func_rand.c File Reference

Generate Random Number. More...

#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/utils.h"
#include "asterisk/app.h"

Include dependency graph for func_rand.c:

Go to the source code of this file.

Functions
static void	__reg_module (void)
static void	__unreg_module (void)
static int	acf_rand_exec (struct ast_channel *chan, const char *cmd, char *parse, char *buffer, size_t buflen)
static int	load_module (void)
static int	unload_module (void)
Variables
static struct ast_module_info __MODULE_INFO_SECTION	__mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Random number dialplan function" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, }
static struct ast_custom_function	acf_rand
static struct ast_module_info *	ast_module_info = &__mod_info

---

Detailed Description

Generate Random Number.

Author:

Claude Patry <cpatry@gmail.com>

Tilghman Lesher ( http://asterisk.drunkcoder.com/ )

Definition in file func_rand.c.

---

Function Documentation

static void __reg_module

(

void

)

[static]

Definition at line 104 of file func_rand.c.

static void __unreg_module

(

void

)

[static]

Definition at line 104 of file func_rand.c.

static int acf_rand_exec	(	struct ast_channel *	chan,
		const char *	cmd,
		char *	parse,
		char *	buffer,
		size_t	buflen
	)		[static]

Definition at line 55 of file func_rand.c.

References AST_APP_ARG, ast_debug, AST_DECLARE_APP_ARGS, ast_random(), AST_STANDARD_APP_ARGS, and ast_strlen_zero().

{
   int min_int, response_int, max_int;
   AST_DECLARE_APP_ARGS(args,
              AST_APP_ARG(min);
              AST_APP_ARG(max);
   );

   AST_STANDARD_APP_ARGS(args, parse);

   if (ast_strlen_zero(args.min) || sscanf(args.min, "%30d", &min_int) != 1)
      min_int = 0;

   if (ast_strlen_zero(args.max) || sscanf(args.max, "%30d", &max_int) != 1)
      max_int = RAND_MAX;

   if (max_int < min_int) {
      int tmp = max_int;

      max_int = min_int;
      min_int = tmp;
      ast_debug(1, "max<min\n");
   }

   response_int = min_int + (ast_random() % (max_int - min_int + 1));
   ast_debug(1, "%d was the lucky number in range [%d,%d]\n", response_int, min_int, max_int);
   snprintf(buffer, buflen, "%d", response_int);

   return 0;
}

static int load_module

(

void

)

[static]

Definition at line 99 of file func_rand.c.

References ast_custom_function_register.

{
   return ast_custom_function_register(&acf_rand);
}

static int unload_module

(

void

)

[static]

Definition at line 92 of file func_rand.c.

References ast_custom_function_unregister().

{
   ast_custom_function_unregister(&acf_rand);

   return 0;
}

---

Variable Documentation

struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Random number dialplan function" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } [static]

Definition at line 104 of file func_rand.c.

struct ast_custom_function acf_rand [static]

Initial value:

 {
   .name = "RAND",
   .read = acf_rand_exec,
}

Definition at line 87 of file func_rand.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 104 of file func_rand.c.