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WIP: add a stub IRC daemon named `kike'

Browse Source 
As it is going to share a great lot of functionality with ZyklonB, I have
decided to extract the common parts into `common.c' and make the two subprojects
include this file.

The Single Compile Unit concept has proven valuable (sub-second compile times,
dead code warnings, almost no need for function declarations, whole-program
optimizations), and the sources aren't that long so far anyway.

I am probably going to add CMake support later but so far it's not a priority.
This project is meant to be portable and freely relocatable (ie. no hardcoded
paths if I can avoid it).
This commit is contained in:
Přemysl Eric Janouch 2014-07-09 01:54:50 +02:00
parent 165a19da21
commit 705c0e943e
5 changed files with 2654 additions and 1609 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
Makefile
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@ -1,17 +1,20 @@
SHELL = /bin/sh SHELL = /bin/sh
CC = clang CC = clang
CFLAGS = -ggdb -Wall -Wextra -std=c99 CFLAGS = -ggdb -Wall -Wextra -std=c99
LDFLAGS = `pkg-config --libs libssl` # -lpthread is only there for debugging (gdb & errno)
LDFLAGS = `pkg-config --libs libssl` -lpthread
.PHONY: all clean .PHONY: all clean
targets = zyklonb targets = zyklonb kike
all: $(targets) all: $(targets)
clean: clean:
rm -f $(targets) rm -f $(targets)
zyklonb: src/zyklonb.c src/siphash.c zyklonb: src/zyklonb.c src/common.c src/siphash.c
$(CC) $^ -o $@ $(CFLAGS) $(LDFLAGS) $(CC) src/zyklonb.c src/siphash.c -o $@ $(CFLAGS) $(LDFLAGS)
kike: src/kike.c src/common.c src/siphash.c
$(CC) src/kike.c src/siphash.c -o $@ $(CFLAGS) $(LDFLAGS)

11
README
View File

@ -10,6 +10,17 @@ While originally intended to be a simple C99 rewrite of the original bot, which
was written in the GNU dialect of AWK, it fairly quickly became a playground was written in the GNU dialect of AWK, it fairly quickly became a playground
where I added everything that seemed nice. where I added everything that seemed nice.
kike
----
Also included is a simple IRC daemon that mostly follows the RFC's but is
limited to single-server networks, due to the protocol being incredibly ugly
and tricky to implement correctly. Even so, it took me a ridiculous amount of
time to write. (But it was a valuable exercise and I can reuse the code.)
Disclaimer
----------
I am not an antisemitist, I'm just being an offensive asshole with the naming.
License License
------- -------
`ZyklonB' is written by Přemysl Janouch <p.janouch@gmail.com>. `ZyklonB' is written by Přemysl Janouch <p.janouch@gmail.com>.

1772
src/common.c Normal file
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796
src/kike.c Normal file
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@ -0,0 +1,796 @@
/*
* kike.c: the experimental IRC daemon
*
* Copyright (c) 2014, Přemysl Janouch <p.janouch@gmail.com>
* All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#define PROGRAM_NAME "kike"
#define PROGRAM_VERSION "alpha"
#include "common.c"
// --- Configuration (application-specific) ------------------------------------
static struct config_item g_config_table[] =
{
{ "server_name", NULL, "Server name" },
{ "bind_host", NULL, "Address of the IRC server" },
{ "bind_port", "6667", "Port of the IRC server" },
{ "ssl_cert", NULL, "Server SSL certificate (PEM)" },
{ "ssl_key", NULL, "Server SSL private key (PEM)" },
{ "max_connections", NULL, "Maximum client connections" },
{ NULL, NULL, NULL }
};
// --- Signals -----------------------------------------------------------------
static int g_signal_pipe[2]; ///< A pipe used to signal... signals
/// Program termination has been requested by a signal
static volatile sig_atomic_t g_termination_requested;
static void
sigterm_handler (int signum)
{
(void) signum;
g_termination_requested = true;
int original_errno = errno;
if (write (g_signal_pipe[1], "t", 1) == -1)
soft_assert (errno == EAGAIN);
errno = original_errno;
}
static void
setup_signal_handlers (void)
{
if (pipe (g_signal_pipe) == -1)
{
print_fatal ("pipe: %s", strerror (errno));
exit (EXIT_FAILURE);
}
set_cloexec (g_signal_pipe[0]);
set_cloexec (g_signal_pipe[1]);
// So that the pipe cannot overflow; it would make write() block within
// the signal handler, which is something we really don't want to happen.
