X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fputenv.c;h=68e5fec31b900643415d1ff7d117719c2711df77;hb=d4d84c1d916f5bff3bb72be92e9d1383a25077c1;hp=1d24a578de8b423344b910980aa59a5ccf2f49e0;hpb=57fdfd3f8ec62b105c53bcdf6f127c35c7fe7391;p=gnulib.git

diff --git a/lib/putenv.c b/lib/putenv.c
index 1d24a578d..68e5fec31 100644
--- a/lib/putenv.c
+++ b/lib/putenv.c
@@ -1,5 +1,5 @@
-/* Copyright (C) 1991, 1994, 1997, 1998, 2000, 2003, 2004, 2005, 2006, 2007
-   Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1994, 1997-1998, 2000, 2003-2011 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.
@@ -19,11 +19,8 @@
 
 #include <config.h>
 
-/* undef putenv here, because some (e.g., Solaris 10) declare putenv in
-   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).  */
-#undef putenv
-int rpl_putenv (char const *);
+/* Specification.  */
+#include <stdlib.h>
 
 #include <stddef.h>
 
@@ -34,7 +31,6 @@ int rpl_putenv (char const *);
 # define __set_errno(ev) ((errno) = (ev))
 #endif
 
-#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
@@ -48,8 +44,8 @@ extern char **environ;
 /* This lock protects against simultaneous modifications of `environ'.  */
 # include <bits/libc-lock.h>
 __libc_lock_define_initialized (static, envlock)
-# define LOCK	__libc_lock_lock (envlock)
-# define UNLOCK	__libc_lock_unlock (envlock)
+# define LOCK   __libc_lock_lock (envlock)
+# define UNLOCK __libc_lock_unlock (envlock)
 #else
 # define LOCK
 # define UNLOCK
@@ -75,13 +71,13 @@ _unsetenv (const char *name)
   while (*ep != NULL)
     if (!strncmp (*ep, name, len) && (*ep)[len] == '=')
       {
-	/* Found it.  Remove this pointer by moving later ones back.  */
-	char **dp = ep;
+        /* Found it.  Remove this pointer by moving later ones back.  */
+        char **dp = ep;
 
-	do
-	  dp[0] = dp[1];
-	while (*dp++);
-	/* Continue the loop in case NAME appears again.  */
+        do
+          dp[0] = dp[1];
+        while (*dp++);
+        /* Continue the loop in case NAME appears again.  */
       }
     else
       ++ep;
@@ -95,7 +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;
@@ -110,7 +106,7 @@ rpl_putenv (const char *string)
   size = 0;
   for (ep = environ; *ep != NULL; ++ep)
     if (!strncmp (*ep, string, name_end - string) &&
-	(*ep)[name_end - string] == '=')
+        (*ep)[name_end - string] == '=')
       break;
     else
       ++size;
@@ -120,18 +116,17 @@ rpl_putenv (const char *string)
       static char **last_environ = NULL;
       char **new_environ = (char **) malloc ((size + 2) * sizeof (char *));
       if (new_environ == NULL)
-	return -1;
+        return -1;
       (void) memcpy ((void *) new_environ, (void *) environ,
-		     size * sizeof (char *));
+                     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;
 }