306 	FILE *f1, *f2;  in diffreg()  local
311 	f1 = f2 = NULL;  in diffreg()
344 	f2 = fdopen(fd2, "r");  in diffreg()
345 	if (f2 == NULL) {  in diffreg()
360 	switch (files_differ(f1, f2)) {  in diffreg()
371 	    (!asciifile(f1) || !asciifile(f2))) {  in diffreg()
377 	prepare(1, f2, stb2.st_size, flags);  in diffreg()
406 	check(f1, f2, flags);  in diffreg()
407 	output(f1, f2, flags);  in diffreg()
416 	if (f2 != NULL)  in diffreg()
417 		fclose(f2);  in diffreg()
428 files_differ(FILE *f1, FILE *f2)  in files_differ()  argument
437 		j = fread(buf2, 1, sizeof(buf2), f2);  in files_differ()
438 		if ((!i && ferror(f1)) || (!j && ferror(f2)))  in files_differ()
650 check(FILE *f1, FILE *f2, int flags)  in check()  argument
656 	rewind(f2);  in check()
667 			ixnew[j] = ctnew += skipline(f2);  in check()
673 				d = getc(f2);  in check()
696 					} while (isspace(d = getc(f2)));  in check()
703 						d = getc(f2);  in check()
713 						ctnew += skipline(f2);  in check()
723 				if ((c = getc(f1)) != (d = getc(f2))) {  in check()
729 						ctnew += skipline(f2);  in check()
741 		ixnew[j] = ctnew += skipline(f2);  in check()
805 output(FILE *f1, FILE *f2, int flags)  in output()  argument
810 	rewind(f2);  in output()
823 		change(f1, f2, i0, i1, j0, j1, flags);  in output()
826 		change(f1, f2, 1, 0, 1, len[1], flags);  in output()
838 			dump_context_vec(f1, f2, flags);  in output()
840 			dump_unified_vec(f1, f2, flags);  in output()
967 change(FILE *f1, FILE *f2, int a, int b, int c, int d, int flags)  in change()  argument
991 				line = preadline(fileno(f2),  in change()
1029 				dump_context_vec(f1, f2, flags);  in change()
1031 				dump_unified_vec(f1, f2, flags);  in change()
1068 	fetch(ixnew, c, d, f2, diff_format == D_NORMAL ? '>' : '\0', 0, flags);  in change()
1270 dump_context_vec(FILE *f1, FILE *f2, int flags)  in dump_context_vec()  argument
1357 				fetch(ixnew, lowc, d, f2, ' ', 0, flags);  in dump_context_vec()
1359 				fetch(ixnew, lowc, c - 1, f2, ' ', 0, flags);  in dump_context_vec()
1360 				fetch(ixnew, c, d, f2,  in dump_context_vec()
1366 		fetch(ixnew, d + 1, upd, f2, ' ', 0, flags);  in dump_context_vec()
1373 dump_unified_vec(FILE *f1, FILE *f2, int flags)  in dump_unified_vec()  argument
1425 			fetch(ixnew, c, d, f2, '+', 0, flags);  in dump_unified_vec()
1432 			fetch(ixnew, lowc, c - 1, f2, ' ', 0, flags);  in dump_unified_vec()
1433 			fetch(ixnew, c, d, f2, '+', 0, flags);  in dump_unified_vec()
1439 	fetch(ixnew, d + 1, upd, f2, ' ', 0, flags);  in dump_unified_vec()