1 7763a61a 2003-11-23 devnull #include "stdinc.h"
  2 7763a61a 2003-11-23 devnull #include <bio.h>
  3 7763a61a 2003-11-23 devnull 
  4 7763a61a 2003-11-23 devnull typedef struct Source Source;
  5 7763a61a 2003-11-23 devnull 
  6 7763a61a 2003-11-23 devnull struct Source
  7 7763a61a 2003-11-23 devnull {
  8 7763a61a 2003-11-23 devnull 	ulong gen;
  9 7763a61a 2003-11-23 devnull 	int psize;
 10 7763a61a 2003-11-23 devnull 	int dsize;
 11 7763a61a 2003-11-23 devnull 	int dir;
 12 7763a61a 2003-11-23 devnull 	int active;
 13 7763a61a 2003-11-23 devnull 	int depth;
 14 7763a61a 2003-11-23 devnull 	uvlong size;
 15 7763a61a 2003-11-23 devnull 	uchar score[VtScoreSize];
 16 7763a61a 2003-11-23 devnull 	int reserved;
 17 7763a61a 2003-11-23 devnull };
 18 7763a61a 2003-11-23 devnull 
 19 7763a61a 2003-11-23 devnull int bsize;
 20 7763a61a 2003-11-23 devnull Biobuf *bout;
 21 7763a61a 2003-11-23 devnull VtRoot root;
 22 7763a61a 2003-11-23 devnull int ver;
 23 7763a61a 2003-11-23 devnull int cmp;
 24 7763a61a 2003-11-23 devnull int all;
 25 7763a61a 2003-11-23 devnull int find;
 26 7763a61a 2003-11-23 devnull uchar fscore[VtScoreSize];
 27 3d77c87e 2004-03-15 devnull VtConn *z;
 28 7763a61a 2003-11-23 devnull 
 29 3d77c87e 2004-03-15 devnull int vtgetuint16(uchar *p);
 30 3d77c87e 2004-03-15 devnull ulong vtgetuint32(uchar *p);
 31 3d77c87e 2004-03-15 devnull uvlong vtgetuint48(uchar *p);
 32 7763a61a 2003-11-23 devnull void usage(void);
 33 3d77c87e 2004-03-15 devnull void readroot(VtRoot*, uchar *score, char *file);
 34 3d77c87e 2004-03-15 devnull int dumpdir(Source*, int indent);
 35 7763a61a 2003-11-23 devnull 
 36 7763a61a 2003-11-23 devnull void
 37 3d77c87e 2004-03-15 devnull threadmain(int argc, char *argv[])
 38 7763a61a 2003-11-23 devnull {
 39 3d77c87e 2004-03-15 devnull 	char *host = nil, *pref;
 40 7763a61a 2003-11-23 devnull 	uchar score[VtScoreSize];
 41 7763a61a 2003-11-23 devnull 	Source source;
 42 7763a61a 2003-11-23 devnull 	uchar buf[VtMaxLumpSize];
 43 7763a61a 2003-11-23 devnull 	char *p;
 44 7763a61a 2003-11-23 devnull 	int n;
 45 7763a61a 2003-11-23 devnull 
 46 7763a61a 2003-11-23 devnull 	ARGBEGIN{
 47 7763a61a 2003-11-23 devnull 	case 'h':
 48 7763a61a 2003-11-23 devnull 		host = ARGF();
 49 7763a61a 2003-11-23 devnull 		break;
 50 7763a61a 2003-11-23 devnull 	case 'c':
 51 7763a61a 2003-11-23 devnull 		cmp++;
 52 7763a61a 2003-11-23 devnull 		break;
 53 7763a61a 2003-11-23 devnull 	case 'f':
 54 7763a61a 2003-11-23 devnull 		find++;
 55 7763a61a 2003-11-23 devnull 		p = ARGF();
 56 3d77c87e 2004-03-15 devnull 		if(p == nil || vtparsescore(p, &pref, fscore) < 0 || !pref || strcmp(pref, "vac") != 0)
 57 7763a61a 2003-11-23 devnull 			usage();
 58 7763a61a 2003-11-23 devnull 		break;
 59 7763a61a 2003-11-23 devnull 	case 'a':
 60 7763a61a 2003-11-23 devnull 		all = 1;
 61 7763a61a 2003-11-23 devnull 		break;
 62 7763a61a 2003-11-23 devnull 	}ARGEND
 63 7763a61a 2003-11-23 devnull 
