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GPLv3 for all my stuff (everything but ocs and cdb.ml). GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
------------------------------------------------------------------------ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
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ocs was downloaded from <http://will.iki.fi/software/ocs/> and came with Preamble
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

2
Makefile
View File

@ -1,5 +1,5 @@
CFLAGS = -Wall -Werror CFLAGS = -Wall -Werror
TARGETS = dispatch irc-filter irc-esc TARGETS = bot
TARGETS += infobot TARGETS += infobot
all: $(TARGETS) all: $(TARGETS)

127
README
View File

@ -1,72 +1,101 @@
firebot bot
======= ===
This is a suite of simple programs which allow you to write an IRC bot.
It is based on the Unix principle that one program should do one thing,
and makes extensive use of pipes, child processes, and passing of file
descriptors.
Unless you are a seasoned Unix programmer or are willing to become one,
this is not the bot you're looking for.
This is a simple C program to assist writing an IRC bot in whatever
language(s) you choose. It is based on the Unix principle that one
program should do one thing.
Getting Started Quickly Getting Started Quickly
======================= =======================
The `newmont` directory contains a very simple example, which you can The example handler script, called `newmont`, will get you started right
extend while it's running. It will connect to an IRC network, join away. It will set its nickname to `newmont`, join the channel
the channel `#dumont`, and respond to any channel massage containing `#newmont`, and respond to any channel message containing the substring
the substring "strawberry". "strawberry".
You should probably edit newmont/nickname and newmont/server before
trying this out. Set it to something hopefully unique on the network
you intend to join.
Start it like so: Start it like so:
./firebot newmont tcpclient YOUR.IRC.SERVER 6667 ./bot contrib/newmont
What's Going On
===============
What Everything Does There are three pieces involved.
====================
The core fuctionality exists as two C programs and a couple scripts:
firebot tcpclient
---------
`tcpclient' is a program that connects to a TCP port, sets file
descriptors 6 and 7 to be the input and output channels to that
connection, and hands off control to whatever program you specify (in
the example above, the `./bot` program with argument `./newmont`).
There also exist a `udpclient`, `sslclient`, and probably others. The
advantage to this method is that your network client doesn't have to
care about the transport mechanism: TCP, UDP, TCP6, SSL, or whatever
else.
bot
---
`bot` reads one line at a time from fd6 (or 0 as a fallback), parses it
up, forks, sets some environment variables, and runs the "handler"
program provided as the first argument. Whatever that program prints to
stdout is sent back to the server, verbatim. As a convenience, it
automatically responds to PING messages from the server. It can also
rate-limit messages to the server, so your bot doesn't flood itself off
IRC. Lastly, it can monitor a directory and send the contents of any
new file to the server, deleting the file after. This allows you to
write to IRC from a cron job, git post-update hook, or whatever else you
dream up.
`bot` sets the following environment variables:
prefix you probably don't care about this
command IRC command or numeric
sender nickname to send "private" replies to this message
forum nickname to send "public" replies to this message
text command text, like what's sent to the channel
Any additional parameters of the message, like with the MODE command,
are passed in as arguments to the handler.
handler
------- -------
Reads in nick and realname, sets up a fifo, connects to the server The handler is launched once for each incoming message. It should
(or runs `$botdir/connect`), and hands off to `connect-handler`. decide what to do based on the environment variables and argv, possibly
writing something to stdout, and then it should exit.
Handlers are launched in parallel to each other. IRC is an asynchronous
protocol, and while messages do tend to arrive in a particular order,
don't count on it, especially with this framework.
`newmont` is a very simple handler script to reply to any PRIVMSG with
the substring "strawberry", in the (public) forum it was sent.
connect-handler Caution
--------------- =======
Sends the `NICK` and `USER` commands to the server (or runs Your handler is getting input provided by a potentially malicious
`$botdir/login`), then hands off to `dispatch irc-filter adversary. If you're not careful, you could create a remote exploit: a
$botdir/handler`. path through your handler script that allows anyone on IRC to do
whatever they want on your local computer.
You can write handlers in bourne shell: it's really easy. It's equally
as easy to accidentally allow remote control. There's nothing I can do
in my code I provide to prevent you from creating a remote exploit, all
I can do is warn you.
dispatch If you're not confident in your mastery of bourne shell quoting rules,
-------- you should build off of the provided lua example, which will make it
much more difficult to accidentally create an exploit. Or create a new
Reads lines from stdin (or fd 6). Each line causes a fork and exec of a handler in Python, Ruby, etc.
specified program; the line is sent as the last argument. Any output
from children is passed through to stdout (or fd 7), optionally rate
limited. A fifo can optionally be specified on the command line;
anything written to it is treated identically to child output.
irc-filter
----------
Parses its last argument as a line from IRC. Determines prefix,
command, sender, forum (channel or user), and text; then invokes a
specified program with these as arguments. Also responds to server
pings as a convenience.
@ -75,5 +104,3 @@ Author
Neale Pickett <neale@woozle.org> Neale Pickett <neale@woozle.org>

