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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Jakub Jermar |
2 | * Copyright (c) 2008 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup libc |
29 | /** @addtogroup libc |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <vfs/vfs.h> |
35 | #include <vfs/vfs.h> |
36 | #include <vfs/canonify.h> |
36 | #include <vfs/canonify.h> |
37 | #include <stdlib.h> |
37 | #include <stdlib.h> |
38 | #include <unistd.h> |
38 | #include <unistd.h> |
39 | #include <dirent.h> |
39 | #include <dirent.h> |
40 | #include <fcntl.h> |
40 | #include <fcntl.h> |
41 | #include <sys/stat.h> |
41 | #include <sys/stat.h> |
42 | #include <sys/types.h> |
42 | #include <sys/types.h> |
43 | #include <ipc/ipc.h> |
43 | #include <ipc/ipc.h> |
44 | #include <ipc/services.h> |
44 | #include <ipc/services.h> |
45 | #include <async.h> |
45 | #include <async.h> |
46 | #include <atomic.h> |
46 | #include <atomic.h> |
47 | #include <futex.h> |
47 | #include <futex.h> |
48 | #include <errno.h> |
48 | #include <errno.h> |
49 | #include <string.h> |
49 | #include <string.h> |
50 | #include "../../srv/vfs/vfs.h" |
50 | #include "../../srv/vfs/vfs.h" |
51 | 51 | ||
52 | int vfs_phone = -1; |
52 | int vfs_phone = -1; |
53 | futex_t vfs_phone_futex = FUTEX_INITIALIZER; |
53 | futex_t vfs_phone_futex = FUTEX_INITIALIZER; |
54 | 54 | ||
55 | futex_t cwd_futex = FUTEX_INITIALIZER; |
55 | futex_t cwd_futex = FUTEX_INITIALIZER; |
56 | DIR *cwd_dir = NULL; |
56 | DIR *cwd_dir = NULL; |
57 | char *cwd_path = NULL; |
57 | char *cwd_path = NULL; |
58 | size_t cwd_len = 0; |
58 | size_t cwd_len = 0; |
59 | 59 | ||
60 | static char *absolutize(const char *path) |
60 | static char *absolutize(const char *path) |
61 | { |
61 | { |
62 | char *ncwd_path; |
62 | char *ncwd_path; |
63 | 63 | ||
64 | futex_down(&cwd_futex); |
64 | futex_down(&cwd_futex); |
65 | size_t len = strlen(path); |
65 | size_t len = strlen(path); |
66 | if (*path != '/') { |
66 | if (*path != '/') { |
67 | if (!cwd_path) { |
67 | if (!cwd_path) { |
68 | futex_up(&cwd_futex); |
68 | futex_up(&cwd_futex); |
69 | return NULL; |
69 | return NULL; |
70 | } |
70 | } |
71 | ncwd_path = malloc(len + cwd_len + 1); |
71 | ncwd_path = malloc(len + cwd_len + 1); |
72 | if (!ncwd_path) { |
72 | if (!ncwd_path) { |
73 | futex_up(&cwd_futex); |
73 | futex_up(&cwd_futex); |
74 | return NULL; |
74 | return NULL; |
75 | } |
75 | } |
76 | strcpy(ncwd_path, cwd_path); |
76 | strcpy(ncwd_path, cwd_path); |
77 | ncwd_path[cwd_len] = '/'; |
77 | ncwd_path[cwd_len] = '/'; |
78 | ncwd_path[cwd_len + 1] = '\0'; |
78 | ncwd_path[cwd_len + 1] = '\0'; |
79 | } else { |
79 | } else { |
80 | ncwd_path = malloc(len + 1); |
80 | ncwd_path = malloc(len + 1); |
81 | if (!ncwd_path) { |
81 | if (!ncwd_path) { |
82 | futex_up(&cwd_futex); |
82 | futex_up(&cwd_futex); |
83 | return NULL; |
83 | return NULL; |
84 | } |
84 | } |
85 | ncwd_path[0] = '\0'; |
85 | ncwd_path[0] = '\0'; |
