65 lines
2.0 KiB
Groff
65 lines
2.0 KiB
Groff
.\" $OpenBSD: ASN1_UNIVERSALSTRING_to_string.3,v 1.1 2021/11/15 13:39:40 schwarze Exp $
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.\"
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.\" Copyright (c) 2021 Ingo Schwarze <schwarze@openbsd.org>
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.Dd $Mdocdate: November 15 2021 $
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.Dt ASN1_UNIVERSALSTRING_TO_STRING 3
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.Os
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.Sh NAME
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.Nm ASN1_UNIVERSALSTRING_to_string
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.Nd recode UTF-32 to ISO Latin-1
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.Sh SYNOPSIS
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.In openssl/asn1.h
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.Ft int
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.Fo ASN1_UNIVERSALSTRING_to_string
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.Fa "ASN1_UNIVERSALSTRING *string"
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.Fc
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.Sh DESCRIPTION
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.Fn ASN1_UNIVERSALSTRING_to_string
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assumes that the given
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.Fa string
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is encoded in UTF-32, recodes it in place to ISO Latin-1,
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and changes the type according to
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.Xr ASN1_PRINTABLE_type 3 .
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.Pp
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.Fn ASN1_UNIVERSALSTRING_to_string
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fails and leaves the
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.Fa string
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unchanged if its
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.Xr ASN1_STRING_type 3
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is not
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.Dv V_ASN1_UNIVERSALSTRING ,
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if its
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.Xr ASN1_STRING_length 3
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is not a multiple of four bytes,
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or if any of its characters cannot be represented in ISO Latin-1.
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.Pp
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In case of success, the
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.Xr ASN1_STRING_length 3
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of the
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.Fa string
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is reduced by a factor of four.
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.Sh RETURN VALUES
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.Fn ASN1_UNIVERSALSTRING_to_string
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returns 1 on success or 0 on failure.
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.Sh SEE ALSO
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.Xr ASN1_mbstring_copy 3 ,
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.Xr ASN1_STRING_new 3 ,
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.Xr ASN1_STRING_to_UTF8 3
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.Sh HISTORY
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.Fn ASN1_UNIVERSALSTRING_to_string
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first appeared in SSLeay 0.8.0 and has been available since
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.Ox 2.4 .
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