mirror of
https://github.com/ksherlock/mpw.git
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512 lines
12 KiB
C++
512 lines
12 KiB
C++
/*
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* Copyright (c) 2013, Kelvin W Sherlock
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <cerrno>
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#include <cassert>
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#include <cctype>
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#include <ctime>
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#include <algorithm>
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#include <chrono>
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#include <deque>
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#include <string>
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#include <sys/xattr.h>
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#include <sys/stat.h>
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#include <sys/paths.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <strings.h>
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#include <cpu/defs.h>
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#include <cpu/CpuModule.h>
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#include <cpu/fmem.h>
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#include <macos/errors.h>
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#include "os.h"
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#include "os_internal.h"
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#include "toolbox.h"
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#include "stackframe.h"
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#include "fs_spec.h"
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using ToolBox::Log;
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using MacOS::macos_error_from_errno;
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namespace OS {
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uint16_t PBGetWDInfo(uint32_t parm)
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{
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enum { // WDPBRec
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_qLink = 0,
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_qType = 4,
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_ioTrap = 6,
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_ioCmdAddr = 8,
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_ioCompletion = 12,
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_ioResult = 16,
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_ioNamePtr = 18,
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_ioVRefNum = 22,
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_filler1 = 24,
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_ioWDIndex = 26,
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_ioWDProcID = 28,
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_ioWDVRefNum = 32,
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_filler2 = 34,
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_ioWDDirID = 48,
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};
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/*
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* TODO - this is a Massive hack.
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* MPW returns this: for a 0/0 entry.
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* PBGetWDInfo
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* 0
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* ioNamePtr: MacOS
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* ioVRefNum: -1
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* ioWDProcID: 0
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* ioWDVRefNum: -1
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* ioWDDirID: 2 << Root volume is always entry #2.
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*/
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uint16_t d0 = 0;
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uint32_t ioNamePtr = memoryReadLong(parm + _ioNamePtr);
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uint16_t ioVRefNum = memoryReadWord(parm + _ioVRefNum);
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uint16_t ioWDIndex = memoryReadWord(parm + _ioWDIndex);
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//uint32_t ioWDProcID = memoryReadLong(parm + _ioWDProcID);
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uint16_t ioWDVRefNum = memoryReadWord(parm + _ioWDVRefNum);
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Log(" PBGetWDInfo($%04x, $%04x, $%04x)\n", ioVRefNum, ioWDIndex, ioWDVRefNum);
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// todo -- need to expand the fsspec code to give a id #
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// to all filse and directories.
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// and move to common internal code.
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if (ioNamePtr) ToolBox::WritePString(ioNamePtr, std::string("MacOS"));
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memoryWriteWord(-1, parm + _ioVRefNum);
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memoryWriteLong(0, parm + _ioWDProcID);
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memoryWriteWord(-1, parm + _ioWDVRefNum);
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memoryWriteLong(2, parm + _ioWDDirID);
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d0 = 0;
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memoryWriteWord(d0, parm + _ioResult);
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return d0;
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}
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uint16_t PBGetCatInfo(uint32_t parm)
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{
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enum { // FileParam
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_qLink = 0,
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_qType = 4,
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_ioTrap = 6,
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_ioCmdAddr = 8,
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_ioCompletion = 12,
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_ioResult = 16,
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_ioNamePtr = 18,
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_ioVRefNum = 22,
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_ioFRefNum = 24,
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_ioFVersNum = 26,
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_filler1 = 27,
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_ioFDirIndex = 28,
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_ioFlAttrib = 30,
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_ioACUser = 31,
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/* HFileInfo */
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_ioFlFndrInfo = 32,
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_ioDirID = 48,
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_ioFlStBlk = 52,
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_ioFlLgLen = 54,
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_ioFlPyLen = 58,
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_ioFlRStBlk = 62,
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_ioFlRLgLen = 64,
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_ioFlRPyLen = 68,
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_ioFlCrDat = 72,
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_ioFlMdDat = 76,
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_ioFlBkDat = 80,
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_ioFlXFndrInfo = 84,
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_ioFlParID = 100,
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_ioFlClpSiz = 104,
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/* DirInfo */
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_ioDrUsrWds = 32,
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_ioDrDirID = 48,
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_ioDrNmFls = 52,
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_filler3 = 54,
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_ioDrCrDat = 72,
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_ioDrMdDat = 76,
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_ioDrBkDat = 80,
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_ioDrFndrInfo = 84,
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_ioDrParID = 100,
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};
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uint16_t d0;
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// yuck. this is sort of a getdirent/stat call....
