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Rev 2847 | Rev 2852 | ||
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Line 148... | Line 148... | ||
148 | if (last < next) |
148 | if (last < next) |
149 | last += PLB_SIZE; |
149 | last += PLB_SIZE; |
150 | 150 | ||
151 | void *par = NULL; |
151 | void *par = NULL; |
152 | void *cur = ops->root_get(dev_handle); |
152 | void *cur = ops->root_get(dev_handle); |
- | 153 | void *tmp = NULL; |
|
153 | 154 | ||
154 | if (ops->plb_get_char(next) == '/') |
155 | if (ops->plb_get_char(next) == '/') |
155 | next++; /* eat slash */ |
156 | next++; /* eat slash */ |
156 | 157 | ||
157 | while (ops->has_children(cur) && next <= last) { |
158 | while (ops->has_children(cur) && next <= last) { |
158 | void *tmp; |
- | |
159 | - | ||
160 | /* collect the component */ |
159 | /* collect the component */ |
161 | len = 0; |
160 | len = 0; |
162 | while ((ops->plb_get_char(next) != '/') && (next <= last)) { |
161 | while ((ops->plb_get_char(next) != '/') && (next <= last)) { |
163 | if (len + 1 == NAME_MAX) { |
162 | if (len + 1 == NAME_MAX) { |
164 | /* comopnent length overflow */ |
163 | /* comopnent length overflow */ |
165 | ipc_answer_0(rid, ENAMETOOLONG); |
164 | ipc_answer_0(rid, ENAMETOOLONG); |
166 | return; |
165 | goto out; |
167 | } |
166 | } |
168 | component[len++] = ops->plb_get_char(next); |
167 | component[len++] = ops->plb_get_char(next); |
169 | next++; /* process next character */ |
168 | next++; /* process next character */ |
170 | } |
169 | } |
171 | 170 | ||
Line 179... | Line 178... | ||
179 | /* handle miss: match amongst siblings */ |
178 | /* handle miss: match amongst siblings */ |
180 | if (!tmp) { |
179 | if (!tmp) { |
181 | if (next <= last) { |
180 | if (next <= last) { |
182 | /* there are unprocessed components */ |
181 | /* there are unprocessed components */ |
183 | ipc_answer_0(rid, ENOENT); |
182 | ipc_answer_0(rid, ENOENT); |
184 | return; |
183 | goto out; |
185 | } |
184 | } |
186 | /* miss in the last component */ |
185 | /* miss in the last component */ |
187 | if (lflag & (L_CREATE | L_LINK)) { |
186 | if (lflag & (L_CREATE | L_LINK)) { |
188 | /* request to create a new link */ |
187 | /* request to create a new link */ |
189 | if (!ops->is_directory(cur)) { |
188 | if (!ops->is_directory(cur)) { |
190 | ipc_answer_0(rid, ENOTDIR); |
189 | ipc_answer_0(rid, ENOTDIR); |
191 | return; |
190 | goto out; |
192 | } |
191 | } |
193 | void *nodep; |
192 | void *nodep; |
194 | if (lflag & L_CREATE) |
193 | if (lflag & L_CREATE) |
195 | nodep = ops->create(lflag); |
194 | nodep = ops->create(lflag); |
196 | else |
195 | else |
Line 205... | Line 204... | ||
205 | ipc_answer_5(rid, EOK, |
204 | ipc_answer_5(rid, EOK, |
206 | fs_handle, dev_handle, |
205 | fs_handle, dev_handle, |
207 | ops->index_get(nodep), |
206 | ops->index_get(nodep), |
