X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=crypto%2Fbio%2Fbio_lib.c;h=9c9646afa8a22c3a6a208877c76e7f92d8458f31;hb=94c666479d2c099f697233a3f8a8082afa135d0b;hp=62d26992af33d9404acd5bf3a89dd43e34393768;hpb=b1c4fe36258dde2950f59fec5d5f86743e495d9d;p=openssl.git

diff --git a/crypto/bio/bio_lib.c b/crypto/bio/bio_lib.c
index 62d26992af..9c9646afa8 100644
--- a/crypto/bio/bio_lib.c
+++ b/crypto/bio/bio_lib.c
@@ -63,14 +63,11 @@
 #include <openssl/bio.h>
 #include <openssl/stack.h>
 
-static STACK *bio_meth=NULL;
-static int bio_meth_num=0;
-
 BIO *BIO_new(BIO_METHOD *method)
 	{
 	BIO *ret=NULL;
 
-	ret=(BIO *)Malloc(sizeof(BIO));
+	ret=(BIO *)OPENSSL_malloc(sizeof(BIO));
 	if (ret == NULL)
 		{
 		BIOerr(BIO_F_BIO_NEW,ERR_R_MALLOC_FAILURE);
@@ -78,7 +75,7 @@ BIO *BIO_new(BIO_METHOD *method)
 		}
 	if (!BIO_set(ret,method))
 		{
-		Free(ret);
+		OPENSSL_free(ret);
 		ret=NULL;
 		}
 	return(ret);
@@ -100,16 +97,20 @@ 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(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
 	if (method->create != NULL)
 		if (!method->create(bio))
+			{
+			CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio,
+					&bio->ex_data);
 			return(0);
+			}
 	return(1);
 	}
 
 int BIO_free(BIO *a)
 	{
-	int ret=0,i;
+	int i;
 
 	if (a == NULL) return(0);
 
@@ -129,18 +130,67 @@ 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(CRYPTO_EX_INDEX_BIO, a, &a->ex_data);
 
 	if ((a->method == NULL) || (a->method->destroy == NULL)) return(1);
-	ret=a->method->destroy(a);
-	Free(a);
+	a->method->destroy(a);
+	OPENSSL_free(a);
 	return(1);
 	}
 
+void BIO_vfree(BIO *a)
+    { BIO_free(a); }
+
+void BIO_clear_flags(BIO *b, int flags)
+	{
+	b->flags &= ~flags;
+	}
+
+int	BIO_test_flags(const BIO *b, int flags)
+	{
+	return (b->flags & flags);
+	}
+
+void	BIO_set_flags(BIO *b, int flags)
+	{
+	b->flags |= flags;
+	}
+
+long (*BIO_get_callback(const BIO *b))(struct bio_st *,int,const char *,int, long,long)
+	{
+	return b->callback;
+	}
+
+void BIO_set_callback(BIO *b, long (*cb)(struct bio_st *,int,const char *,int, long,long))
+	{
+	b->callback = cb;
+	}
+
+void BIO_set_callback_arg(BIO *b, char *arg)
+	{
+	b->cb_arg = arg;
+	}
+
+char * BIO_get_callback_arg(const BIO *b)
+	{
+	return b->cb_arg;
+	}
+
+const char * BIO_method_name(const BIO *b)
+	{
+	return b->method->name;
+	}
+
+int BIO_method_type(const BIO *b)
+	{
+	return b->method->type;
+	}
+
+
 int BIO_read(BIO *b, void *out, int outl)
 	{
 	int i;
-	long (*cb)();
+	long (*cb)(BIO *,int,const char *,int,long,long);
 
 	if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL))
 		{
@@ -169,10 +219,10 @@ int BIO_read(BIO *b, void *out, int outl)
 	return(i);
 	}
 
-int BIO_write(BIO *b, const char *in, int inl)
+int BIO_write(BIO *b, const void *in, int inl)
 	{
 	int i;
-	long (*cb)();
+	long (*cb)(BIO *,int,const char *,int,long,long);
 
 	if (b == NULL)
 		return(0);
@@ -198,13 +248,7 @@ int BIO_write(BIO *b, const char *in, int inl)
 
 	if (i > 0) b->num_write+=(unsigned long)i;
 
-	/* This is evil and not thread safe.  If the BIO has been freed,
-	 * we must not call the callback.  The only way to be able to
-	 * determine this is the reference count which is now invalid since
-	 * the memory has been free()ed.
-	 */
-	if (b->references <= 0) abort();
-	if (cb != NULL) /* && (b->references >= 1)) */
+	if (cb != NULL)
 		i=(int)cb(b,BIO_CB_WRITE|BIO_CB_RETURN,in,inl,
 			0L,(long)i);
 	return(i);
@@ -213,7 +257,7 @@ int BIO_write(BIO *b, const char *in, int inl)
 int BIO_puts(BIO *b, const char *in)
 	{
 	int i;
-	long (*cb)();
+	long (*cb)(BIO *,int,const char *,int,long,long);
 
 	if ((b == NULL) || (b->method == NULL) || (b->method->bputs == NULL))
 		{
@@ -235,6 +279,8 @@ int BIO_puts(BIO *b, const char *in)
 
 	i=b->method->bputs(b,in);
 
+	if (i > 0) b->num_write+=(unsigned long)i;
+
 	if (cb != NULL)
 		i=(int)cb(b,BIO_CB_PUTS|BIO_CB_RETURN,in,0,
 			0L,(long)i);
@@ -244,7 +290,7 @@ int BIO_puts(BIO *b, const char *in)
 int BIO_gets(BIO *b, char *in, int inl)
 	{
 	int i;
-	long (*cb)();
+	long (*cb)(BIO *,int,const char *,int,long,long);
 
 	if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL))
 		{
@@ -272,6 +318,18 @@ int BIO_gets(BIO *b, char *in, int inl)
 	return(i);
 	}
 
