| Pos | Name | Type | Size | Offset |
| 0 | name | char const* | 8 | 0 |
| 1 | new_item | int(*)(X509_LOOKUP*) | 8 | 8 |
| 2 | free | void(*)(X509_LOOKUP*) | 8 | 16 |
| 3 | init | int(*)(X509_LOOKUP*) | 8 | 24 |
| 4 | shutdown | int(*)(X509_LOOKUP*) | 8 | 32 |
| 5 | ctrl | int(*)(X509_LOOKUP*, int, char const*, long, char**) | 8 | 40 |
| 6 | get_by_subject | int(*)(X509_LOOKUP*, int, X509_NAME*, X509_OBJECT*) | 8 | 48 |
| 7 | get_by_issuer_serial | int(*)(X509_LOOKUP*, int, X509_NAME*, ASN1_INTEGER*, X509_OBJECT*) | 8 | 56 |
| 8 | get_by_fingerprint | int(*)(X509_LOOKUP*, int, unsigned char*, int, X509_OBJECT*) | 8 | 64 |
| 9 | get_by_alias | int(*)(X509_LOOKUP*, int, char*, int, X509_OBJECT*) | 8 | 72 |
| Offset | Contents | Type |
| 0 | .name | char const* |
| 8 | .new_item | int(*)(X509_LOOKUP*) |
| 16 | .free | void(*)(X509_LOOKUP*) |
| 24 | .init | int(*)(X509_LOOKUP*) |
| 32 | .shutdown | int(*)(X509_LOOKUP*) |
| 40 | .ctrl | int(*)(X509_LOOKUP*, int, char const*, long, char**) |
| 48 | .get_by_subject | int(*)(X509_LOOKUP*, int, X509_NAME*, X509_OBJECT*) |
| 56 | .get_by_issuer_serial | int(*)(X509_LOOKUP*, int, X509_NAME*, ASN1_INTEGER*, X509_OBJECT*) |
| 64 | .get_by_fingerprint | int(*)(X509_LOOKUP*, int, unsigned char*, int, X509_OBJECT*) |
| 72 | .get_by_alias | int(*)(X509_LOOKUP*, int, char*, int, X509_OBJECT*) |