asn1_der_decoding2(3) libtasn1 asn1_der_decoding2(3)
NAME
asn1_der_decoding2 - API function
SYNOPSIS
#include <libtasn1.h>
int asn1_der_decoding2(asn1_node * element, const void * ider, int *
max_ider_len, unsigned int flags, char * errorDescription);
ARGUMENTS
asn1_node * element
pointer to an ASN1 structure.
const void * ider
vector that contains the DER encoding.
int * max_ider_len
pointer to an integer giving the information about the max-
imal number of bytes occupied by * ider . The real size of
the DER encoding is returned through this pointer.
unsigned int flags
flags controlling the behaviour of the function.
char * errorDescription
null-terminated string contains details when an error oc-
curred.
DESCRIPTION
Fill the structure * element with values of a DER encoding string. The
structure must just be created with function asn1_create_element().
If ASN1_DECODE_FLAG_ALLOW_PADDING flag is set then the function will
ignore padding after the decoded DER data. Upon a successful return the
value of * max_ider_len will be set to the number of bytes decoded.
If ASN1_DECODE_FLAG_STRICT_DER flag is set then the function will not
decode any BER-encoded elements.
RETURNS
ASN1_SUCCESS if DER encoding OK, ASN1_ELEMENT_NOT_FOUND if ELEMENT is
NULL, and ASN1_TAG_ERROR or ASN1_DER_ERROR if the der encoding doesn't
match the structure name (* ELEMENT deleted).
COPYRIGHT
Copyright © 2006-2022 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 4.19.0 asn1_der_decoding2(3)
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