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/*
* 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 Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser 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;
}
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