+/*
+ * Ported to Linux's Second Extended File System as part of the
+ * dump and restore backup suit
+ * Remy Card <card@Linux.EU.Org>, 1994-1997
+ * Stelian Pop <pop@noos.fr>, 1999-2000
+ * Stelian Pop <pop@noos.fr> - Alcôve <www.alcove.fr>, 2000
+ */
+
+/*-
+ * Copyright (c) 1980, 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+ "$Id: system.c,v 1.1 2001/07/18 12:54:06 stelian Exp $";
+#endif /* not lint */
+
+#include <config.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+/*
+ * Executes the command in a shell.
+ * Returns -1 if an error occured, the exit status of
+ * the command on success.
+ */
+int system_command(const char *command, const char *device, int volnum) {
+ int pid, status;
+ char commandstr[4096];
+
+ pid = fork();
+ if (pid == -1) {
+ perror(" DUMP: unable to fork");
+ return -1;
+ }
+ if (pid == 0) {
+ setuid(getuid());
+ setgid(getgid());
+#if OLD_STYLE_FSCRIPT
+ snprintf(commandstr, sizeof(commandstr), "%s", command);
+#else
+ snprintf(commandstr, sizeof(commandstr), "%s %s %d", command, device, volnum);
+#endif
+ commandstr[sizeof(commandstr) - 1] = '\0';
+ execl("/bin/sh", "sh", "-c", commandstr, NULL);
+ perror("unable to execute shell");
+ exit(-1);
+ }
+ do {
+ if (waitpid(pid, &status, 0) == -1) {
+ if (errno != EINTR) {
+ perror("waitpid error");
+ return -1;
+ }
+ } else {
+ if (WIFEXITED(status))
+ return WEXITSTATUS(status);
+ else
+ return -1;
+ }
+ } while(1);
+}
+
git.wh0rd.org / dump.git / commitdiff
