[tcpip] Fix dubious calculation of min_port

Detected using sparse.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/net/tcpip.c b/src/net/tcpip.c
index 261da5822de9e867abb6e1afe91aeb28101ba697..5ad982fd165086413c952a87410457f308865b2f 100644 (file)
--- a/src/net/tcpip.c
+++ b/src/net/tcpip.c
@@ -235,7 +235,7 @@ int tcpip_bind ( struct sockaddr_tcpip *st_local,
        /* Otherwise, find an available port in the range [1,1023] or
         * [1025,65535] as appropriate.
         */
-       min_port = ( ( ( ! flags ) & TCPIP_BIND_PRIVILEGED ) + 1 );
+       min_port = ( ( ( ~flags ) & TCPIP_BIND_PRIVILEGED ) + 1 );
        max_port = ( ( flags & TCPIP_BIND_PRIVILEGED ) - 1 );
        offset = random();
        for ( i = 0 ; i <= max_port ; i++ ) {