Thu Apr 28 2011 17:13:36

Asterisk developer's documentation


app.h File Reference

Application convenience functions, designed to give consistent look and feel to Asterisk apps. More...

#include "asterisk/strings.h"
#include "asterisk/threadstorage.h"
Include dependency graph for app.h:
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Go to the source code of this file.

Data Structures

struct  ast_app_option
 A structure to hold the description of an application 'option'. More...
struct  ast_ivr_menu
struct  ast_ivr_option

Defines

#define AST_APP_ARG(name)   char *name
 Define an application argument.
#define AST_APP_OPTION(option, flagno)   [option] = { .flag = flagno }
 Declares an application option that does not accept an argument.
#define AST_APP_OPTION_ARG(option, flagno, argno)   [option] = { .flag = flagno, .arg_index = argno + 1 }
 Declares an application option that accepts an argument.
#define AST_APP_OPTIONS(holder, options...)   static const struct ast_app_option holder[128] = options
 Declares an array of options for an application.
#define ast_app_separate_args(a, b, c, d)   __ast_app_separate_args(a,b,1,c,d)
#define AST_DECLARE_APP_ARGS(name, arglist)   AST_DEFINE_APP_ARGS_TYPE(, arglist) name
 Declare a structure to hold an application's arguments.
#define AST_DEFINE_APP_ARGS_TYPE(type, arglist)
 Define a structure type to hold an application's arguments.
#define AST_IVR_DECLARE_MENU(holder, title, flags, foo...)
#define AST_IVR_FLAG_AUTORESTART   (1 << 0)
#define AST_NONSTANDARD_APP_ARGS(args, parse, sep)   args.argc = __ast_app_separate_args(parse, sep, 1, args.argv, ((sizeof(args) - offsetof(typeof(args), argv)) / sizeof(args.argv[0])))
 Performs the 'nonstandard' argument separation process for an application.
#define AST_NONSTANDARD_RAW_ARGS(args, parse, sep)   args.argc = __ast_app_separate_args(parse, sep, 0, args.argv, ((sizeof(args) - offsetof(typeof(args), argv)) / sizeof(args.argv[0])))
#define AST_STANDARD_APP_ARGS(args, parse)   args.argc = __ast_app_separate_args(parse, ',', 1, args.argv, ((sizeof(args) - offsetof(typeof(args), argv)) / sizeof(args.argv[0])))
 Performs the 'standard' argument separation process for an application.
#define AST_STANDARD_RAW_ARGS(args, parse)   args.argc = __ast_app_separate_args(parse, ',', 0, args.argv, ((sizeof(args) - offsetof(typeof(args), argv)) / sizeof(args.argv[0])))
#define BEGIN_OPTIONS   {
#define END_OPTIONS   }

Typedefs

typedef int(* ast_ivr_callback )(struct ast_channel *chan, char *option, void *cbdata)
 Callback function for IVR.

Enumerations

enum  ast_getdata_result {
  AST_GETDATA_FAILED = -1, AST_GETDATA_COMPLETE = 0, AST_GETDATA_TIMEOUT = 1, AST_GETDATA_INTERRUPTED = 2,
  AST_GETDATA_EMPTY_END_TERMINATED = 3
}
enum  ast_ivr_action {
  AST_ACTION_UPONE, AST_ACTION_EXIT, AST_ACTION_CALLBACK, AST_ACTION_PLAYBACK,
  AST_ACTION_BACKGROUND, AST_ACTION_PLAYLIST, AST_ACTION_MENU, AST_ACTION_REPEAT,
  AST_ACTION_RESTART, AST_ACTION_TRANSFER, AST_ACTION_WAITOPTION, AST_ACTION_NOOP,
  AST_ACTION_BACKLIST
}
enum  AST_LOCK_RESULT { AST_LOCK_SUCCESS = 0, AST_LOCK_TIMEOUT = -1, AST_LOCK_PATH_NOT_FOUND = -2, AST_LOCK_FAILURE = -3 }
enum  AST_LOCK_TYPE { AST_LOCK_TYPE_LOCKFILE = 0, AST_LOCK_TYPE_FLOCK = 1 }
 

Type of locking to use in ast_lock_path / ast_unlock_path.

More...

Functions

unsigned int __ast_app_separate_args (char *buf, char delim, int remove_chars, char **array, int arraylen)
 Separate a string into arguments in an array.
int ast_app_dtget (struct ast_channel *chan, const char *context, char *collect, size_t size, int maxlen, int timeout)
 Present a dialtone and collect a certain length extension.
int ast_app_getdata (struct ast_channel *c, const char *prompt, char *s, int maxlen, int timeout)
 Plays a stream and gets DTMF data from a channel.
int ast_app_getdata_full (struct ast_channel *c, char *prompt, char *s, int maxlen, int timeout, int audiofd, int ctrlfd)
 Full version with audiofd and controlfd. NOTE: returns '2' on ctrlfd available, not '1' like other full functions.
int ast_app_group_discard (struct ast_channel *chan)
 Discard all group counting for a channel.
int ast_app_group_get_count (const char *group, const char *category)
 Get the current channel count of the specified group and category.
struct ast_group_infoast_app_group_list_head (void)
 Get the head of the group count list.
int ast_app_group_list_rdlock (void)
 Read Lock the group count list.
int ast_app_group_list_unlock (void)
 Unlock the group count list.
int ast_app_group_list_wrlock (void)
 Write Lock the group count list.
int ast_app_group_match_get_count (const char *groupmatch, const char *category)
 Get the current channel count of all groups that match the specified pattern and category.
int ast_app_group_set_channel (struct ast_channel *chan, const char *data)
 Set the group for a channel, splitting the provided data into group and category, if specified.
int ast_app_group_split_group (const char *data, char *group, int group_max, char *category, int category_max)
 Split a group string into group and category, returning a default category if none is provided.
int ast_app_group_update (struct ast_channel *oldchan, struct ast_channel *newchan)
 Update all group counting for a channel to a new one.
int ast_app_has_voicemail (const char *mailbox, const char *folder)
 Determine if a given mailbox has any voicemail If folder is NULL, defaults to "INBOX". If folder is "INBOX", includes the number of messages in the "Urgent" folder.
int ast_app_inboxcount (const char *mailbox, int *newmsgs, int *oldmsgs)
 Determine number of new/old messages in a mailbox.
int ast_app_inboxcount2 (const char *mailbox, int *urgentmsgs, int *newmsgs, int *oldmsgs)
 Determine number of urgent/new/old messages in a mailbox.
int ast_app_messagecount (const char *context, const char *mailbox, const char *folder)
 Check number of messages in a given context, mailbox, and folder.
void ast_app_options2str64 (const struct ast_app_option *options, struct ast_flags64 *flags, char *buf, size_t len)
 Given a list of options array, return an option string based on passed flags.
int ast_app_parse_options (const struct ast_app_option *options, struct ast_flags *flags, char **args, char *optstr)
 Parses a string containing application options and sets flags/arguments.
int ast_app_parse_options64 (const struct ast_app_option *options, struct ast_flags64 *flags, char **args, char *optstr)
 Parses a string containing application options and sets flags/arguments.
int ast_app_sayname (struct ast_channel *chan, const char *mailbox, const char *context)
 Given a mailbox and context, play that mailbox owner's name to the channel specified.
void ast_close_fds_above_n (int n)
 Common routine for child processes, to close all fds prior to exec(2)
int ast_control_streamfile (struct ast_channel *chan, const char *file, const char *fwd, const char *rev, const char *stop, const char *pause, const char *restart, int skipms, long *offsetms)
 Stream a file with fast forward, pause, reverse, restart.
int ast_dtmf_stream (struct ast_channel *chan, struct ast_channel *peer, const char *digits, int between, unsigned int duration)
 Send DTMF to a channel.
int ast_get_encoded_char (const char *stream, char *result, size_t *consumed)
 Decode an encoded control or extended ASCII character.
char * ast_get_encoded_str (const char *stream, char *result, size_t result_len)
 Decode a stream of encoded control or extended ASCII characters.
void ast_install_vm_functions (int(*has_voicemail_func)(const char *mailbox, const char *folder), int(*inboxcount_func)(const char *mailbox, int *newmsgs, int *oldmsgs), int(*inboxcount2_func)(const char *mailbox, int *urgentmsgs, int *newmsgs, int *oldmsgs), int(*messagecount_func)(const char *context, const char *mailbox, const char *folder), int(*sayname_func)(struct ast_channel *chan, const char *mailbox, const char *context))
 Set voicemail function callbacks.
int ast_ivr_menu_run (struct ast_channel *c, struct ast_ivr_menu *menu, void *cbdata)
 Runs an IVR menu.
int ast_linear_stream (struct ast_channel *chan, const char *filename, int fd, int allowoverride)
 Stream a filename (or file descriptor) as a generator.
enum AST_LOCK_RESULT ast_lock_path (const char *path)
 Lock a filesystem path.
int ast_play_and_prepend (struct ast_channel *chan, char *playfile, char *recordfile, int maxtime_sec, char *fmt, int *duration, int beep, int silencethreshold, int maxsilence_ms)
 Record a message and prepend the message to the given record file after playing the optional playfile (or a beep), storing the duration in 'duration' and with a maximum permitted silence time in milliseconds of 'maxsilence' under 'silencethreshold' or use '-1' for either or both parameters for defaults.
int ast_play_and_record (struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime_sec, const char *fmt, int *duration, int silencethreshold, int maxsilence_ms, const char *path)
 Record a file for a max amount of time (in seconds), in a given list of formats separated by '|', outputting the duration of the recording, and with a maximum
permitted silence time in milliseconds of 'maxsilence' under 'silencethreshold' or use '-1' for either or both parameters for defaults. calls ast_unlock_path() on 'path' if passed.
int ast_play_and_record_full (struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime_sec, const char *fmt, int *duration, int silencethreshold, int maxsilence_ms, const char *path, const char *acceptdtmf, const char *canceldtmf)
int ast_play_and_wait (struct ast_channel *chan, const char *fn)
 Play a stream and wait for a digit, returning the digit that was pressed.
char * ast_read_textfile (const char *file)
 Read a file into asterisk.
int ast_record_review (struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime, const char *fmt, int *duration, const char *path)
 Allow to record message and have a review option.
void ast_replace_sigchld (void)
 Replace the SIGCHLD handler.
int ast_safe_fork (int stop_reaper)
 Common routine to safely fork without a chance of a signal handler firing badly in the child.
void ast_safe_fork_cleanup (void)
 Common routine to cleanup after fork'ed process is complete (if reaping was stopped)
int ast_safe_system (const char *s)
 Safely spawn an external program while closing file descriptors.
void ast_set_lock_type (enum AST_LOCK_TYPE type)
 Set the type of locks used by ast_lock_path()
int ast_str_get_encoded_str (struct ast_str **str, int maxlen, const char *stream)
 Decode a stream of encoded control or extended ASCII characters.
 AST_THREADSTORAGE_EXTERNAL (ast_str_thread_global_buf)
void ast_uninstall_vm_functions (void)
int ast_unlock_path (const char *path)
 Unlock a path.
void ast_unreplace_sigchld (void)
 Restore the SIGCHLD handler.

