gen-vals.c

asn.1 compiler

/*
 * compiler/back_ends/c++_gen/gen_vals.c - prints ASN.1 values in c++ format
 *
 * MS 92
 * Copyright (C) 1991, 1992 Michael Sample
 *           and the University of British Columbia
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * $Header: /usr/app/odstb/CVS/snacc/compiler/back-ends/c++-gen/gen-vals.c,v 1.4 1995/07/25 18:20:05 rj Exp $
 * $Log: gen-vals.c,v $
 * Revision 1.4  1995/07/25 18:20:05  rj
 * use true/false instead of AsnBool::true/false.
 *
 * changed `_' to `-' in file names.
 *
 * Revision 1.3  1994/10/08  03:47:57  rj
 * since i was still irritated by cpp standing for c++ and not the C preprocessor, i renamed them to cxx (which is one known suffix for C++ source files). since the standard #define is __cplusplus, cplusplus would have been the more obvious choice, but it is a little too long.
 *
 * Revision 1.2  1994/09/01  00:17:22  rj
 * snacc_config.h removed.
 *
 * Revision 1.1  1994/08/28  09:48:05  rj
 * first check-in. for a list of changes to the snacc-1.1 distribution please refer to the ChangeLog.
 *
 */

#include <stdio.h>

#include "asn-incl.h"
#include "asn1module.h"
#include "oid.h"
#include "mem.h"
#include "define.h"
#include "lib-types.h"
#include "str-util.h"
#include "snacc-util.h"
#include "rules.h"
#include "gen-vals.h"

/* non-exported routines' prototypes */

static void PrintCxxValueDefsName PROTO ((FILE *f, CxxRules *r, ValueDef *v));




void
PrintCxxValueDef PARAMS ((src, r, v),
    FILE *src _AND_
    CxxRules *r _AND_
    ValueDef *v)
{
    /* just do oid's, ints and bools for now */
    if ((v->value->basicValue->choiceId != BASICVALUE_OID) &&
        (v->value->basicValue->choiceId != BASICVALUE_INTEGER) &&
        (v->value->basicValue->choiceId != BASICVALUE_BOOLEAN))
        return;

    /*
     * put instantiation in src file
     */
    fprintf (src, "const ");
    PrintCxxValuesClass (src, r, v->value);
    fprintf (src, " ");
    PrintCxxValueDefsName (src, r, v);
    fprintf (src, " ");
    PrintCxxValueInstatiation (src, r, v->value);
    fprintf (src, ";\n\n");


}  /* PrintCxxValueDef */

void
PrintCxxValueExtern PARAMS ((hdr, r, v),
    FILE *hdr _AND_
    CxxRules *r _AND_
    ValueDef *v)
{
    /* just do oid's, ints and bools for now */
    if ((v->value->basicValue->choiceId != BASICVALUE_OID) &&
        (v->value->basicValue->choiceId != BASICVALUE_INTEGER) &&
        (v->value->basicValue->choiceId != BASICVALUE_BOOLEAN))
        return;

    /*
     * put extern declaration in hdr file
     */
    fprintf (hdr, "extern const ");
    PrintCxxValuesClass (hdr, r, v->value);
    fprintf (hdr, " ");
    PrintCxxValueDefsName (hdr, r, v);
    fprintf (hdr, ";\n");

}  /* PrintCxxValueExtern */


static void
PrintCxxValueDefsName PARAMS ((f, r, v),
    FILE *f _AND_
    CxxRules *r _AND_
    ValueDef *v)
{
    char *cName;
    cName = Asn1ValueName2CValueName (v->definedName);
    fprintf (f, "%s", cName);
    Free (cName);
}

void
PrintCxxValuesClass PARAMS ((f, r, v),
    FILE *f _AND_
    CxxRules *r _AND_
    Value *v)
{
    /* needs work - just do ints bools and oid's for now */
    switch (v->basicValue->choiceId)
    {
        case BASICVALUE_OID:
            fprintf (f, "%s", r->typeConvTbl[BASICTYPE_OID].className);
            break;

        case BASICVALUE_INTEGER:
            fprintf (f, "%s", r->typeConvTbl[BASICTYPE_INTEGER].className);
            break;

        case BASICVALUE_BOOLEAN:
            fprintf (f, "%s", r->typeConvTbl[BASICTYPE_BOOLEAN].className);
            break;

        default:
           break;
    }
}


void
PrintCxxValueInstatiation PARAMS ((f, r, v),
    FILE *f _AND_
    CxxRules *r _AND_
    Value *v)
{
    /* needs work - just do oids, ints and bools for now */
    switch (v->basicValue->choiceId)
    {
        case BASICVALUE_OID:
            PrintCxxOidValue (f, r, v->basicValue->a.oid);
            break;

        case BASICVALUE_INTEGER:
            PrintCxxIntValue (f, r, v->basicValue->a.integer);
            break;

        case BASICVALUE_BOOLEAN:
	    fprintf (f, "(%s)", v->basicValue->a.boolean ? "true" : "false");
            break;

        default:
           break;
    }
}



/*
 * given an AOID, c++ AOID constructors params are produced.
 * This is used for turning ASN.1 OBJECT ID values
 * into usable c++ values.
 *
 * eg for the oid { 0 1 2 } (in AOID format)
 *   (0,1,2)
 * is produced.
 */
void
PrintCxxOidValue PARAMS ((f, r, v),
    FILE *f _AND_
    CxxRules *r _AND_
    AsnOid *v)
{
    unsigned short int firstArcNum;
    unsigned long int arcNum;
    int i;

    fprintf (f, "(");

    /* un-munge first two arc numbers */
    for (arcNum = 0, i=0; (i < v->octetLen) && (v->octs[i] & 0x80);i++)
        arcNum = (arcNum << 7) + (v->octs[i] & 0x7f);

    arcNum = (arcNum << 7) + (v->octs[i] & 0x7f);
    i++;
    firstArcNum = arcNum/40;
    if (firstArcNum > 2)
        firstArcNum = 2;

    fprintf (f, "%u, %u", firstArcNum, arcNum - (firstArcNum * 40));

    for (; i < v->octetLen; )
    {
        for (arcNum = 0; (i < v->octetLen) && (v->octs[i] & 0x80);i++)
            arcNum = (arcNum << 7) + (v->octs[i] & 0x7f);

        arcNum = (arcNum << 7) + (v->octs[i] & 0x7f);
        i++;

        fprintf (f, ", %u", arcNum);
    }
    fprintf (f, ")");

} /* PrintCxxOidValue */



void
PrintCxxIntValue PARAMS ((f, r, v),
    FILE *f _AND_
    CxxRules *r _AND_
    AsnInt v)
{
    fprintf (f, "(%d)", v);
} /* PrintCxxIntValue */