mirror of
https://github.com/ksherlock/mpw.git
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408 lines
9.6 KiB
C++
408 lines
9.6 KiB
C++
/*
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* Copyright (c) 2016, 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 "native_internal.h"
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#include <sys/attr.h>
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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 <unistd.h>
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#include <fcntl.h>
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#include "config.h"
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#include <include/endian.h>
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//using MacOS::macos_error_from_errno;
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//using MacOS::macos_error;
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using namespace MacOS;
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// pre 10.5 I guess...
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#ifndef HAVE_STAT_ST_BIRTHTIME
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#undef st_birthtime
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#define st_birthtime st_ctime
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#endif
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namespace {
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uint32_t rforksize(const std::string &path_name)
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{
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ssize_t rv;
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rv = getxattr(path_name.c_str(), XATTR_RESOURCEFORK_NAME, nullptr, 0, 0, 0);
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if (rv < 0) return 0;
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return rv;
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}
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/*
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uint32_t rforksize(int fd)
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{
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ssize_t rv;
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rv = fgetxattr(fd, XATTR_RESOURCEFORK_NAME, nullptr, 0, 0, 0);
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if (rv < 0) return 0;
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return rv;
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}
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*/
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}
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namespace native {
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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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macos_error get_finder_info(const std::string &path_name, void *info, bool extended) {
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uint8_t buffer[32];
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int rv;
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std::memset(buffer, 0, sizeof(buffer));
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rv = getxattr(path_name.c_str(), XATTR_FINDERINFO_NAME, buffer, 32, 0, 0);
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if (rv == 16 || rv == 32) {
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prodos_ftype_out(buffer);
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memcpy(info, buffer, extended ? 32 : 16);
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return noErr;
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}
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if (rv < 0) {
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switch (errno) {
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case ENOATTR:
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case ENOTSUP:
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break;
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default:
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return macos_error_from_errno();
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}
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}
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/* finder info does not exist */
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/* 1. check prodos ftype/aux type */
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uint8_t ftype;
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uint16_t atype;
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int rv1 = ::getxattr(path_name.c_str(), "prodos.FileType", &ftype, 1, 0, 0);
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int rv2 = ::getxattr(path_name.c_str(), "prodos.AuxType", &atype, 2, 0, 0);
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if (rv1 == 1 && rv2 == 2) {
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ftype = le16toh(ftype);
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memcpy(buffer, "pxxxpdos", 8);
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buffer[1] = (char)ftype;
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buffer[2] = (char)((atype >> 8) & 0xff);
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buffer[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(buffer, "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(buffer, "TEXT", 4);
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break;
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case 0xff:
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std::memcpy(buffer, "PSYS", 4);
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break;
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case 0xd7:
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std::memcpy(buffer, "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(buffer, "AIFF", 4);
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break;
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case 0x0001:
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std::memcpy(buffer, "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(buffer, "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(buffer, "PS16", 4); // verify dumpobj.
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break;
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}
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}
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prodos_ftype_out(buffer);
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memcpy(info, buffer, extended ? 32 : 16);
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return noErr;
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}
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/* if it's a text file, call it a text file */
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if (is_text_file_internal(path_name)) {
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memcpy(buffer, "TEXTMPS ", 8);
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}
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memcpy(info, buffer, extended ? 32 : 16);
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return noErr;
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}
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macos_error set_finder_info(const std::string &path_name, const void *info, bool extended) {
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uint8_t buffer[32];
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ssize_t rv;
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std::memset(buffer, 0, sizeof(buffer));
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if (extended) {
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std::memcpy(buffer, info, 32);
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} else {
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get_finder_info(path_name, buffer, true);
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std::memcpy(buffer, info, 16);
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}
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prodos_ftype_in(buffer);
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rv = setxattr(path_name.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 noErr;
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}
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macos_error get_file_info(const std::string &path_name, file_info &fi)
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{
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struct stat st;
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if (stat(path_name.c_str(), &st) < 0)
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return macos_error_from_errno();
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fi.create_date = unix_to_mac(st.st_birthtime);
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fi.modify_date = unix_to_mac(st.st_mtime);
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fi.backup_date = 0;
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fi.attributes = 0;
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if (S_ISDIR(st.st_mode)) {
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fi.type = file_info::directory;
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fi.attributes = 1 << 4;
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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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fi.entry_count = links;
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return noErr;
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}
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// todo -- get actual block size instead of assuming 512. oh well!
