asn1ber.h

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00001 /*
00002  * Copyright (c) 1997-2014 Objective Systems, Inc.
00003  *
00004  * This software is furnished under a license and may be used and copied
00005  * only in accordance with the terms of such license and with the
00006  * inclusion of the above copyright notice. This software or any other
00007  * copies thereof may not be provided or otherwise made available to any
00008  * other person. No title to and ownership of the software is hereby
00009  * transferred.
00010  *
00011  * The information in this software is subject to change without notice
00012  * and should not be construed as a commitment by Objective Systems, Inc.
00013  *
00014  * PROPRIETARY NOTICE
00015  *
00016  * This software is an unpublished work subject to a confidentiality agreement
00017  * and is protected by copyright and trade secret law.  Unauthorized copying,
00018  * redistribution or other use of this work is prohibited.
00019  *
00020  * The above notice of copyright on this source code product does not indicate
00021  * any actual or intended publication of such source code.
00022  *
00023  *****************************************************************************/
00024 /*  CHANGE LOG */
00025 /*  Date         Init    Description */
00026 /*  05/03/02     AB      Initial issue */
00027 /*  05/06/02     AB      More only-BER things moved */
00028 /*  05/10/02     AB      RELATIVE-OID */
00029 /*  10/17/02     ED      Inline buffer save and restore macros */
00030 /*  10/26/02     AB      UInt64 encode/decode funcs added */
00031 /*  01/18/03    ED      Added more Doxygen comments */
00032 /*  10/29/03     CZ      Added doxygen code for mainpage text. */
00033 /*  */
00034 /* ////////////////////////////////////////////////////////////////////////// */
00082 #ifndef _ASN1BER_H_
00083 #define _ASN1BER_H_
00084 
00085 #include "rtsrc/asn1type.h"
00086 
00087 #define ASN_K_INDEFLEN   -9999   /* indefinite length message indicator  */
00088 
00089 #define XU_DUMP(msg)                xu_dump(msg,0,0)
00090 #define xd_resetp(pctxt)            rtxResetContext(pctxt)
00091 
00092 #define ASN1TAG2BYTE(tag) \
00093 ((OSOCTET)(((tag)&TM_B_IDCODE)|((tag)>>ASN1TAG_LSHIFT)))
00094 
00099 typedef struct _Asn1BufLocDescr {
00100    OSUINT32 numocts;
00101    OSINT32  offset;
00102 } Asn1BufLocDescr;
00103 
00104 #ifdef __cplusplus
00105 extern "C" {
00106 
00107 #endif
00108 
00109 #ifndef EXTERNBER
00110 #ifdef BUILDASN1BERDLL
00111 #define EXTERNBER __declspec(dllexport)
00112 #elif defined (USEASN1BERDLL)
00113 #define EXTERNBER __declspec(dllimport)
00114 #else
00115 #define EXTERNBER
00116 #endif /* BUILDASN1BERDLL */
00117 #endif /* EXTERNBER */
00118 
00119 /* decode functions */
00152 EXTERNBER int xd_tag (OSCTXT* pctxt, ASN1TAG *tag_p);
00153 
00174 EXTERNBER int xd_tag_len (OSCTXT *pctxt, ASN1TAG *tag_p,
00175                           int *len_p, OSOCTET flags);
00176 
00201 EXTERNBER int xd_match (OSCTXT *pctxt, ASN1TAG tag,
00202                         int *len_p, OSOCTET flags);
00203 
00229 EXTERNBER int xd_boolean (OSCTXT *pctxt, OSBOOL *object_p,
