udhcpc: reuse string constant; remove unneeded memset(0)

[oweals/busybox.git] / networking / pscan.c

diff --git a/networking/pscan.c b/networking/pscan.c
index 5fb6af0b3ba9a7767dfda50bb5f5ae5a113759ee..28005ad57ee2056d858c86f7b5d535563a5509b9 100644 (file)
--- a/networking/pscan.c
+++ b/networking/pscan.c
@@ -3,9 +3,20 @@
  *
  * Copyright 2007 Tito Ragusa <farmatito@tiscali.it>
  *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
+//usage:#define pscan_trivial_usage
+//usage:       "[-cb] [-p MIN_PORT] [-P MAX_PORT] [-t TIMEOUT] [-T MIN_RTT] HOST"
+//usage:#define pscan_full_usage "\n\n"
+//usage:       "Scan a host, print all open ports\n"
+//usage:     "\n       -c      Show closed ports too"
+//usage:     "\n       -b      Show blocked ports too"
+//usage:     "\n       -p      Scan from this port (default 1)"
+//usage:     "\n       -P      Scan up to this port (default 1024)"
+//usage:     "\n       -t      Timeout (default 5000 ms)"
+//usage:     "\n       -T      Minimum rtt (default 5 ms, increase for congested hosts)"
+
 #include "libbb.h"
 
 /* debugging */
@@ -76,7 +87,7 @@ int pscan_main(int argc UNUSED_PARAM, char **argv)
                DMSG("rtt %u", rtt_4);
 
                /* The SOCK_STREAM socket type is implemented on the TCP/IP protocol. */
-               set_nport(lsap, htons(port));
+               set_nport(&lsap->u.sa, htons(port));
                s = xsocket(lsap->u.sa.sa_family, SOCK_STREAM, 0);
                /* We need unblocking socket so we don't need to wait for ETIMEOUT. */
                /* Nonblocking connect typically "fails" with errno == EINPROGRESS */