1
TODO Normal file
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@ -0,0 +1 @@

479
bot.c Normal file
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@ -0,0 +1,479 @@
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
#include <ctype.h>
#include <time.h>
#include <errno.h>
#include <sysexits.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <dirent.h>
#include <fcntl.h>
#include "dump.h"
#define MAX_ARGS 50
#define MAX_SUBPROCS 50
#define max(a,b) ((a)>(b)?(a):(b))
bool running = true;
char *handler = NULL;
char *msgdir = NULL;
struct timeval output_interval = {0};
void
maybe_setenv(char *key, char *val)
{
if (val) {
setenv(key, val, 1);
}
}
void
irc_filter(const char *str)
{
char buf[4096];
char *line = buf;
char *parts[20] = {0};
int nparts;
char snick[20];
char *cmd;
char *text = NULL;
char *prefix = NULL;
char *sender = NULL;
char *forum = NULL;
int i;
strncpy(buf, str, sizeof buf);
/* Tokenize IRC line */
nparts = 0;
if (':' == *line) {
prefix = line + 1;
} else {
parts[nparts++] = line;
}
while (*line) {
if (' ' == *line) {
*line++ = '\0';
if (':' == *line) {
text = line+1;
break;
} else {
parts[nparts++] = line;
}
} else {
line += 1;
}
}
/* Strip trailing carriage return */
while (*line) line += 1;
if ('\r' == *(line-1)) *(line-1) = '\0';
/* Set command, converting to upper case */
cmd = parts[0];
for (i = 0; cmd[i]; i += 1) {
cmd[i] = toupper(cmd[i]);
}
/* Extract prefix nickname */
for (i = 0; prefix && (prefix[i] != '!'); i += 1) {
if (i == sizeof(snick) - 1) {
i = 0;
break;
}
snick[i] = prefix[i];
}
snick[i] = '\0';
if (i) {
sender = snick;
}
/* Determine forum */
if ((0 == strcmp(cmd, "PRIVMSG")) ||
(0 == strcmp(cmd, "NOTICE"))) {
/* :neale!user@127.0.0.1 PRIVMSG #hydra :foo */
switch (parts[1][0]) {
case '#':
case '&':
case '+':
case '!':
forum = parts[1];
break;
default:
forum = snick;
break;
}
} else if ((0 == strcmp(cmd, "PART")) ||
(0 == strcmp(cmd, "MODE")) ||
(0 == strcmp(cmd, "TOPIC")) ||
(0 == strcmp(cmd, "KICK"))) {
forum = parts[1];
} else if (0 == strcmp(cmd, "JOIN")) {
if (0 == nparts) {
forum = text;
text = NULL;
} else {
forum = parts[1];
}
} else if (0 == strcmp(cmd, "INVITE")) {
forum = text?text:parts[2];
text = NULL;
} else if (0 == strcmp(cmd, "NICK")) {
sender = parts[1];
forum = sender;
} else if (0 == strcmp(cmd, "PING")) {
printf("PONG :%s\r\n", text);
fflush(stdout);
}
{
int _argc;
char *_argv[MAX_ARGS + 1];
maybe_setenv("handler", handler);
maybe_setenv("prefix", prefix);
maybe_setenv("command", cmd);
maybe_setenv("sender", sender);
maybe_setenv("forum", forum);
maybe_setenv("text", text);
_argc = 0;
_argv[_argc++] = handler;
for (i = 1; (i < nparts) && (_argc < MAX_ARGS); i += 1) {
_argv[_argc++] = parts[i];
}
_argv[_argc] = NULL;
execvp(handler, _argv);
perror(handler);
}
}
void
unblock(int fd)
{
int flags = fcntl(fd, F_GETFL, 0);
fcntl(fd, F_SETFL, flags | O_NONBLOCK);
}
FILE *subprocs[MAX_SUBPROCS] = { 0 };
void
sigchld(int signum)
{
while (0 < waitpid(-1, NULL, WNOHANG));
}
void
dispatch(char *text)
{
int subout[2];
int i;
for (i = 0; i < MAX_SUBPROCS; i += 1) {
if (NULL == subprocs[i]) {
break;
}
}
if (MAX_SUBPROCS == i) {
fprintf(stderr, "warning: dropping message (too many children)\n");
return;
}
if (-1 == pipe(subout)) {
perror("pipe");
return;
}
subprocs[i] = fdopen(subout[0], "r");
if (! subprocs[i]) {
close(subout[0]);
close(subout[1]);
perror("fdopen");
return;
}
if (0 == fork()) {
/*
* Child
*/
int null;
if ((-1 == (null = open("/dev/null", O_RDONLY))) ||
(-1 == dup2(null, 0)) ||
(-1 == dup2(subout[1], 1))) {
perror("fd setup");
exit(EX_OSERR);
}
/*
* We'll be a good citizen and only close file descriptors we opened.
*/
close(null);
close(subout[1]);
for (i = 0; i < MAX_SUBPROCS; i += 1) {
if (subprocs[i]) {
fclose(subprocs[i]);
}
}
irc_filter(text);
exit(0);
}
unblock(subout[0]);
close(subout[1]);
