Change return type of the new accessors

The new accessors SSL_get_client_random, SSL_get_server_random and
SSL_SESSION_get_master_key should return a size_t to match the type of the
|outlen| parameter.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

doc/ssl/SSL_get_client_random.pod

@@ -8,9 +8,9 @@ SSL_get_client_random, SSL_get_server_random, SSL_SESSION_get_master_key - retri
 
  #include <openssl/ssl.h>
 
- int SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen);
- int SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen);
- int SSL_SESSION_get_master_key(const SSL_SESSION *session, unsigned char *out, size_t outlen);
+ size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen);
+ size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen);
+ size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, unsigned char *out, size_t outlen);
 
 =head1 DESCRIPTION
 
@@ -18,8 +18,8 @@ SSL_get_client_random() extracts the random value sent from the client
 to the server during the initial SSL/TLS handshake.  It copies as many
 bytes as it can of this value into the buffer provided in B<out>,
 which must have at least B<outlen> bytes available. It returns the
-total number of bytes that were actually copied.  If B<outlen> is less
-than zero, SSL_get_client_random() copies nothing, and returns the
+total number of bytes that were actually copied.  If B<outlen> is
+zero, SSL_get_client_random() copies nothing, and returns the
 total size of the client_random value.
 
 SSL_get_server_random() behaves the same, but extracts the random value
@@ -63,10 +63,10 @@ values based on their view of the current time.
 
 =head1 RETURN VALUES
 
-If B<outlen> is at least 0, these functions return the number of bytes
+If B<outlen> is greater than 0, these functions return the number of bytes
 actually copied, which will be less than or equal to B<outlen>.
 
-If B<outlen> is less than 0, these functions return the maximum number
+If B<outlen> is 0, these functions return the maximum number
 of bytes they would copy--that is, the length of the underlying field.
 
 =head1 SEE ALSO

include/openssl/ssl.h

@@ -1652,12 +1652,12 @@ void SSL_set_state(SSL *ssl, int state);
 void SSL_set_verify_result(SSL *ssl, long v);
 __owur long SSL_get_verify_result(const SSL *ssl);
 
-__owur int SSL_get_client_random(const SSL *ssl, unsigned char *out,
-                                 size_t outlen);
-__owur int SSL_get_server_random(const SSL *ssl, unsigned char *out,
-                                 size_t outlen);
-__owur int SSL_SESSION_get_master_key(const SSL_SESSION *ssl,
-                                      unsigned char *out, size_t outlen);
+__owur size_t SSL_get_client_random(const SSL *ssl, unsigned char *out,
+                                    size_t outlen);
+__owur size_t SSL_get_server_random(const SSL *ssl, unsigned char *out,
+                                    size_t outlen);
+__owur size_t SSL_SESSION_get_master_key(const SSL_SESSION *ssl,
+                                         unsigned char *out, size_t outlen);
 
 __owur int SSL_set_ex_data(SSL *ssl, int idx, void *data);
 void *SSL_get_ex_data(const SSL *ssl, int idx);

ssl/ssl_lib.c

@@ -2897,39 +2897,39 @@ long SSL_get_verify_result(const SSL *ssl)
     return (ssl->verify_result);
 }
 
-int SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
+size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
 {
     if (outlen == 0)
         return sizeof(ssl->s3->client_random);
     if (outlen > sizeof(ssl->s3->client_random))
         outlen = sizeof(ssl->s3->client_random);
     memcpy(out, ssl->s3->client_random, outlen);
-    return (outlen);
+    return outlen;
 }
 
-int SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
+size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
 {
     if (outlen == 0)
         return sizeof(ssl->s3->server_random);
     if (outlen > sizeof(ssl->s3->server_random))
         outlen = sizeof(ssl->s3->server_random);
     memcpy(out, ssl->s3->server_random, outlen);
-    return (outlen);
+    return outlen;
 }
 
-int SSL_SESSION_get_master_key(const SSL_SESSION *session,
+size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
                                unsigned char *out, size_t outlen)
 {
-    if (outlen == 0)
-        return session->master_key_length;
     if (session->master_key_length < 0) {
         /* Should never happen */
         return 0;
     }
+    if (outlen == 0)
+        return session->master_key_length;
     if (outlen > (size_t)session->master_key_length)
         outlen = session->master_key_length;
     memcpy(out, session->master_key, outlen);
-    return (outlen);
+    return outlen;
 }
 
 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,

util/ssleay.num

@@ -399,3 +399,7 @@ SSL_use_certificate_chain_file          433	EXIST::FUNCTION:STDIO
 TLS_server_method                       434	EXIST::FUNCTION:
 TLS_method                              435	EXIST::FUNCTION:
 TLS_client_method                       436	EXIST::FUNCTION:
+SSL_get_server_random                   437	EXIST::FUNCTION:
+SSL_get_client_ciphers                  438	EXIST::FUNCTION:
+SSL_get_client_random                   439	EXIST::FUNCTION:
+SSL_SESSION_get_master_key              440	EXIST::FUNCTION: