diff options
Diffstat (limited to 'client.c')
-rw-r--r-- | client.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/client.c b/client.c deleted file mode 100644 index 64f14cf..0000000 --- a/client.c +++ /dev/null @@ -1,129 +0,0 @@ -/* Copyright (C) 2018 Curtis 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 <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sysexits.h> -#include <tls.h> -#include <unistd.h> -#include <netdb.h> -#include <netinet/in.h> -#include <sys/socket.h> - -#include "chat.h" - -static struct tls *client; - -static void webirc(const char *pass) { - const char *ssh = getenv("SSH_CLIENT"); - if (!ssh) return; - int len = strlen(ssh); - const char *sp = strchr(ssh, ' '); - if (sp) len = sp - ssh; - clientFmt( - "WEBIRC %s %s %.*s %.*s\r\n", - pass, chat.user, len, ssh, len, ssh - ); -} - -int clientConnect(const char *host, const char *port, const char *webPass) { - int error; - - struct tls_config *config = tls_config_new(); - error = tls_config_set_ciphers(config, "compat"); - if (error) errx(EX_SOFTWARE, "tls_config: %s", tls_config_error(config)); - - client = tls_client(); - if (!client) errx(EX_SOFTWARE, "tls_client"); - - error = tls_configure(client, config); - if (error) errx(EX_SOFTWARE, "tls_configure"); - tls_config_free(config); - - struct addrinfo *ai; - struct addrinfo hints = { - .ai_family = AF_UNSPEC, - .ai_socktype = SOCK_STREAM, - .ai_protocol = IPPROTO_TCP, - }; - error = getaddrinfo(host, port, &hints, &ai); - if (error) errx(EX_NOHOST, "getaddrinfo: %s", gai_strerror(error)); - - int 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) err(EX_UNAVAILABLE, "connect"); - freeaddrinfo(ai); - - error = tls_connect_socket(client, sock, host); - if (error) err(EX_PROTOCOL, "tls_connect"); - - if (webPass) webirc(webPass); - clientFmt("NICK %s\r\n", chat.nick); - clientFmt("USER %s 0 * :%s\r\n", chat.user, chat.nick); - - return sock; -} - -void clientWrite(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 clientFmt(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 (chat.verbose) uiFmt("<<< %.*s", len - 2, buf); - clientWrite(buf, len); - free(buf); -} - -void clientRead(void) { - static char buf[4096]; - static size_t len; - - ssize_t read = tls_read(client, &buf[len], sizeof(buf) - len); - if (read < 0) errx(EX_IOERR, "tls_read: %s", tls_error(client)); - if (!read) { - uiHide(); - exit(EX_OK); - } - len += read; - - char *crlf, *line = buf; - while ((crlf = strnstr(line, "\r\n", &buf[len] - line))) { - crlf[0] = '\0'; - if (chat.verbose) uiFmt(">>> %s", line); - handle(line); - line = &crlf[2]; - } - - len -= line - buf; - memmove(buf, line, len); -} |