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lib9: dotu fixes in convS2M, convM2S http://codereview.appspot.com/109049
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  1 d3df3087 2003-12-06 devnull #include	<u.h>

  2 d3df3087 2003-12-06 devnull #include	<libc.h>

  3 d3df3087 2003-12-06 devnull #include	<fcall.h>

  4 d3df3087 2003-12-06 devnull 

  5 d3df3087 2003-12-06 devnull static

  6 d3df3087 2003-12-06 devnull uchar*

  7 d3df3087 2003-12-06 devnull gstring(uchar *p, uchar *ep, char **s)

  8 d3df3087 2003-12-06 devnull {

  9 d3df3087 2003-12-06 devnull 	uint n;

 10 d3df3087 2003-12-06 devnull 

 11 d3df3087 2003-12-06 devnull 	if(p+BIT16SZ > ep)

 12 d3df3087 2003-12-06 devnull 		return nil;

 13 d3df3087 2003-12-06 devnull 	n = GBIT16(p);

 14 d3df3087 2003-12-06 devnull 	p += BIT16SZ - 1;

 15 d3df3087 2003-12-06 devnull 	if(p+n+1 > ep)

 16 d3df3087 2003-12-06 devnull 		return nil;

 17 d3df3087 2003-12-06 devnull 	/* move it down, on top of count, to make room for '\0' */

 18 d3df3087 2003-12-06 devnull 	memmove(p, p + 1, n);

 19 d3df3087 2003-12-06 devnull 	p[n] = '\0';

 20 d3df3087 2003-12-06 devnull 	*s = (char*)p;

 21 d3df3087 2003-12-06 devnull 	p += n+1;

 22 d3df3087 2003-12-06 devnull 	return p;

 23 d3df3087 2003-12-06 devnull }

 24 d3df3087 2003-12-06 devnull 

 25 d3df3087 2003-12-06 devnull static

 26 d3df3087 2003-12-06 devnull uchar*

 27 d3df3087 2003-12-06 devnull gqid(uchar *p, uchar *ep, Qid *q)

 28 d3df3087 2003-12-06 devnull {

 29 d3df3087 2003-12-06 devnull 	if(p+QIDSZ > ep)

 30 d3df3087 2003-12-06 devnull 		return nil;

 31 d3df3087 2003-12-06 devnull 	q->type = GBIT8(p);

 32 d3df3087 2003-12-06 devnull 	p += BIT8SZ;

 33 d3df3087 2003-12-06 devnull 	q->vers = GBIT32(p);

 34 d3df3087 2003-12-06 devnull 	p += BIT32SZ;

 35 d3df3087 2003-12-06 devnull 	q->path = GBIT64(p);

 36 d3df3087 2003-12-06 devnull 	p += BIT64SZ;

 37 d3df3087 2003-12-06 devnull 	return p;

 38 d3df3087 2003-12-06 devnull }

 39 d3df3087 2003-12-06 devnull 

 40 d3df3087 2003-12-06 devnull /*

 41 d3df3087 2003-12-06 devnull  * no syntactic checks.

 42 d3df3087 2003-12-06 devnull  * three causes for error:

 43 d3df3087 2003-12-06 devnull  *  1. message size field is incorrect

 44 d3df3087 2003-12-06 devnull  *  2. input buffer too short for its own data (counts too long, etc.)

 45 d3df3087 2003-12-06 devnull  *  3. too many names or qids

 46 d3df3087 2003-12-06 devnull  * gqid() and gstring() return nil if they would reach beyond buffer.

 47 d3df3087 2003-12-06 devnull  * main switch statement checks range and also can fall through

 48 d3df3087 2003-12-06 devnull  * to test at end of routine.

 49 d3df3087 2003-12-06 devnull  */

 50 d3df3087 2003-12-06 devnull uint

 51 fb941e08 2005-09-13 devnull convM2Su(uchar *ap, uint nap, Fcall *f, int dotu)

 52 d3df3087 2003-12-06 devnull {

 53 d3df3087 2003-12-06 devnull 	uchar *p, *ep;

 54 d3df3087 2003-12-06 devnull 	uint i, size;

 55 d3df3087 2003-12-06 devnull 

 56 d3df3087 2003-12-06 devnull 	p = ap;

 57 d3df3087 2003-12-06 devnull 	ep = p + nap;

 58 d3df3087 2003-12-06 devnull 

 59 d3df3087 2003-12-06 devnull 	if(p+BIT32SZ+BIT8SZ+BIT16SZ > ep)

 60 d3df3087 2003-12-06 devnull 		return 0;

