+/* ====================================================================
+ * Copyright (c) 1999-2015 The OpenSSL Project. All rights reserved.
+ *
+ * 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 above 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 acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/objects.h>
-#include <openssl/comp.h>
+#include "internal/comp.h"
#include <openssl/err.h>
+#include "internal/cryptlib_int.h"
+#include "internal/bio.h"
+#include "comp_lcl.h"
COMP_METHOD *COMP_zlib(void);
NULL,
NULL,
NULL,
- NULL,
- NULL,
};
#ifndef ZLIB
unsigned int olen, unsigned char *in,
unsigned int ilen);
-/* memory allocations functions for zlib intialization */
+/* memory allocations functions for zlib initialisation */
static void *zlib_zalloc(void *opaque, unsigned int no, unsigned int size)
{
void *p;
- p = OPENSSL_malloc(no * size);
- if (p)
- memset(p, 0, no * size);
+ p = OPENSSL_zalloc(no * size);
return p;
}
OPENSSL_free(address);
}
-# if 0
-static int zlib_compress_block(COMP_CTX *ctx, unsigned char *out,
- unsigned int olen, unsigned char *in,
- unsigned int ilen);
-static int zlib_expand_block(COMP_CTX *ctx, unsigned char *out,
- unsigned int olen, unsigned char *in,
- unsigned int ilen);
-
-static int zz_uncompress(Bytef *dest, uLongf * destLen, const Bytef *source,
- uLong sourceLen);
-
-static COMP_METHOD zlib_stateless_method = {
- NID_zlib_compression,
- LN_zlib_compression,
- NULL,
- NULL,
- zlib_compress_block,
- zlib_expand_block,
- NULL,
- NULL,
-};
-# endif
static COMP_METHOD zlib_stateful_method = {
NID_zlib_compression,
zlib_stateful_init,
zlib_stateful_finish,
zlib_stateful_compress_block,
- zlib_stateful_expand_block,
- NULL,
- NULL,
+ zlib_stateful_expand_block
};
/*
* OPENSSL_SYS_WIN32) */
# ifdef ZLIB_SHARED
-# include <openssl/dso.h>
+# include "internal/dso.h"
/* Function pointers */
typedef int (*compress_ft) (Bytef *dest, uLongf * destLen,
z_stream ostream;
};
-static int zlib_stateful_ex_idx = -1;
-
static int zlib_stateful_init(COMP_CTX *ctx)
{
int err;
- struct zlib_state *state =
- (struct zlib_state *)OPENSSL_malloc(sizeof(struct zlib_state));
+ struct zlib_state *state = OPENSSL_zalloc(sizeof(*state));
if (state == NULL)
goto err;
state->istream.opaque = Z_NULL;
state->istream.next_in = Z_NULL;
state->istream.next_out = Z_NULL;
- state->istream.avail_in = 0;
- state->istream.avail_out = 0;
err = inflateInit_(&state->istream, ZLIB_VERSION, sizeof(z_stream));
if (err != Z_OK)
goto err;
state->ostream.opaque = Z_NULL;
state->ostream.next_in = Z_NULL;
state->ostream.next_out = Z_NULL;
- state->ostream.avail_in = 0;
- state->ostream.avail_out = 0;
err = deflateInit_(&state->ostream, Z_DEFAULT_COMPRESSION,
ZLIB_VERSION, sizeof(z_stream));
if (err != Z_OK)
goto err;
- CRYPTO_new_ex_data(CRYPTO_EX_INDEX_COMP, ctx, &ctx->ex_data);
- CRYPTO_set_ex_data(&ctx->ex_data, zlib_stateful_ex_idx, state);
+ ctx->data = state;
return 1;
err:
- if (state)
- OPENSSL_free(state);
+ OPENSSL_free(state);
return 0;
}
static void zlib_stateful_finish(COMP_CTX *ctx)
{
- struct zlib_state *state =
- (struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
- zlib_stateful_ex_idx);
