast_load_realtime(), ast_variable_delete(), ast_variable_update(), and ast_variables_destroy().

{
   ast_comment_destroy(&doomed->precomments);
   ast_comment_destroy(&doomed->sameline);
   ast_comment_destroy(&doomed->trailing);
   ast_free(doomed);
}

void ast_variable_insert	(	struct ast_category *	category,
		struct ast_variable *	variable,
		const char *	line
	)

Definition at line 488 of file config.c.

References ast_variable::next, and ast_category::root.

Referenced by handle_updates().

{
   struct ast_variable *cur = category->root;
   int lineno;
   int insertline;

   if (!variable || sscanf(line, "%30d", &insertline) != 1) {
      return;
   }
   if (!insertline) {
      variable->next = category->root;
      category->root = variable;
   } else {
      for (lineno = 1; lineno < insertline; lineno++) {
         cur = cur->next;
         if (!cur->next) {
            break;
         }
      }
      variable->next = cur->next;
      cur->next = variable;
   }
}

static void ast_variable_move	(	struct ast_variable *	dst_var,
		struct ast_variable *	src_var
	)			[static]

Definition at line 311 of file config.c.

References ast_variable::blanklines, ast_variable::lineno, ast_variable::object, ast_variable::precomments, ast_variable::sameline, and ast_variable::trailing.

Referenced by ast_include_rename(), and ast_variable_update().

{
   dst_var->lineno = src_var->lineno;
   dst_var->object = src_var->object;
   dst_var->blanklines = src_var->blanklines;
   dst_var->precomments = src_var->precomments;
   src_var->precomments = NULL;
   dst_var->sameline = src_var->sameline;
   src_var->sameline = NULL;
   dst_var->trailing = src_var->trailing;
   src_var->trailing = NULL;
}

struct ast_variable* ast_variable_new	(	const char *	name,
		const char *	value,
		const char *	filename
	)			[read]

Definition at line 270 of file config.c.

References __ast_calloc(), ast_calloc, ast_variable::file, MIN_VARIABLE_FNAME_SPACE, ast_variable::name, ast_variable::stuff, and ast_variable::value.

Referenced by add_cfg_entry(), add_rt_cfg_entry(), add_rt_multi_cfg_entry(), add_var(), apply_outgoing(), ast_channeltype_list(), ast_http_get_post_vars(), ast_include_rename(), ast_variable_update(), ast_variables_dup(), build_user(), check_access(), config_curl(), config_ldap(), config_odbc(), config_pgsql(), copy_vars(), create_vmaccount(), dup_vars(), handle_updates(), handle_uri(), httpd_helper_thread(), iax_parse_ies(), ldap_table_config_add_attribute(), man_do_variable_value(), manager_sipnotify(), mkintf(), parkandannounce_exec(), parse_cookies(), process_dahdi(), process_text_line(), realtime_curl(), realtime_directory(), realtime_ldap_entry_to_var(), realtime_ldap_result_to_vars(), realtime_multi_curl(), realtime_multi_odbc(), realtime_multi_pgsql(), realtime_odbc(), realtime_pgsql(), sip_cli_notify(), variable_clone(), vm_change_password(), and write_password_to_file().

{
   struct ast_variable *variable;
   int name_len = strlen(name) + 1;
   int val_len = strlen(value) + 1;
   int fn_len = strlen(filename) + 1;

   /* Ensure a minimum length in case the filename is changed later. */
   if (fn_len < MIN_VARIABLE_FNAME_SPACE) {
      fn_len = MIN_VARIABLE_FNAME_SPACE;
   }

   if (
#ifdef MALLOC_DEBUG
      (variable = __ast_calloc(1, fn_len + name_len + val_len + sizeof(*variable), file, lineno, func))
#else
      (variable = ast_calloc(1, fn_len + name_len + val_len + sizeof(*variable)))
#endif
      ) {
      char *dst = variable->stuff;  /* writable space starts here */

      /* Put file first so ast_include_rename() can calculate space available. */
      variable->file = strcpy(dst, filename);
      dst += fn_len;
      variable->name = strcpy(dst, name);
      dst += name_len;
      variable->value = strcpy(dst, value);
   }
   return variable;
}

const char* ast_variable_retrieve	(	const struct ast_config *	config,
		const char *	category,
		const char *	variable
	)

Gets a variable.

Parameters:

	config	which (opened) config to use
	category	category under which the variable lies
	variable	which variable you wish to get the data for

Goes through a given config file in the given category and searches for the given variable

Return values:

	The	variable value on success
	NULL	if unable to find it.

Definition at line 593 of file config.c.

References ast_variable_browse(), ast_variable::name, ast_category::next, ast_variable::next, ast_category::root, ast_config::root, and ast_variable::value.

Referenced by __ast_udptl_reload(), __init_manager(), actual_load_config(), advanced_options(), aji_load_config(), ast_config_option(), AST_LIST_HEAD_NOLOCK(), build_extension(), conf_exec(), config_function_read(), config_module(), directory_exec(), do_reload(), festival_exec(), find_queue_by_name_rt(), find_realtime(), get_insecure_variable_from_config(), get_insecure_variable_from_sipregs(), gtalk_load_config(), iax_template_parse(), init_acf_query(), init_logger_chain(), initialize_cc_max_requests(), jingle_load_config(), load_config(), load_config_meetme(), load_indications(), load_module(), load_modules(), load_tech_calendars(), make_email_file(), odbc_load_module(), osp_load(), parse_config(), pbx_load_config(), pbx_load_users(), play_message(), prep_email_sub_vars(), private_enum_init(), queue_set_global_params(), read_agent_config(), read_password_from_file(), realtime_directory(), reload_config(), reload_followme(), reload_single_queue(), rtp_reload(), search_directory(), set_config(), setup_dahdi_int(), sla_build_station(), sla_build_trunk(), sla_load_config(), tds_load_module(), update_realtime_members(), vm_change_password(), and vm_forwardoptions().

{
   struct ast_variable *v;

   if (category) {
      for (v = ast_variable_browse(config, category); v; v = v->next) {
         if (!strcasecmp(variable, v->name)) {
            return v->value;
         }
      }
   } else {
      struct ast_category *cat;

      for (cat = config->root; cat; cat = cat->next) {
         for (v = cat->root; v; v = v->next) {
            if (!strcasecmp(variable, v->name)) {
               return v->value;
            }
         }
      }
   }

   return NULL;
}

int ast_variable_update	(	struct ast_category *	category,
		const char *	variable,
		const char *	value,
		const char *	match,
		unsigned int	object
	)

Update variable value within a config.

Parameters:

	category	Category element within the config
	variable	Name of the variable to change
	value	New value of the variable
	match	If set, previous value of the variable (if NULL or zero-length, no matching will be done)
	object	Boolean of whether to make the new variable an object

Returns:

0 on success or -1 on failure.

Definition at line 906 of file config.c.

References ast_strlen_zero(), ast_variable_destroy(), ast_variable_move(), ast_variable_new(), ast_variable::file, ast_category::last, ast_variable::name, ast_variable::next, ast_category::root, and ast_variable::value.

Referenced by handle_updates(), process_text_line(), vm_change_password(), and vm_forwardoptions().

{
   struct ast_variable *cur, *prev=NULL, *newer=NULL;

   for (cur = category->root; cur; prev = cur, cur = cur->next) {
      if (strcasecmp(cur->name, variable) ||
         (!ast_strlen_zero(match) && strcasecmp(cur->value, match)))
         continue;

      if (!(newer = ast_variable_new(variable, value, cur->file)))
         return -1;

      ast_variable_move(newer, cur);
      newer->object = newer->object || object;

      /* Replace the old node in the list with the new node. */
      newer->next = cur->next;
      if (prev)
         prev->next = newer;
      else
         category->root = newer;
      if (category->last == cur)
         category->last = newer;

      ast_variable_destroy(cur);

      return 0;
   }

   /* Could not find variable to update */
   return -1;
}

void ast_variables_destroy

(

struct ast_variable *

var

)

Free variable list.

