/*
 Derived from source code of TrueCrypt 7.1a, which is
 Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
 by the TrueCrypt License 3.0.

 Modifications and additions to the original source code (contained in this file)
 and all other portions of this file are Copyright (c) 2013-2017 IDRIX
 and are governed by the Apache License 2.0 the full text of which is
 contained in the file License.txt included in VeraCrypt binary and source
 code distribution packages.
*/

#include <fstream>
#include <stdio.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/ucred.h>
#include <sys/mount.h>
#include <sys/wait.h>
#include "CoreFreeBSD.h"
#include "Core/Unix/CoreServiceProxy.h"

namespace VeraCrypt
{
	CoreFreeBSD::CoreFreeBSD ()
	{
	}

	CoreFreeBSD::~CoreFreeBSD ()
	{
	}

	DevicePath CoreFreeBSD::AttachFileToLoopDevice (const FilePath &filePath, bool readOnly) const
	{
		list <string> args;
		args.push_back ("-a");
		args.push_back ("-t");
		args.push_back ("vnode");

		if (readOnly)
		{
			args.push_back ("-o");
			args.push_back ("readonly");
		}

		args.push_back ("-f");
		args.push_back (filePath);

		string dev = StringConverter::Trim (Process::Execute ("mdconfig", args));

		if (dev.find ("/") == string::npos)
			dev = string ("/dev/") + dev;

		return dev;
	}

	void CoreFreeBSD::DetachLoopDevice (const DevicePath &devicePath) const
	{
		list <string> args;
		args.push_back ("-d");
		args.push_back ("-u");
		args.push_back (StringConverter::GetTrailingNumber (devicePath));

		for (int t = 0; true; t++)
		{
			try
			{
				Process::Execute ("mdconfig", args);
				break;
			}
			catch (ExecutedProcessFailed&)
			{
				if (t > 5)
					throw;
				Thread::Sleep (200);
			}
		}
	}

	HostDeviceList CoreFreeBSD::GetHostDevices (bool pathListOnly) const
	{
		HostDeviceList devices;
#ifdef TC_MACOSX
		const string busType = "rdisk";
#else
		foreach (const string &busType, StringConverter::Split ("ad da"))
#endif
		{
			for (int devNumber = 0; devNumber < 64; devNumber++)
			{
				stringstream devPath;
				devPath << "/dev/" << busType << devNumber;

				if (FilesystemPath (devPath.str()).IsBlockDevice() || FilesystemPath (devPath.str()).IsCharacterDevice())
				{
					make_shared_auto (HostDevice, device);
					device->Path = devPath.str();
					if .highlight .hll { background-color: #ffffcc }
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.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
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.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
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.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
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.highlight .na { color: #336699 } /* Name.Attribute */
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.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/*
  zip_source_filep.c -- create data source from FILE *
  Copyright (C) 1999-2019 Dieter Baron and Thomas Klausner

  This file is part of libzip, a library to manipulate ZIP archives.
  The authors can be contacted at <libzip@nih.at>

  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.
  3. The names of the authors may not be used to endorse or promote
     products derived from this software without specific prior
     written permission.

  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>

#include "zipint.h"

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef HAVE_CLONEFILE
#include <sys/attr.h>
#include <sys/clonefile.h>
#define CAN_CLONE
#endif
#ifdef HAVE_FICLONERANGE
#include <linux/fs.h>
#include <sys/ioctl.h>
#define CAN_CLONE
#endif

#ifdef _WIN32
/* WIN32 needs <fcntl.h> for _O_BINARY */
#include <fcntl.h>
#endif

/* Windows sys/types.h does not provide these */
#ifndef S_ISREG
#define S_ISREG(m) (((m)&S_IFMT) == S_IFREG)
#endif
#if defined(S_IXUSR) && defined(S_IRWXG) && defined(S_IRWXO)
#define _SAFE_MASK (S_IXUSR | S_IRWXG | S_IRWXO)
#elif defined(_S_IWRITE)
#define _SAFE_MASK (_S_IWRITE)
#else
#error do not know safe values for umask, please report this
#endif

#ifdef _MSC_VER
/* MSVC doesn't have mode_t */
typedef int mode_t;
#endif

struct read_file {
    zip_error_t error; /* last error information */
    zip_int64_t supports;

    /* reading */
    char *fname;            /* name of file to read from */
    FILE *f;                /* file to read from */
    struct zip_stat st;     /* stat information passed in */
    zip_error_t stat_error; /* error returned for stat */
    zip_uint64_t start;     /* start offset of data to read */
    zip_uint64_t end;       /* end offset of data to read relative to start, 0 for up to EOF */
    zip_uint64_t current;   /* current offset relative to start (0 is beginning of part we read) */

    /* writing */
    char *tmpname;
    FILE *fout;
};

static zip_int64_t read_file(void *state, void *data, zip_uint64_t len, zip_source_cmd_t cmd);
static int create_temp_output(struct read_file *ctx);
#ifdef CAN_CLONE
static zip_int64_t create_temp_output_cloning(struct read_file *ctx, zip_uint64_t offset);
#endif
static int _zip_fseek_u(FILE *f, zip_uint64_t offset, int whence, zip_error_t *error);
static int _zip_fseek(FILE *f, zip_int64_t offset, int whence, zip_error_t *error);


ZIP_EXTERN zip_source_t *
zip_source_filep(zip_t *za, FILE *file, zip_uint64_t