Callback that finds an issuer certificate for x.
Declared in <openssl/x509_vfy.h>
typedef int(* X509_STORE_CTX_get_issuer_fn)(X509**, X509_STORE_CTX*, X509*);1 on success, or 0 on failure.
| Name | Description |
|---|---|
| issuer | Receives the issuer certificate (typically with an incremented reference). |
| ctx | Store context providing lookup state. |
| x | Certificate whose issuer is sought. |