 61 d3df3087 2003-12-06 devnull 	size = GBIT32(p);

 62 d3df3087 2003-12-06 devnull 	p += BIT32SZ;

 63 d3df3087 2003-12-06 devnull 

 64 d3df3087 2003-12-06 devnull 	if(size < BIT32SZ+BIT8SZ+BIT16SZ)

 65 d3df3087 2003-12-06 devnull 		return 0;

 66 d3df3087 2003-12-06 devnull 

 67 d3df3087 2003-12-06 devnull 	f->type = GBIT8(p);

 68 d3df3087 2003-12-06 devnull 	p += BIT8SZ;

 69 d3df3087 2003-12-06 devnull 	f->tag = GBIT16(p);

 70 d3df3087 2003-12-06 devnull 	p += BIT16SZ;

 71 d3df3087 2003-12-06 devnull 

 72 d3df3087 2003-12-06 devnull 	switch(f->type)

 73 d3df3087 2003-12-06 devnull 	{

 74 d3df3087 2003-12-06 devnull 	default:

 75 d3df3087 2003-12-06 devnull 		return 0;

 76 d3df3087 2003-12-06 devnull 

 77 d3df3087 2003-12-06 devnull 	case Tversion:

 78 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

 79 d3df3087 2003-12-06 devnull 			return 0;

 80 d3df3087 2003-12-06 devnull 		f->msize = GBIT32(p);

 81 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

 82 d3df3087 2003-12-06 devnull 		p = gstring(p, ep, &f->version);

 83 d3df3087 2003-12-06 devnull 		break;

 84 d3df3087 2003-12-06 devnull 

 85 d3df3087 2003-12-06 devnull 	case Tflush:

 86 d3df3087 2003-12-06 devnull 		if(p+BIT16SZ > ep)

 87 d3df3087 2003-12-06 devnull 			return 0;

 88 d3df3087 2003-12-06 devnull 		f->oldtag = GBIT16(p);

 89 d3df3087 2003-12-06 devnull 		p += BIT16SZ;

 90 d3df3087 2003-12-06 devnull 		break;

 91 d3df3087 2003-12-06 devnull 

 92 d3df3087 2003-12-06 devnull 	case Tauth:

 93 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

 94 d3df3087 2003-12-06 devnull 			return 0;

 95 d3df3087 2003-12-06 devnull 		f->afid = GBIT32(p);

 96 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

 97 d3df3087 2003-12-06 devnull 		p = gstring(p, ep, &f->uname);

 98 d3df3087 2003-12-06 devnull 		if(p == nil)

 99 d3df3087 2003-12-06 devnull 			break;

100 d3df3087 2003-12-06 devnull 		p = gstring(p, ep, &f->aname);

101 d3df3087 2003-12-06 devnull 		if(p == nil)

102 d3df3087 2003-12-06 devnull 			break;

103 8ff457f5 2009-08-20 tim.newsh 		f->uidnum = NOUID;

104 8ff457f5 2009-08-20 tim.newsh 		if(dotu){

105 8ff457f5 2009-08-20 tim.newsh 			if(p+BIT32SZ > ep)

106 8ff457f5 2009-08-20 tim.newsh 				return 0;

107 8ff457f5 2009-08-20 tim.newsh 			f->uidnum = GBIT32(p);

108 8ff457f5 2009-08-20 tim.newsh 			p += BIT32SZ;

109 8ff457f5 2009-08-20 tim.newsh 		}

110 d3df3087 2003-12-06 devnull 		break;

111 d3df3087 2003-12-06 devnull 

112 d3df3087 2003-12-06 devnull 	case Tattach:

113 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

114 d3df3087 2003-12-06 devnull 			return 0;

115 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

116 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

117 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

118 d3df3087 2003-12-06 devnull 			return 0;

119 d3df3087 2003-12-06 devnull 		f->afid = GBIT32(p);

120 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

121 d3df3087 2003-12-06 devnull 		p = gstring(p, ep, &f->uname);

122 d3df3087 2003-12-06 devnull 		if(p == nil)

123 d3df3087 2003-12-06 devnull 			break;

124 d3df3087 2003-12-06 devnull 		p = gstring(p, ep, &f->aname);

125 d3df3087 2003-12-06 devnull 		if(p == nil)

126 d3df3087 2003-12-06 devnull 			break;

127 8ff457f5 2009-08-20 tim.newsh 		f->uidnum = NOUID;

128 8ff457f5 2009-08-20 tim.newsh 		if(dotu){

129 8ff457f5 2009-08-20 tim.newsh 			if(p+BIT32SZ > ep)

