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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:13 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:13 -0800
commit1767f908af327fa388b1c66883760ad851267013 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /libc/stdlib/setenv.c
parenta799b53f10e5a6fd51fef4436cfb7ec99836a516 (diff)
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auto import from //depot/cupcake/@135843
Diffstat (limited to 'libc/stdlib/setenv.c')
-rw-r--r--libc/stdlib/setenv.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/libc/stdlib/setenv.c b/libc/stdlib/setenv.c
deleted file mode 100644
index 856db5e..0000000
--- a/libc/stdlib/setenv.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/* $OpenBSD: setenv.c,v 1.9 2005/08/08 08:05:37 espie Exp $ */
-/*
- * Copyright (c) 1987 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. 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 <stdlib.h>
-#include <string.h>
-
-char *__findenv(const char *name, int *offset);
-
-extern char **environ;
-
-/*
- * setenv --
- * Set the value of the environmental variable "name" to be
- * "value". If rewrite is set, replace any current value.
- */
-int
-setenv(const char *name, const char *value, int rewrite)
-{
- static char **lastenv; /* last value of environ */
- char *C;
- int l_value, offset;
-
- if (*value == '=') /* no `=' in value */
- ++value;
- l_value = strlen(value);
- if ((C = __findenv(name, &offset))) { /* find if already exists */
- if (!rewrite)
- return (0);
- if ((int)strlen(C) >= l_value) { /* old larger; copy over */
- while ((*C++ = *value++))
- ;
- return (0);
- }
- } else { /* create new slot */
- size_t cnt;
- char **P;
-
- for (P = environ; *P != NULL; P++)
- ;
- cnt = P - environ;
- P = (char **)realloc(lastenv, sizeof(char *) * (cnt + 2));
- if (!P)
- return (-1);
- if (lastenv != environ)
- memcpy(P, environ, cnt * sizeof(char *));
- lastenv = environ = P;
- offset = cnt;
- environ[cnt + 1] = NULL;
- }
- for (C = (char *)name; *C && *C != '='; ++C)
- ; /* no `=' in name */
- if (!(environ[offset] = /* name + `=' + value */
- malloc((size_t)((int)(C - name) + l_value + 2))))
- return (-1);
- for (C = environ[offset]; (*C = *name++) && *C != '='; ++C)
- ;
- for (*C++ = '='; (*C++ = *value++); )
- ;
- return (0);
-}
-
-/*
- * unsetenv(name) --
- * Delete environmental variable "name".
- */
-int
-unsetenv(const char *name)
-{
- char **P;
- int offset;
-
- while (__findenv(name, &offset)) /* if set multiple times */
- for (P = &environ[offset];; ++P)
- if (!(*P = *(P + 1)))
- break;
-
- return 0;
-}