00230                           ASN1TagType tagging, int length);
00231 
00255 EXTERNBER int xd_integer (OSCTXT *pctxt, OSINT32 *object_p,
00256                           ASN1TagType tagging, int length);
00257 
00275 EXTERNBER int xd_int8 (OSCTXT *pctxt, OSINT8 *object_p,
00276                        ASN1TagType tagging, int length);
00277 
00295 EXTERNBER int xd_int16 (OSCTXT *pctxt, OSINT16 *object_p,
00296                         ASN1TagType tagging, int length);
00297 
00322 EXTERNBER int xd_unsigned (OSCTXT *pctxt, OSUINT32 *object_p,
00323                            ASN1TagType tagging, int length);
00324 
00343 EXTERNBER int xd_uint8 (OSCTXT *pctxt, OSUINT8 *object_p,
00344                         ASN1TagType tagging, int length);
00345 
00364 EXTERNBER int xd_uint16 (OSCTXT *pctxt, OSUINT16 *object_p,
00365                          ASN1TagType tagging, int length);
00366 
00387 EXTERNBER int xd_int64 (OSCTXT *pctxt, OSINT64 *object_p,
00388                         ASN1TagType tagging, int length);
00389 
00411 EXTERNBER int xd_uint64 (OSCTXT *pctxt, OSUINT64 *object_p,
00412                          ASN1TagType tagging, int length);
00413 
00443 EXTERNBER int xd_bigint (OSCTXT *pctxt, const char** object_p,
00444                          ASN1TagType tagging, int length);
00445 
00473 EXTERNBER int xd_bitstr_s (OSCTXT *pctxt, OSOCTET* object_p,
00474                            OSUINT32* numbits_p, ASN1TagType tagging,
00475                            int length);
00476 
00499 EXTERNBER int xd_bitstr (OSCTXT *pctxt, const OSOCTET** object_p2,
00500                          OSUINT32* numbits_p, ASN1TagType tagging, int length);
00501 
00521 EXTERNBER int xd_octstr_s (OSCTXT *pctxt, OSOCTET* object_p,
00522                            OSUINT32* pnumocts, ASN1TagType tagging,
00523                            int length);
00524 
00544 EXTERNBER int xd_octstr (OSCTXT *pctxt, const OSOCTET** object_p2,
00545                          OSUINT32* pnumocts, ASN1TagType tagging, int length);
00546 
00568 EXTERNBER int xd_charstr (OSCTXT* pctxt, const char** object_p,
00569                           ASN1TagType tagging, ASN1TAG tag, int length);
00570 
00591 EXTERNBER int berDecCharArray (OSCTXT* pctxt, char* charArray,
00592                                OSSIZE arraySize, ASN1TagType tagging,
00593                                ASN1TAG tag, int length);
00594 
00615 #define xd_utf8str(pctxt,object_p,tagging,length) \
00616 xd_charstr (pctxt, (const char**)object_p, tagging, ASN_ID_UTF8String, length)
00617 
00640 EXTERNBER int xd_16BitCharStr (OSCTXT* pctxt, Asn116BitCharString* object_p,
00641                                ASN1TagType tagging, ASN1TAG tag, int length);
00642 
00665 EXTERNBER int xd_32BitCharStr (OSCTXT* pctxt, Asn132BitCharString* object_p,
00666                                ASN1TagType tagging, ASN1TAG tag, int length);
00667 
00682 EXTERNBER int xd_null (OSCTXT *pctxt, ASN1TagType tagging);
00683 
00700 EXTERNBER int xd_objid (OSCTXT *pctxt, ASN1OBJID *object_p,
00701                         ASN1TagType tagging, int length);
00702 
00720 EXTERNBER int xd_oid64 (OSCTXT *pctxt, ASN1OID64 *object_p,