// The same holds true for read().
set_blocking (g_signal_pipe[0], false);
set_blocking (g_signal_pipe[1], false);
signal (SIGPIPE, SIG_IGN);
struct sigaction sa;
sa.sa_flags = SA_RESTART;
sigemptyset (&sa.sa_mask);
sa.sa_handler = sigterm_handler;
if (sigaction (SIGINT, &sa, NULL) == -1
|| sigaction (SIGTERM, &sa, NULL) == -1)
{
print_error ("sigaction: %s", strerror (errno));
exit (EXIT_FAILURE);
}
}
// --- Application data --------------------------------------------------------
enum
{
IRC_USER_MODE_INVISIBLE = (1 << 0),
IRC_USER_MODE_RX_WALLOPS = (1 << 1),
IRC_USER_MODE_RESTRICTED = (1 << 2),
IRC_USER_MODE_OPERATOR = (1 << 3),
IRC_USER_MODE_RX_SERVER_NOTICES = (1 << 4)
};
struct connection
{
struct connection *next; ///< The next link in a chain
struct connection *prev; ///< The previous link in a chain
struct server_context *ctx; ///< Server context
int socket_fd; ///< The TCP socket
struct str read_buffer; ///< Unprocessed input
struct str write_buffer; ///< Output yet to be sent out
unsigned initialized : 1; ///< Has any data been received yet?
unsigned ssl_rx_want_tx : 1; ///< SSL_read() wants to write
unsigned ssl_tx_want_rx : 1; ///< SSL_write() wants to read
SSL_CTX *ssl_ctx; ///< SSL context
SSL *ssl; ///< SSL connection
char *nickname; ///< IRC nickname (main identifier)
char *username; ///< IRC username
char *fullname; ///< IRC fullname (e-mail)
char *hostname; ///< Hostname shown to the network
unsigned mode; ///< User's mode
char *away_message; ///< Away message
};
static void
connection_init (struct connection *self)
{
memset (self, 0, sizeof *self);
self->socket_fd = -1;
str_init (&self->read_buffer);
str_init (&self->write_buffer);
}
static void
connection_free (struct connection *self)
{
if (!soft_assert (self->socket_fd == -1))
xclose (self->socket_fd);
if (self->ssl_ctx)
SSL_CTX_free (self->ssl_ctx);
if (self->ssl)
SSL_free (self->ssl);
str_free (&self->read_buffer);
str_free (&self->write_buffer);
free (self->nickname);
free (self->username);
free (self->fullname);
free (self->hostname);
free (self->away_message);
}
enum
{
IRC_CHAN_MODE_INVITE_ONLY = (1 << 0),
IRC_CHAN_MODE_MODERATED = (1 << 1),
IRC_CHAN_MODE_NO_OUTSIDE_MSGS = (1 << 2),
IRC_CHAN_MODE_SECRET = (1 << 3),
IRC_CHAN_MODE_PRIVATE = (1 << 4),
IRC_CHAN_MODE_PROTECTED_TOPIC = (1 << 5),
IRC_CHAN_MODE_QUIET = (1 << 6)
};
struct channel
{
struct server_context *ctx; ///< Server context
char *name; ///< Channel name
unsigned modes; ///< Channel modes
char *key; ///< Channel key
long user_limit; ///< User limit or -1
struct str_vector ban_list; ///< Ban list
struct str_vector exception_list; ///< Exceptions from bans
struct str_vector invite_list; ///< Exceptions from +I
};
static void
channel_init (struct channel *self)
{
memset (self, 0, sizeof *self);
str_vector_init (&self->ban_list);
str_vector_init (&self->exception_list);
str_vector_init (&self->invite_list);
}
static void
channel_free (struct channel *self)
{
free (self->name);
free (self->key);
str_vector_free (&self->ban_list);
str_vector_free (&self->exception_list);
str_vector_free (&self->invite_list);
}
struct server_context
{
struct str_map config; ///< Server configuration
int listen_fd; ///< Listening socket FD
struct connection *clients; ///< Client connections
struct str_map users; ///< Maps nicknames to connections
struct str_map channels; ///< Maps channel names to data
struct poller poller; ///< Manages polled description
bool polling; ///< The event loop is running
};
static void
server_context_init (struct server_context *self)
{
str_map_init (&self->config);
self->config.free = free;
load_config_defaults (&self->config, g_config_table);
self->listen_fd = -1;
self->clients = NULL;
str_map_init (&self->users);
// TODO: set channel_free() as the free function?
