pidgin: 507bed04: Prevent an invalid read when a message s...

[sadrul at pidgin.im]

-----------------------------------------------------------------
Revision: 507bed04f6c5d4527fe68ad2ee48f01ad9760a24
Ancestor: eeef28c55dd6e7476c35edde363fb045a2d939f6
Author: sadrul at pidgin.im
Date: 2010-06-03T23:08:11
Branch: im.pidgin.pidgin
URL: http://d.pidgin.im/viewmtn/revision/info/507bed04f6c5d4527fe68ad2ee48f01ad9760a24

Modified files:
        libpurple/util.c

ChangeLog: 

Prevent an invalid read when a message starts with 'mailto:'.

-------------- next part --------------
============================================================
--- libpurple/util.c	fc2537aa2ca610ff6748b55802bfd3ff898bf7c2
+++ libpurple/util.c	fc38e7dbac7fec50b9ca8f1577d7529a16c529fb
@@ -2163,7 +2163,7 @@ purple_markup_linkify(const char *text)
 					if (t - c == 7) {
 						break;
 					}
-					if (*(t - 1) == '.')
+					if (t > text && *(t - 1) == '.')
 						t--;
 					if ((d = strstr(c + 7, "?")) != NULL && d < t)
 						url_buf = g_strndup(c + 7, d - c - 7);
@@ -2183,10 +2183,7 @@ purple_markup_linkify(const char *text)
 					c = t;
 					break;
 				}
-				if (!t)
-					break;
 				t++;
-
 			}
 		} else if (c != text && (*c == '@')) {
 			int flag;