Mercurial > gnulib
view lib/areadlinkat.c @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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/* areadlinkat.c -- readlinkat wrapper to return malloc'd link name Unlike xreadlinkat, only call exit on failure to change directory. Copyright (C) 2001, 2003-2007, 2009-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* Written by Jim Meyering <jim@meyering.net>, and Bruno Haible <bruno@clisp.org>, and Eric Blake <ebb9@byu.net>. */ #include <config.h> /* Specification. */ #include "areadlink.h" #include "careadlinkat.h" #if HAVE_READLINKAT /* Call readlinkat to get the symbolic link value of FILENAME relative to FD. Return a pointer to that NUL-terminated string in malloc'd storage. If readlinkat fails, return NULL and set errno (although failure to change directory will issue a diagnostic and exit). If allocation fails, or if the link value is longer than SIZE_MAX :-), return NULL and set errno to ENOMEM. */ char * areadlinkat (int fd, char const *filename) { return careadlinkat (fd, filename, NULL, 0, NULL, readlinkat); } #else /* !HAVE_READLINKAT */ /* It is more efficient to change directories only once and call areadlink, rather than repeatedly call the replacement readlinkat. */ # define AT_FUNC_NAME areadlinkat # define AT_FUNC_F1 areadlink # define AT_FUNC_POST_FILE_PARAM_DECLS /* empty */ # define AT_FUNC_POST_FILE_ARGS /* empty */ # define AT_FUNC_RESULT char * # define AT_FUNC_FAIL NULL # include "at-func.c" # undef AT_FUNC_NAME # undef AT_FUNC_F1 # undef AT_FUNC_POST_FILE_PARAM_DECLS # undef AT_FUNC_POST_FILE_ARGS # undef AT_FUNC_RESULT # undef AT_FUNC_FAIL #endif /* !HAVE_READLINKAT */