1 /*
2 * SPDX-License-Identifier: ISC
3 *
4 * Copyright (c) 2013-2015 Todd C. Miller <Todd.Miller@sudo.ws>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 /*
20 * This is an open source non-commercial project. Dear PVS-Studio, please check it.
21 * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
22 */
23
24 #include <config.h>
25
26 #include <sys/stat.h>
27
28 #include <stdlib.h>
29 #include <errno.h>
30
31 #include "sudo_compat.h"
32 #include "sudo_debug.h"
33 #include "sudo_gettext.h"
34 #include "sudo_util.h"
35
36 /*
37 * Parse an octal file mode in the range [0, 0777].
38 * On success, returns the parsed mode and clears errstr.
39 * On error, returns 0 and sets errstr.
40 */
41 int
sudo_strtomode_v1(const char * cp,const char ** errstr)42 sudo_strtomode_v1(const char *cp, const char **errstr)
43 {
44 char *ep;
45 long lval;
46 debug_decl(sudo_strtomode, SUDO_DEBUG_UTIL);
47
48 errno = 0;
49 lval = strtol(cp, &ep, 8);
50 if (ep == cp || *ep != '\0') {
51 if (errstr != NULL)
52 *errstr = N_("invalid value");
53 errno = EINVAL;
54 debug_return_int(0);
55 }
56 if (lval < 0 || lval > ACCESSPERMS) {
57 if (errstr != NULL)
58 *errstr = lval < 0 ? N_("value too small") : N_("value too large");
59 errno = ERANGE;
60 debug_return_int(0);
61 }
62 if (errstr != NULL)
63 *errstr = NULL;
64 debug_return_int((int)lval);
65 }
66