Introduce macro RECORD_LAYER_setup_comp_buffer

Reviewed-by: NRichard Levitte <levitte@openssl.org>

ssl/record/rec_layer.h

@@ -164,6 +164,7 @@ typedef struct record_layer_st {
 #define RECORD_LAYER_get_wbuf(rl)               (&(rl)->wbuf)
 #define RECORD_LAYER_get_rrec(rl)               (&(rl)->rrec)
 #define RECORD_LAYER_get_wrec(rl)               (&(rl)->wrec)
+#define RECORD_LAYER_setup_comp_buffer(rl)      (SSL3_RECORD_setup(&(rl)->rrec))
 
 void RECORD_LAYER_init(RECORD_LAYER *rl, SSL *s);
 void RECORD_LAYER_clear(RECORD_LAYER *rl);

ssl/record/ssl3_record.c

@@ -143,10 +143,11 @@ void SSL3_RECORD_release(SSL3_RECORD *r)
     r->comp = NULL;
 }
 
-int SSL3_RECORD_setup(SSL3_RECORD *r, size_t len)
+int SSL3_RECORD_setup(SSL3_RECORD *r)
 {
     if (r->comp == NULL)
-        r->comp = (unsigned char *) OPENSSL_malloc(len);
+        r->comp = (unsigned char *)
+            OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH);
     if (r->comp == NULL)
         return 0;
     return 1;

ssl/record/ssl3_record.h

@@ -158,7 +158,7 @@ typedef struct ssl3_record_st {
 
 void SSL3_RECORD_clear(SSL3_RECORD *r);
 void SSL3_RECORD_release(SSL3_RECORD *r);
-int SSL3_RECORD_setup(SSL3_RECORD *r, size_t len);
+int SSL3_RECORD_setup(SSL3_RECORD *r);
 void SSL3_RECORD_set_seq_num(SSL3_RECORD *r, const unsigned char *seq_num);
 int ssl3_get_record(SSL *s);
 __owur int ssl3_do_compress(SSL *ssl);

ssl/s3_enc.c

@@ -270,8 +270,7 @@ int ssl3_change_cipher_state(SSL *s, int which)
                        SSL_R_COMPRESSION_LIBRARY_ERROR);
                 goto err2;
             }
-            if(!SSL3_RECORD_setup(RECORD_LAYER_get_rrec(&s->rlayer),
-                SSL3_RT_MAX_PLAIN_LENGTH))
+            if(!RECORD_LAYER_setup_comp_buffer(&s->rlayer))
                 goto err;
         }
 #endif

ssl/t1_enc.c

@@ -396,8 +396,7 @@ int tls1_change_cipher_state(SSL *s, int which)
                        SSL_R_COMPRESSION_LIBRARY_ERROR);
                 goto err2;
             }
-            if (SSL3_RECORD_setup(RECORD_LAYER_get_rrec(&s->rlayer),
-                SSL3_RT_MAX_ENCRYPTED_LENGTH))
+            if (!RECORD_LAYER_setup_comp_buffer(&s->rlayer))
                 goto err;
         }
 #endif