1 a0d146ed 2005-07-12 devnull #include "stdinc.h"
  2 a0d146ed 2005-07-12 devnull #include "dat.h"
  3 a0d146ed 2005-07-12 devnull #include "fns.h"
  4 a0d146ed 2005-07-12 devnull 
  5 a0d146ed 2005-07-12 devnull void
  6 a0d146ed 2005-07-12 devnull usage(void)
  7 a0d146ed 2005-07-12 devnull {
  8 185fd7db 2020-01-13 crossd 	fprint(2, "usage: printarena [-o aoffset] arenafile [offset]\n");
  9 a0d146ed 2005-07-12 devnull 	threadexitsall("usage");
 10 a0d146ed 2005-07-12 devnull }
 11 a0d146ed 2005-07-12 devnull 
 12 a0d146ed 2005-07-12 devnull static void
 13 a0d146ed 2005-07-12 devnull rdarena(Arena *arena, u64int offset)
 14 a0d146ed 2005-07-12 devnull {
 15 a0d146ed 2005-07-12 devnull 	u64int a, aa, e;
 16 a0d146ed 2005-07-12 devnull 	u32int magic;
 17 a0d146ed 2005-07-12 devnull 	Clump cl;
 18 a0d146ed 2005-07-12 devnull 	uchar score[VtScoreSize];
 19 a0d146ed 2005-07-12 devnull 	ZBlock *lump;
 20 a0d146ed 2005-07-12 devnull 
 21 a0d146ed 2005-07-12 devnull 	printarena(2, arena);
 22 a0d146ed 2005-07-12 devnull 
 23 a0d146ed 2005-07-12 devnull 	a = arena->base;
 24 a0d146ed 2005-07-12 devnull 	e = arena->base + arena->size;
 25 a0d146ed 2005-07-12 devnull 	if(offset != ~(u64int)0) {
 26 a0d146ed 2005-07-12 devnull 		if(offset >= e-a)
 27 f5a8ea6f 2011-06-02 rsc 			sysfatal("bad offset %llud >= %llud",
 28 a0d146ed 2005-07-12 devnull 				offset, e-a);
 29 a0d146ed 2005-07-12 devnull 		aa = offset;
 30 a0d146ed 2005-07-12 devnull 	} else
 31 a0d146ed 2005-07-12 devnull 		aa = 0;
 32 a0d146ed 2005-07-12 devnull 
 33 a0d146ed 2005-07-12 devnull 	for(; aa < e; aa += ClumpSize+cl.info.size) {
 34 a0d146ed 2005-07-12 devnull 		magic = clumpmagic(arena, aa);
 35 a0d146ed 2005-07-12 devnull 		if(magic == ClumpFreeMagic)
 36 a0d146ed 2005-07-12 devnull 			break;
 37 a0d146ed 2005-07-12 devnull 		if(magic != arena->clumpmagic) {
 38 a0d146ed 2005-07-12 devnull 			fprint(2, "illegal clump magic number %#8.8ux offset %llud\n",
 39 a0d146ed 2005-07-12 devnull 				magic, aa);
 40 a0d146ed 2005-07-12 devnull 			break;
 41 a0d146ed 2005-07-12 devnull 		}
 42 a0d146ed 2005-07-12 devnull 		lump = loadclump(arena, aa, 0, &cl, score, 0);
 43 a0d146ed 2005-07-12 devnull 		if(lump == nil) {
 44 a0d146ed 2005-07-12 devnull 			fprint(2, "clump %llud failed to read: %r\n", aa);
 45 a0d146ed 2005-07-12 devnull 			break;
 46 a0d146ed 2005-07-12 devnull 		}
 47 a0d146ed 2005-07-12 devnull 		if(cl.info.type != VtCorruptType) {
 48 a0d146ed 2005-07-12 devnull 			scoremem(score, lump->data, cl.info.uncsize);
 49 a0d146ed 2005-07-12 devnull 			if(scorecmp(cl.info.score, score) != 0) {
 50 a0d146ed 2005-07-12 devnull 				fprint(2, "clump %llud has mismatched score\n", aa);
 51 a0d146ed 2005-07-12 devnull 				break;
 52 a0d146ed 2005-07-12 devnull 			}
 53 a0d146ed 2005-07-12 devnull 			if(vttypevalid(cl.info.type) < 0) {
 54 a0d146ed 2005-07-12 devnull 				fprint(2, "clump %llud has bad type %d\n", aa, cl.info.type);
 55 a0d146ed 2005-07-12 devnull 				break;
 56 a0d146ed 2005-07-12 devnull 			}
 57 a0d146ed 2005-07-12 devnull 		}
 58 a0d146ed 2005-07-12 devnull 		print("%22llud %V %3d %5d\n", aa, score, cl.info.type, cl.info.uncsize);
 59 a0d146ed 2005-07-12 devnull 		freezblock(lump);
 60 a0d146ed 2005-07-12 devnull 	}
 61 a0d146ed 2005-07-12 devnull 	print("end offset %llud\n", aa);
 62 a0d146ed 2005-07-12 devnull }
