mirror of
https://github.com/ksherlock/mpw.git
synced 2024-11-22 15:31:50 +00:00
688 lines
12 KiB
C++
688 lines
12 KiB
C++
#include <string>
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#include <cerrno>
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#include <cctype>
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#include <algorithm>
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#include <chrono>
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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 "os.h"
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#include "toolbox.h"
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#include "stackframe.h"
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using ToolBox::Log;
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namespace {
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using namespace OS;
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// time stuff.
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const long EpochAdjust = 86400 * (365 * (1970 - 1904) + 17); // 17 leap years.
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std::chrono::time_point<std::chrono::steady_clock> BootTime;
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// should make this public since it's needed by mpw/*
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uint16_t errno_to_oserr(int xerrno)
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{
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switch (xerrno)
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{
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case 0: return 0;
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case EBADF: return rfNumErr;
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case EIO: return ioErr;
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case EACCES: return permErr;
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case ENOENT: return fnfErr;
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case ENOTDIR: return dirNFErr;
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case EISDIR: return notAFileErr;
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case ENOTSUP: return extFSErr;
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case EROFS: return wPrErr;
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case EEXIST: return dupFNErr;
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case EBUSY: return fBsyErr;
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case EDQUOT: return dskFulErr;
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case ENOSPC: return dskFulErr;
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default:
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return ioErr;
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}
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}
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std::string extension(const std::string &s)
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{
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std::string tmp;
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int pos;
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pos = s.find_last_of("./:");
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if (pos == s.npos) return tmp;
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if (s[pos++] != '.') return tmp;
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if (pos >= s.length()) return tmp;
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tmp = s.substr(pos);
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std::transform(tmp.begin(), tmp.end(), tmp.begin(),
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[](char c) { return tolower(c); }
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);
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return tmp;
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}
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std::string basename(const std::string &s)
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{
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int pos = s.find_last_of("/:");
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if (pos == s.npos) return s;
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return s.substr(pos + 1);
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}
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}
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namespace OS
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{
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bool Init()
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{
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BootTime = std::chrono::steady_clock::now();
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memoryWriteLong(0, 0x16A); // 0 ticks since boot.
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return true;
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}
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// known text file extensions
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bool IsTextFile(const std::string &s)
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{
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std::string ext = extension(s);
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if (ext.empty()) return false;
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char c = ext[0];
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switch(c)
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{
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case 'a':
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if (ext == "aii") // assembler
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return true;
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if (ext == "asm")
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return true;
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break;
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case 'c':
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if (ext == "c")
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return true;
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break;
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case 'e':
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if (ext == "equ") // asm iigs include file.
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return true;
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break;
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case 'i':
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if (ext == "i") // asmiigs include file
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return true;
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break;
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case 'h':
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if (ext == "h") // c header
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return true;
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break;
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case 'l':
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if (ext == "lst") // asm iigs listing
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return true;
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break;
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case 'm':
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if (ext == "macros")
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return true;
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break;
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case 'p':
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if (ext == "pii") // pascal
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return true;
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break;
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case 'r':
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if (ext == "rii") // rez
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return true;
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break;
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case 's':
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if (ext == "src") // asm equates
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return true;
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break;
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}
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// check for e16.xxxx or m16.xxxx
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ext = basename(s);
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if (ext.length() > 4)
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{
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switch (ext[0])
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{
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case 'm':
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case 'M':
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case 'e':
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case 'E':
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if (!strncmp("16.", ext.c_str() + 1, 3))
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return true;
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break;
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}
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}
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return false;
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}
