-/* crypto/evp/bio_b64.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * 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.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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 "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/evp.h>
+#include "internal/bio.h"
static int b64_write(BIO *h, const char *buf, int num);
static int b64_read(BIO *h, char *buf, int size);
static int b64_puts(BIO *h, const char *str);
-/*
- * static int b64_gets(BIO *h, char *str, int size);
- */
static long b64_ctrl(BIO *h, int cmd, long arg1, void *arg2);
static int b64_new(BIO *h);
static int b64_free(BIO *data);
int encode;
int start; /* have we started decoding yet? */
int cont; /* <= 0 when finished */
- EVP_ENCODE_CTX base64;
+ EVP_ENCODE_CTX *base64;
char buf[EVP_ENCODE_LENGTH(B64_BLOCK_SIZE) + 10];
char tmp[B64_BLOCK_SIZE];
} BIO_B64_CTX;
-static BIO_METHOD methods_b64 = {
- BIO_TYPE_BASE64, "base64 encoding",
+static const BIO_METHOD methods_b64 = {
+ BIO_TYPE_BASE64,
+ "base64 encoding",
+ /* TODO: Convert to new style write function */
+ bwrite_conv,
b64_write,
+ /* TODO: Convert to new style read function */
+ bread_conv,
b64_read,
b64_puts,
NULL, /* b64_gets, */
b64_callback_ctrl,
};
-BIO_METHOD *BIO_f_base64(void)
+
+const BIO_METHOD *BIO_f_base64(void)
{
- return (&methods_b64);
+ return &methods_b64;
}
static int b64_new(BIO *bi)
{
BIO_B64_CTX *ctx;
- ctx = OPENSSL_malloc(sizeof(*ctx));
+ ctx = OPENSSL_zalloc(sizeof(*ctx));
if (ctx == NULL)
- return (0);
+ return 0;
- ctx->buf_len = 0;
- ctx->tmp_len = 0;
- ctx->tmp_nl = 0;
- ctx->buf_off = 0;
ctx->cont = 1;
ctx->start = 1;
- ctx->encode = 0;
+ ctx->base64 = EVP_ENCODE_CTX_new();
+ if (ctx->base64 == NULL) {
+ OPENSSL_free(ctx);
+ return 0;
+ }
+
+ BIO_set_data(bi, ctx);
+ BIO_set_init(bi, 1);
- bi->init = 1;
- bi->ptr = (char *)ctx;
- bi->flags = 0;
- bi->num = 0;
- return (1);
+ return 1;
}
static int b64_free(BIO *a)
{
+ BIO_B64_CTX *ctx;
if (a == NULL)
- return (0);
- OPENSSL_free(a->ptr);
- a->ptr = NULL;
- a->init = 0;
- a->flags = 0;
- return (1);
+ return 0;
+
+ ctx = BIO_get_data(a);
+ if (ctx == NULL)
+ return 0;
+
+ EVP_ENCODE_CTX_free(ctx->base64);
+ OPENSSL_free(ctx);
+ BIO_set_data(a, NULL);
+ BIO_set_init(a, 0);
+
+ return 1;
}
static int b64_read(BIO *b, char *out, int outl)
int ret = 0, i, ii, j, k, x, n, num, ret_code = 0;
BIO_B64_CTX *ctx;
unsigned char *p, *q;
+ BIO *next;
if (out == NULL)
- return (0);
- ctx = (BIO_B64_CTX *)b->ptr;
+ return 0;
+ ctx = (BIO_B64_CTX *)BIO_get_data(b);
- if ((ctx == NULL) || (b->next_bio == NULL))
- return (0);
+ next = BIO_next(b);
+ if ((ctx == NULL) || (next == NULL))
+ return 0;
BIO_clear_retry_flags(b);
ctx->buf_len = 0;
ctx->buf_off = 0;
ctx->tmp_len = 0;
- EVP_DecodeInit(&(ctx->base64));
+ EVP_DecodeInit(ctx->base64);
}
/* First check if there are bytes decoded/encoded */
if (ctx->cont <= 0)
break;
- i = BIO_read(b->next_bio, &(ctx->tmp[ctx->tmp_len]),
+ i = BIO_read(next, &(ctx->tmp[ctx->tmp_len]),
B64_BLOCK_SIZE - ctx->tmp_len);
if (i <= 0) {
ret_code = i;
/* Should we continue next time we are called? */
- if (!BIO_should_retry(b->next_bio)) {
+ if (!BIO_should_retry(next)) {
ctx->cont = i;
/* If buffer empty break */
if (ctx->tmp_len == 0)
continue;
}
- k = EVP_DecodeUpdate(&(ctx->base64),
+ k = EVP_DecodeUpdate(ctx->base64,
(unsigned char *)ctx->buf,
&num, p, q - p);
if ((k <= 0) && (num == 0) && (ctx->start))
- EVP_DecodeInit(&ctx->base64);
+ EVP_DecodeInit(ctx->base64);
else {
if (p != (unsigned char *)
&(ctx->tmp[0])) {
for (x = 0; x < i; x++)
ctx->tmp[x] = p[x];
}
- EVP_DecodeInit(&ctx->base64);
+ EVP_DecodeInit(ctx->base64);
ctx->start = 0;
break;
}
}
i = z;
} else {
- i = EVP_DecodeUpdate(&(ctx->base64),
+ i = EVP_DecodeUpdate(ctx->base64,
(unsigned char *)ctx->buf, &ctx->buf_len,
(unsigned char *)ctx->tmp, i);