Detailed Description

Application convenience functions, designed to give consistent look and feel to Asterisk apps.

Definition in file app.h.


Define Documentation

#define AST_APP_ARG (   name)    char *name

Define an application argument.

Parameters:
nameThe name of the argument

Definition at line 338 of file app.h.

Referenced by acf_channel_read(), acf_curl_exec(), acf_if(), acf_import(), acf_isexten_exec(), acf_jabberstatus_read(), acf_mailbox_exists(), acf_meetme_info(), acf_odbc_read(), acf_odbc_write(), acf_rand_exec(), acf_sprintf(), acf_strftime(), acf_strptime(), acf_transaction_read(), acf_transaction_write(), acf_version_exec(), acf_vmcount_exec(), action_status(), add_agent(), admin_exec(), aes_helper(), agi_exec_full(), aji_send_exec(), aji_status_exec(), app_exec(), aqm_exec(), array(), astman_get_variables(), asyncgoto_exec(), auth_exec(), background_detect_exec(), bridge_exec(), build_profile(), cdr_read(), cdr_write(), chanavail_exec(), channel_admin_exec(), chanspy_exec(), cli_odbc_read(), cli_odbc_write(), conf_exec(), confbridge_exec(), config_function_read(), controlplayback_exec(), count_exec(), cut_internal(), dial_exec_full(), dialgroup_write(), dictate_exec(), directory_exec(), disa_exec(), dundi_query_read(), dundi_result_read(), dundifunc_read(), enable_jack_hook(), enum_query_read(), enum_result_read(), execif_exec(), extenspy_exec(), festival_exec(), file_read(), filter(), find_conf(), find_table_cb(), forkcdr_exec(), func_header_read(), function_agent(), function_db_delete(), function_db_exists(), function_db_read(), function_db_write(), function_enum(), function_fieldqty(), function_realtime_read(), function_realtime_readdestroy(), function_realtime_store(), function_realtime_write(), function_txtcidname(), gosub_exec(), gosubif_exec(), hash_read(), hash_write(), hint_read(), iconv_read(), init_acf_query(), isAnsweringMachine(), isexten_function_read(), jack_exec(), listfilter(), load_config(), load_values_config(), log_exec(), login_exec(), math(), misdn_call(), misdn_check_l2l1(), misdn_facility_exec(), mixmonitor_exec(), originate_exec(), ospauth_exec(), ospfinished_exec(), osplookup_exec(), ospnext_exec(), oss_call(), oss_request(), page_exec(), park_call_exec(), parkandannounce_exec(), pbx_builtin_answer(), pbx_builtin_background(), pbx_builtin_setvar_multiple(), pbx_builtin_waitexten(), peek_read(), play_moh_exec(), playback_exec(), pp_each_extension_exec(), pp_each_user_exec(), pqm_exec(), privacy_exec(), ql_exec(), queue_exec(), queue_function_memberpenalty_read(), queue_function_memberpenalty_write(), rcvfax_exec(), read_exec(), readexten_exec(), realtimefield_read(), record_exec(), regex(), reload_single_member(), retrydial_exec(), rqm_exec(), sayunixtime_exec(), senddtmf_exec(), sendtext_exec(), sendurl_exec(), shared_read(), shared_write(), sip_register(), sla_trunk_exec(), smdi_msg_read(), smdi_msg_retrieve_read(), sms_exec(), sndfax_exec(), softhangup_exec(), speech_background(), speech_load(), start_moh_exec(), start_monitor_exec(), transfer_exec(), upqm_exec(), userevent_exec(), verbose_exec(), vm_box_exists(), vm_check_password_shell(), vm_exec(), vm_execmain(), and zapateller_exec().

#define AST_APP_OPTION (   option,
  flagno 
)    [option] = { .flag = flagno }

Declares an application option that does not accept an argument.

Parameters:
optionThe single character representing the option
flagnoThe flag index to be set if this option is present
See also:
AST_APP_OPTIONS, ast_app_parse_options

Definition at line 504 of file app.h.

#define AST_APP_OPTION_ARG (   option,
  flagno,
  argno 
)    [option] = { .flag = flagno, .arg_index = argno + 1 }

Declares an application option that accepts an argument.

Parameters:
optionThe single character representing the option
flagnoThe flag index to be set if this option is present
argnoThe index into the argument array where the argument should be placed
See also:
AST_APP_OPTIONS, ast_app_parse_options

Definition at line 515 of file app.h.

#define AST_APP_OPTIONS (   holder,
  options... 
)    static const struct ast_app_option holder[128] = options

Declares an array of options for an application.

Parameters:
holderThe name of the array to be created
optionsThe actual options to be placed into the array
See also:
ast_app_parse_options

This macro declares a 'static const' array of struct ast_option elements to hold the list of available options for an application. Each option must be declared using either the AST_APP_OPTION() or AST_APP_OPTION_ARG() macros.

Example usage:

  enum {
        OPT_JUMP = (1 << 0),
        OPT_BLAH = (1 << 1),
        OPT_BLORT = (1 << 2),
  } my_app_option_flags;

  enum {
        OPT_ARG_BLAH = 0,
        OPT_ARG_BLORT,
        !! this entry tells how many possible arguments there are,
           and must be the last entry in the list
        OPT_ARG_ARRAY_SIZE,
  } my_app_option_args;

  AST_APP_OPTIONS(my_app_options, {
        AST_APP_OPTION('j', OPT_JUMP),
        AST_APP_OPTION_ARG('b', OPT_BLAH, OPT_ARG_BLAH),
        AST_APP_OPTION_BLORT('B', OPT_BLORT, OPT_ARG_BLORT),
  });

  static int my_app_exec(struct ast_channel *chan, void *data)
  {
   char *options;
   struct ast_flags opts = { 0, };
   char *opt_args[OPT_ARG_ARRAY_SIZE];

   ... do any argument parsing here ...

   if (ast_app_parse_options(my_app_options, &opts, opt_args, options)) {
      return -1;
   }
  }

Definition at line 495 of file app.h.

#define ast_app_separate_args (   a,
  b,
  c,
 
)    __ast_app_separate_args(a,b,1,c,d)

Definition at line 423 of file app.h.

#define AST_DECLARE_APP_ARGS (   name,
  arglist 
)    AST_DEFINE_APP_ARGS_TYPE(, arglist) name

Declare a structure to hold an application's arguments.

Parameters:
nameThe name of the structure
arglistThe list of arguments, defined using AST_APP_ARG

This macro declares a structure intended to be used in a call to ast_app_separate_args(). The structure includes all the arguments specified, plus an argv array that overlays them and an argc argument counter. The arguments must be declared using AST_APP_ARG, and they will all be character pointers (strings).

Note:
The structure is not initialized, as the call to ast_app_separate_args() will perform that function before parsing the arguments.

Definition at line 355 of file app.h.

Referenced by acf_channel_read(), acf_curl_exec(), acf_if(), acf_import(), acf_isexten_exec(), acf_jabberstatus_read(), acf_mailbox_exists(), acf_meetme_info(), acf_odbc_read(), acf_odbc_write(), acf_rand_exec(), acf_sprintf(), acf_strftime(), acf_strptime(), acf_transaction_read(), acf_transaction_write(), acf_version_exec(), acf_vmcount_exec(), action_status(), add_agent(), admin_exec(), aes_helper(), agi_exec_full(), aji_send_exec(), aji_status_exec(), app_exec(), aqm_exec(), array(), astman_get_variables(), asyncgoto_exec(), auth_exec(), background_detect_exec(), bridge_exec(), build_profile(), cdr_read(), cdr_write(), chanavail_exec(), channel_admin_exec(), chanspy_exec(), cli_odbc_read(), cli_odbc_write(), conf_exec(), confbridge_exec(), config_function_read(), controlplayback_exec(), count_exec(), cut_internal(), dial_exec_full(), dialgroup_write(), dictate_exec(), directory_exec(), disa_exec(), dundi_query_read(), dundi_result_read(), dundifunc_read(), enable_jack_hook(), enum_query_read(), enum_result_read(), execif_exec(), extenspy_exec(), festival_exec(), file_read(), filter(), find_conf(), find_table_cb(), forkcdr_exec(), func_header_read(), function_agent(), function_db_delete(), function_db_exists(), function_db_read(), function_db_write(), function_enum(), function_fieldqty(), function_realtime_read(), function_realtime_readdestroy(), function_realtime_store(), function_realtime_write(), function_txtcidname(), gosub_exec(), gosubif_exec(), hash_read(), hash_write(), hint_read(), iconv_read(), init_acf_query(), isAnsweringMachine(), isexten_function_read(), jack_exec(), listfilter(), load_config(), load_values_config(), log_exec(), login_exec(), math(), misdn_call(), misdn_check_l2l1(), misdn_facility_exec(), mixmonitor_exec(), originate_exec(), ospauth_exec(), ospfinished_exec(), osplookup_exec(), ospnext_exec(), oss_call(), oss_request(), page_exec(), park_call_exec(), parkandannounce_exec(), pbx_builtin_answer(), pbx_builtin_background(), pbx_builtin_setvar_multiple(), pbx_builtin_waitexten(), peek_read(), play_moh_exec(), playback_exec(), pp_each_extension_exec(), pp_each_user_exec(), pqm_exec(), privacy_exec(), ql_exec(), queue_exec(), queue_function_memberpenalty_read(), queue_function_memberpenalty_write(), rcvfax_exec(), read_exec(), readexten_exec(), realtimefield_read(), record_exec(), regex(), reload_single_member(), retrydial_exec(), rqm_exec(), sayunixtime_exec(), senddtmf_exec(), sendtext_exec(), sendurl_exec(), shared_read(), shared_write(), sip_register(), sla_trunk_exec(), smdi_msg_read(), smdi_msg_retrieve_read(), sms_exec(), sndfax_exec(), softhangup_exec(), speech_background(), speech_load(), start_moh_exec(), start_monitor_exec(), transfer_exec(), upqm_exec(), userevent_exec(), verbose_exec(), vm_box_exists(), vm_check_password_shell(), vm_exec(), vm_execmain(), and zapateller_exec().