+int BIO_indent(BIO *b,int indent,int max)
+	{
+	if(indent < 0)
+		indent=0;
+	if(indent > max)
+		indent=max;
+	while(indent--)
+		if(BIO_puts(b," ") != 1)
+			return 0;
+	return 1;
+	}
+
 long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg)
 	{
 	int i;
@@ -290,10 +348,10 @@ 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)();
+	long (*cb)(BIO *,int,const char *,int,long,long);
 
 	if (b == NULL) return(0);
 
@@ -317,6 +375,47 @@ long BIO_ctrl(BIO *b, int cmd, long larg, char *parg)
 	return(ret);
 	}
 
+long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long))
+	{
+	long ret;
+	long (*cb)(BIO *,int,const char *,int,long,long);
+
+	if (b == NULL) return(0);
+
+	if ((b->method == NULL) || (b->method->callback_ctrl == NULL))
+		{
+		BIOerr(BIO_F_BIO_CALLBACK_CTRL,BIO_R_UNSUPPORTED_METHOD);
+		return(-2);
+		}
+
+	cb=b->callback;
+
+	if ((cb != NULL) &&
+		((ret=cb(b,BIO_CB_CTRL,(void *)&fp,cmd,0,1L)) <= 0))
+		return(ret);
+
+	ret=b->method->callback_ctrl(b,cmd,fp);
+
+	if (cb != NULL)
+		ret=cb(b,BIO_CB_CTRL|BIO_CB_RETURN,(void *)&fp,cmd,
+			0,ret);
+	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)
 	{
@@ -330,7 +429,7 @@ BIO *BIO_push(BIO *b, BIO *bio)
 	if (bio != NULL)
 		bio->prev_bio=lb;
 	/* called to do internal processing */
-	BIO_ctrl(b,BIO_CTRL_PUSH,0,NULL);
+	BIO_ctrl(b,BIO_CTRL_PUSH,0,lb);
 	return(b);
 	}
 
@@ -342,6 +441,8 @@ BIO *BIO_pop(BIO *b)
 	if (b == NULL) return(NULL);
 	ret=b->next_bio;
 
+	BIO_ctrl(b,BIO_CTRL_POP,0,b);
+
 	if (b->prev_bio != NULL)
 		b->prev_bio->next_bio=b->next_bio;
 	if (b->next_bio != NULL)
@@ -349,7 +450,6 @@ BIO *BIO_pop(BIO *b)
 
 	b->next_bio=NULL;
 	b->prev_bio=NULL;
-	BIO_ctrl(b,BIO_CTRL_POP,0,NULL);
 	return(ret);
 	}
 
@@ -378,6 +478,7 @@ BIO *BIO_find_type(BIO *bio, int type)
 	{
 	int mt,mask;
 
+	if(!bio) return NULL;
 	mask=type&0xff;
 	do	{
 		if (bio->method != NULL)
@@ -396,6 +497,12 @@ BIO *BIO_find_type(BIO *bio, int type)
 	return(NULL);
 	}
 
+BIO *BIO_next(BIO *b)
+	{
+	if(!b) return NULL;
+	return b->next_bio;
+	}
+
 void BIO_free_all(BIO *bio)
 	{
 	BIO *b;
@@ -414,39 +521,40 @@ void BIO_free_all(BIO *bio)
 
 BIO *BIO_dup_chain(BIO *in)
 	{
-	BIO *ret=NULL,*eoc=NULL,*bio,*new;
+	BIO *ret=NULL,*eoc=NULL,*bio,*new_bio;
 
 	for (bio=in; bio != NULL; bio=bio->next_bio)
 		{
-		if ((new=BIO_new(bio->method)) == NULL) goto err;
-		new->callback=bio->callback;
-		new->cb_arg=bio->cb_arg;
-		new->init=bio->init;
-		new->shutdown=bio->shutdown;
-		new->flags=bio->flags;
+		if ((new_bio=BIO_new(bio->method)) == NULL) goto err;
+		new_bio->callback=bio->callback;
+		new_bio->cb_arg=bio->cb_arg;
+		new_bio->init=bio->init;
+		new_bio->shutdown=bio->shutdown;
+		new_bio->flags=bio->flags;
 
 		/* This will let SSL_s_sock() work with stdin/stdout */
-		new->num=bio->num;
+		new_bio->num=bio->num;
 
-		if (!BIO_dup_state(bio,(char *)new))
+		if (!BIO_dup_state(bio,(char *)new_bio))
 			{
-			BIO_free(new);
+			BIO_free(new_bio);
 			goto err;
 			}
 
 		/* copy app data */
-		if (!CRYPTO_dup_ex_data(bio_meth,&new->ex_data,&bio->ex_data))
+		if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO, &new_bio->ex_data,
+					&bio->ex_data))
 			goto err;
 
 		if (ret == NULL)
 			{
-			eoc=new;
+			eoc=new_bio;
 			ret=eoc;
 			}
 		else
 			{
-			BIO_push(eoc,new);
-			eoc=new;
+			BIO_push(eoc,new_bio);
+			eoc=new_bio;
 			}
 		}
 	return(ret);
@@ -462,21 +570,33 @@ 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)())
+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));
+	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, 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;
+}
+
+IMPLEMENT_STACK_OF(BIO)