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00016  * This software is an unpublished work subject to a confidentiality agreement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 
00834 EXTERNBER int xd_OpenTypeExt (OSCTXT* pctxt, ASN1CCB* ccb_p, ASN1TAG* tags,
00835                               int tagCount, OSRTDList *pElemList);
00836 
00849 EXTERNBER int xd_OpenTypeAppend (OSCTXT *pctxt, OSRTDList *pElemList);
00850 
00866 EXTERNBER int xd_real10 (OSCTXT *pctxt, const char** object_p,
00867                          ASN1TagType tagging, int length);
00868 
00899 EXTERNBER int xd_setp (OSCTXT *pctxt, const OSOCTET* msg_p,
00900                        int msglen, ASN1TAG *tag_p, int *len_p);
00901 
00909 EXTERNBER int xd_indeflen_ex (const OSOCTET* msg_p, int bufSize);
00910 
00911 /* Backward compatibility macro */
00912 #define xd_indeflen(m) xd_indeflen_ex(m, INT_MAX)
00913 
00925 EXTERNBER int xd_len (OSCTXT *pctxt, int *len_p);
00926 
00941 EXTERNBER int xd_chkend (OSCTXT *pctxt, ASN1CCB* ccb_p);
00942 
00954 EXTERNBER int xd_count (OSCTXT *pctxt, int length, int *count_p);
00955 
00964 EXTERNBER int xd_NextElement (OSCTXT* pctxt);
00965 
00980 EXTERNBER int xd_Tag1AndLen (OSCTXT* pctxt, OSINT32* len_p);
00981 
00982 /* internal decode function to do memory copies */
00997 EXTERNBER int xd_memcpy (OSCTXT* pctxt, OSOCTET *object_p, int length) ;
00998 
01017 EXTERNBER int xd_match1 (OSCTXT *pctxt, OSOCTET tag, int *len_p);
01018 
01019 
01022 /* file decode functions */
01023 
01059 EXTERNBER int xdf_tag (FILE* fp, ASN1TAG* ptag, OSOCTET* buffer, int* pbufidx);
01060 
01079 EXTERNBER int xdf_len (FILE* fp, OSINT32* plen, OSOCTET* buffer, int* pbufidx);
01080 
01101 EXTERNBER int xdf_TagAndLen (FILE* fp, ASN1TAG* ptag, OSINT32* plen,
01102                              OSOCTET* buffer, int* pbufidx);
01103 
01125 EXTERNBER int xdf_ReadPastEOC (FILE* fp, OSOCTET* buffer,
01126                                int bufsiz, int* pbufidx);
01127 
01151 EXTERNBER int xdf_ReadContents (FILE* fp, int len, OSOCTET* buffer,
01152                                 int bufsiz, int* pbufidx);
01157 /* encode functions */
01205 EXTERNBER int xe_tag_len (OSCTXT *pctxt, ASN1TAG tag, int length) ;
01206 
01230 EXTERNBER int xe_boolean (OSCTXT* pctxt, OSBOOL* object_p,
01231                           ASN1TagType tagging);
01232 
01253 EXTERNBER int xe_integer (OSCTXT* pctxt, int *object_p, ASN1TagType tagging);
01254 
01276 EXTERNBER int xe_unsigned (OSCTXT* pctxt, OSUINT32 *object_p,
01277                            ASN1TagType tagging);
01278 
01299 EXTERNBER int xe_int8 (OSCTXT* pctxt, OSINT8 *object_p, ASN1TagType tagging);
01300 
01321 EXTERNBER int xe_int16 (OSCTXT* pctxt, OSINT16 *object_p, ASN1TagType tagging);
01322 
01345 EXTERNBER int xe_int64 (OSCTXT* pctxt, OSINT64 *object_p,
01346                         ASN1TagType tagging);
01347 
01371 EXTERNBER int xe_uint64 (OSCTXT* pctxt, OSUINT64 *object_p,
01372                          ASN1TagType tagging);
01373 
01395 EXTERNBER int xe_uint8 (OSCTXT* pctxt, OSUINT8 *object_p, ASN1TagType tagging);
01396 
01418 EXTERNBER int xe_uint16 (OSCTXT* pctxt, OSUINT16 *object_p, ASN1TagType tagging);
01419 
01446 EXTERNBER int xe_bigint (OSCTXT* pctxt, const char* object_p,
01447                          ASN1TagType tagging);
01448 
01470 EXTERNBER int xe_bitstr (OSCTXT* pctxt, const OSOCTET* object_p,
01471                          OSUINT32 numbits, ASN1TagType tagging);
01472 
01495 EXTERNBER int xe_octstr (OSCTXT* pctxt, const OSOCTET* object_p,
01496                          OSUINT32 numocts, ASN1TagType tagging);
01497 
01524 EXTERNBER int xe_charstr (OSCTXT* pctxt, const char* object_p,
01525                           ASN1TagType tagging, ASN1TAG tag);
01526 
01546 #define xe_utf8str(pctxt,object_p,tagging) \