Parameters:

var

the linked list of variables to free

This function frees a list of variables.

Definition at line 554 of file config.c.

References ast_variable_destroy(), and ast_variable::next.

Referenced by __sip_destroy(), action_originate(), ast_category_destroy(), ast_category_empty(), ast_http_get_cookies(), ast_http_manid_from_vars(), ast_pbx_outgoing_app(), ast_pbx_outgoing_exten(), ast_var_channel_types(), ast_var_channel_types_table(), ast_variables_dup(), auth_http_callback(), build_gateway(), build_peer(), build_user(), check_peer_ok(), cli_realtime_load(), conf_run(), copy_plain_file(), destroy_dahdi_pvt(), destroy_endpoint(), destroy_fast_originate_helper(), dup_vars(), find_conf_realtime(), find_realtime(), find_realtime_gw(), find_user_realtime(), free_entry(), free_outgoing(), free_user(), function_realtime_read(), function_realtime_readdestroy(), generic_http_callback(), get_insecure_variable_from_sipregs(), handle_uri(), http_post_callback(), httpd_helper_thread(), httpstatus_callback(), ldap_loadentry(), leave_queue(), load_realtime_queue(), local_ast_moh_start(), manager_sipnotify(), mkintf(), parkandannounce_exec(), process_dahdi(), pvt_destructor(), queue_function_queuewaitingcount(), realtime_alias(), realtime_canmatch(), realtime_common(), realtime_exec(), realtime_exists(), realtime_handler(), realtime_ldap_base_ap(), realtime_ldap_result_to_vars(), realtime_matchmore(), realtime_odbc(), realtime_peer(), realtime_peer_by_addr(), realtime_peer_by_name(), realtime_peer_get_sippeer_helper(), realtime_user(), realtimefield_read(), rt_extend_conf(), sip_destroy_peer(), socket_process(), table_configs_free(), and user_destructor().

{
   struct ast_variable *vn;

   while (v) {
      vn = v;
      v = v->next;
      ast_variable_destroy(vn);
   }
}

struct ast_variable* ast_variables_dup

(

struct ast_variable *

var

)

[read]

Duplicate variable list.

Parameters:

var

the linked list of variables to clone

Returns:

A duplicated list which you'll need to free with ast_variables_destroy or NULL when out of memory.

Note:

Do not depend on this to copy more than just name, value and filename (the arguments to ast_variables_new).

Definition at line 532 of file config.c.

References ast_variable_new(), ast_variables_destroy(), ast_variable::file, ast_variable::name, ast_variable::next, and ast_variable::value.

Referenced by get_insecure_variable_from_sippeers(), and get_insecure_variable_from_sipregs().

{
   struct ast_variable *cloned;
   struct ast_variable *tmp;

   if (!(cloned = ast_variable_new(var->name, var->value, var->file))) {
      return NULL;
   }

   tmp = cloned;

   while ((var = var->next)) {
      if (!(tmp->next = ast_variable_new(var->name, var->value, var->file))) {
         ast_variables_destroy(cloned);
         return NULL;
      }
      tmp = tmp->next;
   }

   return cloned;
}

static struct ast_category* category_get	(	const struct ast_config *	config,
		const char *	category_name,
		int	ignored
	)			[static, read]

Definition at line 659 of file config.c.

References ast_category::ignored, ast_category::name, ast_category::next, and ast_config::root.

Referenced by ast_category_get(), and process_text_line().

{
   struct ast_category *cat;

   /* try exact match first, then case-insensitive match */
   for (cat = config->root; cat; cat = cat->next) {
      if (cat->name == category_name && (ignored || !cat->ignored))
         return cat;
   }

   for (cat = config->root; cat; cat = cat->next) {
      if (!strcasecmp(cat->name, category_name) && (ignored || !cat->ignored))
         return cat;
   }

   return NULL;
}

static void CB_ADD	(	struct ast_str **	cb,
		const char *	str
	)			[static]

Definition at line 112 of file config.c.

References ast_str_append().

Referenced by config_text_file_load().

{
   ast_str_append(cb, 0, "%s", str);
}

static void CB_ADD_LEN	(	struct ast_str **	cb,
		const char *	str,
		int	len
	)			[static]

Definition at line 117 of file config.c.

References ast_alloca, ast_copy_string(), and ast_str_append().

Referenced by config_text_file_load().

{
   char *s = ast_alloca(len + 1);
   ast_copy_string(s, str, len);
   ast_str_append(cb, 0, "%s", str);
}

static void CB_RESET	(	struct ast_str *	cb,
		struct ast_str *	llb
	)			[static]

Definition at line 124 of file config.c.

References ast_str_reset().

Referenced by config_text_file_load(), and process_text_line().

{ 
   if (cb) {
      ast_str_reset(cb);
   }
   if (llb) {
      ast_str_reset(llb);
   }
}

static struct cache_file_mtime* cfmtime_new	(	const char *	filename,
		const char *	who_asked
	)			[static, read]

Definition at line 1040 of file config.c.

References ast_calloc, cache_file_mtime::filename, and cache_file_mtime::who_asked.

Referenced by config_cache_attribute(), and config_text_file_load().

{
   struct cache_file_mtime *cfmtime;
   char *dst;

   cfmtime = ast_calloc(1,
      sizeof(*cfmtime) + strlen(filename) + 1 + strlen(who_asked) + 1);
   if (!cfmtime) {
      return NULL;
   }
   dst = cfmtime->filename;   /* writable space starts here */
   strcpy(dst, filename);
   dst += strlen(dst) + 1;
   cfmtime->who_asked = strcpy(dst, who_asked);

   return cfmtime;
}

static void clear_config_maps

(

void

)

[static]

Definition at line 2087 of file config.c.

References ast_free, ast_mutex_lock, ast_mutex_unlock, config_lock, config_maps, map, and ast_config_map::next.

Referenced by read_config_maps().

{
   struct ast_config_map *map;

   ast_mutex_lock(&config_lock);

   while (config_maps) {
      map = config_maps;
      config_maps = config_maps->next;
      ast_free(map);
   }
      
   ast_mutex_unlock(&config_lock);
}

static void config_cache_attribute	(	const char *	configfile,
		enum config_cache_attribute_enum	attrtype,
		const char *	filename,
		const char *	who_asked
	)			[static]

Definition at line 1063 of file config.c.

References ast_calloc, AST_LIST_INSERT_SORTALPHA, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ATTRIBUTE_EXEC, ATTRIBUTE_INCLUDE, cfmtime_new(), cache_file_mtime::filename, cache_file_mtime::has_exec, cache_file_include::include, cache_file_mtime::includes, cache_file_mtime::mtime, and cache_file_mtime::who_asked.

Referenced by process_text_line().

