X509_STORE_CTX_get_by_subject
if (!X509_STORE_CTX_get_by_subject(vs, type, name, obj)) {
int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
#define X509_STORE_get_by_subject X509_STORE_CTX_get_by_subject