208 | ops->size_get(nodep), |
207 | ops->size_get(nodep), |
209 | ops->lnkcnt_get(nodep)); |
208 | ops->lnkcnt_get(nodep)); |
- | 209 | ops->node_put(nodep); |
|
210 | } |
210 | } |
211 | } else { |
211 | } else { |
212 | ipc_answer_0(rid, ENOSPC); |
212 | ipc_answer_0(rid, ENOSPC); |
213 | } |
213 | } |
214 | return; |
214 | goto out; |
215 | } else if (lflag & L_PARENT) { |
215 | } else if (lflag & L_PARENT) { |
216 | /* return parent */ |
216 | /* return parent */ |
217 | ipc_answer_5(rid, EOK, fs_handle, dev_handle, |
217 | ipc_answer_5(rid, EOK, fs_handle, dev_handle, |
218 | ops->index_get(cur), ops->size_get(cur), |
218 | ops->index_get(cur), ops->size_get(cur), |
219 | ops->lnkcnt_get(cur)); |
219 | ops->lnkcnt_get(cur)); |
220 | } |
220 | } |
221 | ipc_answer_0(rid, ENOENT); |
221 | ipc_answer_0(rid, ENOENT); |
222 | return; |
222 | goto out; |
223 | } |
223 | } |
224 | 224 | ||
- | 225 | if (par) |
|
- | 226 | ops->node_put(par); |
|
- | 227 | ||
225 | /* descend one level */ |
228 | /* descend one level */ |
226 | par = cur; |
229 | par = cur; |
227 | cur = tmp; |
230 | cur = tmp; |
- | 231 | tmp = NULL; |
|
228 | } |
232 | } |
229 | 233 | ||
230 | /* handle miss: excessive components */ |
234 | /* handle miss: excessive components */ |
231 | if (!ops->has_children(cur) && next <= last) { |
235 | if (!ops->has_children(cur) && next <= last) { |
232 | if (lflag & (L_CREATE | L_LINK)) { |
236 | if (lflag & (L_CREATE | L_LINK)) { |
233 | if (!ops->is_directory(cur)) { |
237 | if (!ops->is_directory(cur)) { |
234 | ipc_answer_0(rid, ENOTDIR); |
238 | ipc_answer_0(rid, ENOTDIR); |
235 | return; |
239 | goto out; |
236 | } |
240 | } |
237 | 241 | ||
238 | /* collect next component */ |
242 | /* collect next component */ |
239 | len = 0; |
243 | len = 0; |
240 | while (next <= last) { |
244 | while (next <= last) { |
241 | if (ops->plb_get_char(next) == '/') { |
245 | if (ops->plb_get_char(next) == '/') { |
242 | /* more than one component */ |
246 | /* more than one component */ |
243 | ipc_answer_0(rid, ENOENT); |
247 | ipc_answer_0(rid, ENOENT); |
244 | return; |
248 | goto out; |
245 | } |
249 | } |
246 | if (len + 1 == NAME_MAX) { |
250 | if (len + 1 == NAME_MAX) { |
247 | /* component length overflow */ |
251 | /* component length overflow */ |
248 | ipc_answer_0(rid, ENAMETOOLONG); |
252 | ipc_answer_0(rid, ENAMETOOLONG); |
249 | return; |
253 | goto out; |
250 | } |
254 | } |
251 | component[len++] = ops->plb_get_char(next); |
255 | component[len++] = ops->plb_get_char(next); |
252 | next++; /* process next character */ |
256 | next++; /* process next character */ |
253 | } |
257 | } |
254 | assert(len); |
258 | assert(len); |
Line 269... | Line 273... | ||
269 | ipc_answer_5(rid, EOK, |
273 | ipc_answer_5(rid, EOK, |
270 | fs_handle, dev_handle, |
274 | fs_handle, dev_handle, |
271 | ops->index_get(nodep), |
