old edits uncommitted

homepage/cat/cat.c

@@ -33,7 +33,7 @@ error(enum error_type type, char *argv0, char *file_name){
 /* print input to output, returns 0 if successful and 1 if unsuccessful */
 int
 file_copy(FILE *input, FILE *output){
-	char c;
+	int c;
 	while((c = getc(input)) != EOF)
 		if(putc(c, output) == EOF)
 			return 1;
@@ -76,7 +76,7 @@ main(int argc, char *argv[]){
 
 		/* ignore `-u` if still parsing options */
 		}else if(parsing_opts && !strcmp(argv[i], "-u"))
-			continue;
+			setbuf(output, (char *)NULL);
 
 		/* take `-` to mean standard input if still parsing options */
 		else if(parsing_opts && !strcmp(argv[i], "-")){