.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.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 */
.highlight .c1 { color: #888888 } /* Comment.Single */
.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 */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.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 */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.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 */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/*
 Legal Notice: Some portions of the source code contained in this file were
 derived from the source code of TrueCrypt 7.1a, which is
 Copyright (c) 2003-2012 TrueCrypt Developers Association and which is
 governed by the TrueCrypt License 3.0, also from the source code of
 Encryption for the Masses 2.02a, which is Copyright (c) 1998-2000 Paul Le Roux
 and which is governed by the 'License Agreement for Encryption for the Masses'
 Modifications and additions to the original source code (contained in this file)
 and all other portions of this file are Copyright (c) 2013-2016 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. */

#ifndef SETUP_H
#define SETUP_H

#ifdef __cplusplus
extern "C" {
#endif

// Specifies what files to install, where (determined by the prefix), and in what order
static wchar_t *szFiles[]=
{
	L"ALicense.txt",
	L"ALICENSE",
	L"ANOTICE",
	L"AVeraCrypt.exe",
	L"AVeraCryptExpander.exe",
	L"AVeraCrypt Format.exe",
	L"AVeraCrypt-x86.exe",
	L"AVeraCryptExpander-x86.exe",
	L"AVeraCrypt Format-x86.exe",
	L"AVeraCrypt-x64.exe",
	L"AVeraCryptExpander-x64.exe",
	L"AVeraCrypt Format-x64.exe",
	L"Averacrypt.sys",
	L"Averacrypt-x64.sys",
	L"Dveracrypt.sys",
	L"AVeraCrypt Setup.exe",
	L"XLanguages.zip",
	L"Xdocs.zip",
};

// Specifies what files are included in self-extracting packages (no other files will be packaged or extracted).
static wchar_t *szCompressedFiles[]=
{
	L"License.txt",
	L"LICENSE",
	L"NOTICE",
	L"VeraCrypt.exe",
	L"VeraCryptExpander.exe",
	L"VeraCrypt Format.exe",
	L"VeraCrypt-x64.exe",
	L"VeraCryptExpander-x64.exe",
	L"VeraCrypt Format-x64.exe",
	L"veracrypt.sys",
	L"veracrypt-x64.sys",
	L"Languages.zip",
	L"docs.zip"
};

#define FILENAME_64BIT_DRIVER	L"veracrypt-x64.sys"
#define NBR_COMPRESSED_FILES (sizeof(szCompressedFiles) / sizeof(szCompressedFiles[0]))

void localcleanup (void);
BOOL StatDeleteFile ( wchar_t *lpszFile, BOOL bCheckForOldFile );
BOOL StatRemoveDirectory ( wchar_t *lpszDir );
HRESULT CreateLink ( wchar_t *lpszPathObj , wchar_t *lpszArguments , wchar_t *lpszPathLink );
void GetProgramPath ( HWND hwndDlg , wchar_t *path );
void StatusMessage (HWND hwndDlg, char *stringId);
void StatusMessageParam (HWND hwndDlg, char *stringId, const wchar_t *param);
void ClearLogWindow (HWND hwndDlg);
void RegMessage ( HWND hwndDlg , const wchar_t *txt );
void RegRemoveMessage (HWND hwndDlg, const wchar_t *txt);
void _cdecl CopyMessage ( HWND hwndDlg , const wchar_t *txt );
void RemoveMessage ( HWND hwndDlg , const wchar_t *txt );
void IconMessage ( HWND hwndDlg , const wchar_t *txt );
static int CALLBACK BrowseCallbackProc ( HWND hwnd , UINT uMsg , LPARAM lp , LPARAM pData );
void LoadLicense ( HWND hwndDlg );
void DetermineUpgradeDowngradeStatus (BOOL bCloseDriverHandle, LONG *driverVersionPtr);
BOOL DoFilesInstall ( HWND hwndDlg , wchar_t *szDestDir );
BOOL DoRegInstall ( HWND hwndDlg , wchar_t *szDestDir , BOOL bInstallType );
BOOL DoRegUninstall (HWND hwndDlg, BOOL bRemoveDeprecated);
BOOL DoServiceUninstall ( HWND hwndDlg , wchar_t *lpszService );
BOOL DoDriverUnload ( HWND hwndDlg );
BOOL DoShortcutsInstall ( HWND hwndDlg , wchar_t *szDestDir , BOOL bProgGroup, BOOL bDesktopIcon );
BOOL DoShortcutsUninstall (HWND hwndDlg, wchar_t *szDestDir);
void OutcomePrompt ( HWND hwndDlg , BOOL bOK );
void DoUninstall ( void *hwndDlg );
void DoInstall ( void *hwndDlg );
void SetInstallationPath (HWND hwndDlg);
BOOL UpgradeBootLoader (HWND hwndDlg);
BOOL CALLBACK InstallDlgProc ( HWND hwndDlg , UINT msg , WPARAM wParam , LPARAM lParam );

