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6a835fcfb1
This adds ossl_namemap_empty(), to detect if a namemap is empty and can thereby be pre-populated. This also affects the way legacy NIDs are looked up in evp_cipher_from_dispatch() and evp_md_from_dispatch(). Instead of trying to find the NID directly, look up the legacy method structure and grab the NID from there. The reason is that NIDs can be aliases for other NIDs, which looks like a clash even if wasn't really one. Reviewed-by: Paul Dale <paul.dale@oracle.com> (Merged from https://github.com/openssl/openssl/pull/8984)
37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
/*
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* Copyright 2019 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 "internal/cryptlib.h"
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typedef struct ossl_namemap_st OSSL_NAMEMAP;
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OSSL_NAMEMAP *ossl_namemap_stored(OPENSSL_CTX *libctx);
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OSSL_NAMEMAP *ossl_namemap_new(void);
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void ossl_namemap_free(OSSL_NAMEMAP *namemap);
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int ossl_namemap_empty(OSSL_NAMEMAP *namemap);
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int ossl_namemap_add(OSSL_NAMEMAP *namemap, int number, const char *name);
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int ossl_namemap_add_n(OSSL_NAMEMAP *namemap, int number,
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const char *name, size_t name_len);
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/*
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* The number<->name relationship is 1<->many
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* Therefore, the name->number mapping is a simple function, while the
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* number->name mapping is an iterator.
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*/
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int ossl_namemap_name2num(const OSSL_NAMEMAP *namemap, const char *name);
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int ossl_namemap_name2num_n(const OSSL_NAMEMAP *namemap,
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const char *name, size_t name_len);
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const char *ossl_namemap_num2name(const OSSL_NAMEMAP *namemap, int number,
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size_t idx);
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void ossl_namemap_doall_names(const OSSL_NAMEMAP *namemap, int number,
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void (*fn)(const char *name, void *data),
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void *data);
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