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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 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:

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

libtasn1			      4.8		   asn1_write_value(3)

NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | INTEGER | ENUMERATED | BOOLEAN | UTCTIME | GENERALIZEDTIME | GENERALSTRING | CHOICE | ANY | RETURNS | COPYRIGHT | SEE ALSO

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