/*-

 * Copyright (c) 2003-2007 Tim Kientzle

 * Copyright (c) 2015 Okhotnikov Kirill

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#include "archive_platform.h"

__FBSDID("$FreeBSD: head/lib/libarchive/archive_write_set_format_by_name.c 201168 2009-12-29 06:15:32Z kientzle $");

#ifdef HAVE_SYS_TYPES_H

#include <sys/types.h>

#endif

#ifdef HAVE_ERRNO_H

#include <errno.h>

#endif

#ifdef HAVE_STRING_H

#include <string.h>

#endif

#include "archive.h"

#include "archive_private.h"

/* A table that maps names to functions. */

static const

struct { const char *name; int (*format)(struct archive *); int (*filter)(struct archive *);  } names[] =

{

	{ ".7z",	archive_write_set_format_7zip,            archive_write_add_filter_none},

	{ ".zip",	archive_write_set_format_zip,             archive_write_add_filter_none},

	{ ".jar",	archive_write_set_format_zip,             archive_write_add_filter_none},

	{ ".cpio",	archive_write_set_format_cpio,            archive_write_add_filter_none},

	{ ".iso",	archive_write_set_format_iso9660,         archive_write_add_filter_none},

#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__)

	{ ".a",	        archive_write_set_format_ar_bsd,          archive_write_add_filter_none},

	{ ".ar",	archive_write_set_format_ar_bsd,          archive_write_add_filter_none},

#else         

	{ ".a",	        archive_write_set_format_ar_svr4,         archive_write_add_filter_none},

	{ ".ar",	archive_write_set_format_ar_svr4,         archive_write_add_filter_none},

#endif        

	{ ".tar",	archive_write_set_format_pax_restricted,  archive_write_add_filter_none},

	{ ".tgz",	archive_write_set_format_pax_restricted,  archive_write_add_filter_gzip},

	{ ".tar.gz",	archive_write_set_format_pax_restricted,  archive_write_add_filter_gzip},

	{ ".tar.bz2",	archive_write_set_format_pax_restricted,  archive_write_add_filter_bzip2},

	{ ".tar.xz",	archive_write_set_format_pax_restricted,  archive_write_add_filter_xz},

	{ NULL,		NULL,                             NULL }

};

static 

int cmpsuff(const char *str, const char *suffix)

{

  size_t length_str, length_suffix;

  if ((str == NULL) || (suffix == NULL))

    return -1;

  length_str = strlen(str);

  length_suffix = strlen(suffix);

  if (length_str >= length_suffix) {

    return strcmp(str + (length_str - length_suffix), suffix);

  } else {

    return -1;

  }

}

static int get_array_index(const char *name)

{

  int i;

  for (i = 0; names[i].name != NULL; i++) 

  {

    if (cmpsuff(name, names[i].name) == 0)

      return i;

  }    

  return -1;

}

int

archive_write_set_format_filter_by_ext(struct archive *a, const char *filename)

{

  int names_index = get_array_index(filename);

  if (names_index >= 0)

  {  

    int format_state = (names[names_index].format)(a);

    if (format_state == ARCHIVE_OK)

      return ((names[names_index].filter)(a));

    else

      return format_state;

  }    

  archive_set_error(a, EINVAL, "No such format '%s'", filename);

  a->state = ARCHIVE_STATE_FATAL;

  return (ARCHIVE_FATAL);

}

int

archive_write_set_format_filter_by_ext_def(struct archive *a, const char *filename, const char * def_ext)

{

  int names_index = get_array_index(filename);

  if (names_index < 0)

    names_index = get_array_index(def_ext);

  if (names_index >= 0)

  {  

    int format_state = (names[names_index].format)(a);

    if (format_state == ARCHIVE_OK)

      return ((names[names_index].filter)(a));

    else

      return format_state;

  }    

  archive_set_error(a, EINVAL, "No such format '%s'", filename);

  a->state = ARCHIVE_STATE_FATAL;

  return (ARCHIVE_FATAL);

}