diff options
| -rw-r--r-- | wcal.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/wcal.c b/wcal.c index fefc9e3..3293f42 100644 --- a/wcal.c +++ b/wcal.c @@ -109,6 +109,13 @@ parse_isodate(char *optarg, int *y, int *m, int *d) } } +void +usage() +{ + fprintf(stderr, "Usage: wcal [-13yci] [-d YYYY[-MM[-DD]]]\n"); + exit(1); +} + int main(int argc, char *argv[]) { @@ -135,9 +142,12 @@ main(int argc, char *argv[]) case 'y': flagy = 1; break; case 'i': flagi = 1; break; case 'd': parse_isodate(optarg, &y, &m, &d); break; - case '?': exit(1); + case '?': usage(); } + if (argc > optind) + usage(); + long today = ymd2jd(y, m, d); jd2ymdwi(today, &y, &m, &d, &cw, &ci, &cg); |