+ struct zlib_state *state = ctx->data;
inflateEnd(&state->istream);
deflateEnd(&state->ostream);
OPENSSL_free(state);
- CRYPTO_free_ex_data(CRYPTO_EX_INDEX_COMP, ctx, &ctx->ex_data);
}
static int zlib_stateful_compress_block(COMP_CTX *ctx, unsigned char *out,
unsigned int ilen)
{
int err = Z_OK;
- struct zlib_state *state =
- (struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
- zlib_stateful_ex_idx);
+ struct zlib_state *state = ctx->data;
if (state == NULL)
return -1;
err = deflate(&state->ostream, Z_SYNC_FLUSH);
if (err != Z_OK)
return -1;
-# ifdef DEBUG_ZLIB
- fprintf(stderr, "compress(%4d)->%4d %s\n",
- ilen, olen - state->ostream.avail_out,
- (ilen != olen - state->ostream.avail_out) ? "zlib" : "clear");
-# endif
return olen - state->ostream.avail_out;
}
unsigned int ilen)
{
int err = Z_OK;
-
- struct zlib_state *state =
- (struct zlib_state *)CRYPTO_get_ex_data(&ctx->ex_data,
- zlib_stateful_ex_idx);
+ struct zlib_state *state = ctx->data;
if (state == NULL)
return 0;
err = inflate(&state->istream, Z_SYNC_FLUSH);
if (err != Z_OK)
return -1;
-# ifdef DEBUG_ZLIB
- fprintf(stderr, "expand(%4d)->%4d %s\n",
- ilen, olen - state->istream.avail_out,
- (ilen != olen - state->istream.avail_out) ? "zlib" : "clear");
-# endif
return olen - state->istream.avail_out;
}
-# if 0
-static int zlib_compress_block(COMP_CTX *ctx, unsigned char *out,
- unsigned int olen, unsigned char *in,
- unsigned int ilen)
-{
- unsigned long l;
- int i;
- int clear = 1;
-
- if (ilen > 128) {
- out[0] = 1;
- l = olen - 1;
- i = compress(&(out[1]), &l, in, (unsigned long)ilen);
- if (i != Z_OK)
- return (-1);
- if (ilen > l) {
- clear = 0;
- l++;
- }
- }
- if (clear) {
- out[0] = 0;
- memcpy(&(out[1]), in, ilen);
- l = ilen + 1;
- }
-# ifdef DEBUG_ZLIB
- fprintf(stderr, "compress(%4d)->%4d %s\n",
- ilen, (int)l, (clear) ? "clear" : "zlib");
-# endif
- return ((int)l);
-}
-
-static int zlib_expand_block(COMP_CTX *ctx, unsigned char *out,
- unsigned int olen, unsigned char *in,
- unsigned int ilen)
-{
- unsigned long l;
- int i;
-
- if (in[0]) {
- l = olen;
- i = zz_uncompress(out, &l, &(in[1]), (unsigned long)ilen - 1);
- if (i != Z_OK)
- return (-1);
- } else {
- memcpy(out, &(in[1]), ilen - 1);
- l = ilen - 1;
- }
-# ifdef DEBUG_ZLIB
- fprintf(stderr, "expand (%4d)->%4d %s\n",
- ilen, (int)l, in[0] ? "zlib" : "clear");
-# endif
- return ((int)l);
-}
-
-static int zz_uncompress(Bytef *dest, uLongf * destLen, const Bytef *source,
- uLong sourceLen)
-{
- z_stream stream;
- int err;
-
- stream.next_in = (Bytef *)source;
- stream.avail_in = (uInt) sourceLen;
- /* Check for source > 64K on 16-bit machine: */
- if ((uLong) stream.avail_in != sourceLen)
- return Z_BUF_ERROR;
-
- stream.next_out = dest;
- stream.avail_out = (uInt) * destLen;
- if ((uLong) stream.avail_out != *destLen)
- return Z_BUF_ERROR;
-
- stream.zalloc = (alloc_func) 0;
- stream.zfree = (free_func) 0;
-
- err = inflateInit_(&stream, ZLIB_VERSION, sizeof(z_stream));
- if (err != Z_OK)
- return err;
-
- err = inflate(&stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- inflateEnd(&stream);
- return err;
- }
- *destLen = stream.total_out;
-
- err = inflateEnd(&stream);
- return err;
-}
-# endif
-