}
void
delay_output()
{
struct timeval now;
struct timeval diff;
static struct timeval output_last = { 0 };
gettimeofday(&now, NULL);
timersub(&now, &output_last, &diff);
if (timercmp(&diff, &output_interval, <)) {
struct timeval delay;
struct timespec ts;
int ret;
timersub(&output_interval, &diff, &delay);
ts.tv_sec = (time_t) delay.tv_sec;
ts.tv_nsec = (long) (delay.tv_usec * 1000);
do {
ret = nanosleep(&ts, &ts);
} while ((-1 == ret) && (EINTR == errno));
gettimeofday(&output_last, NULL);
} else {
output_last = now;
}
}
/** Writes all of buf to stdout, possibly blocking. */
void
output(char *buf)
{
if (timerisset(&output_interval)) {
delay_output();
}
puts(buf);
}
void
handle_file(FILE *f, void (*func) (char *))
{
char line[2048];
size_t linelen;
// Read a line. If we didn't have enough space, drop it.
while (fgets(line, sizeof line, f)) {
linelen = strlen(line);
if (line[linelen-1] != '\n') {
fprintf(stderr, "warning: dropping %u bytes (no trailing newline)\n", (unsigned int)linelen);
} else {
line[linelen-1] = '\0';
func(line);
}
}
}
void
handle_input()
{
handle_file(stdin, dispatch);
if (feof(stdin)) {
running = false;
}
}
void
handle_subproc(FILE *s)
{
handle_file(s, output);
}
void
loop()
{
int i;
int ret;
int nfds = 0;
fd_set rfds;
static time_t last_pulse = 0;
time_t now;
// Look for messages in msgdir
if (msgdir) {
DIR *d = opendir(msgdir);
while (d) {
struct dirent *ent = readdir(d);
if (! ent) {
break;
}
if (ent->d_type == DT_REG) {
char fn[PATH_MAX];
FILE *f;
snprintf(fn, sizeof fn, "%s/%s", msgdir, ent->d_name);
f = fopen(fn, "r");
if (f) {
// This one is blocking
handle_subproc(f);
fclose(f);
remove(fn);
}
}
}
if (d) {
closedir(d);
}
}
// Check subprocs for input
FD_ZERO(&rfds);
FD_SET(0, &rfds);
for (i = 0; i < MAX_SUBPROCS; i += 1) {
if (subprocs[i]) {
int fd = fileno(subprocs[i]);
FD_SET(fd, &rfds);
nfds = max(nfds, fd);
}
}
do {
struct timeval timeout = {1, 0};
ret = select(nfds + 1, &rfds, NULL, NULL, &timeout);
} while ((-1 == ret) && (EINTR == errno));
if (-1 == ret) {
perror("select");
exit(EX_IOERR);
}
if (FD_ISSET(0, &rfds)) {
handle_input();
}
for (i = 0; i < MAX_SUBPROCS; i += 1) {
FILE *f = subprocs[i];
if (f && FD_ISSET(fileno(f), &rfds)) {
handle_subproc(f);
if (feof(f)) {
fclose(f);
subprocs[i] = NULL;
}
}
}
// Heartbeat
now = time(NULL);
if (now - last_pulse > 5) {
last_pulse = now;
dispatch("PULSE");
}
}
void
usage(char *self)
{
fprintf(stderr, "Usage: %s [OPTIONS] HANDLER\n", self);
fprintf(stderr, "\n");
fprintf(stderr, "-h Display help.\n");
fprintf(stderr, "-d DIR Also dispatch messages from DIR, one per file.\n");
fprintf(stderr, "-i INTERVAL Wait at least INTERVAL microseconds between\n");
fprintf(stderr, " sending each line.\n");
}
int
main(int argc, char *argv[])
{
/*
* Parse command line
*/
while (!handler) {
switch (getopt(argc, argv, "hd:i:")) {
case -1:
if (optind >= argc) {
fprintf(stderr, "error: must specify event handler.\n");
usage(argv[0]);
return EX_USAGE;
}
handler = argv[optind];
break;
case 'd':
msgdir = optarg;
break;
case 'i':
{
char *end;
long long int interval;
interval = strtoll(optarg, &end, 10);
if (*end) {
fprintf(stderr, "error: not an integer number: %s\n", optarg);
return EX_USAGE;
}
output_interval.tv_sec = interval / 1000000;
output_interval.tv_usec = interval % 1000000;
}
break;
case 'h':
usage(argv[0]);
return 0;
default:
fprintf(stderr, "error: unknown option.\n");
usage(argv[0]);
return EX_USAGE;
}
}
/*
* tcpclient uses fds 6 and 7. If these aren't open, we keep the
* original fds 0 and 1.
*/
if (-1 != dup2(6, 0)) {
close(6);
}
if (-1 != dup2(7, 1)) {
close(7);
}
unblock(0);
setvbuf(stdout, NULL, _IOLBF, 0);
signal(SIGCHLD, sigchld);
// Let handler know we're starting up
dispatch("_INIT_");
while (running) {
loop();
}
// Let handler know we're shutting down
dispatch("_END_");
return 0;
}