00721                         ASN1TagType tagging, int length);
00722 
00739 EXTERNBER int xd_reloid (OSCTXT *pctxt, ASN1OBJID *object_p,
00740                          ASN1TagType tagging, int length);
00741 
00757 EXTERNBER int xd_real (OSCTXT *pctxt, OSREAL *object_p,
00758                        ASN1TagType tagging, int length);
00759 
00775 EXTERNBER int xd_enum (OSCTXT *pctxt, OSINT32 *object_p,
00776                        ASN1TagType tagging, int length);
00777 
00793 EXTERNBER int xd_enumUnsigned (OSCTXT *pctxt, OSUINT32 *object_p,
00794                        ASN1TagType tagging, int length);
00795 
00811 EXTERNBER int xd_OpenType (OSCTXT *pctxt, const OSOCTET** object_p2,
00812                            OSUINT32* pnumocts);
00813 
00833 EXTERNBER int xd_OpenTypeExt (OSCTXT* pctxt, ASN1CCB* ccb_p, ASN1TAG tag,
00834                               OSRTDList *pElemList);
00835 
00848 EXTERNBER int xd_OpenTypeAppend (OSCTXT *pctxt, OSRTDList *pElemList);
00849 
00865 EXTERNBER int xd_real10 (OSCTXT *pctxt, const char** object_p,
00866                          ASN1TagType tagging, int length);
00867 
00898 EXTERNBER int xd_setp (OSCTXT *pctxt, const OSOCTET* msg_p,
00899                        int msglen, ASN1TAG *tag_p, int *len_p);
00900 
00908 EXTERNBER int xd_indeflen_ex (const OSOCTET* msg_p, int bufSize);
00909 
00910 /* Backward compatibility macro */
00911 #define xd_indeflen(m) xd_indeflen_ex(m, INT_MAX)
00912 
00924 EXTERNBER int xd_len (OSCTXT *pctxt, int *len_p);
00925 
00940 EXTERNBER int xd_chkend (OSCTXT *pctxt, ASN1CCB* ccb_p);
00941 
00953 EXTERNBER int xd_count (OSCTXT *pctxt, int length, int *count_p);
00954 
00963 EXTERNBER int xd_NextElement (OSCTXT* pctxt);
00964 
00979 EXTERNBER int xd_Tag1AndLen (OSCTXT* pctxt, OSINT32* len_p);
00980 
00981 /* internal decode function to do memory copies */
00996 EXTERNBER int xd_memcpy (OSCTXT* pctxt, OSOCTET *object_p, int length) ;
00997 
01016 EXTERNBER int xd_match1 (OSCTXT *pctxt, OSOCTET tag, int *len_p);
01017 
01018 
01021 /* file decode functions */
01022 
01058 EXTERNBER int xdf_tag (FILE* fp, ASN1TAG* ptag, OSOCTET* buffer, int* pbufidx);
01059 
01078 EXTERNBER int xdf_len (FILE* fp, OSINT32* plen, OSOCTET* buffer, int* pbufidx);
01079 
01100 EXTERNBER int xdf_TagAndLen (FILE* fp, ASN1TAG* ptag, OSINT32* plen,
01101                              OSOCTET* buffer, int* pbufidx);
01102 
01124 EXTERNBER int xdf_ReadPastEOC (FILE* fp, OSOCTET* buffer,
01125                                int bufsiz, int* pbufidx);
01126 
01150 EXTERNBER int xdf_ReadContents (FILE* fp, int len, OSOCTET* buffer,
01151                                 int bufsiz, int* pbufidx);
01156 /* encode functions */
01204 EXTERNBER int xe_tag_len (OSCTXT *pctxt, ASN1TAG tag, int length) ;
01205 
01229 EXTERNBER int xe_boolean (OSCTXT* pctxt, OSBOOL* object_p,
01230                           ASN1TagType tagging);
01231 
01252 EXTERNBER int xe_integer (OSCTXT* pctxt, int *object_p, ASN1TagType tagging);
01253 
01275 EXTERNBER int xe_unsigned (OSCTXT* pctxt, OSUINT32 *object_p,
01276                            ASN1TagType tagging);
01277 
01298 EXTERNBER int xe_int8 (OSCTXT* pctxt, OSINT8 *object_p, ASN1TagType tagging);
