.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
.TH "asn1_get_tag_der" 3 "4.19.0" "libtasn1" "libtasn1"
.SH NAME
asn1_get_tag_der \- API function
.SH SYNOPSIS
.B #include <libtasn1.h>
.sp
.BI "int asn1_get_tag_der(const unsigned char * " der ", int " der_len ", unsigned char * " cls ", int * " len ", unsigned long * " tag ");"
.SH ARGUMENTS
.IP "const unsigned char * der" 12
DER data to decode.
.IP "int der_len" 12
Length of DER data to decode.
.IP "unsigned char * cls" 12
Output variable containing decoded class.
.IP "int * len" 12
Output variable containing the length of the DER TAG data.
.IP "unsigned long * tag" 12
Output variable containing the decoded tag (may be \fBNULL\fP).
.SH "DESCRIPTION"
Decode the class and TAG from DER code.
.SH "RETURNS"
Returns \fBASN1_SUCCESS\fP on success, or an error.
.SH COPYRIGHT
Copyright \(co 2006-2022 Free Software Foundation, Inc..
.br
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
.SH "SEE ALSO"
The full documentation for
.B libtasn1
is maintained as a Texinfo manual.  If the
.B info
and
.B libtasn1
programs are properly installed at your site, the command
.IP
.B info libtasn1
.PP
should give you access to the complete manual.
As an alternative you may obtain the manual from:
.IP
.B https://www.gnu.org/software/libtasn1/manual/
.PP