extern BOOL bDevm;
extern BOOL Rollback;
extern BOOL bUpgrade;
extern BOOL bPossiblyFirstTimeInstall;
extern BOOL bRepairMode;
extern BOOL bReinstallMode;
extern BOOL bSystemRestore;
extern BOOL bDisableSwapFiles;
extern BOOL bForAllUsers;
extern BOOL bRegisterFileExt;
extern BOOL bAddToStartMenu;
extern BOOL bDeskt
/*
  zip_close.c -- close zip archive and update changes
  Copyright (C) 1999-2020 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 "zipint.h"

#include <stdio.h>
#include <stdlib.h>
#ifdef _WIN32
#include <fcntl.h>
#include <io.h>
#endif


static int add_data(zip_t *, zip_source_t *, zip_dirent_t *, zip_uint32_t);
static int copy_data(zip_t *, zip_uint64_t);
static int copy_source(zip_t *, zip_source_t *, zip_int64_t);
static int write_cdir(zip_t *, const zip_filelist_t *, zip_uint64_t);
static int write_data_descriptor(zip_t *za, const zip_dirent_t *dirent, int is_zip64);

ZIP_EXTERN int
zip_close(zip_t *za) {
    zip_uint64_t i, j, survivors, unchanged_offset;
    zip_int64_t off;
    int error;
    zip_filelist_t *filelist;
    int changed;

    if (za == NULL)
	return -1;

    changed = _zip_changed(za, &survivors);

    /* don't create zip files with no entries */
    if (survivors == 0) {
	if ((za->open_flags & ZIP_TRUNCATE) || changed) {
	    if (zip_source_remove(za->src) < 0) {
		if (!((zip_error_code_zip(zip_source_error(za->src)) == ZIP_ER_REMOVE) && (zip_error_code_system(zip_source_error(za->src)) == ENOENT))) {
		    _zip_error_set_from_source(&za->error, za->src);
		    return -1;
		}
	    }
	}
	zip_discard(za);
	return 0;
    }

    if (!changed) {
	zip_discard(za);
	return 0;
    }

    if (survivors > za->nentry) {
	zip_error_set(&za->error, ZIP_ER_INTERNAL, 0);
	return -1;
    }

    if ((filelist = (zip_filelist_t *)malloc(sizeof(filelist[0]) * (size_t)survivors)) == NULL)
	return -1;

    unchanged_offset = ZIP_UINT64_MAX;
    /* create list of files with index into original archive  */
    for (i = j = 0; i < za->nentry; i++) {
	if (za->entry[i].orig != NULL && ZIP_ENTRY_HAS_CHANGES(&za->entry[i])) {
	    unchanged_offset = ZIP_MIN(unchanged_offset, za->entry[i].orig->offset);
	}
	if (za->entry[i].deleted) {
	    continue;
	}

	if (j >= survivors) {
	    free(filelist);
	    zip_error_set(&za->error, ZIP_ER_INTERNAL, 0);
	    return -1;
	}

	filelist[j].idx = i;
	j++;
    }
    if (j < survivors) {
	free(filelist);
	zip_error_set(&za->error, ZIP_ER_INTERNAL, 0);
	return -1;
    }

    if ((zip_source_supports(za->src) & ZIP_SOURCE_MAKE_COMMAND_BITMASK(ZIP_SOURCE_BEGIN_WRITE_CLONING)) == 0) {
	unchanged_offset = 0;
    }
    else {
	if (unchanged_offset == ZIP_UINT64_MAX) {
	    /* we're keeping all file data, find the end of the last one */
	    zip_uint64_t last_index = ZIP_UINT64_MAX;
	    unchanged_offset = 0;

