[PATCH v3 2/9] net: use tcp_server_start() for tcp server creation

[Amos Kong <akong@redhat.com>]

Use tcp_server_start in those two functions:
 tcp_start_incoming_migration()
 net_socket_listen_init()

Signed-off-by: Amos Kong <akong@redhat.com>
---
 migration-tcp.c |   21 +++++----------------
 net/socket.c    |   23 +++--------------------
 2 files changed, 8 insertions(+), 36 deletions(-)

diff --git a/migration-tcp.c b/migration-tcp.c
index 35a5781..ecadd10 100644
--- a/migration-tcp.c
+++ b/migration-tcp.c
@@ -157,28 +157,17 @@ out2:
 
 int tcp_start_incoming_migration(const char *host_port)
 {
-    struct sockaddr_in addr;
-    int val;
+    int ret;
     int s;
 
     DPRINTF("Attempting to start an incoming migration\n");
 
-    if (parse_host_port(&addr, host_port) < 0) {
-        fprintf(stderr, "invalid host/port combination: %s\n", host_port);
-        return -EINVAL;
-    }
-
-    s = qemu_socket(PF_INET, SOCK_STREAM, 0);
-    if (s == -1) {
-        return -socket_error();
+    ret = tcp_server_start(host_port, &s);
+    if (ret < 0) {
+        fprintf(stderr, "tcp_server_start: %s\n", strerror(-ret));
+        return ret;
     }
 
-    val = 1;
-    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
-
-    if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
-        goto err;
-    }
     if (listen(s, 1) == -1) {
         goto err;
     }
diff --git a/net/socket.c b/net/socket.c
index 0bcf229..5feb3d2 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -403,31 +403,14 @@ static int net_socket_listen_init(VLANState *vlan,
                                   const char *host_str)
 {
     NetSocketListenState *s;
-    int fd, val, ret;
-    struct sockaddr_in saddr;
-
-    if (parse_host_port(&saddr, host_str) < 0)
-        return -1;
+    int fd, ret;
 
     s = g_malloc0(sizeof(NetSocketListenState));
 
-    fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
-    if (fd < 0) {
-        perror("socket");
-        g_free(s);
-        return -1;
-    }
-    socket_set_nonblock(fd);
-
-    /* allow fast reuse */
-    val = 1;
-    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
-
-    ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
+    ret = tcp_server_start(host_str, &fd);
     if (ret < 0) {
-        perror("bind");
+        error_report("tcp_server_start: %s", strerror(-ret));
         g_free(s);
-        closesocket(fd);
         return -1;
     }
     ret = listen(fd, 0);