#define AST_DEFINE_APP_ARGS_TYPE (   type,
  arglist 
)
Value:
struct type { \
      unsigned int argc; \
      char *argv[0]; \
      arglist \
   }

Define a structure type to hold an application's arguments.

Parameters:
typeThe name of the structure type
arglistThe list of arguments, defined using AST_APP_ARG

This macro defines a structure type intended to be used in a call to ast_app_separate_args(). The structure includes all the arguments specified, plus an argv array that overlays them and an argc argument counter. The arguments must be declared using AST_APP_ARG, and they will all be character pointers (strings).

Note:
This defines a structure type, but does not declare an instance of the structure. That must be done separately.

Definition at line 371 of file app.h.

#define AST_IVR_DECLARE_MENU (   holder,
  title,
  flags,
  foo... 
)
Value:
static struct ast_ivr_option __options_##holder[] = foo;\
   static struct ast_ivr_menu holder = { title, flags, __options_##holder }

Definition at line 83 of file app.h.

#define AST_IVR_FLAG_AUTORESTART   (1 << 0)

Definition at line 81 of file app.h.

#define AST_NONSTANDARD_APP_ARGS (   args,
  parse,
  sep 
)    args.argc = __ast_app_separate_args(parse, sep, 1, args.argv, ((sizeof(args) - offsetof(typeof(args), argv)) / sizeof(args.argv[0])))

Performs the 'nonstandard' argument separation process for an application.

Parameters:
argsAn argument structure defined using AST_DECLARE_APP_ARGS
parseA modifiable buffer containing the input to be parsed
sepA nonstandard separator character

This function will separate the input string using the nonstandard argument separator character and fill in the provided structure, including the argc argument counter field.

Definition at line 402 of file app.h.

Referenced by acf_if(), acf_jabberstatus_read(), acf_mailbox_exists(), aji_status_exec(), build_profile(), dialgroup_write(), function_agent(), function_db_delete(), function_db_exists(), function_db_read(), function_db_write(), misdn_call(), oss_call(), oss_request(), pbx_builtin_setvar_multiple(), record_exec(), regex(), and vm_check_password_shell().

#define AST_NONSTANDARD_RAW_ARGS (   args,
  parse,
  sep 
)    args.argc = __ast_app_separate_args(parse, sep, 0, args.argv, ((sizeof(args) - offsetof(typeof(args), argv)) / sizeof(args.argv[0])))

Definition at line 404 of file app.h.

Referenced by execif_exec(), gosubif_exec(), and sip_register().

#define AST_STANDARD_APP_ARGS (   args,
  parse 
)    args.argc = __ast_app_separate_args(parse, ',', 1, args.argv, ((sizeof(args) - offsetof(typeof(args), argv)) / sizeof(args.argv[0])))

Performs the 'standard' argument separation process for an application.

Parameters:
argsAn argument structure defined using AST_DECLARE_APP_ARGS
parseA modifiable buffer containing the input to be parsed

This function will separate the input string using the standard argument separator character ',' and fill in the provided structure, including the argc argument counter field.

Definition at line 387 of file app.h.

Referenced by acf_channel_read(), acf_curl_exec(), acf_import(), acf_isexten_exec(), acf_jabberstatus_read(), acf_meetme_info(), acf_odbc_read(), acf_odbc_write(), acf_rand_exec(), acf_sprintf(), acf_strftime(), acf_strptime(), acf_transaction_read(), acf_transaction_write(), acf_version_exec(), acf_vmcount_exec(), action_status(), add_agent(), admin_exec(), aes_helper(), agi_exec_full(), aji_send_exec(), aji_status_exec(), app_exec(), aqm_exec(), array(), astman_get_variables(), asyncgoto_exec(), auth_exec(), background_detect_exec(), bridge_exec(), build_profile(), cdr_read(), cdr_write(), chanavail_exec(), channel_admin_exec(), chanspy_exec(), cli_odbc_read(), cli_odbc_write(), conf_exec(), confbridge_exec(), config_function_read(), controlplayback_exec(), count_exec(), cut_internal(), dial_exec_full(), dialgroup_write(), dictate_exec(), directory_exec(), disa_exec(), dundi_query_read(), dundi_result_read(), dundifunc_read(), enable_jack_hook(), enum_query_read(), enum_result_read(), execif_exec(), extenspy_exec(), festival_exec(), file_read(), find_conf(), find_table_cb(), forkcdr_exec(), func_header_read(), function_enum(), function_fieldqty(), function_realtime_read(), function_realtime_readdestroy(), function_realtime_store(), function_realtime_write(), function_txtcidname(), hash_read(), hash_write(), hint_read(), iconv_read(), init_acf_query(), isAnsweringMachine(), isexten_function_read(), listfilter(), load_config(), log_exec(), login_exec(), math(), misdn_check_l2l1(), misdn_facility_exec(), mixmonitor_exec(), originate_exec(), ospauth_exec(), ospfinished_exec(), osplookup_exec(), ospnext_exec(), page_exec(), park_call_exec(), parkandannounce_exec(), pbx_builtin_answer(), pbx_builtin_background(), pbx_builtin_setvar_multiple(), pbx_builtin_waitexten(), play_moh_exec(), playback_exec(), pp_each_extension_exec(), pp_each_user_exec(), pqm_exec(), privacy_exec(), ql_exec(), queue_exec(), queue_function_memberpenalty_read(), queue_function_memberpenalty_write(), rcvfax_exec(), read_exec(), readexten_exec(), realtimefield_read(), record_exec(), reload_single_member(), retrydial_exec(), rqm_exec(), sayunixtime_exec(), senddtmf_exec(), sendtext_exec(), sendurl_exec(), shared_read(), shared_write(), sla_trunk_exec(), smdi_msg_read(), smdi_msg_retrieve_read(), sms_exec(), sndfax_exec(), softhangup_exec(), speech_background(), speech_load(), start_moh_exec(), start_monitor_exec(), transfer_exec(), upqm_exec(), userevent_exec(), verbose_exec(), vm_box_exists(), vm_exec(), vm_execmain(), and zapateller_exec().

#define AST_STANDARD_RAW_ARGS (   args,
  parse 
)    args.argc = __ast_app_separate_args(parse, ',', 0, args.argv, ((sizeof(args) - offsetof(typeof(args), argv)) / sizeof(args.argv[0])))

Definition at line 389 of file app.h.

Referenced by filter(), gosub_exec(), load_values_config(), and peek_read().

#define BEGIN_OPTIONS   {

Definition at line 445 of file app.h.

#define END_OPTIONS   }

Definition at line 446 of file app.h.


Typedef Documentation

typedef int(* ast_ivr_callback)(struct ast_channel *chan, char *option, void *cbdata)

Callback function for IVR.

Returns:
returns 0 on completion, -1 on hangup or digit if interrupted

Definition at line 42 of file app.h.


Enumeration Type Documentation

Enumerator:
AST_GETDATA_FAILED 
AST_GETDATA_COMPLETE 
AST_GETDATA_TIMEOUT 
AST_GETDATA_INTERRUPTED 
AST_GETDATA_EMPTY_END_TERMINATED 

indicates a user terminated empty string rather than an empty string resulting from a timeout or other factors

Definition at line 260 of file app.h.

                        {
   AST_GETDATA_FAILED = -1,
   AST_GETDATA_COMPLETE = 0,
   AST_GETDATA_TIMEOUT = 1,
   AST_GETDATA_INTERRUPTED = 2,
   /*! indicates a user terminated empty string rather than an empty string resulting 
    * from a timeout or other factors */
   AST_GETDATA_EMPTY_END_TERMINATED = 3,
};
Enumerator:
AST_ACTION_UPONE 

adata is unused

AST_ACTION_EXIT 

adata is the return value for ast_ivr_menu_run if channel was not hungup

AST_ACTION_CALLBACK 

adata is an ast_ivr_callback

AST_ACTION_PLAYBACK 

adata is file to play

AST_ACTION_BACKGROUND 

adata is file to play

AST_ACTION_PLAYLIST 

adata is list of files, separated by ; to play

AST_ACTION_MENU 

adata is a pointer to an ast_ivr_menu

AST_ACTION_REPEAT 

adata is max # of repeats, cast to a pointer

AST_ACTION_RESTART 

adata is like repeat, but resets repeats to 0

AST_ACTION_TRANSFER 

adata is a string with exten

[@context]
AST_ACTION_WAITOPTION 

adata is a timeout, or 0 for defaults

AST_ACTION_NOOP 

adata is unused

AST_ACTION_BACKLIST 

adata is list of files separated by ; allows interruption

Definition at line 44 of file app.h.

             {
   AST_ACTION_UPONE, /*!< adata is unused */
   AST_ACTION_EXIT,  /*!< adata is the return value for ast_ivr_menu_run if channel was not hungup */
   AST_ACTION_CALLBACK, /*!< adata is an ast_ivr_callback */
   AST_ACTION_PLAYBACK, /*!< adata is file to play */
   AST_ACTION_BACKGROUND,  /*!< adata is file to play */
   AST_ACTION_PLAYLIST, /*!< adata is list of files, separated by ; to play */
   AST_ACTION_MENU,  /*!< adata is a pointer to an ast_ivr_menu */
   AST_ACTION_REPEAT,   /*!< adata is max # of repeats, cast to a pointer */
   AST_ACTION_RESTART,  /*!< adata is like repeat, but resets repeats to 0 */
   AST_ACTION_TRANSFER, /*!< adata is a string with exten\verbatim[@context]\endverbatim */
   AST_ACTION_WAITOPTION,  /*!< adata is a timeout, or 0 for defaults */
   AST_ACTION_NOOP,  /*!< adata is unused */
   AST_ACTION_BACKLIST, /*!< adata is list of files separated by ; allows interruption */
} ast_ivr_action;
Enumerator:
AST_LOCK_SUCCESS 
AST_LOCK_TIMEOUT 
AST_LOCK_PATH_NOT_FOUND 
AST_LOCK_FAILURE 

Definition at line 270 of file app.h.

Type of locking to use in ast_lock_path / ast_unlock_path.

Enumerator:
AST_LOCK_TYPE_LOCKFILE 
AST_LOCK_TYPE_FLOCK 

Definition at line 278 of file app.h.


Function Documentation

unsigned int __ast_app_separate_args ( char *  buf,
char  delim,
int  remove_chars,
char **  array,
int  arraylen 
)

Separate a string into arguments in an array.

