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| author | Thomas Habets <thomas@habets.pp.se> | 2004-08-29 18:44:15 +0000 |
|---|---|---|
| committer | Thomas Habets <thomas@habets.pp.se> | 2004-08-29 18:44:15 +0000 |
| commit | 4bdc0101b9789324258dc407fb7a779db11c45e6 (patch) | |
| tree | 7dc771f2e678dea92a12c1cc691819d0d7598adb | |
| parent | 61548aff79e61cb678ea80971a2281ffb2cb4468 (diff) | |
| download | arping-4bdc0101b9789324258dc407fb7a779db11c45e6.tar.gz | |
.
| -rw-r--r-- | Makefile | 5 | ||||
| -rw-r--r-- | arping-2/arping.c | 8 |
2 files changed, 8 insertions, 5 deletions
@@ -1,4 +1,4 @@ -# $Id: Makefile 1063 2004-02-02 00:37:34Z marvin $ +# $Id: Makefile 1124 2004-08-29 18:44:15Z marvin $ TARGETS=arping CD=cd @@ -102,7 +102,7 @@ O_arping2=arping-2/arping.c arping2: arping-2/arping arping-2/arping: $(O_arping2) # $(CC) `libnet-config --libs --defines --cflags` -o arping arping-2/arping.c -lnet -lpcap - $(CC) -o arping arping-2/arping.c -lnet -lpcap $(EXTRA_LIBS) + $(CC) -g -o arping arping-2/arping.c -lnet -lpcap $(EXTRA_LIBS) clean: rm -f *.o $(TARGETS) @@ -124,7 +124,6 @@ dist: ) test: arping2 @echo Testing with destination host $(HOST) and MAC $(MAC) - # Easy ones @$(SUDO) ./arping -c 1 -q $(HOST) || echo fail: arping host @$(SUDO) ./arping -c 1 -q $(shell $(SUDO) ./arping -c 1 -r $(HOST)) \ diff --git a/arping-2/arping.c b/arping-2/arping.c index 1a66cbf..234582d 100644 --- a/arping-2/arping.c +++ b/arping-2/arping.c @@ -12,7 +12,7 @@ * * Also finds out IP of specified MAC * - * $Id: arping.c 1123 2004-08-25 13:26:02Z marvin $ + * $Id: arping.c 1124 2004-08-29 18:44:15Z marvin $ */ /* * Copyright (C) 2000-2002 Thomas Habets <thomas@habets.pp.se> @@ -964,7 +964,7 @@ int main(int argc, char **argv) } } - parm = argv[optind]; + parm = (optind < argc) ? argv[optind] : NULL; /* * Handle dstip_given instead of ip address after parms (-B really) @@ -984,6 +984,10 @@ int main(int argc, char **argv) } } + if (!parm) { + usage(1); + } + /* * */ |