CHANNEL(callid): Give dialplan access to the callid.
[asterisk/asterisk.git] / funcs / func_rand.c
index d989b0a..bc514b8 100644 (file)
  * \ingroup functions
  */
 
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+/*** MODULEINFO
+       <support_level>core</support_level>
+ ***/
 
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/types.h>
+#include "asterisk.h"
 
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"
-#include "asterisk/logger.h"
 #include "asterisk/utils.h"
 #include "asterisk/app.h"
-#include "asterisk/options.h"
 
+/*** DOCUMENTATION
+       <function name="RAND" language="en_US">
+               <synopsis>
+                       Choose a random number in a range.                      
+               </synopsis>
+               <syntax>
+                       <parameter name="min" />
+                       <parameter name="max" />
+               </syntax>
+               <description>
+                       <para>Choose a random number between <replaceable>min</replaceable> and <replaceable>max</replaceable>. 
+                       <replaceable>min</replaceable> defaults to <literal>0</literal>, if not specified, while <replaceable>max</replaceable> defaults 
+                       to <literal>RAND_MAX</literal> (2147483647 on many systems).</para>
+                       <para>Example:  Set(junky=${RAND(1,8)});
+                       Sets junky to a random number between 1 and 8, inclusive.</para>
+               </description>
+       </function>
+ ***/
 static int acf_rand_exec(struct ast_channel *chan, const char *cmd,
                         char *parse, char *buffer, size_t buflen)
 {
@@ -52,10 +65,10 @@ static int acf_rand_exec(struct ast_channel *chan, const char *cmd,
 
        AST_STANDARD_APP_ARGS(args, parse);
 
-       if (ast_strlen_zero(args.min) || sscanf(args.min, "%d", &min_int) != 1)
+       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, "%d", &max_int) != 1)
+       if (ast_strlen_zero(args.max) || sscanf(args.max, "%30d", &max_int) != 1)
                max_int = RAND_MAX;
 
        if (max_int < min_int) {
@@ -75,14 +88,8 @@ static int acf_rand_exec(struct ast_channel *chan, const char *cmd,
 
 static struct ast_custom_function acf_rand = {
        .name = "RAND",
-       .synopsis = "Choose a random number in a range",
-       .syntax = "RAND([min][,max])",
-       .desc =
-               "Choose a random number between min and max.  Min defaults to 0, if not\n"
-               "specified, while max defaults to RAND_MAX (2147483647 on many systems).\n"
-               "  Example:  Set(junky=${RAND(1,8)}); \n"
-               "  Sets junky to a random number between 1 and 8, inclusive.\n",
        .read = acf_rand_exec,
+       .read_max = 12,
 };
 
 static int unload_module(void)