Win32 zip_source implementation using function pointers instead of #include to
abstract character types
diff --git a/lib/zip_source_win32w.c b/lib/zip_source_win32w.c
new file mode 100644
index 0000000..e35f293
--- /dev/null
+++ b/lib/zip_source_win32w.c
@@ -0,0 +1,141 @@
+/*
+zip_source_win32w.c -- create data source from Windows file (Unicode)
+Copyright (C) 1999-2014 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 <errno.h>
+#include <stdio.h>
+#include <windows.h>
+
+#include "zipint.h"
+
+static void *_win32_strdup_w(const void *str);
+static HANDLE _win32_open_w(_zip_source_win32_read_file_t *ctx);
+static HANDLE _win32_create_temp_w(_zip_source_win32_read_file_t *ctx, void **temp, zip_uint32_t value);
+static int _win32_rename_temp_w(_zip_source_win32_read_file_t *ctx);
+static int _win32_discard_source_w(_zip_source_win32_read_file_t *ctx);
+static int _win32_discard_temp_w(_zip_source_win32_read_file_t *ctx);
+static HANDLE _win32_create_temp_file_w(const wchar_t *fname, wchar_t *temp, int len);
+
+static _zip_source_win32_file_ops_t win32_ops_w = {
+ .op_strdup = _win32_strdup_w,
+ .op_open = _win32_open_w,
+ .op_create_temp = _win32_create_temp_w,
+ .op_rename_temp = _win32_rename_temp_w,
+ .op_discard_source = _win32_discard_source_w,
+ .op_discard_temp = _win32_discard_temp_w
+};
+
+ZIP_EXTERN zip_source_t *
+zip_source_win32w(zip_t *za, const wchar_t *fname, zip_uint64_t start, zip_int64_t len)
+{
+ if (za == NULL)
+ return NULL;
+
+ return zip_source_win32w_create(fname, start, len, &za->error);
+}
+
+
+ZIP_EXTERN zip_source_t *
+zip_source_win32w_create(const wchar_t *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_w, error);
+}
+
+
+void *
+_win32_strdup_w(const void *str)
+{
+ return _wcsdup((const wchar_t *)str);
+}
+
+
+HANDLE
+_win32_open_w(_zip_source_win32_read_file_t *ctx)
+{
+ return CreateFileW(ctx->fname, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+}
+
+
+HANDLE
+_win32_create_temp_w(_zip_source_win32_read_file_t *ctx, void **temp, zip_uint32_t value)
+{
+ int len;
+
+ len = wcslen((const wchar_t *)ctx->fname) + 10;
+ if (*temp == NULL) {
+ if ((*temp = (char *)malloc(sizeof(char) * len)) == NULL) {
+ zip_error_set(&ctx->error, ZIP_ER_MEMORY, 0);
+ return INVALID_HANDLE_VALUE;
+ }
+ }
+ if (swprintf((wchar_t *)*temp, len, L"%s.%08x", (const wchar_t *)ctx->fname, value) != len - 1) {
+ return INVALID_HANDLE_VALUE;
+ }
+
+ return CreateFileW((const wchar_t *)*temp, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL | FILE_ATTRIBUTE_TEMPORARY, NULL);
+}
+
+
+int
+_win32_rename_temp_w(_zip_source_win32_read_file_t *ctx)
+{
+ if (!MoveFileExW(ctx->tmpname, ctx->fname, MOVEFILE_REPLACE_EXISTING)) {
+ zip_error_set(&ctx->error, ZIP_ER_RENAME, _zip_set_win32_error(GetLastError(), &ctx->win32err));
+ return -1;
+ }
+ return 0;
+}
+
+
+int
+_win32_discard_source_w(_zip_source_win32_read_file_t *ctx)
+{
+ if (!DeleteFileW(ctx->fname)) {
+ zip_error_set(&ctx->error, ZIP_ER_REMOVE, _zip_set_win32_error(GetLastError(), &ctx->win32err));
+ return -1;
+ }
+ return 0;
+}
+
+
+int
+_win32_discard_temp_w(_zip_source_win32_read_file_t *ctx)
+{
+ DeleteFileW(ctx->tmpname);
+ return 0;
+}
