Sweden-Number/libs/port/spawn.c

54 lines
1.6 KiB
C

/*
* spawnvp function
*
* Copyright 2003 Dimitrie O. Paun
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <errno.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
int spawnvp(int mode, const char *cmdname, char *const argv[])
{
#ifndef HAVE__SPAWNVP
int pid = 0, status, wret;
if (mode != _P_OVERLAY) pid = fork();
if (pid == 0) pid = execvp(argv[0], argv);
if (pid < 0) return -1;
if (mode != _P_WAIT) return pid;
while (pid != (wret = waitpid(pid, &status, 0)))
if (wret == -1 && errno != EINTR) break;
if (pid == wret && WIFEXITED(status)) return WEXITSTATUS(status);
return 255; /* abnormal exit with an abort or an interrupt */
#else /* HAVE__SPAWNVP */
return _spawnvp(mode, cmdname, argv);
#endif /* HAVE__SPAWNVP */
}