From 08006c16f85ff60278c54178180fd9e7ca36d3d1 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Wed, 10 Feb 2016 21:16:28 -0600
Subject: [PATCH] msgbuf: do a better job of handling gotchas with parsing tags

---
 ircd/msgbuf.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/ircd/msgbuf.c b/ircd/msgbuf.c
index e3f53892..ab80e45c 100644
--- a/ircd/msgbuf.c
+++ b/ircd/msgbuf.c
@@ -43,7 +43,7 @@ msgbuf_parse(struct MsgBuf *msgbuf, char *line)
 
 	if (*ch == '@')
 	{
-		char *t = ch++;
+		char *t = ch + 1;
 
 		ch = strchr(ch, ' ');
 		if (ch != NULL)
@@ -54,21 +54,28 @@ msgbuf_parse(struct MsgBuf *msgbuf, char *line)
 				char *eq = strchr(t, '=');
 
 				if (next != NULL)
+				{
 					*next = '\0';
 
-				if (eq > next)
-					eq = NULL;
+					if (eq > next)
+						eq = NULL;
+				}
 
 				if (eq != NULL)
-					*eq = '\0';
+					*eq++ = '\0';
 
-				msgbuf_append_tag(msgbuf, t, eq);
+				if (*t && *t != ' ')
+					msgbuf_append_tag(msgbuf, t, eq);
+				else
+					break;
 
 				if (next != NULL)
 					t = next + 1;
 				else
 					break;
 			}
+
+			*ch++ = '\0';
 		}
 	}