sysdeps/nacl/readlink.c

   1 /* Read the contents of a symbolic link.  NaCl version.
   2    Copyright (C) 2015-2016 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <unistd.h>
  20 #include <nacl-interfaces.h>
  21
  22 /* Read the contents of the symbolic link PATH into no more than
  23    LEN bytes of BUF.  The contents are not null-terminated.
  24    Returns the number of characters read, or -1 for errors.  */
  25 ssize_t
  26 __readlink (const char *path, char *buf, size_t len)
  27 {
  28   size_t nread;
  29   return NACL_CALL (__nacl_irt_dev_filename.readlink (path, buf, len, &nread),
  30                     nread);
  31 }
  32 weak_alias (__readlink, readlink)