ctx->tmp_len = 0;
int n;
int i;
BIO_B64_CTX *ctx;
+ BIO *next;
+
+ ctx = (BIO_B64_CTX *)BIO_get_data(b);
+ next = BIO_next(b);
+ if ((ctx == NULL) || (next == NULL))
+ return 0;
- ctx = (BIO_B64_CTX *)b->ptr;
BIO_clear_retry_flags(b);
if (ctx->encode != B64_ENCODE) {
ctx->buf_len = 0;
ctx->buf_off = 0;
ctx->tmp_len = 0;
- EVP_EncodeInit(&(ctx->base64));
+ EVP_EncodeInit(ctx->base64);
}
OPENSSL_assert(ctx->buf_off < (int)sizeof(ctx->buf));
OPENSSL_assert(ctx->buf_len >= ctx->buf_off);
n = ctx->buf_len - ctx->buf_off;
while (n > 0) {
- i = BIO_write(b->next_bio, &(ctx->buf[ctx->buf_off]), n);
+ i = BIO_write(next, &(ctx->buf[ctx->buf_off]), n);
if (i <= 0) {
BIO_copy_next_retry(b);
- return (i);
+ return i;
}
OPENSSL_assert(i <= n);
ctx->buf_off += i;
ctx->buf_len = 0;
if ((in == NULL) || (inl <= 0))
- return (0);
+ return 0;
while (inl > 0) {
n = (inl > B64_BLOCK_SIZE) ? B64_BLOCK_SIZE : inl;
ret += n;
}
} else {
- EVP_EncodeUpdate(&(ctx->base64),
- (unsigned char *)ctx->buf, &ctx->buf_len,
- (unsigned char *)in, n);
+ if (!EVP_EncodeUpdate(ctx->base64,
+ (unsigned char *)ctx->buf, &ctx->buf_len,
+ (unsigned char *)in, n))
+ return ((ret == 0) ? -1 : ret);
OPENSSL_assert(ctx->buf_len <= (int)sizeof(ctx->buf));
OPENSSL_assert(ctx->buf_len >= ctx->buf_off);
ret += n;
ctx->buf_off = 0;
n = ctx->buf_len;
while (n > 0) {
- i = BIO_write(b->next_bio, &(ctx->buf[ctx->buf_off]), n);
+ i = BIO_write(next, &(ctx->buf[ctx->buf_off]), n);
if (i <= 0) {
BIO_copy_next_retry(b);
return ((ret == 0) ? i : ret);
ctx->buf_len = 0;
ctx->buf_off = 0;
}
- return (ret);
+ return ret;
}
static long b64_ctrl(BIO *b, int cmd, long num, void *ptr)
BIO_B64_CTX *ctx;
long ret = 1;
int i;
+ BIO *next;
- ctx = (BIO_B64_CTX *)b->ptr;
+ ctx = (BIO_B64_CTX *)BIO_get_data(b);
+ next = BIO_next(b);
+ if ((ctx == NULL) || (next == NULL))
+ return 0;
switch (cmd) {
case BIO_CTRL_RESET:
ctx->cont = 1;
ctx->start = 1;
ctx->encode = B64_NONE;
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
case BIO_CTRL_EOF: /* More to read */
if (ctx->cont <= 0)
ret = 1;
else
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
case BIO_CTRL_WPENDING: /* More to write in buffer */
OPENSSL_assert(ctx->buf_len >= ctx->buf_off);
ret = ctx->buf_len - ctx->buf_off;
if ((ret == 0) && (ctx->encode != B64_NONE)
- && (ctx->base64.num != 0))
+ && (EVP_ENCODE_CTX_num(ctx->base64) != 0))
ret = 1;
else if (ret <= 0)
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
case BIO_CTRL_PENDING: /* More to read in buffer */
OPENSSL_assert(ctx->buf_len >= ctx->buf_off);
ret = ctx->buf_len - ctx->buf_off;
if (ret <= 0)
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
case BIO_CTRL_FLUSH:
/* do a final write */
ctx->tmp_len = 0;
goto again;
}
- } else if (ctx->encode != B64_NONE && ctx->base64.num != 0) {
+ } else if (ctx->encode != B64_NONE
+ && EVP_ENCODE_CTX_num(ctx->base64) != 0) {
ctx->buf_off = 0;
- EVP_EncodeFinal(&(ctx->base64),
+ EVP_EncodeFinal(ctx->base64,
(unsigned char *)ctx->buf, &(ctx->buf_len));
/* push out the bytes */
goto again;
}
/* Finally flush the underlying BIO */
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
case BIO_C_DO_STATE_MACHINE:
BIO_clear_retry_flags(b);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
BIO_copy_next_retry(b);
break;
case BIO_CTRL_GET:
case BIO_CTRL_SET:
default:
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
}
- return (ret);
+ return ret;
}
static long b64_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
{
long ret = 1;
+ BIO *next = BIO_next(b);
- if (b->next_bio == NULL)
- return (0);
+ if (next == NULL)
+ return 0;
switch (cmd) {
default:
- ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
+ ret = BIO_callback_ctrl(next, cmd, fp);
break;
}
- return (ret);
+ return ret;
}
static int b64_puts(BIO *b, const char *str)
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