> grep "#define SSL_OP_.*" /usr/include/openssl/ssl.h

#define SSL_OP_MICROSOFT_SESS_ID_BUG                    0x00000001L
#define SSL_OP_NETSCAPE_CHALLENGE_BUG                   0x00000002L
#define SSL_OP_LEGACY_SERVER_CONNECT                    0x00000004L
#define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG         0x00000008L
#define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG              0x00000010L
#define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER               0x00000020L
...