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authorAnthony Liguori <aliguori@us.ibm.com>2012-09-05 13:52:49 -0500
committerAnthony Liguori <aliguori@us.ibm.com>2012-09-10 10:57:52 -0500
commit455aa1e0818653c41fd794435b982426ce21ba2f (patch)
tree6146686447d40d4bfc2fd93bf893735037007c4f
parent8bf188aa18ef7a8355d9edbd43871d590468c4ed (diff)
downloadqemu-455aa1e0818653c41fd794435b982426ce21ba2f.zip
socket: don't attempt to reconnect a TCP socket in server mode
Commit c3767ed0eb5d0bb25fe409ae5dec06e3411ff1b6 introduced a possible SEGV when using a socket chardev with server=on because it assumes that all TCP sockets are in client mode. This patch adds a check to only reconnect when in client mode. Cc: Lei Li <lilei@linux.vnet.ibm.com> Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-rw-r--r--qemu-char.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/qemu-char.c b/qemu-char.c
index 398baf1e04..767da93862 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2148,10 +2148,12 @@ 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 {
+ } else if (s->listen_fd == -1) {
/* (Re-)connect for unconnected writing */
tcp_chr_connect(chr);
return 0;
+ } else {
+ return len;
}
}