X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fcomp%2Fc_zlib.c;h=6a57f7092645d2dcb4e1583fe15da3dfcef1b703;hp=4508e7f6345a466075607217d87f4241c4560b51;hb=121ee399c91789b34898e25eed67802e7a888277;hpb=b548a1f11c06ccdfa4f52a539912d22d77ee309e diff --git a/crypto/comp/c_zlib.c b/crypto/comp/c_zlib.c index 4508e7f634..6a57f70926 100644 --- a/crypto/comp/c_zlib.c +++ b/crypto/comp/c_zlib.c @@ -1,9 +1,64 @@ +/* ==================================================================== + * 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 #include #include #include #include #include +#include "comp_lcl.h" COMP_METHOD *COMP_zlib(void); @@ -14,8 +69,6 @@ static COMP_METHOD zlib_method_nozlib = { NULL, NULL, NULL, - NULL, - NULL, }; #ifndef ZLIB @@ -56,9 +109,7 @@ static COMP_METHOD zlib_stateful_method = { zlib_stateful_init, zlib_stateful_finish, zlib_stateful_compress_block, - zlib_stateful_expand_block, - NULL, - NULL, + zlib_stateful_expand_block }; /* @@ -114,12 +165,10 @@ struct zlib_state { z_stream ostream; }; -static int zlib_stateful_ex_idx = -1; - static int zlib_stateful_init(COMP_CTX *ctx) { int err; - struct zlib_state *state = OPENSSL_malloc(sizeof(struct zlib_state)); + struct zlib_state *state = OPENSSL_malloc(sizeof(*state)); if (state == NULL) goto err; @@ -147,8 +196,7 @@ static int zlib_stateful_init(COMP_CTX *ctx) 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: OPENSSL_free(state); @@ -157,13 +205,10 @@ static int zlib_stateful_init(COMP_CTX *ctx) 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, @@ -171,9 +216,7 @@ 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; @@ -199,10 +242,7 @@ static int zlib_stateful_expand_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 0; @@ -254,33 +294,13 @@ COMP_METHOD *COMP_zlib(void) && p_inflateInit_ && p_deflateEnd && p_deflate && p_deflateInit_ && p_zError) zlib_loaded++; + 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); @@ -289,8 +309,7 @@ COMP_METHOD *COMP_zlib(void) void COMP_zlib_cleanup(void) { #ifdef ZLIB_SHARED - if (zlib_dso) - DSO_free(zlib_dso); + DSO_free(zlib_dso); #endif } @@ -348,7 +367,7 @@ static int bio_zlib_new(BIO *bi) return 0; } # endif - ctx = OPENSSL_malloc(sizeof(BIO_ZLIB_CTX)); + ctx = OPENSSL_malloc(sizeof(*ctx)); if (!ctx) { COMPerr(COMP_F_BIO_ZLIB_NEW, ERR_R_MALLOC_FAILURE); return 0;