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60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
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/*
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* Copyright 2024 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/crypto.h>
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#include <openssl/comp.h>
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#include <openssl/obj_mac.h>
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#include "internal/cryptlib.h"
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#include "internal/comp.h"
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#define SSL_COMP_NULL_IDX 0
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#define SSL_COMP_ZLIB_IDX 1
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#define SSL_COMP_NUM_IDX 2
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#ifndef OPENSSL_NO_COMP
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static int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b)
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{
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return ((*a)->id - (*b)->id);
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}
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#endif
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STACK_OF(SSL_COMP) *ossl_load_builtin_compressions(void)
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{
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STACK_OF(SSL_COMP) *comp_methods = NULL;
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#ifndef OPENSSL_NO_COMP
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SSL_COMP *comp = NULL;
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COMP_METHOD *method = COMP_zlib();
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comp_methods = sk_SSL_COMP_new(sk_comp_cmp);
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if (COMP_get_type(method) != NID_undef && comp_methods != NULL) {
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comp = OPENSSL_malloc(sizeof(*comp));
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if (comp != NULL) {
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comp->method = method;
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comp->id = SSL_COMP_ZLIB_IDX;
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comp->name = COMP_get_name(method);
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if (!sk_SSL_COMP_push(comp_methods, comp))
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OPENSSL_free(comp);
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}
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}
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#endif
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return comp_methods;
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}
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static void cmeth_free(SSL_COMP *cm)
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{
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OPENSSL_free(cm);
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}
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void ossl_free_compression_methods_int(STACK_OF(SSL_COMP) *methods)
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{
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sk_SSL_COMP_pop_free(methods, cmeth_free);
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}
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