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|
/* According to POSIX.1-2001, POSIX.1-2008 */
#include <sys/select.h>
#include <stdio.h>
#include "error/error.h"
#include "parameters/parameters.h"
#include "irc/irc.h"
#include "meta_net/meta_net.h"
#include "pervasive.h"
static void print_help (const char runnable [const restrict static 1])
{
printf
(
"JabberHive - IRC Gateway\n"
"Software Version %d\n"
"Protocol Version %d\n"
"\nUsages:\n"
" GATEWAY:\t%s SOCKET_NAME IRC_SERVER IRC_NICK IRC_CHANNEL IRC_PORT"
" [OPTIONS]\n"
" SHOW HELP:\tAnything else.\n"
"\nParameters:\n"
" SOCKET_NAME:\tValid UNIX socket.\n"
" IRC_SERVER:\tAddress of the IRC server. Prefixing with '#' will"
" enable SSL.\n"
" IRC_NICK:\tIRC nick to be used.\n"
" IRC_CHANNEL:\tIRC channel to connect to.\n"
" IRC_PORT:\tPort to use for the IRC connection.\n"
"\nOptions:\n"
" -6, --ipv6:\tEnables IPv6.\n"
/*
" -l, --request-pipelining:\tRequests the JabberHive pipelining mode.\n"
*/
" -c, --print-chat:\tDisplays IRC conversations on stdout.\n"
" -i, --print-additional-info:\tDisplays received JH info messages on"
" stdout.\n"
" -u USERNAME, --username USERNAME:\tSets the IRC username.\n"
" -r REALNAME, --realname REALNAME:\tSets the IRC realname.\n"
" -p PASSWORD, --password PASSWORD:\tSets the IRC password.\n",
JH_PROGRAM_VERSION,
JH_PROTOCOL_VERSION,
runnable
);
}
static int initialize
(
struct JH_irc irc [const restrict static 1],
struct JH_meta_net socket [const restrict static 1],
struct JH_parameters params [const restrict static 1],
const int argc,
const char * argv [const static argc]
)
{
if (JH_parameters_initialize(params, argc, argv) < 0)
{
print_help(argv[0]);
return -1;
}
JH_meta_net_initialize(socket);
if (JH_irc_initialize(irc, params, socket) < 0)
{
JH_meta_net_finalize(socket);
return -1;
}
return 0;
}
static int connect_all
(
struct JH_irc irc [const restrict static 1],
struct JH_meta_net socket [const restrict static 1],
struct JH_parameters params [const restrict static 1]
)
{
if (JH_meta_net_connect(socket, params) < 0)
{
return -1;
}
if (JH_irc_connect(irc) < 0)
{
return -1;
}
return 0;
}
static int event_handling_loop
(
struct JH_irc irc [const restrict static 1],
struct JH_meta_net socket [const restrict static 1],
struct JH_parameters params [const restrict static 1]
)
{
struct timeval tv;
fd_set in_set, out_set;
int fd_max, error;
int timeouts;
timeouts = 0;
for (;;)
{
tv.tv_usec = 250000;
tv.tv_sec = 0;
FD_ZERO(&in_set);
FD_ZERO(&out_set);
fd_max = 0;
if (JH_irc_pre_select(irc, &in_set, &out_set, &fd_max) < 0)
{
JH_meta_net_finalize(socket);
return -1;
}
if
(
JH_meta_net_pre_select
(
socket,
&in_set,
&out_set,
&fd_max
) < 0
)
{
JH_irc_finalize(irc);
return -1;
}
error =
select
(
(fd_max + 1),
&in_set,
&out_set,
(fd_set *) NULL,
&tv
);
if (error < 0)
{
JH_ERROR
(
stderr,
"Unable to select the sockets: %s.",
strerror(error)
);
}
else if (error == 0)
{
timeouts += 1;
/* 1200 timeouts => 5min */
if (timeouts >= 1200)
{
if (JH_irc_is_testing_connection(irc))
{
JH_S_ERROR
(
stderr,
"Timed out due to lack of response to connection test."
);
JH_irc_finalize(irc);
return -1;
}
else if (JH_irc_start_connection_test(irc) < 0)
{
JH_S_ERROR(stderr, "Timed out due to failed connection test.");
JH_irc_finalize(irc);
return -1;
}
timeouts = 0;
}
}
else
{
timeouts = 0;
}
if (JH_irc_post_select(irc, &in_set, &out_set) < 0)
{
JH_meta_net_finalize(socket);
return -1;
}
if
(
JH_meta_net_post_select
(
socket,
&in_set,
&out_set
) < 0
)
{
JH_irc_finalize(irc);
return -1;
}
JH_meta_net_handle_reply
(
socket,
irc,
params
);
}
return 0;
}
int main (const int argc, const char * argv [const static argc])
{
struct JH_parameters params;
struct JH_meta_net socket;
struct JH_irc irc;
if (initialize(&irc, &socket, ¶ms, argc, argv) < 0)
{
return -1;
}
if (connect_all(&irc, &socket, ¶ms) < 0)
{
JH_irc_finalize(&irc);
JH_meta_net_finalize(&socket);
return -1;
}
return event_handling_loop(&irc, &socket, ¶ms);
}
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