01547 xe_charstr (pctxt, (const char*)object_p, tagging, ASN_ID_UTF8String)
01548 
01578 EXTERNBER int xe_16BitCharStr (OSCTXT* pctxt, Asn116BitCharString* object_p,
01579                                ASN1TagType tagging, ASN1TAG tag);
01580 
01610 EXTERNBER int xe_32BitCharStr (OSCTXT* pctxt, Asn132BitCharString* object_p,
01611                                ASN1TagType tagging, ASN1TAG tag);
01612 
01629 EXTERNBER int xe_null (OSCTXT* pctxt, ASN1TagType tagging);
01630 
01648 EXTERNBER int xe_objid (OSCTXT* pctxt, ASN1OBJID *object_p,
01649                         ASN1TagType tagging);
01650 
01669 EXTERNBER int xe_oid64 (OSCTXT* pctxt, ASN1OID64 *object_p,
01670                         ASN1TagType tagging);
01671 
01689 EXTERNBER int xe_reloid (OSCTXT* pctxt, ASN1OBJID *object_p,
01690                          ASN1TagType tagging);
01691 
01712 EXTERNBER int xe_enum (OSCTXT* pctxt, OSINT32 *object_p, ASN1TagType tagging);
01713 
01734 EXTERNBER int xe_enumUnsigned (OSCTXT* pctxt, OSUINT32 *object_p,
01735                                ASN1TagType tagging);
01736 
01761 EXTERNBER int xe_real (OSCTXT* pctxt, OSREAL *object_p, ASN1TagType tagging);
01762 
01782 EXTERNBER int xe_OpenType (OSCTXT* pctxt, const OSOCTET* object_p,
01783                            OSUINT32 numocts);
01784 
01791 EXTERNBER int xe_OpenTypeExt (OSCTXT* pctxt, OSRTDList* pElemList);
01792 
01811 EXTERNBER int xe_real10 (OSCTXT *pctxt, const char* object_p,
01812                          ASN1TagType tagging);
01813 
01832 EXTERNBER int xe_derReal10 (OSCTXT *pctxt, const char* object_p,
01833                             ASN1TagType tagging);
01834 
01852 EXTERNBER int xe_setp (OSCTXT* pctxt, OSOCTET *buf_p, int bufsiz);
01853 
01867 EXTERNBER OSOCTET* xe_getp (OSCTXT* pctxt);
01868 
01886 EXTERNBER void xe_free (OSCTXT* pctxt);
01887 
01911 EXTERNBER int xe_expandBuffer (OSCTXT *pctxt, size_t length);
01912 
01933 EXTERNBER int xe_memcpy (OSCTXT *pctxt, const OSOCTET* object_p,
01934                          size_t length) ;
01935 
01948 EXTERNBER int xe_len (OSCTXT *pctxt, int length) ;
01949 
01968 EXTERNBER int xe_derCanonicalSort (OSCTXT* pctxt, OSRTSList* pList);
01969 
01985 EXTERNBER int xe_TagAndIndefLen (OSCTXT *pctxt, ASN1TAG tag, int length) ;
01986 
01994 EXTERNBER void xe_getBufLocDescr (OSCTXT *pctxt, OSUINT32 length,
01995                                   Asn1BufLocDescr* pDescr);
01996 
02016 EXTERNBER int derEncBitString
02017 (OSCTXT* pctxt, const OSOCTET* pvalue, OSUINT32 numbits,
02018  ASN1TagType tagging);
02019 
02022 /* utility functions */
02023 
02046 EXTERNBER int berDefToIndefLen (OSCTXT *pSrcCtxt, OSCTXT *pDstCtxt);
02047 
02058 EXTERNBER int berIndefToDefLen (OSCTXT *pSrcCtxt, OSCTXT *pDstCtxt);
02059 
02067 EXTERNBER OSBOOL berErrAddTagParm (OSCTXT* pctxt, ASN1TAG tag);
02068 
02069 /* Note: this definition is deprecated.  Calls to xu_addTagErrParm      */
02070 /* should be replaced with berErrAddTagParm.                            */
02071 #define xu_addTagErrParm berErrAddTagParm
02072 
02082 EXTERNBER int berErrUnexpTag (OSCTXT* pctxt, ASN1TAG exptag);
02083 
02088 EXTERNBER int berGetLibVersion (void);
02089 
02095 EXTERNBER const char *berGetLibInfo (void);
02096 
02115 EXTERNBER int berParseTagLen
02116 (const OSOCTET* buffer, size_t bufidx, size_t bufsiz,
02117  ASN1TAG* ptag, size_t* plen);
02118 
02128 EXTERNBER const char* berTagToString
02129 (ASN1TAG tag, char* buffer, size_t bufsiz);
02130 
02141 EXTERNBER const char* berTagToDynStr (OSCTXT* pctxt, ASN1TAG tag);
02142 
02143 EXTERNBER int xu_verify_len (OSOCTET *msg_p);
02144 EXTERNBER void *xu_parse_mmbuf (
02145   OSOCTET **buf_p2, int *buflen_p, OSOCTET *start_p, int bufsiz);
02146 
02170 EXTERNBER void xu_alloc_array (
02171   OSCTXT* pctxt, ASN1SeqOf* seqOf_p, int recSize, int recCount);
02172 
02173 EXTERNBER void xu_octscpy_s (
