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.IX Title &quot;ASN1_INTEGER_GET_INT64 3&quot;
.TH ASN1_INTEGER_GET_INT64 3 &quot;2023-09-11&quot; &quot;1.1.1w&quot; &quot;OpenSSL&quot;
.\&quot; For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH &quot;NAME&quot;
ASN1_INTEGER_get_uint64, ASN1_INTEGER_set_uint64, ASN1_INTEGER_get_int64, ASN1_INTEGER_get, ASN1_INTEGER_set_int64, ASN1_INTEGER_set, BN_to_ASN1_INTEGER, ASN1_INTEGER_to_BN, ASN1_ENUMERATED_get_int64, ASN1_ENUMERATED_get, ASN1_ENUMERATED_set_int64, ASN1_ENUMERATED_set, BN_to_ASN1_ENUMERATED, ASN1_ENUMERATED_to_BN \&amp;\- ASN.1 INTEGER and ENUMERATED utilities
.SH &quot;SYNOPSIS&quot;
.IX Header &quot;SYNOPSIS&quot;
.Vb 1
\&amp; #include &lt;openssl/asn1.h&gt;
\&amp;
\&amp; int ASN1_INTEGER_get_int64(int64_t *pr, const ASN1_INTEGER *a);
\&amp; long ASN1_INTEGER_get(const ASN1_INTEGER *a);
\&amp;
\&amp; int ASN1_INTEGER_set_int64(ASN1_INTEGER *a, int64_t r);
\&amp; int ASN1_INTEGER_set(const ASN1_INTEGER *a, long v);
\&amp;
\&amp; int ASN1_INTEGER_get_uint64(uint64_t *pr, const ASN1_INTEGER *a);
\&amp; int ASN1_INTEGER_set_uint64(ASN1_INTEGER *a, uint64_t r);
\&amp;
\&amp; ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai);
\&amp; BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn);
\&amp;
\&amp; int ASN1_ENUMERATED_get_int64(int64_t *pr, const ASN1_ENUMERATED *a);
\&amp; long ASN1_ENUMERATED_get(const ASN1_ENUMERATED *a);
\&amp;
\&amp; int ASN1_ENUMERATED_set_int64(ASN1_ENUMERATED *a, int64_t r);
\&amp; int ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v);
\&amp;
\&amp; ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai);
\&amp; BIGNUM *ASN1_ENUMERATED_to_BN(ASN1_ENUMERATED *ai, BIGNUM *bn);
.Ve
.SH &quot;DESCRIPTION&quot;
.IX Header &quot;DESCRIPTION&quot;
These functions convert to and from \fB\s-1ASN1_INTEGER\s0\fR and \fB\s-1ASN1_ENUMERATED\s0\fR
structures.
.PP
\&amp;\fIASN1_INTEGER_get_int64()\fR converts an \fB\s-1ASN1_INTEGER\s0\fR into an \fBint64_t\fR type
If successful it returns 1 and sets \fB*pr\fR to the value of \fBa\fR. If it fails
(due to invalid type or the value being too big to fit into an \fBint64_t\fR type)
it returns 0.
.PP
\&amp;\fIASN1_INTEGER_get_uint64()\fR is similar to \fIASN1_INTEGER_get_int64_t()\fR except it
converts to a \fBuint64_t\fR type and an error is returned if the passed integer
is negative.
.PP
\&amp;\fIASN1_INTEGER_get()\fR also returns the value of \fBa\fR but it returns 0 if \fBa\fR is
\&amp;\s-1NULL\s0 and \-1 on error (which is ambiguous because \-1 is a legitimate value for
an \fB\s-1ASN1_INTEGER\s0\fR). New applications should use \fIASN1_INTEGER_get_int64()\fR
instead.
.PP
\&amp;\fIASN1_INTEGER_set_int64()\fR sets the value of \fB\s-1ASN1_INTEGER\s0\fR \fBa\fR to the
\&amp;\fBint64_t\fR value \fBr\fR.
.PP
\&amp;\fIASN1_INTEGER_set_uint64()\fR sets the value of \fB\s-1ASN1_INTEGER\s0\fR \fBa\fR to the
\&amp;\fBuint64_t\fR value \fBr\fR.
.PP
\&amp;\fIASN1_INTEGER_set()\fR sets the value of \fB\s-1ASN1_INTEGER\s0\fR \fBa\fR to the \fBlong\fR value
\&amp;\fBv\fR.