	    for (i = 0; i < za->nentry; i++) {
		if (za->entry[i].orig != NULL) {
		    if (za->entry[i].orig->offset >= unchanged_offset) {
			unchanged_offset = za->entry[i].orig->offset;
			last_index = i;
		    }
		}
	    }
	    if (last_index != ZIP_UINT64_MAX) {
		if ((unchanged_offset = _zip_file_get_end(za, last_index, &za->error)) == 0) {
		    free(filelist);
		    return -1;
		}
	    }
	}
	if (unchanged_offset > 0) {
	    if (zip_source_begin_write_cloning(za->src, unchanged_offset) < 0) {
		/* cloning not supported, need to copy everything */
		unchanged_offset = 0;
	    }
	}
    }
    if (unchanged_offset == 0) {
	if (zip_source_begin_write(za->src) < 0) {
	    _zip_error_set_from_source(&za->error, za->src);
	    free(filelist);
	    return -1;
	}
    }

    if (_zip_progress_start(za->progress) != 0) {
	zip_error_set(&za->error, ZIP_ER_CANCELLED, 0);
	zip_source_rollback_write(za->src);
	free(filelist);
	return -1;
    }
    error = 0;
    for (j = 0; j < survivors; j++) {
	int new_data;
	zip_entry_t *entry;
	zip_dirent_t *de;

	if (_zip_progress_subrange(za->progress, (double)j / (double)survivors, (double)(j + 1) / (double)survivors) != 0) {
	    zip_error_set(&za->error, ZIP_ER_CANCELLED, 0);
	    error = 1;
	    break;
	}

	i = filelist[j].idx;
	entry = za->entry + i;

	if (entry->orig != NULL && entry->orig->offset < unchanged_offset) {
	    /* already implicitly copied by cloning */
	    continue;
	}

	new_data = (ZIP_ENTRY_DATA_CHANGED(entry) || ZIP_ENTRY_CHANGED(entry, ZIP_DIRENT_COMP_METHOD) || ZIP_ENTRY_CHANGED(entry, ZIP_DIRENT_ENCRYPTION_METHOD));

	/* create new local directory entry */
	if (entry->changes == NULL) {
	    if ((entry->changes = _zip_dirent_clone(entry->orig)) == NULL) {
		zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
		error = 1;
		break;
	    }
	}
	de = entry->changes;

	if (_zip_read_local_ef(za, i) < 0) {
	    error = 1;
	    break;
	}

	if ((off = zip_source_tell_write(za->src)) < 0) {
            _zip_error_set_from_source(&za->error, za->src);
	    error = 1;
	    break;
	}
	de->offset = (zip_uint64_t)off;

	if (new_data) {
	    zip_source_t *zs;

	    zs = NULL;
	    if (!ZIP_ENTRY_DATA_CHANGED(entry)) {
		if ((zs = _zip_source_zip_new(za, za, i, ZIP_FL_UNCHANGED, 0, 0, NULL)) == NULL) {
		    error = 1;
		    break;
		}
	    }

	    /* add_data writes dirent */
	    if (add_data(za, zs ? zs : entry->source, de, entry->changes ? entry->changes->changed : 0) < 0) {
		error = 1;
		if (zs)
		    zip_source_free(zs);
		break;
	    }
	    if (zs)
		zip_source_free(zs);
	}
	else {
	    zip_uint64_t offset;

	    if (de->encryption_method != ZIP_EM_TRAD_PKWARE) {
		/* when copying data, all sizes are known -> no data descriptor needed */
		/* except for PKWare encryption, where removing the data descriptor breaks password validation */
		de->bitflags &= (zip_uint16_t)~ZIP_GPBF_DATA_DESCRIPTOR;
	    }
	    if (_zip_dirent_write(za, de, ZIP_FL_LOCAL) < 0) {
		error = 1;
		break;
	    }
	    if ((offset = _zip_file_get_offset(za, i, &za->error)) == 0) {
		error = 1;
		break;
	    }
	    if (zip_source_seek(za->src, (zip_int64_t)offset, SEEK_SET) < 0) {
		_zip_error_set_from_source(&za->error, za->src);
                error = 1;
		break;
	    }
	    if (copy_data(za, de->comp_size) < 0) {
 		error = 1;
		break;
	    }

	    if (de->bitflags & ZIP_GPBF_DATA_DESCRIPTOR) {
		if (write_data_descriptor(za, de, _zip_dirent_needs_zip64(de, 0)) < 0) {
		    error = 1;
		    break;
		}
	    }
	}
    }

    if (!error) {
	if (write_cdir(za, filelist, survivors) < 0)
	    error = 1;
    }

    free(filelist);

    if (!error) {
	if (zip_source_commit_write(za->src) != 0) {
	    _zip_error_set_from_source(&za->error, za->src);
	    error = 1;
	}
	_zip_progress_end(za->progress);
    }

