2003-02-06 05:57:43 +00:00
|
|
|
/*
|
|
|
|
* Asterisk -- A telephony toolkit for Linux.
|
|
|
|
*
|
|
|
|
* Skeleton application
|
|
|
|
*
|
|
|
|
* Copyright (C) 1999, Mark Spencer
|
|
|
|
*
|
|
|
|
* Mark Spencer <markster@linux-support.net>
|
|
|
|
*
|
|
|
|
* This program is free software, distributed under the terms of
|
|
|
|
* the GNU General Public License
|
|
|
|
*/
|
|
|
|
|
2003-04-23 19:09:13 +00:00
|
|
|
#include <sys/types.h>
|
2003-02-06 05:57:43 +00:00
|
|
|
#include <asterisk/file.h>
|
|
|
|
#include <asterisk/logger.h>
|
|
|
|
#include <asterisk/channel.h>
|
|
|
|
#include <asterisk/pbx.h>
|
|
|
|
#include <asterisk/module.h>
|
|
|
|
#include <asterisk/pbx.h>
|
2004-06-22 19:32:52 +00:00
|
|
|
#include <asterisk/lock.h>
|
2003-02-06 05:57:43 +00:00
|
|
|
#include <stdlib.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
2004-04-15 18:41:17 +00:00
|
|
|
static char *tdesc = "(Deprecated) Save substring digits in a given variable";
|
2003-02-06 05:57:43 +00:00
|
|
|
|
|
|
|
static char *descrip =
|
2004-04-15 18:41:17 +00:00
|
|
|
" (Deprecated, use ${variable:a:b} instead)\n"
|
|
|
|
"\n"
|
2003-04-28 03:49:04 +00:00
|
|
|
" SubString(variable=string_of_digits|count1|count2): Assigns the substring\n"
|
2003-02-06 05:57:43 +00:00
|
|
|
"of string_of_digits to a given variable. Parameter count1 may be positive\n"
|
|
|
|
"or negative. If it's positive then we skip the first count1 digits from the\n"
|
|
|
|
"left. If it's negative, we move count1 digits counting from the end of\n"
|
2003-09-27 02:39:04 +00:00
|
|
|
"the string to the left. Parameter count2 implies how many digits we are\n"
|
|
|
|
"taking from the point that count1 placed us. If count2 is negative, then\n"
|
|
|
|
"that many digits are omitted from the end.\n"
|
2003-02-06 05:57:43 +00:00
|
|
|
"For example:\n"
|
|
|
|
"exten => _NXXXXXX,1,SubString,test=2564286161|0|3\n"
|
|
|
|
"assigns the area code (3 first digits) to variable test.\n"
|
|
|
|
"exten => _NXXXXXX,1,SubString,test=2564286161|-7|7\n"
|
|
|
|
"assigns the last 7 digits to variable test.\n"
|
2003-09-27 02:39:04 +00:00
|
|
|
"exten => _NXXXXXX,1,SubString,test=2564286161|0|-4\n"
|
|
|
|
"assigns all but the last 4 digits to variable test.\n"
|
2003-02-06 05:57:43 +00:00
|
|
|
"If there are no parameters it'll return with -1.\n"
|
|
|
|
"If there wrong parameters it go on and return with 0\n";
|
|
|
|
|
|
|
|
static char *app = "SubString";
|
|
|
|
|
2004-04-15 18:41:17 +00:00
|
|
|
static char *synopsis = "(Deprecated) Save substring digits in a given variable";
|
2003-02-06 05:57:43 +00:00
|
|
|
|
|
|
|
STANDARD_LOCAL_USER;
|
|
|
|
|
|
|
|
LOCAL_USER_DECL;
|
|
|
|
|
|
|
|
static int substring_exec(struct ast_channel *chan, void *data)
|
|
|
|
{
|
|
|
|
char newexten[AST_MAX_EXTENSION] = "";
|
|
|
|
char *count1, *count2;
|
|
|
|
char *first, *second, *stringp;
|
|
|
|
stringp=alloca(strlen(data)+1);
|
2003-03-18 06:00:18 +00:00
|
|
|
ast_log(LOG_WARNING, "The use of Substring application is deprecated. Please use ${variable:a:b} instead\n");
|
2003-02-06 05:57:43 +00:00
|
|
|
strncpy(stringp,data,strlen(data)+1);
|
|
|
|
if (strchr(stringp,'|')&&strchr(stringp,'=')) {
|
|
|
|
int icount1,icount2;
|
|
|
|
first=strsep(&stringp,"=");
|
|
|
|
second=strsep(&stringp,"|");
|
|
|
|
count1=strsep(&stringp,"|");
|
|
|
|
count2=strsep(&stringp,"\0");
|
|
|
|
if (!first || !second || !count1 || !count2) {
|
|
|
|
ast_log(LOG_DEBUG, "Ignoring, since there is no argument: variable or string or count1 or count2\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
icount1=atoi(count1);
|
|
|
|
icount2=atoi(count2);
|
2003-09-27 02:39:04 +00:00
|
|
|
if (icount2<0) {
|
|
|
|
icount2 = icount2 + strlen(second);
|
2003-02-06 05:57:43 +00:00
|
|
|
}
|
|
|
|
if (abs(icount1)>strlen(second)) {
|
|
|
|
ast_log(LOG_WARNING, "Limiting count1 parameter because it exceeds the length of the string\n");
|
|
|
|
if (icount1>=0)
|
|
|
|
icount1=strlen(second);
|
|
|
|
else
|
|
|
|
icount1=0;
|
|
|
|
}
|
|
|
|
if ((icount1<0 && icount2>-icount1) || (icount1>=0 && icount1+icount2>strlen(second))) {
|
|
|
|
ast_log(LOG_WARNING, "Limiting count2 parameter because it exceeds the length of the string\n");
|
|
|
|
if (icount1>=0)
|
|
|
|
icount2=strlen(second)-icount1;
|
|
|
|
else
|
|
|
|
icount2=strlen(second)+icount1;
|
|
|
|
}
|
|
|
|
if (first&&second) {
|
|
|
|
if (icount1>=0)
|
|
|
|
strncpy(newexten,second+icount1,icount2);
|
|
|
|
else
|
|
|
|
strncpy(newexten,second+strlen(second)+icount1,icount2);
|
|
|
|
pbx_builtin_setvar_helper(chan,first,newexten);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ast_log(LOG_DEBUG, "Ignoring, no parameters\n");
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int unload_module(void)
|
|
|
|
{
|
|
|
|
STANDARD_HANGUP_LOCALUSERS;
|
|
|
|
return ast_unregister_application(app);
|
|
|
|
}
|
|
|
|
|
|
|
|
int load_module(void)
|
|
|
|
{
|
|
|
|
return ast_register_application(app, substring_exec, synopsis, descrip);
|
|
|
|
}
|
|
|
|
|
|
|
|
char *description(void)
|
|
|
|
{
|
|
|
|
return tdesc;
|
|
|
|
}
|
|
|
|
|
|
|
|
int usecount(void)
|
|
|
|
{
|
|
|
|
int res;
|
|
|
|
STANDARD_USECOUNT(res);
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
char *key()
|
|
|
|
{
|
|
|
|
return ASTERISK_GPL_KEY;
|
|
|
|
}
|