 64 3d77c87e 2004-03-15 devnull 	bout = vtmallocz(sizeof(Biobuf));
 65 7763a61a 2003-11-23 devnull 	Binit(bout, 1, OWRITE);
 66 7763a61a 2003-11-23 devnull 
 67 7763a61a 2003-11-23 devnull 	if(argc > 1)
 68 7763a61a 2003-11-23 devnull 		usage();
 69 7763a61a 2003-11-23 devnull 
 70 3d77c87e 2004-03-15 devnull 	fmtinstall('V', vtscorefmt);
 71 3d77c87e 2004-03-15 devnull 	fmtinstall('H', encodefmt);
 72 7763a61a 2003-11-23 devnull 
 73 3d77c87e 2004-03-15 devnull 	z = vtdial(host);
 74 7763a61a 2003-11-23 devnull 	if(z == nil)
 75 3d77c87e 2004-03-15 devnull 		sysfatal("could not connect to server: %r");
 76 7763a61a 2003-11-23 devnull 
 77 3d77c87e 2004-03-15 devnull 	if(vtconnect(z) < 0)
 78 3d77c87e 2004-03-15 devnull 		sysfatal("vtconnect: %r");
 79 7763a61a 2003-11-23 devnull 
 80 3d77c87e 2004-03-15 devnull 	readroot(&root, score, argv[0]);
 81 3d77c87e 2004-03-15 devnull 	bsize = root.blocksize;
 82 7763a61a 2003-11-23 devnull 	if(!find) {
 83 7763a61a 2003-11-23 devnull 		Bprint(bout, "score: %V\n", score);
 84 7763a61a 2003-11-23 devnull 		Bprint(bout, "name: %s\n", root.name);
 85 7763a61a 2003-11-23 devnull 		Bprint(bout, "type: %s\n", root.type);
 86 7763a61a 2003-11-23 devnull 		Bprint(bout, "bsize: %d\n", bsize);
 87 7763a61a 2003-11-23 devnull 		Bprint(bout, "prev: %V\n", root.prev);
 88 7763a61a 2003-11-23 devnull 	}
 89 7763a61a 2003-11-23 devnull 
 90 3d77c87e 2004-03-15 devnull 	n = vtread(z, root.score, VtDirType, buf, bsize);
 91 7763a61a 2003-11-23 devnull 	if(n < 0)
 92 7763a61a 2003-11-23 devnull 		sysfatal("could not read root dir");
 93 7763a61a 2003-11-23 devnull 
 94 7763a61a 2003-11-23 devnull 	/* fake up top level source */
 95 7763a61a 2003-11-23 devnull 	memset(&source, 0, sizeof(source));
 96 7763a61a 2003-11-23 devnull 	memmove(source.score, root.score, VtScoreSize);
 97 7763a61a 2003-11-23 devnull 	source.psize = bsize;
 98 7763a61a 2003-11-23 devnull 	source.dsize = bsize;
 99 7763a61a 2003-11-23 devnull 	source.dir = 1;
100 7763a61a 2003-11-23 devnull 	source.active = 1;
101 7763a61a 2003-11-23 devnull 	source.depth = 0;
102 7763a61a 2003-11-23 devnull 	source.size = n;
103 7763a61a 2003-11-23 devnull 
104 3d77c87e 2004-03-15 devnull 	dumpdir(&source, 0);
105 7763a61a 2003-11-23 devnull 
106 7763a61a 2003-11-23 devnull 	Bterm(bout);
107 7763a61a 2003-11-23 devnull 
108 3d77c87e 2004-03-15 devnull 	vthangup(z);
109 3d77c87e 2004-03-15 devnull 	threadexitsall(0);
110 7763a61a 2003-11-23 devnull }
111 7763a61a 2003-11-23 devnull 
112 7763a61a 2003-11-23 devnull void
113 3d77c87e 2004-03-15 devnull sourceprint(Source *s, int indent, int entry)
114 7763a61a 2003-11-23 devnull {
115 7763a61a 2003-11-23 devnull 	int i;
116 7763a61a 2003-11-23 devnull 	uvlong size;
117 7763a61a 2003-11-23 devnull 	int ne;
118 7763a61a 2003-11-23 devnull 
119 7763a61a 2003-11-23 devnull 	for(i=0; i<indent; i++)
120 7763a61a 2003-11-23 devnull 		Bprint(bout, " ");
121 7763a61a 2003-11-23 devnull 	Bprint(bout, "%4d", entry);
