mirror of
https://github.com/9fans/plan9port.git
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70 lines
1.2 KiB
C
70 lines
1.2 KiB
C
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#include "stdinc.h"
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#include "dat.h"
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#include "fns.h"
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void
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usage(void)
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{
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fprint(2, "usage: fmtisect [-Z] [-b blocksize] name file\n");
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threadexitsall(0);
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}
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void
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threadmain(int argc, char *argv[])
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{
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ISect *is;
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Part *part;
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char *file, *name;
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int blocksize, setsize, zero;
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fmtinstall('V', vtscorefmt);
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statsinit();
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blocksize = 8 * 1024;
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setsize = 64 * 1024;
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zero = 1;
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ARGBEGIN{
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case 'b':
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blocksize = unittoull(ARGF());
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if(blocksize == ~0)
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usage();
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if(blocksize > MaxDiskBlock){
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fprint(2, "block size too large, max %d\n", MaxDiskBlock);
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threadexitsall("usage");
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}
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break;
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case 'Z':
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zero = 0;
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break;
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default:
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usage();
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break;
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}ARGEND
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if(argc != 2)
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usage();
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name = argv[0];
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file = argv[1];
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if(nameok(name) < 0)
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sysfatal("illegal name %s", name);
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part = initpart(file, 0);
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if(part == nil)
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sysfatal("can't open partition %s: %r", file);
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if(zero)
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zeropart(part, blocksize);
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fprint(2, "configuring index section %s with space for index config bytes=%d\n", name, setsize);
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is = newisect(part, name, blocksize, setsize);
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if(is == nil)
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sysfatal("can't initialize new index: %r");
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if(wbisect(is) < 0)
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fprint(2, "can't write back index section header for %s: %r\n", file);
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threadexitsall(0);
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}
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