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NAME

       DSA_SIG_get0, DSA_SIG_set0, DSA_SIG_new, DSA_SIG_free - allocate and free DSA signature
       objects

SYNOPSIS

        #include <openssl/dsa.h>

        DSA_SIG *DSA_SIG_new(void);
        void DSA_SIG_free(DSA_SIG *a);
        void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
        int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);

DESCRIPTION

       DSA_SIG_new() allocates an empty DSA_SIG structure.

       DSA_SIG_free() frees the DSA_SIG structure and its components. The values are erased
       before the memory is returned to the system.

       DSA_SIG_get0() returns internal pointers to the r and s values contained in sig.

       The r and s values can be set by calling DSA_SIG_set0() and passing the new values for r
       and s as parameters to the function. Calling this function transfers the memory management
       of the values to the DSA_SIG object, and therefore the values that have been passed in
       should not be freed directly after this function has been called.

RETURN VALUES

       If the allocation fails, DSA_SIG_new() returns NULL and sets an error code that can be
       obtained by ERR_get_error(3). Otherwise it returns a pointer to the newly allocated
       structure.

       DSA_SIG_free() returns no value.

       DSA_SIG_set0() returns 1 on success or 0 on failure.

SEE ALSO

       DSA_new(3), ERR_get_error(3), DSA_do_sign(3)

COPYRIGHT

       Copyright 2000-2016 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>.