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author | eadler <eadler@FreeBSD.org> | 2014-07-04 22:19:21 +0000 |
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committer | eadler <eadler@FreeBSD.org> | 2014-07-04 22:19:21 +0000 |
commit | 6e29f84795d4884ec6d9cfe50f45177baa99f7df (patch) | |
tree | fe2c53522daf06e2ca338b764db7423c60668997 /usr.bin | |
parent | 1058eea813dd279b68c43fe4b9961f547fc431a8 (diff) | |
download | FreeBSD-src-6e29f84795d4884ec6d9cfe50f45177baa99f7df.zip FreeBSD-src-6e29f84795d4884ec6d9cfe50f45177baa99f7df.tar.gz |
units(1): Add 'help' flag
- Add support for --help for compatibility
- Make usage() static
Diffstat (limited to 'usr.bin')
-rw-r--r-- | usr.bin/units/units.1 | 2 | ||||
-rw-r--r-- | usr.bin/units/units.c | 8 |
2 files changed, 8 insertions, 2 deletions
diff --git a/usr.bin/units/units.1 b/usr.bin/units/units.1 index c5a82ca..7e88efb 100644 --- a/usr.bin/units/units.1 +++ b/usr.bin/units/units.1 @@ -13,6 +13,8 @@ .Sh OPTIONS The following options are available: .Bl -tag -width indent +.It Fl h No , Fl -help +Show an overview of options .It Fl f Ar filename No , Fl -file Ar filename Specify the name of the units data file to load. .It Fl q No , Fl -quiet diff --git a/usr.bin/units/units.c b/usr.bin/units/units.c index a0e3772..baf2a59 100644 --- a/usr.bin/units/units.c +++ b/usr.bin/units/units.c @@ -695,7 +695,7 @@ showanswer(struct unittype * have, struct unittype * want) } -void +static void usage(void) { fprintf(stderr, @@ -704,6 +704,7 @@ usage(void) } static struct option longopts[] = { + {"help", no_argument, NULL, 'h'}, {"file", required_argument, NULL, 'f'}, {"quiet", no_argument, NULL, 'q'}, {"verbose", no_argument, NULL, 'v'}, @@ -728,7 +729,7 @@ main(int argc, char **argv) quiet = false; readfile = false; - while ((optchar = getopt_long(argc, argv, "+f:qvUV", longopts, NULL)) != -1) { + while ((optchar = getopt_long(argc, argv, "+hf:qvUV", longopts, NULL)) != -1) { switch (optchar) { case 'f': readfile = true; @@ -753,6 +754,9 @@ main(int argc, char **argv) printf("Units data file not found"); exit(0); break; + case 'h': + /* FALLTHROUGH */ + default: usage(); } |