Libc-320.tar.gz

[apple/libc.git] / stdlib / setenv.c

diff --git a/stdlib/setenv.c b/stdlib/setenv.c
deleted file mode 100644 (file)
index 6f9b315..0000000
--- a/stdlib/setenv.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1987, 1993
- *     The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *     This product includes software developed by the University of
- *     California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <crt_externs.h>
-
-char *__findenv __P((const char *, int *)); 
-
-/*
- * setenv --
- *     Set the value of the environmental variable "name" to be
- *     "value".  If rewrite is set, replace any current value.
- */
-int
-setenv(name, value, rewrite)
-       register const char *name;
-       register const char *value;
-       int rewrite;
-{
-       static int alloced;                     /* if allocated space before */
-       register char *c;
-       int l_value, offset;
-        char ***environp = _NSGetEnviron();
-
-       if (*value == '=')                      /* no `=' in value */
-               ++value;
-       l_value = strlen(value);
-       if ((c = __findenv(name, &offset))) {   /* find if already exists */
-               if (!rewrite)
-                       return (0);
-               if (strlen(c) >= l_value) {     /* old larger; copy over */
-                       while (*c++ = *value++);
-                       return (0);
-               }
-       } else {                                        /* create new slot */
-               register int cnt;
-               register char **p;
-
-               for (p = *environp, cnt = 0; *p; ++p, ++cnt);
-               if (alloced) {                  /* just increase size */
-                       *environp = (char **)realloc((char *)*environp,
-                           (size_t)(sizeof(char *) * (cnt + 2)));
-                       if (!*environp)
-                               return (-1);
-               }
-               else {                          /* get new space */
-                       alloced = 1;            /* copy old entries into it */
-                       p = malloc((size_t)(sizeof(char *) * (cnt + 2)));
-                       if (!p)
-                               return (-1);
-                       bcopy(*environp, p, cnt * sizeof(char *));
-                       *environp = p;
-               }
-               (*environp)[cnt + 1] = NULL;
-               offset = cnt;
-       }
-       for (c = (char *)name; *c && *c != '='; ++c);   /* no `=' in name */
-       if (!((*environp)[offset] =                     /* name + `=' + value */
-           malloc((size_t)((int)(c - name) + l_value + 2))))
-               return (-1);
-       for (c = (*environp)[offset]; (*c = *name++) && *c != '='; ++c);
-       for (*c++ = '='; *c++ = *value++;);
-       return (0);
-}
-
-/*
- * unsetenv(name) --
- *     Delete environmental variable "name".
- */
-void
-unsetenv(name)
-       const char *name;
-{
-       char **environ = *_NSGetEnviron();
-       register char **p;
-       int offset;
-
-       while (__findenv(name, &offset))        /* if set multiple times */
-               for (p = &environ[offset];; ++p)
-                       if (!(*p = *(p + 1)))
-                               break;
-}