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author | peter <peter@FreeBSD.org> | 2008-07-12 05:00:28 +0000 |
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committer | peter <peter@FreeBSD.org> | 2008-07-12 05:00:28 +0000 |
commit | ba8f85b49c38af7bc2a9acdef5dcde2de008d25e (patch) | |
tree | ceac31a567976fd5866cb5791b059781f6e045de /contrib/bind9/lib/bind/bsd/setenv.c | |
parent | 0f328cea2580ffb8f9e363be671a517787111472 (diff) | |
download | FreeBSD-src-ba8f85b49c38af7bc2a9acdef5dcde2de008d25e.zip FreeBSD-src-ba8f85b49c38af7bc2a9acdef5dcde2de008d25e.tar.gz |
Flatten bind9 vendor work area
Diffstat (limited to 'contrib/bind9/lib/bind/bsd/setenv.c')
-rw-r--r-- | contrib/bind9/lib/bind/bsd/setenv.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/contrib/bind9/lib/bind/bsd/setenv.c b/contrib/bind9/lib/bind/bsd/setenv.c deleted file mode 100644 index ce2f063..0000000 --- a/contrib/bind9/lib/bind/bsd/setenv.c +++ /dev/null @@ -1,151 +0,0 @@ -#if defined(LIBC_SCCS) && !defined(lint) -static const char sccsid[] = "@(#)setenv.c 8.1 (Berkeley) 6/4/93"; -static const char rcsid[] = "$Id: setenv.c,v 1.1.352.1 2005/04/27 05:00:44 sra Exp $"; -#endif /* LIBC_SCCS and not lint */ - -/* - * 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 "port_before.h" - -#include <stddef.h> -#include <stdlib.h> -#include <string.h> - -#include "port_after.h" - -#if !defined(NEED_SETENV) -int __bindcompat_setenv; -#else - -extern char **environ; - -static char *findenv(const char *name, int *offset); - -/*% - * setenv -- - * Set the value of the environmental variable "name" to be - * "value". If rewrite is set, replace any current value. - */ -setenv(const char *name, const char *value, int rewrite) { - extern char **environ; - static int alloced; /*%< if allocated space before */ - 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 (strlen(c) >= l_value) { /*%< old larger; copy over */ - while (*c++ = *value++); - return (0); - } - } else { /*%< create new slot */ - int cnt; - char **p; - - for (p = environ, cnt = 0; *p; ++p, ++cnt); - if (alloced) { /*%< just increase size */ - environ = (char **)realloc((char *)environ, - (size_t)(sizeof(char *) * (cnt + 2))); - if (!environ) - 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); - memcpy(p, environ, cnt * sizeof(char *)); - environ = p; - } - environ[cnt + 1] = NULL; - offset = cnt; - } - 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". - */ -void -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; -} - -/*% - * findenv -- - * Returns pointer to value associated with name, if any, else NULL. - * Sets offset to be the offset of the name/value combination in the - * environmental array, for use by setenv(3) and unsetenv(3). - * Explicitly removes '=' in argument name. - * - * This routine *should* be a static; don't use it. - */ -static char * -findenv(const char *name, int *offset) { - const char *np; - char **p, *c; - int len; - - if (name == NULL || environ == NULL) - return (NULL); - for (np = name; *np && *np != '='; ++np) - continue; - len = np - name; - for (p = environ; (c = *p) != NULL; ++p) - if (strncmp(c, name, len) == 0 && c[len] == '=') { - *offset = p - environ; - return (c + len + 1); - } - return (NULL); -} -#endif - -/*! \file */ |