/usr/include/snacc/c++/asn-len.h is in libsnacc-dev 1.3bbn-11ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | // file: .../c++-lib/inc/asn-len.h - handle ASN.1 length encoding/decoding etc.
//
// MS 92/06/18
// Copyright (C) 1992 Michael Sample and the University of British Columbia
//
// This library is free software; you can redistribute it and/or
// modify it provided that this copyright/license information is retained
// in original form.
//
// If you modify this file, you must clearly indicate your changes.
//
// This source code is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
//
// $Header: /usr/app/odstb/CVS/snacc/c++-lib/inc/asn-len.h,v 1.6 1997/02/16 10:07:43 rj Exp $
// $Log: asn-len.h,v $
// Revision 1.6 1997/02/16 10:07:43 rj
// make the unsigned value unsigned :-)
//
// Revision 1.5 1995/07/25 20:19:01 rj
// changed `_' to `-' in file names.
//
// Revision 1.4 1994/10/08 04:18:04 rj
// code for meta structures added (provides information about the generated code itself).
//
// code for Tcl interface added (makes use of the above mentioned meta code).
//
// virtual inline functions (the destructor, the Clone() function, BEnc(), BDec() and Print()) moved from inc/*.h to src/*.C because g++ turns every one of them into a static non-inline function in every file where the .h file gets included.
//
// made Print() const (and some other, mainly comparison functions).
//
// several `unsigned long int' turned into `size_t'.
//
// Revision 1.3 1994/08/31 23:35:00 rj
// semicolon removed from end of macro text
//
// Revision 1.2 1994/08/28 10:00:50 rj
// comment leader fixed.
//
// Revision 1.1 1994/08/28 09:20:36 rj
// first check-in. for a list of changes to the snacc-1.1 distribution please refer to the ChangeLog.
#ifndef _asn_len_h_
#define _asn_len_h_
typedef size_t AsnLen;
#define INDEFINITE_LEN ~0UL // max unsigned value used for indef rep
#ifdef USE_INDEF_LEN
#define BEncEocIfNec(b)\
BEncEoc (b)
#define BEncConsLen(b, len)\
2 + BEncIndefLen (b) /* include len for EOC */
#else // default -- use definite length -- usually faster (for snacc encoders) and smaller encodings
#define BEncEocIfNec(b) /* do nothing */
#define BEncConsLen(b, len)\
BEncDefLen (b, len)
#endif
#define BEncIndefLen( b)\
1;\
b.PutByteRvs (0x80)
/*
* use if you know the encoded length will be 0 >= len <= 127
* Eg for booleans, nulls, any resonable integers and reals
*
* NOTE: this particular Encode Routine does NOT return the length
* encoded (1). The length counter must be explicity incremented
*/
#define BEncDefLenTo127( b, len)\
b.PutByteRvs ((unsigned char) len)
#define BDEC_2ND_EOC_OCTET( b, bytesDecoded, env)\
{\
if ((b.GetByte() != 0) || b.ReadError())\
Asn1Warning << "Warning - second octet of EOC not zero" << std::endl;\
(bytesDecoded)++;\
}
AsnLen BDecLen (BUF_TYPE b, AsnLen &bytesDecoded, ENV_TYPE env);
AsnLen BEncDefLen ( BUF_TYPE b, AsnLen len);
AsnLen BEncEoc (BUF_TYPE b);
void BDecEoc (BUF_TYPE b, AsnLen &bytesDecoded, ENV_TYPE env);
#endif /* conditional include */
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