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65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "lib.h"
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#include "lvm-exec.h"
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#include <unistd.h>
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#include <sys/wait.h>
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/*
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* Execute and wait for external command
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*/
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int exec_cmd(const char *command, const char *fscmd, const char *lv_path,
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const char *size)
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{
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pid_t pid;
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int status;
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log_verbose("Executing: %s %s %s %s", command, fscmd, lv_path, size);
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if ((pid = fork()) == -1) {
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log_error("fork failed: %s", strerror(errno));
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return 0;
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}
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if (!pid) {
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/* Child */
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/* FIXME Use execve directly */
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execlp(command, command, fscmd, lv_path, size, NULL);
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log_sys_error("execlp", command);
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exit(errno);
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}
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/* Parent */
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if (wait4(pid, &status, 0, NULL) != pid) {
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log_error("wait4 child process %u failed: %s", pid,
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strerror(errno));
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return 0;
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}
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if (!WIFEXITED(status)) {
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log_error("Child %u exited abnormally", pid);
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return 0;
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}
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if (WEXITSTATUS(status)) {
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log_error("%s failed: %u", command, WEXITSTATUS(status));
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return 0;
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}
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return 1;
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}
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