01299 
01320 EXTERNBER int xe_int16 (OSCTXT* pctxt, OSINT16 *object_p, ASN1TagType tagging);
01321 
01344 EXTERNBER int xe_int64 (OSCTXT* pctxt, OSINT64 *object_p,
01345                         ASN1TagType tagging);
01346 
01370 EXTERNBER int xe_uint64 (OSCTXT* pctxt, OSUINT64 *object_p,
01371                          ASN1TagType tagging);
01372 
01394 EXTERNBER int xe_uint8 (OSCTXT* pctxt, OSUINT8 *object_p, ASN1TagType tagging);
01395 
01417 EXTERNBER int xe_uint16 (OSCTXT* pctxt, OSUINT16 *object_p, ASN1TagType tagging);
01418 
01445 EXTERNBER int xe_bigint (OSCTXT* pctxt, const char* object_p,
01446                          ASN1TagType tagging);
01447 
01469 EXTERNBER int xe_bitstr (OSCTXT* pctxt, const OSOCTET* object_p,
01470                          OSUINT32 numbits, ASN1TagType tagging);
01471 
01494 EXTERNBER int xe_octstr (OSCTXT* pctxt, const OSOCTET* object_p,
01495                          OSUINT32 numocts, ASN1TagType tagging);
01496 
01523 EXTERNBER int xe_charstr (OSCTXT* pctxt, const char* object_p,
01524                           ASN1TagType tagging, ASN1TAG tag);
01525 
01545 #define xe_utf8str(pctxt,object_p,tagging) \
01546 xe_charstr (pctxt, (const char*)object_p, tagging, ASN_ID_UTF8String)
01547 
01577 EXTERNBER int xe_16BitCharStr (OSCTXT* pctxt, Asn116BitCharString* object_p,
01578                                ASN1TagType tagging, ASN1TAG tag);
01579 
01609 EXTERNBER int xe_32BitCharStr (OSCTXT* pctxt, Asn132BitCharString* object_p,
01610                                ASN1TagType tagging, ASN1TAG tag);
01611 
01628 EXTERNBER int xe_null (OSCTXT* pctxt, ASN1TagType tagging);
01629 
01647 EXTERNBER int xe_objid (OSCTXT* pctxt, ASN1OBJID *object_p,
01648                         ASN1TagType tagging);
01649 
01668 EXTERNBER int xe_oid64 (OSCTXT* pctxt, ASN1OID64 *object_p,
01669                         ASN1TagType tagging);
01670 
01688 EXTERNBER int xe_reloid (OSCTXT* pctxt, ASN1OBJID *object_p,
01689                          ASN1TagType tagging);
01690 
01711 EXTERNBER int xe_enum (OSCTXT* pctxt, OSINT32 *object_p, ASN1TagType tagging);
01712 
01733 EXTERNBER int xe_enumUnsigned (OSCTXT* pctxt, OSUINT32 *object_p,
01734                                ASN1TagType tagging);
01735 
01760 EXTERNBER int xe_real (OSCTXT* pctxt, OSREAL *object_p, ASN1TagType tagging);
01761 
01781 EXTERNBER int xe_OpenType (OSCTXT* pctxt, const OSOCTET* object_p,
01782                            OSUINT32 numocts);
01783 
01790 EXTERNBER int xe_OpenTypeExt (OSCTXT* pctxt, OSRTDList* pElemList);
01791 
01810 EXTERNBER int xe_real10 (OSCTXT *pctxt, const char* object_p,
01811                          ASN1TagType tagging);
01812 
01831 EXTERNBER int xe_derReal10 (OSCTXT *pctxt, const char* object_p,
01832                             ASN1TagType tagging);
01833 
01851 EXTERNBER int xe_setp (OSCTXT* pctxt, OSOCTET *buf_p, int bufsiz);
01852 
01866 EXTERNBER OSOCTET* xe_getp (OSCTXT* pctxt);
01867 
01885 EXTERNBER void xe_free (OSCTXT* pctxt);
01886 
01910 EXTERNBER int xe_expandBuffer (OSCTXT *pctxt, size_t length);
01911 
01932 EXTERNBER int xe_memcpy (OSCTXT *pctxt, const OSOCTET* object_p,
01933                          size_t length) ;