Parameters:
bufThe string to be parsed (this must be a writable copy, as it will be modified)
delimThe character to be used to delimit arguments
remove_charsRemove backslashes and quote characters, while parsing
arrayAn array of 'char *' to be filled in with pointers to the found arguments
arraylenThe number of elements in the array (i.e. the number of arguments you will accept)

Note: if there are more arguments in the string than the array will hold, the last element of the array will contain the remaining arguments, not separated.

The array will be completely zeroed by this function before it populates any entries.

Returns:
The number of arguments found, or zero if the function arguments are not valid.

Definition at line 1193 of file app.c.

References buf, paren, and quote().

Referenced by ast_app_separate_args().

{
   int argc;
   char *scan, *wasdelim = NULL;
   int paren = 0, quote = 0;

   if (!buf || !array || !arraylen) {
      return 0;
   }

   memset(array, 0, arraylen * sizeof(*array));

   scan = buf;

   for (argc = 0; *scan && (argc < arraylen - 1); argc++) {
      array[argc] = scan;
      for (; *scan; scan++) {
         if (*scan == '(') {
            paren++;
         } else if (*scan == ')') {
            if (paren) {
               paren--;
            }
         } else if (*scan == '"' && delim != '"') {
            quote = quote ? 0 : 1;
            if (remove_chars) {
               /* Remove quote character from argument */
               memmove(scan, scan + 1, strlen(scan));
               scan--;
            }
         } else if (*scan == '\\') {
            if (remove_chars) {
               /* Literal character, don't parse */
               memmove(scan, scan + 1, strlen(scan));
            } else {
               scan++;
            }
         } else if ((*scan == delim) && !paren && !quote) {
            wasdelim = scan;
            *scan++ = '\0';
            break;
         }
      }
   }

   /* If the last character in the original string was the delimiter, then
    * there is one additional argument. */
   if (*scan || (scan > buf && (scan - 1) == wasdelim)) {
      array[argc++] = scan;
   }

   return argc;
}
int ast_app_dtget ( struct ast_channel chan,
const char *  context,
char *  collect,
size_t  size,
int  maxlen,
int  timeout 
)

Present a dialtone and collect a certain length extension.

Returns:
Returns 1 on valid extension entered, -1 on hangup, or 0 on invalid extension.
Note:
Note that if 'collect' holds digits already, new digits will be appended, so be sure it's initialized properly

Present a dialtone and collect a certain length extension.

Parameters:
chanstruct.
context
collect
size
maxlen
timeouttimeout in seconds
Returns:
0 if extension does not exist, 1 if extension exists

Definition at line 116 of file app.c.

References ast_exists_extension(), ast_get_indication_tone(), ast_ignore_pattern(), ast_log(), ast_matchmore_extension(), ast_playtones_start(), ast_playtones_stop(), ast_tone_zone_sound_unref(), ast_waitfordigit(), ast_channel::cid, ast_callerid::cid_num, ast_tone_zone_sound::data, ast_pbx::dtimeoutms, LOG_NOTICE, ast_channel::pbx, and ast_channel::zone.

Referenced by builtin_atxfer(), builtin_blindtransfer(), and grab_transfer().

{
   struct ast_tone_zone_sound *ts;
   int res = 0, x = 0;

   if (maxlen > size) {
      maxlen = size;
   }

   if (!timeout && chan->pbx) {
      timeout = chan->pbx->dtimeoutms / 1000.0;
   } else if (!timeout) {
      timeout = 5;
   }

   if ((ts = ast_get_indication_tone(chan->zone, "dial"))) {
      res = ast_playtones_start(chan, 0, ts->data, 0);
      ts = ast_tone_zone_sound_unref(ts);
   } else {
      ast_log(LOG_NOTICE, "Huh....? no dial for indications?\n");
   }

   for (x = strlen(collect); x < maxlen; ) {
      res = ast_waitfordigit(chan, timeout);
      if (!ast_ignore_pattern(context, collect)) {
         ast_playtones_stop(chan);
      }
      if (res < 1) {
         break;
      }
      if (res == '#') {
         break;
      }
      collect[x++] = res;
      if (!ast_matchmore_extension(chan, context, collect, 1, chan->cid.cid_num)) {
         break;
      }
   }

   if (res >= 0) {
      res = ast_exists_extension(chan, context, collect, 1, chan->cid.cid_num) ? 1 : 0;
   }

   return res;
}
int ast_app_getdata ( struct ast_channel c,
const char *  prompt,
char *  s,
int  maxlen,
int  timeout 
)

Plays a stream and gets DTMF data from a channel.

Parameters:
cWhich channel one is interacting with
promptFile to pass to ast_streamfile (the one that you wish to play). It is also valid for this to be multiple files concatenated by "&". For example, "file1&file2&file3".
sThe location where the DTMF data will be stored
maxlenMax Length of the data
timeoutTimeout length waiting for data(in milliseconds). Set to 0 for standard timeout(six seconds), or -1 for no time out.

This function was designed for application programmers for situations where they need to play a message and then get some DTMF data in response to the message. If a digit is pressed during playback, it will immediately break out of the message and continue execution of your code.

Plays a stream and gets DTMF data from a channel.

Parameters:
cThe channel to read from
promptThe file to stream to the channel
sThe string to read in to. Must be at least the size of your length
maxlenHow many digits to read (maximum)
timeoutset timeout to 0 for "standard" timeouts. Set timeout to -1 for "ludicrous time" (essentially never times out)

Definition at line 170 of file app.c.

References AST_GETDATA_EMPTY_END_TERMINATED, ast_readstring(), ast_strdupa, ast_streamfile(), ast_strlen_zero(), ast_pbx::dtimeoutms, ast_channel::language, ast_channel::pbx, ast_pbx::rtimeoutms, and strsep().

Referenced by auth_exec(), conf_exec(), dictate_exec(), find_conf(), login_exec(), read_exec(), testclient_exec(), testserver_exec(), and vm_exec().

{
   int res = 0, to, fto;
   char *front, *filename;

   /* XXX Merge with full version? XXX */

   if (maxlen)
      s[0] = '\0';

   if (!prompt)
      prompt = "";

   filename = ast_strdupa(prompt);
   while ((front = strsep(&filename, "&"))) {
      if (!ast_strlen_zero(front)) {
         res = ast_streamfile(c, front, c->language);
         if (res)
            continue;
      }
      if (ast_strlen_zero(filename)) {
         /* set timeouts for the last prompt */
         fto = c->pbx ? c->pbx->rtimeoutms : 6000;
         to = c->pbx ? c->pbx->dtimeoutms : 2000;

         if (timeout > 0) {
            fto = to = timeout;
         }
         if (timeout < 0) {
            fto = to = 1000000000;
         }
      } else {
         /* there is more than one prompt, so
          * get rid of the long timeout between
          * prompts, and make it 50ms */
         fto = 50;
         to = c->pbx ? c->pbx->dtimeoutms : 2000;
      }
      res = ast_readstring(c, s, maxlen, to, fto, "#");
      if (res == AST_GETDATA_EMPTY_END_TERMINATED) {
         return res;
      }
      if (!ast_strlen_zero(s)) {
         return res;
      }
   }

   return res;
}
int ast_app_getdata_full ( struct ast_channel c,
char *  prompt,
char *  s,
int  maxlen,
int  timeout,
int  audiofd,
int  ctrlfd 
)

Full version with audiofd and controlfd. NOTE: returns '2' on ctrlfd available, not '1' like other full functions.

Definition at line 223 of file app.c.

References ast_readstring_full(), ast_streamfile(), ast_strlen_zero(), and ast_channel::language.

Referenced by handle_getdata().

{
   int res, to = 2000, fto = 6000;

   if (!ast_strlen_zero(prompt)) {
      res = ast_streamfile(c, prompt, c->language);
      if (res < 0) {
         return res;
      }
   }

   if (timeout > 0) {
      fto = to = timeout;
   }
   if (timeout < 0) {
      fto = to = 1000000000;
   }

   res = ast_readstring_full(c, s, maxlen, to, fto, "#", audiofd, ctrlfd);

   return res;
}
int ast_app_group_get_count ( const char *  group,
const char *  category 
)

Get the current channel count of the specified group and category.

Definition at line 1086 of file app.c.

References AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_strlen_zero(), ast_group_info::category, ast_group_info::group, and ast_group_info::group_list.

Referenced by group_count_function_read().

{
   struct ast_group_info *gi = NULL;
   int count = 0;

   if (ast_strlen_zero(group)) {
      return 0;
   }

   AST_RWLIST_RDLOCK(&groups);
   AST_RWLIST_TRAVERSE(&groups, gi, group_list) {
      if (!strcasecmp(gi->group, group) && (ast_strlen_zero(category) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))) {
         count++;
      }
   }
   AST_RWLIST_UNLOCK(&groups);

   return count;
}
struct ast_group_info* ast_app_group_list_head ( void  ) [read]

Get the head of the group count list.

Definition at line 1180 of file app.c.

References AST_RWLIST_FIRST.

Referenced by group_count_function_read(), group_function_read(), group_list_function_read(), and group_show_channels().

{
   return AST_RWLIST_FIRST(&groups);
}
int ast_app_group_list_rdlock ( void  )

Read Lock the group count list.

Definition at line 1175 of file app.c.

References AST_RWLIST_RDLOCK.

Referenced by group_count_function_read(), group_function_read(), group_list_function_read(), and group_show_channels().

{
   return AST_RWLIST_RDLOCK(&groups);
}
int ast_app_group_list_unlock ( void  )

Unlock the group count list.

Definition at line 1185 of file app.c.

References AST_RWLIST_UNLOCK.

Referenced by group_count_function_read(), group_function_read(), group_list_function_read(), and group_show_channels().

{
   return AST_RWLIST_UNLOCK(&groups);
}
int ast_app_group_list_wrlock ( void  )

Write Lock the group count list.

Definition at line 1170 of file app.c.

References AST_RWLIST_WRLOCK.

{
   return AST_RWLIST_WRLOCK(&groups);
}
int ast_app_group_match_get_count ( const char *  groupmatch,
const char *  category 
)

Get the current channel count of all groups that match the specified pattern and category.

Definition at line 1106 of file app.c.

References AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_strlen_zero(), ast_group_info::category, ast_group_info::group, and ast_group_info::group_list.

Referenced by group_match_count_function_read().

