diff options
Diffstat (limited to 'src/servers.c')
| -rw-r--r-- | src/servers.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/servers.c b/src/servers.c index 576abf8de..b6f16eaa7 100644 --- a/src/servers.c +++ b/src/servers.c @@ -641,4 +641,78 @@ const char *ts6_uid_retrieve() return ts6_new_uid; } +/*******************************************************************/ + +/* + * TS6 generator code, provided by DukePyrolator + */ + +static int ts6_sid_initted = 0; +static char ts6_new_sid[4]; + +static void ts6_sid_increment(unsigned pos) +{ + /* + * An SID must be exactly 3 characters long, starts with a digit, + * and the other two characters are A-Z or digits + * The rules for generating an SID go like this... + * --> ABCDEFGHIJKLMNOPQRSTUVWXYZ --> 0123456789 --> WRAP + */ + if (!pos) + { + /* At pos 0, if we hit '9', we've run out of available SIDs, + * reset the SID to the smallest possible value and try again. */ + if (ts6_new_sid[pos] == '9') + { + ts6_new_sid[0] = '0'; + ts6_new_sid[1] = 'A'; + ts6_new_sid[2] = 'A'; + } + else + // But if we haven't, just keep incrementing merrily. + ++ts6_new_sid[0]; + } + else + { + if (ts6_new_sid[pos] == 'Z') + ts6_new_sid[pos] = '0'; + else if (ts6_new_sid[pos] == '9') + { + ts6_new_sid[pos] = 'A'; + ts6_sid_increment(pos - 1); + } + else + ++ts6_new_sid[pos]; + } +} + +const char *ts6_sid_retrieve() +{ + if (!ircd->ts6) + { + if (debug) + alog("TS6 not supported on this ircd"); + return ""; + } + + if (!ts6_sid_initted) + { + // Initialize ts6_new_sid with the services server SID + snprintf(ts6_new_sid, 4, "%s", TS6SID); + ts6_sid_initted = 1; + } + while (1) + { + // Check if the new SID is used by a known server + if (!findserver_uid(servlist, ts6_new_sid)) + // return the new SID + return ts6_new_sid; + + // Add one to the last SID + ts6_sid_increment(2); + } + /* not reached */ + return ""; +} + /* EOF */ |