diff options
Diffstat (limited to 'qemu-char.c')
| -rw-r--r-- | qemu-char.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/qemu-char.c b/qemu-char.c index c2aaaee..398baf1 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -2141,14 +2141,17 @@ typedef struct { static void tcp_chr_accept(void *opaque); +static void tcp_chr_connect(void *opaque); + static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) { TCPCharDriver *s = chr->opaque; if (s->connected) { return send_all(s->fd, buf, len); } else { - /* XXX: indicate an error ? */ - return len; + /* (Re-)connect for unconnected writing */ + tcp_chr_connect(chr); + return 0; } } @@ -2238,6 +2241,9 @@ static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) if (fd < 0) continue; +#ifndef MSG_CMSG_CLOEXEC + qemu_set_cloexec(fd); +#endif if (s->msgfd != -1) close(s->msgfd); s->msgfd = fd; @@ -2253,6 +2259,7 @@ static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) struct cmsghdr cmsg; char control[CMSG_SPACE(sizeof(int))]; } msg_control; + int flags = 0; ssize_t ret; iov[0].iov_base = buf; @@ -2263,9 +2270,13 @@ static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) msg.msg_control = &msg_control; msg.msg_controllen = sizeof(msg_control); - ret = recvmsg(s->fd, &msg, 0); - if (ret > 0 && s->is_unix) +#ifdef MSG_CMSG_CLOEXEC + flags |= MSG_CMSG_CLOEXEC; +#endif + ret = recvmsg(s->fd, &msg, flags); + if (ret > 0 && s->is_unix) { unix_process_msgfd(chr, &msg); + } return ret; } @@ -2446,7 +2457,7 @@ static CharDriverState *qemu_chr_open_socket(QemuOpts *opts) if (is_listen) { fd = inet_listen_opts(opts, 0, NULL); } else { - fd = inet_connect_opts(opts, NULL); + fd = inet_connect_opts(opts, NULL, NULL); } } if (fd < 0) { |