122 7763a61a 2003-11-23 devnull 	if(s->active) {
123 7763a61a 2003-11-23 devnull 		/* dir size in directory entries */
124 7763a61a 2003-11-23 devnull 		if(s->dir) {
125 7763a61a 2003-11-23 devnull 			ne = s->dsize/VtEntrySize;
126 7763a61a 2003-11-23 devnull 			size = ne*(s->size/s->dsize) + (s->size%s->dsize)/VtEntrySize;
127 7763a61a 2003-11-23 devnull 		} else 
128 7763a61a 2003-11-23 devnull 			size = s->size;
129 7763a61a 2003-11-23 devnull 		if(cmp) {
130 7763a61a 2003-11-23 devnull 			Bprint(bout, ": gen: %lud size: %llud",
131 7763a61a 2003-11-23 devnull 				s->gen, size);
132 7763a61a 2003-11-23 devnull 			if(!s->dir)
133 7763a61a 2003-11-23 devnull 				Bprint(bout, ": %V", s->score);
134 7763a61a 2003-11-23 devnull 		} else {
135 7763a61a 2003-11-23 devnull 			Bprint(bout, ": gen: %lud psize: %d dsize: %d",
136 7763a61a 2003-11-23 devnull 				s->gen, s->psize, s->dsize);
137 7763a61a 2003-11-23 devnull 			Bprint(bout, " depth: %d size: %llud: %V",
138 7763a61a 2003-11-23 devnull 				s->depth, size, s->score);
139 7763a61a 2003-11-23 devnull 		}
140 7763a61a 2003-11-23 devnull 		
141 7763a61a 2003-11-23 devnull 		if(s->reserved)
142 7763a61a 2003-11-23 devnull 			Bprint(bout, ": reserved not emtpy");
143 7763a61a 2003-11-23 devnull 	}
144 7763a61a 2003-11-23 devnull 	Bprint(bout, "\n");
145 7763a61a 2003-11-23 devnull }
146 7763a61a 2003-11-23 devnull 
147 7763a61a 2003-11-23 devnull int
148 7763a61a 2003-11-23 devnull parse(Source *s, uchar *p)
149 7763a61a 2003-11-23 devnull {
150 7763a61a 2003-11-23 devnull 	VtEntry dir;
151 7763a61a 2003-11-23 devnull 
152 7763a61a 2003-11-23 devnull 	memset(s, 0, sizeof(*s));
153 3d77c87e 2004-03-15 devnull 	if(vtentryunpack(&dir, p, 0) < 0)
154 3d77c87e 2004-03-15 devnull 		return -1;
155 7763a61a 2003-11-23 devnull 
156 7763a61a 2003-11-23 devnull 	if(!(dir.flags & VtEntryActive))
157 3d77c87e 2004-03-15 devnull 		return 0;
158 7763a61a 2003-11-23 devnull 
159 7763a61a 2003-11-23 devnull 	s->active = 1;
160 7763a61a 2003-11-23 devnull 	s->gen = dir.gen;
161 7763a61a 2003-11-23 devnull 	s->psize = dir.psize;
162 7763a61a 2003-11-23 devnull 	s->dsize = dir.size;
163 7763a61a 2003-11-23 devnull 	s->size = dir.size;
164 7763a61a 2003-11-23 devnull 	memmove(s->score, dir.score, VtScoreSize);
165 3d77c87e 2004-03-15 devnull 	if((dir.type&~VtTypeDepthMask) == VtDirType)
166 7763a61a 2003-11-23 devnull 		s->dir = 1;
167 3d77c87e 2004-03-15 devnull fprint(2, "sdir %d type %d %.*H\n", s->dir, dir.type, VtEntrySize, p);
168 3d77c87e 2004-03-15 devnull 	s->depth = dir.type&VtTypeDepthMask;
169 3d77c87e 2004-03-15 devnull 	return 0;
170 7763a61a 2003-11-23 devnull }
171 7763a61a 2003-11-23 devnull 
172 7763a61a 2003-11-23 devnull int
173 3d77c87e 2004-03-15 devnull sourceread(Source *s, ulong block, uchar *p, int n)
174 7763a61a 2003-11-23 devnull {
175 3d77c87e 2004-03-15 devnull 	uchar *buf;
176 7763a61a 2003-11-23 devnull 	uchar score[VtScoreSize];
177 7763a61a 2003-11-23 devnull 	int i, nn, np, type;
