Handle nick in use or invalid nick, add multiple nicks to configuration file to automatically try.

1 files changed, 40 insertions, 1 deletions

diff --git a/blabouncer.c b/blabouncer.c
index 0eb2519..ae62487 100644
--- a/blabouncer.c
+++ b/blabouncer.c
@@ -1,5 +1,4 @@
 // TODO:
-// - handle nick in use
 // - Might need to change channel struct nicks to be channel struct user struct with its own nick/modes/etc.
 // - Do we actually need to store the modes in the channel struct?
 // - Get CAP from server and relay to client
@@ -946,6 +945,46 @@ int processircmessage(SSL *server_ssl, char *str, int source, struct client *cli
           return 1;
         }
 
+        // Server 432 (ERR_ERRONEUSNICKNAME) or 433 (ERR_NICKNAMEINUSE) received?  See which nick we're on and try another.
+        if (strncmp(tokens[1], "432", strlen(tokens[1])) == 0 || strncmp(tokens[1], "433", strlen(tokens[1])) == 0) {
+          printf("Server 432 (ERR_ERRONEUSNICKNAME) or 433 (ERR_NICKNAMEINUSE) found and it is: %s with length %zd!  Trying another nick...\n", tokens[1], strlen(tokens[1]));
+
+          // Make sure nick3 hasn't already been tried
+          if (getconfstr("nick3", settings->conffile, settings->ircnick)) {
+            // If it's the current nick already then...
+            if (strncmp(ircdstrings->ircnick, settings->ircnick, strlen(settings->ircnick)) == 0) {
+              // ...give up
+              printf("error: server doesn't like any configured nicks, giving up.\n");
+              exit(1);
+            }
+          }
+
+          // Try nick2
+          if (!getconfstr("nick2", settings->conffile, settings->ircnick)) {
+            printf("error: server doesn't like nick and can't get 'nick2' from configuration file.\n");
+            exit(1);
+          }
+          // Have we already tried this one?  (i.e. is it the current nick)
+          if (strncmp(ircdstrings->ircnick, settings->ircnick, strlen(settings->ircnick)) == 0) {
+            // Then try nick3
+            if (!getconfstr("nick3", settings->conffile, settings->ircnick)) {
+              printf("error: server doesn't like nick or nick2 and can't get 'nick3' from configuration file.\n");
+              exit(1);
+            }
+          }
+
+          // Set whichever one we settled on as the current nick
+          strcpy(ircdstrings->ircnick, settings->ircnick);
+
+          // Try it with the server
+          char outgoingmsg[MAXDATASIZE];
+          snprintf(outgoingmsg, MAXDATASIZE, "NICK %s", ircdstrings->ircnick);
+          // sourcefd = 0 as this is a trusted message
+          sendtoserver(server_ssl, outgoingmsg, strlen(outgoingmsg), 0, clients, settings);
+
+          free(strcopyPtr);
+          return 1;
+        }
       }
 
       // Don't return if we got here because this means we didn't process something above