#endif
COMP_METHOD *COMP_zlib(void)
&& p_inflateInit_ && p_deflateEnd
&& p_deflate && p_deflateInit_ && p_zError)
zlib_loaded++;
+
+ if (!OPENSSL_init_crypto(OPENSSL_INIT_ZLIB, NULL)) {
+ int_comp_zlib_cleanup();
+ return meth;
+ }
+ if (zlib_loaded)
+ meth = &zlib_stateful_method;
}
}
#endif
-#ifdef ZLIB_SHARED
- if (zlib_loaded)
-#endif
-#if defined(ZLIB) || defined(ZLIB_SHARED)
- {
- /*
- * init zlib_stateful_ex_idx here so that in a multi-process
- * application it's enough to intialize openssl before forking (idx
- * will be inherited in all the children)
- */
- if (zlib_stateful_ex_idx == -1) {
- CRYPTO_w_lock(CRYPTO_LOCK_COMP);
- if (zlib_stateful_ex_idx == -1)
- zlib_stateful_ex_idx =
- CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_COMP,
- 0, NULL, NULL, NULL, NULL);
- CRYPTO_w_unlock(CRYPTO_LOCK_COMP);
- if (zlib_stateful_ex_idx == -1)
- goto err;
- }
-
- meth = &zlib_stateful_method;
- }
- err:
+#if defined(ZLIB)
+ meth = &zlib_stateful_method;
#endif
return (meth);
}
-void COMP_zlib_cleanup(void)
+void int_comp_zlib_cleanup(void)
{
#ifdef ZLIB_SHARED
- if (zlib_dso)
+ if (zlib_dso != NULL)
DSO_free(zlib_dso);
+ zlib_dso = NULL;
#endif
}
static long bio_zlib_ctrl(BIO *b, int cmd, long num, void *ptr);
static long bio_zlib_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp);
-static BIO_METHOD bio_meth_zlib = {
+static const BIO_METHOD bio_meth_zlib = {
BIO_TYPE_COMP,
"zlib",
bio_zlib_write,
bio_zlib_callback_ctrl
};
-BIO_METHOD *BIO_f_zlib(void)
+const BIO_METHOD *BIO_f_zlib(void)
{
return &bio_meth_zlib;
}
return 0;
}
# endif
- ctx = OPENSSL_malloc(sizeof(BIO_ZLIB_CTX));
- if (!ctx) {
+ ctx = OPENSSL_zalloc(sizeof(*ctx));
+ if (ctx == NULL) {
COMPerr(COMP_F_BIO_ZLIB_NEW, ERR_R_MALLOC_FAILURE);
return 0;
}
- ctx->ibuf = NULL;
- ctx->obuf = NULL;
ctx->ibufsize = ZLIB_DEFAULT_BUFSIZE;
ctx->obufsize = ZLIB_DEFAULT_BUFSIZE;
ctx->zin.zalloc = Z_NULL;
ctx->zin.zfree = Z_NULL;
- ctx->zin.next_in = NULL;
- ctx->zin.avail_in = 0;
- ctx->zin.next_out = NULL;
- ctx->zin.avail_out = 0;
ctx->zout.zalloc = Z_NULL;
ctx->zout.zfree = Z_NULL;
- ctx->zout.next_in = NULL;
- ctx->zout.avail_in = 0;
- ctx->zout.next_out = NULL;
- ctx->zout.avail_out = 0;
- ctx->odone = 0;
ctx->comp_level = Z_DEFAULT_COMPRESSION;
- bi->init = 1;
- bi->ptr = (char *)ctx;
- bi->flags = 0;
+ BIO_set_init(bi, 1);
+ BIO_set_data(bi, ctx);
+
return 1;
}
BIO_ZLIB_CTX *ctx;
if (!bi)
return 0;
- ctx = (BIO_ZLIB_CTX *) bi->ptr;
+ ctx = BIO_get_data(bi);
if (ctx->ibuf) {
/* Destroy decompress context */
inflateEnd(&ctx->zin);
OPENSSL_free(ctx->obuf);
}
OPENSSL_free(ctx);
- bi->ptr = NULL;
- bi->init = 0;
- bi->flags = 0;
+ BIO_set_data(bi, NULL);
+ BIO_set_init(bi, 0);
+
return 1;
}
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zin;
+ BIO *next = BIO_next(b);
+
if (!out || !outl)
return 0;
- ctx = (BIO_ZLIB_CTX *) b->ptr;
+ ctx = BIO_get_data(b);
zin = &ctx->zin;
BIO_clear_retry_flags(b);
if (!ctx->ibuf) {
ctx->ibuf = OPENSSL_malloc(ctx->ibufsize);
- if (!ctx->ibuf) {
+ if (ctx->ibuf == NULL) {
COMPerr(COMP_F_BIO_ZLIB_READ, ERR_R_MALLOC_FAILURE);
return 0;
}
* No data in input buffer try to read some in, if an error then
* return the total data read.