01934 
01947 EXTERNBER int xe_len (OSCTXT *pctxt, int length) ;
01948 
01967 EXTERNBER int xe_derCanonicalSort (OSCTXT* pctxt, OSRTSList* pList);
01968 
01984 EXTERNBER int xe_TagAndIndefLen (OSCTXT *pctxt, ASN1TAG tag, int length) ;
01985 
01993 EXTERNBER void xe_getBufLocDescr (OSCTXT *pctxt, OSUINT32 length,
01994                                   Asn1BufLocDescr* pDescr);
01995 
02015 EXTERNBER int derEncBitString
02016 (OSCTXT* pctxt, const OSOCTET* pvalue, OSUINT32 numbits,
02017  ASN1TagType tagging);
02018 
02021 /* utility functions */
02022 
02045 EXTERNBER int berDefToIndefLen (OSCTXT *pSrcCtxt, OSCTXT *pDstCtxt);
02046 
02057 EXTERNBER int berIndefToDefLen (OSCTXT *pSrcCtxt, OSCTXT *pDstCtxt);
02058 
02066 EXTERNBER OSBOOL berErrAddTagParm (OSCTXT* pctxt, ASN1TAG tag);
02067 
02068 /* Note: this definition is deprecated.  Calls to xu_addTagErrParm      */
02069 /* should be replaced with berErrAddTagParm.                            */
02070 #define xu_addTagErrParm berErrAddTagParm
02071 
02081 EXTERNBER int berErrUnexpTag (OSCTXT* pctxt, ASN1TAG exptag);
02082 
02087 EXTERNBER int berGetLibVersion (void);
02088 
02094 EXTERNBER const char *berGetLibInfo (void);
02095 
02114 EXTERNBER int berParseTagLen
02115 (const OSOCTET* buffer, size_t bufidx, size_t bufsiz,
02116  ASN1TAG* ptag, size_t* plen);
02117 
02127 EXTERNBER const char* berTagToString
02128 (ASN1TAG tag, char* buffer, size_t bufsiz);
02129 
02140 EXTERNBER const char* berTagToDynStr (OSCTXT* pctxt, ASN1TAG tag);
02141 
02142 EXTERNBER int xu_verify_len (OSOCTET *msg_p);
02143 EXTERNBER void *xu_parse_mmbuf (
02144   OSOCTET **buf_p2, int *buflen_p, OSOCTET *start_p, int bufsiz);
02145 
02169 EXTERNBER void xu_alloc_array (
02170   OSCTXT* pctxt, ASN1SeqOf* seqOf_p, int recSize, int recCount);
02171 
02172 EXTERNBER void xu_octscpy_s (
02173   OSUINT32* nocts_p, OSOCTET *data_p, char *cstr, char zterm);
02174 
02175 EXTERNBER void xu_octscpy_ss (ASN1OctStr *octStr_p, char *cstring, char zterm);
02176 
02177 EXTERNBER void xu_octscpy_d (
02178   OSCTXT* pctxt, OSUINT32* nocts_p, const OSOCTET** data_p2,
02179   char* cstring, char zterm);
02180 
02181 EXTERNBER void xu_octscpy_ds (
02182   OSCTXT* pctxt, ASN1DynOctStr *octStr_p, char *cstring, char zterm);
02183 
02184 EXTERNBER void xu_octmcpy_s (ASN1OctStr *octStr_p, void* data_p, int datalen);
02185 
02186 EXTERNBER void xu_octmcpy_d (
02187   OSCTXT* pctxt, ASN1DynOctStr *octStr_p, void* data_p, int datalen);
02188 
02189 EXTERNBER char* xu_fetchstr (int numocts, char *data);
02190 
02191 EXTERNBER int xu_hexstrcpy (char *data, char *hstring);
02192 EXTERNBER int xu_binstrcpy (char *data, char *bstring);
02193 
02219 EXTERNBER int xu_dump (const OSOCTET *msgptr, ASN1DumpCbFunc cb, void* cbArg_p);
02220 
02232 EXTERNBER int xu_fdump (FILE *file_p, const OSOCTET *msgptr);
02233 
02249 #define xu_hex_dump(msg,numoct,hdr) rtxHexDump(msg,numoct)
02250 
02271 EXTERNBER int xu_dump2 (OSCTXT *pctxt, const OSOCTET *msgptr);
02272 
02273 EXTERNBER void xu_fmt_tag (
02274   ASN1TAG *tag_p, char *class_p, char *form_p, char *id_code);
02275 
02276 EXTERNBER char* xu_fmt_contents (OSCTXT* pctxt, int len, int *count);
