stdlib/secure-getenv.c

   1 /* Copyright (C) 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <stdlib.h>
  20 #include <unistd.h>
  21
  22 /* Some programs and especially the libc itself have to be careful
  23    what values to accept from the environment.  This special version
  24    checks for SUID or SGID first before doing any work.  */
  25 char *
  26 __secure_getenv (name)
  27      const char *name;
  28 {
  29   return __libc_enable_secure ? NULL : getenv (name);
  30 }