{
   struct ast_group_info *gi = NULL;
   regex_t regexbuf;
   int count = 0;

   if (ast_strlen_zero(groupmatch)) {
      return 0;
   }

   /* if regex compilation fails, return zero matches */
   if (regcomp(&regexbuf, groupmatch, REG_EXTENDED | REG_NOSUB)) {
      return 0;
   }

   AST_RWLIST_RDLOCK(&groups);
   AST_RWLIST_TRAVERSE(&groups, gi, group_list) {
      if (!regexec(&regexbuf, gi->group, 0, NULL, 0) && (ast_strlen_zero(category) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))) {
         count++;
      }
   }
   AST_RWLIST_UNLOCK(&groups);

   regfree(&regexbuf);

   return count;
}
int ast_app_group_set_channel ( struct ast_channel chan,
const char *  data 
)

Set the group for a channel, splitting the provided data into group and category, if specified.

Definition at line 1039 of file app.c.

References ast_app_group_split_group(), AST_RWLIST_INSERT_TAIL, AST_RWLIST_REMOVE_CURRENT, AST_RWLIST_TRAVERSE_SAFE_BEGIN, AST_RWLIST_TRAVERSE_SAFE_END, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_strlen_zero(), calloc, ast_group_info::category, chan, ast_group_info::chan, free, ast_group_info::group, ast_group_info::group_list, and len().

Referenced by dial_exec_full(), and group_function_write().

{
   int res = 0;
   char group[80] = "", category[80] = "";
   struct ast_group_info *gi = NULL;
   size_t len = 0;

   if (ast_app_group_split_group(data, group, sizeof(group), category, sizeof(category))) {
      return -1;
   }

   /* Calculate memory we will need if this is new */
   len = sizeof(*gi) + strlen(group) + 1;
   if (!ast_strlen_zero(category)) {
      len += strlen(category) + 1;
   }

   AST_RWLIST_WRLOCK(&groups);
   AST_RWLIST_TRAVERSE_SAFE_BEGIN(&groups, gi, group_list) {
      if ((gi->chan == chan) && ((ast_strlen_zero(category) && ast_strlen_zero(gi->category)) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))) {
         AST_RWLIST_REMOVE_CURRENT(group_list);
         free(gi);
         break;
      }
   }
   AST_RWLIST_TRAVERSE_SAFE_END;

   if (ast_strlen_zero(group)) {
      /* Enable unsetting the group */
   } else if ((gi = calloc(1, len))) {
      gi->chan = chan;
      gi->group = (char *) gi + sizeof(*gi);
      strcpy(gi->group, group);
      if (!ast_strlen_zero(category)) {
         gi->category = (char *) gi + sizeof(*gi) + strlen(group) + 1;
         strcpy(gi->category, category);
      }
      AST_RWLIST_INSERT_TAIL(&groups, gi, group_list);
   } else {
      res = -1;
   }

   AST_RWLIST_UNLOCK(&groups);

   return res;
}
int ast_app_group_split_group ( const char *  data,
char *  group,
int  group_max,
char *  category,
int  category_max 
)

Split a group string into group and category, returning a default category if none is provided.

Definition at line 1012 of file app.c.

References ast_copy_string(), and ast_strlen_zero().

Referenced by ast_app_group_set_channel(), group_count_function_read(), and group_match_count_function_read().

{
   int res = 0;
   char tmp[256];
   char *grp = NULL, *cat = NULL;

   if (!ast_strlen_zero(data)) {
      ast_copy_string(tmp, data, sizeof(tmp));
      grp = tmp;
      if ((cat = strchr(tmp, '@'))) {
         *cat++ = '\0';
      }
   }

   if (!ast_strlen_zero(grp)) {
      ast_copy_string(group, grp, group_max);
   } else {
      *group = '\0';
   }

   if (!ast_strlen_zero(cat)) {
      ast_copy_string(category, cat, category_max);
   }

   return res;
}
int ast_app_group_update ( struct ast_channel oldchan,
struct ast_channel newchan 
)
int ast_app_has_voicemail ( const char *  mailbox,
const char *  folder 
)

Determine if a given mailbox has any voicemail If folder is NULL, defaults to "INBOX". If folder is "INBOX", includes the number of messages in the "Urgent" folder.

Return values:
1Mailbox has voicemail
0No new voicemail in specified mailbox
-1Failure
Since:
1.0

Definition at line 274 of file app.c.

References ast_has_voicemail_func, and ast_verb.

Referenced by action_mailboxstatus(), has_voicemail(), notify_new_message(), play_dialtone(), poll_mailbox(), run_externnotify(), skinny_register(), and unistim_send_mwi_to_peer().

{
   static int warned = 0;
   if (ast_has_voicemail_func) {
      return ast_has_voicemail_func(mailbox, folder);
   }

   if (warned++ % 10 == 0) {
      ast_verb(3, "Message check requested for mailbox %s/folder %s but voicemail not loaded.\n", mailbox, folder ? folder : "INBOX");
   }
   return 0;
}
int ast_app_inboxcount ( const char *  mailbox,
int *  newmsgs,
int *  oldmsgs 
)

Determine number of new/old messages in a mailbox.

Since:
1.0
Parameters:
[in]mailboxMailbox specification in the format mbox[][&mbox2[]][...]
[out]newmsgsNumber of messages in the "INBOX" folder. Includes number of messages in the "Urgent" folder, if any.
[out]oldmsgsNumber of messages in the "Old" folder.
Return values:
0Success
-1Failure

Definition at line 288 of file app.c.

References ast_inboxcount_func, and ast_verb.

Referenced by sip_send_mwi_to_peer(), and update_registry().

{
   static int warned = 0;
   if (newmsgs) {
      *newmsgs = 0;
   }
   if (oldmsgs) {
      *oldmsgs = 0;
   }
   if (ast_inboxcount_func) {
      return ast_inboxcount_func(mailbox, newmsgs, oldmsgs);
   }

   if (warned++ % 10 == 0) {
      ast_verb(3, "Message count requested for mailbox %s but voicemail not loaded.\n", mailbox);
   }

   return 0;
}
int ast_app_inboxcount2 ( const char *  mailbox,
int *  urgentmsgs,
int *  newmsgs,
int *  oldmsgs 
)

Determine number of urgent/new/old messages in a mailbox.

Parameters:
[in]mailboxthe mailbox context to use
[out]urgentmsgsthe urgent message count
[out]newmsgsthe new message count
[out]oldmsgsthe old message count
Returns:
Returns 0 for success, negative upon error
Since:
1.6.1

Definition at line 308 of file app.c.

References ast_inboxcount2_func, ast_inboxcount_func, and ast_verb.

Referenced by action_mailboxcount(), notify_new_message(), and vm_execmain().

{
   static int warned = 0;
   if (newmsgs) {
      *newmsgs = 0;
   }
   if (oldmsgs) {
      *oldmsgs = 0;
   }
   if (urgentmsgs) {
      *urgentmsgs = 0;
   }
   if (ast_inboxcount_func) {
      return ast_inboxcount2_func(mailbox, urgentmsgs, newmsgs, oldmsgs);
   }

   if (warned++ % 10 == 0) {
      ast_verb(3, "Message count requested for mailbox %s but voicemail not loaded.\n", mailbox);
   }

   return 0;
}
int ast_app_messagecount ( const char *  context,
const char *  mailbox,
const char *  folder 
)

Check number of messages in a given context, mailbox, and folder.

Since:
1.4
Parameters:
[in]contextMailbox context
[in]mailboxMailbox number
[in]folderMailbox folder
Returns:
Number of messages in the given context, mailbox, and folder. If folder is NULL, folder "INBOX" is assumed. If folder is "INBOX", includes number of messages in the "Urgent" folder.

Definition at line 339 of file app.c.

References ast_messagecount_func, and ast_verb.

Referenced by acf_vmcount_exec().

{
   static int warned = 0;
   if (ast_messagecount_func) {
      return ast_messagecount_func(context, mailbox, folder);
   }

   if (!warned) {
      warned++;
      ast_verb(3, "Message count requested for mailbox %s@%s/%s but voicemail not loaded.\n", mailbox, context, folder);
   }

   return 0;
}
void ast_app_options2str64 ( const struct ast_app_option options,
struct ast_flags64 flags,
char *  buf,
size_t  len 
)

Given a list of options array, return an option string based on passed flags.

Parameters:
optionsThe array of possible options declared with AST_APP_OPTIONS
flagsThe flags of the options that you wish to populate the buffer with
bufThe buffer to fill with the string of options
lenThe maximum length of buf

Definition at line 1906 of file app.c.

References ast_test_flag64, and len().

{
   unsigned int i, found = 0;
   for (i = 32; i < 128 && found < len; i++) {
      if (ast_test_flag64(flags, options[i].flag)) {
         buf[found++] = i;
      }
   }
   buf[found] = '\0';
}
int ast_app_parse_options ( const struct ast_app_option options,
struct ast_flags flags,
char **  args,
char *  optstr 
)

Parses a string containing application options and sets flags/arguments.

Parameters:
optionsThe array of possible options declared with AST_APP_OPTIONS
flagsThe flag structure to have option flags set
argsThe array of argument pointers to hold arguments found
optstrThe string containing the options to be parsed
Returns:
zero for success, non-zero if an error occurs
See also:
AST_APP_OPTIONS

Definition at line 1896 of file app.c.

References parse_options().

Referenced by app_exec(), auth_exec(), bridge_exec(), cdr_read(), cdr_write(), chanspy_exec(), conf_exec(), confbridge_exec(), controlplayback_exec(), directory_exec(), disa_exec(), dundi_query_read(), dundifunc_read(), extenspy_exec(), find_conf_realtime(), forkcdr_exec(), handle_options(), hint_read(), minivm_accmess_exec(), minivm_greet_exec(), minivm_record_exec(), mixmonitor_exec(), page_exec(), park_call_exec(), pbx_builtin_background(), pbx_builtin_resetcdr(), pbx_builtin_waitexten(), read_exec(), readexten_exec(), realtime_common(), record_exec(), sendurl_exec(), sla_trunk_exec(), smdi_msg_retrieve_read(), sms_exec(), softhangup_exec(), speech_background(), vm_exec(), and vm_execmain().

{
   return parse_options(options, flags, args, optstr, 32);
}
int ast_app_parse_options64 ( const struct ast_app_option options,
struct ast_flags64 flags,
char **  args,
char *  optstr 
)

Parses a string containing application options and sets flags/arguments.

Parameters:
optionsThe array of possible options declared with AST_APP_OPTIONS
flagsThe 64-bit flag structure to have option flags set
argsThe array of argument pointers to hold arguments found
optstrThe string containing the options to be parsed
Returns:
zero for success, non-zero if an error occurs
See also:
AST_APP_OPTIONS

Definition at line 1901 of file app.c.

References parse_options().

Referenced by dial_exec_full().