02277 
02278 EXTERNBER int  xu_fread (FILE* fp, OSOCTET* bufp, int bufsiz);
02279 
02286 EXTERNBER void xu_SaveBufferState (OSCTXT* pCtxt, OSRTBufSave* pSavedInfo);
02287 
02295 EXTERNBER void xu_RestoreBufferState (OSCTXT* pCtxt, OSRTBufSave* pSavedInfo);
02296 
02300 /* This macro will fetch the next byte in the input stream.  A test is  */
02301 /* done for buffer overrun.                                             */
02302 
02303 #define XD_MEMCPY1(pctxt, object_p) \
02304 ((ASN1BUF_INDEFLEN(pctxt) || \
02305 ((pctxt)->buffer.byteIndex < (pctxt)->buffer.size)) ? \
02306 (*object_p = *OSRTBUFPTR(pctxt), (pctxt)->buffer.byteIndex ++, 0) : \
02307 RTERR_ENDOFBUF)
02308 
02309 /* This macro will fetch the next byte in the input stream.  No test is */
02310 /* done for buffer overrun..                                            */
02311 
02312 #define XD_FETCH1(pctxt) ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex++])
02313 
02314 /* This macro will match a single-byte tag. It does not advance the     */
02315 /* decode cursor.                                                       */
02316 
02317 #define XD_PEEKTAG(pctxt, tag) \
02318 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] & (~0x20)) == (tag & (~0x20)))
02319 
02320 /* This macro returns true if the next tag is constructed.              */
02321 /* It does not advance the decode cursor.                               */
02322 
02323 #define XD_PEEKPC(pctxt) \
02324 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] & 0x20) == 0x20)
02325 
02326 /* This macro will test for an EOC (end-of-context) marker */
02327 
02328 #define XD_MATCHEOC(pctxt) \
02329 ( ( (pctxt)->buffer.byteIndex + 2 <= (pctxt)->buffer.size ) && \
02330 ( (pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == 0 ) && \
02331 ( (pctxt)->buffer.data[(pctxt)->buffer.byteIndex + 1] == 0 ) )
02332 
02333 /* These macros will test a series of bytes in the decode buffer for a  */
02334 /* match.                                                               */
02335 #define XD_MATCHBYTES1(pctxt, b1) \
02336 ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1)
02337 
02338 #define XD_MATCHBYTES2(pctxt, b1, b2) \
02339 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1) && \
02340  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] == b2))
02341 
02342 #define XD_MATCHBYTES3(pctxt, b1, b2, b3) \
02343 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1) && \
02344  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] == b2) && \
02345  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+2] == b3))
02346 
02347 #define XD_MATCHBYTES4(pctxt, b1, b2, b3, b4) \
02348 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1) && \
02349  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] == b2) && \
02350  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+2] == b3) && \
02351  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+3] == b4))
02352 
02353 #define XD_MATCHBYTES5(pctxt, b1, b2, b3, b4, b5) \
02354 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1) && \
02355  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] == b2) && \
