Annotation of embedaddon/libiconv/srclib/xreadlink.c, revision 1.1

1.1     ! misho       1: /* xreadlink.c -- readlink wrapper to return the link name in malloc'd storage
        !             2: 
        !             3:    Copyright (C) 2001, 2003-2007 Free Software Foundation, Inc.
        !             4: 
        !             5:    This program is free software: you can redistribute it and/or modify
        !             6:    it under the terms of the GNU General Public License as published by
        !             7:    the Free Software Foundation; either version 3 of the License, or
        !             8:    (at your option) any later version.
        !             9: 
        !            10:    This program is distributed in the hope that it will be useful,
        !            11:    but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            12:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            13:    GNU General Public License for more details.
        !            14: 
        !            15:    You should have received a copy of the GNU General Public License
        !            16:    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
        !            17: 
        !            18: /* Written by Jim Meyering <jim@meyering.net>
        !            19:    and Bruno Haible <bruno@clisp.org>.  */
        !            20: 
        !            21: #include <config.h>
        !            22: 
        !            23: /* Specification.  */
        !            24: #include "xreadlink.h"
        !            25: 
        !            26: #include <errno.h>
        !            27: 
        !            28: #include "areadlink.h"
        !            29: #include "xalloc.h"
        !            30: 
        !            31: /* Call readlink to get the symbolic link value of FILENAME.
        !            32:    Return a pointer to that NUL-terminated string in malloc'd storage.
        !            33:    If readlink fails, return NULL and set errno.
        !            34:    If realloc fails, or if the link value is longer than SIZE_MAX :-),
        !            35:    give a diagnostic and exit.  */
        !            36: 
        !            37: char *
        !            38: xreadlink (char const *filename)
        !            39: {
        !            40:   char *result = areadlink (filename);
        !            41:   if (result == NULL && errno == ENOMEM)
        !            42:     xalloc_die ();
        !            43:   return result;
        !            44: }

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