From ce188d4d7f3b9ad04867c49b424e8497c2ade92b Mon Sep 17 00:00:00 2001
From: aliaspider
Date: Tue, 14 May 2019 08:58:52 +0100
Subject: add CHD support.

---
 deps/lzma-16.04/C/7zBuf2.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 deps/lzma-16.04/C/7zBuf2.c

(limited to 'deps/lzma-16.04/C/7zBuf2.c')

diff --git a/deps/lzma-16.04/C/7zBuf2.c b/deps/lzma-16.04/C/7zBuf2.c
new file mode 100644
index 0000000..8e3fe92
--- /dev/null
+++ b/deps/lzma-16.04/C/7zBuf2.c
@@ -0,0 +1,51 @@
+/* 7zBuf2.c -- Byte Buffer
+2014-08-22 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
+
+#include <string.h>
+
+#include "7zBuf.h"
+
+void DynBuf_Construct(CDynBuf *p)
+{
+  p->data = 0;
+  p->size = 0;
+  p->pos = 0;
+}
+
+void DynBuf_SeekToBeg(CDynBuf *p)
+{
+  p->pos = 0;
+}
+
+int DynBuf_Write(CDynBuf *p, const Byte *buf, size_t size, ISzAlloc *alloc)
+{
+  if (size > p->size - p->pos)
+  {
+    size_t newSize = p->pos + size;
+    Byte *data;
+    newSize += newSize / 4;
+    data = (Byte *)alloc->Alloc(alloc, newSize);
+    if (data == 0)
+      return 0;
+    p->size = newSize;
+    memcpy(data, p->data, p->pos);
+    alloc->Free(alloc, p->data);
+    p->data = data;
+  }
+  if (size != 0)
+  {
+    memcpy(p->data + p->pos, buf, size);
+    p->pos += size;
+  }
+  return 1;
+}
+
+void DynBuf_Free(CDynBuf *p, ISzAlloc *alloc)
+{
+  alloc->Free(alloc, p->data);
+  p->data = 0;
+  p->size = 0;
+  p->pos = 0;
+}
-- 
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