*/
- ret = BIO_read(b->next_bio, ctx->ibuf, ctx->ibufsize);
+ ret = BIO_read(next, ctx->ibuf, ctx->ibufsize);
if (ret <= 0) {
/* Total data read */
int tot = outl - zin->avail_out;
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zout;
+ BIO *next = BIO_next(b);
+
if (!in || !inl)
return 0;
- ctx = (BIO_ZLIB_CTX *) b->ptr;
+ ctx = BIO_get_data(b);
if (ctx->odone)
return 0;
zout = &ctx->zout;
if (!ctx->obuf) {
ctx->obuf = OPENSSL_malloc(ctx->obufsize);
/* Need error here */
- if (!ctx->obuf) {
+ if (ctx->obuf == NULL) {
COMPerr(COMP_F_BIO_ZLIB_WRITE, ERR_R_MALLOC_FAILURE);
return 0;
}
for (;;) {
/* If data in output buffer write it first */
while (ctx->ocount) {
- ret = BIO_write(b->next_bio, ctx->optr, ctx->ocount);
+ ret = BIO_write(next, ctx->optr, ctx->ocount);
if (ret <= 0) {
/* Total data written */
int tot = inl - zout->avail_in;
BIO_ZLIB_CTX *ctx;
int ret;
z_stream *zout;
- ctx = (BIO_ZLIB_CTX *) b->ptr;
+ BIO *next = BIO_next(b);
+
+ ctx = BIO_get_data(b);
/* If no data written or already flush show success */
if (!ctx->obuf || (ctx->odone && !ctx->ocount))
return 1;
for (;;) {
/* If data in output buffer write it first */
while (ctx->ocount) {
- ret = BIO_write(b->next_bio, ctx->optr, ctx->ocount);
+ ret = BIO_write(next, ctx->optr, ctx->ocount);
if (ret <= 0) {
BIO_copy_next_retry(b);
return ret;
BIO_ZLIB_CTX *ctx;
int ret, *ip;
int ibs, obs;
- if (!b->next_bio)
+ BIO *next = BIO_next(b);
+
+ if (next == NULL)
return 0;
- ctx = (BIO_ZLIB_CTX *) b->ptr;
+ ctx = BIO_get_data(b);
switch (cmd) {
case BIO_CTRL_RESET:
case BIO_CTRL_FLUSH:
ret = bio_zlib_flush(b);
if (ret > 0)
- ret = BIO_flush(b->next_bio);
+ ret = BIO_flush(next);
break;
case BIO_C_SET_BUFF_SIZE:
}
if (ibs != -1) {
- if (ctx->ibuf) {
- OPENSSL_free(ctx->ibuf);
- ctx->ibuf = NULL;
- }
+ OPENSSL_free(ctx->ibuf);
+ ctx->ibuf = NULL;
ctx->ibufsize = ibs;
}
if (obs != -1) {
- if (ctx->obuf) {
- OPENSSL_free(ctx->obuf);
- ctx->obuf = NULL;
- }
+ OPENSSL_free(ctx->obuf);
+ ctx->obuf = NULL;
ctx->obufsize = obs;
}
ret = 1;
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;
default:
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
}
static long bio_zlib_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
{
- if (!b->next_bio)
+ BIO *next = BIO_next(b);
+ if (next == NULL)
return 0;
- return BIO_callback_ctrl(b->next_bio, cmd, fp);
+ return BIO_callback_ctrl(next, cmd, fp);
}
#endif
projects / openssl.git / blobdiff