275 | ops->index_get(nodep), |
272 | ops->size_get(nodep), |
276 | ops->size_get(nodep), |
273 | ops->lnkcnt_get(nodep)); |
277 | ops->lnkcnt_get(nodep)); |
- | 278 | ops->node_put(nodep); |
|
274 | } |
279 | } |
275 | } else { |
280 | } else { |
276 | ipc_answer_0(rid, ENOSPC); |
281 | ipc_answer_0(rid, ENOSPC); |
277 | } |
282 | } |
278 | return; |
283 | goto out; |
279 | } |
284 | } |
280 | ipc_answer_0(rid, ENOENT); |
285 | ipc_answer_0(rid, ENOENT); |
281 | return; |
286 | goto out; |
282 | } |
287 | } |
283 | 288 | ||
284 | /* handle hit */ |
289 | /* handle hit */ |
285 | if (lflag & L_PARENT) { |
290 | if (lflag & L_PARENT) { |
- | 291 | ops->node_put(cur); |
|
286 | cur = par; |
292 | cur = par; |
- | 293 | par = NULL; |
|
287 | if (!cur) { |
294 | if (!cur) { |
288 | ipc_answer_0(rid, ENOENT); |
295 | ipc_answer_0(rid, ENOENT); |
289 | return; |
296 | goto out; |
290 | } |
297 | } |
291 | } |
298 | } |
292 | if (lflag & L_UNLINK) { |
299 | if (lflag & L_UNLINK) { |
293 | unsigned old_lnkcnt = ops->lnkcnt_get(cur); |
300 | unsigned old_lnkcnt = ops->lnkcnt_get(cur); |
294 | int res = ops->unlink(par, cur); |
301 | int res = ops->unlink(par, cur); |
295 | ipc_answer_5(rid, (ipcarg_t)res, fs_handle, dev_handle, |
302 | ipc_answer_5(rid, (ipcarg_t)res, fs_handle, dev_handle, |
296 | ops->index_get(cur), ops->size_get(cur), old_lnkcnt); |
303 | ops->index_get(cur), ops->size_get(cur), old_lnkcnt); |
297 | return; |
304 | goto out; |
298 | } |
305 | } |
299 | if (((lflag & (L_CREATE | L_EXCLUSIVE)) == (L_CREATE | L_EXCLUSIVE)) || |
306 | if (((lflag & (L_CREATE | L_EXCLUSIVE)) == (L_CREATE | L_EXCLUSIVE)) || |
300 | (lflag & L_LINK)) { |
307 | (lflag & L_LINK)) { |
301 | ipc_answer_0(rid, EEXIST); |
308 | ipc_answer_0(rid, EEXIST); |
302 | return; |
309 | goto out; |
303 | } |
310 | } |
304 | if ((lflag & L_FILE) && (ops->is_directory(cur))) { |
311 | if ((lflag & L_FILE) && (ops->is_directory(cur))) { |
305 | ipc_answer_0(rid, EISDIR); |
312 | ipc_answer_0(rid, EISDIR); |
306 | return; |
313 | goto out; |
307 | } |
314 | } |
308 | if ((lflag & L_DIRECTORY) && (ops->is_file(cur))) { |
315 | if ((lflag & L_DIRECTORY) && (ops->is_file(cur))) { |
309 | ipc_answer_0(rid, ENOTDIR); |
316 | ipc_answer_0(rid, ENOTDIR); |
310 | return; |
317 | goto out; |
311 | } |
318 | } |
312 | 319 | ||
313 | ipc_answer_5(rid, EOK, fs_handle, dev_handle, ops->index_get(cur), |
320 | ipc_answer_5(rid, EOK, fs_handle, dev_handle, ops->index_get(cur), |
314 | ops->size_get(cur), ops->lnkcnt_get(cur)); |
321 | ops->size_get(cur), ops->lnkcnt_get(cur)); |
- | 322 | ||
- | 323 | out: |
|
- | 324 | if (par) |
|
- | 325 | ops->node_put(par); |
|
- | 326 | if (cur) |
|
- | 327 | ops->node_put(cur); |
|
- | 328 | if (tmp) |
|
- | 329 | ops->node_put(tmp); |
|
315 | } |
330 | } |
316 | 331 | ||
317 | /** @} |
332 | /** @} |
318 | */ |
333 | */ |