    if (error) {
	zip_source_rollback_write(za->src);
	return -1;
    }

    zip_discard(za);

    return 0;
}


static int
add_data(zip_t *za, zip_source_t *src, zip_dirent_t *de, zip_uint32_t changed) {
    zip_int64_t offstart, offdata, offend, data_length;
    zip_stat_t st;
    zip_file_attributes_t attributes;
    zip_source_t *src_final, *src_tmp;
    int ret;
    int is_zip64;
    zip_flags_t flags;
    bool needs_recompress, needs_decompress, needs_crc, needs_compress, needs_reencrypt, needs_decrypt, needs_encrypt;

    if (zip_source_stat(src, &st) < 0) {
	_zip_error_set_from_source(&za->error, src);
	return -1;
    }

    if ((st.valid & ZIP_STAT_COMP_METHOD) == 0) {
	st.valid |= ZIP_STAT_COMP_METHOD;
	st.comp_method = ZIP_CM_STORE;
    }

    if (ZIP_CM_IS_DEFAULT(de->comp_method) && st.comp_method != ZIP_CM_STORE)
	de->comp_method = st.comp_method;
    else if (de->comp_method == ZIP_CM_STORE && (st.valid & ZIP_STAT_SIZE)) {
	st.valid |= ZIP_STAT_COMP_SIZE;
	st.comp_size = st.size;
    }
    else {
	/* we'll recompress */
	st.valid &= ~ZIP_STAT_COMP_SIZE;
    }

    if ((st.valid & ZIP_STAT_ENCRYPTION_METHOD) == 0) {
	st.valid |= ZIP_STAT_ENCRYPTION_METHOD;
	st.encryption_method = ZIP_EM_NONE;
    }

    flags = ZIP_EF_LOCAL;

    if ((st.valid & ZIP_STAT_SIZE) == 0) {
	flags |= ZIP_FL_FORCE_ZIP64;
	data_length = -1;
    }
    else {
	de->uncomp_size = st.size;
	/* this is technically incorrect (copy_source counts compressed data), but it's the best we have */
	data_length = (zip_int64_t)st.size;

	if ((st.valid & ZIP_STAT_COMP_SIZE) == 0) {
	    zip_uint64_t max_size;

	    switch (ZIP_CM_ACTUAL(de->comp_method)) {
	    case ZIP_CM_BZIP2:
		/* computed by looking at increase of 10 random files of size 1MB when
		 * compressed with bzip2, rounded up: 1.006 */
		max_size = 4269351188u;
		break;

	    case ZIP_CM_DEFLATE:
		/* max deflate size increase: size + ceil(size/16k)*5+6 */
		max_size = 4293656963u;
		break;

	    case ZIP_CM_STORE:
		max_size = 0xffffffffu;
		break;

	    default:
		max_size = 0;
	    }

	    if (st.size > max_size) {
		flags |= ZIP_FL_FORCE_ZIP64;
	    }
	}
	else
	    de->comp_size = st.comp_size;
    }

    if ((offstart = zip_source_tell_write(za->src)) < 0) {
	_zip_error_set_from_source(&za->error, za->src);
	return -1;
    }

    /* as long as we don't support non-seekable output, clear data descriptor bit */
    de->bitflags &= (zip_uint16_t)~ZIP_GPBF_DATA_DESCRIPTOR;
    if ((is_zip64 = _zip_dirent_write(za, de, flags)) < 0) {
	return -1;
    }

    needs_recompress = st.comp_method != ZIP_CM_ACTUAL(de->comp_method);
    needs_decompress = needs_recompress && (st.comp_method != ZIP_CM_STORE);
    needs_crc = (st.comp_method == ZIP_CM_STORE) || needs_decompress;
    needs_compress = needs_recompress && (de->comp_method != ZIP_CM_STORE);

    needs_reencrypt = needs_recompress || (de->changed & ZIP_DIRENT_PASSWORD) || (de->encryption_method != st.encryption_method);
    needs_decrypt = needs_reencrypt && (st.encryption_method != ZIP_EM_NONE);
    needs_encrypt = needs_reencrypt && (de->encryption_method != ZIP_EM_NONE);

    src_final = src;
    zip_source_keep(src_final);

    if (needs_decrypt) {
	zip_encryption_implementation impl;