86 | } |
86 | } |
87 | strcat(ncwd_path, path); |
87 | strcat(ncwd_path, path); |
88 | futex_up(&cwd_futex); |
88 | futex_up(&cwd_futex); |
89 | return ncwd_path; |
89 | return ncwd_path; |
90 | } |
90 | } |
91 | 91 | ||
92 | static int vfs_connect(void) |
92 | static int vfs_connect(void) |
93 | { |
93 | { |
94 | if (vfs_phone < 0) |
94 | if (vfs_phone < 0) |
95 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0); |
95 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0); |
96 | return vfs_phone; |
96 | return vfs_phone; |
97 | } |
97 | } |
98 | 98 | ||
99 | int mount(const char *fs_name, const char *mp, const char *dev) |
99 | int mount(const char *fs_name, const char *mp, const char *dev) |
100 | { |
100 | { |
101 | int res; |
101 | int res; |
102 | ipcarg_t rc; |
102 | ipcarg_t rc; |
103 | aid_t req; |
103 | aid_t req; |
104 | 104 | ||
105 | int dev_handle = 0; /* TODO */ |
105 | int dev_handle = 0; /* TODO */ |
106 | 106 | ||
107 | char *mpa = absolutize(mp); |
107 | char *mpa = absolutize(mp); |
108 | if (!mpa) |
108 | if (!mpa) |
109 | return ENOMEM; |
109 | return ENOMEM; |
110 | size_t mpc_len; |
110 | size_t mpc_len; |
111 | char *mpc = canonify(mpa, &mpc_len); |
111 | char *mpc = canonify(mpa, &mpc_len); |
112 | if (!mpc) { |
112 | if (!mpc) { |
113 | free(mpa); |
113 | free(mpa); |
114 | return EINVAL; |
114 | return EINVAL; |
115 | } |
115 | } |
116 | 116 | ||
117 | futex_down(&vfs_phone_futex); |
117 | futex_down(&vfs_phone_futex); |
118 | async_serialize_start(); |
118 | async_serialize_start(); |
119 | if (vfs_phone < 0) { |
119 | if (vfs_phone < 0) { |
120 | res = vfs_connect(); |
120 | res = vfs_connect(); |
121 | if (res < 0) { |
121 | if (res < 0) { |
122 | async_serialize_end(); |
122 | async_serialize_end(); |
123 | futex_up(&vfs_phone_futex); |
123 | futex_up(&vfs_phone_futex); |
124 | free(mpa); |
124 | free(mpa); |
125 | return res; |
125 | return res; |
126 | } |
126 | } |
127 | } |
127 | } |
128 | req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL); |
128 | req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL); |
129 | rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name)); |
129 | rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name)); |
130 | if (rc != EOK) { |
130 | if (rc != EOK) { |
131 | async_wait_for(req, NULL); |
131 | async_wait_for(req, NULL); |
132 | async_serialize_end(); |
132 | async_serialize_end(); |
133 | futex_up(&vfs_phone_futex); |
133 | futex_up(&vfs_phone_futex); |
134 | free(mpa); |
134 | free(mpa); |
135 | return (int) rc; |
135 | return (int) rc; |
136 | } |
136 | } |
137 | rc = ipc_data_write_start(vfs_phone, (void *)mpc, mpc_len); |
137 | rc = ipc_data_write_start(vfs_phone, (void *)mpc, mpc_len); |
138 | if (rc != EOK) { |
138 | if (rc != EOK) { |
139 | async_wait_for(req, NULL); |
139 | async_wait_for(req, NULL); |
140 | async_serialize_end(); |
140 | async_serialize_end(); |
141 | futex_up(&vfs_phone_futex); |
141 | futex_up(&vfs_phone_futex); |
