Mercurial > hg > octave-shane > gnulib-hg
annotate lib/openat.h @ 16023:dc33aa820898
New module 'fstatat', split off from module 'openat'.
* lib/openat.h (statat, lstatat): Enable only if GNULIB_FSTATAT is
defined.
* m4/fstatat.m4: New file. extracted from m4/openat.m4.
* m4/openat.m4 (gl_FUNC_OPENAT): Don't set GNULIB_FSTATAT. Don't invoke
gl_FUNC_FSTATAT.
(gl_FUNC_FSTATAT): Moved to m4/fstatat.m4.
* modules/fstatat: New file, extracted from modules/openat.
* modules/openat (Files): Remove lib/fstatat.c.
(Depends-on): Remove lstat.
(configure.ac): Remove AC_LIBOBJ of fstatat.
* modules/fstatat-tests: New file, extracted from modules/openat-tests.
* modules/openat-tests (Files): Remove tests/test-fstatat.c,
tests/test-lstat.h, tests/test-stat.h.
(Depends-on): Remove getcwd-lgpl.
(Makefile.am): Remove rules for test-fstatat.
* doc/posix-functions/fstatat.texi: Mention module 'fstatat' instead
of module 'openat'.
* NEWS: Mention the change.
* modules/getcwd (Depends-on): Add fstatat.
* modules/linkat (Depends-on): Likewise.
* modules/mkfifoat-tests (Depends-on): Likewise.
* modules/utimensat (Depends-on): Add fstatat. Remove openat.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Thu, 03 Nov 2011 12:03:53 +0100 |
| parents | ab92e00caa02 |
| children | 1ae8bbf66d04 |
| rev | line source |
|---|---|
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1 /* provide a replacement openat function |
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2 Copyright (C) 2004-2006, 2008-2011 Free Software Foundation, Inc. |
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3 |
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Change copyright notice from GPLv2+ to GPLv3+.
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4 This program is free software: you can redistribute it and/or modify |
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5 it under the terms of the GNU General Public License as published by |
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6 the Free Software Foundation; either version 3 of the License, or |
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7 (at your option) any later version. |
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8 |
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9 This program is distributed in the hope that it will be useful, |
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 GNU General Public License for more details. |
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13 |
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14 You should have received a copy of the GNU General Public License |
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15 along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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16 |
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17 /* written by Jim Meyering */ |
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18 |
| 11937 | 19 #ifndef _GL_HEADER_OPENAT |
| 20 #define _GL_HEADER_OPENAT | |
| 21 | |
| 15582 | 22 #include <fcntl.h> |
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23 |
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24 #include <sys/types.h> |
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25 #include <sys/stat.h> |
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26 #include <dirent.h> |
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27 #include <unistd.h> |
| 6527 | 28 #include <stdbool.h> |
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29 |
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30 #if !HAVE_OPENAT |
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31 |
| 6527 | 32 int openat_permissive (int fd, char const *file, int flags, mode_t mode, |
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33 int *cwd_errno); |
| 7151 | 34 bool openat_needs_fchdir (void); |
| 6527 | 35 |
| 36 #else | |
| 37 | |
| 38 # define openat_permissive(Fd, File, Flags, Mode, Cwd_errno) \ | |
| 39 openat (Fd, File, Flags, Mode) | |
| 7151 | 40 # define openat_needs_fchdir() false |
| 6527 | 41 |
| 42 #endif | |
| 43 | |
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44 _Noreturn void openat_restore_fail (int); |
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45 _Noreturn void openat_save_fail (int); |
| 7151 | 46 |
| 47 /* Using these function names makes application code | |
| 48 slightly more readable than it would be with | |
| 49 fchownat (..., 0) or fchownat (..., AT_SYMLINK_NOFOLLOW). */ | |
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50 |
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51 #if GNULIB_FCHOWNAT |
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52 |
| 7151 | 53 static inline int |
| 54 chownat (int fd, char const *file, uid_t owner, gid_t group) | |
| 55 { | |
| 56 return fchownat (fd, file, owner, group, 0); | |
| 57 } | |
| 58 | |
| 59 static inline int | |
| 60 lchownat (int fd, char const *file, uid_t owner, gid_t group) | |
| 61 { | |
| 62 return fchownat (fd, file, owner, group, AT_SYMLINK_NOFOLLOW); | |
| 63 } | |
| 64 | |
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65 #endif |
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66 |
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67 #if GNULIB_FCHMODAT |
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68 |
| 7151 | 69 static inline int |
| 70 chmodat (int fd, char const *file, mode_t mode) | |
| 71 { | |
| 72 return fchmodat (fd, file, mode, 0); | |
| 73 } | |
| 74 | |
| 75 static inline int | |
| 76 lchmodat (int fd, char const *file, mode_t mode) | |
| 77 { | |
| 78 return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW); | |
| 79 } | |
| 11937 | 80 |
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81 #endif |
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82 |
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83 #if GNULIB_FSTATAT |
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84 |
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85 static inline int |
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86 statat (int fd, char const *name, struct stat *st) |
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87 { |
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88 return fstatat (fd, name, st, 0); |
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89 } |
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90 |
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91 static inline int |
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92 lstatat (int fd, char const *name, struct stat *st) |
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93 { |
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94 return fstatat (fd, name, st, AT_SYMLINK_NOFOLLOW); |
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95 } |
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96 |
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97 #endif |
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98 |
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99 /* For now, there are no wrappers named laccessat or leuidaccessat, |
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100 since gnulib doesn't support faccessat(,AT_SYMLINK_NOFOLLOW) and |
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101 since access rights on symlinks are of limited utility. Likewise, |
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102 wrappers are not provided for accessat or euidaccessat, so as to |
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103 avoid dragging in -lgen on some platforms. */ |
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104 |
| 11937 | 105 #endif /* _GL_HEADER_OPENAT */ |