23
connect-handler
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@ -1,23 +0,0 @@
#! /bin/sh -e
# UCSPI wants communication on fd7
if [ -n "$PROTO" ]; then
fd=7
else
fd=1
fi
if [ -x $botdir/login ]; then
$botdir/login 1>& $fd
else
echo "NICK $nickname" 1>& $fd
echo "USER $nickname $nickname $nickname :$realname" 1>& $fd
fi
if [ -f $botdir/opts ]; then
read -r opts < $botdir/opts
else
opts="-i 500000"
fi
exec $ircdir/dispatch $fifo $opts $ircdir/irc-filter $botdir/handler

107
contrib/bot.lua Executable file
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@ -0,0 +1,107 @@
--
-- Bot object
--
-- require() this file, and you get a `bot` object with everything
-- you need to run a bot. You can either switch on bot.command,
-- or invoke bot:run(), which will run self:handle_$COMMAND.
--
bot = {}
bot.debug = false
bot.nick = "newmont"
bot.user = "WoozleBot"
bot.desc = "A woozle.org bot"
bot.prefix = os.getenv("prefix")
bot.forum = os.getenv("forum")
bot.sender = os.getenv("sender")
bot.command = os.getenv("command")
bot.text = os.getenv("text")
bot.args = arg
--
-- Log to stderr
--
function bot:log(text)
io.stderr:write(text .. "\n")
end
--
-- Log what we are working with
--
function bot:debug_input(text)
self:log(("< %-8s %8s/%-8s :%s"):format(
self.command,
self.sender or "-",
self.forum or "-",
self.text or ""))
end
--
-- Send a raw IRC command
--
function bot:raw(text)
if self.debug then
self:log(" > " .. text)
end
print(text)
end
--
-- Send a message to the forum, falling back to sender if we're
-- spamming the channel.
--
function bot:msg(text)
self.msgs_sent = self.msgs_sent + 1
if ((self.msgs_sent == 5) and (self.forum ~= self.sender)) then
self:raw("PRIVMSG " .. forum .. " :Sending the rest in private")
self.msg_recip = self.sender
end
self:raw("PRIVMSG " .. self.msg_recip .. " :" .. text)
end
bot.msgs_sent = 0
bot.msg_recip = bot.forum
--
-- Emote, like "* botname explodes"
--
function bot:emote(text)
self:msg("\001ACTION " .. text .. "\001")
end
--
-- Use introspection to dispatch a command
--
function bot:run()
local func = self["handle_" .. self.command:lower()]
if (self.debug) then
self:debug_input()
end
if (func) then
func(self)
else
self:handle_default()
end
end
-- Log in to IRC
function bot:handle__init_()
self:raw("NICK " .. self.nick)
self:raw(("USER %s %s %s :%s"):format(self.user, self.user, self.user, self.desc))
end
-- Deal with nickname collision
function bot:handle_433()
self.raw("NICK " .. self.nick .. (os.time() % 500))
end
-- Override this to handle messages
function bot:handle_privmsg()
self:log(("%s/%s: %s"):format(self.sender, self.forum, self.text))
end
-- Override this to handle any undefined command
function bot:handle_default()
end

