mirror of
https://github.com/ksherlock/mpw.git
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139 lines
3.6 KiB
C++
139 lines
3.6 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 <cstring>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#define XATTR_FINDERINFO_NAME "com.apple.FinderInfo"
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#define XATTR_RESOURCEFORK_NAME "com.apple.ResourceFork"
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#define XATTR_FILETYPE_NAME "prodos.FileType"
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#define XATTR_AUXTYPE_NAME "prodos.AuxType"
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using namespace MacOS;
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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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int fd;
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uint32_t rv = 0;
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struct stat st;
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fd = attropen(path_name.c_str(), XATTR_RESOURCEFORK_NAME, O_RDONLY);
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if (fd >= 0) {
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if (fstat(fd, &st) == 0) rv = st.st_size;
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close(fd);
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}
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return rv;
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}
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}
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namespace native {
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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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std::memset(buffer, 0, sizeof(buffer));
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int fd;
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fd = attropen(path_name.c_str(), XATTR_FINDERINFO_NAME, O_RDONLY);
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if (fd >= 0) {
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ssize_t x = read(fd, buffer, 32);
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close(fd);
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if (x == 32 || x == 16){
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fixup_prodos_ftype(buffer);
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memcpy(info, buffer, extended ? 32 : 16);
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return 0;
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}
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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 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_ctime);
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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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if (S_ISDIR(st.st_mode)) {
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fi.type = file_info::directory;
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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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} |