From 4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629 Mon Sep 17 00:00:00 2001
From: Mounir IDRASSI <mounir.idrassi@idrix.fr>
Date: Thu, 15 Sep 2016 10:04:05 +0200
Subject: Windows: Replace XZip/XUnzip library with zlib and libzip and include
 the sources of these library into VeraCrypt source tree.

---
 src/Common/libzip/zip_fdopen.c | 85 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 src/Common/libzip/zip_fdopen.c

(limited to 'src/Common/libzip/zip_fdopen.c')

diff --git a/src/Common/libzip/zip_fdopen.c b/src/Common/libzip/zip_fdopen.c
new file mode 100644
index 00000000..bbcdf4f6
--- /dev/null
+++ b/src/Common/libzip/zip_fdopen.c
@@ -0,0 +1,85 @@
+/*
+  zip_fdopen.c -- open read-only archive from file descriptor
+  Copyright (C) 2009-2014 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 "zipint.h"
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+
+ZIP_EXTERN zip_t *
+zip_fdopen(int fd_orig, int _flags, int *zep)
+{
+    int fd;
+    FILE *fp;
+    zip_t *za;
+    zip_source_t *src;
+    struct zip_error error;
+
+    if (_flags < 0 || (_flags & ZIP_TRUNCATE)) {
+	_zip_set_open_error(zep, NULL, ZIP_ER_INVAL);
+        return  NULL;
+    }
+        
+    /* We dup() here to avoid messing with the passed in fd.
+       We could not restore it to the original state in case of error. */
+
+    if ((fd=dup(fd_orig)) < 0) {
+	_zip_set_open_error(zep, NULL, ZIP_ER_OPEN);
+	return NULL;
+    }
+
+    if ((fp=fdopen(fd, "rb")) == NULL) {
+	close(fd);
+	_zip_set_open_error(zep, NULL, ZIP_ER_OPEN);
+	return NULL;
+    }
+
+    zip_error_init(&error);
+    if ((src = zip_source_filep_create(fp, 0, -1, &error)) == NULL) {
+	_zip_set_open_error(zep, &error, 0);
+	zip_error_fini(&error);
+	return NULL;
+    }
+
+    if ((za = zip_open_from_source(src, _flags, &error)) == NULL) {
+	_zip_set_open_error(zep, &error, 0);
+	zip_error_fini(&error);
+	return NULL;
+    }
+
+    zip_error_fini(&error);
+    close(fd_orig);
+    return za;
+}
-- 
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