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fi.type = file_info::file;
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fi.data_logical_size = st.st_size;
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fi.data_physical_size = (st.st_size + 511) & ~511;
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fi.resource_physical_size = 0;
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fi.resource_logical_size = 0;
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get_finder_info(path_name, fi.finder_info);
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ssize_t rsize = rforksize(path_name);
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if (rsize > 0) {
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fi.resource_physical_size = rsize;
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fi.resource_logical_size = (rsize + 511) & ~511;
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}
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return noErr;
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}
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macos_error set_file_info(const std::string &path_name, const file_info &fi) {
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struct stat st;
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if (stat(path_name.c_str(), &st) < 0) return macos_error_from_errno();
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if (S_ISREG(st.st_mode)) {
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auto rv = set_finder_info(path_name, fi.finder_info);
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if (rv) return rv;
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}
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time_t create_date = fi.create_date ? mac_to_unix(fi.create_date) : 0;
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time_t modify_date = fi.modify_date ? mac_to_unix(fi.modify_date) : 0;
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time_t backup_date = fi.backup_date ? mac_to_unix(fi.backup_date) : 0;
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// todo -- value of 0 == set to current date/time?
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if (create_date == st.st_birthtime) create_date = 0;
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if (modify_date == st.st_mtime) modify_date = 0;
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// try setattr list.
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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 (create_date)
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{
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dates[i++].tv_sec = create_date;
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list.commonattr |= ATTR_CMN_CRTIME;
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}
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if (fi.modify_date)
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{
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dates[i++].tv_sec = modify_date;
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list.commonattr |= ATTR_CMN_MODTIME;
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}
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if (backup_date)
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{
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dates[i++].tv_sec = backup_date;
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list.commonattr |= ATTR_CMN_BKUPTIME;
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}
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if (!i) return noErr;
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rv = setattrlist(path_name.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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rv = 0;
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if (modify_date) {
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tv[0].tv_sec = st.st_atime;
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tv[1].tv_sec = modify_date;
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rv = utimes(path_name.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 noErr;
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}
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tool_return<file_ptr> open_resource_fork(const std::string &path_name, int oflag) {
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std::string rname = path_name + _PATH_RSRCFORKSPEC;
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// todo -- verify behavior on non-hfs volume.
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//if ((oflag & O_ACCMODE) & O_WRONLY) oflag |= O_CREAT;
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// under apfs, resource fork needs to be specifically created.
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// (if 0-length, it doesn't actually exist...)
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// apfs -- zero-length resource fork
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int parent;
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if (oflag & O_CREAT) {
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int excl = oflag & O_EXCL;
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parent = open(path_name.c_str(), O_RDONLY | O_CREAT | excl, 0666);
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} else {
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parent = open(path_name.c_str(), O_RDONLY);
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}
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if (parent < 0) return macos_error_from_errno();
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close(parent);
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oflag &= ~(O_CREAT | O_EXCL);
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int mode = oflag & O_ACCMODE;
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if (mode == O_WRONLY || mode == O_RDWR) oflag |= O_CREAT;
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int fd = open(rname.c_str(), oflag, 0666);
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if (fd < 0) {
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auto e = macos_error_from_errno();
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if (errno == ENOENT && mode == O_RDONLY) {
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auto tmp = new empty_file(path_name);
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tmp->resource = true;
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return file_ptr(tmp);
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}
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return e;
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}
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auto tmp = new fd_file(path_name, fd);
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tmp->resource = true;
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return file_ptr(tmp);
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}
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} |