Object Identifier Helper Functions

Classes
struct	ASN1OBJID
struct	ASN1OID64

Macros
#define	ASN_K_MAXSUBIDS   128 /* maximum sub-id's in an object ID */

Functions
void	rtSetOID (ASN1OBJID *ptarget, ASN1OBJID *psource)
void	rtAddOID (ASN1OBJID *ptarget, ASN1OBJID *psource)
OSBOOL	rtOIDsEqual (const ASN1OBJID *pOID1, const ASN1OBJID *pOID2)
int	rtOIDParseString (const char *oidstr, OSSIZE oidstrlen, ASN1OBJID *pvalue)
int	rtRelOIDParseString (const char *oidstr, OSSIZE oidstrlen, ASN1OBJID *pvalue)
int	rtOIDParseDottedNumberString (const char *oidstr, OSSIZE oidstrlen, ASN1OBJID *pvalue)
OSBOOL	rtOIDIsValid (const ASN1OBJID *pvalue)

Detailed Description

Object identifier helper functions provide assistance in working with the object identifier ASN.1 type.

Function Documentation

rtAddOID()

void rtAddOID	(	ASN1OBJID *	ptarget,
		ASN1OBJID *	psource
	)

This function appends one object identifier to another one. It copies the data from a source variable to the end of a target variable. Typically, the source variable is a compiler-generated object identifier constant that resulted from an object identifier value specification within an ASN.1 specification.

Parameters

ptarget	A pointer to a target object identifier variable to receive object identifier data. Typically, this is a variable within a compiler-generated C structure.
psource	A pointer to a source object identifier variable to copy to a target. Typically, this is a compiler-generated variable corresponding to an ASN.1 value specification in the ASN.1 source file.

rtOIDIsValid()

OSBOOL rtOIDIsValid

(

const ASN1OBJID *

pvalue

)

This function determine if an OID value is valid according to ASN.1 rules. In particular it checks a) if number of subidentifiers is greater than or equal to 2, b) if the first subidentifier value is less than or equal to 2, and c) if the first subidentifier is 2 that the second subidentifier is less than 40.

Parameters

pvalue

Pointer to OID value to validate.

Returns

True if OID value is valid.

rtOIDParseDottedNumberString()

int rtOIDParseDottedNumberString	(	const char *	oidstr,
		OSSIZE	oidstrlen,
		ASN1OBJID *	pvalue
	)

This function parses an OID dotted number string (n.n.n) which is the from of OID XML content. Data must be in the form of numbers and dots only (i.e. OID components in other forms such as names or named number will cause a parse failure). Embedded whitespace will be ignored.

Parameters

oidstr	OID string containing data to be parsed.
oidstrlen	Length of the string.
pvalue	Pointer to OID value to receive parsed OID.

Returns

Status of operation: 0 = success, negative value is failure.

rtOIDParseString()

int rtOIDParseString	(	const char *	oidstr,
		OSSIZE	oidstrlen,
		ASN1OBJID *	pvalue
	)

This function parses an OID that is an XMLObjectIdentifierValue. Components that use only a name can be converted if that form was used as permitted by X.680 & X.660. Leading and trailing whitespace is ignored. This also validates the resulting ASN1OBJID using rtOIDIsValid.

Parameters

oidstr	OID string containing data to be parsed.
oidstrlen	Length of the string.
pvalue	Pointer to OID value to receive parsed OID.

Returns

Status of operation: 0 = success, negative value is failure.

rtOIDsEqual()

OSBOOL rtOIDsEqual	(	const ASN1OBJID *	pOID1,
		const ASN1OBJID *	pOID2
	)

This function compares two OID values for equality.

Parameters

pOID1	Pointer to first OID value to compare.
pOID2	Pointer to second OID value to compare.

Returns

True if OID's are equal.

rtRelOIDParseString()

int rtRelOIDParseString	(	const char *	oidstr,
		OSSIZE	oidstrlen,
		ASN1OBJID *	pvalue
	)

This function parses an OID that is an XMLRelativeOIDValue. Name-only components are not supported. Leading and trailing whitespace is ignored.

Parameters

oidstr	OID string containing data to be parsed.
oidstrlen	Length of the string.
pvalue	Pointer to OID value to receive parsed OID.

Returns

Status of operation: 0 = success, negative value is failure.

rtSetOID()

void rtSetOID	(	ASN1OBJID *	ptarget,
		ASN1OBJID *	psource
	)

This function populates an object identifier variable with data. It copies data from a source variable to a target variable. Typically, the source variable is a compiler-generated object identifier constant that resulted from a object identifier value specification within an ASN.1 specification.

Parameters

ptarget	A pointer to a target object identifier variable to receive object * identifier data. Typically, this is a variable within a compiler-generated C structure.
psource	A pointer to a source object identifier variable to copy to a target. Typically, this is a compiler-generated variable corresponding to an ASN.1 value specification in the ASN.1 source file.