diff options
Diffstat (limited to 'src/date.c')
| -rw-r--r-- | src/date.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/src/date.c b/src/date.c index 0806c6713..e97ef43d7 100644 --- a/src/date.c +++ b/src/date.c @@ -42,6 +42,8 @@ #include <stdio.h> #include <getopt.h> #include <sys/types.h> + +#include "version.h" #include "system.h" #ifdef TM_IN_SYS_TIME @@ -80,12 +82,20 @@ static void usage (); /* The name this program was run with, for error messages. */ char *program_name; +/* If non-zero, display usage information and exit. */ +static int show_help; + +/* If non-zero, print the version on standard error. */ +static int show_version; + static struct option const long_options[] = { {"date", required_argument, NULL, 'd'}, + {"help", no_argument, &show_help, 1}, {"set", required_argument, NULL, 's'}, - {"universal", no_argument, NULL, 'u'}, {"uct", no_argument, NULL, 'u'}, + {"universal", no_argument, NULL, 'u'}, + {"version", no_argument, &show_version, 1}, {NULL, 0, NULL, 0} }; @@ -106,6 +116,8 @@ main (argc, argv) != EOF) switch (optc) { + case 0: + break; case 'd': datestr = optarg; break; @@ -120,6 +132,15 @@ main (argc, argv) usage (); } + if (show_version) + { + printf ("%s\n", version_string); + exit (0); + } + + if (show_help) + usage (); + if (argc - optind > 1) usage (); @@ -192,7 +213,9 @@ static void usage () { fprintf (stderr, "\ -Usage: %s [-u] [-d datestr] [-s datestr] [+FORMAT] [MMDDhhmm[[CC]YY][.ss]]\n", +Usage: %s [{--help,--version}] [-u] [-d datestr] [-s datestr]\n\ + [--date datestr] [--set datestr] [--uct] [--universal]\n\ + [+FORMAT] [MMDDhhmm[[CC]YY][.ss]]\n", program_name); exit (1); } |