142 | free(mpa); |
142 | free(mpa); |
143 | return (int) rc; |
143 | return (int) rc; |
144 | } |
144 | } |
145 | async_wait_for(req, &rc); |
145 | async_wait_for(req, &rc); |
146 | async_serialize_end(); |
146 | async_serialize_end(); |
147 | futex_up(&vfs_phone_futex); |
147 | futex_up(&vfs_phone_futex); |
148 | free(mpa); |
148 | free(mpa); |
149 | return (int) rc; |
149 | return (int) rc; |
150 | } |
150 | } |
151 | 151 | ||
152 | static int _open(const char *path, int lflag, int oflag, ...) |
152 | static int _open(const char *path, int lflag, int oflag, ...) |
153 | { |
153 | { |
154 | int res; |
154 | int res; |
155 | ipcarg_t rc; |
155 | ipcarg_t rc; |
156 | ipc_call_t answer; |
156 | ipc_call_t answer; |
157 | aid_t req; |
157 | aid_t req; |
158 | 158 | ||
159 | char *pa = absolutize(path); |
159 | char *pa = absolutize(path); |
160 | if (!pa) |
160 | if (!pa) |
161 | return ENOMEM; |
161 | return ENOMEM; |
162 | size_t pc_len; |
162 | size_t pc_len; |
163 | char *pc = canonify(pa, &pc_len); |
163 | char *pc = canonify(pa, &pc_len); |
164 | if (!pc) { |
164 | if (!pc) { |
165 | free(pa); |
165 | free(pa); |
166 | return EINVAL; |
166 | return EINVAL; |
167 | } |
167 | } |
168 | 168 | ||
169 | futex_down(&vfs_phone_futex); |
169 | futex_down(&vfs_phone_futex); |
170 | async_serialize_start(); |
170 | async_serialize_start(); |
171 | if (vfs_phone < 0) { |
171 | if (vfs_phone < 0) { |
172 | res = vfs_connect(); |
172 | res = vfs_connect(); |
173 | if (res < 0) { |
173 | if (res < 0) { |
174 | async_serialize_end(); |
174 | async_serialize_end(); |
175 | futex_up(&vfs_phone_futex); |
175 | futex_up(&vfs_phone_futex); |
176 | free(pa); |
176 | free(pa); |
177 | return res; |
177 | return res; |
178 | } |
178 | } |
179 | } |
179 | } |
180 | req = async_send_3(vfs_phone, VFS_OPEN, lflag, oflag, 0, &answer); |
180 | req = async_send_3(vfs_phone, VFS_OPEN, lflag, oflag, 0, &answer); |
181 | rc = ipc_data_write_start(vfs_phone, pc, pc_len); |
181 | rc = ipc_data_write_start(vfs_phone, pc, pc_len); |
182 | if (rc != EOK) { |
182 | if (rc != EOK) { |
183 | async_wait_for(req, NULL); |
183 | async_wait_for(req, NULL); |
184 | async_serialize_end(); |
184 | async_serialize_end(); |
185 | futex_up(&vfs_phone_futex); |
185 | futex_up(&vfs_phone_futex); |
186 | free(pa); |
186 | free(pa); |
187 | return (int) rc; |
187 | return (int) rc; |
188 | } |
188 | } |
189 | async_wait_for(req, &rc); |
189 | async_wait_for(req, &rc); |
190 | async_serialize_end(); |
190 | async_serialize_end(); |
191 | futex_up(&vfs_phone_futex); |
191 | futex_up(&vfs_phone_futex); |
192 | free(pa); |
192 | free(pa); |
193 | return (int) IPC_GET_ARG1(answer); |
193 | return (int) IPC_GET_ARG1(answer); |
194 | } |
194 | } |
195 | 195 | ||
196 | int open(const char *path, int oflag, ...) |
196 | int open(const char *path, int oflag, ...) |
197 | { |
197 | { |
198 | return _open(path, L_FILE, oflag); |
198 | return _open(path, L_FILE, oflag); |