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// known binary file extensions
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bool IsBinaryFile(const std::string &s)
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{
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std::string ext = extension(s);
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if (ext.empty()) return false;
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char c = ext[0];
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switch(c)
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{
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case 'o':
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if (ext == "obj")
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return true;
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break;
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}
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return false;
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}
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uint16_t Create(uint16_t trap)
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{
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uint32_t d0;
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uint32_t parm = cpuGetAReg(0);
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Log("%04x Create(%08x)\n", trap, parm);
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//uint32_t ioCompletion = memoryReadLong(parm + 12);
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uint32_t namePtr = memoryReadLong(parm + 18);
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//uint16_t ioVRefNum = memoryReadWord(parm + 22);
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//uint8_t ioFVersNum = memoryReadByte(parm + 26);
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std::string sname = ToolBox::ReadPString(namePtr, true);
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if (!sname.length())
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{
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memoryWriteWord(bdNamErr, parm + 16);
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return bdNamErr;
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}
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Log(" Create(%s)\n", sname.c_str());
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int fd;
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fd = ::open(sname.c_str(), O_WRONLY | O_CREAT | O_EXCL, 0666);
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if (fd < 0)
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{
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d0 = errno_to_oserr(errno);
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}
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else
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{
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::close(fd);
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d0 = 0;
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}
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memoryWriteWord(d0, parm + 16);
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return d0;
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}
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uint16_t Delete(uint16_t trap)
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{
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uint32_t d0;
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uint32_t parm = cpuGetAReg(0);
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Log("%04x Delete(%08x)\n", trap, parm);
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//uint32_t ioCompletion = memoryReadLong(parm + 12);
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uint32_t namePtr = memoryReadLong(parm + 18);
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//uint16_t ioVRefNum = memoryReadWord(parm + 22);
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//uint8_t ioFVersNum = memoryReadByte(parm + 26);
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std::string sname = ToolBox::ReadPString(namePtr, true);
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if (!sname.length())
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{
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memoryWriteWord(bdNamErr, parm + 16);
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return bdNamErr;
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}
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Log(" Delete(%s)\n", sname.c_str());
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int ok = ::unlink(sname.c_str());
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if (ok < 0)
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d0 = errno_to_oserr(errno);
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else
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d0 = 0;
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memoryWriteWord(d0, parm + 16);
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return d0;
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}
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uint16_t GetEOF(uint16_t trap)
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{
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uint32_t d0;
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size_t size;
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uint32_t parm = cpuGetAReg(0);
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Log("%04x GetEOF(%08x)\n", trap, parm);
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//uint32_t ioCompletion = memoryReadLong(parm + 12);
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uint16_t ioRefNum = memoryReadWord(parm + 24);
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struct stat st;
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if (::fstat(ioRefNum, &st) < 0)
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{
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d0 = errno_to_oserr(errno);
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size = 0;
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}
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else
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{
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d0 = 0;
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size = st.st_size;
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}
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memoryWriteWord(d0, parm + 16);
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memoryWriteLong(size, parm + 28);
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return d0;
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}
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// return the name of the default volume.
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// this does not translate well.
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uint16_t GetVol(uint16_t trap)
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{
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uint32_t parm = cpuGetAReg(0);
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Log("%04x GetVol(%08x)\n", trap, parm);
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//uint32_t ioCompletion = memoryReadLong(parm + 12);
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uint32_t namePtr = memoryReadLong(parm + 18);
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// ioResult
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memoryWriteWord(0, parm + 16);
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// ioVRefNum
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memoryWriteWord(0, parm + 22);
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std::string tmp = "MacOS";
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ToolBox::WritePString(namePtr, tmp);
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return 0;
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}
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uint16_t GetFileInfo(uint16_t trap)
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{
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uint16_t d0;
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uint32_t parm = cpuGetAReg(0);
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Log("%04x GetFileInfo(%08x)\n", trap, parm);
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//uint32_t ioCompletion = memoryReadLong(parm + 12);
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uint32_t ioNamePtr = memoryReadLong(parm + 18);
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//uint16_t ioVRefNum = memoryReadWord(parm + 22);
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//uint8_t ioFVersNum = memoryReadByte(parm + 26);
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int16_t ioFDirIndex = memoryReadWord(parm + 28);
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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(bdNamErr, parm + 16);
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return bdNamErr;
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}
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sname = ToolBox::ReadPString(ioNamePtr, true);
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Log(" GetFileInfo(%s)\n", sname.c_str());
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// todo -- how are absolute, relative, etc paths handled...
