asn1_write_value man page on Archlinux

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asn1_write_value(3)		   libtasn1		   asn1_write_value(3)

       asn1_write_value - API function

       #include <libtasn1.h>

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

       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

       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

       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,

       Description for each type:

       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.

       As INTEGER (but only with not negative numbers).

       VALUE  must  be the null terminated string "TRUE" or "FALSE" and LEN !=

       value="TRUE" , len=1 -> boolean=TRUE.  value="FALSE" , len=1  ->	 bool‐

       OBJECT  IDENTIFIER:  VALUE  must	 be a null terminated string with each
       number separated by a dot (e.g. "").	LEN != 0.

       value="1 2 840 10040 4 3" , len=1 -> OID=dsa-with-sha.

       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

       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
       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.
       value="$ssh$xCF" , len=6 -> bit string="110011" (six bits)
       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);

       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);

       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

       Copyright © 2006-2013 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.

       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:

libtasn1			      3.4		   asn1_write_value(3)

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