pidgin: 8f2d6c51: jabber: Properly parse realm="" in DIGES...

[darkrain42 at pidgin.im]

----------------------------------------------------------------------
Revision: 8f2d6c5138602b96aef4fbfbc5b47c202951201b
Parent:   1a66fe9f8b86d69adad25c8f61b8fcbad648a8bf
Author:   darkrain42 at pidgin.im
Date:     02/02/11 00:51:09
Branch:   im.pidgin.pidgin
URL: http://d.pidgin.im/viewmtn/revision/info/8f2d6c5138602b96aef4fbfbc5b47c202951201b

Changelog: 

jabber: Properly parse realm="" in DIGEST-MD5, which is apparently valid.

On a marginally related note, the ABNF in this RFC is really ugly.
Refs #a14514.

Changes against parent 1a66fe9f8b86d69adad25c8f61b8fcbad648a8bf

  patched  ChangeLog
  patched  libpurple/protocols/jabber/auth_digest_md5.c

-------------- next part --------------
============================================================
--- ChangeLog	3097905b3e4f824fa13be5aad738c075c424d8de
+++ ChangeLog	e9fb89eede65b46eac2452f9f4b6fd80102621d2
@@ -58,6 +58,8 @@ version 2.7.10 (??/??/????):
 	  (Nikita Kozlov) (#13136)
 	* Handle Connection: Close headers for BOSH, when the server does not
 	  terminate the connection itself. (#13008)
+	* Improved parsing for DIGEST-MD5, which should resolve issues
+	  connecting to some jabberd2 servers. (#a14514)
 
 	Yahoo!/Yahoo! JAPAN:
 	* Fix a crash when an account disconnects before a p2p session is
============================================================
--- libpurple/protocols/jabber/auth_digest_md5.c	b191c64248fdc92be9eb9994f3c93d9e1fef042a
+++ libpurple/protocols/jabber/auth_digest_md5.c	180fca893988900aaa6bf35dc126a508fdd61318
@@ -78,12 +78,12 @@ GHashTable* jabber_auth_digest_md5_parse
 					val_start++;
 
 				val_end = cur;
-				while (val_end != val_start && (*val_end == ' ' || *val_end == ',' || *val_end == '\t'
+				while (val_end >= val_start && (*val_end == ' ' || *val_end == ',' || *val_end == '\t'
 						|| *val_end == '\r' || *val_end == '\n'
 						|| *val_end == '"'  || *val_end == '\0'))
 					val_end--;
 
-				if (val_start != val_end)
+				if (val_end - val_start + 1 >= 0)
 					value = g_strndup(val_start, val_end - val_start + 1);
 			}