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.\" DO NOT MODIFY THIS FILE! It was generated by gdoc.
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.TH "gnutls_x509_crq_get_extension_by_oid" 3 "3.6.14" "gnutls" "gnutls"
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.SH NAME
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gnutls_x509_crq_get_extension_by_oid \- API function
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.SH SYNOPSIS
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.B #include <gnutls/x509.h>
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.sp
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.BI "int gnutls_x509_crq_get_extension_by_oid(gnutls_x509_crq_t " crq ", const char * " oid ", unsigned " indx ", void * " buf ", size_t * " buf_size ", unsigned int * " critical ");"
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.SH ARGUMENTS
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.IP "gnutls_x509_crq_t crq" 12
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should contain a \fBgnutls_x509_crq_t\fP type
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.IP "const char * oid" 12
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holds an Object Identifier in a null terminated string
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.IP "unsigned indx" 12
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In case multiple same OIDs exist in the extensions, this
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specifies which to get. Use (0) to get the first one.
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.IP "void * buf" 12
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a pointer to a structure to hold the name (may be null)
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.IP "size_t * buf_size" 12
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initially holds the size of \fIbuf\fP
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.IP "unsigned int * critical" 12
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will be non\-zero if the extension is marked as critical
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.SH "DESCRIPTION"
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This function will return the extension specified by the OID in
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the certificate. The extensions will be returned as binary data
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DER encoded, in the provided buffer.
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.SH "RETURNS"
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On success, \fBGNUTLS_E_SUCCESS\fP (0) is returned, otherwise a
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negative error code in case of an error. If the certificate does not
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contain the specified extension
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\fBGNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE\fP will be returned.
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.SH "SINCE"
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2.8.0
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.SH "REPORTING BUGS"
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Report bugs to <bugs@gnutls.org>.
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.br
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Home page: https://www.gnutls.org
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.SH COPYRIGHT
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Copyright \(co 2001- Free Software Foundation, Inc., and others.
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.br
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved.
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.SH "SEE ALSO"
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The full documentation for
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.B gnutls
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is maintained as a Texinfo manual.
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If the /usr/share/doc/gnutls/
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directory does not contain the HTML form visit
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.B
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.IP https://www.gnutls.org/manual/
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.PP
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