mirror of https://github.com/ksherlock/mpw.git
587 lines
12 KiB
C++
587 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 "os_internal.h"
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#include "os.h"
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#include "toolbox.h"
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#include <macos/errors.h>
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#include <stdexcept>
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#include <cerrno>
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#include <cstring>
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#include <algorithm>
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#include <memory>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/xattr.h>
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#include <sys/attr.h>
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#include <sys/paths.h>
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#include <machine/endian.h>
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using ToolBox::Log;
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using MacOS::macos_error_from_errno;
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namespace OS { namespace Internal {
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/*
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tech note PT515
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ProDOS -> Macintosh conversion
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ProDOS Macintosh
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Filetype Auxtype Creator Filetype
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$00 $0000 'pdos' 'BINA'
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$B0 (SRC) (any) 'pdos' 'TEXT'
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$04 (TXT) $0000 'pdos' 'TEXT'
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$FF (SYS) (any) 'pdos' 'PSYS'
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$B3 (S16) (any) 'pdos' 'PS16'
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$uv $wxyz 'pdos' 'p' $uv $wx $yz
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Programmer's Reference for System 6.0:
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ProDOS Macintosh
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File Type Auxiliary Type Creator Type File Type
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$00 $0000 “pdos” “BINA”
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$04 (TXT) $0000 “pdos” “TEXT”
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$FF (SYS) (any) “pdos” “PSYS”
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$B3 (S16) $DByz “pdos” “p” $B3 $DB $yz
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$B3 (S16) (any) “pdos” “PS16”
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$D7 $0000 “pdos” “MIDI”
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$D8 $0000 “pdos” “AIFF”
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$D8 $0001 “pdos” “AIFC”
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$E0 $0005 “dCpy” “dImg”
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$FF (SYS) (any) “pdos” “PSYS”
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$uv $wxyz “pdos” “p” $uv $wx $yz
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mpw standard:
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$uv (any) "pdos" printf("%02x ",$uv)
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*/
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uint16_t GetFinderInfo(const std::string &pathName, void *info, bool extended)
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{
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// todo -- move to separate function? used in multiple places.
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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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rv = ::getxattr(pathName.c_str(), XATTR_FINDERINFO_NAME, buffer, 32, 0, 0);
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if (rv < 0)
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{
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switch (errno)
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{
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case ENOENT:
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case EACCES:
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return macos_error_from_errno();
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}
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// check for prodos ftype/auxtype
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uint8_t ftype;
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uint16_t atype;
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int rv1, rv2;
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rv1 = ::getxattr(pathName.c_str(), "prodos.FileType", &ftype, 1, 0, 0);
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rv2 = ::getxattr(pathName.c_str(), "prodos.AuxType", &atype, 2, 0, 0);
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if (rv1 == 1 && rv2 == 2)
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{
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#if BYTE_ORDER == BIG_ENDIAN
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ftype = (ftype >> 8) | (ftype << 8);
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#endif
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char tmp[8] = {
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'p', ' ', ' ', ' ',
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'p', 'd', 'o', 's'
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};
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tmp[1] = (char)ftype;
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tmp[2] = (char)((atype >> 8) & 0xff);
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tmp[3] = (char)(atype & 0xff);
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switch (atype)
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{
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case 0x00:
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std::memcpy(tmp, "BINA", 4);
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break;
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case 0x04:
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case 0xb0:
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std::memcpy(tmp, "TEXT", 4);
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break;
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case 0xff:
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std::memcpy(tmp, "PSYS", 4);
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break;
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case 0xd7:
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std::memcpy(tmp, "MIDI", 4);
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break;
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case 0xd8:
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switch (atype)
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{
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case 0x0000:
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std::memcpy(tmp, "AIFF", 4);
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break;
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case 0x0001:
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std::memcpy(tmp, "AIFC", 4);
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break;
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}
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break;
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case 0xe0:
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switch (atype)
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{
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case 0x0005:
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std::memcpy(tmp, "dImgdCpy", 8);
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break;
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}
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case 0xb3:
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if (atype == 0)
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{
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std::memcpy(tmp, "PS16", 4); // verify dumpobj.
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break;
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}
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}
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std::memcpy(buffer, tmp, 8);
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}
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}
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// override for source files.
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// TODO -- only override if missing?
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if (IsTextFile(pathName))
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{
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std::memcpy(buffer, "TEXTMPS ", 8);
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}
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// convert pdos types...
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if (std::memcmp(buffer + 4, "pdos", 4) == 0)
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{
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// mpw expects 'xx ' where
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// xx are the ascii-encode hex value of the file type.
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// the hfs fst uses 'p' ftype8 auxtype16
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// todo -- but only if auxtype is $0000 ??
