diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/comp/comp_lib.c')
-rw-r--r-- | openssl-1.1.0h/crypto/comp/comp_lib.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/comp/comp_lib.c b/openssl-1.1.0h/crypto/comp/comp_lib.c new file mode 100644 index 0000000..32afd0d --- /dev/null +++ b/openssl-1.1.0h/crypto/comp/comp_lib.c @@ -0,0 +1,91 @@ +/* + * Copyright 1998-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * 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 <stdlib.h> +#include <string.h> +#include <openssl/objects.h> +#include <openssl/comp.h> +#include "comp_lcl.h" + +COMP_CTX *COMP_CTX_new(COMP_METHOD *meth) +{ + COMP_CTX *ret; + + if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) + return (NULL); + ret->meth = meth; + if ((ret->meth->init != NULL) && !ret->meth->init(ret)) { + OPENSSL_free(ret); + ret = NULL; + } + return (ret); +} + +const COMP_METHOD *COMP_CTX_get_method(const COMP_CTX *ctx) +{ + return ctx->meth; +} + +int COMP_get_type(const COMP_METHOD *meth) +{ + return meth->type; +} + +const char *COMP_get_name(const COMP_METHOD *meth) +{ + return meth->name; +} + +void COMP_CTX_free(COMP_CTX *ctx) +{ + if (ctx == NULL) + return; + + if (ctx->meth->finish != NULL) + ctx->meth->finish(ctx); + + OPENSSL_free(ctx); +} + +int COMP_compress_block(COMP_CTX *ctx, unsigned char *out, int olen, + unsigned char *in, int ilen) +{ + int ret; + if (ctx->meth->compress == NULL) { + return (-1); + } + ret = ctx->meth->compress(ctx, out, olen, in, ilen); + if (ret > 0) { + ctx->compress_in += ilen; + ctx->compress_out += ret; + } + return (ret); +} + +int COMP_expand_block(COMP_CTX *ctx, unsigned char *out, int olen, + unsigned char *in, int ilen) +{ + int ret; + + if (ctx->meth->expand == NULL) { + return (-1); + } + ret = ctx->meth->expand(ctx, out, olen, in, ilen); + if (ret > 0) { + ctx->expand_in += ilen; + ctx->expand_out += ret; + } + return (ret); +} + +int COMP_CTX_get_type(const COMP_CTX* comp) +{ + return comp->meth ? comp->meth->type : NID_undef; +} |