shithub: util

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usage

--- a/anagrams.c

+++ b/anagrams.c

@@ -124,6 +124,9 @@

 	dict = calloc(1, sizeof(dlist));

+	if (argc < 2)

+		goto USAGE;

+

 	for(i = 1; i < argc; i++){

 		wordsfilename = argv[i];

 		if(argv[i][0] == '-'){

@@ -136,7 +139,8 @@

 			}

 		}else continue;

-		fprint(2, "usage:\n\t%s [-l[ength] minlen] [-c[ommonenglishwords] wordsfile\n", argv[0]);

+USAGE:

+		fprint(2, "usage: %s [-l[ength] minlen] [-c[ommonenglishwords] wordsfile\n", argv[0]);

 		exits("usage");

 	}