{
   struct cache_file_mtime *cfmtime;
   struct cache_file_include *cfinclude;
   struct stat statbuf = { 0, };

   /* Find our cached entry for this configuration file */
   AST_LIST_LOCK(&cfmtime_head);
   AST_LIST_TRAVERSE(&cfmtime_head, cfmtime, list) {
      if (!strcmp(cfmtime->filename, configfile) && !strcmp(cfmtime->who_asked, who_asked))
         break;
   }
   if (!cfmtime) {
      cfmtime = cfmtime_new(configfile, who_asked);
      if (!cfmtime) {
         AST_LIST_UNLOCK(&cfmtime_head);
         return;
      }
      /* Note that the file mtime is initialized to 0, i.e. 1970 */
      AST_LIST_INSERT_SORTALPHA(&cfmtime_head, cfmtime, list, filename);
   }

   if (!stat(configfile, &statbuf))
      cfmtime->mtime = 0;
   else
      cfmtime->mtime = statbuf.st_mtime;

   switch (attrtype) {
   case ATTRIBUTE_INCLUDE:
      AST_LIST_TRAVERSE(&cfmtime->includes, cfinclude, list) {
         if (!strcmp(cfinclude->include, filename)) {
            AST_LIST_UNLOCK(&cfmtime_head);
            return;
         }
      }
      cfinclude = ast_calloc(1, sizeof(*cfinclude) + strlen(filename) + 1);
      if (!cfinclude) {
         AST_LIST_UNLOCK(&cfmtime_head);
         return;
      }
      strcpy(cfinclude->include, filename);
      AST_LIST_INSERT_TAIL(&cfmtime->includes, cfinclude, list);
      break;
   case ATTRIBUTE_EXEC:
      cfmtime->has_exec = 1;
      break;
   }
   AST_LIST_UNLOCK(&cfmtime_head);
}

static void config_shutdown

(

void

)

[static]

Definition at line 2972 of file config.c.

References ARRAY_LEN, ast_cli_unregister_multiple(), ast_free, AST_LIST_LOCK, AST_LIST_REMOVE_HEAD, AST_LIST_UNLOCK, and cache_file_mtime::includes.

Referenced by register_config_cli().

{
   struct cache_file_mtime *cfmtime;

   AST_LIST_LOCK(&cfmtime_head);
   while ((cfmtime = AST_LIST_REMOVE_HEAD(&cfmtime_head, list))) {
      struct cache_file_include *cfinclude;
      while ((cfinclude = AST_LIST_REMOVE_HEAD(&cfmtime->includes, list))) {
         ast_free(cfinclude);
      }
      ast_free(cfmtime);
   }
   AST_LIST_UNLOCK(&cfmtime_head);

   ast_cli_unregister_multiple(cli_config, ARRAY_LEN(cli_config));
}

static struct ast_config* config_text_file_load	(	const char *	database,
		const char *	table,
		const char *	filename,
		struct ast_config *	cfg,
		struct ast_flags	flags,
		const char *	suggested_include_file,
		const char *	who_asked
	)			[static, read]

Growable string buffer

< this will be a comment collector.

< A buffer for stuff behind the ;

Definition at line 1368 of file config.c.

References ALLOC_COMMENT(), ast_clear_flag, ast_config_AST_CONFIG_DIR, ast_config_get_current_category(), ast_copy_string(), ast_debug, ast_free, AST_LIST_INSERT_SORTALPHA, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log(), ast_str_buffer(), ast_str_create(), ast_str_reset(), ast_str_strlen(), ast_strip(), ast_strlen_zero(), ast_test_flag, ast_verb, CB_ADD(), CB_ADD_LEN(), CB_RESET(), CB_SIZE, cfmtime_new(), comment, COMMENT_META, COMMENT_TAG, CONFIG_FLAG_FILEUNCHANGED, CONFIG_FLAG_NOCACHE, CONFIG_FLAG_WITHCOMMENTS, CONFIG_STATUS_FILEINVALID, CONFIG_STATUS_FILEUNCHANGED, errno, f, cache_file_mtime::filename, GLOB_ABORTED, cache_file_mtime::has_exec, cache_file_include::include, cache_file_mtime::includes, LOG_ERROR, LOG_WARNING, MAX_NESTED_COMMENTS, cache_file_mtime::mtime, MY_GLOB_FLAGS, process_text_line(), ast_variable::trailing, ast_category::trailing, and cache_file_mtime::who_asked.

{
   char fn[256];
#if defined(LOW_MEMORY)
   char buf[512];
#else
   char buf[8192];
#endif
   char *new_buf, *comment_p, *process_buf;
   FILE *f;
   int lineno=0;
   int comment = 0, nest[MAX_NESTED_COMMENTS];
   struct ast_category *cat = NULL;
   int count = 0;
   struct stat statbuf;
   struct cache_file_mtime *cfmtime = NULL;
   struct cache_file_include *cfinclude;
   struct ast_variable *last_var = 0;
   struct ast_category *last_cat = 0;
   /*! Growable string buffer */
   struct ast_str *comment_buffer = NULL; /*!< this will be a comment collector.*/
   struct ast_str *lline_buffer = NULL;   /*!< A buffer for stuff behind the ; */

   if (cfg)
      cat = ast_config_get_current_category(cfg);

   if (filename[0] == '/') {
      ast_copy_string(fn, filename, sizeof(fn));
   } else {
      snprintf(fn, sizeof(fn), "%s/%s", ast_config_AST_CONFIG_DIR, filename);
   }

   if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS)) {
      comment_buffer = ast_str_create(CB_SIZE);
      if (comment_buffer)
         lline_buffer = ast_str_create(CB_SIZE);
      if (!lline_buffer) {
         ast_free(comment_buffer);
         ast_log(LOG_ERROR, "Failed to initialize the comment buffer!\n");
         return NULL;
      }
   }
#ifdef AST_INCLUDE_GLOB
   {
      int glob_ret;
      glob_t globbuf;
      globbuf.gl_offs = 0; /* initialize it to silence gcc */
      glob_ret = glob(fn, MY_GLOB_FLAGS, NULL, &globbuf);
      if (glob_ret == GLOB_NOSPACE)
         ast_log(LOG_WARNING,
            "Glob Expansion of pattern '%s' failed: Not enough memory\n", fn);
      else if (glob_ret  == GLOB_ABORTED)
         ast_log(LOG_WARNING,
            "Glob Expansion of pattern '%s' failed: Read error\n", fn);
      else  {
         /* loop over expanded files */
         int i;
         for (i=0; i<globbuf.gl_pathc; i++) {
            ast_copy_string(fn, globbuf.gl_pathv[i], sizeof(fn));
#endif
   /*
    * The following is not a loop, but just a convenient way to define a block
    * (using do { } while(0) ), and be able to exit from it with 'continue'
    * or 'break' in case of errors. Nice trick.
    */
   do {
      if (stat(fn, &statbuf))
         continue;

      if (!S_ISREG(statbuf.st_mode)) {
         ast_log(LOG_WARNING, "'%s' is not a regular file, ignoring\n", fn);
         continue;
      }

      if (!ast_test_flag(&flags, CONFIG_FLAG_NOCACHE)) {
         /* Find our cached entry for this configuration file */
         AST_LIST_LOCK(&cfmtime_head);
         AST_LIST_TRAVERSE(&cfmtime_head, cfmtime, list) {
            if (!strcmp(cfmtime->filename, fn) && !strcmp(cfmtime->who_asked, who_asked))
               break;
         }
         if (!cfmtime) {
            cfmtime = cfmtime_new(fn, who_asked);
            if (!cfmtime)
               continue;
            /* Note that the file mtime is initialized to 0, i.e. 1970 */
            AST_LIST_INSERT_SORTALPHA(&cfmtime_head, cfmtime, list, filename);
         }
      }

