-/* crypto/evp/bio_md.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <errno.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/evp.h>
+#include "internal/evp_int.h"
+#include "evp_locl.h"
+#include "internal/bio.h"
-/* BIO_put and BIO_get both add to the digest,
- * BIO_gets returns the digest */
+/*
+ * BIO_put and BIO_get both add to the digest, BIO_gets returns the digest
+ */
static int md_write(BIO *h, char const *buf, int num);
static int md_read(BIO *h, char *buf, int size);
-/*static int md_puts(BIO *h, const char *str); */
static int md_gets(BIO *h, char *str, int size);
static long md_ctrl(BIO *h, int cmd, long arg1, void *arg2);
static int md_new(BIO *h);
static int md_free(BIO *data);
-static long md_callback_ctrl(BIO *h,int cmd,bio_info_cb *fp);
-
-static BIO_METHOD methods_md=
- {
- BIO_TYPE_MD,"message digest",
- md_write,
- md_read,
- NULL, /* md_puts, */
- md_gets,
- md_ctrl,
- md_new,
- md_free,
- md_callback_ctrl,
- };
-
-BIO_METHOD *BIO_f_md(void)
- {
- return(&methods_md);
- }
+static long md_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
+
+static const BIO_METHOD methods_md = {
+ BIO_TYPE_MD,
+ "message digest",
+ /* TODO: Convert to new style write function */
+ bwrite_conv,
+ md_write,
+ /* TODO: Convert to new style read function */
+ bread_conv,
+ md_read,
+ NULL, /* md_puts, */
+ md_gets,
+ md_ctrl,
+ md_new,
+ md_free,
+ md_callback_ctrl,
+};
+
+const BIO_METHOD *BIO_f_md(void)
+{
+ return &methods_md;
+}
static int md_new(BIO *bi)
- {
- EVP_MD_CTX *ctx;
+{
+ EVP_MD_CTX *ctx;
- ctx=(EVP_MD_CTX *)OPENSSL_malloc(sizeof(EVP_MD_CTX));
- if (ctx == NULL) return(0);
+ ctx = EVP_MD_CTX_new();
+ if (ctx == NULL)
+ return 0;
- bi->init=0;
- bi->ptr=(char *)ctx;
- bi->flags=0;
- return(1);
- }
+ BIO_set_init(bi, 1);
+ BIO_set_data(bi, ctx);
+
+ return 1;
+}
static int md_free(BIO *a)
- {
- if (a == NULL) return(0);
- OPENSSL_free(a->ptr);
- a->ptr=NULL;
- a->init=0;
- a->flags=0;
- return(1);
- }
-
+{
+ if (a == NULL)
+ return 0;
+ EVP_MD_CTX_free(BIO_get_data(a));
+ BIO_set_data(a, NULL);
+ BIO_set_init(a, 0);
+
+ return 1;
+}
+
static int md_read(BIO *b, char *out, int outl)
- {
- int ret=0;
- EVP_MD_CTX *ctx;
-
- if (out == NULL) return(0);
- ctx=(EVP_MD_CTX *)b->ptr;
-
- if ((ctx == NULL) || (b->next_bio == NULL)) return(0);
-
- ret=BIO_read(b->next_bio,out,outl);
- if (b->init)
- {
- if (ret > 0)
- {
- EVP_DigestUpdate(ctx,(unsigned char *)out,
- (unsigned int)ret);
- }
- }
- BIO_clear_retry_flags(b);
- BIO_copy_next_retry(b);
- return(ret);
- }
+{
+ int ret = 0;
+ EVP_MD_CTX *ctx;
+ BIO *next;
+
+ if (out == NULL)
+ return 0;
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
+
+ if ((ctx == NULL) || (next == NULL))
+ return 0;
+
+ ret = BIO_read(next, out, outl);
+ if (BIO_get_init(b)) {
+ if (ret > 0) {
+ if (EVP_DigestUpdate(ctx, (unsigned char *)out,
+ (unsigned int)ret) <= 0)
+ return -1;
+ }
+ }
+ BIO_clear_retry_flags(b);
+ BIO_copy_next_retry(b);
+ return ret;
+}
static int md_write(BIO *b, const char *in, int inl)
- {
- int ret=0;
- EVP_MD_CTX *ctx;
-
- if ((in == NULL) || (inl <= 0)) return(0);
- ctx=(EVP_MD_CTX *)b->ptr;
-
- if ((ctx != NULL) && (b->next_bio != NULL))
- ret=BIO_write(b->next_bio,in,inl);
- if (b->init)
- {
- if (ret > 0)
- {
- EVP_DigestUpdate(ctx,(unsigned char *)in,
- (unsigned int)ret);
- }
- }
- BIO_clear_retry_flags(b);
- BIO_copy_next_retry(b);
- return(ret);
- }
+{
+ int ret = 0;
+ EVP_MD_CTX *ctx;
+ BIO *next;
+
+ if ((in == NULL) || (inl <= 0))
+ return 0;
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