	if ((impl = _zip_get_encryption_implementation(st.encryption_method, ZIP_CODEC_DECODE)) == NULL) {
	    zip_error_set(&za->error, ZIP_ER_ENCRNOTSUPP, 0);
	    zip_source_free(src_final);
	    return -1;
	}
	if ((src_tmp = impl(za, src_final, st.encryption_method, ZIP_CODEC_DECODE, za->default_password)) == NULL) {
	    /* error set by impl */
	    zip_source_free(src_final);
	    return -1;
	}

	zip_source_free(src_final);
	src_final = src_tmp;
    }

    if (needs_decompress) {
	if ((src_tmp = zip_source_decompress(za, src_final, st.comp_method)) == NULL) {
	    zip_source_free(src_final);
	    return -1;
	}

	zip_source_free(src_final);
	src_final = src_tmp;
    }

    if (needs_crc) {
	if ((src_tmp = zip_source_crc(za, src_final, 0)) == NULL) {
	    zip_source_free(src_final);
	    return -1;
	}

	zip_source_free(src_final);
	src_final = src_tmp;
    }

    if (needs_compress) {
	if ((src_tmp = zip_source_compress(za, src_final, de->comp_method, de->compression_level)) == NULL) {
	    zip_source_free(src_final);
	    return -1;
	}

	zip_source_free(src_final);
	src_final = src_tmp;
    }


    if (needs_encrypt) {
	zip_encryption_implementation impl;
	const char *password = NULL;

	if (de->password) {
	    password = de->password;
	}
	else if (za->default_password) {
	    password = za->default_password;
	}

	if ((impl = _zip_get_encryption_implementation(de->encryption_method, ZIP_CODEC_ENCODE)) == NULL) {
	    zip_error_set(&za->error, ZIP_ER_ENCRNOTSUPP, 0);
	    zip_source_free(src_final);
	    return -1;
	}
	if ((src_tmp = impl(za, src_final, de->encryption_method, ZIP_CODEC_ENCODE, password)) == NULL) {
	    /* error set by impl */
	    zip_source_free(src_final);
	    return -1;
	}
	if (de->encryption_method == ZIP_EM_TRAD_PKWARE) {
	    de->bitflags |= ZIP_GPBF_DATA_DESCRIPTOR;
	}

	zip_source_free(src_final);
	src_final = src_tmp;
    }


    if ((offdata = zip_source_tell_write(za->src)) < 0) {
	_zip_error_set_from_source(&za->error, za->src);
	return -1;
    }

    ret = copy_source(za, src_final, data_length);

    if (zip_source_stat(src_final, &st) < 0) {
	_zip_error_set_from_source(&za->error, src_final);
	ret = -1;
    }

    if (zip_source_get_file_attributes(src_final, &attributes) != 0) {
	_zip_error_set_from_source(&za->error, src_final);
	ret = -1;
    }

    zip_source_free(src_final);

    if (ret < 0) {
	return -1;
    }

    if ((offend = zip_source_tell_write(za->src)) < 0) {
	_zip_error_set_from_source(&za->error, za->src);
	return -1;
    }

    if (zip_source_seek_write(za->src, offstart, SEEK_SET) < 0) {
	_zip_error_set_from_source(&za->error, za->src);
	return -1;
    }

    if ((st.valid & (ZIP_STAT_COMP_METHOD | ZIP_STAT_CRC | ZIP_STAT_SIZE)) != (ZIP_STAT_COMP_METHOD | ZIP_STAT_CRC | ZIP_STAT_SIZE)) {
	zip_error_set(&za->error, ZIP_ER_INTERNAL, 0);
	return -1;
    }

    if ((de->changed & ZIP_DIRENT_LAST_MOD) == 0) {
	if (st.valid & ZIP_STAT_MTIME)
	    de->last_mod = st.mtime;
	else
	    time(&de->last_mod);
    }
    de->comp_method = st.comp_method;
    de->crc = st.crc;
    de->uncomp_size = st.size;
    de->comp_size = (zip_uint64_t)(offend - offdata);
    _zip_dirent_apply_attributes(de, &attributes, (flags & ZIP_FL_FORCE_ZIP64) != 0, changed);

    if ((ret = _zip_dirent_write(za, de, flags)) < 0)
	return -1;

    if (is_zip64 != ret) {
	/* Zip64 mismatch between preliminary file header written before data and final file header written afterwards */
	zip_error_set(&za->error, ZIP_ER_INTERNAL, 0);
	return -1;
    }

    if (zip_source_seek_write(za->src, offend, SEEK_SET) < 0) {
	_zip_error_set_from_source(&za->error, za->src);
	return -1;
    }

