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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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* gcc -framework ApplicationServices -l stdc++ -o asencode asencode.cpp
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#include <sys/types.h>
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#include <Carbon/Carbon.h>
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typedef struct ASFinderInfo
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FInfo ioFlFndrInfo; /* PBGetFileInfo() or PBGetCatInfo() */
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FXInfo ioFlXFndrInfo; /* PBGetCatInfo() (HFS only) */
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} ASFinderInfo; /* ASFinderInfo */
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#define EXIT_IF_FALSE(x) \
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printf("Assertion failure: %s\n" \
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#x, __FILE__, __LINE__); \
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// encodes a file with data and resource forks into a single
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// AppleSingle encoded file..
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static void append_file(FILE* output, const char* input_name)
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FILE* input = fopen(input_name, "rb");
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EXIT_IF_FALSE(input != NULL);
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size_t amount = fread(buffer, 1, sizeof(buffer), input);
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EXIT_IF_FALSE(feof(input) != 0);
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fwrite(buffer, 1, amount, output);
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int main(int argc, char** argv)
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printf("usage: %s input output\n", argv[0]);
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const char *input_name = argv[1];
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if (stat(input_name, &input_st) != 0) {
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printf("%s: can't open file `%s'\n", argv[0], input_name);
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if ((input_st.st_mode & S_IFMT) != S_IFREG) {
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printf("%s: file `%s' not a regular file\n", argv[0], input_name);
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strcpy(rez_name, input_name);
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strcat(rez_name, "/rsrc");
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EXIT_IF_FALSE(stat(rez_name, &rez_st) == 0);
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if (rez_st.st_size == 0) {
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printf("%s: no resource fork found on file `%s'\n", argv[0], argv[1]);
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FILE* output = fopen(argv[2], "wb");
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printf("%s: can't open file `%s'\n", argv[0], argv[2]);
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header.magic_number = 0x00051600;
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header.version_number = 0x00020000;
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EXIT_IF_FALSE(fwrite(&header, sizeof(header), 1, output) == 1);
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short entry_count = 5;
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EXIT_IF_FALSE(fwrite(&entry_count, sizeof(entry_count), 1, output) == 1);
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int create; /* file creation date/time */
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int modify; /* last modification date/time */
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int backup; /* last backup date/time */
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int access; /* last access date/time */
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char *name_buf = strdup(input_name);
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char *orig_name = basename(name_buf);
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int orig_name_len = strlen(orig_name);
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entry entries[entry_count];
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int header_end = sizeof(header) + sizeof(entry_count) + sizeof(entries);
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entries[0].id = 1; // data fork
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entries[0].offset = header_end;
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entries[0].length = input_st.st_size;
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entries[1].id = 2; // data fork
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entries[1].offset = entries[0].offset + entries[0].length;
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entries[1].length = rez_st.st_size;
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entries[2].id = 3; // file name
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entries[2].offset = entries[1].offset + entries[1].length;
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entries[2].length = orig_name_len;
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entries[3].id = 8; // file dates
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entries[3].offset = entries[2].offset + entries[2].length;
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entries[3].length = sizeof(dates);
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entries[4].id = 9; // finder info
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entries[4].offset = entries[3].offset + entries[3].length;
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entries[4].length = sizeof(ASFinderInfo);
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EXIT_IF_FALSE(fwrite(entries, sizeof(entry), entry_count, output) ==
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append_file(output, input_name);
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append_file(output, rez_name);
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EXIT_IF_FALSE(fwrite(orig_name, 1, orig_name_len, output) == orig_name_len);
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// Dates in an AppleSingle encoded file should be the number of
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// seconds since (or to) 00:00:00, January 1, 2000 UTC
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#define Y2K_SECONDS (946710000U)
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dates.create = input_st.st_ctime - Y2K_SECONDS;
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dates.modify = input_st.st_mtime - Y2K_SECONDS;
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dates.backup = 0x80000000; // earliest possible time
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dates.access = input_st.st_atime - Y2K_SECONDS;
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EXIT_IF_FALSE(fwrite(&dates, 1, sizeof(dates), output) == sizeof(dates));
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char abs_input_name[PATH_MAX];
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EXIT_IF_FALSE(realpath(input_name, abs_input_name) == abs_input_name);
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EXIT_IF_FALSE(FSPathMakeRef((unsigned char *)abs_input_name, &fsref, 0) == 0);
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FSCatalogInfo cat_info;
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memset(&cat_info, 0, sizeof(cat_info));
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EXIT_IF_FALSE(FSGetCatalogInfo(&fsref,
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kFSCatInfoGettableInfo,
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&cat_info, NULL, NULL, NULL) == 0);
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ASFinderInfo finder_info;
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memcpy(&finder_info.ioFlFndrInfo, &cat_info.finderInfo,
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sizeof(finder_info.ioFlFndrInfo));
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memcpy(&finder_info.ioFlXFndrInfo, &cat_info.extFinderInfo,
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sizeof(finder_info.ioFlXFndrInfo));
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EXIT_IF_FALSE(fwrite(&finder_info, 1, sizeof(finder_info), output) ==
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sizeof(finder_info));