 63 a0d146ed 2005-07-12 devnull 
 64 a0d146ed 2005-07-12 devnull void
 65 a0d146ed 2005-07-12 devnull threadmain(int argc, char *argv[])
 66 a0d146ed 2005-07-12 devnull {
 67 a0d146ed 2005-07-12 devnull 	char *file;
 68 a0d146ed 2005-07-12 devnull 	Arena *arena;
 69 a0d146ed 2005-07-12 devnull 	u64int offset, aoffset;
 70 a0d146ed 2005-07-12 devnull 	Part *part;
 71 27d28098 2007-04-21 devnull 	static uchar buf[8192];
 72 a0d146ed 2005-07-12 devnull 	ArenaHead head;
 73 a0d146ed 2005-07-12 devnull 
 74 a0d146ed 2005-07-12 devnull 	readonly = 1;	/* for part.c */
 75 a0d146ed 2005-07-12 devnull 	aoffset = 0;
 76 a0d146ed 2005-07-12 devnull 	ARGBEGIN{
 77 a0d146ed 2005-07-12 devnull 	case 'o':
 78 a0d146ed 2005-07-12 devnull 		aoffset = strtoull(EARGF(usage()), 0, 0);
 79 a0d146ed 2005-07-12 devnull 		break;
 80 a0d146ed 2005-07-12 devnull 	default:
 81 a0d146ed 2005-07-12 devnull 		usage();
 82 a0d146ed 2005-07-12 devnull 		break;
 83 a0d146ed 2005-07-12 devnull 	}ARGEND
 84 a0d146ed 2005-07-12 devnull 
 85 a0d146ed 2005-07-12 devnull 	offset = ~(u64int)0;
 86 a0d146ed 2005-07-12 devnull 	switch(argc) {
 87 a0d146ed 2005-07-12 devnull 	default:
 88 a0d146ed 2005-07-12 devnull 		usage();
 89 a0d146ed 2005-07-12 devnull 	case 2:
 90 a0d146ed 2005-07-12 devnull 		offset = strtoull(argv[1], 0, 0);
 91 a0d146ed 2005-07-12 devnull 		/* fall through */
 92 a0d146ed 2005-07-12 devnull 	case 1:
 93 a0d146ed 2005-07-12 devnull 		file = argv[0];
 94 a0d146ed 2005-07-12 devnull 	}
 95 a0d146ed 2005-07-12 devnull 
 96 a0d146ed 2005-07-12 devnull 
 97 a0d146ed 2005-07-12 devnull 	ventifmtinstall();
 98 a0d146ed 2005-07-12 devnull 	statsinit();
 99 a0d146ed 2005-07-12 devnull 
100 a0d146ed 2005-07-12 devnull 	part = initpart(file, OREAD|ODIRECT);
101 a0d146ed 2005-07-12 devnull 	if(part == nil)
102 a0d146ed 2005-07-12 devnull 		sysfatal("can't open file %s: %r", file);
103 a0d146ed 2005-07-12 devnull 	if(readpart(part, aoffset, buf, sizeof buf) < 0)
104 a0d146ed 2005-07-12 devnull 		sysfatal("can't read file %s: %r", file);
105 a0d146ed 2005-07-12 devnull 
106 a0d146ed 2005-07-12 devnull 	if(unpackarenahead(&head, buf) < 0)
107 a0d146ed 2005-07-12 devnull 		sysfatal("corrupted arena header: %r");
108 a0d146ed 2005-07-12 devnull 
109 a0d146ed 2005-07-12 devnull 	print("# arena head version=%d name=%.*s blocksize=%d size=%lld clumpmagic=0x%.8ux\n",
110 a0d146ed 2005-07-12 devnull 		head.version, ANameSize, head.name, head.blocksize,
111 a0d146ed 2005-07-12 devnull 		head.size, head.clumpmagic);
112 a0d146ed 2005-07-12 devnull 
113 1726f602 2005-10-29 devnull 	if(aoffset+head.size > part->size)
114 f5a8ea6f 2011-06-02 rsc 		sysfatal("arena is truncated: want %llud bytes have %llud",
115 1726f602 2005-10-29 devnull 			head.size, part->size);
116 a0d146ed 2005-07-12 devnull 
117 a0d146ed 2005-07-12 devnull 	partblocksize(part, head.blocksize);
118 a0d146ed 2005-07-12 devnull 	initdcache(8 * MaxDiskBlock);
119 a0d146ed 2005-07-12 devnull 
120 a0d146ed 2005-07-12 devnull 	arena = initarena(part, aoffset, head.size, head.blocksize);
121 a0d146ed 2005-07-12 devnull 	if(arena == nil)
122 a0d146ed 2005-07-12 devnull 		sysfatal("initarena: %r");
123 a0d146ed 2005-07-12 devnull 
124 a0d146ed 2005-07-12 devnull 	rdarena(arena, offset);
125 a0d146ed 2005-07-12 devnull 	threadexitsall(0);
126 a0d146ed 2005-07-12 devnull }