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Diffstat (limited to 'src/archive/Iso9660ArchivePlugin.cxx')
| -rw-r--r-- | src/archive/Iso9660ArchivePlugin.cxx | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/src/archive/Iso9660ArchivePlugin.cxx b/src/archive/Iso9660ArchivePlugin.cxx deleted file mode 100644 index ad21d4a3d..000000000 --- a/src/archive/Iso9660ArchivePlugin.cxx +++ /dev/null @@ -1,260 +0,0 @@ -/* - * Copyright (C) 2003-2013 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -/** - * iso archive handling (requires cdio, and iso9660) - */ - -#include "config.h" -#include "Iso9660ArchivePlugin.hxx" -#include "ArchivePlugin.hxx" -#include "ArchiveFile.hxx" -#include "ArchiveVisitor.hxx" -#include "InputStream.hxx" -#include "InputPlugin.hxx" -#include "util/RefCount.hxx" -#include "util/Error.hxx" -#include "util/Domain.hxx" - -#include <cdio/cdio.h> -#include <cdio/iso9660.h> - -#include <stdlib.h> -#include <string.h> - -#define CEILING(x, y) ((x+(y-1))/y) - -class Iso9660ArchiveFile final : public ArchiveFile { -public: - RefCount ref; - - iso9660_t *iso; - - Iso9660ArchiveFile(iso9660_t *_iso) - :ArchiveFile(iso9660_archive_plugin), iso(_iso) {} - - ~Iso9660ArchiveFile() { - iso9660_close(iso); - } - - void Unref() { - if (ref.Decrement()) - delete this; - } - - void Visit(const char *path, ArchiveVisitor &visitor); - - virtual void Close() override { - Unref(); - } - - virtual void Visit(ArchiveVisitor &visitor) override; - - virtual InputStream *OpenStream(const char *path, - Mutex &mutex, Cond &cond, - Error &error) override; -}; - -extern const InputPlugin iso9660_input_plugin; - -static constexpr Domain iso9660_domain("iso9660"); - -/* archive open && listing routine */ - -inline void -Iso9660ArchiveFile::Visit(const char *psz_path, ArchiveVisitor &visitor) -{ - CdioList_t *entlist; - CdioListNode_t *entnode; - iso9660_stat_t *statbuf; - char pathname[4096]; - - entlist = iso9660_ifs_readdir (iso, psz_path); - if (!entlist) { - return; - } - /* Iterate over the list of nodes that iso9660_ifs_readdir gives */ - _CDIO_LIST_FOREACH (entnode, entlist) { - statbuf = (iso9660_stat_t *) _cdio_list_node_data (entnode); - - strcpy(pathname, psz_path); - strcat(pathname, statbuf->filename); - - if (iso9660_stat_s::_STAT_DIR == statbuf->type ) { - if (strcmp(statbuf->filename, ".") && strcmp(statbuf->filename, "..")) { - strcat(pathname, "/"); - Visit(pathname, visitor); - } - } else { - //remove leading / - visitor.VisitArchiveEntry(pathname + 1); - } - } - _cdio_list_free (entlist, true); -} - -static ArchiveFile * -iso9660_archive_open(const char *pathname, Error &error) -{ - /* open archive */ - auto iso = iso9660_open(pathname); - if (iso == nullptr) { - error.Format(iso9660_domain, - "Failed to open ISO9660 file %s", pathname); - return nullptr; - } - - return new Iso9660ArchiveFile(iso); -} - -void -Iso9660ArchiveFile::Visit(ArchiveVisitor &visitor) -{ - Visit("/", visitor); -} - -/* single archive handling */ - -struct Iso9660InputStream { - InputStream base; - - Iso9660ArchiveFile *archive; - - iso9660_stat_t *statbuf; - size_t max_blocks; - - Iso9660InputStream(Iso9660ArchiveFile &_archive, const char *uri, - Mutex &mutex, Cond &cond, - iso9660_stat_t *_statbuf) - :base(iso9660_input_plugin, uri, mutex, cond), - archive(&_archive), statbuf(_statbuf), - max_blocks(CEILING(statbuf->size, ISO_BLOCKSIZE)) { - - base.ready = true; - base.size = statbuf->size; - - archive->ref.Increment(); - } - - ~Iso9660InputStream() { - free(statbuf); - archive->Unref(); - } -}; - -InputStream * -Iso9660ArchiveFile::OpenStream(const char *pathname, - Mutex &mutex, Cond &cond, - Error &error) -{ - auto statbuf = iso9660_ifs_stat_translate(iso, pathname); - if (statbuf == nullptr) { - error.Format(iso9660_domain, - "not found in the ISO file: %s", pathname); - return nullptr; - } - - Iso9660InputStream *iis = - new Iso9660InputStream(*this, pathname, mutex, cond, - statbuf); - return &iis->base; -} - -static void -iso9660_input_close(InputStream *is) -{ - Iso9660InputStream *iis = (Iso9660InputStream *)is; - - delete iis; -} - - -static size_t -iso9660_input_read(InputStream *is, void *ptr, size_t size, - Error &error) -{ - Iso9660InputStream *iis = (Iso9660InputStream *)is; - int readed = 0; - int no_blocks, cur_block; - size_t left_bytes = iis->statbuf->size - is->offset; - - size = (size * ISO_BLOCKSIZE) / ISO_BLOCKSIZE; - - if (left_bytes < size) { - no_blocks = CEILING(left_bytes,ISO_BLOCKSIZE); - } else { - no_blocks = size / ISO_BLOCKSIZE; - } - if (no_blocks > 0) { - - cur_block = is->offset / ISO_BLOCKSIZE; - - readed = iso9660_iso_seek_read (iis->archive->iso, ptr, - iis->statbuf->lsn + cur_block, no_blocks); - - if (readed != no_blocks * ISO_BLOCKSIZE) { - error.Format(iso9660_domain, - "error reading ISO file at lsn %lu", - (unsigned long)cur_block); - return 0; - } - if (left_bytes < size) { - readed = left_bytes; - } - - is->offset += readed; - } - return readed; -} - -static bool -iso9660_input_eof(InputStream *is) -{ - return is->offset == is->size; -} - -/* exported structures */ - -static const char *const iso9660_archive_extensions[] = { - "iso", - nullptr -}; - -const InputPlugin iso9660_input_plugin = { - nullptr, - nullptr, - nullptr, - nullptr, - iso9660_input_close, - nullptr, - nullptr, - nullptr, - nullptr, - iso9660_input_read, - iso9660_input_eof, - nullptr, -}; - -const struct archive_plugin iso9660_archive_plugin = { - "iso", - nullptr, - nullptr, - iso9660_archive_open, - iso9660_archive_extensions, -}; 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