str2bin
if((len = str2bin(cp, &tmp)) == 0) {
len = str2bin(chapSecret, &cp);
len = str2bin(digest, &cp);
if((len = str2bin(chapSecret, &tmp)) == 0) {
if((len = str2bin(cp, &tmp)) == 0) {
if((len = str2bin(chapSecret, &tmp)) == 0) {
int str2bin(char *str, char **rsp);
l1 = str2bin(op->tgtChapDigest, &d1);
l2 = str2bin(rp, &d2);
int str2bin(char *str, char **rsp);