mirror of
https://github.com/ksherlock/dot_clean.git
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support for cadius / nulib2 resource forks
This commit is contained in:
Kelvin Sherlock
parent
4a8fd4d9e8
commit
faec01b209
153
dot_clean.cpp
153
dot_clean.cpp
@ -94,6 +94,97 @@ void throw_errno(const std::string &what) {
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}
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void write_resource_fork(const std::string &parent_path, int parent_fd, void *data, size_t size) {
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#ifdef __sun__
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int rfd = openat(parent_fd, XATTR_RESOURCEFORK_NAME, O_XATTR | O_CREAT | O_TRUNC | O_WRONLY, 0666);
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if (rfd < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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defer close_fd([rfd](){ close(rfd); });
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if (!size) return;
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ssize_t ok = write(rfd, data, size);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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#endif
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#ifdef _WIN32
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std::string tmp = parent_path + ":" XATTR_RESOURCEFORK_NAME;
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int rfd = open(tmp.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
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if (rfd < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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defer close_fd([rfd](){ close(rfd); });
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if (!size) return;
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int ok = write(rfd, data, size);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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#endif
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#ifdef __linux__
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int ok = fsetxattr(parent_fd, XATTR_RESOURCEFORK_NAME, data, size, 0);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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#endif
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#ifdef __APPLE__
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int ok;
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ok = fremovexattr(parent_fd, XATTR_RESOURCEFORK_NAME, 0);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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if (!size) return;
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ok = fsetxattr(parent_fd, XATTR_RESOURCEFORK_NAME, data, size, 0, XATTR_CREATE);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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#endif
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}
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/*
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* resource is straight data (cadius, nulib2, etc)
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*/
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void one_flat_file(const std::string &data, const std::string rsrc) noexcept try {
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struct stat rsrc_st;
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int ok;
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if (_v) fprintf(stdout, "Merging %s & %s\n", rsrc.c_str(), data.c_str());
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ok = stat(data.c_str(), &rsrc_st);
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if (ok < 0) {
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if (errno == ENOENT) {
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if (_n) unlink_list.push_back(rsrc);
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return;
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}
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throw_errno("stat");
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}
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// don't try to do directories.
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if (S_ISDIR(rsrc_st.st_mode)) {
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if (!_p) unlink_list.push_back(rsrc);
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return;
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}
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int fd = open(data.c_str(), O_RDONLY | O_BINARY);
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if (fd < 0) {
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if (errno == ENOENT) {
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if (_n) unlink_list.push_back(rsrc);
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return;
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}
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throw_errno("open");
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}
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defer close_fd([fd]{close(fd); });
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if (stat(rsrc.c_str(), &rsrc_st) < 0) throw_errno("stat");
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if (rsrc_st.st_size == 0) {
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// truncate any existing resource fork.
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write_resource_fork(data, fd, nullptr, 0);
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if (!_p) unlink_list.push_back(rsrc);
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return;
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}
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mapped_file mf(rsrc, mapped_file::readonly, rsrc_st.st_size);
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write_resource_fork(data, fd, mf.data(), mf.size());
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if (!_p) unlink_list.push_back(rsrc);
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} catch (const std::exception &ex) {
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_rv = 1;
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fprintf(stderr, "Merging %s failed: %s\n", rsrc.c_str(), ex.what());
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}
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void one_file(const std::string &data, const std::string &rsrc) noexcept try {
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struct stat rsrc_st;
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@ -202,36 +293,7 @@ void one_file(const std::string &data, const std::string &rsrc) noexcept try {
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}
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#endif
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case AS_RESOURCE: {
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#ifdef __sun__
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int rfd = openat(fd, XATTR_RESOURCEFORK_NAME, O_XATTR | O_CREAT | O_TRUNC | O_WRONLY, 0666);
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if (rfd < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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defer close_fd([rfd](){ close(rfd); });
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ssize_t ok = write(rfd, mf.data() + e.entryOffset, e.entryLength);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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//if (ok != e.entryLength) return -1;
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#endif
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#ifdef _WIN32
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std::string tmp = data + ":" XATTR_RESOURCEFORK_NAME;
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int rfd = open(tmp.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
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if (rfd < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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defer close_fd([rfd](){ close(rfd); });
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int ok = write(rfd, mf.data() + e.entryOffset, e.entryLength);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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#endif
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#ifdef __linux__
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int ok = fsetxattr(fd, XATTR_RESOURCEFORK_NAME, mf.data() + e.entryOffset, e.entryLength, 0);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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#endif
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#ifdef __APPLE__
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int ok;
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ok = fremovexattr(fd, XATTR_RESOURCEFORK_NAME, 0);
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ok = fsetxattr(fd, XATTR_RESOURCEFORK_NAME, mf.data() + e.entryOffset, e.entryLength, 0, XATTR_CREATE);
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if (ok < 0) throw_errno(XATTR_RESOURCEFORK_NAME);
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#endif
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write_resource_fork(data, fd, mf.data()+ e.entryOffset, e.entryLength);
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break;
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}
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@ -281,6 +343,18 @@ void unlink_files(std::vector<std::string> &unlink_list) {
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unlink_list.clear();
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}
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std::string is_raw_resource_fork(const std::string &s) {
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auto l = s.length();
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if (l > 17 && !strncmp("_ResourceFork.bin", s.data() + l - 17, 17))
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return s.substr(0, l - 17);
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if (l > 6 && !strncmp("_rsrc_", s.data() + l - 6, 6))
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return s.substr(0, l - 6);
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return "";
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}
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void one_dir(std::string dir) noexcept {
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DIR *dirp;
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@ -340,23 +414,38 @@ void one_dir(std::string dir) noexcept {
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}
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}
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if (name.length() > 2 && name[0] == '.' && name[1] == '_') {
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one_file(dir + name.substr(2), dir + name);
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continue;
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}
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/* _ResourceFork.bin or _rsrc_ raw resource data . */
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std::string tmp = is_raw_resource_fork(name);
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if (!tmp.empty()) {
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one_flat_file(dir + tmp, dir + name);
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continue;
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}
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if (!_f && name[0] != '.') {
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std::string tmp = dir + name;
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#ifdef DT_DIR
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if (dp->d_type == DT_DIR)
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if (dp->d_type == DT_DIR) {
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dir_list.push_back(tmp);
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continue;
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}
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#else
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struct stat st;
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if (stat(tmp.c_str(), &st) == 0 && S_ISDIR(st.st_mode))
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if (stat(tmp.c_str(), &st) == 0 && S_ISDIR(st.st_mode)) {
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dir_list.push_back(tmp);
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continue;
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}
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#endif
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}
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}
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closedir(dirp);
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} else {
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@ -55,17 +55,17 @@ namespace {
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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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$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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