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Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/net/socket.c b/net/socket.c
index e61309d8d5..fb21e20a54 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -262,6 +262,11 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr
return -1;
}
+ /* Allow multiple sockets to bind the same multicast ip and port by setting
+ * SO_REUSEADDR. This is the only situation where SO_REUSEADDR should be set
+ * on windows. Use socket_set_fast_reuse otherwise as it sets SO_REUSEADDR
+ * only on posix systems.
+ */
val = 1;
ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
if (ret < 0) {
@@ -510,7 +515,7 @@ static int net_socket_listen_init(NetClientState *peer,
NetClientState *nc;
NetSocketState *s;
struct sockaddr_in saddr;
- int fd, val, ret;
+ int fd, ret;
if (parse_host_port(&saddr, host_str) < 0)
return -1;
@@ -522,9 +527,7 @@ static int net_socket_listen_init(NetClientState *peer,
}
qemu_set_nonblock(fd);
- /* allow fast reuse */
- val = 1;
- qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
+ socket_set_fast_reuse(fd);
ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
if (ret < 0) {
@@ -645,7 +648,7 @@ static int net_socket_udp_init(NetClientState *peer,
const char *lhost)
{
NetSocketState *s;
- int fd, val, ret;
+ int fd, ret;
struct sockaddr_in laddr, raddr;
if (parse_host_port(&laddr, lhost) < 0) {
@@ -661,11 +664,9 @@ static int net_socket_udp_init(NetClientState *peer,
perror("socket(PF_INET, SOCK_DGRAM)");
return -1;
}
- val = 1;
- ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
- &val, sizeof(val));
+
+ ret = socket_set_fast_reuse(fd);
if (ret < 0) {
- perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
closesocket(fd);
return -1;
}