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if (buffer[0] == 'p')
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{
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static char Hex[] = "0123456789ABCDEF";
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uint8_t ftype = buffer[1];
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buffer[0] = Hex[ftype >> 4];
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buffer[1] = Hex[ftype & 0x0f];
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buffer[2] = ' ';
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buffer[3] = ' ';
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}
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}
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if (extended)
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std::memcpy(info, buffer, 32);
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else
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std::memcpy(info, buffer, 16);
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return 0;
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}
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unsigned tox(unsigned x)
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{
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if (x >= '0' && x <= '9') return x - '0';
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if (x >= 'a' && x <= 'f') return x - 'a' + 10;
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if (x >= 'A' && x <= 'F') return x - 'A' + 10;
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return 0;
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}
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uint16_t SetFinderInfo(const std::string &pathName, uint32_t fileType, uint32_t creator)
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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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buffer[0] = fileType >> 24;
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buffer[1] = fileType >> 16;
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buffer[2] = fileType >> 8;
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buffer[3] = fileType >> 0;
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buffer[4] = creator >> 24;
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buffer[5] = creator >> 16;
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buffer[6] = creator >> 8;
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buffer[7] = creator >> 0;
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return SetFinderInfo(pathName, buffer, true);
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}
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uint16_t SetFinderInfo(const std::string &pathName, void *info, bool extended)
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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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if (extended)
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{
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std::memmove(buffer, info, 32);
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}
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else
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{
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rv = ::getxattr(pathName.c_str(), XATTR_FINDERINFO_NAME, buffer, 32, 0, 0);
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if (rv < 0)
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{
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switch (errno)
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{
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case ENOENT:
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case EACCES:
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return macos_error_from_errno();
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}
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}
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std::memmove(buffer, info, 16);
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}
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// convert pdos types.
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if (::memcmp(buffer + 2, " pdos", 6) == 0)
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{
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unsigned a = buffer[0];
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unsigned b = buffer[1];
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if (isxdigit(a) && isxdigit(b))
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{
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buffer[0] = 'p';
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buffer[1] = (tox(a) << 4) | tox(b);
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buffer[2] = 0;
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buffer[3] = 0;
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}
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}
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rv = ::setxattr(pathName.c_str(), XATTR_FINDERINFO_NAME, buffer, 32, 0, 0);
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if (rv < 0) return macos_error_from_errno();
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return 0;
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}
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uint16_t SetFileDates(const std::string &pathname, uint32_t createDate, uint32_t modificationDate, uint32_t backupDate)
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{
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// utimes(2) sets the access and mod times.
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// setattrlist sets the create and mod times (among other things)
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// this is kind of unfortunate in that a roundtrip will strip any nanoseconds, etc from the date/time.
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int rv;
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struct attrlist list;
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unsigned i = 0;
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timespec dates[3];
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memset(&list, 0, sizeof(list));
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memset(dates, 0, sizeof(dates));
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list.bitmapcount = ATTR_BIT_MAP_COUNT;
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list.commonattr = 0;
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if (createDate)
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{
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dates[i++].tv_sec = MacToUnix(createDate);
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list.commonattr |= ATTR_CMN_CRTIME;
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}
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if (modificationDate)
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{
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dates[i++].tv_sec = MacToUnix(modificationDate);
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list.commonattr |= ATTR_CMN_MODTIME;
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}
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if (backupDate)
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{
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dates[i++].tv_sec = MacToUnix(backupDate);
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list.commonattr |= ATTR_CMN_BKUPTIME;
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}
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if (!i) return 0;
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rv = setattrlist(pathname.c_str(), &list, dates, i * sizeof(timespec), 0);
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if (rv < 0 && errno == ENOTSUP)
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{
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// try utimes.