130 8ff457f5 2009-08-20 tim.newsh 				return 0;

131 8ff457f5 2009-08-20 tim.newsh 			f->uidnum = GBIT32(p);

132 8ff457f5 2009-08-20 tim.newsh 			p += BIT32SZ;

133 8ff457f5 2009-08-20 tim.newsh 		}

134 d3df3087 2003-12-06 devnull 		break;

135 d3df3087 2003-12-06 devnull 

136 d3df3087 2003-12-06 devnull 	case Twalk:

137 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ+BIT32SZ+BIT16SZ > ep)

138 d3df3087 2003-12-06 devnull 			return 0;

139 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

140 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

141 d3df3087 2003-12-06 devnull 		f->newfid = GBIT32(p);

142 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

143 d3df3087 2003-12-06 devnull 		f->nwname = GBIT16(p);

144 d3df3087 2003-12-06 devnull 		p += BIT16SZ;

145 d3df3087 2003-12-06 devnull 		if(f->nwname > MAXWELEM)

146 d3df3087 2003-12-06 devnull 			return 0;

147 d3df3087 2003-12-06 devnull 		for(i=0; i<f->nwname; i++){

148 d3df3087 2003-12-06 devnull 			p = gstring(p, ep, &f->wname[i]);

149 d3df3087 2003-12-06 devnull 			if(p == nil)

150 d3df3087 2003-12-06 devnull 				break;

151 d3df3087 2003-12-06 devnull 		}

152 d3df3087 2003-12-06 devnull 		break;

153 d3df3087 2003-12-06 devnull 

154 d3df3087 2003-12-06 devnull 	case Topen:

155 32f69c36 2003-12-11 devnull 	case Topenfd:

156 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ+BIT8SZ > ep)

157 d3df3087 2003-12-06 devnull 			return 0;

158 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

159 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

160 d3df3087 2003-12-06 devnull 		f->mode = GBIT8(p);

161 d3df3087 2003-12-06 devnull 		p += BIT8SZ;

162 d3df3087 2003-12-06 devnull 		break;

163 d3df3087 2003-12-06 devnull 

164 d3df3087 2003-12-06 devnull 	case Tcreate:

165 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

166 d3df3087 2003-12-06 devnull 			return 0;

167 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

168 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

169 d3df3087 2003-12-06 devnull 		p = gstring(p, ep, &f->name);

170 d3df3087 2003-12-06 devnull 		if(p == nil)

171 d3df3087 2003-12-06 devnull 			break;

172 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ+BIT8SZ > ep)

173 d3df3087 2003-12-06 devnull 			return 0;

174 d3df3087 2003-12-06 devnull 		f->perm = GBIT32(p);

175 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

176 d3df3087 2003-12-06 devnull 		f->mode = GBIT8(p);

177 d3df3087 2003-12-06 devnull 		p += BIT8SZ;

178 b5c7be2f 2006-03-03 devnull 		if(dotu)

179 b5c7be2f 2006-03-03 devnull 			p = gstring(p, ep, &f->extension);

180 d3df3087 2003-12-06 devnull 		break;

181 d3df3087 2003-12-06 devnull 

182 d3df3087 2003-12-06 devnull 	case Tread:

183 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ+BIT64SZ+BIT32SZ > ep)

184 d3df3087 2003-12-06 devnull 			return 0;

185 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

186 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

187 d3df3087 2003-12-06 devnull 		f->offset = GBIT64(p);

188 d3df3087 2003-12-06 devnull 		p += BIT64SZ;

189 d3df3087 2003-12-06 devnull 		f->count = GBIT32(p);

190 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

191 d3df3087 2003-12-06 devnull 		break;

192 d3df3087 2003-12-06 devnull 

193 d3df3087 2003-12-06 devnull 	case Twrite:

194 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ+BIT64SZ+BIT32SZ > ep)

195 d3df3087 2003-12-06 devnull 			return 0;

196 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

197 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

198 d3df3087 2003-12-06 devnull 		f->offset = GBIT64(p);

199 d3df3087 2003-12-06 devnull 		p += BIT64SZ;

200 d3df3087 2003-12-06 devnull 		f->count = GBIT32(p);

201 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

202 d3df3087 2003-12-06 devnull 		if(p+f->count > ep)

203 d3df3087 2003-12-06 devnull 			return 0;

204 d3df3087 2003-12-06 devnull 		f->data = (char*)p;

205 d3df3087 2003-12-06 devnull 		p += f->count;

206 d3df3087 2003-12-06 devnull 		break;

207 d3df3087 2003-12-06 devnull 

208 d3df3087 2003-12-06 devnull 	case Tclunk:

