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Welcome message for new users, channel tracking docs. (0.41.2)

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- Added welcome message when users join a channel: handle_join() now sends "Welcome, <nick>!" to the channel for non-bot users. The bot's own joins are silently ignored to avoid echo loops.
- Added src_nick parameter to handle_join() to identify the joining user; the call site in irc_handle() was updated to pass src_nick.
- Added doc comments to chans[] (global channel tracking array) and nchans (count of tracked channels) in irc.h.
- Bumped version to 0.41.2 in CMakeLists.txt.
This commit is contained in:
Johannes Findeisen 2026-07-25 03:16:17 +02:00
commit 84fd78f0a0
3 changed files with 35 additions and 10 deletions
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6
CHANGELOG.md
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@ -1,3 +1,9 @@
2026.07.25 - Welcome message for new users, channel tracking docs. (0.41.2)
- Added a welcome message when users join a channel: `handle_join()` now sends `"Welcome, <nick>!"` to the channel for non-bot users. The bot's own joins are silently ignored to avoid echo loops.
- Added `src_nick` parameter to `handle_join()` to identify the joining user; the call site in `irc_handle()` was updated to pass `src_nick`.
- Added doc comments to `chans[]` (global channel tracking array) and `nchans` (count of tracked channels) in `irc.h`.
2026.07.25 - Decode Unicode escapes in !yt responses. (0.41.1)
- Fixed `!yt` displaying raw JSON Unicode escape sequences (e.g. `\u0027` instead of `'`) in video titles and channel names. YouTube's oEmbed API returns non-ASCII characters as `\uXXXX` escapes, which were previously passed through as-is.

2
CMakeLists.txt
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@ -1,6 +1,6 @@
cmake_minimum_required(VERSION 3.13)
project(zynk VERSION 0.41.1 LANGUAGES C)
project(zynk VERSION 0.41.2 LANGUAGES C)
# Prefer C99; the code is compatible with C99/C11
set(CMAKE_C_STANDARD 99)

37
irc.h
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@ -25,7 +25,21 @@ int valid_irc_word(const char *s) {
/* ---- channel op tracking ---- */
/*
* chans - Array of tracked channel entries.
*
* Holds up to MAX_CHANS channel records, each containing the channel name
* and its list of operator nicks. Populated via chan_get_or_add() when JOIN
* messages or NAMREPLY (353) responses are received.
*/
ChanEntry chans[MAX_CHANS];
/*
* nchans - Number of currently tracked channels.
*
* Tracks how many entries in the chans[] array are in use. Incremented by
* chan_get_or_add() when a new channel is registered.
*/
int nchans;
/*
@ -493,25 +507,30 @@ static void handle_mode(Session *s, const char *params) {
}
/*
* handle_join - Process JOIN messages to register new channels.
* handle_join - Process JOIN messages to register channels and welcome users.
*
* When any user (including the bot) joins a channel, registers the channel
* in the tracking array via chan_get_or_add(). This ensures the channel
* exists in the ops tracking structure even before NAMREPLY arrives.
* When any user joins a channel, registers the channel in the tracking array
* via chan_get_or_add(). If the joining user is not the bot itself, sends a
* simple welcome message to the channel.
*
* Parameters:
* s - The IRC session.
* params - The raw IRC params (:#channel).
* s - The IRC session.
* params - The raw IRC params (:#channel).
* src_nick - The nick of the user who joined.
*
* Returns: void.
*/
static void handle_join(Session *s, const char *params) {
(void)s;
static void handle_join(Session *s, const char *params, const char *src_nick) {
const char *p = params;
if (*p == ':') p++;
char _chan[64];
if (sscanf(p, "%63s", _chan) == 1)
chan_get_or_add(_chan);
if (src_nick && strcasecmp(src_nick, s->nick) != 0) {
char welcome[256];
snprintf(welcome, sizeof welcome, "Welcome, %s! User zynk is an AI driven bot using OpenCode. You can ask the bot whatever you want... have fun! ;)", src_nick);
irc_msg(s, _chan, welcome);
}
}
/*
@ -730,7 +749,7 @@ static void irc_handle(Session *s, const char *raw) {
if (strcmp(cmd_buf, "PRIVMSG") == 0) { handle_privmsg(s, params, src_nick); return; }
if (strcmp(cmd_buf, "353") == 0) { handle_namreply(s, params); return; }
if (strcmp(cmd_buf, "MODE") == 0) { handle_mode(s, params); return; }
if (strcmp(cmd_buf, "JOIN") == 0 && prefix) { handle_join(s, params); return; }
if (strcmp(cmd_buf, "JOIN") == 0 && prefix) { handle_join(s, params, src_nick); return; }
if (strcmp(cmd_buf, "PART") == 0 && prefix) { handle_part(params, src_nick); return; }
if (strcmp(cmd_buf, "KICK") == 0 && prefix) { handle_kick(params); return; }
if (strcmp(cmd_buf, "QUIT") == 0 && prefix) { handle_quit_net(src_nick); return; }