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/*
* Copyright (c) 1988 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)system.c 5.10 (Berkeley) 2/23/91";*/
static char *rcsid = "$Id: system.c,v 1.1 1998/07/21 13:22:19 peter Exp $";
#endif /* LIBC_SCCS and not lint */
#include <pthread.h>
#include <pthread/paths.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <signal.h>
#include <stdlib.h>
#include <stddef.h>
#include <unistd.h>
extern char **environ;
system(command)
const char *command;
{
char *argp[] = {"sh", "-c", "*to be filled in*", NULL};
void (*intsave)(), (*quitsave)(), (*signal())();
sigset_t tmp_mask, old_mask;
int pstat;
pid_t pid;
if (!command) /* just checking... */
return(1);
argp[2] = (char *) command;
sigemptyset(&tmp_mask);
sigaddset(&tmp_mask, SIGCHLD);
pthread_sigmask(SIG_BLOCK, &tmp_mask, &old_mask);
switch(pid = fork()) {
case -1: /* error */
(void)pthread_sigmask(SIG_SETMASK, &old_mask, NULL);
return(-1);
case 0: /* child */
(void)pthread_sigmask(SIG_SETMASK, &old_mask, NULL);
execve(_PATH_BSHELL, argp, environ);
_exit(127);
}
intsave = pthread_signal(SIGINT, SIG_IGN);
quitsave = pthread_signal(SIGQUIT, SIG_IGN);
pid = waitpid(pid, (int *)&pstat, 0);
(void)pthread_sigmask(SIG_SETMASK, &old_mask, NULL);
(void)pthread_signal(SIGQUIT, quitsave);
(void)pthread_signal(SIGINT, intsave);
return(pid == -1 ? -1 : pstat);
}
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