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/*
*
* $Id: exec.c,v 1.4 2006/01/26 18:00:27 bogdan_iancu Exp $
*
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of openser, a free SIP server.
*
* openser is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* openser is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* History
* --------
* 2003-02-28 scratchpad compatibility abandoned (jiri)
* 2003-01-28 scratchpad removed
* 2004-07-21 rewrite uri done via action() (bogdan)
*/
#include <stdio.h>
#include <strings.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/types.h>
/*
#include <sys/resource.h>
*/
#include <sys/wait.h>
#include "../../mem/mem.h"
#include "../../error.h"
#include "../../config.h"
#include "../../parser/msg_parser.h"
#include "../../dprint.h"
#include "../../dset.h"
#include "../../action.h"
int exec_msg(struct sip_msg *msg, char *cmd )
{
FILE *pipe;
int exit_status;
int ret;
ret=-1; /* pessimist: assume error */
pipe=popen( cmd, "w" );
if (pipe==NULL) {
LOG(L_ERR, "ERROR: exec_msg: cannot open pipe: %s\n",
cmd);
ser_error=E_EXEC;
return -1;
}
if (fwrite(msg->buf, 1, msg->len, pipe)!=msg->len) {
LOG(L_ERR, "ERROR: exec_msg: error writing to pipe\n");
ser_error=E_EXEC;
goto error01;
}
/* success */
ret=1;
error01:
if (ferror(pipe)) {
LOG(L_ERR, "ERROR: exec_str: error in pipe: %s\n",
strerror(errno));
ser_error=E_EXEC;
ret=-1;
}
exit_status=pclose(pipe);
if (WIFEXITED(exit_status)) { /* exited properly .... */
/* return false if script exited with non-zero status */
if (WEXITSTATUS(exit_status)!=0) ret=-1;
} else { /* exited erroneously */
LOG(L_ERR, "ERROR: exec_msg: cmd %s failed. "
"exit_status=%d, errno=%d: %s\n",
cmd, exit_status, errno, strerror(errno) );
ret=-1;
}
return ret;
}
int exec_str(struct sip_msg *msg, char *cmd, char *param, int param_len) {
struct action act;
int cmd_len;
FILE *pipe;
char *cmd_line;
int ret;
int l1;
char uri_line[MAX_URI_SIZE+1];
int uri_cnt;
str uri;
int exit_status;
/* pessimist: assume error by default */
ret=-1;
l1=strlen(cmd);cmd_len=l1+param_len+2;
cmd_line=pkg_malloc(cmd_len);
if (cmd_line==0) {
ret=ser_error=E_OUT_OF_MEM;
LOG(L_ERR, "ERROR: exec_str: no mem for command\n");
goto error00;
}
/* 'command parameter \0' */
memcpy(cmd_line, cmd, l1); cmd_line[l1]=' ';
memcpy(cmd_line+l1+1, param, param_len);cmd_line[l1+param_len+1]=0;
pipe=popen( cmd_line, "r" );
if (pipe==NULL) {
LOG(L_ERR, "ERROR: exec_str: cannot open pipe: %s\n",
cmd_line);
ser_error=E_EXEC;
goto error01;
}
/* read now line by line */
uri_cnt=0;
while( fgets(uri_line, MAX_URI_SIZE, pipe)!=NULL){
uri.s = uri_line;
uri.len=strlen(uri.s);
/* trim from right */
while(uri.len && (uri.s[uri.len-1]=='\r'
|| uri.s[uri.len-1]=='\n'
|| uri.s[uri.len-1]=='\t'
|| uri.s[uri.len-1]==' ' )) {
DBG("exec_str: rtrim\n");
uri.len--;
}
/* skip empty line */
if (uri.len==0) continue;
/* ZT */
uri.s[uri.len]=0;
if (uri_cnt==0) {
memset(&act, 0, sizeof(act));
act.type = SET_URI_T;
act.p1_type = STRING_ST;
act.p1.string = uri.s;
if (do_action(&act, msg)<0) {
LOG(L_ERR,"ERROR:exec_str : SET_URI_T action failed\n");
ser_error=E_OUT_OF_MEM;
goto error02;
}
} else {
if (append_branch(msg, &uri, 0, 0, Q_UNSPECIFIED, 0, 0)==-1) {
LOG(L_ERR, "ERROR: exec_str: append_branch failed;"
" too many or too long URIs?\n");
goto error02;
}
}
uri_cnt++;
}
if (uri_cnt==0) {
LOG(L_ERR, "ERROR:exec_str: no uri from %s\n", cmd_line );
goto error02;
}
/* success */
ret=1;
error02:
if (ferror(pipe)) {
LOG(L_ERR, "ERROR: exec_str: error in pipe: %s\n",
strerror(errno));
ser_error=E_EXEC;
ret=-1;
}
exit_status=pclose(pipe);
if (WIFEXITED(exit_status)) { /* exited properly .... */
/* return false if script exited with non-zero status */
if (WEXITSTATUS(exit_status)!=0) ret=-1;
} else { /* exited erroneously */
LOG(L_ERR, "ERROR: exec_str: cmd %s failed. "
"exit_status=%d, errno=%d: %s\n",
cmd, exit_status, errno, strerror(errno) );
ret=-1;
}
error01:
pkg_free(cmd_line);
error00:
return ret;
}
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