nc: show help text on bad parameters

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

diff --git a/networking/zcip.c b/networking/zcip.c
index a4da5cbcd3666c6f9f8f89a7ae97c9db81a4f8bd..6fa265ad4d5a81f2c864e9d5c190db452bdcc621 100644 (file)
--- a/networking/zcip.c
+++ b/networking/zcip.c
@@ -6,7 +6,7 @@
  * Copyright (C) 2003 by Arthur van Hoff (avh@strangeberry.com)
  * Copyright (C) 2004 by David Brownell
  *
- * 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.
  */
 
 /*
@@ -77,7 +77,7 @@ enum {
 struct globals {
        struct sockaddr saddr;
        struct ether_addr eth_addr;
-};
+} FIX_ALIASING;
 #define G (*(struct globals*)&bb_common_bufsiz1)
 #define saddr    (G.saddr   )
 #define eth_addr (G.eth_addr)
@@ -160,13 +160,13 @@ static int run(char *argv[3], const char *param, struct in_addr *ip)
        }
        bb_info_msg(fmt, argv[2], argv[0], addr);
 
-       status = wait4pid(spawn(argv + 1));
+       status = spawn_and_wait(argv + 1);
        if (status < 0) {
                bb_perror_msg("%s %s %s" + 3, argv[2], argv[0]);
                return -errno;
        }
        if (status != 0)
-               bb_error_msg("script %s %s failed, exitcode=%d", argv[1], argv[2], status);
+               bb_error_msg("script %s %s failed, exitcode=%d", argv[1], argv[2], status & 0xff);
        return status;
 }