Move listen code to listen.c

1 files changed, 99 insertions, 0 deletions

diff --git a/bouncer.c b/bouncer.c
new file mode 100644
index 0000000..3bf44cd
--- /dev/null
+++ b/bouncer.c
@@ -0,0 +1,99 @@
+/* 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 <sysexits.h>
+#include <tls.h>
+#include <unistd.h>
+
+#include "bouncer.h"
+
+static char *censor(char *arg) {
+	char *dup = strdup(arg);
+	if (!dup) err(EX_OSERR, "strdup");
+	memset(arg, '*', strlen(dup));
+	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;
+
+	enum { PollCap = 64 };
+	struct pollfd fds[PollCap];
+
+	listenConfig(certPath, privPath);
+	size_t binds = listenBind(fds, PollCap, localHost, localPort);
+
+	while (0 < poll(fds, binds, -1)) {
+		for (size_t i = 0; i < binds; ++i) {
+			if (!fds[i].revents) continue;
+			struct tls *client = listenAccept(&fds[binds], fds[i].fd);
+		}
+	}
+}