+ if ((ctx != NULL) && (next != NULL))
+ ret = BIO_write(next, in, inl);
+
+ if (BIO_get_init(b)) {
+ if (ret > 0) {
+ if (!EVP_DigestUpdate(ctx, (const unsigned char *)in,
+ (unsigned int)ret)) {
+ BIO_clear_retry_flags(b);
+ return 0;
+ }
+ }
+ }
+ if (next != NULL) {
+ BIO_clear_retry_flags(b);
+ BIO_copy_next_retry(b);
+ }
+ return ret;
+}
static long md_ctrl(BIO *b, int cmd, long num, void *ptr)
- {
- EVP_MD_CTX *ctx,*dctx,**pctx;
- const EVP_MD **ppmd;
- EVP_MD *md;
- long ret=1;
- BIO *dbio;
-
- ctx=(EVP_MD_CTX *)b->ptr;
-
- switch (cmd)
- {
- case BIO_CTRL_RESET:
- if (b->init)
- EVP_DigestInit(ctx,ctx->digest);
- else
- ret=0;
- ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
- break;
- case BIO_C_GET_MD:
- if (b->init)
- {
- ppmd=(const EVP_MD **)ptr;
- *ppmd=ctx->digest;
- }
- else
- ret=0;
- break;
- case BIO_C_GET_MD_CTX:
- if (b->init)
- {
- pctx=(EVP_MD_CTX **)ptr;
- *pctx=ctx;
- }
- else
- ret=0;
- break;
- case BIO_C_DO_STATE_MACHINE:
- BIO_clear_retry_flags(b);
- ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
- BIO_copy_next_retry(b);
- break;
-
- case BIO_C_SET_MD:
- md=(EVP_MD *)ptr;
- EVP_DigestInit(ctx,md);
- b->init=1;
- break;
- case BIO_CTRL_DUP:
- dbio=(BIO *)ptr;
- dctx=(EVP_MD_CTX *)dbio->ptr;
- memcpy(dctx,ctx,sizeof(ctx));
- b->init=1;
- break;
- default:
- ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
- break;
- }
- return(ret);
- }
+{
+ EVP_MD_CTX *ctx, *dctx, **pctx;
+ const EVP_MD **ppmd;
+ EVP_MD *md;
+ long ret = 1;
+ BIO *dbio, *next;
+
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
+
+ switch (cmd) {
+ case BIO_CTRL_RESET:
+ if (BIO_get_init(b))
+ ret = EVP_DigestInit_ex(ctx, ctx->digest, NULL);
+ else
+ ret = 0;
+ if (ret > 0)
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ case BIO_C_GET_MD:
+ if (BIO_get_init(b)) {
+ ppmd = ptr;
+ *ppmd = ctx->digest;
+ } else
+ ret = 0;
+ break;
+ case BIO_C_GET_MD_CTX:
+ pctx = ptr;
+ *pctx = ctx;
+ BIO_set_init(b, 1);
+ break;
+ case BIO_C_SET_MD_CTX:
+ if (BIO_get_init(b))
+ BIO_set_data(b, ptr);
+ else
+ ret = 0;
+ break;
+ case BIO_C_DO_STATE_MACHINE:
+ BIO_clear_retry_flags(b);
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ BIO_copy_next_retry(b);
+ break;
+
+ case BIO_C_SET_MD:
+ md = ptr;
+ ret = EVP_DigestInit_ex(ctx, md, NULL);
+ if (ret > 0)
+ BIO_set_init(b, 1);
+ break;
+ case BIO_CTRL_DUP:
+ dbio = ptr;
+ dctx = BIO_get_data(dbio);
+ if (!EVP_MD_CTX_copy_ex(dctx, ctx))
+ return 0;
+ BIO_set_init(b, 1);
+ break;
+ default:
+ ret = BIO_ctrl(next, cmd, num, ptr);
+ break;
+ }
+ return ret;
+}
static long md_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
- {
- long ret=1;
-
- if (b->next_bio == NULL) return(0);
- switch (cmd)
- {
- default:
- ret=BIO_callback_ctrl(b->next_bio,cmd,fp);
- break;
- }
- return(ret);
- }
+{
+ long ret = 1;
+ BIO *next;
+
+ next = BIO_next(b);
+
+ if (next == NULL)
+ return 0;
+
+ switch (cmd) {
+ default:
+ ret = BIO_callback_ctrl(next, cmd, fp);
+ break;
+ }
+ return ret;
+}
static int md_gets(BIO *bp, char *buf, int size)
- {
- EVP_MD_CTX *ctx;
- unsigned int ret;
+{
+ EVP_MD_CTX *ctx;
+ unsigned int ret;
+ ctx = BIO_get_data(bp);
- ctx=(EVP_MD_CTX *)bp->ptr;
- if (size < ctx->digest->md_size)
- return(0);
- EVP_DigestFinal(ctx,(unsigned char *)buf,&ret);
- return((int)ret);
- }
+ if (size < ctx->digest->md_size)
+ return 0;
-/*
-static int md_puts(bp,str)
-BIO *bp;
-char *str;
- {
- return(-1);
- }
-*/
+ if (EVP_DigestFinal_ex(ctx, (unsigned char *)buf, &ret) <= 0)
+ return -1;
+ return (int)ret;
+}
projects / openssl.git / blobdiff