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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* LIBLDAP unescape.c -- LDAP URL un-escape routines
* We also tolerate URLs that look like: <ldapurl> and <URL:ldapurl>
*/
#include "ldap-int.h"
static int unhex(char c);
void nsldapi_hex_unescape(char* s) {
/*
* Remove URL hex escapes from s... done in place. The basic concept for
* this routine is borrowed from the WWW library HTUnEscape() routine.
*/
char* p;
for (p = s; *s != '\0'; ++s) {
if (*s == '%') {
if (*++s == '\0') {
break;
}
*p = unhex(*s) << 4;
if (*++s == '\0') {
break;
}
*p++ += unhex(*s);
} else {
*p++ = *s;
}
}
*p = '\0';
}
static int unhex(char c) {
return (c >= '0' && c <= '9'
? c - '0'
: c >= 'A' && c <= 'F' ? c - 'A' + 10 : c - 'a' + 10);
}
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