/*
 *@@sourcefile sec32_data.c:
 *      global variables for the data segment.
 *
 *      See strat_init_base.c for an introduction to the driver
 *      structure in general.
 */

/*
 *      Copyright (C) 2000-2003 Ulrich M”ller.
 *      Based on the MWDD32.SYS example sources,
 *      Copyright (C) 1995, 1996, 1997  Matthieu Willm (willm@ibm.net).
 *
 *      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, in version 2 as it comes in the COPYING
 *      file of the XWorkplace main distribution.
 *      This program 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.  See the
 *      GNU General Public License for more details.
 */

#define INCL_DOS
#define INCL_DOSERRORS
#define INCL_NOPMAPI
#include <os2.h>
#include <string.h>

#include "xwpsec32.sys\types.h"
#include "xwpsec32.sys\StackToFlat.h"
#include "xwpsec32.sys\DevHlp32.h"

extern int DH32ENTRY DevHlp32_AllocOneGDTSelector(
                    unsigned short *psel               // eax !!! STACK BASED !!!
                   );

int DH32ENTRY DevHlp32_AllocGDTSelector(unsigned short *psel, int count)
{
    int            rc;
    unsigned short sel;
    int            i;

    i  = 0;
    rc = NO_ERROR;
    while ((rc == NO_ERROR) && (i < count))
    {
        if (!(rc = DevHlp32_AllocOneGDTSelector(&sel)))
            psel[i++] = sel;
    }

    /*
     * In case of error we should free successfuly allocated GDT selectors
     */
    if (rc != NO_ERROR)
        while (i)
            DevHlp32_FreeGDTSelector(psel[--i]);

    return rc;
}

extern int _Optlink DevHlp32_AttachToDD(
                    char *ddname,               /* eax !!! STACK BASED !!! */
                    void *ddtable               /* edx !!! STACK BASED !!! */
                   );

int DH32ENTRY DevHlp32_AttachDD(char *ddname, struct ddtable *table)
{
    int            rc;
    char           name[9];
    struct ddtable tmp;
    char           *__name = __StackToFlat(name);
//    struct ddtable *__tmp  = __StackToFlat(&tmp);

    if (strlen(ddname) < 9)
    {
        strcpy(__name, ddname);
        rc = DevHlp32_AttachToDD(name, &tmp);
        if (rc == NO_ERROR)
            memcpy(table , &tmp, sizeof(struct ddtable));
    }
    else
    {
        rc = ERROR_INVALID_PARAMETER;
    }

    return rc;
}