Mercurial > gnulib
view lib/xreadlink.c @ 40132:6bcaf5dcb02b
fdatasync: Fix compilation error on Android 4.3.
* m4/fdatasync.m4 (gl_FUNC_FDATASYNC): On platforms other than Solaris,
test whether fdatasync() exists.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Fri, 25 Jan 2019 00:15:50 +0100 |
parents | b06060465f09 |
children |
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/* xreadlink.c -- readlink wrapper to return the link name in malloc'd storage Copyright (C) 2001, 2003-2007, 2009-2019 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 <https://www.gnu.org/licenses/>. */ /* Written by Jim Meyering <jim@meyering.net> and Bruno Haible <bruno@clisp.org>. */ #include <config.h> /* Specification. */ #include "xreadlink.h" #include <errno.h> #include "areadlink.h" #include "xalloc.h" /* Call readlink to get the symbolic link value of FILENAME. Return a pointer to that NUL-terminated string in malloc'd storage. If readlink fails, return NULL and set errno. If realloc fails, or if the link value is longer than SIZE_MAX :-), give a diagnostic and exit. */ char * xreadlink (char const *filename) { char *result = areadlink (filename); if (result == NULL && errno == ENOMEM) xalloc_die (); return result; }