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free NULL cleanup
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1=pod
2
3=head1 NAME
4
5DH_new, DH_free - allocate and free DH objects
6
7=head1 SYNOPSIS
8
9 #include <openssl/dh.h>
10
11 DH* DH_new(void);
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38e33cef 13 void DH_free(DH *dh);
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14
15=head1 DESCRIPTION
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17DH_new() allocates and initializes a B<DH> structure.
18
19DH_free() frees the B<DH> structure and its components. The values are
20erased before the memory is returned to the system.
d6407083 21If B<dh> is NULL nothing is done.
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22
23=head1 RETURN VALUES
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25If the allocation fails, DH_new() returns B<NULL> and sets an error
bb075f88 26code that can be obtained by L<ERR_get_error(3)|ERR_get_error(3)>. Otherwise it returns
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27a pointer to the newly allocated structure.
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29DH_free() returns no value.
30
31=head1 SEE ALSO
32
6859cf74 33L<dh(3)|dh(3)>, L<ERR_get_error(3)|ERR_get_error(3)>,
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34L<DH_generate_parameters(3)|DH_generate_parameters(3)>,
35L<DH_generate_key(3)|DH_generate_key(3)>
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36
37=head1 HISTORY
38
39DH_new() and DH_free() are available in all versions of SSLeay and OpenSSL.
40
41=cut