Archive.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef ARCHIVE_H
#define ARCHIVE_H

#include "pedigree/kernel/processor/MemoryRegion.h"
#include "pedigree/kernel/processor/types.h"

class Archive
{
  public:
    Archive(uint8_t *pPhys, size_t sSize);
    ~Archive();

    size_t getNumFiles();

    size_t getFileSize(size_t n);

    char *getFileName(size_t n);

    uintptr_t *getFile(size_t n);

  private:
    struct ArchiveFile
    {
        char name[100];  // Filename.
        char mode[8];    // Permissions.
        char uid[8];     // User ID.
        char gid[8];     // Group ID.
        char size[12];   // Size, in bytes (octal)
        char mtime[12];  // Modification time.
        char chksum[8];  // Header checksum.
        char link;  // Link type: 0 = regular file, 1 = hard link, 2 = symlink.
        char linkname[100];  // Linked-to file name.
    };

    ArchiveFile *getFirst();
    ArchiveFile *getNext(ArchiveFile *pFile);
    ArchiveFile *get(size_t n);

#ifdef HOSTED
    uint8_t *m_pBase;
#else
    MemoryRegion m_Region;
#endif
};

#endif