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Commit | Line | Data |
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a18f587d | 1 | /* Obsolete function to get current working directory. |
dff8da6b | 2 | Copyright (C) 1991-2024 Free Software Foundation, Inc. |
47707456 | 3 | This file is part of the GNU C Library. |
28f540f4 | 4 | |
47707456 | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 9 | |
47707456 UD |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
28f540f4 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
28f540f4 | 18 | |
28f540f4 RM |
19 | #include <errno.h> |
20 | #include <limits.h> | |
21 | #include <string.h> | |
22 | #include <unistd.h> | |
23 | ||
a18f587d | 24 | |
28f540f4 | 25 | char * |
9d46370c | 26 | getwd (char *buf) |
28f540f4 | 27 | { |
df21c858 UD |
28 | #ifndef PATH_MAX |
29 | #define PATH_MAX 1024 | |
df21c858 | 30 | #endif |
a18f587d | 31 | char tmpbuf[PATH_MAX]; |
df21c858 | 32 | |
28f540f4 RM |
33 | if (buf == NULL) |
34 | { | |
c4029823 | 35 | __set_errno (EINVAL); |
28f540f4 RM |
36 | return NULL; |
37 | } | |
38 | ||
50304ef0 | 39 | if (__getcwd (tmpbuf, PATH_MAX) == NULL) |
28f540f4 | 40 | { |
a18f587d | 41 | /* We use 1024 here since it should really be enough and because |
f65fd747 | 42 | this is a safe value. */ |
a18f587d | 43 | __strerror_r (errno, buf, 1024); |
28f540f4 RM |
44 | return NULL; |
45 | } | |
46 | ||
a18f587d UD |
47 | /* This is completely unsafe. Nobody can say how big the user |
48 | provided buffer is. Perhaps the application and the libc | |
49 | disagree about the value of PATH_MAX. */ | |
61c162b5 | 50 | return strcpy (buf, tmpbuf); |
28f540f4 | 51 | } |
a18f587d UD |
52 | |
53 | link_warning (getwd, | |
54 | "the `getwd' function is dangerous and should not be used.") |