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.\" DO NOT MODIFY THIS FILE! It was generated by gdoc.
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.TH "gnutls_x509_crt_get_extension_oid" 3 "3.6.2" "gnutls" "gnutls"
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.SH NAME
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gnutls_x509_crt_get_extension_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_crt_get_extension_oid(gnutls_x509_crt_t " cert ", unsigned " indx ", void * " oid ", size_t * " oid_size ");"
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.SH ARGUMENTS
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.IP "gnutls_x509_crt_t cert" 12
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should contain a \fBgnutls_x509_crt_t\fP type
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.IP "unsigned indx" 12
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Specifies which extension OID to send. Use (0) to get the first one.
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.IP "void * oid" 12
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a pointer to a structure to hold the OID (may be null)
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.IP "size_t * oid_size" 12
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initially holds the size of \fIoid\fP
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.SH "DESCRIPTION"
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This function will return the requested extension OID in the certificate.
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The extension OID will be stored as a string in the provided buffer.
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The \fIoid\fP returned will be null terminated, although \fIoid_size\fP will not
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account for the trailing null.
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.SH "RETURNS"
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On success, \fBGNUTLS_E_SUCCESS\fP (0) is returned,
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otherwise a negative error code is returned. If you have reached the
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last extension available \fBGNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE\fP
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will be returned.
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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: http://www.gnutls.org
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.SH COPYRIGHT
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Copyright \(co 2001-2018 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 http://www.gnutls.org/manual/
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.PP
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