{
   return parse_options(options, flags, args, optstr, 64);
}
int ast_app_sayname ( struct ast_channel chan,
const char *  mailbox,
const char *  context 
)

Given a mailbox and context, play that mailbox owner's name to the channel specified.

Parameters:
[in]chanChannel on which to play the name
[in]mailboxMailbox number from which to retrieve the recording
[in]contextMailbox context from which to locate the mailbox number
Return values:
0Name played without interruption
dtmfASCII value of the DTMF which interrupted playback.
-1Unable to locate mailbox or hangup occurred.
Since:
1.6.1

Definition at line 331 of file app.c.

References ast_sayname_func.

Referenced by common_exec(), and play_mailbox_owner().

{
   if (ast_sayname_func) {
      return ast_sayname_func(chan, mailbox, context);
   }
   return -1;
}
void ast_close_fds_above_n ( int  n)

Common routine for child processes, to close all fds prior to exec(2)

Parameters:
[in]nstarting file descriptor number for closing all higher file descriptors
Since:
1.6.1

Definition at line 2032 of file app.c.

References dir, and errno.

Referenced by app_exec(), ast_safe_system(), icesencode(), launch_script(), main(), mp3play(), NBScatplay(), send_waveform_to_fd(), spawn_mp3(), spawn_ras(), and vm_check_password_shell().

{
#ifdef HAVE_CLOSEFROM
   closefrom(n + 1);
#else
   long x, null;
   struct rlimit rl;
   DIR *dir;
   char path[16], *result;
   struct dirent *entry;
   snprintf(path, sizeof(path), "/proc/%d/fd", (int) getpid());
   if ((dir = opendir(path))) {
      while ((entry = readdir(dir))) {
         /* Skip . and .. */
         if (entry->d_name[0] == '.') {
            continue;
         }
         if ((x = strtol(entry->d_name, &result, 10)) && x > n) {
            close(x);
         }
      }
      closedir(dir);
   } else {
      getrlimit(RLIMIT_NOFILE, &rl);
      if (rl.rlim_cur > 65535) {
         /* A more reasonable value */
         rl.rlim_cur = 65535;
      }
      null = open("/dev/null", O_RDONLY);
      for (x = n + 1; x < rl.rlim_cur; x++) {
         if (x != null) {
            /* Side effect of dup2 is that it closes any existing fd without error.
             * This prevents valgrind and other debugging tools from sending up
             * false error reports. */
            while (dup2(null, x) < 0 && errno == EINTR);
            close(x);
         }
      }
      close(null);
   }
#endif
}
int ast_control_streamfile ( struct ast_channel chan,
const char *  file,
const char *  fwd,
const char *  rev,
const char *  stop,
const char *  pause,
const char *  restart,
int  skipms,
long *  offsetms 
)

Stream a file with fast forward, pause, reverse, restart.

Parameters:
chan
filefilename
fwd,rev,stop,pause,restart,skipms,offsetmsBefore calling this function, set this to be the number of ms to start from the beginning of the file. When the function returns, it will be the number of ms from the beginning where the playback stopped. Pass NULL if you don't care.

Definition at line 536 of file app.c.

References ast_channel::_state, ast_answer(), ast_debug, ast_seekstream(), AST_STATE_UP, ast_stopstream(), ast_streamfile(), ast_tellstream(), ast_verb, ast_waitfordigit(), ast_waitstream_fr(), ast_channel::language, and ast_channel::stream.

Referenced by controlplayback_exec(), handle_controlstreamfile(), and wait_file().

{
   char *breaks = NULL;
   char *end = NULL;
   int blen = 2;
   int res;
   long pause_restart_point = 0;
   long offset = 0;

   if (offsetms) {
      offset = *offsetms * 8; /* XXX Assumes 8kHz */
   }

   if (stop) {
      blen += strlen(stop);
   }
   if (suspend) {
      blen += strlen(suspend);
   }
   if (restart) {
      blen += strlen(restart);
   }

   if (blen > 2) {
      breaks = alloca(blen + 1);
      breaks[0] = '\0';
      if (stop) {
         strcat(breaks, stop);
      }
      if (suspend) {
         strcat(breaks, suspend);
      }
      if (restart) {
         strcat(breaks, restart);
      }
   }
   if (chan->_state != AST_STATE_UP) {
      res = ast_answer(chan);
   }

   if (file) {
      if ((end = strchr(file, ':'))) {
         if (!strcasecmp(end, ":end")) {
            *end = '\0';
            end++;
         }
      }
   }

   for (;;) {
      ast_stopstream(chan);
      res = ast_streamfile(chan, file, chan->language);
      if (!res) {
         if (pause_restart_point) {
            ast_seekstream(chan->stream, pause_restart_point, SEEK_SET);
            pause_restart_point = 0;
         }
         else if (end || offset < 0) {
            if (offset == -8) {
               offset = 0;
            }
            ast_verb(3, "ControlPlayback seek to offset %ld from end\n", offset);

            ast_seekstream(chan->stream, offset, SEEK_END);
            end = NULL;
            offset = 0;
         } else if (offset) {
            ast_verb(3, "ControlPlayback seek to offset %ld\n", offset);
            ast_seekstream(chan->stream, offset, SEEK_SET);
            offset = 0;
         }
         res = ast_waitstream_fr(chan, breaks, fwd, rev, skipms);
      }

      if (res < 1) {
         break;
      }

      /* We go at next loop if we got the restart char */
      if (restart && strchr(restart, res)) {
         ast_debug(1, "we'll restart the stream here at next loop\n");
         pause_restart_point = 0;
         continue;
      }

      if (suspend && strchr(suspend, res)) {
         pause_restart_point = ast_tellstream(chan->stream);
         for (;;) {
            ast_stopstream(chan);
            if (!(res = ast_waitfordigit(chan, 1000))) {
               continue;
            } else if (res == -1 || strchr(suspend, res) || (stop && strchr(stop, res))) {
               break;
            }
         }
         if (res == *suspend) {
            res = 0;
            continue;
         }
      }

      if (res == -1) {
         break;
      }

      /* if we get one of our stop chars, return it to the calling function */
      if (stop && strchr(stop, res)) {
         break;
      }
   }

   if (pause_restart_point) {
      offset = pause_restart_point;
   } else {
      if (chan->stream) {
         offset = ast_tellstream(chan->stream);
      } else {
         offset = -8;  /* indicate end of file */
      }
   }

   if (offsetms) {
      *offsetms = offset / 8; /* samples --> ms ... XXX Assumes 8 kHz */
   }

   /* If we are returning a digit cast it as char */
   if (res > 0 || chan->stream) {
      res = (char)res;
   }

   ast_stopstream(chan);

   return res;
}
int ast_dtmf_stream ( struct ast_channel chan,
struct ast_channel peer,
const char *  digits,
int  between,
unsigned int  duration 
)

Send DTMF to a channel.

Parameters:
chanThe channel that will receive the DTMF frames
peer(optional) Peer channel that will be autoserviced while the primary channel is receiving DTMF
digitsThis is a string of characters representing the DTMF digits to be sent to the channel. Valid characters are "0123456789*#abcdABCD". Note: You can pass arguments 'f' or 'F', if you want to Flash the channel (if supported by the channel), or 'w' to add a 500 millisecond pause to the DTMF sequence.
betweenThis is the number of milliseconds to wait in between each DTMF digit. If zero milliseconds is specified, then the default value of 100 will be used.
durationThis is the duration that each DTMF digit should have.

Definition at line 354 of file app.c.

References ast_autoservice_start(), ast_autoservice_stop(), ast_channel_start_silence_generator(), ast_channel_stop_silence_generator(), AST_CONTROL_FLASH, ast_indicate(), ast_log(), ast_opt_transmit_silence, ast_safe_sleep(), ast_senddigit(), ast_waitfor(), and LOG_WARNING.

Referenced by ast_bridge_call(), bridge_channel_dtmf_stream(), dial_exec_full(), handle_cli_misdn_send_digit(), senddtmf_exec(), testclient_exec(), and testserver_exec().

{
   const char *ptr;
   int res = 0;
   struct ast_silence_generator *silgen = NULL;

   if (!between) {
      between = 100;
   }

   if (peer) {
      res = ast_autoservice_start(peer);
   }

   if (!res) {
      res = ast_waitfor(chan, 100);
   }

   /* ast_waitfor will return the number of remaining ms on success */
   if (res < 0) {
      if (peer) {
         ast_autoservice_stop(peer);
      }
      return res;
   }

   if (ast_opt_transmit_silence) {
      silgen = ast_channel_start_silence_generator(chan);
   }

   for (ptr = digits; *ptr; ptr++) {
      if (*ptr == 'w') {
         /* 'w' -- wait half a second */
         if ((res = ast_safe_sleep(chan, 500))) {
            break;
         }
      } else if (strchr("0123456789*#abcdfABCDF", *ptr)) {
         /* Character represents valid DTMF */
         if (*ptr == 'f' || *ptr == 'F') {
            /* ignore return values if not supported by channel */
            ast_indicate(chan, AST_CONTROL_FLASH);
         } else {
            ast_senddigit(chan, *ptr, duration);
         }
         /* pause between digits */
         if ((res = ast_safe_sleep(chan, between))) {
            break;
         }
      } else {
         ast_log(LOG_WARNING, "Illegal DTMF character '%c' in string. (0-9*#aAbBcCdD allowed)\n", *ptr);
      }
   }

   if (peer) {
      /* Stop autoservice on the peer channel, but don't overwrite any error condition
         that has occurred previously while acting on the primary channel */
      if (ast_autoservice_stop(peer) && !res) {
         res = -1;
      }
   }

   if (silgen) {
      ast_channel_stop_silence_generator(chan, silgen);
   }

   return res;
}
int ast_get_encoded_char ( const char *  stream,
char *  result,
size_t *  consumed 
)

Decode an encoded control or extended ASCII character.

Returns:
Returns a pointer to the result string

Definition at line 1917 of file app.c.

References ast_debug, ast_log(), ast_strlen_zero(), and LOG_ERROR.

Referenced by ast_get_encoded_str(), ast_str_get_encoded_str(), cut_internal(), filter(), and function_fieldqty().

