Merge branch 'dfsg-orig' into dfsg-debian

[tar] / lib / unsetenv.c

diff --git a/lib/unsetenv.c b/lib/unsetenv.c
deleted file mode 100644 (file)
index 73ea878..0000000
--- a/lib/unsetenv.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/* Copyright (C) 1992,1995-1999,2000-2002,2005-2008 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   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 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   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, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include <stdlib.h>
-
-#include <errno.h>
-#if !_LIBC
-# define __set_errno(ev) ((errno) = (ev))
-#endif
-
-#include <string.h>
-#include <unistd.h>
-
-#if !_LIBC
-# define __environ     environ
-#endif
-
-#if _LIBC
-/* 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)
-#else
-# define LOCK
-# define UNLOCK
-#endif
-
-/* In the GNU C library we must keep the namespace clean.  */
-#ifdef _LIBC
-# define unsetenv __unsetenv
-#endif
-
-
-int
-unsetenv (const char *name)
-{
-  size_t len;
-  char **ep;
-
-  if (name == NULL || *name == '\0' || strchr (name, '=') != NULL)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  len = strlen (name);
-
-  LOCK;
-
-  ep = __environ;
-  while (*ep != NULL)
-    if (!strncmp (*ep, name, len) && (*ep)[len] == '=')
-      {
-       /* 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.  */
-      }
-    else
-      ++ep;
-
-  UNLOCK;
-
-  return 0;
-}
-
-#ifdef _LIBC
-# undef unsetenv
-weak_alias (__unsetenv, unsetenv)
-#endif