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struct timeval tv[2];
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memset(tv, 0, sizeof(tv));
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if (modificationDate) {
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tv[1].tv_sec = MacToUnix(modificationDate);
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rv = utimes(pathname.c_str(), tv);
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}
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}
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if (rv < 0) return macos_error_from_errno();
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return 0;
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}
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int32_t mac_seek(uint16_t refNum, uint16_t mode, int32_t offset)
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{
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off_t rv;
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switch (mode & 0x03)
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{
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case OS::fsAtMark:
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mode = SEEK_CUR;
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offset = 0;
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break;
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case OS::fsFromStart:
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mode = SEEK_SET;
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break;
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case OS::fsFromLEOF:
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mode = SEEK_END;
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break;
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case OS::fsFromMark:
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mode = SEEK_CUR;
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break;
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}
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rv = ::lseek(refNum, offset, mode);
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if (rv < 0) return macos_error_from_errno();
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return rv;
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}
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//std::deque<FDEntry> FDTable;
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std::deque<FDEntry> FDEntry::FDTable;
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FDEntry& FDEntry::allocate(int fd)
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{
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std::string noname;
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return allocate(fd, noname);
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}
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FDEntry& FDEntry::allocate(int fd, std::string &&filename)
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{
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if (fd < 0) throw std::out_of_range("Invalid FD");
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if (FDTable.size() <= fd)
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FDTable.resize(fd + 1);
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auto &e = FDTable[fd];
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e.refcount = 1;
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e.text = false;
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e.resource = false;
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e.filename = std::move(filename);
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return e;
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}
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FDEntry& FDEntry::allocate(int fd, const std::string &filename)
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{
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if (fd < 0) throw std::out_of_range("Invalid FD");
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if (FDTable.size() <= fd)
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FDTable.resize(fd + 1);
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auto &e = FDTable[fd];
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e.refcount = 1;
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e.text = false;
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e.resource = false;
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e.filename = filename;
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return e;
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}
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int FDEntry::close(int fd, bool force)
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{
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if (fd < 0 || fd >= FDTable.size())
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{
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errno = EBADF;
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return -1;
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}
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auto &e = FDTable[fd];
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if (!e.refcount)
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{
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errno = EBADF;
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return -1;
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}
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if (--e.refcount == 0 || force)
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{
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e.refcount = 0;
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return ::close(fd);
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}
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return 0;
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}
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ssize_t FDEntry::read(int fd, void *buffer, size_t count)
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{
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if (fd < 0 || fd >= FDTable.size())
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{
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errno = EBADF;
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return -1;
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}
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auto const &e = FDTable[fd];
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if (!e.refcount)
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{
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errno = EBADF;
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return -1;
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}
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// hmm... keep a current seek position?
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ssize_t size;
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if (e.text)
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{
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std::unique_ptr<uint8_t[]> trbuffer(new uint8_t[count]);
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size = ::read(fd, trbuffer.get(), count);
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if (size > 0)
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{
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std::transform(trbuffer.get(), trbuffer.get() + size, (uint8_t *)buffer,
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[](uint8_t c) { return c == '\n' ? '\r' : c; }
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);
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}
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}
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else
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{
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size = ::read(fd, buffer, count);
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}
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return size;
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}
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ssize_t FDEntry::write(int fd, const void *buffer, size_t count)
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{
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if (fd < 0 || fd >= FDTable.size())
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{
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errno = EBADF;
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return -1;
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}
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auto const &e = FDTable[fd];
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if (!e.refcount)
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{
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errno = EBADF;
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return -1;
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}
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// hmm... keep a current seek position?
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ssize_t size;
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if (e.text)
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{
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std::unique_ptr<uint8_t[]> trbuffer(new uint8_t[count]);
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if (count > 0)
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{
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std::transform((const uint8_t *)buffer, (const uint8_t *)buffer + count, trbuffer.get(),
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[](uint8_t c) { return c == '\r' ? '\n' : c; }
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);
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}
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size = ::write(fd, trbuffer.get(), count);
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}
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else
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{
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size = ::write(fd, buffer, count);
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}
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return size;
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}
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int FDEntry::open(const std::string &filename, int ioPermission, int fork)
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{
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int fd;
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if (filename.empty()) return MacOS::bdNamErr;
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int access = 0;
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// ignore the deny bits for now.
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switch(ioPermission & 0x0f)
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{
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case fsWrPerm:
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case fsRdWrPerm:
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case fsRdWrShPerm:
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case fsCurPerm:
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access = O_RDWR;
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break;
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case fsRdPerm:
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access = O_RDONLY;
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break;
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default:
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return MacOS::paramErr;
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break;
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}
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std::string xname = filename;
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if (fork) {
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xname.append(_PATH_RSRCFORKSPEC);
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// O_RDWR should also O_CREAT
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}
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Log(" open(%s, %04x)\n", xname.c_str(), access);
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fd = ::open(xname.c_str(), access);
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if (fd < 0 && access == O_RDWR && errno == ENOENT && fork)
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{
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fd = ::open(xname.c_str(), O_RDWR | O_CREAT, 0666);
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}
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if (fd < 0 && ioPermission == fsCurPerm && errno == EACCES)
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{
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fd = ::open(xname.c_str(), O_RDONLY);
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}
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if (fd < 0)
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{
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return macos_error_from_errno();
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}
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// allocate the fd entry
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auto &e = OS::Internal::FDEntry::allocate(fd, filename);
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e.resource = fork;
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e.text = fork ? false : IsTextFile(filename);
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|
|
return fd;
|
|
}
|
|
|
|
|
|
} }
|