1 files changed, 83 insertions, 0 deletions
diff --git a/src/cmd/venti/srv/fmtisect.c b/src/cmd/venti/srv/fmtisect.c
new file mode 100644
index 00000000..28b88de6
--- /dev/null
+++ b/src/cmd/venti/srv/fmtisect.c
@@ -0,0 +1,83 @@
+#include "stdinc.h"
+#include "dat.h"
+#include "fns.h"
+
+void
+usage(void)
+{
+	fprint(2, "usage: fmtisect [-Z] [-b blocksize] name file\n");
+	threadexitsall(0);
+}
+
+void
+threadmain(int argc, char *argv[])
+{
+	int vers;
+	ISect *is;
+	Part *part;
+	char *file, *name;
+	int blocksize, setsize, zero;
+
+	ventifmtinstall();
+	statsinit();
+
+	blocksize = 8 * 1024;
+	setsize = 512 * 1024;
+	zero = -1;
+	vers = ISectVersion2;
+	ARGBEGIN{
+	case 'b':
+		blocksize = unittoull(ARGF());
+		if(blocksize == ~0)
+			usage();
+		if(blocksize > MaxDiskBlock){
+			fprint(2, "block size too large, max %d\n", MaxDiskBlock);
+			threadexitsall("usage");
+		}
+		break;
+	case '1':
+		vers = ISectVersion1;
+		break;
+	case 'Z':
+		zero = 0;
+		break;
+	default:
+		usage();
+		break;
+	}ARGEND
+
+	if(zero == -1){
+		if(vers == ISectVersion1)
+			zero = 1;
+		else
+			zero = 0;
+	}
+
+	if(argc != 2)
+		usage();
+
+	name = argv[0];
+	file = argv[1];
+
+	if(nameok(name) < 0)
+		sysfatal("illegal name %s", name);
+
+	part = initpart(file, ORDWR|ODIRECT);
+	if(part == nil)
+		sysfatal("can't open partition %s: %r", file);
+
+	if(zero)
+		zeropart(part, blocksize);
+
+	is = newisect(part, vers, name, blocksize, setsize);
+	if(is == nil)
+		sysfatal("can't initialize new index: %r");
+
+	fprint(2, "fmtisect %s: %,d buckets of %,d entries, %,d bytes for index map\n",
+		file, is->blocks, is->buckmax, setsize);
+
+	if(wbisect(is) < 0)
+		fprint(2, "can't write back index section header for %s: %r\n", file);
+
+	threadexitsall(0);
+}