icwmp/xmpp/xmppcmd.c

80 lines
1.6 KiB
C

/*
* Copyright (C) 2018 iopsys Software Solutions AB. All rights reserved.
*
* Author: Amin Ben Ramdhane <amin.benramdhane@pivasoftware.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <strings.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>
#include <unistd.h>
static int pfds[2];
int xmpp_cmd(unsigned char dowait, int argc, ...)
{
int pid;
char *c = NULL;
va_list arg;
if (pipe(pfds) < 0)
return -1;
if ((pid = fork()) == -1)
return -1;
if (pid == 0) {
/* child */
int i;
const char *argv[64];
va_start(arg, argc);
for (i = 0; i < argc; i++)
{
argv[i] = va_arg(arg, char *);
}
argv[i] = NULL;
va_end(arg);
close(pfds[0]);
dup2(pfds[1], 1);
close(pfds[1]);
execvp(argv[0], (char **) argv);
exit(ESRCH);
} else if (pid < 0)
return -1;
/* parent */
close(pfds[1]);
if (dowait) {
int status;
while (wait(&status) != pid);
}
return 0;
}
void xmpp_cmd_close(void)
{
close(pfds[0]);
}