Author: eadler
Date: Fri Jul 4 22:19:21 2014
New Revision: 268271
URL: http://svnweb.freebsd.org/changeset/base/268271
Log:
units(1): Add 'help' flag
- Add support for --help for compatibility
- Make usage() static
Modified:
head/usr.bin/units/units.1
head/usr.bin/units/units.c
Modified: head/usr.bin/units/units.1
==============================================================================
--- head/usr.bin/units/units.1 Fri Jul 4 21:34:48 2014 (r268270)
+++ head/usr.bin/units/units.1 Fri Jul 4 22:19:21 2014 (r268271)
@@ -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
Modified: head/usr.bin/units/units.c
==============================================================================
--- head/usr.bin/units/units.c Fri Jul 4 21:34:48 2014 (r268270)
+++ head/usr.bin/units/units.c Fri Jul 4 22:19:21 2014 (r268271)
@@ -695,7 +695,7 @@ showanswer(struct unittype * have, struc
}
-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();
}
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