    if (de->bitflags & ZIP_GPBF_DATA_DESCRIPTOR) {
	if (write_data_descriptor(za, de, is_zip64) < 0) {
	    return -1;
	}
    }

    return 0;
}


static int
copy_data(zip_t *za, zip_uint64_t len) {
    DEFINE_BYTE_ARRAY(buf, BUFSIZE);
    size_t n;
    double total = (double)len;

    if (!byte_array_init(buf, BUFSIZE)) {
	zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
	return -1;
    }

    while (len > 0) {
	n = len > BUFSIZE ? BUFSIZE : len;
	if (_zip_read(za->src, buf, n, &za->error) < 0) {
	    byte_array_fini(buf);
	    return -1;
	}

	if (_zip_write(za, buf, n) < 0) {
	    byte_array_fini(buf);
	    return -1;
	}

	len -= n;

	if (_zip_progress_update(za->progress, (total - (double)len) / total) != 0) {
	    zip_error_set(&za->error, ZIP_ER_CANCELLED, 0);
	    return -1;
	}
    }

    byte_array_fini(buf);
    return 0;
}


static int
copy_source(zip_t *za, zip_source_t *src, zip_int64_t data_length) {
    DEFINE_BYTE_ARRAY(buf, BUFSIZE);
    zip_int64_t n, current;
    int ret;

    if (zip_source_open(src) < 0) {
	_zip_error_set_from_source(&za->error, src);
	return -1;
    }

    if (!byte_array_init(buf, BUFSIZE)) {
	zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
	return -1;
    }

    ret = 0;
    current = 0;
    while ((n = zip_source_read(src, buf, BUFSIZE)) > 0) {
	if (_zip_write(za, buf, (zip_uint64_t)n) < 0) {
	    ret = -1;
	    break;
	}
	if (n == BUFSIZE && za->progress && data_length > 0) {
	    current += n;
	    if (_zip_progress_update(za->progress, (double)current / (double)data_length) != 0) {
		zip_error_set(&za->error, ZIP_ER_CANCELLED, 0);
		ret = -1;
		break;
	    }
	}
    }

    if (n < 0) {
	_zip_error_set_from_source(&za->error, src);
	ret = -1;
    }

    byte_array_fini(buf);

    zip_source_close(src);

    return ret;
}

static int
write_cdir(zip_t *za, const zip_filelist_t *filelist, zip_uint64_t survivors) {
    zip_int64_t cd_start, end, size;

    if ((cd_start = zip_source_tell_write(za->src)) < 0) {
	return -1;
    }

    if ((size = _zip_cdir_write(za, filelist, survivors)) < 0) {
	return -1;
    }

    if ((end = zip_source_tell_write(za->src)) < 0) {
	return -1;
    }

    return 0;
}


int
_zip_changed(const zip_t *za, zip_uint64_t *survivorsp) {
    int changed;
    zip_uint64_t i, survivors;

    changed = 0;
    survivors = 0;

    if (za->comment_changed || za->ch_flags != za->flags) {
	changed = 1;
    }

    for (i = 0; i < za->nentry; i++) {
	if (ZIP_ENTRY_HAS_CHANGES(&za->entry[i])) {
	    changed = 1;
	}
	if (!za->entry[i].deleted) {
	    survivors++;
	}
    }

    if (survivorsp) {
	*survivorsp = survivors;
    }

    return changed;
}

static int
write_data_descriptor(zip_t *za, const zip_dirent_t *de, int is_zip64) {
    zip_buffer_t *buffer = _zip_buffer_new(NULL, MAX_DATA_DESCRIPTOR_LENGTH);
    int ret = 0;

    if (buffer == NULL) {
	zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
	return -1;
    }

    _zip_buffer_put(buffer, DATADES_MAGIC, 4);
    _zip_buffer_put_32(buffer, de->crc);
    if (is_zip64) {
	_zip_buffer_put_64(buffer, de->comp_size);
	_zip_buffer_put_64(buffer, de->uncomp_size);
    }
    else {
	_zip_buffer_put_32(buffer, (zip_uint32_t)de->comp_size);
	_zip_buffer_put_32(buffer, (zip_uint32_t)de->uncomp_size);
    }

    if (!_zip_buffer_ok(buffer)) {
	zip_error_set(&za->error, ZIP_ER_INTERNAL, 0);
	ret = -1;
    }
    else {
	ret = _zip_write(za, _zip_buffer_data(buffer), _zip_buffer_offset(buffer));
    }

    _zip_buffer_free(buffer);

    return ret;
}