ccan/io: add io_conn_exclusive and io_conn_out_exclusive.

[ccan] / ccan / net / net.c

diff --git a/ccan/net/net.c b/ccan/net/net.c
index 61efd5b8fd4b55643b157d3cf90e73818b2a20f4..11c6b670aa456809f528c0eb6d905d2cb3c0b5bb 100644 (file)
--- a/ccan/net/net.c
+++ b/ccan/net/net.c
@@ -231,14 +231,16 @@ static bool should_listen(const struct addrinfo *addrinfo)
 
 static int make_listen_fd(const struct addrinfo *addrinfo)
 {
-       int saved_errno, fd, on = 1;
+       int fd, on = 1;
 
        fd = socket(addrinfo->ai_family, addrinfo->ai_socktype,
                    addrinfo->ai_protocol);
        if (fd < 0)
                return -1;
 
-       setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+       if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) != 0)
+               goto fail;
+
        if (bind(fd, addrinfo->ai_addr, addrinfo->ai_addrlen) != 0)
                goto fail;
 
@@ -247,9 +249,7 @@ static int make_listen_fd(const struct addrinfo *addrinfo)
        return fd;
 
 fail:
-       saved_errno = errno;
-       close(fd);
-       errno = saved_errno;
+       close_noerr(fd);
        return -1;
 }