str_map_init (&self->channels);
poller_init (&self->poller);
self->polling = false;
}
static void
server_context_free (struct server_context *self)
{
str_map_free (&self->config);
if (self->listen_fd != -1)
xclose (self->listen_fd);
// TODO: terminate the connections properly before this is called
struct connection *link, *tmp;
for (link = self->clients; link; link = tmp)
{
tmp = link->next;
connection_free (link);
free (link);
}
str_map_free (&self->users);
str_map_free (&self->channels);
poller_free (&self->poller);
}
// --- Main program ------------------------------------------------------------
static size_t network_error_domain_tag;
#define NETWORK_ERROR (error_resolve_domain (&network_error_domain_tag))
enum
{
NETWORK_ERROR_INVALID_CONFIGURATION,
NETWORK_ERROR_FAILED
};
static bool
irc_autodetect_ssl (struct connection *conn)
{
// Trivial SSL/TLS autodetection. The first block of data returned by
// recv() must be at least three bytes long for this to work reliably,
// but that should not pose a problem in practice.
//
// SSL2: 1xxx xxxx | xxxx xxxx | <1>
// (message length) (client hello)
// SSL3/TLS: <22> | <3> | xxxx xxxx
// (handshake)| (protocol version)
//
// Such byte sequences should never occur at the beginning of regular IRC
// communication, which usually begins with USER/NICK/PASS/SERVICE.
char buf[3];
start:
switch (recv (conn->socket_fd, buf, sizeof buf, MSG_PEEK))
{
case 3:
if ((buf[0] & 0x80) && buf[2] == 1)
return true;
case 2:
if (buf[0] == 22 && buf[1] == 3)
return true;
break;
case 1:
if (buf[0] == 22)
return true;
break;
case 0:
break;
default:
if (errno == EINTR)
goto start;
}
return false;
}
static int
irc_ssl_verify_callback (int verify_ok, X509_STORE_CTX *ctx)
{
(void) verify_ok;
(void) ctx;
// We only want to provide additional privileges based on the client's
// certificate, so let's not terminate the connection because of a failure.
return 1;
}
static bool
irc_initialize_ssl (struct connection *conn)
{
struct server_context *ctx = conn->ctx;
conn->ssl_ctx = SSL_CTX_new (SSLv23_server_method ());
if (!conn->ssl_ctx)
goto error_ssl_1;
SSL_CTX_set_verify (conn->ssl_ctx,
SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, irc_ssl_verify_callback);
// XXX: maybe we should call SSL_CTX_set_options() for some workarounds
conn->ssl = SSL_new (conn->ssl_ctx);
if (!conn->ssl)
goto error_ssl_2;
const char *ssl_cert = str_map_find (&ctx->config, "ssl_cert");
if (ssl_cert
&& !SSL_CTX_use_certificate_chain_file (conn->ssl_ctx, ssl_cert))
{
// XXX: perhaps we should read the file ourselves for better messages
print_error ("%s: %s", "setting the SSL client certificate failed",
ERR_error_string (ERR_get_error (), NULL));
}
const char *ssl_key = str_map_find (&ctx->config, "ssl_key");
if (ssl_key
&& !SSL_use_PrivateKey_file (conn->ssl, ssl_key, SSL_FILETYPE_PEM))
{
// XXX: perhaps we should read the file ourselves for better messages
print_error ("%s: %s", "setting the SSL private key failed",
ERR_error_string (ERR_get_error (), NULL));
}
// TODO: SSL_check_private_key(conn->ssl)? It is has probably already been
// checked by SSL_use_PrivateKey_file() above.
