From 302bf1b523012e11b60425d6eee1221ebc2724eb Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <email@mattatobin.com>
Date: Sun, 3 Nov 2019 00:17:46 -0400
Subject: Issue #1258 - Part 1: Import mailnews, ldap, and mork from
 comm-esr52.9.1

---
 ldap/c-sdk/libraries/libldap/unescape.c | 84 +++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 ldap/c-sdk/libraries/libldap/unescape.c

(limited to 'ldap/c-sdk/libraries/libldap/unescape.c')

diff --git a/ldap/c-sdk/libraries/libldap/unescape.c b/ldap/c-sdk/libraries/libldap/unescape.c
new file mode 100644
index 000000000..66d5bd27f
--- /dev/null
+++ b/ldap/c-sdk/libraries/libldap/unescape.c
@@ -0,0 +1,84 @@
+/* ***** 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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