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60 lines
1.7 KiB
Plaintext
60 lines
1.7 KiB
Plaintext
=pod
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=head1 NAME
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DSA_SIG_get0, DSA_SIG_set0,
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DSA_SIG_new, DSA_SIG_free - allocate and free DSA signature objects
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=head1 SYNOPSIS
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#include <openssl/dsa.h>
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DSA_SIG *DSA_SIG_new(void);
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void DSA_SIG_free(DSA_SIG *a);
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void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
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int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);
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=head1 DESCRIPTION
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DSA_SIG_new() allocates an empty B<DSA_SIG> structure.
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DSA_SIG_free() frees the B<DSA_SIG> structure and its components. The
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values are erased before the memory is returned to the system.
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If the argument is NULL, nothing is done.
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DSA_SIG_get0() returns internal pointers to the B<r> and B<s> values contained
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in B<sig>.
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The B<r> and B<s> values can be set by calling DSA_SIG_set0() and passing the
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new values for B<r> and B<s> as parameters to the function. Calling this
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function transfers the memory management of the values to the DSA_SIG object,
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and therefore the values that have been passed in should not be freed directly
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after this function has been called.
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=head1 RETURN VALUES
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If the allocation fails, DSA_SIG_new() returns B<NULL> and sets an
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error code that can be obtained by
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L<ERR_get_error(3)>. Otherwise it returns a pointer
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to the newly allocated structure.
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DSA_SIG_free() returns no value.
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DSA_SIG_set0() returns 1 on success or 0 on failure.
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=head1 SEE ALSO
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L<EVP_PKEY_new(3)>, L<EVP_PKEY_free(3)>, L<EVP_PKEY_get_bn_param(3)>,
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L<ERR_get_error(3)>
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=head1 COPYRIGHT
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Copyright 2000-2024 The OpenSSL Project Authors. All Rights Reserved.
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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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L<https://www.openssl.org/source/license.html>.
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=cut
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