      if (cfmtime && (!cfmtime->has_exec) && (cfmtime->mtime == statbuf.st_mtime) && ast_test_flag(&flags, CONFIG_FLAG_FILEUNCHANGED)) {
         /* File is unchanged, what about the (cached) includes (if any)? */
         int unchanged = 1;
         AST_LIST_TRAVERSE(&cfmtime->includes, cfinclude, list) {
            /* We must glob here, because if we did not, then adding a file to globbed directory would
             * incorrectly cause no reload to be necessary. */
            char fn2[256];
#ifdef AST_INCLUDE_GLOB
            int glob_return;
            glob_t glob_buf = { .gl_offs = 0 };
            glob_return = glob(cfinclude->include, MY_GLOB_FLAGS, NULL, &glob_buf);
            /* On error, we reparse */
            if (glob_return == GLOB_NOSPACE || glob_return  == GLOB_ABORTED)
               unchanged = 0;
            else  {
               /* loop over expanded files */
               int j;
               for (j = 0; j < glob_buf.gl_pathc; j++) {
                  ast_copy_string(fn2, glob_buf.gl_pathv[j], sizeof(fn2));
#else
                  ast_copy_string(fn2, cfinclude->include);
#endif
                  if (config_text_file_load(NULL, NULL, fn2, NULL, flags, "", who_asked) == NULL) {
                     /* that second-to-last field needs to be looked at in this case... TODO */
                     unchanged = 0;
                     /* One change is enough to short-circuit and reload the whole shebang */
                     break;
                  }
#ifdef AST_INCLUDE_GLOB
               }
            }
#endif
         }

         if (unchanged) {
            AST_LIST_UNLOCK(&cfmtime_head);
            ast_free(comment_buffer);
            ast_free(lline_buffer);
#ifdef AST_INCLUDE_GLOB
            globfree(&globbuf);
#endif
            return CONFIG_STATUS_FILEUNCHANGED;
         }
      }
      if (!ast_test_flag(&flags, CONFIG_FLAG_NOCACHE))
         AST_LIST_UNLOCK(&cfmtime_head);

      /* If cfg is NULL, then we just want an answer */
      if (cfg == NULL) {
         ast_free(comment_buffer);
         ast_free(lline_buffer);
#ifdef AST_INCLUDE_GLOB
            globfree(&globbuf);
#endif
         return NULL;
      }

      if (cfmtime)
         cfmtime->mtime = statbuf.st_mtime;

      ast_verb(2, "Parsing '%s': ", fn);
         fflush(stdout);
      if (!(f = fopen(fn, "r"))) {
         ast_debug(1, "No file to parse: %s\n", fn);
         ast_verb(2, "Not found (%s)\n", strerror(errno));
         continue;
      }
      count++;
      /* If we get to this point, then we're loading regardless */
      ast_clear_flag(&flags, CONFIG_FLAG_FILEUNCHANGED);
      ast_debug(1, "Parsing %s\n", fn);
      ast_verb(2, "Found\n");
      while (!feof(f)) {
         lineno++;
         if (fgets(buf, sizeof(buf), f)) {
            /* Skip lines that are too long */
            if (strlen(buf) == sizeof(buf) - 1 && buf[sizeof(buf) - 1] != '\n') {
               ast_log(LOG_WARNING, "Line %d too long, skipping. It begins with: %.32s...\n", lineno, buf);
               while (fgets(buf, sizeof(buf), f)) {
                  if (strlen(buf) != sizeof(buf) - 1 || buf[sizeof(buf) - 1] == '\n') {
                     break;
                  }
               }
               continue;
            }

            if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS) && lline_buffer && ast_str_strlen(lline_buffer)) {
               CB_ADD(&comment_buffer, ast_str_buffer(lline_buffer));       /* add the current lline buffer to the comment buffer */
               ast_str_reset(lline_buffer);        /* erase the lline buffer */
            }
            
            new_buf = buf;
            if (comment) 
               process_buf = NULL;
            else
               process_buf = buf;
            
            if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS) && comment_buffer && ast_str_strlen(comment_buffer) && (ast_strlen_zero(buf) || strlen(buf) == strspn(buf," \t\n\r"))) {
               /* blank line? really? Can we add it to an existing comment and maybe preserve inter- and post- comment spacing? */
               CB_ADD(&comment_buffer, "\n");       /* add a newline to the comment buffer */
               continue; /* go get a new line, then */
            }
            
            while ((comment_p = strchr(new_buf, COMMENT_META))) {
               if ((comment_p > new_buf) && (*(comment_p - 1) == '\\')) {
                  /* Escaped semicolons aren't comments. */
                  new_buf = comment_p;
                  /* write over the \ and bring the null terminator with us */
                  memmove(comment_p - 1, comment_p, strlen(comment_p) + 1);
               } else if (comment_p[1] == COMMENT_TAG && comment_p[2] == COMMENT_TAG && (comment_p[3] != '-')) {
                  /* Meta-Comment start detected ";--" */
                  if (comment < MAX_NESTED_COMMENTS) {
                     *comment_p = '\0';
                     new_buf = comment_p + 3;
                     comment++;
                     nest[comment-1] = lineno;
                  } else {
                     ast_log(LOG_ERROR, "Maximum nest limit of %d reached.\n", MAX_NESTED_COMMENTS);
                  }
               } else if ((comment_p >= new_buf + 2) &&
                     (*(comment_p - 1) == COMMENT_TAG) &&
                     (*(comment_p - 2) == COMMENT_TAG)) {
                  /* Meta-Comment end detected */
                  comment--;
                  new_buf = comment_p + 1;
                  if (!comment) {
                     /* Back to non-comment now */
                     if (process_buf) {
                        /* Actually have to move what's left over the top, then continue */
                        char *oldptr;
                        oldptr = process_buf + strlen(process_buf);
                        if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS)) {
                           CB_ADD(&comment_buffer, ";");
                           CB_ADD_LEN(&comment_buffer, oldptr+1, new_buf-oldptr-1);
                        }
                        
                        memmove(oldptr, new_buf, strlen(new_buf) + 1);
                        new_buf = oldptr;
                     } else
                        process_buf = new_buf;
                  }
               } else {
                  if (!comment) {
                     /* If ; is found, and we are not nested in a comment, 
                        we immediately stop all comment processing */
                     if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS)) {
                        CB_ADD(&lline_buffer, comment_p);
                     }
                     *comment_p = '\0'; 
                     new_buf = comment_p;
                  } else
                     new_buf = comment_p + 1;
               }
            }
            if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS) && comment && !process_buf ) {
               CB_ADD(&comment_buffer, buf);  /* the whole line is a comment, store it */
            }
            
            if (process_buf) {
               char *buffer = ast_strip(process_buf);
               if (!ast_strlen_zero(buffer)) {
                  if (process_text_line(cfg, &cat, buffer, lineno, fn, flags, comment_buffer, lline_buffer, suggested_include_file, &last_cat, &last_var, who_asked)) {
                     cfg = CONFIG_STATUS_FILEINVALID;
                     break;
                  }
               }
            }
         }
      }
      /* end of file-- anything in a comment buffer? */
      if (last_cat) {
         if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS) && comment_buffer && ast_str_strlen(comment_buffer)) {
            if (lline_buffer && ast_str_strlen(lline_buffer)) {
               CB_ADD(&comment_buffer, ast_str_buffer(lline_buffer));       /* add the current lline buffer to the comment buffer */
               ast_str_reset(lline_buffer);        /* erase the lline buffer */
            }
            last_cat->trailing = ALLOC_COMMENT(comment_buffer);
         }
      } else if (last_var) {
         if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS) && comment_buffer && ast_str_strlen(comment_buffer)) {
            if (lline_buffer && ast_str_strlen(lline_buffer)) {
               CB_ADD(&comment_buffer, ast_str_buffer(lline_buffer));       /* add the current lline buffer to the comment buffer */
               ast_str_reset(lline_buffer);        /* erase the lline buffer */
            }
            last_var->trailing = ALLOC_COMMENT(comment_buffer);
         }
      } else {
         if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS) && comment_buffer && ast_str_strlen(comment_buffer)) {
            ast_debug(1, "Nothing to attach comments to, discarded: %s\n", ast_str_buffer(comment_buffer));
         }
      }
      if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS))
         CB_RESET(comment_buffer, lline_buffer);

      fclose(f);
   } while (0);
   if (comment) {
      ast_log(LOG_WARNING,"Unterminated comment detected beginning on line %d\n", nest[comment - 1]);
   }
#ifdef AST_INCLUDE_GLOB
               if (cfg == NULL || cfg == CONFIG_STATUS_FILEUNCHANGED || cfg == CONFIG_STATUS_FILEINVALID) {
                  break;
               }
            }
            globfree(&globbuf);
         }
      }
#endif

   if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS)) {
      ast_free(comment_buffer);
      ast_free(lline_buffer);
      comment_buffer = NULL;
      lline_buffer = NULL;
   }

   if (count == 0)
      return NULL;

   return cfg;
}

int config_text_file_save	(	const char *	configfile,
		const struct ast_config *	cfg,
		const char *	generator
	)

Definition at line 1827 of file config.c.

