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/* Copyright (C) 2019 C. McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <err.h>
#include <limits.h>
#include <poll.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sysexits.h>
#include <tls.h>
#include <unistd.h>
#include "bounce.h"
static char *censor(char *arg) {
char *dup = strdup(arg);
if (!dup) err(EX_OSERR, "strdup");
memset(arg, '\0', strlen(dup));
arg[0] = '*';
return dup;
}
int main(int argc, char *argv[]) {
const char *localHost = "localhost";
const char *localPort = "6697";
const char *localPass = NULL;
char certPath[PATH_MAX] = "";
char privPath[PATH_MAX] = "";
const char *host = NULL;
const char *port = "6697";
const char *pass = NULL;
const char *auth = NULL;
const char *nick = NULL;
const char *user = NULL;
const char *real = NULL;
const char *join = NULL;
int opt;
while (0 < (opt = getopt(argc, argv, "C:H:K:P:W:a:h:j:n:p:r:u:w:"))) {
switch (opt) {
break; case 'C': strlcpy(certPath, optarg, sizeof(certPath));
break; case 'H': localHost = optarg;
break; case 'K': strlcpy(privPath, optarg, sizeof(privPath));
break; case 'P': localPort = optarg;
break; case 'W': localPass = censor(optarg);
break; case 'a': auth = censor(optarg);
break; case 'h': host = optarg;
break; case 'j': join = optarg;
break; case 'n': nick = optarg;
break; case 'p': port = optarg;
break; case 'r': real = optarg;
break; case 'u': user = optarg;
break; case 'w': pass = censor(optarg);
break; default: return EX_USAGE;
}
}
if (!certPath[0]) {
snprintf(certPath, sizeof(certPath), DEFAULT_CERT_PATH, localHost);
}
if (!privPath[0]) {
snprintf(privPath, sizeof(privPath), DEFAULT_PRIV_PATH, localHost);
}
if (!host) errx(EX_USAGE, "no host");
if (!nick) {
nick = getenv("USER");
if (!nick) errx(EX_CONFIG, "USER unset");
}
if (!user) user = nick;
if (!real) real = nick;
listenConfig(certPath, privPath);
enum { BindCap = 8 };
int bind[BindCap];
size_t bindLen = listenBind(bind, BindCap, localHost, localPort);
int server = serverConnect(host, port);
serverLogin(pass, auth, nick, user, real);
while (!stateReady()) {
serverRecv();
}
if (join) serverJoin(join);
for (size_t i = 0; i < bindLen; ++i) {
int error = listen(bind[i], 1);
if (error) err(EX_IOERR, "listen");
}
// Wishing for struct-of-arrays...
struct pollfd fds[BindCap];
for (size_t i = 0; i < bindLen; ++i) {
fds[i].fd = bind[i];
fds[i].events = POLLIN;
}
while (0 < poll(fds, bindLen, -1)) {
for (size_t i = 0; i < bindLen; ++i) {
if (!fds[i].revents) continue;
struct tls *client;
int fd = listenAccept(&client, fds[i].fd);
}
}
}
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