0
modules/infobot → contrib/infobot
View File

42
contrib/newmont Executable file
View File

@ -0,0 +1,42 @@
#! /usr/bin/lua
--
-- A very simple bot which will join IRC, join #newmont, and
-- respond to any messages with "strawberry" in them. It also
-- has some naïve nickname collision avoidance.
--
-- This is a good place to start if you're not going to write
-- your handler in lua. If you *do* want to use lua, you should
-- take a look at bot.lua instead.
--
prefix = os.getenv("prefix")
forum = os.getenv("forum")
sender = os.getenv("sender")
command = os.getenv("command")
text = os.getenv("text")
io.stderr:write(">>> [" .. command .. "] " ..
(sender or "-") .. "/" ..
(forum or "-") .. " " ..
(text or "") .. "\n")
-- Our behavior depends on what the command is
if (command == "_INIT_") then
-- bot sends this when it first starts up, so we can log in
print("NICK nemont")
print("USER newmont newmont newmont :Sample bot")
elseif (command == "433") then
-- Couldn't get the nickname we asked for
print("NICK bot_" .. (os.time() % 500))
elseif (command == "001") then
-- IRC server sends this after successful login
print("JOIN #newmont")
elseif (command == "PRIVMSG") then
-- Somebody said something!
if (text:find("strawberry")) then
print("PRIVMSG " .. forum .. " :Strawberries are delicious.")
elseif (text:find("die")) then
print("QUIT :goodbye")
end
end

0
modules/notes → contrib/notes
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0
modules/utilbot → contrib/utilbot
View File

