Debian: require "telnet" or "telnet-ssl" for building

[ngircd-alex.git] / src / ngircd / irc-login.c

diff --git a/src/ngircd/irc-login.c b/src/ngircd/irc-login.c
index 9e1abdd59e8b0349b535b9b1299989f994a3827c..74d8b9d116b3bb71de2388a0c71838f0c86f4e29 100644 (file)
--- a/src/ngircd/irc-login.c
+++ b/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;