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asn1_get_length_der(3)		   libtasn1		asn1_get_length_der(3)

NAME
       asn1_get_length_der - API function

SYNOPSIS
       #include	<libtasn1.h>

       long  asn1_get_length_der(const unsigned	char * der, int	der_len, int *
       len);

ARGUMENTS
       const unsigned char * der
		   DER data to decode.

       int der_len Length of DER data to decode.

       int * len   Output variable containing the length  of  the  DER	length
		   field.

DESCRIPTION
       Extract a length	field from DER data.

RETURNS
       Return the decoded length value,	or -1 on indefinite length, or -2 when
       the  value  was	too big	to fit in a int, or -4 when the	decoded	length
       value plus  len would exceed  der_len .

COPYRIGHT
       Copyright (C) 2006-2025 Free Software Foundation, Inc..
       Copying and distribution	of this	file, with  or	without	 modification,
       are  permitted in any medium without royalty provided the copyright no-
       tice and	this notice are	preserved.

SEE ALSO
       The full	documentation for libtasn1 is maintained as a Texinfo  manual.
       If  the info and	libtasn1 programs are properly installed at your site,
       the command

	      info libtasn1

       should give you access to the complete manual.  As an  alternative  you
       may obtain the manual from:

	      https://www.gnu.org/software/libtasn1/manual/

libtasn1			    4.20.0		asn1_get_length_der(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=asn1_get_length_der&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

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