X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fputenv.c;h=cc14b938955eb65279b97c735b4add8abdc0e9bb;hb=b156173b313f1903489b8c0c74292de350637f5f;hp=0b1e6644e4f2b2d5d6afffb2a1c1891a68a47137;hpb=310c41f74d42756b22ed2fcbe42b69bbe75a9ecf;p=gnulib.git

diff --git a/lib/putenv.c b/lib/putenv.c
index 0b1e6644e..cc14b9389 100644
--- a/lib/putenv.c
+++ b/lib/putenv.c
@@ -1,11 +1,12 @@
-/* Copyright (C) 1991, 1994, 1997, 1998, 2000, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1994, 1997-1998, 2000, 2003-2008
+   Free Software Foundation, Inc.
 
    NOTE: The canonical source of this file is maintained with the GNU C
    Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
 
-   This program is free software; you can redistribute it and/or modify it
+   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 2, or (at your option) any
+   Free Software Foundation; either version 3 of the License, or any
    later version.
 
    This program is distributed in the hope that it will be useful,
@@ -14,45 +15,24 @@
    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, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
+
+/* Specification.  */
+#include <stdlib.h>
 
 #include <stddef.h>
 
 /* Include errno.h *after* sys/types.h to work around header problems
    on AIX 3.2.5.  */
 #include <errno.h>
-#if !_LIBC
-# if !defined errno
-extern int errno;
-# endif
+#ifndef __set_errno
 # define __set_errno(ev) ((errno) = (ev))
 #endif
 
-/* Don't include stdlib.h because some (e.g., Solaris 2.7) declare putenv
-   with a non-const argument.  That would conflict with the declaration of
-   rpl_putenv below (due to the #define putenv rpl_putenv from config.h).  */
-
-char *malloc ();
-void free ();
-
-#if defined (__GNU_LIBRARY__) || defined (HAVE_STRING_H)
-# include <string.h>
-#endif
-#if defined (__GNU_LIBRARY__) || defined (HAVE_UNISTD_H)
-# include <unistd.h>
-#endif
-
-#if !defined (__GNU_LIBRARY__) && !defined (HAVE_STRCHR)
-# define strchr index
-#endif
-#if !defined (__GNU_LIBRARY__) && !defined (HAVE_MEMCPY)
-# define memcpy(d,s,n) bcopy ((s), (d), (n))
-#endif
+#include <string.h>
+#include <unistd.h>
 
 #if HAVE_GNU_LD
 # define environ __environ
@@ -71,12 +51,8 @@ __libc_lock_define_initialized (static, envlock)
 # define UNLOCK
 #endif
 
-#ifndef NULL
-# define NULL 0
-#endif
-
 static int
-unsetenv (const char *name)
+_unsetenv (const char *name)
 {
   size_t len;
   char **ep;
@@ -115,7 +91,7 @@ unsetenv (const char *name)
 /* Put STRING, which is of the form "NAME=VALUE", in the environment.
    If STRING contains no `=', then remove STRING from the environment.  */
 int
-rpl_putenv (const char *string)
+putenv (char *string)
 {
   const char *const name_end = strchr (string, '=');
   register size_t size;
@@ -124,7 +100,7 @@ rpl_putenv (const char *string)
   if (name_end == NULL)
     {
       /* Remove the variable from the environment.  */
-      return unsetenv (string);
+      return _unsetenv (string);
     }
 
   size = 0;
@@ -145,13 +121,12 @@ rpl_putenv (const char *string)
 		     size * sizeof (char *));
       new_environ[size] = (char *) string;
       new_environ[size + 1] = NULL;
-      if (last_environ != NULL)
-	free (last_environ);
+      free (last_environ);
       last_environ = new_environ;
       environ = new_environ;
     }
   else
-    *ep = (char *) string;
+    *ep = string;
 
   return 0;
 }