Asterisk source code analysis (main function)

File: The asterisk. c file under the main directory

1,CodeFragment:

 
/* If the progname is rasterisk consider it a remote console */If (argv [0] & (strstr (argv [0], "rasterisk "))! = NULL) {ast_set_flag (& ast_options, outputs | ast_opt_flag_remote);}... case 'r': ast_set_flag (& ast_options, outputs | ast_opt_flag_remote); break;
 

Note:

 
Running the rasterisk command on the terminal is equivalent to running asterisk-R, that is, the remote connection of Asterisk.
 

2. code snippet:

 
If (getenv ("home") snprintf (filename, sizeof (filename), "% S/. asterisk_history", getenv ("home "));
 

Note: commands run in rasterisk (or Asterisk-R) are recorded in. asterisk in the user's home directory.In the history file (for example,/root/. AsteriskHistory)

Asterisk startup parameters

Code snippet:

Case 'B':/* force black background */ast_set_flag (& ast_options, ast_opt_flag_force_black_background); ast_clear_flag (& ast_options, ast_opt_flag_light_background); break;
 

Note:-B is forced to run with a black background, which is equivalent to setting forceblackbackground in the file/etc/asterisk/Asterisk. conf to yes.

Code snippet:

 
Case 'X': ast_set_flag (& ast_options, ast_opt_flag_exec_shortdes); break;
 

Note:-X can be used to configure commands such as "# EXEC" in the configuration file (for example, # exec/tmp/shelltest. SH), equivalent to the file/etc/asterisk. execincludes = yes in Conf

Code snippet:

 
Case 'C': ast_copy_string (pai_paths.config_file, optarg, sizeof (pai_paths.config_file); ast_set_flag (& ast_options, ast_opt_flag_override_config); break;
 

-:-C file uses file to replace/etc/asterisk/Asterisk. conf file InitializationProgram, The file here should be an absolute path.

Code snippet:

Case 'C': ast_set_flag (& ast_options, ast_opt_flag_no_fork | ast_opt_flag_console); break;
 

Note:-C runs in Console mode, which is equivalent to configuring console = yes in the file/etc/asterisk/Asterisk. conf.

Code snippet:

 
Case 'D': option_debug ++; ast_set_flag (& ast_options, ast_opt_flag_no_fork); break;
 

Note:

 
In-D or-DDD debugging mode, the number of D is the debugging level. For example, "-DDD" is equivalent to configuring DEBUG = 3 in the file/etc/asterisk/Asterisk. conf.
 

Code snippet:

 
Case 'E': If (sscanf (& optarg [1], "% 30ld", & option_minmemfree )! = 1) | (option_minmemfree <0) {option_minmemfree = 0;} break;
 

Note:

 
-E memory is equivalent to configuring minmemfree = memory in the file/etc/asterisk/Asterisk. conf. When the available memory in the system is lower than the preset memory value, asterisk stops receiving new calls.
 

Code snippet:

Case 'F': ast_set_flag (& ast_options, ast_opt_flag_always_fork); break;
 

Note:

 
-F is equivalent to configuring alwaysfork = yes in the file/etc/asterisk/Asterisk. conf
 

Code snippet:

 
Case 'F': ast_set_flag (& ast_options, ast_opt_flag_no_fork); break;
 

Note:

 
-F is equivalent to configuring nofork = yes in the file/etc/asterisk/Asterisk. conf
 

Code snippet:

 
Case 'G': rungroup = ast_strdupa (optarg); break;
 

Note:

 
-G group
 

Code snippet:

 
Case 'G': ast_set_flag (& ast_options, ast_opt_flag_dump_core); break;
 

Note:

 
-G fault dump Problems
 

Code snippet:

Case 'H': show_cli_help (); exit (0 );
 

Note:

 
-H: Display help information
 

Code snippet:

 
Case 'I': ast_set_flag (& ast_options, ast_opt_flag_internal_timing); break;
 

Note:-I enables internal Timing If the dahdi timer is available

Code snippet:

 
Case 'I': ast_set_flag (& ast_options, ast_opt_flag_init_keys); break;
 

Note:

 
-I initialize the encryption key at startup
 

Code snippet:

 
Case 'l': If (sscanf (optarg, "% 30lf", & option_maxload )! = 1) | (option_maxload <0.0) {option_maxload = 0.0;} break;
 

Note:

 
-L <load> limit the maximum average load before rejecting a new call
 

Code snippet:

Case 'M': If (sscanf (optarg, "% 30d", & option_maxcils )! = 1) | (option_maxcils <0) {option_maxcils = 0;} break;
 

Note:

 
-M <value> specifies the maximum number of phone numbers.
 

Code snippet:

 
Case 'M': ast_set_flag (& ast_options, ast_opt_flag_mute); break;
 

Note:

 
-M shield output in the console
 

Code snippet:

 
Case 'N': ast_set_flag (& ast_options, ast_opt_flag_no_color); break;
 

Note:-N disables the color output function, for example, asterisk-n.

Code snippet:

 
Case 'p': ast_set_flag (& ast_options, ast_opt_flag_high_priority); break;
 

Note:

 
-P runs as a Pseudo Real-Time Thread
 

Code snippet:

Case 'q': ast_set_flag (& ast_options, ast_opt_flag_quiet); break;
 

Note:

 
-Q quiet mode (Suppress output)
 

Code snippet:

 
Case 'r': ast_set_flag (& ast_options, ast_opt_flag_no_fork | ast_opt_flag_remote | ast_opt_flag_reconnect); break;
 

Note:

 
-R connects to the asterisk server of the Local Machine. After being disconnected, it will reconnect.
 

Code snippet:

 
Case 'r': ast_set_flag (& ast_options, ast_opt_flag_no_fork | ast_opt_flag_remote); break;
 

Note:

 
-R: connect to the local asterisk Server
 

Code snippet:

 
Case's ': remotesock = ast_strdupa (optarg); break;
 

Note:

 
-S <socket-File> connects to Asterisk through socket, which is valid when used together with the R parameter
 

Code snippet:

Case 'T': ast_set_flag (& ast_options, ast_opt_flag_timestamp); break;
 

Note:

 
-T display time in CLI output
 

Code snippet:

 
Case 'T': ast_set_flag (& ast_options, ast_opt_flag_cache_record_files); break;
 

-:-T record soundfiles in/var/tmp and move them where they belong after they are done

Code snippet:

 
Case 'U': runuser = ast_strdupa (optarg); break;
 

Note:

 
-U <user> Run as user <user>
 

Code snippet:

 
Case 'V': show_version (); exit (0 );
 

Note:

 
-V: display version information
 

Code snippet:

Case 'V': option_verbose ++; ast_set_flag (& ast_options, ast_opt_flag_no_fork); break;
 

Note:

 
-V: multiple values. More information is displayed.
 

Code snippet:

 
Case 'W':/* white background */ast_set_flag (& ast_options, ast_opt_flag_light_background); ast_clear_flag (& ast_options, ast_opt_flag_force_black_background); break;
 

Note:

 
-W: Adjust terminal color
 

Code snippet:

 
Case 'X': ast_set_flag (& ast_options, ast_opt_flag_exec | ast_opt_flag_no_color); xarg = ast_strdupa (optarg); break;
 

Note:

 
-X <cmd> run cli commands and use them with R parameters, for example, asterisk-Rx 'core show channels'