02174   OSUINT32* nocts_p, OSOCTET *data_p, char *cstr, char zterm);
02175 
02176 EXTERNBER void xu_octscpy_ss (ASN1OctStr *octStr_p, char *cstring, char zterm);
02177 
02178 EXTERNBER void xu_octscpy_d (
02179   OSCTXT* pctxt, OSUINT32* nocts_p, const OSOCTET** data_p2,
02180   char* cstring, char zterm);
02181 
02182 EXTERNBER void xu_octscpy_ds (
02183   OSCTXT* pctxt, ASN1DynOctStr *octStr_p, char *cstring, char zterm);
02184 
02185 EXTERNBER void xu_octmcpy_s (ASN1OctStr *octStr_p, void* data_p, int datalen);
02186 
02187 EXTERNBER void xu_octmcpy_d (
02188   OSCTXT* pctxt, ASN1DynOctStr *octStr_p, void* data_p, int datalen);
02189 
02190 EXTERNBER char* xu_fetchstr (int numocts, char *data);
02191 
02192 EXTERNBER int xu_hexstrcpy (char *data, char *hstring);
02193 EXTERNBER int xu_binstrcpy (char *data, char *bstring);
02194 
02220 EXTERNBER int xu_dump (const OSOCTET *msgptr, ASN1DumpCbFunc cb, void* cbArg_p);
02221 
02233 EXTERNBER int xu_fdump (FILE *file_p, const OSOCTET *msgptr);
02234 
02250 #define xu_hex_dump(msg,numoct,hdr) rtxHexDump(msg,numoct)
02251 
02272 EXTERNBER int xu_dump2 (OSCTXT *pctxt, const OSOCTET *msgptr);
02273 
02274 EXTERNBER void xu_fmt_tag (
02275   ASN1TAG *tag_p, char *class_p, char *form_p, char *id_code);
02276 
02277 EXTERNBER char* xu_fmt_contents (OSCTXT* pctxt, int len, int *count);
02278 
02279 EXTERNBER int  xu_fread (FILE* fp, OSOCTET* bufp, int bufsiz);
02280 
02287 EXTERNBER void xu_SaveBufferState (OSCTXT* pCtxt, OSRTBufSave* pSavedInfo);
02288 
02296 EXTERNBER void xu_RestoreBufferState (OSCTXT* pCtxt, OSRTBufSave* pSavedInfo);
02297 
02301 /* This macro will fetch the next byte in the input stream.  A test is  */
02302 /* done for buffer overrun.                                             */
02303 
02304 #define XD_MEMCPY1(pctxt, object_p) \
02305 ((ASN1BUF_INDEFLEN(pctxt) || \
02306 ((pctxt)->buffer.byteIndex < (pctxt)->buffer.size)) ? \
02307 (*object_p = *OSRTBUFPTR(pctxt), (pctxt)->buffer.byteIndex ++, 0) : \
02308 RTERR_ENDOFBUF)
02309 
02310 /* This macro will fetch the next byte in the input stream.  No test is */
02311 /* done for buffer overrun..                                            */
02312 
02313 #define XD_FETCH1(pctxt) ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex++])
02314 
02315 /* This macro will match a single-byte tag. It does not advance the     */
02316 /* decode cursor.                                                       */
02317 
02318 #define XD_PEEKTAG(pctxt, tag) \
02319 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] & (~0x20)) == (tag & (~0x20)))
02320 
02321 /* This macro returns true if the next tag is constructed.              */
02322 /* It does not advance the decode cursor.                               */
02323 
02324 #define XD_PEEKPC(pctxt) \
02325 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] & 0x20) == 0x20)
02326 
02327 /* This macro will test for an EOC (end-of-context) marker */
02328 
02329 #define XD_MATCHEOC(pctxt) \
02330 ( ( (pctxt)->buffer.byteIndex + 2 <= (pctxt)->buffer.size ) && \
02331 ( (pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == 0 ) && \
02332 ( (pctxt)->buffer.data[(pctxt)->buffer.byteIndex + 1] == 0 ) )
02333 
02334 /* These macros will test a series of bytes in the decode buffer for a  */
02335 /* match.                                                               */
02336 #define XD_MATCHBYTES1(pctxt, b1) \
02337 ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1)
02338 
02339 #define XD_MATCHBYTES2(pctxt, b1, b2) \
02340 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1) && \
02341  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] == b2))
02342 
02343 #define XD_MATCHBYTES3(pctxt, b1, b2, b3) \
02344 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1) && \