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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 = errno_to_oserr(errno);
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memoryWriteWord(d0, parm + 16);
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return d0;
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}
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// finder info
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{
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uint8_t buffer[32];
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std::memset(buffer, 0, sizeof(buffer));
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int rv;
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int xerrno;
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rv = ::getxattr(sname.c_str(), XATTR_FINDERINFO_NAME, buffer, 32, 0, 0);
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xerrno = errno;
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// override for source files.
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if (IsTextFile(sname))
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{
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std::memcpy(buffer, "TEXTMPS ", 8);
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}
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// only 16 bytes copied.
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std::memcpy(memoryPointer(parm + 32), buffer, 16);
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}
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// file reference number
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memoryWriteWord(0, parm + 24);
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// file attributes
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memoryWriteByte(0, parm + 30);
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// version (unused)
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memoryWriteByte(0, parm + 31);
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// file id
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memoryWriteLong(0, parm + 48);
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// file size
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memoryWriteWord(0, parm + 52);
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memoryWriteLong(st.st_size, parm + 54);
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memoryWriteLong(st.st_size, parm + 58);
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// create date.
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memoryWriteLong(UnixToMac(st.st_birthtime), parm + 72);
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memoryWriteLong(UnixToMac(st.st_mtime), parm + 76);
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// res fork...
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// do this last since it adjusts the name and the stat.
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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 + 62);
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memoryWriteLong(st.st_size, parm + 64);
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memoryWriteLong(st.st_size, parm + 68);
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}
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else
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{
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memoryWriteWord(0, parm + 62);
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memoryWriteLong(0, parm + 64);
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memoryWriteLong(0, parm + 68);
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}
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// no error.
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memoryWriteWord(0, parm + 16);
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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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// if iocompletion handler && asyn call....
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return 0;
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}
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uint16_t SetFileInfo(uint16_t trap)
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{
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std::string sname;
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uint16_t d0;
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uint32_t parm = cpuGetAReg(0);
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Log("%04x SetFileInfo(%08x)\n", trap, parm);
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//uint32_t ioCompletion = memoryReadLong(parm + 12);
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uint32_t ioNamePtr = memoryReadLong(parm + 18);
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//uint16_t ioVRefNum = memoryReadWord(parm + 22);
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//uint8_t ioFVersNum = memoryReadByte(parm + 26);
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//int16_t ioFDirIndex = memoryReadWord(parm + 28);
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// + 32 = finder data - 16 bytes.
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//uint32_t ioFlCrDat = memoryReadLong(parm + 72);
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//uint32_t ioFlMdDat = memoryReadLong(parm + 76);
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// currently, only sets finder info.
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if (!ioNamePtr)
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{
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memoryWriteWord(bdNamErr, parm + 16);
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return bdNamErr;
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}
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sname = ToolBox::ReadPString(ioNamePtr, true);
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Log(" SetFileInfo(%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 = errno_to_oserr(errno);
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memoryWriteWord(d0, parm + 16);
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return d0;
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}
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}
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// finder info is actually 32 bytes, so read and update the first 16.
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{
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uint8_t buffer[32];
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int ok;
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std::memset(buffer, 0, sizeof(buffer));
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ok = ::getxattr(sname.c_str(), XATTR_FINDERINFO_NAME, buffer, 32, 0, 0);
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// only 16 bytes copied.
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std::memcpy(buffer, memoryPointer(parm + 32), 16);
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ok = ::setxattr(sname.c_str(), XATTR_FINDERINFO_NAME, buffer, 32, 0, 0);
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if (ok < 0)
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{
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d0 = errno_to_oserr(errno);
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memoryWriteWord(d0, parm + 16);
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return d0;
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}
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}
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d0 = 0;
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memoryWriteWord(d0, parm + 16);
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return d0;
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}
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#pragma mark - String Utilities
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uint16_t CmpString(uint16_t trap)
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{
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/*
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* on entry:
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* A0 Pointer to first character of first string
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* A1 Pointer to first character of second string
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* D0 (high) length of first string
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* D0 (low) length of second string
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*
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* on exit:
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* D0 0 if strings equal, 1 if strings not equal.
