X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fbio%2Fbf_buff.c;h=361d26a5b73dd6a23d6698005b9bb480efc66e8b;hp=4fd8d15405bab45e88bc00089334e8f5dfdd0f64;hb=2c25ebd1e29a837b1c0e5fea5f464d4b6ddbab5a;hpb=b39fc560612984e65ec30d7f37487303bf514fb3

diff --git a/crypto/bio/bf_buff.c b/crypto/bio/bf_buff.c
index 4fd8d15405..361d26a5b7 100644
--- a/crypto/bio/bf_buff.c
+++ b/crypto/bio/bf_buff.c
@@ -1,4 +1,3 @@
-/* crypto/bio/bf_buff.c */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -58,8 +57,8 @@
 
 #include <stdio.h>
 #include <errno.h>
+#include "bio_lcl.h"
 #include "internal/cryptlib.h"
-#include <openssl/bio.h>
 
 static int buffer_write(BIO *h, const char *buf, int num);
 static int buffer_read(BIO *h, char *buf, int size);
@@ -71,7 +70,7 @@ static int buffer_free(BIO *data);
 static long buffer_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
 #define DEFAULT_BUFFER_SIZE     4096
 
-static BIO_METHOD methods_buffer = {
+static const BIO_METHOD methods_buffer = {
     BIO_TYPE_BUFFER,
     "buffer",
     buffer_write,
@@ -84,34 +83,30 @@ static BIO_METHOD methods_buffer = {
     buffer_callback_ctrl,
 };
 
-BIO_METHOD *BIO_f_buffer(void)
+const BIO_METHOD *BIO_f_buffer(void)
 {
     return (&methods_buffer);
 }
 
 static int buffer_new(BIO *bi)
 {
-    BIO_F_BUFFER_CTX *ctx = OPENSSL_malloc(sizeof(*ctx));
+    BIO_F_BUFFER_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
 
     if (ctx == NULL)
         return (0);
+    ctx->ibuf_size = DEFAULT_BUFFER_SIZE;
     ctx->ibuf = OPENSSL_malloc(DEFAULT_BUFFER_SIZE);
     if (ctx->ibuf == NULL) {
         OPENSSL_free(ctx);
         return (0);
     }
+    ctx->obuf_size = DEFAULT_BUFFER_SIZE;
     ctx->obuf = OPENSSL_malloc(DEFAULT_BUFFER_SIZE);
     if (ctx->obuf == NULL) {
         OPENSSL_free(ctx->ibuf);
         OPENSSL_free(ctx);
         return (0);
     }
-    ctx->ibuf_size = DEFAULT_BUFFER_SIZE;
-    ctx->obuf_size = DEFAULT_BUFFER_SIZE;
-    ctx->ibuf_len = 0;
-    ctx->ibuf_off = 0;
-    ctx->obuf_len = 0;
-    ctx->obuf_off = 0;
 
     bi->init = 1;
     bi->ptr = (char *)ctx;