02345  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] == b2) && \
02346  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+2] == b3))
02347 
02348 #define XD_MATCHBYTES4(pctxt, b1, b2, b3, b4) \
02349 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1) && \
02350  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] == b2) && \
02351  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+2] == b3) && \
02352  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+3] == b4))
02353 
02354 #define XD_MATCHBYTES5(pctxt, b1, b2, b3, b4, b5) \
02355 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == b1) && \
02356  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] == b2) && \
02357  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+2] == b3) && \
02358  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+3] == b4) && \
02359  ((pctxt)->buffer.data[(pctxt)->buffer.byteIndex+4] == b5))
02360 
02361 /* This macro will advance the decode buffer index by the given number  */
02362 /* number of bytes.                                                     */
02363 
02364 #define XD_BUMPIDX(pctxt, nbytes) ((pctxt)->buffer.byteIndex += nbytes)
02365 
02366 /* This macro will test for buffer overrun */
02367 
02368 #define XD_CHKBUFEND(pctxt) \
02369 (((ASN1BUF_INDEFLEN(pctxt)) || \
02370 ((pctxt)->buffer.byteIndex <= (pctxt)->buffer.size)) ? 0 : RTERR_ENDOFBUF)
02371 
02372 /* This macro will test if the given length value is within the current */
02373 /* bounds of the message buffer.  The given length value is assumed to  */
02374 /* be a definite length (i.e != ASN_K_INDEFLEN)..                       */
02375 
02376 #define XD_CHKDEFLEN(pctxt,len) \
02377 (((ASN1BUF_INDEFLEN(pctxt)) || \
02378 (((pctxt)->buffer.byteIndex + len) <= (pctxt)->buffer.size)) ? \
02379 0 : RTERR_ENDOFBUF)
02380 
02381 /* This macro will test for EOB */
02382 
02383 #define XD_CHKEOB(pctxt) \
02384 (((pctxt)->buffer.byteIndex + 2 > (pctxt)->buffer.size) ? TRUE : \
02385 (((pctxt)->buffer.data[(pctxt)->buffer.byteIndex] == 0 && \
02386 (pctxt)->buffer.data[(pctxt)->buffer.byteIndex + 1] == 0 ) ? \
02387 TRUE : FALSE))
02388 
02389 /* This macro will test for CCB overrun */
02390 
02391 #define XD_CHKEND(pctxt,ccb_p) \
02392 (((ccb_p)->len == ASN_K_INDEFLEN) ? XD_CHKEOB(pctxt) : \
02393 ((OSRTBUFPTR(pctxt) - (ccb_p)->ptr >= (ccb_p)->len) || \
02394 ((pctxt)->buffer.byteIndex >= (pctxt)->buffer.size)))
02395 
02396 /* This macro will check if the given amount of space is available      */
02397 /* in the encode buffer and attempt tp expand the buffer if necessary   */
02398 
02399 #define XE_CHKBUF(pctxt,len) \
02400 if (len > (pctxt)->buffer.byteIndex) { \
02401 int xstat = xe_expandBuffer (pctxt, len); \
02402 if (xstat != 0) return xstat; }
02403 
02404 /* This macro will put one byte into the encode buffer.  It is assumed  */
02405 /* that there is enough space available for the byte.                   */
02406 
02407 #define XE_PUT1(pctxt,ch) \
02408 (pctxt)->buffer.data[--(pctxt)->buffer.byteIndex] = ch;
02409 
02410 /* This macro will put two bytes into the encode buffer.  It is assumed */
02411 /* that there is enough space available for the bytes.                  */
02412 
02413 #define XE_PUT2(pctxt,ch1,ch2) \
02414 (pctxt)->buffer.byteIndex -= 2; \
02415 (pctxt)->buffer.data[(pctxt)->buffer.byteIndex] = ch1; \
02416 (pctxt)->buffer.data[(pctxt)->buffer.byteIndex+1] = ch2;
02417 
02418 /*
02419  * This macro will put one byte into the encode buffer.  It will first
02420  * check to see if enough space is available for the byte and attempt
02421  * to expand the buffer if necessary.
02422 */
02423 #define XE_SAFEPUT1(pctxt,ch) \
02424 XE_CHKBUF(pctxt,1); (pctxt)->buffer.data[--(pctxt)->buffer.byteIndex] = ch;
02425 
02426 #ifdef __cplusplus
02427 }
02428 #endif
02429 
02430 #endif /* _OSRTBER_H_ */