mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
|
|
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
|
|
* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This file is part of LVM2.
|
|
*
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
|
* of the GNU General Public License v.2.
|
|
*
|
|
* 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 "lib.h"
|
|
#include "lvm-exec.h"
|
|
|
|
#include <unistd.h>
|
|
#include <sys/wait.h>
|
|
|
|
/*
|
|
* Execute and wait for external command
|
|
*/
|
|
int exec_cmd(const char *command, const char *fscmd, const char *lv_path,
|
|
const char *size)
|
|
{
|
|
pid_t pid;
|
|
int status;
|
|
|
|
log_verbose("Executing: %s %s %s %s", command, fscmd, lv_path, size);
|
|
|
|
if ((pid = fork()) == -1) {
|
|
log_error("fork failed: %s", strerror(errno));
|
|
return 0;
|
|
}
|
|
|
|
if (!pid) {
|
|
/* Child */
|
|
/* FIXME Use execve directly */
|
|
execlp(command, command, fscmd, lv_path, size, NULL);
|
|
log_sys_error("execlp", command);
|
|
exit(errno);
|
|
}
|
|
|
|
/* Parent */
|
|
if (wait4(pid, &status, 0, NULL) != pid) {
|
|
log_error("wait4 child process %u failed: %s", pid,
|
|
strerror(errno));
|
|
return 0;
|
|
}
|
|
|
|
if (!WIFEXITED(status)) {
|
|
log_error("Child %u exited abnormally", pid);
|
|
return 0;
|
|
}
|
|
|
|
if (WEXITSTATUS(status)) {
|
|
log_error("%s failed: %u", command, WEXITSTATUS(status));
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|