rcs_getrev
if ((b2 = rcs_getrev(pb->file, pb->frev)) == NULL) {
if ((bp = rcs_getrev(file, rev)) == NULL) {
if ((bp = rcs_getrev(rfp, frev)) == NULL) {
if ((b2 = rcs_getrev(rf, rev1)) == NULL)
if ((b3 = rcs_getrev(rf, rev2)) == NULL)
if ((prevbuf = rcs_getrev(rf, prevrdp->rd_num)) == NULL)
if ((nextbuf = rcs_getrev(rf, nextrdp->rd_num)) == NULL)
BUF *rcs_getrev(RCSFILE *, RCSNUM *);
if ((b1 = rcs_getrev(file, rev)) == NULL) {
if ((b1 = rcs_getrev(file, rev)) == NULL) {
if ((b1 = rcs_getrev(file, rev1)) == NULL) {
if ((b2 = rcs_getrev(file, rev2)) == NULL) {