278 	diff_rev1 = diff_rev2 = NULL;  in cvs_diff()
422 		diff_rev2 = NULL;  in cvs_diff_local()
425 		diff_rev2 = rcs_translate_tag(rev2, cf->file_rcs);  in cvs_diff_local()
426 		if (diff_rev2 == NULL && cvs_cmdop == CVS_OP_DIFF) {  in cvs_diff_local()
432 				diff_rev2 = NULL;  in cvs_diff_local()
441 		} else if (diff_rev2 == NULL && cvs_cmdop == CVS_OP_RDIFF &&  in cvs_diff_local()
444 			if ((diff_rev2 = rcsnum_parse(rev2)) == NULL)  in cvs_diff_local()
446 			free(diff_rev2);  in cvs_diff_local()
448 			diff_rev2 = cf->file_rcs->rf_head;  in cvs_diff_local()
452 		diff_rev2 = cf->file_rcs->rf_head;  in cvs_diff_local()
454 		diff_rev2 = NULL;  in cvs_diff_local()
456 	if (diff_rev1 != NULL && diff_rev2 != NULL &&  in cvs_diff_local()
457 	    rcsnum_cmp(diff_rev1, diff_rev2, 0) == 0)  in cvs_diff_local()
463 			if (diff_rev2 == NULL &&  in cvs_diff_local()
469 		if (diff_rev1 == NULL && diff_rev2 == NULL)  in cvs_diff_local()
495 	if (diff_rev2 != NULL) {  in cvs_diff_local()
497 			(void)rcsnum_tostr(diff_rev2, rbuf, sizeof(rbuf));  in cvs_diff_local()
501 		tv2[0].tv_sec = rcs_rev_getdate(cf->file_rcs, diff_rev2);  in cvs_diff_local()
506 		fd2 = rcs_rev_write_stmp(cf->file_rcs, diff_rev2, p2, 0);  in cvs_diff_local()
545 			if (rev2 != NULL && diff_rev2 != NULL) {  in cvs_diff_local()
546 				(void)rcsnum_tostr(diff_rev2, rbuf,  in cvs_diff_local()
552 		if (diff_rev2 == NULL)  in cvs_diff_local()
578 		if (diff_rev2 == NULL) {  in cvs_diff_local()
581 			(void)rcsnum_tostr(diff_rev2 != NULL ? diff_rev2 :  in cvs_diff_local()
617 	if (diff_rev2 != NULL &&  in cvs_diff_local()
618 	    (cf->file_rcs == NULL || diff_rev2 != cf->file_rcs->rf_head))  in cvs_diff_local()
619 		free(diff_rev2);  in cvs_diff_local()
620 	diff_rev2 = NULL;  in cvs_diff_local()