0
modules/whuffie → contrib/whuffie
View File

349
dispatch.c
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@ -1,349 +0,0 @@
#include <stdio.h>
#include <unistd.h>
#include <stdarg.h>
#include <sysexits.h>
#include <stdlib.h>
#include <signal.h>
#include <time.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/select.h>
#include <sys/time.h>
#include "dump.h"
#define MAX_ARGS 50
#define MAX_SUBPROCS 50
#define TARGET_MAX 20
#define max(a,b) ((a)>(b)?(a):(b))
struct subproc {
int fd; /* File descriptor */
char buf[4000]; /* Read buffer */
size_t buflen; /* Buffer length */
};
struct subproc subprocs[MAX_SUBPROCS] = {{0}};
/* Things set by argv parser */
char *handler = NULL;
char **handler_args;
struct timeval output_interval = {0};
struct timeval output_last = {0};
int fifoin = -1;
int fifoout = -1;
void
dispatch(const char *buf,
size_t buflen)
{
int subout[2];
struct subproc *s = NULL;
int i;
char text[512];
if (buflen > sizeof(text)) {
fprintf(stderr, "Ignoring message: too long (%u bytes)\n", (unsigned int)buflen);
return;
}
memcpy(text, buf, buflen-1); /* omit newline */
text[buflen-1] = '\0';
for (i = 0; i < MAX_SUBPROCS; i += 1) {
if (0 == subprocs[i].fd) {
s = &subprocs[i];
break;
}
}
if (! s) {
fprintf(stderr, "Ignoring message: too many subprocesses\n");
return;
}
if (-1 == pipe(subout)) {
perror("pipe");
return;
}
if (0 == fork()) {
/* Child */
char *argv[MAX_ARGS + 5];
int null;
int i;
if ((-1 == (null = open("/dev/null", O_RDONLY))) ||
(-1 == dup2(null, 0)) ||
(-1 == dup2(subout[1], 1))) {
perror("fd setup");
exit(EX_OSERR);
}
/* We'll be good citizens about this and only close file descriptors
we opened. */
close(fifoout);
close(null);
close(subout[0]);
close(subout[1]);
for (i = 0; i < MAX_SUBPROCS; i += 1) {
if (subprocs[i].fd) {
close(subprocs[i].fd);
}
}
i = 0;
argv[i++] = handler;
for (; handler_args[i-1]; i += 1) {
argv[i] = handler_args[i-1];
}
argv[i++] = text;
argv[i] = NULL;
execvp(handler, argv);
perror("exec");
exit(0);
}
s->fd = subout[0];
close(subout[1]);
}
void
delay_output()
{
struct timeval now, diff;
gettimeofday(&now, NULL);
timersub(&now, &output_last, &diff);
if (timercmp(&diff, &output_interval, <)) {
struct timeval delay;
struct timespec ts;
int ret;
timersub(&output_interval, &diff, &delay);
ts.tv_sec = (time_t)delay.tv_sec;
ts.tv_nsec = (long)(delay.tv_usec * 1000);
do {
ret = nanosleep(&ts, &ts);
} while ((-1 == ret) && (EINTR == errno));
gettimeofday(&output_last, NULL);
} else {
output_last = now;
}
}
/** Writes all of buf to stdout, possibly blocking. */
void
output(const char *buf,
size_t count)
{
if (timerisset(&output_interval)) {
delay_output();
}
while (count) {
ssize_t len;
do {
len = write(1, buf, count);
} while ((-1 == len) && (EINTR == errno));
if (-1 == len) {
perror("stdout");
exit(EX_IOERR);
}
count -= len;
buf += len;
}
}
void
call_with_lines(char *buf,
size_t *len,
void (*func)(const char *, size_t))
{
char *b = buf;
char *p;
size_t l = *len;
while ((p = memchr(b, '\n', l))) {
size_t n = p - b + 1;
func(b, n);
l -= n;
b += n;
}
memmove(buf, b, l);
*len = l;
}
char inbuf[8000];
size_t inbuflen = 0;
void
handle_input()
{
ssize_t len;
do {
len = read(0, inbuf + inbuflen, sizeof(inbuf) - inbuflen);
} while ((-1 == len) && (EINTR == errno));
if (0 == len) {
exit(0);
}
inbuflen += len;
call_with_lines(inbuf, &inbuflen, dispatch);
}
void
handle_subproc(struct subproc *s)
{
ssize_t len;
do {
len = read(s->fd, s->buf + s->buflen, sizeof(s->buf) - s->buflen);
} while ((-1 == len) && (EINTR == errno));
if (-1 == len) {
perror("subprocess read error");
} else {
s->buflen += len;
call_with_lines(s->buf, &s->buflen, output);
}
if (sizeof(s->buf) == s->buflen) {
fprintf(stderr, "subprocess buffer full, killing and discarding buffer.\n");
len = 0;
}
/* Recycle this subproc unless something was read */
if (0 >= len) {
if (s->buflen) {
fprintf(stderr, "warning: discarding %u characters from subprocess buffer\n",
(unsigned int)s->buflen);
}
close(s->fd);
s->fd = 0;
s->buflen = 0;
}
}
void
loop()
{
int i, ret;
int nfds = 0;
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(0, &rfds);
for (i = 0; i < MAX_SUBPROCS; i += 1) {
if (subprocs[i].fd) {
FD_SET(subprocs[i].fd, &rfds);
nfds = max(nfds, subprocs[i].fd);
}
}
do {
ret = select(nfds+1, &rfds, NULL, NULL, NULL);
} while ((-1 == ret) && (EINTR == errno));
if (-1 == ret) {
perror("select");
exit(EX_IOERR);
}
if (FD_ISSET(0, &rfds)) {
handle_input();
}
for (i = 0; i < MAX_SUBPROCS; i += 1) {
if (subprocs[i].fd && FD_ISSET(subprocs[i].fd, &rfds)) {
handle_subproc(&subprocs[i]);
}
}
}
void
sigchld(int signum)
{
while (0 < waitpid(-1, NULL, WNOHANG));
}
void
usage(char *self)
{
fprintf(stderr, "Usage: %s [OPTIONS] handler [ARGS ...]\n", self);
fprintf(stderr, "\n");
fprintf(stderr, "-f FIFO Also dispatch messages from FIFO.\n");
fprintf(stderr, "-i INTERVAL Wait at least INTERVAL microseconds between\n");
fprintf(stderr, " sending each line.\n");
}
int
main(int argc, char *argv[])
{
/* Parse command line */
while (! handler) {
switch (getopt(argc, argv, "hf:i:")) {
case -1:
if (optind >= argc) {
fprintf(stderr, "error: must specify handler script.\n");
usage(argv[0]);
return EX_USAGE;
}
if (argc - optind - 10 > MAX_ARGS) {
fprintf(stderr, "error: too many arguments to helper.\n");
return EX_USAGE;
}
handler = argv[optind];
handler_args = argv + (optind + 1);
break;
case 'f':
if ((-1 == (fifoin = open(optarg, O_RDONLY | O_NONBLOCK))) ||
(-1 == (fifoout = open(optarg, O_WRONLY)))) {
perror("open fifo");
return EX_IOERR;
}
subprocs[0].fd = fifoin;
break;
case 'i':
{
char *end;
long long int interval;
interval = strtoll(optarg, &end, 10);
if (*end) {
fprintf(stderr, "error: not an integer number: %s\n", optarg);
return EX_USAGE;
}
output_interval.tv_sec = interval / 1000000;
output_interval.tv_usec = interval % 1000000;
}
break;
case 'h':
usage(argv[0]);
return 0;
default:
fprintf(stderr, "error: unknown option.\n");
usage(argv[0]);
return EX_USAGE;
}
}
/* tcpclient uses fds 6 and 7. If these aren't open, we keep the
original fds 0 and 1. */
if (-1 != dup2(6, 0)) close(6);
if (-1 != dup2(7, 1)) close(7);
signal(SIGCHLD, sigchld);
while (1) {
loop();
}
return 0;
}