02356  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+2] == b3) && \
02357  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+3] == b4) && \
02358  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+4] == b5))
02359 
02360 /* This macro will advance the decode buffer index by the given number  */
02361 /* number of bytes.                                                     */
02362 
02363 #define XD_BUMPIDX(pctxt, nbytes) ((pctxt)->buffer.byteIndex += nbytes)
02364 
02365 /* This macro will test for buffer overrun */
02366 
02367 #define XD_CHKBUFEND(pctxt) \
02368 (((ASN1BUF_INDEFLEN(pctxt)) || \
02369 ((pctxt)->buffer.byteIndex <= (pctxt)->buffer.size)) ? 0 : RTERR_ENDOFBUF)
02370 
02371 /* This macro will test if the given length value is within the current */
02372 /* bounds of the message buffer.  The given length value is assumed to  */
02373 /* be a definite length (i.e != ASN_K_INDEFLEN)..                       */
02374 
02375 #define XD_CHKDEFLEN(pctxt,len) \
02376 (((ASN1BUF_INDEFLEN(pctxt)) || \
02377 (((pctxt)->buffer.byteIndex + len) <= (pctxt)->buffer.size)) ? \
02378 0 : RTERR_ENDOFBUF)
02379 
02380 /* This macro will test for EOB */
02381 
02382 #define XD_CHKEOB(pctxt) \
02383 (((pctxt)->buffer.byteIndex + 2 > (pctxt)->buffer.size) ? TRUE : \
02384 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == 0 && \
02385 (pctxt)->buffer.data[(pctxt)->buffer.byteIndex + 1] == 0 ) ? \
02386 TRUE : FALSE))
02387 
02388 /* This macro will test for CCB overrun */
02389 
02390 #define XD_CHKEND(pctxt,ccb_p) \
02391 (((ccb_p)->len == ASN_K_INDEFLEN) ? XD_CHKEOB(pctxt) : \
02392 ((OSRTBUFPTR(pctxt) - (ccb_p)->ptr >= (ccb_p)->len) || \
02393 ((pctxt)->buffer.byteIndex >= (pctxt)->buffer.size)))
02394 
02395 /* This macro will check if the given amount of space is available      */
02396 /* in the encode buffer and attempt tp expand the buffer if necessary   */
02397 
02398 #define XE_CHKBUF(pctxt,len) \
02399 if (len > (pctxt)->buffer.byteIndex) { \
02400 int xstat = xe_expandBuffer (pctxt, len); \
02401 if (xstat != 0) return xstat; }
02402 
02403 /* This macro will put one byte into the encode buffer.  It is assumed  */
02404 /* that there is enough space available for the byte.                   */
02405 
02406 #define XE_PUT1(pctxt,ch) \
02407 (pctxt)->buffer.data[--(pctxt)->buffer.byteIndex] = ch;
02408 
02409 /* This macro will put two bytes into the encode buffer.  It is assumed */
02410 /* that there is enough space available for the bytes.                  */
02411 
02412 #define XE_PUT2(pctxt,ch1,ch2) \
02413 (pctxt)->buffer.byteIndex -= 2; \
02414 (pctxt)->buffer.data[(pctxt)->buffer.byteIndex] = ch1; \
02415 (pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] = ch2;
02416 
02417 /*
02418  * This macro will put one byte into the encode buffer.  It will first
02419  * check to see if enough space is available for the byte and attempt
02420  * to expand the buffer if necessary.
02421 */
02422 #define XE_SAFEPUT1(pctxt,ch) \
02423 XE_CHKBUF(pctxt,1); (pctxt)->buffer.data[--(pctxt)->buffer.byteIndex] = ch;
02424 
02425 #ifdef __cplusplus
02426 }
02427 #endif
02428 
02429 #endif /* _OSRTBER_H_ */