bdc5569995
This solves problems with int24 handlers that call int21/ah=59. Let truename and blockrw return with an error if there is a critical error. Don't overwrite the critical error # with the DOS error #. git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@709 6ac86273-5f31-0410-b378-82cca8765d1b
96 lines
3.6 KiB
C
96 lines
3.6 KiB
C
/****************************************************************/
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/* */
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/* error.c */
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/* */
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/* Main Kernel Error Handler Functions */
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/* */
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/* Copyright (c) 1995 */
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/* Pasquale J. Villani */
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/* All Rights Reserved */
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/* */
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/* This file is part of DOS-C. */
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/* */
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/* DOS-C is free software; you can redistribute it and/or */
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/* modify it under the terms of the GNU General Public License */
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/* as published by the Free Software Foundation; either version */
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/* 2, or (at your option) any later version. */
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/* */
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/* DOS-C is distributed in the hope that it will be useful, but */
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/* WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
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/* the GNU General Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public */
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/* License along with DOS-C; see the file COPYING. If not, */
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/* write to the Free Software Foundation, 675 Mass Ave, */
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/* Cambridge, MA 02139, USA. */
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/****************************************************************/
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#include "portab.h"
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#ifdef VERSION_STRINGS
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static BYTE *errorRcsId =
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"$Id$";
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#endif
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#include "globals.h"
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#ifdef DEBUG
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/* error registers */
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VOID dump(void)
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{
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printf("Register Dump [AH = %02x CS:IP = %04x:%04x FLAGS = %04x]\n",
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error_regs.AH, error_regs.CS, error_regs.IP, error_regs.FLAGS);
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printf("AX:%04x BX:%04x CX:%04x DX:%04x\n",
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error_regs.AX, error_regs.BX, error_regs.CX, error_regs.DX);
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printf("SI:%04x DI:%04x DS:%04x ES:%04x\n",
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error_regs.SI, error_regs.DI, error_regs.DS, error_regs.ES);
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}
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#endif
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/* issue a panic message for corrupted data structures */
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VOID panic(BYTE * s)
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{
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put_string("\nPANIC: ");
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put_string(s);
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put_string("\nSystem halted");
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for (;;) ;
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}
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#ifdef IPL
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/* issue an internal error message */
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VOID fatal(BYTE * err_msg)
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{
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printf("\nInternal IPL error - %s\nSystem halted\n", err_msg);
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exit(-1);
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}
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#else
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/* issue an internal error message */
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#if 0
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VOID fatal(BYTE * err_msg)
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{
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printf("\nInternal kernel error - \n");
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panic(err_msg);
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}
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#endif
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#endif
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/* Abort, retry or fail for character devices */
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COUNT char_error(request * rq, struct dhdr FAR * lpDevice)
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{
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CritErrCode = (rq->r_status & S_MASK) + 0x13;
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return CriticalError(EFLG_CHAR | EFLG_ABORT | EFLG_RETRY | EFLG_IGNORE,
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0, rq->r_status & S_MASK, lpDevice);
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}
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/* Abort, retry or fail for block devices */
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COUNT block_error(request * rq, COUNT nDrive, struct dhdr FAR * lpDevice,
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int mode)
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{
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CritErrCode = (rq->r_status & S_MASK) + 0x13;
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return CriticalError(EFLG_ABORT | EFLG_RETRY | EFLG_IGNORE |
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(mode == DSKWRITE ? EFLG_WRITE : 0),
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nDrive, rq->r_status & S_MASK, lpDevice);
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}
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