References ast_config_text_file_save().

{
   return ast_config_text_file_save(configfile, cfg, generator);
}

static int count_linefeeds

(

char *

str

)

[static]

Definition at line 1768 of file config.c.

Referenced by count_linefeeds_in_comments().

{
   int count = 0;

   while (*str) {
      if (*str =='\n')
         count++;
      str++;
   }
   return count;
}

static int count_linefeeds_in_comments

(

struct ast_comment *

x

)

[static]

Definition at line 1780 of file config.c.

References ast_comment::cmt, count_linefeeds(), and ast_comment::next.

Referenced by insert_leading_blank_lines().

{
   int count = 0;

   while (x) {
      count += count_linefeeds(x->cmt);
      x = x->next;
   }
   return count;
}

static struct ast_config_engine* find_engine	(	const char *	family,
		int	priority,
		char *	database,
		int	dbsiz,
		char *	table,
		int	tabsiz
	)			[static, read]

Find realtime engine for realtime family.

Definition at line 2260 of file config.c.

References ast_copy_string(), ast_log(), ast_mutex_lock, ast_mutex_unlock, config_lock, config_maps, ast_config_map::database, ast_config_map::driver, LOG_WARNING, map, ast_config_map::name, ast_config_engine::next, ast_config_map::next, ast_config_map::priority, and ast_config_map::table.

Referenced by ast_check_realtime(), ast_config_internal_load(), ast_destroy_realtime(), ast_load_realtime_helper(), ast_load_realtime_multientry(), ast_realtime_require_field(), ast_store_realtime(), ast_unload_realtime(), ast_update2_realtime(), and ast_update_realtime().

{
   struct ast_config_engine *eng, *ret = NULL;
   struct ast_config_map *map;

   ast_mutex_lock(&config_lock);

   for (map = config_maps; map; map = map->next) {
      if (!strcasecmp(family, map->name) && (priority == map->priority)) {
         if (database)
            ast_copy_string(database, map->database, dbsiz);
         if (table)
            ast_copy_string(table, map->table ? map->table : family, tabsiz);
         break;
      }
   }

   /* Check if the required driver (engine) exist */
   if (map) {
      for (eng = config_engine_list; !ret && eng; eng = eng->next) {
         if (!strcasecmp(eng->name, map->driver))
            ret = eng;
      }
   }

   ast_mutex_unlock(&config_lock);
   
   /* if we found a mapping, but the engine is not available, then issue a warning */
   if (map && !ret)
      ast_log(LOG_WARNING, "Realtime mapping for '%s' found to engine '%s', but the engine is not available\n", map->name, map->driver);

   return ret;
}

static void gen_header	(	FILE *	f1,
		const char *	configfile,
		const char *	fn,
		const char *	generator
	)			[static]

Definition at line 1701 of file config.c.

References ast_copy_string().

Referenced by ast_config_text_file_save().

{
   char date[256]="";
   time_t t;

   time(&t);
   ast_copy_string(date, ctime(&t), sizeof(date));

   fprintf(f1, ";!\n");
   fprintf(f1, ";! Automatically generated configuration file\n");
   if (strcmp(configfile, fn))
      fprintf(f1, ";! Filename: %s (%s)\n", configfile, fn);
   else
      fprintf(f1, ";! Filename: %s\n", configfile);
   fprintf(f1, ";! Generator: %s\n", generator);
   fprintf(f1, ";! Creation Date: %s", date);
   fprintf(f1, ";!\n");
}

static char* handle_cli_config_list	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)			[static]

Definition at line 2942 of file config.c.

References ast_cli(), AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, CLI_GENERATE, CLI_INIT, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, cache_file_mtime::filename, S_OR, ast_cli_entry::usage, and cache_file_mtime::who_asked.

{
   struct cache_file_mtime *cfmtime;

   switch (cmd) {
   case CLI_INIT:
      e->command = "config list";
      e->usage =
         "Usage: config list\n"
         "   Show all modules that have loaded a configuration file\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   AST_LIST_LOCK(&cfmtime_head);
   AST_LIST_TRAVERSE(&cfmtime_head, cfmtime, list) {
      ast_cli(a->fd, "%-20.20s %-50s\n", S_OR(cfmtime->who_asked, "core"), cfmtime->filename);
   }
   AST_LIST_UNLOCK(&cfmtime_head);

   return CLI_SUCCESS;
}

static char* handle_cli_config_reload	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)			[static]

Definition at line 2880 of file config.c.

References ast_cli_args::argc, ast_cli_args::argv, ast_alloca, ast_cli_command, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_strdup, ast_strlen_zero(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, cache_file_mtime::filename, ast_cli_args::n, ast_cli_args::pos, ast_cli_entry::usage, cache_file_mtime::who_asked, and ast_cli_args::word.

{
   struct cache_file_mtime *cfmtime;
   char *prev = "", *completion_value = NULL;
   int wordlen, which = 0;

   switch (cmd) {
   case CLI_INIT:
      e->command = "config reload";
      e->usage =
         "Usage: config reload <filename.conf>\n"
         "   Reloads all modules that reference <filename.conf>\n";
      return NULL;
   case CLI_GENERATE:
      if (a->pos > 2) {
         return NULL;
      }

      wordlen = strlen(a->word);

      AST_LIST_LOCK(&cfmtime_head);
      AST_LIST_TRAVERSE(&cfmtime_head, cfmtime, list) {
         /* Skip duplicates - this only works because the list is sorted by filename */
         if (strcmp(cfmtime->filename, prev) == 0) {
            continue;
         }

         /* Core configs cannot be reloaded */
         if (ast_strlen_zero(cfmtime->who_asked)) {
            continue;
         }

         if (++which > a->n && strncmp(cfmtime->filename, a->word, wordlen) == 0) {
            completion_value = ast_strdup(cfmtime->filename);
            break;
         }

         /* Otherwise save that we've seen this filename */
         prev = cfmtime->filename;
      }
      AST_LIST_UNLOCK(&cfmtime_head);

      return completion_value;
   }

   if (a->argc != 3) {
      return CLI_SHOWUSAGE;
   }

   AST_LIST_LOCK(&cfmtime_head);
   AST_LIST_TRAVERSE(&cfmtime_head, cfmtime, list) {
      if (!strcmp(cfmtime->filename, a->argv[2])) {
         char *buf = ast_alloca(strlen("module reload ") + strlen(cfmtime->who_asked) + 1);
         sprintf(buf, "module reload %s", cfmtime->who_asked);
         ast_cli_command(a->fd, buf);
      }
   }
   AST_LIST_UNLOCK(&cfmtime_head);

   return CLI_SUCCESS;
}

static char* handle_cli_core_show_config_mappings	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)			[static]

Definition at line 2843 of file config.c.

References ast_cli(), ast_mutex_lock, ast_mutex_unlock, CLI_GENERATE, CLI_INIT, CLI_SUCCESS, ast_cli_entry::command, config_lock, config_maps, ast_config_map::database, ast_config_map::driver, ast_cli_args::fd, map, ast_config_map::name, ast_config_engine::name, ast_config_map::next, ast_config_engine::next, ast_config_map::table, and ast_cli_entry::usage.

