start thinking about vac -- doesn't build yet

1 files changed, 71 insertions, 0 deletions

diff --git a/src/cmd/vac/util.c b/src/cmd/vac/util.c
new file mode 100644
index 00000000..f52acf60
--- /dev/null
+++ b/src/cmd/vac/util.c
@@ -0,0 +1,71 @@
+#include "stdinc.h"
+#include "vac.h"
+#include "dat.h"
+#include "fns.h"
+
+int
+vtGetUint16(uchar *p)
+{
+	return (p[0]<<8)|p[1];
+}
+
+ulong
+vtGetUint32(uchar *p)
+{
+	return (p[0]<<24)|(p[1]<<16)|(p[2]<<8)|p[3];
+}
+
+uvlong
+vtGetUint48(uchar *p)
+{
+	return ((uvlong)p[0]<<40)|((uvlong)p[1]<<32)|
+		(p[2]<<24)|(p[3]<<16)|(p[4]<<8)|p[5];
+}
+
+uvlong
+vtGetUint64(uchar *p)
+{
+	return ((uvlong)p[0]<<56)|((uvlong)p[1]<<48)|((uvlong)p[2]<<40)|
+		((uvlong)p[3]<<32)|(p[4]<<24)|(p[5]<<16)|(p[6]<<8)|p[7];
+}
+
+
+void
+vtPutUint16(uchar *p, int x)
+{
+	p[0] = x>>8;
+	p[1] = x;
+}
+
+void
+vtPutUint32(uchar *p, ulong x)
+{
+	p[0] = x>>24;
+	p[1] = x>>16;
+	p[2] = x>>8;
+	p[3] = x;
+}
+
+void
+vtPutUint48(uchar *p, uvlong x)
+{
+	p[0] = x>>40;
+	p[1] = x>>32;
+	p[2] = x>>24;
+	p[3] = x>>16;
+	p[4] = x>>8;
+	p[5] = x;
+}
+
+void
+vtPutUint64(uchar *p, uvlong x)
+{
+	p[0] = x>>56;
+	p[1] = x>>48;
+	p[2] = x>>40;
+	p[3] = x>>32;
+	p[4] = x>>24;
+	p[5] = x>>16;
+	p[6] = x>>8;
+	p[7] = x;
+}