diff options
Diffstat (limited to 'irc.c')
| -rw-r--r-- | irc.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/irc.c b/irc.c deleted file mode 100644 index 56a5dc0..0000000 --- a/irc.c +++ /dev/null @@ -1,147 +0,0 @@ -/* Copyright (C) 2018 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 <fcntl.h> -#include <netdb.h> -#include <netinet/in.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/socket.h> -#include <sysexits.h> -#include <tls.h> -#include <unistd.h> - -#include "chat.h" - -static struct tls *client; - -int ircConnect(void) { - int error; - - struct tls_config *config = tls_config_new(); - error = tls_config_set_ciphers(config, "compat"); - if (error) errx(EX_SOFTWARE, "tls_config"); - - client = tls_client(); - if (!client) errx(EX_SOFTWARE, "tls_client"); - - error = tls_configure(client, config); - if (self.insecure) { - tls_config_insecure_noverifycert(config); - tls_config_insecure_noverifyname(config); - } - if (error) errx(EX_SOFTWARE, "tls_configure: %s", tls_error(client)); - tls_config_free(config); - - struct addrinfo *head; - struct addrinfo hints = { - .ai_family = AF_UNSPEC, - .ai_socktype = SOCK_STREAM, - .ai_protocol = IPPROTO_TCP, - }; - error = getaddrinfo(self.host, self.port, &hints, &head); - if (error) errx(EX_NOHOST, "getaddrinfo: %s", gai_strerror(error)); - - int sock = -1; - for (struct addrinfo *ai = head; ai; ai = ai->ai_next) { - sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); - if (sock < 0) err(EX_OSERR, "socket"); - error = connect(sock, ai->ai_addr, ai->ai_addrlen); - if (!error) break; - - close(sock); - sock = -1; - } - if (sock < 0) err(EX_UNAVAILABLE, "connect"); - freeaddrinfo(head); - - error = fcntl(sock, F_SETFD, FD_CLOEXEC); - if (error) err(EX_IOERR, "fcntl"); - - error = tls_connect_socket(client, sock, self.host); - if (error) errx(EX_PROTOCOL, "tls_connect: %s", tls_error(client)); - - if (self.auth) ircFmt("CAP REQ :sasl\r\n"); - if (self.pass) ircFmt("PASS :%s\r\n", self.pass); - ircFmt("NICK %s\r\n", self.nick); - ircFmt("USER %s 0 * :%s\r\n", self.user, self.real); - - return sock; -} - -void ircWrite(const char *ptr, size_t len) { - while (len) { - ssize_t ret = tls_write(client, ptr, len); - if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT) continue; - if (ret < 0) errx(EX_IOERR, "tls_write: %s", tls_error(client)); - ptr += ret; - len -= ret; - } -} - -void ircFmt(const char *format, ...) { - char *buf; - va_list ap; - va_start(ap, format); - int len = vasprintf(&buf, format, ap); - va_end(ap); - if (!buf) err(EX_OSERR, "vasprintf"); - if (self.raw) { - if (!isatty(STDERR_FILENO)) fprintf(stderr, "<<< %.*s\n", len - 2, buf); - uiFmt(TagRaw, UICold, "\3%d<<<\3 %.*s", IRCWhite, len - 2, buf); - } - ircWrite(buf, len); - free(buf); -} - -void ircQuit(const char *mesg) { - ircFmt("QUIT :%s\r\n", mesg); - self.quit = true; -} - -void ircRead(void) { - static char buf[4096]; - static size_t len; - - ssize_t read; -retry: - read = tls_read(client, &buf[len], sizeof(buf) - len); - if (read == TLS_WANT_POLLIN || read == TLS_WANT_POLLOUT) goto retry; - if (read < 0) errx(EX_IOERR, "tls_read: %s", tls_error(client)); - if (!read) { - if (!self.quit) errx(EX_PROTOCOL, "unexpected eof"); - uiExit(EX_OK); - } - len += read; - - char *crlf; - char *line = buf; - while (NULL != (crlf = memmem(line, &buf[len] - line, "\r\n", 2))) { - crlf[0] = '\0'; - if (self.raw) { - if (!isatty(STDERR_FILENO)) fprintf(stderr, ">>> %s\n", line); - uiFmt(TagRaw, UICold, "\3%d>>>\3 %s", IRCGray, line); - } - handle(line); - line = &crlf[2]; - } - - len -= line - buf; - memmove(buf, line, len); -} |