{
   struct ast_config_engine *eng;
   struct ast_config_map *map;

   switch (cmd) {
   case CLI_INIT:
      e->command = "core show config mappings";
      e->usage =
         "Usage: core show config mappings\n"
         "  Shows the filenames to config engines.\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }
   
   ast_mutex_lock(&config_lock);

   if (!config_engine_list) {
      ast_cli(a->fd, "No config mappings found.\n");
   } else {
      for (eng = config_engine_list; eng; eng = eng->next) {
         ast_cli(a->fd, "Config Engine: %s\n", eng->name);
         for (map = config_maps; map; map = map->next) {
            if (!strcasecmp(map->driver, eng->name)) {
               ast_cli(a->fd, "===> %s (db=%s, table=%s)\n", map->name, map->database,
                     map->table ? map->table : map->name);
            }
         }
      }
   }
   
   ast_mutex_unlock(&config_lock);

   return CLI_SUCCESS;
}

static int hash_string	(	const void *	obj,
		const int	flags
	)			[static]

Definition at line 154 of file config.c.

References str, and total.

Referenced by ast_config_text_file_save().

{
   char *str = ((struct inclfile *) obj)->fname;
   int total;

   for (total = 0; *str; str++) {
      unsigned int tmp = total;
      total <<= 1; /* multiply by 2 */
      total += tmp; /* multiply by 3 */
      total <<= 2; /* multiply by 12 */
      total += tmp; /* multiply by 13 */

      total += ((unsigned int) (*str));
   }
   if (total < 0) {
      total = -total;
   }
   return total;
}

static int hashtab_compare_strings	(	void *	a,
		void *	b,
		int	flags
	)			[static]

Definition at line 174 of file config.c.

References CMP_MATCH, CMP_STOP, and inclfile::fname.

Referenced by ast_config_text_file_save().

{
   const struct inclfile *ae = a, *be = b;
   return !strcmp(ae->fname, be->fname) ? CMP_MATCH | CMP_STOP : 0;
}

static void inclfile_destroy

(

void *

obj

)

[static]

Definition at line 1720 of file config.c.

References ast_free, and inclfile::fname.

Referenced by set_fn().

{
   const struct inclfile *o = obj;

   ast_free(o->fname);
}

static void inherit_category	(	struct ast_category *	new,
		const struct ast_category *	base
	)			[static]

Definition at line 836 of file config.c.

References ast_calloc, AST_LIST_INSERT_TAIL, ast_variable_append(), ast_category_template_instance::inst, ast_category::name, ast_category_template_instance::name, ast_variable::next, ast_category::root, var, and variable_clone().

Referenced by process_text_line().

{
   struct ast_variable *var;
   struct ast_category_template_instance *x;

   x = ast_calloc(1, sizeof(*x));
   if (!x) {
      return;
   }
   strcpy(x->name, base->name);
   x->inst = base;
   AST_LIST_INSERT_TAIL(&new->template_instances, x, next);
   for (var = base->root; var; var = var->next)
      ast_variable_append(new, variable_clone(var));
}

static int init_appendbuf

(

void *

data

)

[static]

Definition at line 100 of file config.c.

References ast_str_create(), and str.

{
   struct ast_str **str = data;
   *str = ast_str_create(16);
   return *str ? 0 : -1;
}

static void insert_leading_blank_lines	(	FILE *	fp,
		struct inclfile *	fi,
		struct ast_comment *	precomments,
		int	lineno
	)			[static]

Definition at line 1791 of file config.c.

References count_linefeeds_in_comments(), and inclfile::lineno.

Referenced by ast_config_text_file_save().

{
   int precomment_lines;
   int i;

   if (!fi) {
      /* No file scratch pad object so insert no blank lines. */
      return;
   }

   precomment_lines = count_linefeeds_in_comments(precomments);

   /* I don't have to worry about those ;! comments, they are
      stored in the precomments, but not printed back out.
      I did have to make sure that comments following
      the ;! header comments were not also deleted in the process */
   if (lineno - precomment_lines - fi->lineno < 0) { /* insertions can mess up the line numbering and produce negative numbers that mess things up */
      return;
   } else if (lineno == 0) {
      /* Line replacements also mess things up */
      return;
   } else if (lineno - precomment_lines - fi->lineno < 5) {
      /* Only insert less than 5 blank lines; if anything more occurs,
       * it's probably due to context deletion. */
      for (i = fi->lineno; i < lineno - precomment_lines; i++) {
         fprintf(fp, "\n");
      }
   } else {
      /* Deletion occurred - insert a single blank line, for separation of
       * contexts. */
      fprintf(fp, "\n");
   }
 
   fi->lineno = lineno + 1; /* Advance the file lineno */
}

static void move_variables	(	struct ast_category *	old,
		struct ast_category *	new
	)			[static]

Definition at line 632 of file config.c.

References ast_variable_append(), ast_category::root, and var.

Referenced by process_text_line().

{
   struct ast_variable *var = old->root;

   old->root = NULL;
   /* we can just move the entire list in a single op */
   ast_variable_append(new, var);
}

static struct ast_category* next_available_category

(

struct ast_category *

cat

)

[static, read]

Definition at line 752 of file config.c.

References ast_category::ignored, and ast_category::next.

Referenced by ast_category_browse().

{
   for (; cat && cat->ignored; cat = cat->next);

   return cat;
}

static int process_text_line	(	struct ast_config *	cfg,
		struct ast_category **	cat,
		char *	buf,
		int	lineno,
		const char *	configfile,
		struct ast_flags	flags,
		struct ast_str *	comment_buffer,
		struct ast_str *	lline_buffer,
		const char *	suggested_include_file,
		struct ast_category **	last_cat,
		struct ast_variable **	last_var,
		const char *	who_asked
	)			[static]

parse one line in the configuration.

 * We can have a category header	[foo](...)
 * a directive				#include / #exec
 * or a regular line			name = value
 * 

Definition at line 1120 of file config.c.

References ALLOC_COMMENT(), appendbuf, ast_category_append(), ast_category_destroy(), ast_category_first(), ast_category_new(), ast_config_internal_load(), ast_include_new(), ast_log(), ast_opt_exec_includes, ast_safe_system(), ast_skip_blanks(), ast_str_append(), ast_str_buffer(), ast_str_set(), ast_str_trim_blanks(), ast_strip(), ast_strlen_zero(), ast_test_flag, ast_threadstorage_get(), ast_tvnow(), ast_variable_append(), ast_variable_new(), ast_variable_update(), ATTRIBUTE_EXEC, ATTRIBUTE_INCLUDE, ast_variable::blanklines, category_get(), CB_RESET(), config_cache_attribute(), CONFIG_FLAG_NOCACHE, CONFIG_FLAG_WITHCOMMENTS, ast_config::include_level, inherit_category(), ast_variable::lineno, LOG_ERROR, LOG_WARNING, move_variables(), ast_variable::name, ast_variable::next, ast_variable::object, ast_variable::precomments, ast_category::precomments, replace(), S_OR, ast_variable::sameline, ast_category::sameline, str, ast_variable::value, and var.

Referenced by config_text_file_load().

