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asn1_write_value(3) libtasn1 asn1_write_value(3)
NAME
asn1_write_value - Set the value of one element inside a structure.
SYNOPSIS
#include <libtasn1.h>
asn1_retCode asn1_write_value(ASN1_TYPE node_root, const char * name, const void * ivalue,
int len);
ARGUMENTS
ASN1_TYPE node_root
pointer to a structure
const char * name
the name of the element inside the structure that you want to set.
const void * ivalue
vector used to specify the value to set. If len is >0, VALUE must be a two's
complement form integer. if len=0 *VALUE must be a null terminated string
with an integer value.
int len number of bytes of *value to use to set the value: value[0]..value[len-1] or 0
if value is a null terminated string
DESCRIPTION
Set the value of one element inside a structure.
If an element is OPTIONAL and you want to delete it, you must use the value=NULL and
len=0. Using "pkix.asn":
result=asn1_write_value(cert, "tbsCertificate.issuerUniqueID", NULL, 0);
DESCRIPTION FOR EACH TYPE
INTEGER
VALUE must contain a two's complement form integer.
value[0]=0xFF , len=1 -> integer=-1. value[0]=0xFF value[1]=0xFF , len=2 ->
integer=-1. value[0]=0x01 , len=1 -> integer= 1. value[0]=0x00
value[1]=0x01 , len=2 -> integer= 1. value="123" , len=0 -> integer= 123.
ENUMERATED
As INTEGER (but only with not negative numbers).
BOOLEAN
VALUE must be the null terminated string "TRUE" or "FALSE" and LEN != 0.
value="TRUE" , len=1 -> boolean=TRUE. value="FALSE" , len=1 -> boolean=FALSE.
OBJECT IDENTIFIER
VALUE must be a null terminated string with each number separated by a dot (e.g.
"1.2.3.543.1"). LEN != 0.
value="1 2 840 10040 4 3" , len=1 -> OID=dsa-with-sha.
UTCTIME
VALUE must be a null terminated string in one of these formats: "YYMMDDhhmmssZ", "YYMMD-
DhhmmssZ", "YYMMDDhhmmss+hh'mm'", "YYMMDDhhmmss-hh'mm'", "YYMMDDhhmm+hh'mm'", or "YYMMD-
Dhhmm-hh'mm'". LEN != 0.
value="9801011200Z" , len=1 -> time=Jannuary 1st, 1998 at 12h 00m Greenwich Mean Time
GENERALIZEDTIME
VALUE must be in one of this format: "YYYYMMDDhhmmss.sZ", "YYYYMMDDhhmmss.sZ", "YYYYMMD-
Dhhmmss.s+hh'mm'", "YYYYMMDDhhmmss.s-hh'mm'", "YYYYMMDDhhmm+hh'mm'", or
"YYYYMMDDhhmm-hh'mm'" where ss.s indicates the seconds with any precision like "10.1" or
"01.02". LEN != 0
value="2001010112001.12-0700" , len=1 -> time=Jannuary 1st, 2001 at 12h 00m 01.12s Pacific
Daylight Time
OCTET STRING
VALUE coctains tce octetcstring and LEN is the number of octets.
k k k
value="$ssh$x01$ssh$x02$ssh$x03" , len=3 -> three bytes octet string
l l l
GENERALSTRING
VALUE coctains tce generclstring and LEN is the number of octets.
k k k
value="$ssh$x01$ssh$x02$ssh$x03" , len=3 -> three bytes generalstring
l l l
BIT STRING
VALUE coctains the bit string organized by bytes and LEN is the number of bits.
k
value="$ssh$xCF" , len=6 -> bit string="110011" (six bits)
l
CHOICE
if NAME indicates a choice type, VALUE must specify one of the alternatives with a null
terminated string. LEN != 0. Using "pkix.asn"
result=asn1_write_value(cert, "certificate1.tbsCertificate.subject", "rdnSequence", 1);
ANY
VALUE indicates the der encoding of a structure. LEN != 0.
SEQUENCE OF
VALUE must be the null terminated string "NEW" and LEN != 0. With this instruction another
element is appended in the sequence. The name of this element will be "?1" if it's the
first one, "?2" for the second and so on.
Using "pkix.asn"
result=asn1_write_value(cert, "certificate1.tbsCertificate.subject.rdnSequence", "NEW",
1);
SET OF
the same as SEQUENCE OF. Using "pkix.asn":
result=asn1_write_value(cert, "tbsCertificate.subject.rdnSequence.?LAST", "NEW", 1);
RETURNS
ASN1_SUCCESS
Set value OK.
ASN1_ELEMENT_NOT_FOUND
NAME is not a valid element.
ASN1_VALUE_NOT_VALID
VALUE has a wrong format.
COPYRIGHT
Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc..
Permission is granted to make and distribute verbatim copies of this manual provided the
copyright notice and this permission notice are preserved on all copies.
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.
libtasn1 1.4 asn1_write_value(3)
Generated by $Id: phpMan.php,v 4.49 2006/02/26 13:18:18 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2012-05-25 17:40 @38.107.179.238 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)