2 * Amanda, The Advanced Maryland Automatic Network Disk Archiver
3 * Copyright (c) 1991-1998 University of Maryland at College Park
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of U.M. not be used in advertising or
11 * publicity pertaining to distribution of the software without specific,
12 * written prior permission. U.M. makes no representations about the
13 * suitability of this software for any purpose. It is provided "as is"
14 * without express or implied warranty.
16 * U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
18 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
20 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
21 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 * Authors: the Amanda Development Team. Its members are listed in a
24 * file named AUTHORS, in the root directory of this distribution.
27 * $Id: runtar.c,v 1.11.4.2.6.1 2002/10/27 14:31:18 martinea Exp $
29 * runs GNUTAR program as root
34 int main P((int argc, char **argv));
46 for(fd = 3; fd < FD_SETSIZE; fd++) {
48 * Make sure nobody spoofs us with a lot of extra open files
49 * that would cause an open we do to get a very high file
50 * descriptor, which in turn might be used as an index into
51 * an array (e.g. an fd_set).
61 dbprintf(("%s: version %s\n", argv[0], version()));
65 fprintf(stderr,"gnutar not available on this system.\n");
66 dbprintf(("%s: gnutar not available on this system.\n", argv[0]));
72 if(client_uid == (uid_t) -1) {
73 error("error [cannot find user %s in passwd file]\n", CLIENT_LOGIN);
77 if (getuid() != client_uid) {
78 error("error [must be invoked by %s]\n", CLIENT_LOGIN);
82 error("error [must be setuid root]\n");
86 #if !defined (DONT_SUID_ROOT)
90 dbprintf(("running: %s: ",GNUTAR));
91 for (i=0; argv[i]; i++)
92 dbprintf(("%s ", argv[i]));
95 execve(GNUTAR, argv, safe_env());
98 dbprintf(("execve of %s failed (%s)\n", GNUTAR, e));
101 fprintf(stderr, "runtar: could not exec %s: %s\n", GNUTAR, e);