{
   char *c;
   char *cur = buf;
   struct ast_variable *v;
   char cmd[512], exec_file[512];

   /* Actually parse the entry */
   if (cur[0] == '[') { /* A category header */
      /* format is one of the following:
       * [foo] define a new category named 'foo'
       * [foo](!) define a new template category named 'foo'
       * [foo](+) append to category 'foo', error if foo does not exist.
       * [foo](a) define a new category and inherit from template a.
       *    You can put a comma-separated list of templates and '!' and '+'
       *    between parentheses, with obvious meaning.
       */
      struct ast_category *newcat = NULL;
      char *catname;

      c = strchr(cur, ']');
      if (!c) {
         ast_log(LOG_WARNING, "parse error: no closing ']', line %d of %s\n", lineno, configfile);
         return -1;
      }
      *c++ = '\0';
      cur++;
      if (*c++ != '(')
         c = NULL;
      catname = cur;
      if (!(*cat = newcat = ast_category_new(catname,
            S_OR(suggested_include_file, cfg->include_level == 1 ? "" : configfile),
            lineno))) {
         return -1;
      }
      (*cat)->lineno = lineno;
      *last_var = 0;
      *last_cat = newcat;
      
      /* add comments */
      if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS))
         newcat->precomments = ALLOC_COMMENT(comment_buffer);
      if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS))
         newcat->sameline = ALLOC_COMMENT(lline_buffer);
      if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS))
         CB_RESET(comment_buffer, lline_buffer);
      
      /* If there are options or categories to inherit from, process them now */
      if (c) {
         if (!(cur = strchr(c, ')'))) {
            ast_log(LOG_WARNING, "parse error: no closing ')', line %d of %s\n", lineno, configfile);
            return -1;
         }
         *cur = '\0';
         while ((cur = strsep(&c, ","))) {
            if (!strcasecmp(cur, "!")) {
               (*cat)->ignored = 1;
            } else if (!strcasecmp(cur, "+")) {
               *cat = category_get(cfg, catname, 1);
               if (!(*cat)) {
                  if (newcat)
                     ast_category_destroy(newcat);
                  ast_log(LOG_WARNING, "Category addition requested, but category '%s' does not exist, line %d of %s\n", catname, lineno, configfile);
                  return -1;
               }
               if (newcat) {
                  move_variables(newcat, *cat);
                  ast_category_destroy(newcat);
                  newcat = NULL;
               }
            } else {
               struct ast_category *base;
            
               base = category_get(cfg, cur, 1);
               if (!base) {
                  ast_log(LOG_WARNING, "Inheritance requested, but category '%s' does not exist, line %d of %s\n", cur, lineno, configfile);
                  return -1;
               }
               inherit_category(*cat, base);
            }
         }
      }
      if (newcat)
         ast_category_append(cfg, *cat);
   } else if (cur[0] == '#') { /* A directive - #include or #exec */
      char *cur2;
      char real_inclusion_name[256];
      int do_include = 0;  /* otherwise, it is exec */

      cur++;
      c = cur;
      while (*c && (*c > 32)) {
         c++;
      }

      if (*c) {
         *c = '\0';
         /* Find real argument */
         c = ast_strip(c + 1);
         if (!(*c)) {
            c = NULL;
         }
      } else {
         c = NULL;
      }
      if (!strcasecmp(cur, "include")) {
         do_include = 1;
      } else if (!strcasecmp(cur, "exec")) {
         if (!ast_opt_exec_includes) {
            ast_log(LOG_WARNING, "Cannot perform #exec unless execincludes option is enabled in asterisk.conf (options section)!\n");
            return 0;   /* XXX is this correct ? or we should return -1 ? */
         }
      } else {
         ast_log(LOG_WARNING, "Unknown directive '#%s' at line %d of %s\n", cur, lineno, configfile);
         return 0;   /* XXX is this correct ? or we should return -1 ? */
      }

      if (c == NULL) {
         ast_log(LOG_WARNING, "Directive '#%s' needs an argument (%s) at line %d of %s\n", 
               do_include ? "include" : "exec",
               do_include ? "filename" : "/path/to/executable",
               lineno,
               configfile);
         return 0;   /* XXX is this correct ? or we should return -1 ? */
      }

      cur = c;
      /* Strip off leading and trailing "'s and <>'s */
      /* Dequote */
      if ((*c == '"') || (*c == '<')) {
         char quote_char = *c;
         if (quote_char == '<') {
            quote_char = '>';
         }

         if (*(c + strlen(c) - 1) == quote_char) {
            cur++;
            *(c + strlen(c) - 1) = '\0';
         }
      }
      cur2 = cur;

      /* #exec </path/to/executable>
         We create a tmp file, then we #include it, then we delete it. */
      if (!do_include) {
         struct timeval now = ast_tvnow();
         if (!ast_test_flag(&flags, CONFIG_FLAG_NOCACHE))
            config_cache_attribute(configfile, ATTRIBUTE_EXEC, NULL, who_asked);
         snprintf(exec_file, sizeof(exec_file), "/var/tmp/exec.%d%d.%ld", (int)now.tv_sec, (int)now.tv_usec, (long)pthread_self());
         snprintf(cmd, sizeof(cmd), "%s > %s 2>&1", cur, exec_file);
         ast_safe_system(cmd);
         cur = exec_file;
      } else {
         if (!ast_test_flag(&flags, CONFIG_FLAG_NOCACHE))
            config_cache_attribute(configfile, ATTRIBUTE_INCLUDE, cur, who_asked);
         exec_file[0] = '\0';
      }
      /* A #include */
      /* record this inclusion */
      ast_include_new(cfg, cfg->include_level == 1 ? "" : configfile, cur, !do_include, cur2, lineno, real_inclusion_name, sizeof(real_inclusion_name));

      do_include = ast_config_internal_load(cur, cfg, flags, real_inclusion_name, who_asked) ? 1 : 0;
      if (!ast_strlen_zero(exec_file))
         unlink(exec_file);
      if (!do_include) {
         ast_log(LOG_ERROR, "The file '%s' was listed as a #include but it does not exist.\n", cur);
         return -1;
      }
      /* XXX otherwise what ? the default return is 0 anyways */

   } else {
      /* Just a line (variable = value) */
      int object = 0;
      if (!(*cat)) {
         ast_log(LOG_WARNING,
            "parse error: No category context for line %d of %s\n", lineno, configfile);
         return -1;
      }
      c = strchr(cur, '=');

      if (c && c > cur && (*(c - 1) == '+')) {
         struct ast_variable *var, *replace = NULL;
         struct ast_str **str = ast_threadstorage_get(&appendbuf, sizeof(*str));

         if (!str || !*str) {
            return -1;
         }

         *(c - 1) = '\0';
         c++;
         cur = ast_strip(cur);

         /* Must iterate through category until we find last variable of same name (since there could be multiple) */
         for (var = ast_category_first(*cat); var; var = var->next) {
            if (!strcmp(var->name, cur)) {
               replace = var;
            }
         }

         if (!replace) {
            /* Nothing to replace; just set a variable normally. */
            goto set_new_variable;
         }

         ast_str_set(str, 0, "%s", replace->value);
         ast_str_append(str, 0, "%s", c);
         ast_str_trim_blanks(*str);
         ast_variable_update(*cat, replace->name, ast_skip_blanks(ast_str_buffer(*str)), replace->value, object);
      } else if (c) {
         *c = 0;
         c++;
         /* Ignore > in => */
         if (*c== '>') {
            object = 1;
            c++;
         }
set_new_variable:
         if ((v = ast_variable_new(ast_strip(cur), ast_strip(c), S_OR(suggested_include_file, cfg->include_level == 1 ? "" : configfile)))) {
            v->lineno = lineno;
            v->object = object;
            *last_cat = 0;
            *last_var = v;
            /* Put and reset comments */
            v->blanklines = 0;
            ast_variable_append(*cat, v);
            /* add comments */
            if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS))
               v->precomments = ALLOC_COMMENT(comment_buffer);
            if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS))
               v->sameline = ALLOC_COMMENT(lline_buffer);
            if (ast_test_flag(&flags, CONFIG_FLAG_WITHCOMMENTS))
               CB_RESET(comment_buffer, lline_buffer);
            
         } else {
            return -1;
         }
      } else {
         ast_log(LOG_WARNING, "No '=' (equal sign) in line %d of %s\n", lineno, configfile);
      }
   }
   return 0;
}

int read_config_maps

(

void

)

Exposed re-initialization method for core process.

