Subversion Repositories SvarDOS

/* This file is part of the SvarCOM project and is published under the terms
 * of the MIT license.
 *
 * Copyright (C) 2021 Mateusz Viste
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef RMODINIT_H
#define RMODINIT_H

#define FLAG_EXEC_AND_QUIT    1
#define FLAG_PERMANENT        2
#define FLAG_ECHOFLAG         4
#define FLAG_ECHO_BEFORE_BAT  8
#define FLAG_SKIP_AUTOEXEC   16

struct rmod_props {
  char inputbuf[130];         /* input buffer for INT 21, AH=0x0A */
  unsigned short rmodseg;     /* segment where rmod is loaded */
  unsigned long origparent;   /* original parent (far ptr) of the shell */
  unsigned short origenvseg;  /* original environment segment */
  unsigned char flags;        /* command line parameters */
  unsigned char version;      /* used to detect mismatch between rmod and SvarCOM */
  char batfile[130];          /* truename of batch file being processed */
  char batargv[130];          /* args of the batch call (0-separated) */
  unsigned long batnextline;  /* offset in file of next bat line to process */
  char awaitingcmd[130];      /* command to exec next time (if any) */
};

#define RMOD_OFFSET_ENVSEG     0x2C   /* stored in rmod's PSP */
#define RMOD_OFFSET_COMSPECPTR (0x100 + 0x4A)
#define RMOD_OFFSET_BOOTDRIVE  (0x100 + 0x4C)
#define RMOD_OFFSET_LEXITCODE  (0x100 + 0x5B)
#define RMOD_OFFSET_EXECPARAM  (0x100 + 0x5C)
#define RMOD_OFFSET_EXECPROG   (0x100 + 0x6A)
#define RMOD_OFFSET_STDINFILE  (0x100 + 0xEA)
#define RMOD_OFFSET_STDOUTFILE (0x100 + 0x16A)
#define RMOD_OFFSET_STDOUTAPP  (0x100 + 0x1EA)
#define RMOD_OFFSET_BRKHANDLER (0x100 + 0x1EC)
#define RMOD_OFFSET_ROUTINE    (0x100 + 0x1EE)

struct rmod_props far *rmod_install(unsigned short envsize, unsigned char *rmodcore, unsigned short rmodcore_len);
struct rmod_props far *rmod_find(unsigned short rmodcore_len);
void rmod_updatecomspecptr(unsigned short rmod_seg, unsigned short env_seg);

#endif