295 	FILE *f1, *f2;  in diffreg()  local
298 	f1 = f2 = NULL;  in diffreg()
335 		f2 = fopen(_PATH_DEVNULL, "r");  in diffreg()
338 			if ((f2 = opentemp(file2)) == NULL ||  in diffreg()
339 			    fstat(fileno(f2), &stb2) == -1) {  in diffreg()
345 			f2 = stdin;  in diffreg()
347 			f2 = fopen(file2, "r");  in diffreg()
349 	if (f2 == NULL) {  in diffreg()
355 	switch (files_differ(f1, f2, flags)) {  in diffreg()
367 	    (!asciifile(f1) || !asciifile(f2))) {  in diffreg()
373 	prepare(1, f2, stb2.st_size, flags);  in diffreg()
402 	check(f1, f2, flags);  in diffreg()
403 	output(file1, f1, file2, f2, flags);  in diffreg()
412 	if (f2 != NULL)  in diffreg()
413 		fclose(f2);  in diffreg()
424 files_differ(FILE *f1, FILE *f2, int flags)  in files_differ()  argument
438 		j = fread(buf2, 1, sizeof(buf2), f2);  in files_differ()
439 		if ((!i && ferror(f1)) || (!j && ferror(f2)))  in files_differ()
699 check(FILE *f1, FILE *f2, int flags)  in check()  argument
705 	rewind(f2);  in check()
716 			ixnew[j] = ctnew += skipline(f2);  in check()
722 				d = getc(f2);  in check()
749 					} while (isspace(d = getc(f2)));  in check()
756 						d = getc(f2);  in check()
766 						ctnew += skipline(f2);  in check()
776 				if ((c = getc(f1)) != (d = getc(f2))) {  in check()
782 						ctnew += skipline(f2);  in check()
794 		ixnew[j] = ctnew += skipline(f2);  in check()
858 output(char *file1, FILE *f1, char *file2, FILE *f2, int flags)  in output()  argument
863 	rewind(f2);  in output()
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()
905 			dump_context_vec(f1, f2, flags);  in output()
907 			dump_unified_vec(f1, f2, flags);  in output()
963 change(char *file1, FILE *f1, char *file2, FILE *f2, int a, int b, int c, int d,  in change()  argument
989 				line = preadline(fileno(f2),  in change()
1027 				dump_context_vec(f1, f2, *pflags);  in change()
1029 				dump_unified_vec(f1, f2, *pflags);  in change()
1072 	i = fetch(ixnew, c, d, f2, diff_format == D_NORMAL ? '>' : '\0', 0, *pflags);  in change()
1299 dump_context_vec(FILE *f1, FILE *f2, int flags)  in dump_context_vec()  argument
1386 				fetch(ixnew, lowc, d, f2, ' ', 0, flags);  in dump_context_vec()
1388 				fetch(ixnew, lowc, c - 1, f2, ' ', 0, flags);  in dump_context_vec()
1389 				fetch(ixnew, c, d, f2,  in dump_context_vec()
1395 		fetch(ixnew, d + 1, upd, f2, ' ', 0, flags);  in dump_context_vec()
1402 dump_unified_vec(FILE *f1, FILE *f2, int flags)  in dump_unified_vec()  argument
1454 			fetch(ixnew, c, d, f2, '+', 0, flags);  in dump_unified_vec()
1461 			fetch(ixnew, lowc, c - 1, f2, ' ', 0, flags);  in dump_unified_vec()
1462 			fetch(ixnew, c, d, f2, '+', 0, flags);  in dump_unified_vec()
1468 	fetch(ixnew, d + 1, upd, f2, ' ', 0, flags);  in dump_unified_vec()