1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
3 /* Work around an fstatat bug on Solaris 9.
5 Copyright (C) 2006, 2009-2010 Free Software Foundation, Inc.
7 This program is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* Written by Paul Eggert and Jim Meyering. */
34 /* fstatat should always follow symbolic links that end in /, but on
35 Solaris 9 it doesn't if AT_SYMLINK_NOFOLLOW is specified.
36 Likewise, trailing slash on a non-directory should be an error.
37 These are the same problems that lstat.c and stat.c address, so
38 solve it in a similar way. */
41 rpl_fstatat (int fd, char const *file, struct stat *st, int flag)
43 int result = fstatat (fd, file, st, flag);
49 if (flag & AT_SYMLINK_NOFOLLOW)
51 /* Fix lstat behavior. */
52 if (file[len - 1] != '/' || S_ISDIR (st->st_mode))
54 if (!S_ISLNK (st->st_mode))
59 result = fstatat (fd, file, st, flag & ~AT_SYMLINK_NOFOLLOW);
61 /* Fix stat behavior. */
62 if (result == 0 && !S_ISDIR (st->st_mode) && file[len - 1] == '/')
70 #else /* !HAVE_FSTATAT */
72 /* On mingw, the gnulib <sys/stat.h> defines `stat' as a function-like
73 macro; but using it in AT_FUNC_F2 causes compilation failure
74 because the preprocessor sees a use of a macro that requires two
75 arguments but is only given one. Hence, we need an inline
76 forwarder to get past the preprocessor. */
78 stat_func (char const *name, struct stat *st)
80 return stat (name, st);
83 /* Likewise, if there is no native `lstat', then the gnulib
84 <sys/stat.h> defined it as stat, which also needs adjustment. */
87 # define lstat stat_func
90 /* Replacement for Solaris' function by the same name.
91 <http://www.google.com/search?q=fstatat+site:docs.sun.com>
92 First, try to simulate it via l?stat ("/proc/self/fd/FD/FILE").
93 Failing that, simulate it via save_cwd/fchdir/(stat|lstat)/restore_cwd.
94 If either the save_cwd or the restore_cwd fails (relatively unlikely),
95 then give a diagnostic and exit nonzero.
96 Otherwise, this function works just like Solaris' fstatat. */
98 # define AT_FUNC_NAME fstatat
99 # define AT_FUNC_F1 lstat
100 # define AT_FUNC_F2 stat_func
101 # define AT_FUNC_USE_F1_COND AT_SYMLINK_NOFOLLOW
102 # define AT_FUNC_POST_FILE_PARAM_DECLS , struct stat *st, int flag
103 # define AT_FUNC_POST_FILE_ARGS , st
104 # include "at-func.c"
108 # undef AT_FUNC_USE_F1_COND
109 # undef AT_FUNC_POST_FILE_PARAM_DECLS
110 # undef AT_FUNC_POST_FILE_ARGS
112 #endif /* !HAVE_FSTATAT */