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//uint32_t ioCompletion = memoryReadLong(parm + _ioCompletion);
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uint32_t ioNamePtr = memoryReadLong(parm + _ioNamePtr);
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//uint16_t ioVRefNum = memoryReadWord(parm + _ioVRefNum);
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//uint8_t ioFVersNum = memoryReadByte(parm + _ioFVersNum);
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int16_t ioFDirIndex = memoryReadWord(parm + _ioFDirIndex);
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if (ioFDirIndex <= 0)
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{
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// based name
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std::string sname;
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if (!ioNamePtr)
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{
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memoryWriteWord(MacOS::bdNamErr, parm + _ioResult);
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return MacOS::bdNamErr;
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}
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sname = ToolBox::ReadPString(ioNamePtr, true);
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{
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uint32_t ioDirID = memoryReadLong(parm + _ioDirID);
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sname = FSSpecManager::ExpandPath(sname, ioDirID);
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}
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Log(" PBGetCatInfo(%s)\n", sname.c_str());
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struct stat st;
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if (::stat(sname.c_str(), &st) < 0)
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{
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d0 = macos_error_from_errno();
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memoryWriteWord(d0, parm + _ioResult);
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return d0;
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}
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if (S_ISDIR(st.st_mode))
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{
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// bit 4 - is a directory.
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memoryWriteByte(1 << 4, parm + _ioFlAttrib);
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memoryWriteByte(0, parm + _ioACUser);
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std::memset(memoryPointer(parm + _ioDrUsrWds), 0, 16); // DInfo
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// cw68k expects the directory ID to be set.
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uint32_t dirID = FSSpecManager::IDForPath(sname);
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memoryWriteLong(dirID, parm + _ioDrDirID);
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// the links count should be ~= number of dirents ( +2 for . and ..)
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int links = st.st_nlink - 2;
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if (links < 0) links = 0;
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if (links > 65535) links = 65535;
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memoryWriteWord(links, parm + _ioDrNmFls); // ioDrNmFls - # of files in dir
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memoryWriteLong(UnixToMac(st.st_birthtime), parm + _ioDrCrDat); // create
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memoryWriteLong(UnixToMac(st.st_mtime), parm + _ioDrMdDat); // modify
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memoryWriteLong(UnixToMac(st.st_mtime), parm + _ioDrBkDat); // backup
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std::memset(memoryPointer(parm + _ioDrFndrInfo), 0, 16); // DXInfo
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memoryWriteLong(0, parm + _ioDrParID);
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}
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else
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{
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memoryWriteByte(0, parm + _ioFlAttrib);
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memoryWriteByte(0, parm + _ioACUser);
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Internal::GetFinderInfo(sname, memoryPointer(parm + _ioFlFndrInfo), false); // finder info
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memoryWriteLong(0, parm + _ioDirID);
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memoryWriteWord(0, parm + _ioFlStBlk);
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memoryWriteLong(st.st_size, parm + _ioFlLgLen);
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memoryWriteLong(st.st_size, parm + _ioFlPyLen);
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// resource info... below
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memoryWriteLong(UnixToMac(st.st_birthtime), parm + _ioFlCrDat); // create
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memoryWriteLong(UnixToMac(st.st_mtime), parm + _ioFlMdDat); // modify
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memoryWriteLong(UnixToMac(st.st_mtime), parm + _ioFlBkDat); // backup
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std::memset(memoryPointer(parm + _ioFlXFndrInfo), 0, 16); // FXInfo
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memoryWriteWord(0, parm + _ioFlParID);
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memoryWriteWord(0, parm + _ioFlClpSiz);
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sname.append(_PATH_RSRCFORKSPEC);
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if (::stat(sname.c_str(), &st) >= 0)
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{
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memoryWriteWord(0, parm + _ioFlRStBlk);
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memoryWriteLong(st.st_size, parm + _ioFlRLgLen);
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memoryWriteLong(st.st_size, parm + _ioFlRPyLen);
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}
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else
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{
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memoryWriteWord(0, parm + _ioFlRStBlk);
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memoryWriteLong(0, parm + _ioFlRLgLen);
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memoryWriteLong(0, parm + _ioFlRPyLen);
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}
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}
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// no error.
