706a13f112
This adds a new accessor function DSA_SIG_get0. The customisation of DSA_SIG structure initialisation has been removed this means that the 'r' and 's' components are automatically allocated when DSA_SIG_new() is called. Update documentation. Reviewed-by: Rich Salz <rsalz@openssl.org>
40 lines
927 B
Plaintext
40 lines
927 B
Plaintext
=pod
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=head1 NAME
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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(BIGNUM **pr, BIGNUM **ps, DSA_SIG *sig);
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=head1 DESCRIPTION
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DSA_SIG_new() allocates and initializes a 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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DSA_SIG_get0() returns internal pointers the B<r> and B<s> values contained
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in B<sig>. The values can then be examined or initialised.
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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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=head1 SEE ALSO
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L<dsa(3)>, L<ERR_get_error(3)>,
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L<DSA_do_sign(3)>
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=cut
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