SSL_set_accept_state (conn->ssl);
if (!SSL_set_fd (conn->ssl, conn->socket_fd))
goto error_ssl_3;
// Gah, spare me your awkward semantics, I just want to push data!
// XXX: do we want SSL_MODE_AUTO_RETRY as well? I guess not.
SSL_set_mode (conn->ssl,
SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER | SSL_MODE_ENABLE_PARTIAL_WRITE);
return true;
error_ssl_3:
SSL_free (conn->ssl);
conn->ssl = NULL;
error_ssl_2:
SSL_CTX_free (conn->ssl_ctx);
conn->ssl_ctx = NULL;
error_ssl_1:
// XXX: these error strings are really nasty; also there could be
// multiple errors on the OpenSSL stack.
print_error ("%s: %s", "could not initialize SSL",
ERR_error_string (ERR_get_error (), NULL));
return false;
}
static void
connection_abort (struct connection *conn, const char *reason)
{
// TODO: send a QUIT message with `reason' || "Client exited"
(void) reason;
// TODO: do further cleanup if the client has successfully registered
struct server_context *ctx = conn->ctx;
ssize_t i = poller_find_by_fd (&ctx->poller, conn->socket_fd);
if (i != -1)
poller_remove_at_index (&ctx->poller, i);
xclose (conn->socket_fd);
conn->socket_fd = -1;
connection_free (conn);
LIST_UNLINK (ctx->clients, conn);
free (conn);
}
static void
irc_process_message (const struct irc_message *msg,
const char *raw, void *user_data)
{
struct connection *conn = user_data;
// TODO
}
static bool
irc_try_read (struct connection *conn)
{
// TODO
return false;
}
static bool
irc_try_read_ssl (struct connection *conn)
{
if (conn->ssl_tx_want_rx)
return true;
struct str *buf = &conn->read_buffer;
conn->ssl_rx_want_tx = false;
while (true)
{
str_ensure_space (buf, 512);
int n_read = SSL_read (conn->ssl, buf->str + buf->len,
buf->alloc - buf->len - 1 /* null byte */);
const char *error_info = NULL;
switch (xssl_get_error (conn->ssl, n_read, &error_info))
{
case SSL_ERROR_NONE:
buf->str[buf->len += n_read] = '\0';
// TODO: discard characters above the 512 character limit
irc_process_buffer (buf, irc_process_message, conn);
continue;
case SSL_ERROR_ZERO_RETURN:
connection_abort (conn, NULL);
return false;
case SSL_ERROR_WANT_READ:
return true;
case SSL_ERROR_WANT_WRITE:
conn->ssl_rx_want_tx = true;
return false;
case XSSL_ERROR_TRY_AGAIN:
continue;
default:
print_debug ("%s: %s: %s", __func__, "SSL_read", error_info);
connection_abort (conn, error_info);
return false;
}
}
}
static bool
irc_try_write (struct connection *conn)
{
// TODO
return false;
}
static bool
irc_try_write_ssl (struct connection *conn)
{
if (conn->ssl_rx_want_tx)
return true;
struct str *buf = &conn->write_buffer;
conn->ssl_tx_want_rx = false;
while (buf->len)
{
int n_written = SSL_write (conn->ssl, buf->str, buf->len);
const char *error_info = NULL;
switch (xssl_get_error (conn->ssl, n_written, &error_info))
{
case SSL_ERROR_NONE:
str_remove_slice (buf, 0, n_written);
continue;
case SSL_ERROR_ZERO_RETURN:
connection_abort (conn, NULL);
return false;
case SSL_ERROR_WANT_WRITE:
return true;
case SSL_ERROR_WANT_READ:
conn->ssl_tx_want_rx = true;
return false;
case XSSL_ERROR_TRY_AGAIN:
continue;
default:
print_debug ("%s: %s: %s", __func__, "SSL_write", error_info);
connection_abort (conn, error_info);
return false;
}
}
return true;
}
static void
on_irc_client_ready (const struct pollfd *pfd, void *user_data)
{
// XXX: check/load `ssl_cert' and `ssl_key' earlier?
struct connection *conn = user_data;
if (!conn->initialized)
{
hard_assert (pfd->events == POLLIN);
// XXX: what with the error from irc_initialize_ssl()?
