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ASN1_UNIVERSALSTRING_TO_STRING(3) Library Functions Manual ASN1_UNIVERSALSTRING_TO_STRING(3)

ASN1_UNIVERSALSTRING_to_stringrecode UTF-32 to ISO Latin-1

#include <openssl/asn1.h>

int
ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *string);

() assumes that the given string is encoded in UTF-32, recodes it in place to ISO Latin-1, and changes the type according to ASN1_PRINTABLE_type(3).

() fails and leaves the string unchanged if its ASN1_STRING_type(3) is not V_ASN1_UNIVERSALSTRING, if its ASN1_STRING_length(3) is not a multiple of four bytes, or if any of its characters cannot be represented in ISO Latin-1.

In case of success, the ASN1_STRING_length(3) of the string is reduced by a factor of four.

ASN1_UNIVERSALSTRING_to_string() returns 1 on success or 0 on failure.

ASN1_mbstring_copy(3), ASN1_STRING_new(3), ASN1_STRING_to_UTF8(3)

ASN1_UNIVERSALSTRING_to_string() first appeared in SSLeay 0.8.0 and has been available since OpenBSD 2.4.

November 15, 2021 OpenBSD-7.4