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.\"
.IX Title "S2I_ASN1_IA5STRING 3ossl"
.TH S2I_ASN1_IA5STRING 3ossl "2024-09-03" "3.1.7+quic" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
i2s_ASN1_IA5STRING,
s2i_ASN1_IA5STRING,
i2s_ASN1_INTEGER,
s2i_ASN1_INTEGER,
i2s_ASN1_OCTET_STRING,
s2i_ASN1_OCTET_STRING,
i2s_ASN1_ENUMERATED,
i2s_ASN1_ENUMERATED_TABLE,
i2s_ASN1_UTF8STRING,
s2i_ASN1_UTF8STRING
\&\- convert objects from/to ASN.1/string representation
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/x509v3.h>
\&
\& char *i2s_ASN1_IA5STRING(X509V3_EXT_METHOD *method, ASN1_IA5STRING *ia5);
\& ASN1_IA5STRING *s2i_ASN1_IA5STRING(X509V3_EXT_METHOD *method,
\&                                   X509V3_CTX *ctx, const char *str);
\& char *i2s_ASN1_INTEGER(X509V3_EXT_METHOD *method, const ASN1_INTEGER *a);
\& ASN1_INTEGER *s2i_ASN1_INTEGER(X509V3_EXT_METHOD *method, const char *value);
\& char *i2s_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
\&                            const ASN1_OCTET_STRING *oct);
\& ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
\&                                         X509V3_CTX *ctx, const char *str);
\& char *i2s_ASN1_ENUMERATED(X509V3_EXT_METHOD *method, const ASN1_ENUMERATED *a);
\& char *i2s_ASN1_ENUMERATED_TABLE(X509V3_EXT_METHOD *method,
\&                                const ASN1_ENUMERATED *e);
\&
\& char *i2s_ASN1_UTF8STRING(X509V3_EXT_METHOD *method,
\&                           ASN1_UTF8STRING *utf8);
\& ASN1_UTF8STRING *s2i_ASN1_UTF8STRING(X509V3_EXT_METHOD *method,
\&                                      X509V3_CTX *ctx, const char *str);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
These functions convert OpenSSL objects to and from their \s-1ASN\s0.1/string
representation. This function is used for \fBX509v3\fR extensions.
.SH "NOTES"
.IX Header "NOTES"
The letters \fBi\fR and \fBs\fR in \fBi2s\fR and \fBs2i\fR stand for
\&\*(L"internal\*(R" (that is, an internal C structure) and string respectively.
So \fBi2s_ASN1_IA5STRING\fR() converts from internal to string.
.PP
It is the caller's responsibility to free the returned string.
In the \fBi2s_ASN1_IA5STRING\fR() function the string is copied and
the ownership of the original string remains with the caller.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBi2s_ASN1_IA5STRING\fR() returns the pointer to a \s-1IA5\s0 string
or \s-1NULL\s0 if an error occurs.
.PP
\&\fBs2i_ASN1_IA5STRING\fR() return a valid
\&\fB\s-1ASN1_IA5STRING\s0\fR structure or \s-1NULL\s0 if an error occurs.
.PP
\&\fBi2s_ASN1_INTEGER\fR() return a valid
string or \s-1NULL\s0 if an error occurs.
.PP
\&\fBs2i_ASN1_INTEGER\fR() returns the pointer to a \fB\s-1ASN1_INTEGER\s0\fR
structure or \s-1NULL\s0 if an error occurs.
.PP
\&\fBi2s_ASN1_OCTET_STRING\fR() returns the pointer to a \s-1OCTET_STRING\s0 string
or \s-1NULL\s0 if an error occurs.
.PP
\&\fBs2i_ASN1_OCTET_STRING\fR() return a valid
\&\fB\s-1ASN1_OCTET_STRING\s0\fR structure or \s-1NULL\s0 if an error occurs.
.PP
\&\fBi2s_ASN1_ENUMERATED\fR() return a valid
string or \s-1NULL\s0 if an error occurs.
.PP
\&\fBs2i_ASN1_ENUMERATED\fR() returns the pointer to a \fB\s-1ASN1_ENUMERATED\s0\fR
structure or \s-1NULL\s0 if an error occurs.
.PP
\&\fBs2i_ASN1_UTF8STRING\fR() return a valid
\&\fB\s-1ASN1_UTF8STRING\s0\fR structure or \s-1NULL\s0 if an error occurs.
.PP
\&\fBi2s_ASN1_UTF8STRING\fR() returns the pointer to a \s-1UTF\-8\s0 string
or \s-1NULL\s0 if an error occurs.
.SH "HISTORY"
.IX Header "HISTORY"
\&\fBi2s_ASN1_UTF8STRING()\fR and \fBs2i_ASN1_UTF8STRING()\fR were made public in OpenSSL 3.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2020\-2021 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the Apache License 2.0 (the \*(L"License\*(R").  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
<https://www.openssl.org/source/license.html>.