if (irc_autodetect_ssl (conn) && !irc_initialize_ssl (conn))
{
connection_abort (conn, NULL);
return;
}
conn->initialized = true;
}
// FIXME: aborting a connection inside try_read() will fuck things up
int new_events = 0;
if (conn->ssl)
{
// Reads may want to write, writes may want to read, poll() may
// return unexpected things in `revents'... let's try both
irc_try_read_ssl (conn) && irc_try_write_ssl (conn);
new_events |= POLLIN;
if (conn->write_buffer.len || conn->ssl_rx_want_tx)
new_events |= POLLOUT;
// While we're waiting for an opposite event, we ignore the original
if (conn->ssl_rx_want_tx) new_events &= ~POLLIN;
if (conn->ssl_tx_want_rx) new_events &= ~POLLOUT;
}
else
{
irc_try_read (conn) && irc_try_write (conn);
new_events |= POLLIN;
if (conn->write_buffer.len)
new_events |= POLLOUT;
}
hard_assert (new_events != 0);
if (pfd->events != new_events)
poller_set (&conn->ctx->poller, conn->socket_fd, new_events,
(poller_dispatcher_func) on_irc_client_ready, conn);
}
static void
on_irc_connection_available (const struct pollfd *pfd, void *user_data)
{
(void) pfd;
struct server_context *ctx = user_data;
// TODO: stop accepting new connections when `max_connections' is reached
while (true)
{
// XXX: `struct sockaddr_storage' is not the most portable thing
struct sockaddr_storage peer;
socklen_t peer_len = sizeof peer;
int fd = accept (ctx->listen_fd, (struct sockaddr *) &peer, &peer_len);
if (fd == -1)
{
if (errno == EAGAIN)
break;
if (errno == EINTR)
continue;
if (errno == ECONNABORTED)
continue;
// TODO: handle resource exhaustion (EMFILE, ENFILE) specially
// (stop accepting new connections and wait until we close some).
print_fatal ("%s: %s", "accept", strerror (errno));
// FIXME: handle this better, bring the server down cleanly.
exit (EXIT_FAILURE);
}
char host[NI_MAXHOST] = "unknown", port[NI_MAXSERV] = "unknown";
int err = getnameinfo ((struct sockaddr *) &peer, peer_len,
host, sizeof host, port, sizeof port, AI_NUMERICSERV);
if (err)
print_debug ("%s: %s", "getnameinfo", gai_strerror (err));
print_debug ("accepted connection from %s:%s", host, port);
struct connection *conn = xmalloc (sizeof *conn);
connection_init (conn);
conn->socket_fd = fd;
conn->hostname = xstrdup (host);
LIST_PREPEND (ctx->clients, conn);
// TODO: set a timeout on the socket, something like 3 minutes, then we
// should terminate the connection.
poller_set (&ctx->poller, conn->socket_fd, POLLIN,
(poller_dispatcher_func) on_irc_client_ready, conn);
}
}
static bool
irc_listen (struct server_context *ctx, struct error **e)
{
const char *bind_host = str_map_find (&ctx->config, "bind_host");
const char *bind_port = str_map_find (&ctx->config, "bind_port");
hard_assert (bind_port != NULL); // We have a default value for this
struct addrinfo gai_hints, *gai_result, *gai_iter;
memset (&gai_hints, 0, sizeof gai_hints);
gai_hints.ai_socktype = SOCK_STREAM;
gai_hints.ai_flags = AI_PASSIVE;
int err = getaddrinfo (bind_host, bind_port, &gai_hints, &gai_result);
if (err)
{
error_set (e, NETWORK_ERROR, NETWORK_ERROR_FAILED, "%s: %s: %s",
"network setup failed", "getaddrinfo", gai_strerror (err));
return false;
}
int sockfd;
char real_host[NI_MAXHOST], real_port[NI_MAXSERV];
for (gai_iter = gai_result; gai_iter; gai_iter = gai_iter->ai_next)
{
sockfd = socket (gai_iter->ai_family,
gai_iter->ai_socktype, gai_iter->ai_protocol);
if (sockfd == -1)
continue;
set_cloexec (sockfd);
int yes = 1;
