+/*

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

+Copyright (C) 1999-2016 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 "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);

+

+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

+};

+

+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)

+{

+ int 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)

+{

+ 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;

+}