diff options
| -rw-r--r-- | irc.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/irc.c b/irc.c index 8df3356..3a55432 100644 --- a/irc.c +++ b/irc.c @@ -59,25 +59,32 @@ int ircConnect( if (error) errx(EX_SOFTWARE, "tls_configure"); tls_config_free(config); - struct addrinfo *ai; + struct addrinfo *head; struct addrinfo hints = { .ai_family = AF_UNSPEC, .ai_socktype = SOCK_STREAM, .ai_protocol = IPPROTO_TCP, }; - error = getaddrinfo(host, port, &hints, &ai); + error = getaddrinfo(host, port, &hints, &head); 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"); + 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 = 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"); |