178 7763a61a 2003-11-23 devnull 	int elem[VtPointerDepth];
179 7763a61a 2003-11-23 devnull 
180 3d77c87e 2004-03-15 devnull 	buf = vtmalloc(VtMaxLumpSize);
181 3d77c87e 2004-03-15 devnull 
182 7763a61a 2003-11-23 devnull 	memmove(score, s->score, VtScoreSize);
183 7763a61a 2003-11-23 devnull 
184 7763a61a 2003-11-23 devnull 	np = s->psize/VtScoreSize;
185 7763a61a 2003-11-23 devnull 	for(i=0; i<s->depth; i++) {
186 7763a61a 2003-11-23 devnull 		elem[i] = block % np;
187 7763a61a 2003-11-23 devnull 		block /= np;
188 7763a61a 2003-11-23 devnull 	}
189 7763a61a 2003-11-23 devnull 	assert(block == 0);
190 7763a61a 2003-11-23 devnull 
191 7763a61a 2003-11-23 devnull 	for(i=s->depth-1; i>=0; i--) {
192 3d77c87e 2004-03-15 devnull 		nn = vtread(z, score, (s->dir ? VtDirType : VtDataType)+1+i, buf, s->psize);
193 3d77c87e 2004-03-15 devnull 		if(nn < 0){
194 3d77c87e 2004-03-15 devnull fprint(2, "vtread %V %d: %r\n", score, (s->dir ? VtDirType : VtDataType)+1+i);
195 3d77c87e 2004-03-15 devnull 			free(buf);
196 7763a61a 2003-11-23 devnull 			return -1;
197 7763a61a 2003-11-23 devnull 		}
198 7763a61a 2003-11-23 devnull 
199 3d77c87e 2004-03-15 devnull 		if((elem[i]+1)*VtScoreSize > nn){
200 3d77c87e 2004-03-15 devnull 			free(buf);
201 7763a61a 2003-11-23 devnull 			return 0;
202 3d77c87e 2004-03-15 devnull 		}
203 7763a61a 2003-11-23 devnull 		memmove(score, buf + elem[i]*VtScoreSize, VtScoreSize);
204 7763a61a 2003-11-23 devnull 	}
205 7763a61a 2003-11-23 devnull 
206 7763a61a 2003-11-23 devnull 	if(s->dir)
207 7763a61a 2003-11-23 devnull 		type = VtDirType;
208 7763a61a 2003-11-23 devnull 	else
209 7763a61a 2003-11-23 devnull 		type = VtDataType;
210 7763a61a 2003-11-23 devnull 
211 3d77c87e 2004-03-15 devnull 	nn = vtread(z, score, type, p, n);
212 3d77c87e 2004-03-15 devnull 	if(nn < 0){
213 3d77c87e 2004-03-15 devnull fprint(2, "vtread %V %d: %r\n", score, type);
214 3d77c87e 2004-03-15 devnull abort();
215 3d77c87e 2004-03-15 devnull 		free(buf);
216 7763a61a 2003-11-23 devnull 		return -1;
217 7763a61a 2003-11-23 devnull 	}
218 7763a61a 2003-11-23 devnull 	
219 3d77c87e 2004-03-15 devnull 	free(buf);
220 7763a61a 2003-11-23 devnull 	return nn;
221 7763a61a 2003-11-23 devnull }
222 7763a61a 2003-11-23 devnull 
223 7763a61a 2003-11-23 devnull void
224 3d77c87e 2004-03-15 devnull dumpfilecontents(Source *s)
225 7763a61a 2003-11-23 devnull {
226 7763a61a 2003-11-23 devnull 	int nb, lb, i, n;
227 7763a61a 2003-11-23 devnull 	uchar buf[VtMaxLumpSize];
228 7763a61a 2003-11-23 devnull 
229 7763a61a 2003-11-23 devnull 	nb = (s->size + s->dsize - 1)/s->dsize;
230 7763a61a 2003-11-23 devnull 	lb = s->size%s->dsize;
231 7763a61a 2003-11-23 devnull 	for(i=0; i<nb; i++) {
232 7763a61a 2003-11-23 devnull 		memset(buf, 0, s->dsize);
233 3d77c87e 2004-03-15 devnull 		n = sourceread(s, i, buf, s->dsize);
234 7763a61a 2003-11-23 devnull 		if(n < 0) {	
235 3d77c87e 2004-03-15 devnull 			fprint(2, "could not read block: %d: %r\n", i);
