-/*

- zip_source_win32a.c -- create data source from Windows file (ANSI)

- 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.

-*/

-

-/* 0x0501 => Windows XP; needs to be at least this value because of GetFileSizeEx */

-#if !defined(MS_UWP) && !defined(_WIN32_WINNT)

-#define _WIN32_WINNT 0x0501

-#endif

-#include <windows.h>

-

-#include <stdio.h>

-#include <stdlib.h>

-

-#include "zipint.h"

-#include "zipwin32.h"

-

-static void *_win32_strdup_a(const void *str);

-static HANDLE _win32_open_a(_zip_source_win32_read_file_t *ctx);

-static HANDLE _win32_create_temp_a(_zip_source_win32_read_file_t *ctx, void **temp, zip_uint32_t value, PSECURITY_ATTRIBUTES sa);

-static int _win32_rename_temp_a(_zip_source_win32_read_file_t *ctx);

-static int _win32_remove_a(const void *fname);

-

-// clang-format off

-static _zip_source_win32_file_ops_t win32_ops_a = {

- _win32_strdup_a,

- _win32_open_a,

- _win32_create_temp_a,

- _win32_rename_temp_a,

- _win32_remove_a

-};

-// clang-format on

-

-ZIP_EXTERN zip_source_t *

-zip_source_win32a(zip_t *za, const char *fname, zip_uint64_t start, zip_int64_t len) {

- if (za == NULL)

- return NULL;

-

- return zip_source_win32a_create(fname, start, len, &za->error);

-}

-

-

-ZIP_EXTERN zip_source_t *

-zip_source_win32a_create(const char *fname, zip_uint64_t start, zip_int64_t length, zip_error_t *error) {

- if (fname == NULL || length < -1) {

- zip_error_set(error, ZIP_ER_INVAL, 0);

- return NULL;

- }

-

- return _zip_source_win32_handle_or_name(fname, INVALID_HANDLE_VALUE, start, length, 1, NULL, &win32_ops_a, error);

-}

-

-

-static void *

-_win32_strdup_a(const void *str) {

- return strdup((const char *)str);

-}

-

-

-static HANDLE

-_win32_open_a(_zip_source_win32_read_file_t *ctx) {

- return CreateFileA(ctx->fname, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

-}

-

-

-static HANDLE

-_win32_create_temp_a(_zip_source_win32_read_file_t *ctx, void **temp, zip_uint32_t value, PSECURITY_ATTRIBUTES sa) {

- size_t len;

-

- len = strlen((const char *)ctx->fname) + 10;

- if (*temp == NULL) {

- if ((*temp = malloc(sizeof(char) * len)) == NULL) {

- zip_error_set(&ctx->error, ZIP_ER_MEMORY, 0);

- return INVALID_HANDLE_VALUE;

- }

- }

- if (sprintf((char *)*temp, "%s.%08x", (const char *)ctx->fname, value) != len - 1) {

- return INVALID_HANDLE_VALUE;

- }

-

- return CreateFileA((const char *)*temp, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, sa, CREATE_NEW, FILE_ATTRIBUTE_NORMAL | FILE_ATTRIBUTE_TEMPORARY, NULL);

-}

-

-

-static int

-_win32_rename_temp_a(_zip_source_win32_read_file_t *ctx) {

- DWORD attributes = GetFileAttributesA(ctx->tmpname);

- if (INVALID_FILE_ATTRIBUTES == attributes)

- return -1;

-

- if (FILE_ATTRIBUTE_TEMPORARY & attributes) {

- if (!SetFileAttributesA(ctx->tmpname, attributes & ~FILE_ATTRIBUTE_TEMPORARY))

- return -1;

- }

-

- if (!MoveFileExA(ctx->tmpname, ctx->fname, MOVEFILE_REPLACE_EXISTING))

- return -1;

-

- return 0;

-}

-

-

-static int

-_win32_remove_a(const void *fname) {

- DeleteFileA((const char *)fname);

- return 0;

-}