csv

commit 2f44c7e5c28a3e5b14c0367c95b0a33ffd6cc277
parent f4971227e173e33192e78981170dce5af59ae180
Author: aabacchus <ben@bvnf.space>
Date:   Sat,  2 Oct 2021 16:43:46 +0100

add -h message and make clean

Diffstat:
M
Makefile
 | 
5
+++++
M
csv.c
 | 
5
++++-

2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
@@ -3,3 +3,8 @@ XCFLAGS = $(CFLAGS) -Wall -Wextra -Wpedantic -Og -ggdb3 -D_XOPEN_SOURCE=600
 
 csv: csv.c
 	$(CC) $(XCFLAGS) -o $@ $<
+
+clean:
+	rm -f csv
+
+.PHONY: clean
diff --git a/csv.c b/csv.c
@@ -111,14 +111,17 @@ int
 main(int argc, char **argv) {
 	int c;
 	int flag_H = 0;
-	while ((c = getopt(argc, argv, "H")) != -1) {
+	while ((c = getopt(argc, argv, "Hh")) != -1) {
 		switch (c) {
 			case 'H':
 				flag_H = 1;
 				break;
+			case 'h':
+				goto usage;
 		}
 	}
 	if (argc - optind > 1) {
+usage:
 		fprintf(stderr,
 			"usage: %s [-H] [file]\n  if no filename given, data is \
 read from stdin\n"