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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2022-02-09 23:47:25 +0100
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2022-02-10 01:21:17 +0100
commit1ef05f24e28938c7a0608b4c6b369094d1dccaa6 (patch)
tree680a5b679c78cd999045abf207bfc7363aa1d9b9 /src/Common/lzma/LzmaLib.c
parent302dc37fb9baa45c5864af533664c4139e209590 (diff)
downloadVeraCrypt-1ef05f24e28938c7a0608b4c6b369094d1dccaa6.tar.gz
VeraCrypt-1ef05f24e28938c7a0608b4c6b369094d1dccaa6.zip
Windows: Reduce the size of installers by almost 50% by using LZMA compression instead of DEFLATE
Diffstat (limited to 'src/Common/lzma/LzmaLib.c')
-rw-r--r--src/Common/lzma/LzmaLib.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/src/Common/lzma/LzmaLib.c b/src/Common/lzma/LzmaLib.c
new file mode 100644
index 00000000..706e9e58
--- /dev/null
+++ b/src/Common/lzma/LzmaLib.c
@@ -0,0 +1,40 @@
+/* LzmaLib.c -- LZMA library wrapper
+2015-06-13 : Igor Pavlov : Public domain */
+
+#include "Alloc.h"
+#include "LzmaDec.h"
+#include "LzmaEnc.h"
+#include "LzmaLib.h"
+
+MY_STDAPI LzmaCompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t srcLen,
+ unsigned char *outProps, size_t *outPropsSize,
+ int level, /* 0 <= level <= 9, default = 5 */
+ unsigned dictSize, /* use (1 << N) or (3 << N). 4 KB < dictSize <= 128 MB */
+ int lc, /* 0 <= lc <= 8, default = 3 */
+ int lp, /* 0 <= lp <= 4, default = 0 */
+ int pb, /* 0 <= pb <= 4, default = 2 */
+ int fb, /* 5 <= fb <= 273, default = 32 */
+ int numThreads /* 1 or 2, default = 2 */
+)
+{
+ CLzmaEncProps props;
+ LzmaEncProps_Init(&props);
+ props.level = level;
+ props.dictSize = dictSize;
+ props.lc = lc;
+ props.lp = lp;
+ props.pb = pb;
+ props.fb = fb;
+ props.numThreads = numThreads;
+
+ return LzmaEncode(dest, destLen, src, srcLen, &props, outProps, outPropsSize, 0,
+ NULL, &g_Alloc, &g_Alloc);
+}
+
+
+MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t *srcLen,
+ const unsigned char *props, size_t propsSize)
+{
+ ELzmaStatus status;
+ return LzmaDecode(dest, destLen, src, srcLen, props, (unsigned)propsSize, LZMA_FINISH_ANY, &status, &g_Alloc);
+}