209 d3df3087 2003-12-06 devnull 	case Tremove:

210 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

211 d3df3087 2003-12-06 devnull 			return 0;

212 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

213 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

214 d3df3087 2003-12-06 devnull 		break;

215 d3df3087 2003-12-06 devnull 

216 d3df3087 2003-12-06 devnull 	case Tstat:

217 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

218 d3df3087 2003-12-06 devnull 			return 0;

219 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

220 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

221 d3df3087 2003-12-06 devnull 		break;

222 d3df3087 2003-12-06 devnull 

223 d3df3087 2003-12-06 devnull 	case Twstat:

224 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ+BIT16SZ > ep)

225 d3df3087 2003-12-06 devnull 			return 0;

226 d3df3087 2003-12-06 devnull 		f->fid = GBIT32(p);

227 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

228 d3df3087 2003-12-06 devnull 		f->nstat = GBIT16(p);

229 d3df3087 2003-12-06 devnull 		p += BIT16SZ;

230 d3df3087 2003-12-06 devnull 		if(p+f->nstat > ep)

231 d3df3087 2003-12-06 devnull 			return 0;

232 d3df3087 2003-12-06 devnull 		f->stat = p;

233 d3df3087 2003-12-06 devnull 		p += f->nstat;

234 d3df3087 2003-12-06 devnull 		break;

235 d3df3087 2003-12-06 devnull 

236 d3df3087 2003-12-06 devnull /*

237 d3df3087 2003-12-06 devnull  */

238 d3df3087 2003-12-06 devnull 	case Rversion:

239 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

240 d3df3087 2003-12-06 devnull 			return 0;

241 d3df3087 2003-12-06 devnull 		f->msize = GBIT32(p);

242 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

243 d3df3087 2003-12-06 devnull 		p = gstring(p, ep, &f->version);

244 d3df3087 2003-12-06 devnull 		break;

245 d3df3087 2003-12-06 devnull 

246 d3df3087 2003-12-06 devnull 	case Rerror:

247 d3df3087 2003-12-06 devnull 		p = gstring(p, ep, &f->ename);

248 fb941e08 2005-09-13 devnull 		f->errornum = 0;

249 fb941e08 2005-09-13 devnull 		if(dotu){

250 8ff457f5 2009-08-20 tim.newsh 			if(p+BIT32SZ > ep)

251 fb941e08 2005-09-13 devnull 				return 0;

252 8ff457f5 2009-08-20 tim.newsh 			f->errornum = GBIT32(p);

253 8ff457f5 2009-08-20 tim.newsh 			p += BIT32SZ;

254 fb941e08 2005-09-13 devnull 		}

255 d3df3087 2003-12-06 devnull 		break;

256 d3df3087 2003-12-06 devnull 

257 d3df3087 2003-12-06 devnull 	case Rflush:

258 d3df3087 2003-12-06 devnull 		break;

259 d3df3087 2003-12-06 devnull 

260 d3df3087 2003-12-06 devnull 	case Rauth:

261 d3df3087 2003-12-06 devnull 		p = gqid(p, ep, &f->aqid);

262 d3df3087 2003-12-06 devnull 		if(p == nil)

263 d3df3087 2003-12-06 devnull 			break;

264 d3df3087 2003-12-06 devnull 		break;

265 d3df3087 2003-12-06 devnull 

266 d3df3087 2003-12-06 devnull 	case Rattach:

267 d3df3087 2003-12-06 devnull 		p = gqid(p, ep, &f->qid);

268 d3df3087 2003-12-06 devnull 		if(p == nil)

269 d3df3087 2003-12-06 devnull 			break;

270 d3df3087 2003-12-06 devnull 		break;

271 d3df3087 2003-12-06 devnull 

272 d3df3087 2003-12-06 devnull 	case Rwalk:

273 d3df3087 2003-12-06 devnull 		if(p+BIT16SZ > ep)

274 d3df3087 2003-12-06 devnull 			return 0;

275 d3df3087 2003-12-06 devnull 		f->nwqid = GBIT16(p);

276 d3df3087 2003-12-06 devnull 		p += BIT16SZ;

277 d3df3087 2003-12-06 devnull 		if(f->nwqid > MAXWELEM)

278 d3df3087 2003-12-06 devnull 			return 0;

279 d3df3087 2003-12-06 devnull 		for(i=0; i<f->nwqid; i++){

280 d3df3087 2003-12-06 devnull 			p = gqid(p, ep, &f->wqid[i]);

281 d3df3087 2003-12-06 devnull 			if(p == nil)

