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/* Misc utility functions.
Copyright 2000 Keith Owens <kaos@ocs.com.au>
This file is part of the Linux modutils.
This program 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.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <unistd.h>
/*======================================================================*/
/* Clone of the system() function From Steven's Advanced Programming in a Unix
* Environment. Modified to use *argv[] and execvp to avoid shell expansion
* problems, modutils runs as root so system() is unsafe.
*/
int
xsystem(const char *file, char *const argv[])
{
pid_t pid;
int status;
if ((pid = fork()) < 0)
return(-1);
if (pid == 0) {
execvp(file, argv);
_exit(127);
}
while (waitpid(pid, &status, 0) < 0) {
if (errno != EINTR)
return(-1);
}
return(status);
}
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