Add a pointer to a paper (is the algorithm in section 4.2 the

[oweals/openssl.git] / crypto / bio / bio_lib.c

diff --git a/crypto/bio/bio_lib.c b/crypto/bio/bio_lib.c
index c0bda7a950fcfa551f1f8fc58cacb038fb764778..ae225da986bcca00f886f96fbf736c6bf7e5a6bc 100644 (file)
--- a/crypto/bio/bio_lib.c
+++ b/crypto/bio/bio_lib.c
@@ -63,7 +63,7 @@
 #include <openssl/bio.h>
 #include <openssl/stack.h>
 
-static STACK *bio_meth=NULL;
+static STACK_OF(CRYPTO_EX_DATA_FUNCS) *bio_meth=NULL;
 static int bio_meth_num=0;
 
 BIO *BIO_new(BIO_METHOD *method)
@@ -100,7 +100,7 @@ int BIO_set(BIO *bio, BIO_METHOD *method)
        bio->references=1;
        bio->num_read=0L;
        bio->num_write=0L;
-       CRYPTO_new_ex_data(bio_meth,(char *)bio,&bio->ex_data);
+       CRYPTO_new_ex_data(bio_meth,bio,&bio->ex_data);
        if (method->create != NULL)
                if (!method->create(bio))
                        return(0);
@@ -117,7 +117,7 @@ int BIO_free(BIO *a)
 #ifdef REF_PRINT
        REF_PRINT("BIO",a);
 #endif
-        if (i > 0) return(1);
+       if (i > 0) return(1);
 #ifdef REF_CHECK
        if (i < 0)
                {
@@ -129,7 +129,7 @@ int BIO_free(BIO *a)
                ((i=(int)a->callback(a,BIO_CB_FREE,NULL,0,0L,1L)) <= 0))
                        return(i);
 
-       CRYPTO_free_ex_data(bio_meth,(char *)a,&a->ex_data);
+       CRYPTO_free_ex_data(bio_meth,a,&a->ex_data);
 
        if ((a->method == NULL) || (a->method->destroy == NULL)) return(1);
        ret=a->method->destroy(a);
@@ -290,7 +290,7 @@ char *BIO_ptr_ctrl(BIO *b, int cmd, long larg)
                return(p);
        }
 
-long BIO_ctrl(BIO *b, int cmd, long larg, char *parg)
+long BIO_ctrl(BIO *b, int cmd, long larg, void *parg)
        {
        long ret;
        long (*cb)();
@@ -317,6 +317,20 @@ long BIO_ctrl(BIO *b, int cmd, long larg, char *parg)
        return(ret);
        }
 
+/* It is unfortunate to duplicate in functions what the BIO_(w)pending macros
+ * do; but those macros have inappropriate return type, and for interfacing
+ * from other programming languages, C macros aren't much of a help anyway. */
+size_t BIO_ctrl_pending(BIO *bio)
+    {
+       return BIO_ctrl(bio, BIO_CTRL_PENDING, 0, NULL);
+       }
+
+size_t BIO_ctrl_wpending(BIO *bio)
+    {
+       return BIO_ctrl(bio, BIO_CTRL_WPENDING, 0, NULL);
+       }
+
+
 /* put the 'bio' on the end of b's list of operators */
 BIO *BIO_push(BIO *b, BIO *bio)
        {
@@ -434,9 +448,9 @@ BIO *BIO_dup_chain(BIO *in)
                        goto err;
                        }
 
-               /* copy app data */
-               if (!CRYPTO_dup_ex_data(bio_meth,&new->ex_data,&bio->ex_data))
-                       goto err;
+               /* copy app data */
+               if (!CRYPTO_dup_ex_data(bio_meth,&new->ex_data,&bio->ex_data))
+                       goto err;
 
                if (ret == NULL)
                        {
@@ -462,21 +476,32 @@ void BIO_copy_next_retry(BIO *b)
        b->retry_reason=b->next_bio->retry_reason;
        }
 
-int BIO_get_ex_new_index(long argl, char *argp, int (*new_func)(),
-            int (*dup_func)(), void (*free_func)())
-        {
-        bio_meth_num++;
-        return(CRYPTO_get_ex_new_index(bio_meth_num-1,&bio_meth,
-                argl,argp,new_func,dup_func,free_func));
-        }
+int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+            CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
+       {
+       bio_meth_num++;
+       return(CRYPTO_get_ex_new_index(bio_meth_num-1,&bio_meth,
+               argl,argp,new_func,dup_func,free_func));
+       }
 
-int BIO_set_ex_data(BIO *bio, int idx, char *data)
+int BIO_set_ex_data(BIO *bio, int idx, void *data)
        {
        return(CRYPTO_set_ex_data(&(bio->ex_data),idx,data));
        }
 
-char *BIO_get_ex_data(BIO *bio, int idx)
+void *BIO_get_ex_data(BIO *bio, int idx)
        {
        return(CRYPTO_get_ex_data(&(bio->ex_data),idx));
        }
 
+unsigned long BIO_number_read(BIO *bio)
+{
+       if(bio) return bio->num_read;
+       return 0;
+}
+
+unsigned long BIO_number_written(BIO *bio)
+{
+       if(bio) return bio->num_write;
+       return 0;
+}