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*
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*/
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bool caseSens = trap & (1 << 9);
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//bool diacSens = trap & (1 << 10); // ignore for now...
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uint32_t aStr = cpuGetAReg(0);
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uint32_t bStr = cpuGetAReg(1);
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uint32_t length = cpuGetDReg(0);
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uint32_t aLen = (length >> 16);
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uint32_t bLen = (length & 0xffff);
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std::string a = ToolBox::ReadString(aStr, aLen);
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std::string b = ToolBox::ReadString(bStr, bLen);
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Log("%04x CmpString(%s, %s)\n", trap, a.c_str(), b.c_str());
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if (aLen != bLen) return 1; // different length...
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if (aStr == bStr) return 0; // same ptr...
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bool eq;
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eq = std::equal(
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a.begin(),
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a.end(),
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b.begin(),
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[caseSens](char a, char b){
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if (a == b) return true;
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if (!caseSens)
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{
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a = toupper(a);
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b = toupper(b);
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}
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return a == b;
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}
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);
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return eq ? 0 : 1;
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}
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#pragma mark - Time Utilities
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time_t UnixToMac(time_t t)
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{
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return t + EpochAdjust;
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}
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time_t MacToUnix(time_t t)
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{
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return t - EpochAdjust;
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}
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uint16_t ReadDateTime(uint16_t trap)
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{
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/*
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* on entry:
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* A0 Pointer to long word secs
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*
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* on exit:
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* A0 pointer to long word secs
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* D0 Result code
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*
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*/
|
|
|
|
time_t now;
|
|
|
|
uint32_t secsPtr = cpuGetAReg(0);
|
|
|
|
Log("%04x ReadDateTime(%08x)\n", trap, secsPtr);
|
|
|
|
now = ::time(NULL);
|
|
|
|
|
|
now = UnixToMac(now);
|
|
if (secsPtr) memoryWriteLong(now, secsPtr);
|
|
|
|
// also set global variable Time.
|
|
memoryWriteLong(now, 0x020c);
|
|
return 0;
|
|
}
|
|
|
|
uint16_t SecondsToDate(uint16_t trap)
|
|
{
|
|
/*
|
|
* on entry:
|
|
* D0 Seconds since midnight, January 1, 1904
|
|
* A0 pointer to date-time record
|
|
*
|
|
* on exit:
|
|
* D0 Result code
|
|
*
|
|
*/
|
|
|
|
uint32_t s = cpuGetDReg(0);
|
|
uint32_t dtPtr = cpuGetAReg(0);
|
|
|
|
Log("%04x SecondsToDate(%08x, %08x)\n", trap, s, dtPtr);
|
|
|
|
|
|
if (dtPtr)
|
|
{
|
|
struct tm *tm;
|
|
time_t t;
|
|
t = MacToUnix(s);
|
|
|
|
tm = ::localtime(&t);
|
|
|
|
memoryWriteWord(tm->tm_year + 1900, dtPtr + 0);
|
|
memoryWriteWord(tm->tm_mon + 1, dtPtr + 2);
|
|
memoryWriteWord(tm->tm_mday, dtPtr + 4);
|
|
memoryWriteWord(tm->tm_hour, dtPtr + 6);
|
|
memoryWriteWord(tm->tm_min, dtPtr + 8);
|
|
memoryWriteWord(tm->tm_sec, dtPtr + 10);
|
|
memoryWriteWord(tm->tm_wday + 1, dtPtr + 12);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
uint16_t TickCount(uint16_t trap)
|
|
{
|
|
typedef std::chrono::duration<int32_t, std::ratio<1, 60> > ticks;
|
|
|
|
Log("%04x TickCount()\n", trap);
|
|
|
|
auto now = std::chrono::steady_clock::now();
|
|
|
|
uint32_t t = std::chrono::duration_cast< ticks >(now - BootTime).count();
|
|
|
|
|
|
// global Ticks
|
|
memoryWriteLong(t, 0x16A);
|
|
ToolReturn<4>(-1, t);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
} |