static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay, bool is_listen, bool is_telnet, bool is_waitconnect, Error **errp) { CharDriverState *chr = NULL; TCPCharDriver *s = NULL; char host[NI_MAXHOST], serv[NI_MAXSERV]; const char *left = "", *right = ""; struct sockaddr_storage ss; socklen_t ss_len = sizeof(ss); memset(&ss, 0, ss_len); if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) { error_setg_errno(errp, errno, "getsockname"); return NULL; } chr = g_malloc0(sizeof(CharDriverState)); s = g_malloc0(sizeof(TCPCharDriver)); s->connected = 0; s->fd = -1; s->listen_fd = -1; s->read_msgfds = 0; s->read_msgfds_num = 0; s->write_msgfds = 0; s->write_msgfds_num = 0; chr->filename = g_malloc(256); switch (ss.ss_family) { #ifndef _WIN32 case AF_UNIX: s->is_unix = 1; snprintf(chr->filename, 256, "unix:%s%s", ((struct sockaddr_un *)(&ss))->sun_path, is_listen ? ",server" : ""); break; #endif case AF_INET6: left = "["; right = "]"; /* fall through */ case AF_INET: s->do_nodelay = do_nodelay; getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host), serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV); snprintf(chr->filename, 256, "%s:%s%s%s:%s%s", is_telnet ? "telnet" : "tcp", left, host, right, serv, is_listen ? ",server" : ""); break; } chr->opaque = s; chr->chr_write = tcp_chr_write; chr->chr_sync_read = tcp_chr_sync_read; chr->chr_close = tcp_chr_close; chr->get_msgfds = tcp_get_msgfds; chr->set_msgfds = tcp_set_msgfds; chr->chr_add_client = tcp_chr_add_client; chr->chr_add_watch = tcp_chr_add_watch; chr->chr_update_read_handler = tcp_chr_update_read_handler; /* be isn't opened until we get a connection */ chr->explicit_be_open = true; if (is_listen) { s->listen_fd = fd; s->listen_chan = io_channel_from_socket(s->listen_fd); s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr); if (is_telnet) { s->do_telnetopt = 1; } } else { s->connected = 1; s->fd = fd; socket_set_nodelay(fd); s->chan = io_channel_from_socket(s->fd); tcp_chr_connect(chr); } if (is_listen && is_waitconnect) { fprintf(stderr, "QEMU waiting for connection on: %s\n", chr->filename); tcp_chr_accept(s->listen_chan, G_IO_IN, chr); qemu_set_nonblock(s->listen_fd); } return chr; }