commit 85abfd84beee0a5fc6725624b0bd0260c7b2d856
from: Brett Smith <brett@w3.org>
date: Fri Sep 14 15:56:38 2012 UTC

Allow limited punctuation in usernames, for better PAM integration.

commit - a072180c9262f8a1c6bba6b8f0613bccc2863f48
commit + 85abfd84beee0a5fc6725624b0bd0260c7b2d856
blob - 9e1abdd59e8b0349b535b9b1299989f994a3827c
blob + 74d8b9d116b3bb71de2388a0c71838f0c86f4e29
--- src/ngircd/irc-login.c
+++ src/ngircd/irc-login.c
@@ -418,12 +418,15 @@ IRC_USER(CLIENT * Client, REQUEST * Req)
 						  Client_ID(Client),
 						  Req->command);
 
-		/* User name: only alphanumeric characters are allowed! */
+		/* User name: only alphanumeric characters and limited
+		   punctuation is allowed.*/
 		ptr = Req->argv[0];
 		while (*ptr) {
 			if ((*ptr < '0' || *ptr > '9') &&
 			    (*ptr < 'A' || *ptr > 'Z') &&
-			    (*ptr < 'a' || *ptr > 'z')) {
+			    (*ptr < 'a' || *ptr > 'z') &&
+			    (*ptr != '+') && (*ptr != '-') &&
+			    (*ptr != '.') && (*ptr != '_')) {
 				Conn_Close(Client_Conn(Client), NULL,
 					   "Invalid user name", true);
 				return DISCONNECTED;