236 7763a61a 2003-11-23 devnull 			continue;
237 7763a61a 2003-11-23 devnull 		}
238 7763a61a 2003-11-23 devnull 		if(i < nb-1)
239 7763a61a 2003-11-23 devnull 			Bwrite(bout, buf, s->dsize);
240 7763a61a 2003-11-23 devnull 		else
241 7763a61a 2003-11-23 devnull 			Bwrite(bout, buf, lb);
242 7763a61a 2003-11-23 devnull 	}
243 7763a61a 2003-11-23 devnull }
244 7763a61a 2003-11-23 devnull 
245 7763a61a 2003-11-23 devnull void
246 3d77c87e 2004-03-15 devnull dumpfile(Source *s, int indent)
247 7763a61a 2003-11-23 devnull {
248 7763a61a 2003-11-23 devnull 	int nb, i, j, n;
249 3d77c87e 2004-03-15 devnull 	uchar *buf;
250 7763a61a 2003-11-23 devnull 	uchar score[VtScoreSize];
251 7763a61a 2003-11-23 devnull 
252 3d77c87e 2004-03-15 devnull 	buf = vtmalloc(VtMaxLumpSize);
253 7763a61a 2003-11-23 devnull 	nb = (s->size + s->dsize - 1)/s->dsize;
254 7763a61a 2003-11-23 devnull 	for(i=0; i<nb; i++) {
255 7763a61a 2003-11-23 devnull 		memset(buf, 0, s->dsize);
256 3d77c87e 2004-03-15 devnull 		n = sourceread(s, i, buf, s->dsize);
257 7763a61a 2003-11-23 devnull 		if(n < 0) {	
258 3d77c87e 2004-03-15 devnull 			fprint(2, "could not read block: %d: %r\n", i);
259 7763a61a 2003-11-23 devnull 			continue;
260 7763a61a 2003-11-23 devnull 		}
261 7763a61a 2003-11-23 devnull 		for(j=0; j<indent; j++)
262 7763a61a 2003-11-23 devnull 			Bprint(bout, " ");
263 3d77c87e 2004-03-15 devnull 		sha1(buf, n, score, nil);		
264 7763a61a 2003-11-23 devnull 		Bprint(bout, "%4d: size: %ud: %V\n", i, n, score);
265 7763a61a 2003-11-23 devnull 	}
266 3d77c87e 2004-03-15 devnull 	vtfree(buf);
267 7763a61a 2003-11-23 devnull }
268 7763a61a 2003-11-23 devnull 
269 7763a61a 2003-11-23 devnull int
270 3d77c87e 2004-03-15 devnull dumpdir(Source *s, int indent)
271 7763a61a 2003-11-23 devnull {
272 7763a61a 2003-11-23 devnull 	int pb, ne, nb, i, j, n, entry;
273 7763a61a 2003-11-23 devnull 	Source ss;
274 3d77c87e 2004-03-15 devnull 	uchar *buf;
275 7763a61a 2003-11-23 devnull 
276 3d77c87e 2004-03-15 devnull 	buf = vtmalloc(VtMaxLumpSize);
277 7763a61a 2003-11-23 devnull 	pb = s->dsize/VtEntrySize;
278 7763a61a 2003-11-23 devnull 	ne = pb*(s->size/s->dsize) + (s->size%s->dsize)/VtEntrySize;
279 7763a61a 2003-11-23 devnull 	nb = (s->size + s->dsize - 1)/s->dsize;
280 7763a61a 2003-11-23 devnull 	for(i=0; i<nb; i++) {
281 7763a61a 2003-11-23 devnull 		memset(buf, 0, s->dsize);
282 3d77c87e 2004-03-15 devnull 		n = sourceread(s, i, buf, s->dsize);
283 7763a61a 2003-11-23 devnull 		if(n < 0) {	
284 3d77c87e 2004-03-15 devnull 			fprint(2, "could not read block: %d: %r\n", i);
285 7763a61a 2003-11-23 devnull 			continue;
286 7763a61a 2003-11-23 devnull 		}
287 7763a61a 2003-11-23 devnull 		for(j=0; j<pb; j++) {
288 7763a61a 2003-11-23 devnull 			entry = i*pb + j;
289 7763a61a 2003-11-23 devnull 			if(entry >= ne)
290 7763a61a 2003-11-23 devnull 				break;
291 7763a61a 2003-11-23 devnull 			parse(&ss, buf + j * VtEntrySize);
292 7763a61a 2003-11-23 devnull 
293 7763a61a 2003-11-23 devnull 			if(!find)