This method is intended for use only with the core re-initialization and is not designed to be called from any user applications.

Definition at line 2137 of file config.c.

References append_mapping(), ast_config_destroy(), ast_config_internal_load(), ast_config_new(), ast_copy_string(), ast_log(), ast_variable_browse(), clear_config_maps(), config, CONFIG_FLAG_NOREALTIME, CONFIG_STATUS_FILEINVALID, LOG_ERROR, LOG_WARNING, ast_config::max_include_level, ast_variable::name, ast_variable::next, table, and ast_variable::value.

Referenced by main().

{
   struct ast_config *config, *configtmp;
   struct ast_variable *v;
   char *driver, *table, *database, *textpri, *stringp, *tmp;
   struct ast_flags flags = { CONFIG_FLAG_NOREALTIME };
   int pri;

   clear_config_maps();

   configtmp = ast_config_new();
   if (!configtmp) {
      ast_log(LOG_ERROR, "Unable to allocate memory for new config\n");
      return -1;
   }
   configtmp->max_include_level = 1;
   config = ast_config_internal_load(extconfig_conf, configtmp, flags, "", "extconfig");
   if (config == CONFIG_STATUS_FILEINVALID) {
      return -1;
   } else if (!config) {
      ast_config_destroy(configtmp);
      return 0;
   }

   for (v = ast_variable_browse(config, "settings"); v; v = v->next) {
      char buf[512];
      ast_copy_string(buf, v->value, sizeof(buf));
      stringp = buf;
      driver = strsep(&stringp, ",");

      if ((tmp = strchr(stringp, '\"')))
         stringp = tmp;

      /* check if the database text starts with a double quote */
      if (*stringp == '"') {
         stringp++;
         database = strsep(&stringp, "\"");
         strsep(&stringp, ",");
      } else {
         /* apparently this text has no quotes */
         database = strsep(&stringp, ",");
      }

      table = strsep(&stringp, ",");
      textpri = strsep(&stringp, ",");
      if (!textpri || !(pri = atoi(textpri))) {
         pri = 1;
      }

      if (!strcmp(v->name, extconfig_conf)) {
         ast_log(LOG_WARNING, "Cannot bind '%s'!\n", extconfig_conf);
         continue;
      }

      if (!strcmp(v->name, "asterisk.conf")) {
         ast_log(LOG_WARNING, "Cannot bind 'asterisk.conf'!\n");
         continue;
      }

      if (!strcmp(v->name, "logger.conf")) {
         ast_log(LOG_WARNING, "Cannot bind 'logger.conf'!\n");
         continue;
      }

      if (!driver || !database)
         continue;
      if (!strcasecmp(v->name, "sipfriends")) {
         ast_log(LOG_WARNING, "The 'sipfriends' table is obsolete, update your config to use sippeers instead.\n");
         append_mapping("sippeers", driver, database, table ? table : "sipfriends", pri);
      } else if (!strcasecmp(v->name, "iaxfriends")) {
         ast_log(LOG_WARNING, "The 'iaxfriends' table is obsolete, update your config to use iaxusers and iaxpeers, though they can point to the same table.\n");
         append_mapping("iaxusers", driver, database, table ? table : "iaxfriends", pri);
         append_mapping("iaxpeers", driver, database, table ? table : "iaxfriends", pri);
      } else 
         append_mapping(v->name, driver, database, table, pri);
   }
      
   ast_config_destroy(config);
   return 0;
}

int register_config_cli

(

void

)

Exposed initialization method for core process.

This method is intended for use only with the core initialization and is not designed to be called from any user applications.

Definition at line 2989 of file config.c.

References ARRAY_LEN, ast_cli_register_multiple(), ast_register_atexit(), and config_shutdown().

Referenced by main().

{
   ast_cli_register_multiple(cli_config, ARRAY_LEN(cli_config));
   ast_register_atexit(config_shutdown);
   return 0;
}

static struct inclfile* set_fn	(	char *	fn,
		int	fn_size,
		const char *	file,
		const char *	configfile,
		struct ao2_container *	fileset
	)			[static, read]

Definition at line 1728 of file config.c.

References ao2_alloc, ao2_find, ao2_link, ao2_ref, ast_config_AST_CONFIG_DIR, ast_copy_string(), ast_strdup, ast_strlen_zero(), inclfile::fname, inclfile_destroy(), inclfile::lineno, and OBJ_POINTER.

Referenced by ast_config_text_file_save().

{
   struct inclfile lookup;
   struct inclfile *fi;

   if (ast_strlen_zero(file)) {
      if (configfile[0] == '/')
         ast_copy_string(fn, configfile, fn_size);
      else
         snprintf(fn, fn_size, "%s/%s", ast_config_AST_CONFIG_DIR, configfile);
   } else if (file[0] == '/')
      ast_copy_string(fn, file, fn_size);
   else
      snprintf(fn, fn_size, "%s/%s", ast_config_AST_CONFIG_DIR, file);
   lookup.fname = fn;
   fi = ao2_find(fileset, &lookup, OBJ_POINTER);
   if (fi) {
      /* Found existing include file scratch pad. */
      return fi;
   }

   /* set up a file scratch pad */
   fi = ao2_alloc(sizeof(struct inclfile), inclfile_destroy);
   if (!fi) {
      /* Scratch pad creation failed. */
      return NULL;
   }
   fi->fname = ast_strdup(fn);
   if (!fi->fname) {
      /* Scratch pad creation failed. */
      ao2_ref(fi, -1);
      return NULL;
   }
   fi->lineno = 1;

   ao2_link(fileset, fi);

   return fi;
}

static struct ast_variable* variable_clone

(

const struct ast_variable *

old

)

[static, read]

Definition at line 618 of file config.c.

References ast_variable_new(), ast_variable::blanklines, ast_variable::file, ast_variable::lineno, ast_variable::name, ast_variable::object, and ast_variable::value.

Referenced by inherit_category().

{
   struct ast_variable *new = ast_variable_new(old->name, old->value, old->file);

   if (new) {
      new->lineno = old->lineno;
      new->object = old->object;
      new->blanklines = old->blanklines;
      /* TODO: clone comments? */
   }

   return new;
}

---

Variable Documentation

struct ast_threadstorage appendbuf = { .once = PTHREAD_ONCE_INIT , .key_init = __init_appendbuf , .custom_init = init_appendbuf , } [static]

Definition at line 107 of file config.c.

Referenced by process_text_line().

struct ast_cli_entry cli_config[] [static]

Initial value:

 {
   AST_CLI_DEFINE(handle_cli_core_show_config_mappings, "Display config mappings (file names to config engines)"),
   AST_CLI_DEFINE(handle_cli_config_reload, "Force a reload on modules using a particular configuration file"),
   AST_CLI_DEFINE(handle_cli_config_list, "Show all files that have loaded a configuration file"),
}

Definition at line 2966 of file config.c.

struct ast_config_engine* config_engine_list [static]

Definition at line 196 of file config.c.

ast_mutex_t config_lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, 1 } [static]

Definition at line 195 of file config.c.

Referenced by ast_config_engine_deregister(), ast_config_engine_register(), clear_config_maps(), find_engine(), and handle_cli_core_show_config_mappings().

struct ast_config_map * config_maps [static]

Referenced by append_mapping(), ast_realtime_enabled(), clear_config_maps(), find_engine(), and handle_cli_core_show_config_mappings().

char* extconfig_conf = "extconfig.conf" [static]

Definition at line 69 of file config.c.

struct ast_config_engine text_file_engine [static]

Initial value:

 {
   .name = "text",
   .load_func = config_text_file_load,
}

Definition at line 2294 of file config.c.