C Runtime Common Functions

Classes
struct	ASN1OctStr
struct	ASN1DynBitStr
struct	ASN1DynBitStr64
struct	ASN1BitStr32
struct	ASN1SeqOf
struct	ASN1SeqOfOctStr
struct	ASN1OpenType
struct	Asn1Object
struct	Asn116BitCharString
struct	Asn132BitCharString
struct	Asn1CharArray
struct	Asn1CharSet
struct	Asn116BitCharSet
struct	Asn132BitCharSet
struct	ASN1BigInt
struct	ASN1CCB
Modules
	Object Identifier Helper Functions
	Time Helper Functions
	Character String Conversion Functions
	Comparison Functions
	Comparison to Standard Output Functions
	Copy Functions
	Print values to text buffer functions.
Defines
#define	XM_SEEK 0x01
#define	XM_ADVANCE 0x02
#define	XM_DYNAMIC 0x04
#define	XM_SKIP 0x08
#define	XM_OPTIONAL 0x10
#define	ASN_K_MAXDEPTH 32
#define	ASN_K_MAXENUM 100
#define	ASN_K_MAXERRP 5
#define	ASN_K_MAXERRSTK 8
#define	ASN_K_ENCBUFSIZ 16*1024
#define	ASN_K_MEMBUFSEG 1024
#define	OSRTINDENTSPACES 3
#define	ASN1_K_PLUS_INFINITY 0x40
#define	ASN1_K_MINUS_INFINITY 0x41
#define	REAL_BINARY 0x80
#define	REAL_SIGN 0x40
#define	REAL_EXPLEN_MASK 0x03
#define	REAL_EXPLEN_1 0x00
#define	REAL_EXPLEN_2 0x01
#define	REAL_EXPLEN_3 0x02
#define	REAL_EXPLEN_LONG 0x03
#define	REAL_FACTOR_MASK 0x0c
#define	REAL_BASE_MASK 0x30
#define	REAL_BASE_2 0x00
#define	REAL_BASE_8 0x10
#define	REAL_BASE_16 0x20
#define	REAL_ISO6093_MASK 0x3F
#define	ASN1REALMAX (OSREAL)DBL_MAX
#define	ASN1REALMIN (OSREAL)-DBL_MAX
#define	ASN1DynOctStr OSDynOctStr
#define	OSSETBIT(bitStr, bitIndex) rtxSetBit (bitStr.data, bitStr.numbits, bitIndex)
#define	OSSETBITP(pBitStr, bitIndex) rtxSetBit ((pBitStr)->data, (pBitStr)->numbits, bitIndex)
#define	OSCLEARBIT(bitStr, bitIndex) rtxClearBit (bitStr.data, bitStr.numbits, bitIndex)
#define	OSCLEARBITP(pBitStr, bitIndex) rtxClearBit ((pBitStr)->data, (pBitStr)->numbits, bitIndex)
#define	OSTESTBIT(bitStr, bitIndex) rtxTestBit (bitStr.data, bitStr.numbits, bitIndex)
#define	OSTESTBITP(pBitStr, bitIndex) rtxTestBit ((pBitStr)->data, (pBitStr)->numbits, bitIndex)
#define	ASN1_K_CCBMaskSize 32
#define	ASN1_K_NumBitsPerMask 16
#define	ASN1_K_MaxSetElements (ASN1_K_CCBMaskSize*ASN1_K_NumBitsPerMask)
#define	ASN1NUMOCTS(nbits) ((nbits>0)?(((nbits-1)/8)+1):0)
Typedefs
typedef void *	ASN1ANY
typedef Asn1Object	ASN1Object
typedef OSUNICHAR	ASN116BITCHAR
typedef const char *	ASN1GeneralizedTime
typedef const char *	ASN1GeneralString
typedef const char *	ASN1GraphicString
typedef const char *	ASN1IA5String
typedef const char *	ASN1ISO646String
typedef const char *	ASN1NumericString
typedef const char *	ASN1ObjectDescriptor
typedef const char *	ASN1PrintableString
typedef const char *	ASN1TeletexString
typedef const char *	ASN1T61String
typedef const char *	ASN1UTCTime
typedef const char *	ASN1VideotexString
typedef const char *	ASN1VisibleString
typedef const OSUTF8CHAR *	ASN1UTF8String
typedef Asn116BitCharString	ASN1BMPString
typedef Asn132BitCharString	ASN1UniversalString
typedef struct ASN1BigInt	ASN1BigInt
typedef int(*	ASN1DumpCbFunc )(const char text_p, void cbArg_p)
Enumerations
enum	ASN1StrType { ASN1HEX, ASN1BIN, ASN1CHR }
enum	ASN1ActionType { ASN1ENCODE, ASN1DECODE }

