Add some help output for unrecognised BLABOUNCER commands.

1 files changed, 11 insertions, 3 deletions

diff --git a/blabouncer.c b/blabouncer.c
index 3cf9877..9f6f5cf 100644
--- a/blabouncer.c
+++ b/blabouncer.c
@@ -894,9 +894,10 @@ int processircmessage(SSL *server_ssl, int *clientsockfd, char *str, int source,
       // Custom BLABOUNCER command received
       // Case insensitive comparisons here since clients won't be recognising and uppercasing these commands
       if (strncasecmp(tokens[0], "BLABOUNCER", strlen(tokens[0])) == 0) {
+        printf("Client BLABOUNCER found and it is: %s with length %zd!\n", tokens[1], strlen(tokens[1]));
         // REPLAY received, send the requested number of seconds of replay to the client
         if (strncasecmp(tokens[1], "REPLAY", strlen(tokens[1])) == 0) {
-          printf("Client REPLAY (custom blabouncer command) found and it is: %s with length %zd!\n", tokens[1], strlen(tokens[1]));
+          printf("Client BLABOUNCER REPLAY (custom blabouncer command) found and it is: %s with length %zd!\n", tokens[1], strlen(tokens[1]));
           int replayseconds;
           if ((replayseconds = strtol(tokens[2], NULL, 10)) == 0) {
             printf("Invalid number of replay seconds provided by REPLAY.  Telling client.\n");
@@ -911,9 +912,16 @@ int processircmessage(SSL *server_ssl, int *clientsockfd, char *str, int source,
 
           doreplay(sourcefd, replayseconds, arr_clients, arr_authed, arr_ssl, settings);
           return 1;
+        // Unrecognised BLABOUNCER command received, send some help instructions
+        } else {
+          printf("Client BLABOUNCER unrecognised command found and it is: %s with length %zd!  Sending a help message.\n", tokens[1], strlen(tokens[1]));
+          char outgoingmsg[MAXDATASIZE];
+          snprintf(outgoingmsg, MAXDATASIZE, "Unrecognised BLABOUNCER command received.  Valid commands are:");
+          sendtoclient(sourcefd, outgoingmsg, arr_clients, arr_authed, arr_ssl, settings);
+          snprintf(outgoingmsg, MAXDATASIZE, "\"BLABOUNCER REPLAY [seconds]\" (Where [seconds] is the number of seconds of replay log to replay.)");
+          sendtoclient(sourcefd, outgoingmsg, arr_clients, arr_authed, arr_ssl, settings);
+          return 1;
         }
-
-        // If here then although BLABOUNCER command received, it wasn't recognised, so don't return
       }
 
       break;