35
firebot
View File

@ -1,35 +0,0 @@
#! /bin/sh -e
if ! [ -d $1 ]; then
echo "Usage: $0 BOTDIR"
echo
echo "Starts a new bot with personality defined in BOTDIR."
exit 1
fi
botdir=$(cd $1; pwd)
ircdir=$(cd $(dirname $0); pwd)
export botdir ircdir
nickname=$(cat $botdir/nickname)
realname=$(cat $botdir/realname 2>/dev/null || \
echo "I'm a little printf, short and stdout.")
export nickname realname
if [ -p $botdir/fifo ]; then
mkfifo -m 0600 $botdir/fifo
fifo="-f $botdir/fifo"
export fifo
fi
if [ -x $botdir/connect ]; then
$botdir/connect $ircdir/connect-handler
else
server=$(cat $botdir/server)
if [ -z "$server" ]; then
echo "$0: no server specified in $botdir/server"
exit 1
fi
socat TCP:$server EXEC:$ircdir/connect-handler
fi

119
irc-esc.c
View File

@ -1,119 +0,0 @@
#include <stdio.h>
enum {
RESET,
COLOR,
NOCOLOR,
BOLD,
UNDERLINE,
INVERSE
};
int color_map[] = {7, 0, 4, 2, 1, 1, 5, 3, 3, 2, 6, 6, 4, 5, 0, 7};
void
change_state(int what, int foreground, int background)
{
static int bf = 0;
static int ul = 0;
static int rv = 0;
static int fg = -1;
static int bg = -1;
switch (what) {
case RESET:
fg = -1;
bg = -1;
bf = 0;
ul = 0;
rv = 0;
break;
case COLOR:
fg = (foreground<16)?color_map[foreground]:-1;
bg = (background<16)?color_map[background]:-1;
break;
case NOCOLOR:
fg = -1;
bg = -1;
break;
case BOLD:
bf = !bf;
break;
case UNDERLINE:
ul = !ul;
break;
case INVERSE:
rv = !rv;
break;
}
printf("\033[0");
if (bf) printf(";1");
if (ul) printf(";4");
if (rv) printf(";7");
if (0 <= fg) printf(";3%d", fg);
if (0 <= bg) printf(";4%d", bg);
printf("m");
}
int
read_num()
{
int acc = 0;
int fail = 1;
while (1) {
int c = getchar();
if ((c >= '0') && (c <= '9')) {
acc = (acc * 10) + (c - '0');
} else {
ungetc(c, stdin);
break;
}
fail = 0;
}
return fail?-1:acc;
}
int
main(int argc, char *argv[])
{
while (! feof(stdin)) {
int c = getchar();
if (EOF == c) {
break;
} else if (0 == c) {
printf("\\0");
} else if (3 == c) { /* mIRC color */
int fg = read_num();
int bg = -1;
c = getchar();
if (',' == c) {
bg = read_num();
} else {
ungetc(c, stdin);
}
change_state(COLOR, fg, bg);
} else if (2 == c) {
change_state(BOLD, 0, 0);
} else if (22 == c) {
change_state(INVERSE, 0, 0);
} else if (31 == c) {
change_state(UNDERLINE, 0, 0);
} else if (15 == c) {
change_state(RESET, 0, 0);
} else if ('\n' == c) {
change_state(RESET, 0, 0);
putchar(c);
} else if (32 > c) {
printf("^%c", c + 'A' - 1);
} else {
putchar(c);
}
}
change_state(RESET, 0, 0);
return 0;
}