.PP
\&amp;\fIBN_to_ASN1_INTEGER()\fR converts \fB\s-1BIGNUM\s0\fR \fBbn\fR to an \fB\s-1ASN1_INTEGER\s0\fR. If \fBai\fR
is \s-1NULL\s0 a new \fB\s-1ASN1_INTEGER\s0\fR structure is returned. If \fBai\fR is not \s-1NULL\s0 then
the existing structure will be used instead.
.PP
\&amp;\fIASN1_INTEGER_to_BN()\fR converts \s-1ASN1_INTEGER \s0\fBai\fR into a \fB\s-1BIGNUM\s0\fR. If \fBbn\fR is
\&amp;\s-1NULL\s0 a new \fB\s-1BIGNUM\s0\fR structure is returned. If \fBbn\fR is not \s-1NULL\s0 then the
existing structure will be used instead.
.PP
\&amp;\fIASN1_ENUMERATED_get_int64()\fR, \fIASN1_ENUMERATED_set_int64()\fR,
\&amp;\fIASN1_ENUMERATED_set()\fR, \fIBN_to_ASN1_ENUMERATED()\fR and \fIASN1_ENUMERATED_to_BN()\fR
behave in an identical way to their \s-1ASN1_INTEGER\s0 counterparts except they
operate on an \fB\s-1ASN1_ENUMERATED\s0\fR value.
.PP
\&amp;\fIASN1_ENUMERATED_get()\fR returns the value of \fBa\fR in a similar way to
\&amp;\fIASN1_INTEGER_get()\fR but it returns \fB0xffffffffL\fR if the value of \fBa\fR will not
fit in a long type. New applications should use \fIASN1_ENUMERATED_get_int64()\fR
instead.
.SH &quot;NOTES&quot;
.IX Header &quot;NOTES&quot;
In general an \fB\s-1ASN1_INTEGER\s0\fR or \fB\s-1ASN1_ENUMERATED\s0\fR type can contain an
integer of almost arbitrary size and so cannot always be represented by a C
\&amp;\fBint64_t\fR type. However, in many cases (for example version numbers) they
represent small integers which can be more easily manipulated if converted to
an appropriate C integer type.
.SH &quot;BUGS&quot;
.IX Header &quot;BUGS&quot;
The ambiguous return values of \fIASN1_INTEGER_get()\fR and \fIASN1_ENUMERATED_get()\fR
mean these functions should be avoided if possible. They are retained for
compatibility. Normally the ambiguous return values are not legitimate
values for the fields they represent.
.SH &quot;RETURN VALUES&quot;
.IX Header &quot;RETURN VALUES&quot;
\&amp;\fIASN1_INTEGER_set_int64()\fR, \fIASN1_INTEGER_set()\fR, \fIASN1_ENUMERATED_set_int64()\fR and
\&amp;\fIASN1_ENUMERATED_set()\fR return 1 for success and 0 for failure. They will only
fail if a memory allocation error occurs.
.PP
\&amp;\fIASN1_INTEGER_get_int64()\fR and \fIASN1_ENUMERATED_get_int64()\fR return 1 for success
and 0 for failure. They will fail if the passed type is incorrect (this will
only happen if there is a programming error) or if the value exceeds the range
of an \fBint64_t\fR type.
.PP
\&amp;\fIBN_to_ASN1_INTEGER()\fR and \fIBN_to_ASN1_ENUMERATED()\fR return an \fB\s-1ASN1_INTEGER\s0\fR or
\&amp;\fB\s-1ASN1_ENUMERATED\s0\fR structure respectively or \s-1NULL\s0 if an error occurs. They will
only fail due to a memory allocation error.
.PP
\&amp;\fIASN1_INTEGER_to_BN()\fR and \fIASN1_ENUMERATED_to_BN()\fR return a \fB\s-1BIGNUM\s0\fR structure
of \s-1NULL\s0 if an error occurs. They can fail if the passed type is incorrect
(due to programming error) or due to a memory allocation failure.
.SH &quot;SEE ALSO&quot;
.IX Header &quot;SEE ALSO&quot;
\&amp;\fIERR_get_error\fR\|(3)
.SH &quot;HISTORY&quot;
.IX Header &quot;HISTORY&quot;
\&amp;\fIASN1_INTEGER_set_int64()\fR, \fIASN1_INTEGER_get_int64()\fR,
\&amp;\fIASN1_ENUMERATED_set_int64()\fR and \fIASN1_ENUMERATED_get_int64()\fR
were added in OpenSSL 1.1.0.
.SH &quot;COPYRIGHT&quot;
.IX Header &quot;COPYRIGHT&quot;
Copyright 2015\-2020 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L&quot;License\*(R&quot;).  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
&lt;https://www.openssl.org/source/license.html&gt;.
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