Hi there,

When I try to run this snippet, I get these error on Kali Linux Terminal.

764.c:643:24: error: ‘SSL2_MAX_CONNECTION_ID_LENGTH’ undeclared here (not in a function); did you mean ‘SSL_MAX_SSL_SESSION_ID_LENGTH’?
unsigned char conn_id[SSL2_MAX_CONNECTION_ID_LENGTH];
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SSL_MAX_SSL_SESSION_ID_LENGTH
764.c:651:2: error: unknown type name ‘RC4_KEY’
RC4_KEY* rc4_read_key;
^~~~~~~
764.c:652:2: error: unknown type name ‘RC4_KEY’
RC4_KEY* rc4_write_key;
^~~~~~~
764.c: In function ‘read_ssl_packet’:
764.c:844:7: error: ‘MD5_DIGEST_LENGTH’ undeclared (first use in this function); did you mean ‘SHA_DIGEST_LENGTH’?
if (MD5_DIGEST_LENGTH + padding >= rec_len) {
^~~~~~~~~~~~~~~~~
SHA_DIGEST_LENGTH
764.c:844:7: note: each undeclared identifier is reported only once for each function it appears in
764.c:845:19: error: ‘SSL2_MT_ERROR’ undeclared (first use in this function); did you mean ‘SSL_METHOD’?
if ((buf[0] == SSL2_MT_ERROR) && (rec_len == 3)) {
^~~~~~~~~~~~~
SSL_METHOD
764.c:856:3: warning: implicit declaration of function ‘RC4’ [-Wimplicit-function-declaration]
RC4(ssl->rc4_read_key, rec_len, buf, buf);
^~~
764.c: In function ‘send_ssl_packet’:
764.c:882:2: error: unknown type name ‘MD5_CTX’; did you mean ‘PEM_CTX’?
MD5_CTX ctx;
^~~~~~~
PEM_CTX
764.c:887:23: error: ‘MD5_DIGEST_LENGTH’ undeclared (first use in this function); did you mean ‘SHA_DIGEST_LENGTH’?
tot_len = rec_len + MD5_DIGEST_LENGTH; /* RC4 needs no padding /
^~~~~~~~~~~~~~~~~
SHA_DIGEST_LENGTH
764.c:905:3: warning: implicit declaration of function ‘MD5_Init’; did you mean ‘HMAC_Init’? [-Wimplicit-function-declaration]
MD5_Init(&ctx);
^~~~~~~~
HMAC_Init
764.c:906:3: warning: implicit declaration of function ‘MD5_Update’; did you mean ‘HMAC_Update’? [-Wimplicit-function-declaration]
MD5_Update(&ctx, ssl->write_key, RC4_KEY_LENGTH);
^~~~~~~~~~
HMAC_Update
764.c:909:3: warning: implicit declaration of function ‘MD5_Final’; did you mean ‘HMAC_Final’? [-Wimplicit-function-declaration]
MD5_Final(p, &ctx);
^~~~~~~~~
HMAC_Final
764.c: In function ‘get_server_hello’:
764.c:977:16: error: ‘SSL2_MT_SERVER_HELLO’ undeclared (first use in this function); did you mean ‘SSL3_MT_SERVER_HELLO’?
if ((p++) != SSL2_MT_SERVER_HELLO) {
^~~~~~~~~~~~~~~~~~~~
SSL3_MT_SERVER_HELLO
764.c:1009:26: warning: passing argument 2 of ‘d2i_X509’ from incompatible pointer type [-Wincompatible-pointer-types]
ssl->x509=d2i_X509(NULL,&p,(long)cert_length);
^
In file included from /usr/include/openssl/objects.h:916:0,
from /usr/include/openssl/evp.h:27,
from /usr/include/openssl/x509.h:23,
from /usr/include/openssl/ssl.h:50,
from 764.c:20:
/usr/include/openssl/x509.h:540:1: note: expected ‘const unsigned char *’ but argument is of type ‘unsigned char ’
DECLARE_ASN1_FUNCTIONS(X509)
^
764.c: In function ‘send_client_master_key’:
764.c:1069:10: error: dereferencing pointer to incomplete type ‘EVP_PKEY {aka struct evp_pkey_st}’
if (pkey->type != EVP_PKEY_RSA) {
^~
764.c: In function ‘generate_key_material’:
764.c:1106:2: error: unknown type name ‘MD5_CTX’; did you mean ‘PEM_CTX’?
MD5_CTX ctx;
^~~~~~~
PEM_CTX
764.c:1111:42: error: ‘MD5_DIGEST_LENGTH’ undeclared (first use in this function); did you mean ‘SHA_DIGEST_LENGTH’?
for (i=0; i<RC4_KEY_MATERIAL_LENGTH; i+=MD5_DIGEST_LENGTH) {
^~~~~~~~~~~~~~~~~
SHA_DIGEST_LENGTH
764.c: In function ‘generate_session_keys’:
764.c:1127:23: error: ‘RC4_KEY’ undeclared (first use in this function); did you mean ‘EC_KEY’?
ssl->rc4_read_key = (RC4_KEY) malloc(sizeof(RC4_KEY));
^~~~~~~
EC_KEY
764.c:1127:31: error: expected expression before ‘)’ token
ssl->rc4_read_key = (RC4_KEY) malloc(sizeof(RC4_KEY));
^
764.c:1128:2: warning: implicit declaration of function ‘RC4_set_key’; did you mean ‘RSA_set0_key’? [-Wimplicit-function-declaration]
RC4_set_key(ssl->rc4_read_key, RC4_KEY_LENGTH, ssl->read_key);
^~~~~~~~~~~
RSA_set0_key
764.c:1131:32: error: expected expression before ‘)’ token
ssl->rc4_write_key = (RC4_KEY) malloc(sizeof(RC4_KEY));
^
764.c: In function ‘get_server_verify’:
764.c:1146:16: error: ‘SSL2_MT_SERVER_VERIFY’ undeclared (first use in this function); did you mean ‘SSL3_MT_SERVER_HELLO’?
if (buf[0] != SSL2_MT_SERVER_VERIFY) {
^~~~~~~~~~~~~~~~~~~~~
SSL3_MT_SERVER_HELLO
764.c: In function ‘send_client_finished’:
764.c:1158:11: error: ‘SSL2_MT_CLIENT_FINISHED’ undeclared (first use in this function); did you mean ‘SSL3_MT_FINISHED’?
buf[0] = SSL2_MT_CLIENT_FINISHED;
^~~~~~~~~~~~~~~~~~~~~~~
SSL3_MT_FINISHED
764.c: In function ‘get_server_finished’:
764.c:1171:16: error: ‘SSL2_MT_SERVER_FINISHED’ undeclared (first use in this function); did you mean ‘SSL3_MT_SERVER_DONE’?
if (buf[0] != SSL2_MT_SERVER_FINISHED) {
^~~~~~~~~~~~~~~~~~~~~~~
SSL3_MT_SERVER_DONE

I put the url like http://10..../ . I got 405 error. Which url path should I put there?