{
   int i;
   *consumed = 1;
   *result = 0;
   if (ast_strlen_zero(stream)) {
      *consumed = 0;
      return -1;
   }

   if (*stream == '\\') {
      *consumed = 2;
      switch (*(stream + 1)) {
      case 'n':
         *result = '\n';
         break;
      case 'r':
         *result = '\r';
         break;
      case 't':
         *result = '\t';
         break;
      case 'x':
         /* Hexadecimal */
         if (strchr("0123456789ABCDEFabcdef", *(stream + 2)) && *(stream + 2) != '\0') {
            *consumed = 3;
            if (*(stream + 2) <= '9') {
               *result = *(stream + 2) - '0';
            } else if (*(stream + 2) <= 'F') {
               *result = *(stream + 2) - 'A' + 10;
            } else {
               *result = *(stream + 2) - 'a' + 10;
            }
         } else {
            ast_log(LOG_ERROR, "Illegal character '%c' in hexadecimal string\n", *(stream + 2));
            return -1;
         }

         if (strchr("0123456789ABCDEFabcdef", *(stream + 3)) && *(stream + 3) != '\0') {
            *consumed = 4;
            *result <<= 4;
            if (*(stream + 3) <= '9') {
               *result += *(stream + 3) - '0';
            } else if (*(stream + 3) <= 'F') {
               *result += *(stream + 3) - 'A' + 10;
            } else {
               *result += *(stream + 3) - 'a' + 10;
            }
         }
         break;
      case '0':
         /* Octal */
         *consumed = 2;
         for (i = 2; ; i++) {
            if (strchr("01234567", *(stream + i)) && *(stream + i) != '\0') {
               (*consumed)++;
               ast_debug(5, "result was %d, ", *result);
               *result <<= 3;
               *result += *(stream + i) - '0';
               ast_debug(5, "is now %d\n", *result);
            } else {
               break;
            }
         }
         break;
      default:
         *result = *(stream + 1);
      }
   } else {
      *result = *stream;
      *consumed = 1;
   }
   return 0;
}
char* ast_get_encoded_str ( const char *  stream,
char *  result,
size_t  result_len 
)

Decode a stream of encoded control or extended ASCII characters.

Definition at line 1992 of file app.c.

References ast_get_encoded_char().

Referenced by listfilter(), sip_addheader(), and sip_new().

{
   char *cur = result;
   size_t consumed;

   while (cur < result + result_size - 1 && !ast_get_encoded_char(stream, cur, &consumed)) {
      cur++;
      stream += consumed;
   }
   *cur = '\0';
   return result;
}
void ast_install_vm_functions ( int(*)(const char *mailbox, const char *folder)  has_voicemail_func,
int(*)(const char *mailbox, int *newmsgs, int *oldmsgs)  inboxcount_func,
int(*)(const char *mailbox, int *urgentmsgs, int *newmsgs, int *oldmsgs)  inboxcount2_func,
int(*)(const char *context, const char *mailbox, const char *folder)  messagecount_func,
int(*)(struct ast_channel *chan, const char *mailbox, const char *context sayname_func 
)

Set voicemail function callbacks.

Parameters:
[in]inboxcount2_funcset function pointer
[in]sayname_funcset function pointer
[in]inboxcount_funcset function pointer
[in]messagecount_funcset function pointer
Version:
1.6.1 Added inboxcount2_func, sayname_func

Definition at line 252 of file app.c.

References ast_has_voicemail_func, ast_inboxcount2_func, ast_inboxcount_func, ast_messagecount_func, and ast_sayname_func.

Referenced by load_module().

{
   ast_has_voicemail_func = has_voicemail_func;
   ast_inboxcount_func = inboxcount_func;
   ast_inboxcount2_func = inboxcount2_func;
   ast_messagecount_func = messagecount_func;
   ast_sayname_func = sayname_func;
}
int ast_ivr_menu_run ( struct ast_channel c,
struct ast_ivr_menu menu,
void *  cbdata 
)

Runs an IVR menu.

Returns:
returns 0 on successful completion, -1 on hangup, or -2 on user error in menu

Definition at line 1775 of file app.c.

References ast_ivr_menu_run_internal().

Referenced by skel_exec().

{
   int res = ast_ivr_menu_run_internal(chan, menu, cbdata);
   /* Hide internal coding */
   return res > 0 ? 0 : res;
}
int ast_linear_stream ( struct ast_channel chan,
const char *  filename,
int  fd,
int  allowoverride 
)

Stream a filename (or file descriptor) as a generator.

Definition at line 506 of file app.c.

References linear_state::allowoverride, ast_activate_generator(), ast_calloc, ast_config_AST_DATA_DIR, ast_copy_string(), ast_log(), ast_strlen_zero(), linear_state::autoclose, errno, linear_state::fd, linearstream, and LOG_WARNING.

{
   struct linear_state *lin;
   char tmpf[256];
   int res = -1;
   int autoclose = 0;
   if (fd < 0) {
      if (ast_strlen_zero(filename)) {
         return -1;
      }
      autoclose = 1;
      if (filename[0] == '/') {
         ast_copy_string(tmpf, filename, sizeof(tmpf));
      } else {
         snprintf(tmpf, sizeof(tmpf), "%s/%s/%s", ast_config_AST_DATA_DIR, "sounds", filename);
      }
      if ((fd = open(tmpf, O_RDONLY)) < 0) {
         ast_log(LOG_WARNING, "Unable to open file '%s': %s\n", tmpf, strerror(errno));
         return -1;
      }
   }
   if ((lin = ast_calloc(1, sizeof(*lin)))) {
      lin->fd = fd;
      lin->allowoverride = allowoverride;
      lin->autoclose = autoclose;
      res = ast_activate_generator(chan, &linearstream, lin);
   }
   return res;
}
enum AST_LOCK_RESULT ast_lock_path ( const char *  path)

Lock a filesystem path.

Parameters:
paththe path to be locked
Returns:
one of AST_LOCK_RESULT values

Definition at line 1447 of file app.c.

References AST_LOCK_FAILURE, ast_lock_path_flock(), ast_lock_path_lockfile(), ast_lock_type, AST_LOCK_TYPE_FLOCK, and AST_LOCK_TYPE_LOCKFILE.

Referenced by vm_lock_path().

{
   enum AST_LOCK_RESULT r = AST_LOCK_FAILURE;

   switch (ast_lock_type) {
   case AST_LOCK_TYPE_LOCKFILE:
      r = ast_lock_path_lockfile(path);
      break;
   case AST_LOCK_TYPE_FLOCK:
      r = ast_lock_path_flock(path);
      break;
   }

   return r;
}
int ast_play_and_prepend ( struct ast_channel chan,
char *  playfile,
char *  recordfile,
int  maxtime_sec,
char *  fmt,
int *  duration,
int  beep,
int  silencethreshold,
int  maxsilence_ms 
)

Record a message and prepend the message to the given record file after playing the optional playfile (or a beep), storing the duration in 'duration' and with a maximum permitted silence time in milliseconds of 'maxsilence' under 'silencethreshold' or use '-1' for either or both parameters for defaults.

Definition at line 1005 of file app.c.

References __ast_play_and_record(), default_acceptdtmf, and default_canceldtmf.

Referenced by vm_forwardoptions().

{
   return __ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, beep, silencethreshold, maxsilence, NULL, 1, default_acceptdtmf, default_canceldtmf);
}
int ast_play_and_record ( struct ast_channel chan,
const char *  playfile,
const char *  recordfile,
int  maxtime_sec,
const char *  fmt,
int *  duration,
int  silencethreshold,
int  maxsilence_ms,
const char *  path 
)

Record a file for a max amount of time (in seconds), in a given list of formats separated by '|', outputting the duration of the recording, and with a maximum
permitted silence time in milliseconds of 'maxsilence' under 'silencethreshold' or use '-1' for either or both parameters for defaults. calls ast_unlock_path() on 'path' if passed.

Definition at line 1000 of file app.c.

References __ast_play_and_record(), default_acceptdtmf, and default_canceldtmf.

Referenced by app_exec(), ast_record_review(), conf_run(), and setup_privacy_args().

{
   return __ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, 0, silencethreshold, maxsilence, path, 0, default_acceptdtmf, default_canceldtmf);
}
int ast_play_and_record_full ( struct ast_channel chan,
const char *  playfile,
const char *  recordfile,
int  maxtime_sec,
const char *  fmt,
int *  duration,
int  silencethreshold,
int  maxsilence_ms,
const char *  path,
const char *  acceptdtmf,
const char *  canceldtmf 
)

Definition at line 995 of file app.c.

References __ast_play_and_record(), default_acceptdtmf, default_canceldtmf, and S_OR.

Referenced by play_record_review().

{
   return __ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, 0, silencethreshold, maxsilence, path, 0, S_OR(acceptdtmf, default_acceptdtmf), S_OR(canceldtmf, default_canceldtmf));
}
char* ast_read_textfile ( const char *  file)

Read a file into asterisk.

Definition at line 1782 of file app.c.

References ast_free, ast_log(), ast_malloc, errno, and LOG_WARNING.

Referenced by file_read(), and readfile_exec().

{
   int fd, count = 0, res;
   char *output = NULL;
   struct stat filesize;

   if (stat(filename, &filesize) == -1) {
      ast_log(LOG_WARNING, "Error can't stat %s\n", filename);
      return NULL;
   }

   count = filesize.st_size + 1;

   if ((fd = open(filename, O_RDONLY)) < 0) {
      ast_log(LOG_WARNING, "Cannot open file '%s' for reading: %s\n", filename, strerror(errno));
      return NULL;
   }

   if ((output = ast_malloc(count))) {
      res = read(fd, output, count - 1);
      if (res == count - 1) {
         output[res] = '\0';
      } else {
         ast_log(LOG_WARNING, "Short read of %s (%d of %d): %s\n", filename, res, count - 1, strerror(errno));
         ast_free(output);
         output = NULL;
      }
   }

   close(fd);

   return output;
}
int ast_record_review ( struct ast_channel chan,
const char *  playfile,
const char *  recordfile,
int  maxtime,
const char *  fmt,
int *  duration,
const char *  path 
)

Allow to record message and have a review option.

Definition at line 1479 of file app.c.

References AST_DIGIT_ANY, ast_dsp_get_threshold_from_settings(), ast_log(), ast_play_and_record(), ast_play_and_wait(), ast_stream_and_wait(), ast_verb, ast_waitfordigit(), LOG_WARNING, maxsilence, silencethreshold, and THRESHOLD_SILENCE.

Referenced by conf_run().