#define	ALLOC_ASN1ARRAY(pctxt, pseqof, type)
#define	ALLOC_ASN1ARRAY1(pctxt, pseqof, type)

Detailed Description

The C run-time common library contains common C functions used by the low-level encode/decode functions. These functions are identified by their rt and rtx prefixes.

The categories of functions provided are as follows:

Context management functions handle the allocation, initialization, and destruction of context variables (variables of type OSCTXT) that handle the working data used during the encoding or decoding of a message.
Memory allocation macros and functions provide an optimized memory management interface.
Doubly linked list (DList) functions are used to manipulate linked list structures that are used to model repeating XSD types and elements.
UTF-8 and Unicode character string functions provide support for conversions to and from these formats in C or C++.
Date/time conversion functions provide utilities for converting system and structured numeric date/time values to XML schema standard string format.
Pattern matching function compare strings against patterns specified using regular expressions (regexp's).
Diagnostic trace functions allow the output of trace messages to standard output.
Error formatting and print functions allow information about encode/decode errors to be added to a context block structure and printed out.
Memory buffer management functions handle the allocation, expansion, and de-allocation of dynamic memory buffers used by some encode/decode functions.
Formatted print functions allow binary data to be formatted and printed to standard output and other output devices.
Big Integer helper functions are arbitrary-precision integer manipulating functions used to maintain big integers.

Define Documentation

#define ALLOC_ASN1ARRAY	(	pctxt,
		pseqof,
		type	)

Value:

do {\
if (sizeof(type)*(pseqof)->n < (pseqof)->n) return RTERR_NOMEM; \
if (((pseqof)->elem = (type*) rtxMemHeapAllocZ \
(&(pctxt)->pMemHeap, sizeof(type)*(pseqof)->n)) == 0) return RTERR_NOMEM; \
} while (0)

Memory allocation functions and macros handle memory management for the ASN1C run-time. Special algorithms are used for allocation and deallocation of memory to improve the run-time performance. Allocate a dynamic array. This macro allocates a dynamic array of records of the given type. This version of the macro will return the RTERR_NOMEM error status if the memory request cannot be fulfilled.

Parameters:

	pctxt	- Pointer to a context block
	pseqof	- Pointer to a generated SEQUENCE OF array structure. The n member variable must be set to the number of records to allocate.
	type	- Data type of an array record

#define ALLOC_ASN1ARRAY1	(	pctxt,
		pseqof,
		type	)

Value:

do {\
if (sizeof(type)*(pseqof)->n < (pseqof)->n) (pseqof)->elem = 0; \
else (pseqof)->elem = (type*) rtxMemHeapAllocZ \
(&(pctxt)->pMemHeap, sizeof(type)*(pseqof)->n); \
} while (0)

Allocate a dynamic array. This macro allocates a dynamic array of records of the given type. This version of the macro will set the internal parameters of the SEQUENCE OF structure to NULL if the memory request cannot be fulfilled.

Parameters:

	pctxt	- Pointer to a context block
	pseqof	- Pointer to a generated SEQUENCE OF array structure. The n member variable must be set to the number of records to allocate.
	type	- Data type of an array record

#define ASN1_K_CCBMaskSize 32

The maximum size for the context control block mask.

#define ASN1_K_MaxSetElements (ASN1_K_CCBMaskSize*ASN1_K_NumBitsPerMask)

The maximum number of set elements that can be handled by the CCB.

