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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2016-09-15 08:04:05 (GMT)
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2016-10-17 16:40:06 (GMT)
commit4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629 (patch)
tree567350f56dd4ee4dd291d13199610d38dac51879 /src/Common/zlib/uncompr.c
parent66891638d51351fae5cd82a88c1a64661a025de0 (diff)
downloadVeraCrypt-4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629.zip
VeraCrypt-4dacedd9ccdbdc6a6e62d9fb86e9b2ea903a3629.tar.gz
Windows: Replace XZip/XUnzip library with zlib and libzip and include the sources of these library into VeraCrypt source tree.
Diffstat (limited to 'src/Common/zlib/uncompr.c')
-rw-r--r--src/Common/zlib/uncompr.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/Common/zlib/uncompr.c b/src/Common/zlib/uncompr.c
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+/* uncompr.c -- decompress a memory buffer
+ * Copyright (C) 1995-2003, 2010 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#define ZLIB_INTERNAL
+#include "zlib.h"
+
+/* ===========================================================================
+ Decompresses the source buffer into the destination buffer. sourceLen is
+ the byte length of the source buffer. Upon entry, destLen is the total
+ size of the destination buffer, which must be large enough to hold the
+ entire uncompressed data. (The size of the uncompressed data must have
+ been saved previously by the compressor and transmitted to the decompressor
+ by some mechanism outside the scope of this compression library.)
+ Upon exit, destLen is the actual size of the compressed buffer.
+
+ uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
+ enough memory, Z_BUF_ERROR if there was not enough room in the output
+ buffer, or Z_DATA_ERROR if the input data was corrupted.
+*/
+int ZEXPORT uncompress (dest, destLen, source, sourceLen)
+ Bytef *dest;
+ uLongf *destLen;
+ const Bytef *source;
+ uLong sourceLen;
+{
+ z_stream stream;
+ int err;
+
+ stream.next_in = (z_const Bytef *)source;
+ stream.avail_in = (uInt)sourceLen;
+ /* Check for source > 64K on 16-bit machine: */
+ if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
+
+ stream.next_out = dest;
+ stream.avail_out = (uInt)*destLen;
+ if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
+
+ stream.zalloc = (alloc_func)0;
+ stream.zfree = (free_func)0;
+
+ err = inflateInit(&stream);
+ if (err != Z_OK) return err;
+
+ err = inflate(&stream, Z_FINISH);
+ if (err != Z_STREAM_END) {
+ inflateEnd(&stream);
+ if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
+ return Z_DATA_ERROR;
+ return err;
+ }
+ *destLen = stream.total_out;
+
+ err = inflateEnd(&stream);
+ return err;
+}