diff options
| -rw-r--r-- | ethtool.c | 23 |
1 files changed, 16 insertions, 7 deletions
@@ -197,15 +197,24 @@ static struct option { static void show_usage(int badarg) { int i; - fprintf(stderr, PACKAGE " version " VERSION "\n"); - fprintf(stderr, + if (badarg != 0) { + fprintf(stderr, + "ethtool: bad command line argument(s)\n" + "For more information run ethtool -h\n" + ); + } + else { + /* ethtool -h */ + fprintf(stdout, PACKAGE " version " VERSION "\n"); + fprintf(stdout, "Usage:\n" "ethtool DEVNAME\tDisplay standard information about device\n"); - for (i = 0; args[i].srt; i++) { - fprintf(stderr, " ethtool %s|%s DEVNAME\t%s\n%s", - args[i].srt, args[i].lng, - args[i].help, - args[i].opthelp ? args[i].opthelp : ""); + for (i = 0; args[i].srt; i++) { + fprintf(stdout, " ethtool %s|%s DEVNAME\t%s\n%s", + args[i].srt, args[i].lng, + args[i].help, + args[i].opthelp ? args[i].opthelp : ""); + } } exit(badarg); } |