282 d3df3087 2003-12-06 devnull 				break;

283 d3df3087 2003-12-06 devnull 		}

284 d3df3087 2003-12-06 devnull 		break;

285 d3df3087 2003-12-06 devnull 

286 d3df3087 2003-12-06 devnull 	case Ropen:

287 32f69c36 2003-12-11 devnull 	case Ropenfd:

288 d3df3087 2003-12-06 devnull 	case Rcreate:

289 d3df3087 2003-12-06 devnull 		p = gqid(p, ep, &f->qid);

290 d3df3087 2003-12-06 devnull 		if(p == nil)

291 d3df3087 2003-12-06 devnull 			break;

292 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

293 d3df3087 2003-12-06 devnull 			return 0;

294 d3df3087 2003-12-06 devnull 		f->iounit = GBIT32(p);

295 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

296 32f69c36 2003-12-11 devnull 		if(f->type == Ropenfd){

297 32f69c36 2003-12-11 devnull 			if(p+BIT32SZ > ep)

298 32f69c36 2003-12-11 devnull 				return 0;

299 32f69c36 2003-12-11 devnull 			f->unixfd = GBIT32(p);

300 32f69c36 2003-12-11 devnull 			p += BIT32SZ;

301 32f69c36 2003-12-11 devnull 		}

302 d3df3087 2003-12-06 devnull 		break;

303 d3df3087 2003-12-06 devnull 

304 d3df3087 2003-12-06 devnull 	case Rread:

305 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

306 d3df3087 2003-12-06 devnull 			return 0;

307 d3df3087 2003-12-06 devnull 		f->count = GBIT32(p);

308 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

309 d3df3087 2003-12-06 devnull 		if(p+f->count > ep)

310 d3df3087 2003-12-06 devnull 			return 0;

311 d3df3087 2003-12-06 devnull 		f->data = (char*)p;

312 d3df3087 2003-12-06 devnull 		p += f->count;

313 d3df3087 2003-12-06 devnull 		break;

314 d3df3087 2003-12-06 devnull 

315 d3df3087 2003-12-06 devnull 	case Rwrite:

316 d3df3087 2003-12-06 devnull 		if(p+BIT32SZ > ep)

317 d3df3087 2003-12-06 devnull 			return 0;

318 d3df3087 2003-12-06 devnull 		f->count = GBIT32(p);

319 d3df3087 2003-12-06 devnull 		p += BIT32SZ;

320 d3df3087 2003-12-06 devnull 		break;

321 d3df3087 2003-12-06 devnull 

322 d3df3087 2003-12-06 devnull 	case Rclunk:

323 d3df3087 2003-12-06 devnull 	case Rremove:

324 d3df3087 2003-12-06 devnull 		break;

325 d3df3087 2003-12-06 devnull 

326 d3df3087 2003-12-06 devnull 	case Rstat:

327 d3df3087 2003-12-06 devnull 		if(p+BIT16SZ > ep)

328 d3df3087 2003-12-06 devnull 			return 0;

329 d3df3087 2003-12-06 devnull 		f->nstat = GBIT16(p);

330 d3df3087 2003-12-06 devnull 		p += BIT16SZ;

331 d3df3087 2003-12-06 devnull 		if(p+f->nstat > ep)

332 d3df3087 2003-12-06 devnull 			return 0;

333 d3df3087 2003-12-06 devnull 		f->stat = p;

334 d3df3087 2003-12-06 devnull 		p += f->nstat;

335 d3df3087 2003-12-06 devnull 		break;

336 d3df3087 2003-12-06 devnull 

337 d3df3087 2003-12-06 devnull 	case Rwstat:

338 d3df3087 2003-12-06 devnull 		break;

339 d3df3087 2003-12-06 devnull 	}

340 d3df3087 2003-12-06 devnull 

341 d3df3087 2003-12-06 devnull 	if(p==nil || p>ep)

342 d3df3087 2003-12-06 devnull 		return 0;

343 d3df3087 2003-12-06 devnull 	if(ap+size == p)

344 d3df3087 2003-12-06 devnull 		return size;

345 d3df3087 2003-12-06 devnull 	return 0;

346 d3df3087 2003-12-06 devnull }

347 fb941e08 2005-09-13 devnull 

348 fb941e08 2005-09-13 devnull uint

349 fb941e08 2005-09-13 devnull convM2S(uchar *ap, uint nap, Fcall *f)

350 fb941e08 2005-09-13 devnull {

351 fb941e08 2005-09-13 devnull 	return convM2Su(ap, nap, f, 0);

352 fb941e08 2005-09-13 devnull }