154
irc-filter.c
View File

@ -1,154 +0,0 @@
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <sysexits.h>
#include "dump.h"
#define MAX_ARGS 50
#define MAX_OUTARGS 60
#define MAX_PARTS 20
int
main(int argc, char *argv[])
{
char *parts[20] = {0};
int nparts;
char snick[20];
char *cmd;
char *text = NULL;
char *prefix = NULL;
char *sender = NULL;
char *forum = NULL;
int i;
if (argc < 3) {
fprintf(stderr, "Usage: %s HANDLER [ARGV ...] LINE\n", argv[0]);
fprintf(stderr, "\n");
fprintf(stderr, "Parses LINE (an IRC message) into:\n");
fprintf(stderr, " PREFIX Prefix part of message\n");
fprintf(stderr, " COMMAND IRC command\n");
fprintf(stderr, " SENDER Nickname of message's sender\n");
fprintf(stderr, " FORUM Forum of message\n");
fprintf(stderr, " TEXT Text part of message\n");
fprintf(stderr, " ARGS... Arguments of message\n");
fprintf(stderr, "\n");
fprintf(stderr, "After parsing, exec()s\n");
fprintf(stderr, " HANDLER ARGV... PREFIX COMMAND SENDER FORUM TEXT ARGS...\n");
return EX_USAGE;
} else if (argc > MAX_ARGS) {
fprintf(stderr, "%s: too many arguments\n", argv[0]);
return EX_USAGE;
}
/* Tokenize IRC line */
{
char *line = argv[argc-1];
nparts = 0;
if (':' == *line) {
prefix = line + 1;
} else {
parts[nparts++] = line;
}
while (*line) {
if (' ' == *line) {
*line++ = '\0';
if (':' == *line) {
text = line+1;
break;
} else {
parts[nparts++] = line;
}
} else {
line += 1;
}
}
/* Strip trailing carriage return */
while (*line) line += 1;
if ('\r' == *(line-1)) *(line-1) = '\0';
}
/* Set command, converting to upper case */
cmd = parts[0];
for (i = 0; cmd[i]; i += 1) {
cmd[i] = toupper(cmd[i]);
}
/* Extract prefix nickname */
for (i = 0; prefix && (prefix[i] != '!'); i += 1) {
if (i == sizeof(snick) - 1) {
i = 0;
break;
}
snick[i] = prefix[i];
}
snick[i] = '\0';
if (i) {
sender = snick;
}
/* Determine forum */
if ((0 == strcmp(cmd, "PRIVMSG")) ||
(0 == strcmp(cmd, "NOTICE"))) {
/* :neale!user@127.0.0.1 PRIVMSG #hydra :foo */
switch (parts[1][0]) {
case '#':
case '&':
case '+':
case '!':
forum = parts[1];
break;
default:
forum = snick;
break;
}
} else if ((0 == strcmp(cmd, "PART")) ||
(0 == strcmp(cmd, "MODE")) ||
(0 == strcmp(cmd, "TOPIC")) ||
(0 == strcmp(cmd, "KICK"))) {
forum = parts[1];
} else if (0 == strcmp(cmd, "JOIN")) {
if (0 == nparts) {
forum = text;
text = NULL;
} else {
forum = parts[1];
}
} else if (0 == strcmp(cmd, "INVITE")) {
forum = text?text:parts[2];
text = NULL;
} else if (0 == strcmp(cmd, "NICK")) {
sender = parts[1];
forum = sender;
} else if (0 == strcmp(cmd, "PING")) {
printf("PONG :%s\r\n", text);
fflush(stdout);
}
{
int _argc;
char *_argv[MAX_OUTARGS + 1];
_argc = 0;
for (i = 1; i < argc-1; i += 1) {
_argv[_argc++] = argv[i];
}
_argv[_argc++] = prefix?prefix:"";
_argv[_argc++] = cmd;
_argv[_argc++] = sender?sender:"";
_argv[_argc++] = forum?forum:"";
_argv[_argc++] = text?text:"";
for (i = 1; (i < nparts) && (_argc < MAX_OUTARGS); i += 1) {
_argv[_argc++] = parts[i];
}
_argv[_argc] = NULL;
execvp(_argv[0], _argv);
perror(_argv[0]);
}
return 0;
}

37
newmont/handler
View File

@ -1,37 +0,0 @@
#! /bin/sh
prefix=$1; export prefix; shift
command=$1; export command; shift
sender=$1; export sender; shift
forum=$1; export forum; shift
text=$1; export text; shift
# $* is now args
# Debug output
echo '>>>' ${prefix:+:}$prefix $command "$@" ${text:+:}"$text" 1>&2
newmont () {
case $text in
*strawberry*)
echo "mmmmm"
;;
esac
}
case $command in
001)
printf "\007JOIN %s\n" "#dumont"
;;
PRIVMSG)
[ $forum = "#dumont" ] && newmont
;;
esac | while read -r line; do
case "$line" in
*)
printf "%s\r\n" "${line#}"
;;
*)
printf "PRIVMSG %s :%s\r\n" "$forum" "$line"
;;
esac
done

1
newmont/nickname
View File

@ -1 +0,0 @@
newmont

1
newmont/server
View File

@ -1 +0,0 @@
moo.slashnet.org:6667