2 Copyright (C) 2007-2020 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17 /* If the user's config.h happens to include <fcntl.h>, let it include only
18 the system's <fcntl.h> here, so that orig_creat doesn't recurse to
20 #define __need_system_fcntl_h
23 /* Get the original definition of creat. It might be defined as a macro. */
25 #include <sys/types.h>
26 #undef __need_system_fcntl_h
29 orig_creat (const char *filename
, mode_t mode
)
31 #if defined _WIN32 && !defined __CYGWIN__
32 return _creat (filename
, mode
);
34 return creat (filename
, mode
);
39 /* Write "fcntl.h" here, not <fcntl.h>, otherwise OSF/1 5.1 DTK cc eliminates
40 this include because of the preliminary #include <fcntl.h> above. */
45 #include <sys/types.h>
48 creat (const char *filename
, mode_t mode
)
50 #if OPEN_TRAILING_SLASH_BUG
51 /* Fail if the filename ends in a slash,
52 as POSIX says such a filename must name a directory
53 <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html#tag_04_13>:
54 "A pathname that contains at least one non-<slash> character and that
55 ends with one or more trailing <slash> characters shall not be resolved
56 successfully unless the last pathname component before the trailing
57 <slash> characters names an existing directory"
58 creat() is defined as being equivalent to open() with flags
59 O_CREAT | O_TRUNC | O_WRONLY. Therefore:
60 If the named file already exists as a directory, then creat() must fail
62 If the named file does not exist or does not name a directory, then
63 creat() must fail since creat() cannot create directories. */
65 size_t len
= strlen (filename
);
66 if (len
> 0 && filename
[len
- 1] == '/')
74 #if defined _WIN32 && !defined __CYGWIN__
75 /* Remap the 'x' bits to the 'r' bits. */
76 mode
= (mode
& ~0111) | ((mode
& 0111) << 2);
79 return orig_creat (filename
, mode
);