soft_assert (setsockopt (sockfd, SOL_SOCKET, SO_KEEPALIVE,
&yes, sizeof yes) != -1);
soft_assert (setsockopt (sockfd, SOL_SOCKET, SO_REUSEADDR,
&yes, sizeof yes) != -1);
real_host[0] = real_port[0] = '\0';
err = getnameinfo (gai_iter->ai_addr, gai_iter->ai_addrlen,
real_host, sizeof real_host, real_port, sizeof real_port,
NI_NUMERICHOST | NI_NUMERICSERV);
if (err)
print_debug ("%s: %s", "getnameinfo", gai_strerror (err));
if (bind (sockfd, gai_iter->ai_addr, gai_iter->ai_addrlen))
print_error ("bind() to %s:%s failed: %s",
real_host, real_port, strerror (errno));
else if (listen (sockfd, 16 /* arbitrary number */))
print_error ("listen() at %s:%s failed: %s",
real_host, real_port, strerror (errno));
else
break;
xclose (sockfd);
}
freeaddrinfo (gai_result);
if (!gai_iter)
{
error_set (e, NETWORK_ERROR, NETWORK_ERROR_FAILED,
"network setup failed");
return false;
}
ctx->listen_fd = sockfd;
poller_set (&ctx->poller, ctx->listen_fd, POLLIN,
(poller_dispatcher_func) on_irc_connection_available, ctx);
print_status ("listening at %s:%s", real_host, real_port);
return true;
}
static void
on_signal_pipe_readable (const struct pollfd *fd, struct server_context *ctx)
{
char *dummy;
(void) read (fd->fd, &dummy, 1);
#if 0
// TODO
if (g_termination_requested && !ctx->quitting)
{
initiate_quit (ctx);
}
#endif
}
static void
print_usage (const char *program_name)
{
fprintf (stderr,
"Usage: %s [OPTION]...\n"
"Experimental IRC server.\n"
"\n"
" -d, --debug run in debug mode (do not daemonize)\n"
" -h, --help display this help and exit\n"
" -V, --version output version information and exit\n"
" --write-default-cfg [filename]\n"
" write a default configuration file and exit\n",
program_name);
}
int
main (int argc, char *argv[])
{
const char *invocation_name = argv[0];
struct error *e = NULL;
static struct option opts[] =
{
{ "debug", no_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ "write-default-cfg", optional_argument, NULL, 'w' },
{ NULL, 0, NULL, 0 }
};
while (1)
{
int c, opt_index;
c = getopt_long (argc, argv, "dhV", opts, &opt_index);
if (c == -1)
break;
switch (c)
{
case 'd':
g_debug_mode = true;
break;
case 'h':
print_usage (invocation_name);
exit (EXIT_SUCCESS);
case 'V':
printf (PROGRAM_NAME " " PROGRAM_VERSION "\n");
exit (EXIT_SUCCESS);
case 'w':
{
char *filename = write_default_config (optarg, g_config_table, &e);
if (!filename)
{
print_fatal ("%s", e->message);
error_free (e);
exit (EXIT_FAILURE);
}
print_status ("configuration written to `%s'", filename);
free (filename);
exit (EXIT_SUCCESS);
}
default:
print_fatal ("error in options");
exit (EXIT_FAILURE);
}
}
print_status (PROGRAM_NAME " " PROGRAM_VERSION " starting");
setup_signal_handlers ();
SSL_library_init ();
atexit (EVP_cleanup);
SSL_load_error_strings ();
// XXX: ERR_load_BIO_strings()? Anything else?
atexit (ERR_free_strings);
struct server_context ctx;
server_context_init (&ctx);
if (!read_config_file (&ctx.config, &e))
{
print_fatal ("error loading configuration: %s", e->message);
error_free (e);
exit (EXIT_FAILURE);
}
poller_set (&ctx.poller, g_signal_pipe[0], POLLIN,
(poller_dispatcher_func) on_signal_pipe_readable, &ctx);
if (!irc_listen (&ctx, &e))
{
print_error ("%s", e->message);
error_free (e);
exit (EXIT_FAILURE);
}
// TODO: daemonize
ctx.polling = true;
while (ctx.polling)
poller_run (&ctx.poller);
server_context_free (&ctx);
return EXIT_SUCCESS;
}

1661
src/zyklonb.c
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