294 3d77c87e 2004-03-15 devnull 				sourceprint(&ss, indent, entry);
295 7763a61a 2003-11-23 devnull 			else if(memcmp(ss.score, fscore, VtScoreSize) == 0) {
296 3d77c87e 2004-03-15 devnull 				dumpfilecontents(&ss);
297 3d77c87e 2004-03-15 devnull 				free(buf);
298 3d77c87e 2004-03-15 devnull 				return -1;
299 7763a61a 2003-11-23 devnull 			}
300 7763a61a 2003-11-23 devnull 
301 7763a61a 2003-11-23 devnull 			if(ss.dir) {
302 3d77c87e 2004-03-15 devnull 				if(dumpdir(&ss, indent+1) < 0){
303 3d77c87e 2004-03-15 devnull 					free(buf);
304 3d77c87e 2004-03-15 devnull 					return -1;
305 3d77c87e 2004-03-15 devnull 				}
306 7763a61a 2003-11-23 devnull 			} else if(all)
307 3d77c87e 2004-03-15 devnull 				dumpfile(&ss, indent+1);
308 7763a61a 2003-11-23 devnull 		}
309 7763a61a 2003-11-23 devnull 	}
310 3d77c87e 2004-03-15 devnull 	free(buf);
311 3d77c87e 2004-03-15 devnull 	return 0;
312 7763a61a 2003-11-23 devnull }
313 7763a61a 2003-11-23 devnull 
314 7763a61a 2003-11-23 devnull void
315 7763a61a 2003-11-23 devnull usage(void)
316 7763a61a 2003-11-23 devnull {
317 7763a61a 2003-11-23 devnull 	fprint(2, "%s: [file]\n", argv0);
318 3d77c87e 2004-03-15 devnull 	threadexits("usage");
319 7763a61a 2003-11-23 devnull }
320 7763a61a 2003-11-23 devnull 
321 7763a61a 2003-11-23 devnull void
322 3d77c87e 2004-03-15 devnull readroot(VtRoot *root, uchar *score, char *file)
323 7763a61a 2003-11-23 devnull {
324 7763a61a 2003-11-23 devnull 	int fd;
325 3d77c87e 2004-03-15 devnull 	char *pref;
326 3d77c87e 2004-03-15 devnull 	char buf[VtRootSize];
327 3d77c87e 2004-03-15 devnull 	int n, nn;
328 7763a61a 2003-11-23 devnull 
329 7763a61a 2003-11-23 devnull 	if(file == 0)
330 7763a61a 2003-11-23 devnull 		fd = 0;
331 7763a61a 2003-11-23 devnull 	else {
332 7763a61a 2003-11-23 devnull 		fd = open(file, OREAD);
333 7763a61a 2003-11-23 devnull 		if(fd < 0)
334 7763a61a 2003-11-23 devnull 			sysfatal("could not open file: %s: %r\n", file);
335 7763a61a 2003-11-23 devnull 	}
336 7763a61a 2003-11-23 devnull 	n = readn(fd, buf, sizeof(buf)-1);
337 7763a61a 2003-11-23 devnull 	if(n < 0)
338 7763a61a 2003-11-23 devnull 		sysfatal("read failed: %r\n");
339 3d77c87e 2004-03-15 devnull 	if(n==0 || buf[n-1] != '\n')
340 3d77c87e 2004-03-15 devnull 		sysfatal("not a root file");
341 3d77c87e 2004-03-15 devnull 	buf[n-1] = 0;
342 7763a61a 2003-11-23 devnull 	close(fd);
343 7763a61a 2003-11-23 devnull 
344 3d77c87e 2004-03-15 devnull 	if(vtparsescore(buf, &pref, score) < 0){
345 3d77c87e 2004-03-15 devnull 		sysfatal("not a root file");
346 7763a61a 2003-11-23 devnull 	}
347 3d77c87e 2004-03-15 devnull 	nn = vtread(z, score, VtRootType, buf, VtRootSize);
348 3d77c87e 2004-03-15 devnull 	if(nn < 0)
349 3d77c87e 2004-03-15 devnull 		sysfatal("cannot read root %V", score);
350 3d77c87e 2004-03-15 devnull 	if(vtrootunpack(root, buf) < 0)
351 3d77c87e 2004-03-15 devnull 		sysfatal("cannot parse root: %r");
352 7763a61a 2003-11-23 devnull }