293 diffreg(char *file1, char *file2, int flags)  in diffreg()  argument
310 	if (strcmp(file1, "-") == 0 && strcmp(file2, "-") == 0)  in diffreg()
317 			if ((f1 = opentemp(file1)) == NULL ||  in diffreg()
319 				warn("%s", file1);  in diffreg()
323 		} else if (strcmp(file1, "-") == 0)  in diffreg()
326 			f1 = fopen(file1, "r");  in diffreg()
329 		warn("%s", file1);  in diffreg()
403 	output(file1, f1, file2, f2, flags);  in diffreg()
858 output(char *file1, FILE *f1, char *file2, FILE *f2, int flags)  in output()  argument
877 			change(file1, f1, file2, f2, i0, i1, j0, j1, &flags);  in output()
889 			change(file1, f1, file2, f2, i1, i0, j1, j0, &flags);  in output()
893 		change(file1, f1, file2, f2, 1, 0, 1, len[1], &flags);  in output()
963 change(char *file1, FILE *f1, char *file2, FILE *f2, int a, int b, int c, int d,  in change()  argument
999 		diff_output("%s %s %s\n", diffargs, file1, file2);  in change()
1018 			print_header(file1, file2);  in change()
1474 print_header(const char *file1, const char *file2)  in print_header()  argument
1481 		    file1, ctime(&stb1.st_mtime));  in print_header()