Windows: Replace XZip/XUnzip library with zlib and libzip and include the sources of these library into VeraCrypt source tree.

src/Common/libzip/zip_source_win32a.c

@@ -0,0 +1,124 @@
+/*
+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;
+}