utils-std

commit: 195537341000ff43573d7722d18cd2eea55c892a
parent 8749a3c6ddc198df4b332f35be033ef80336b2ab
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Fri, 20 Sep 2024 17:05:22 +0200

cmd/tr: handle unknown option

Diffstat:
M
cmd/tr.c
14
++++++++++++++

1 file changed, 14 insertions(+), 0 deletions(-)
diff --git a/cmd/tr.c b/cmd/tr.c
@@ -66,6 +66,8 @@ int translate[NCHARS] = {
 STR s1 = {STRING1, NORMAL, 0, OOBCH, {0, OOBCH}, NULL, NULL};
 STR s2 = {STRING2, NORMAL, 0, OOBCH, {0, OOBCH}, NULL, NULL};
 
+const char *argv0 = "tr";
+
 static void setup(int *, char *, STR *, int);
 static void usage(void);
 
@@ -77,6 +79,7 @@ main(int argc, char *argv[])
 
 	cflag = dflag = sflag = 0;
 	while((ch = getopt(argc, argv, "Ccds")) != -1)
+	{
 		switch(ch)
 		{
 		case 'C':
@@ -89,9 +92,20 @@ main(int argc, char *argv[])
 		case 's':
 			sflag = 1;
 			break;
+		case ':':
+			fprintf(stderr, "%s: error: Option '-%c' requires an operand\n", argv0, optopt);
+			usage();
+			return 1;
+		case '?':
+			fprintf(stderr, "%s: error: Unhandled option '-%c'\n", argv0, optopt);
+			usage();
+			return 1;
 		default:
+			fprintf(stderr, "%s: error: Unhandled getopt case '%c'\n", argv0, ch);
 			usage();
+			abort();
 		}
+	}
 	argc -= optind;
 	argv += optind;