{
   int silencethreshold;
   int maxsilence = 0;
   int res = 0;
   int cmd = 0;
   int max_attempts = 3;
   int attempts = 0;
   int recorded = 0;
   int message_exists = 0;
   /* Note that urgent and private are for flagging messages as such in the future */

   /* barf if no pointer passed to store duration in */
   if (!duration) {
      ast_log(LOG_WARNING, "Error ast_record_review called without duration pointer\n");
      return -1;
   }

   cmd = '3';   /* Want to start by recording */

   silencethreshold = ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE);

   while ((cmd >= 0) && (cmd != 't')) {
      switch (cmd) {
      case '1':
         if (!message_exists) {
            /* In this case, 1 is to record a message */
            cmd = '3';
            break;
         } else {
            ast_stream_and_wait(chan, "vm-msgsaved", "");
            cmd = 't';
            return res;
         }
      case '2':
         /* Review */
         ast_verb(3, "Reviewing the recording\n");
         cmd = ast_stream_and_wait(chan, recordfile, AST_DIGIT_ANY);
         break;
      case '3':
         message_exists = 0;
         /* Record */
         ast_verb(3, "R%secording\n", recorded == 1 ? "e-r" : "");
         recorded = 1;
         if ((cmd = ast_play_and_record(chan, playfile, recordfile, maxtime, fmt, duration, silencethreshold, maxsilence, path)) == -1) {
            /* User has hung up, no options to give */
            return cmd;
         }
         if (cmd == '0') {
            break;
         } else if (cmd == '*') {
            break;
         } else {
            /* If all is well, a message exists */
            message_exists = 1;
            cmd = 0;
         }
         break;
      case '4':
      case '5':
      case '6':
      case '7':
      case '8':
      case '9':
      case '*':
      case '#':
         cmd = ast_play_and_wait(chan, "vm-sorry");
         break;
      default:
         if (message_exists) {
            cmd = ast_play_and_wait(chan, "vm-review");
         } else {
            if (!(cmd = ast_play_and_wait(chan, "vm-torerecord"))) {
               cmd = ast_waitfordigit(chan, 600);
            }
         }

         if (!cmd) {
            cmd = ast_waitfordigit(chan, 6000);
         }
         if (!cmd) {
            attempts++;
         }
         if (attempts > max_attempts) {
            cmd = 't';
         }
      }
   }
   if (cmd == 't') {
      cmd = 0;
   }
   return cmd;
}
void ast_replace_sigchld ( void  )

Replace the SIGCHLD handler.

Normally, Asterisk has a SIGCHLD handler that is cleaning up all zombie processes from forking elsewhere in Asterisk. However, if you want to wait*() on the process to retrieve information about it's exit status, then this signal handler needs to be temporarily replaced.

Code that executes this function *must* call ast_unreplace_sigchld() after it is finished doing the wait*().

Definition at line 991 of file asterisk.c.

References ast_mutex_lock(), ast_mutex_unlock(), null_sig_handler, safe_system_level, safe_system_lock, and safe_system_prev_handler.

Referenced by ast_safe_fork(), and ast_safe_system().

{
   unsigned int level;

   ast_mutex_lock(&safe_system_lock);
   level = safe_system_level++;

   /* only replace the handler if it has not already been done */
   if (level == 0) {
      sigaction(SIGCHLD, &null_sig_handler, &safe_system_prev_handler);
   }

   ast_mutex_unlock(&safe_system_lock);
}
int ast_safe_fork ( int  stop_reaper)

Common routine to safely fork without a chance of a signal handler firing badly in the child.

Parameters:
[in]stop_reaperflag to determine if sigchld handler is replaced or not
Since:
1.6.1

Definition at line 2075 of file app.c.

References ast_calloc, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log(), ast_pthread_create_background, AST_PTHREADT_NULL, ast_replace_sigchld(), errno, zombie::list, LOG_ERROR, LOG_WARNING, zombie::pid, and shaun_of_the_dead().

Referenced by app_exec(), icesencode(), launch_script(), mp3play(), NBScatplay(), send_waveform_to_fd(), spawn_mp3(), spawn_ras(), statpost(), and vm_check_password_shell().

{
   sigset_t signal_set, old_set;
   int pid;

   /* Don't let the default signal handler for children reap our status */
   if (stop_reaper) {
      ast_replace_sigchld();
   }

   sigfillset(&signal_set);
   pthread_sigmask(SIG_BLOCK, &signal_set, &old_set);

   pid = fork();

   if (pid != 0) {
      /* Fork failed or parent */
      pthread_sigmask(SIG_SETMASK, &old_set, NULL);
      if (!stop_reaper && pid > 0) {
         struct zombie *cur = ast_calloc(1, sizeof(*cur));
         if (cur) {
            cur->pid = pid;
            AST_LIST_LOCK(&zombies);
            AST_LIST_INSERT_TAIL(&zombies, cur, list);
            AST_LIST_UNLOCK(&zombies);
            if (shaun_of_the_dead_thread == AST_PTHREADT_NULL) {
               if (ast_pthread_create_background(&shaun_of_the_dead_thread, NULL, shaun_of_the_dead, NULL)) {
                  ast_log(LOG_ERROR, "Shaun of the Dead wants to kill zombies, but can't?!!\n");
                  shaun_of_the_dead_thread = AST_PTHREADT_NULL;
               }
            }
         }
      }
      return pid;
   } else {
      /* Child */
#ifdef HAVE_CAP
      cap_t cap = cap_from_text("cap_net_admin-eip");

      if (cap_set_proc(cap)) {
         ast_log(LOG_WARNING, "Unable to remove capabilities.\n");
      }
      cap_free(cap);
#endif

      /* Before we unblock our signals, return our trapped signals back to the defaults */
      signal(SIGHUP, SIG_DFL);
      signal(SIGCHLD, SIG_DFL);
      signal(SIGINT, SIG_DFL);
      signal(SIGURG, SIG_DFL);
      signal(SIGTERM, SIG_DFL);
      signal(SIGPIPE, SIG_DFL);
      signal(SIGXFSZ, SIG_DFL);

      /* unblock important signal handlers */
      if (pthread_sigmask(SIG_UNBLOCK, &signal_set, NULL)) {
         ast_log(LOG_WARNING, "unable to unblock signals: %s\n", strerror(errno));
         _exit(1);
      }

      return pid;
   }
}
void ast_safe_fork_cleanup ( void  )

Common routine to cleanup after fork'ed process is complete (if reaping was stopped)

Since:
1.6.1

Definition at line 2139 of file app.c.

References ast_unreplace_sigchld().

Referenced by agi_exec_full(), and run_ras().

int ast_safe_system ( const char *  s)

Safely spawn an external program while closing file descriptors.

Note:
This replaces the system call in all Asterisk modules

Definition at line 1021 of file asterisk.c.

References ast_close_fds_above_n(), ast_log(), ast_opt_high_priority, ast_replace_sigchld(), ast_set_priority(), ast_unreplace_sigchld(), errno, LOG_WARNING, status, WEXITSTATUS, and WIFEXITED.

Referenced by add_email_attachment(), alarmreceiver_exec(), ast_monitor_stop(), consolehandler(), filestream_destructor(), mixmonitor_thread(), notify_message(), process_text_line(), remoteconsolehandler(), rotate_file(), run_externnotify(), sendmail(), sendpage(), system_exec_helper(), and vm_change_password_shell().

{
   pid_t pid;
   int res;
   struct rusage rusage;
   int status;

#if defined(HAVE_WORKING_FORK) || defined(HAVE_WORKING_VFORK)
   ast_replace_sigchld();

#ifdef HAVE_WORKING_FORK
   pid = fork();
#else
   pid = vfork();
#endif   

   if (pid == 0) {
#ifdef HAVE_CAP
      cap_t cap = cap_from_text("cap_net_admin-eip");

      if (cap_set_proc(cap)) {
         /* Careful with order! Logging cannot happen after we close FDs */
         ast_log(LOG_WARNING, "Unable to remove capabilities.\n");
      }
      cap_free(cap);
#endif
#ifdef HAVE_WORKING_FORK
      if (ast_opt_high_priority)
         ast_set_priority(0);
      /* Close file descriptors and launch system command */
      ast_close_fds_above_n(STDERR_FILENO);
#endif
      execl("/bin/sh", "/bin/sh", "-c", s, (char *) NULL);
      _exit(1);
   } else if (pid > 0) {
      for (;;) {
         res = wait4(pid, &status, 0, &rusage);
         if (res > -1) {
            res = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
            break;
         } else if (errno != EINTR) 
            break;
      }
   } else {
      ast_log(LOG_WARNING, "Fork failed: %s\n", strerror(errno));
      res = -1;
   }

   ast_unreplace_sigchld();
#else /* !defined(HAVE_WORKING_FORK) && !defined(HAVE_WORKING_VFORK) */
   res = -1;
#endif

   return res;
}
void ast_set_lock_type ( enum AST_LOCK_TYPE  type)

Set the type of locks used by ast_lock_path()

Parameters:
typethe locking type to use

Definition at line 1442 of file app.c.

References ast_lock_type, and type.

Referenced by ast_readconfig().

int ast_str_get_encoded_str ( struct ast_str **  str,
int  maxlen,
const char *  stream 
)

Decode a stream of encoded control or extended ASCII characters.

Definition at line 2005 of file app.c.

References ast_get_encoded_char(), ast_str_buffer(), ast_str_make_space(), ast_str_set(), ast_str_size(), ast_str_update(), buf, and zombie::next.

Referenced by system_exec_helper().

{
   char next, *buf;
   size_t offset = 0;
   size_t consumed;

   if (strchr(stream, '\\')) {
      while (!ast_get_encoded_char(stream, &next, &consumed)) {
         if (offset + 2 > ast_str_size(*str) && maxlen > -1) {
            ast_str_make_space(str, maxlen > 0 ? maxlen : (ast_str_size(*str) + 48) * 2 - 48);
         }
         if (offset + 2 > ast_str_size(*str)) {
            break;
         }
         buf = ast_str_buffer(*str);
         buf[offset++] = next;
         stream += consumed;
      }
      buf = ast_str_buffer(*str);
      buf[offset++] = '\0';
      ast_str_update(*str);
   } else {
      ast_str_set(str, maxlen, "%s", stream);
   }
   return 0;
}
AST_THREADSTORAGE_EXTERNAL ( ast_str_thread_global_buf  )
void ast_uninstall_vm_functions ( void  )
void ast_unreplace_sigchld ( void  )

Restore the SIGCHLD handler.

This function is called after a call to ast_replace_sigchld. It restores the SIGCHLD handler that cleans up any zombie processes.

Definition at line 1006 of file asterisk.c.

References ast_mutex_lock(), ast_mutex_unlock(), safe_system_level, safe_system_lock, and safe_system_prev_handler.

Referenced by ast_safe_fork_cleanup(), and ast_safe_system().

{
   unsigned int level;

   ast_mutex_lock(&safe_system_lock);
   level = --safe_system_level;

   /* only restore the handler if we are the last one */
   if (level == 0) {
      sigaction(SIGCHLD, &safe_system_prev_handler, NULL);
   }

   ast_mutex_unlock(&safe_system_lock);
}