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memoryWriteWord(0, parm + _ioResult);
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return 0;
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}
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else
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{
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fprintf(stderr, "GetFileInfo -- ioFDirIndex not yet supported\n");
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exit(1);
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}
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return 0;
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}
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uint16_t PBSetCatInfo(uint32_t parm)
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{
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enum { // FileParam
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_qLink = 0,
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_qType = 4,
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_ioTrap = 6,
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_ioCmdAddr = 8,
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_ioCompletion = 12,
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_ioResult = 16,
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_ioNamePtr = 18,
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_ioVRefNum = 22,
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_ioFRefNum = 24,
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_ioFVersNum = 26,
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_filler1 = 27,
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_ioFDirIndex = 28,
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_ioFlAttrib = 30,
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_ioACUser = 31,
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/* HFileInfo */
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_ioFlFndrInfo = 32,
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_ioDirID = 48,
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_ioFlStBlk = 52,
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_ioFlLgLen = 54,
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_ioFlPyLen = 58,
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_ioFlRStBlk = 62,
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_ioFlRLgLen = 64,
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_ioFlRPyLen = 68,
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_ioFlCrDat = 72,
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_ioFlMdDat = 76,
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_ioFlBkDat = 80,
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_ioFlXFndrInfo = 84,
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_ioFlParID = 100,
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_ioFlClpSiz = 104,
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/* DirInfo */
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_ioDrUsrWds = 32,
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_ioDrDirID = 48,
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_ioDrNmFls = 52,
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_filler3 = 54,
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_ioDrCrDat = 72,
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_ioDrMdDat = 76,
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_ioDrBkDat = 80,
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_ioDrFndrInfo = 84,
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_ioDrParID = 100,
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};
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uint16_t d0;
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//uint32_t ioCompletion = memoryReadLong(parm + _ioCompletion);
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uint32_t ioNamePtr = memoryReadLong(parm + _ioNamePtr);
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//uint16_t ioVRefNum = memoryReadWord(parm + _ioVRefNum);
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//uint8_t ioFVersNum = memoryReadByte(parm + _ioFVersNum);
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//int16_t ioFDirIndex = memoryReadWord(parm + _ioFDirIndex);
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if (!ioNamePtr)
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{
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memoryWriteWord(MacOS::bdNamErr, parm + _ioResult);
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assert("PGSetCatInfo - no name.");
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return MacOS::bdNamErr;
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}
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std::string sname = ToolBox::ReadPString(ioNamePtr, true);
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{
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uint32_t ioDirID = memoryReadLong(parm + _ioDirID);
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sname = FSSpecManager::ExpandPath(sname, ioDirID);
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}
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Log(" PBSetCatInfo(%s)\n", sname.c_str());
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// check if the file actually exists
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{
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struct stat st;
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int ok;
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ok = ::stat(sname.c_str(), &st);
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if (ok < 0)
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{
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d0 = macos_error_from_errno();
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memoryWriteWord(d0, parm + _ioResult);
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return d0;
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}
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// just nop if it's a directory.
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if (S_ISDIR(st.st_mode))
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{
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d0 = 0;
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d0 = Internal::SetFileDates(sname,
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memoryReadLong(parm + _ioDrCrDat),
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memoryReadLong(parm + _ioDrMdDat),
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memoryReadLong(parm + _ioDrBkDat));
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memoryWriteWord(d0, parm + _ioResult);
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return d0;
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}
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}
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// set the finder info. could also call utimes or setattrlist, I suppose.
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d0 = Internal::SetFinderInfo(sname, memoryPointer(parm + _ioFlFndrInfo), false);
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if (d0 == 0) d0 = Internal::SetFileDates(sname,
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memoryReadLong(parm + _ioFlCrDat),
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memoryReadLong(parm + _ioFlMdDat),
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memoryReadLong(parm + _ioFlBkDat));
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memoryWriteWord(d0, parm + _ioResult);
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return d0;
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}
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uint16_t PBOpenDF(uint32_t paramBlock)
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{
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Log(" PBOpenDF\n");
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// same as Open but slightly different handling of . files.
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return OS::OpenCommon(paramBlock, false, false);
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}
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uint16_t PBHOpenDF(uint32_t paramBlock)
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{
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// PBHOpen... is identical to PBOpen... except
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// that it accepts a directory ID in ioDirID.
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Log(" PBHOpenDF\n");
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return OS::OpenCommon(paramBlock, true, false);
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}
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uint16_t PBHOpenDeny(uint32_t paramBlock)
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{
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// AccessParam.ioDenyModes short word matches
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// up with the permission byte considering it's big-endian.
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Log(" PBHOpenDeny\n");
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return OS::OpenCommon(paramBlock, true, false);
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}
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uint16_t PBHOpenRFDeny(uint32_t paramBlock)
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{
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Log(" PBHOpenRFDeny\n");
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return OS::OpenCommon(paramBlock, true, true);
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}
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uint16_t FSDispatch(uint16_t trap)
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{
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// TODO -- check new hfs bit ( (trap & 0x0200) == 0x0200)
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// TODO -- check async bit ((trap & 0x0400) == 0x0400)
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uint32_t selector = cpuGetDReg(0);
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uint32_t paramBlock = cpuGetAReg(0);
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Log("%04x FSDispatch(%08x, %08x)\n", trap, selector, paramBlock);
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switch (selector)
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{
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case 0x001a:
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return PBOpenDF(paramBlock);
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break;
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default:
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fprintf(stderr, "FSDispatch: selector %08x not implemented\n",
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selector);
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exit(1);
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}
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return 0;
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}
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uint16_t HFSDispatch(uint16_t trap)
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{
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uint32_t selector = cpuGetDReg(0);
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uint32_t paramBlock = cpuGetAReg(0);
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Log("%04x HFSDispatch(%08x, %08x)\n", trap, selector, paramBlock);
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switch (selector)
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{
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case 0x0007:
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return PBGetWDInfo(paramBlock);
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break;
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case 0x0009:
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return PBGetCatInfo(paramBlock);
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break;
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case 0x000a:
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return PBSetCatInfo(paramBlock);
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break;
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case 0x001a:
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return PBHOpenDF(paramBlock);
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case 0x0038:
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return PBHOpenDeny(paramBlock);
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case 0x0039:
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return PBHOpenRFDeny(paramBlock);
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default:
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fprintf(stderr, "HFSDispatch: selector %08x not implemented\n",
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selector);
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exit(1);
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}
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return 0;
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}
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}
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