#define ASN1_K_MINUS_INFINITY 0x41

The ASN.1 Real value Minus Infinity.

#define ASN1_K_NumBitsPerMask 16

The number of bits that can be set per mask.

#define ASN1_K_PLUS_INFINITY 0x40

The ASN.1 Real value Plus Infinity.

#define ASN1DynOctStr OSDynOctStr

We define ASN1DynOctStr to be the common generic OSDynOctStr type.

#define ASN_K_ENCBUFSIZ 16*1024

dynamic encode buffer extent size

#define ASN_K_MAXDEPTH 32

maximum nesting depth for messages

#define ASN_K_MAXENUM 100

maximum enum values in an enum type

#define ASN_K_MAXERRP 5

maximum error parameters

#define ASN_K_MAXERRSTK 8

maximum levels on error ctxt stack

#define ASN_K_MEMBUFSEG 1024

memory buffer extent size

#define OSCLEARBIT	(	bitStr,
		bitIndex		)	rtxClearBit (bitStr.data, bitStr.numbits, bitIndex)

This macro clears the given bit in the given static bit string.

Parameters:

	bitStr	The bit string to manipulate.
	bitIndex	The index to clear.

#define OSCLEARBITP	(	pBitStr,
		bitIndex		)	rtxClearBit ((pBitStr)->data, (pBitStr)->numbits, bitIndex)

This macro clears the given bit in the given dynamic bit string.

Parameters:

	pBitStr	The pointer-to-bit string to manipulate.
	bitIndex	The index to clear.

#define OSRTINDENTSPACES 3

number of spaces for indent

#define OSSETBIT	(	bitStr,
		bitIndex		)	rtxSetBit (bitStr.data, bitStr.numbits, bitIndex)

This macro sets the given bit in the given static bit string.

Parameters:

	bitStr	The bit string to manipulate.
	bitIndex	The index to set.

#define OSSETBITP	(	pBitStr,
		bitIndex		)	rtxSetBit ((pBitStr)->data, (pBitStr)->numbits, bitIndex)

This macro sets the given bit in the given dynamic bit string.

Parameters:

	pBitStr	A pointer-to-bit string to manipulate.
	bitIndex	The index to set.

#define OSTESTBIT	(	bitStr,
		bitIndex		)	rtxTestBit (bitStr.data, bitStr.numbits, bitIndex)

This macro tests the given bit in the given static bit string.

Parameters:

	bitStr	The bit string to manipulate.
	bitIndex	The index to test.

Returns:: TRUE if the bit is on; FALSE if the bit is off.

#define OSTESTBITP	(	pBitStr,
		bitIndex		)	rtxTestBit ((pBitStr)->data, (pBitStr)->numbits, bitIndex)

This macro tests the given bit in the given dynamic bit string.

Parameters:

	pBitStr	The pointer-to-bit string to manipulate.
	bitIndex	The index to set.

#define XM_ADVANCE 0x02

advance pointer to contents on match

#define XM_DYNAMIC 0x04

alloc dyn mem for decoded variable

#define XM_OPTIONAL 0x10

tag test is for optional element

#define XM_SEEK 0x01

seek match until found or end-of-buf

#define XM_SKIP 0x08

skip to next field after parsing tag

Typedef Documentation

typedef struct ASN1BigInt ASN1BigInt

A structure used to define an ASN.1 big integer. This structure is rarely, if ever, used by client code, and will instead be used by generated code to facilitate encoding and decoding integer values that cannot fit in normal C/C++ integer types.

typedef int(* ASN1DumpCbFunc)(const char *text_p, void *cbArg_p)

ASN.1 dump utility callback function definition

Enumeration Type Documentation

enum ASN1ActionType

An enumerated list of ASN.1 actions: encode or decode.

enum ASN1StrType

An enumerated list of the various string types: hexadecimal, binary, and character strings.

C Runtime Common Functions

Classes

Modules

Defines

Typedefs

Enumerations

Detailed Description

Define Documentation

Typedef Documentation

Enumeration Type Documentation