1 #include "stdinc.h"
2 #include "dat.h"
3 #include "fns.h"
4 
5 void
6 usage(void)
7 {
8 	fprint(2, "usage: fmtisect [-Z] [-b blocksize] name file\n");
9 	threadexitsall(0);
10 }
11 
12 void
13 threadmain(int argc, char *argv[])
14 {
15 	ISect *is;
16 	Part *part;
17 	char *file, *name;
18 	int blocksize, setsize, zero;
19 
20 	fmtinstall('V', vtscorefmt);
21 	statsinit();
22 
23 	blocksize = 8 * 1024;
24 	setsize = 64 * 1024;
25 	zero = 1;
26 	ARGBEGIN{
27 	case 'b':
28 		blocksize = unittoull(ARGF());
29 		if(blocksize == ~0)
30 			usage();
31 		if(blocksize > MaxDiskBlock){
32 			fprint(2, "block size too large, max %d\n", MaxDiskBlock);
33 			threadexitsall("usage");
34 		}
35 		break;
36 	case 'Z':
37 		zero = 0;
38 		break;
39 	default:
40 		usage();
41 		break;
42 	}ARGEND
43 
44 	if(argc != 2)
45 		usage();
46 
47 	name = argv[0];
48 	file = argv[1];
49 
50 	if(nameok(name) < 0)
51 		sysfatal("illegal name %s", name);
52 
53 	part = initpart(file, 0);
54 	if(part == nil)
55 		sysfatal("can't open partition %s: %r", file);
56 
57 	if(zero)
58 		zeropart(part, blocksize);
59 
60 	fprint(2, "configuring index section %s with space for index config bytes=%d\n", name, setsize);
61 	is = newisect(part, name, blocksize, setsize);
62 	if(is == nil)
63 		sysfatal("can't initialize new index: %r");
64 
65 	if(wbisect(is) < 0)
66 		fprint(2, "can't write back index section header for %s: %r\n", file);
67 
68 	threadexitsall(0);
69 }