diff options
Diffstat (limited to 'src/ipcalc.c')
| -rw-r--r-- | src/ipcalc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/ipcalc.c b/src/ipcalc.c index 56b5ae87..ad279587 100644 --- a/src/ipcalc.c +++ b/src/ipcalc.c @@ -10,7 +10,7 @@ * * Authors: * Erik Troan <ewt@redhat.com> - * Preston Brown <pbrown@redhat.com + * Preston Brown <pbrown@redhat.com> */ @@ -290,6 +290,11 @@ int main(int argc, const char **argv) { } poptFreeContext(optCon); + + if (!(showNetmask|showPrefix|showBroadcast|showNetwork|showHostname)) { + poptPrintHelp(optCon, stderr, 0); + return 1; + } /* we know what we want to display now, so display it. */ |