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Updated: Thursday, June 13, 2019
 
 

asn1_write_value (3)

Name

asn1_write_value - API function

Synopsis

#include <libtasn1.h>

int asn1_write_value(asn1_node node_root, const char * name, const void
* ivalue, int len);

Description

asn1_write_value(3)                libtasn1                asn1_write_value(3)



NAME
       asn1_write_value - API function

SYNOPSIS
       #include <libtasn1.h>

       int asn1_write_value(asn1_node node_root, const char * name, const void
       * ivalue, int len);

ARGUMENTS
       asn1_node 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  ->  bool-
       ean=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: "YYMMD-
       DhhmmssZ",     "YYMMDDhhmmssZ",    "YYMMDDhhmmss+hh'mm'",    "YYMMDDhh-
       mmss-hh'mm'", "YYMMDDhhmm+hh'mm'", or "YYMMDDhhmm-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", "YYYYMMDDhh-
       mmss.sZ", "YYYYMMDDhhmmss.s+hh'mm'", "YYYYMMDDhhmmss.s-hh'mm'", "YYYYM-
       MDDhhmm+hh'mm'", or "YYYYMMDDhhmm-hh'mm'" where ss.s indicates the sec-
       onds 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 contains the octet string and LEN is the number of
       octets. c       c       c
               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 contains the bit string organized by bytes and LEN is
       the numbcr 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 alterna-
       tives 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.sub-
       ject.rdnSequence", "NEW", 1);

       SET OF: the same as SEQUENCE OF.  Using "pkix.asn":

       result=asn1_write_value(cert,            "tbsCertificate.subject.rdnSe-
       quence.?LAST", "NEW", 1);

RETURNS
       ASN1_SUCCESS if the value was set, ASN1_ELEMENT_NOT_FOUND if   name  is
       not  a  valid  element, and ASN1_VALUE_NOT_VALID if  ivalue has a wrong
       format.

COPYRIGHT
       Copyright (C) 2006-2015 Free Software Foundation, Inc..
       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.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | library/libtasn1 |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
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:

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

NOTES
       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source   was   downloaded  from   https://ftp.gnu.org/gnu/libtasn1/lib-
       tasn1-4.13.tar.gz

       Further information about this software can be found on the open source
       community website at https://www.gnu.org/software/libtasn1.



libtasn1                              4.8                  asn1_write_value(3)