199 | } |
199 | } |
200 | 200 | ||
201 | int close(int fildes) |
201 | int close(int fildes) |
202 | { |
202 | { |
203 | int res; |
203 | int res; |
204 | ipcarg_t rc; |
204 | ipcarg_t rc; |
205 | 205 | ||
206 | futex_down(&vfs_phone_futex); |
206 | futex_down(&vfs_phone_futex); |
207 | async_serialize_start(); |
207 | async_serialize_start(); |
208 | if (vfs_phone < 0) { |
208 | if (vfs_phone < 0) { |
209 | res = vfs_connect(); |
209 | res = vfs_connect(); |
210 | if (res < 0) { |
210 | if (res < 0) { |
211 | async_serialize_end(); |
211 | async_serialize_end(); |
212 | futex_up(&vfs_phone_futex); |
212 | futex_up(&vfs_phone_futex); |
213 | return res; |
213 | return res; |
214 | } |
214 | } |
215 | } |
215 | } |
216 | 216 | ||
217 | rc = async_req_1_0(vfs_phone, VFS_CLOSE, fildes); |
217 | rc = async_req_1_0(vfs_phone, VFS_CLOSE, fildes); |
218 | 218 | ||
219 | async_serialize_end(); |
219 | async_serialize_end(); |
220 | futex_up(&vfs_phone_futex); |
220 | futex_up(&vfs_phone_futex); |
221 | 221 | ||
222 | return (int)rc; |
222 | return (int)rc; |
223 | } |
223 | } |
224 | 224 | ||
225 | ssize_t read(int fildes, void *buf, size_t nbyte) |
225 | ssize_t read(int fildes, void *buf, size_t nbyte) |
226 | { |
226 | { |
227 | int res; |
227 | int res; |
228 | ipcarg_t rc; |
228 | ipcarg_t rc; |
229 | ipc_call_t answer; |
229 | ipc_call_t answer; |
230 | aid_t req; |
230 | aid_t req; |
231 | 231 | ||
232 | futex_down(&vfs_phone_futex); |
232 | futex_down(&vfs_phone_futex); |
233 | async_serialize_start(); |
233 | async_serialize_start(); |
234 | if (vfs_phone < 0) { |
234 | if (vfs_phone < 0) { |
235 | res = vfs_connect(); |
235 | res = vfs_connect(); |
236 | if (res < 0) { |
236 | if (res < 0) { |
237 | async_serialize_end(); |
237 | async_serialize_end(); |
238 | futex_up(&vfs_phone_futex); |
238 | futex_up(&vfs_phone_futex); |
239 | return res; |
239 | return res; |
240 | } |
240 | } |
241 | } |
241 | } |
242 | req = async_send_1(vfs_phone, VFS_READ, fildes, &answer); |
242 | req = async_send_1(vfs_phone, VFS_READ, fildes, &answer); |
243 | rc = ipc_data_read_start(vfs_phone, (void *)buf, nbyte); |
243 | rc = ipc_data_read_start(vfs_phone, (void *)buf, nbyte); |
244 | if (rc != EOK) { |
244 | if (rc != EOK) { |
245 | async_wait_for(req, NULL); |
245 | async_wait_for(req, NULL); |
246 | async_serialize_end(); |
246 | async_serialize_end(); |
247 | futex_up(&vfs_phone_futex); |
247 | futex_up(&vfs_phone_futex); |
248 | return (ssize_t) rc; |
248 | return (ssize_t) rc; |
249 | } |
249 | } |
250 | async_wait_for(req, &rc); |
250 | async_wait_for(req, &rc); |
251 | async_serialize_end(); |
251 | async_serialize_end(); |
252 | futex_up(&vfs_phone_futex); |
252 | futex_up(&vfs_phone_futex); |
253 | if (rc == EOK) |
253 | if (rc == EOK) |
254 | return (ssize_t) IPC_GET_ARG1(answer); |
254 | return (ssize_t) IPC_GET_ARG1(answer); |
255 | else |
255 | else |
256 | return -1; |
256 | return -1; |
257 | } |
257 | } |
258 | 258 | ||
259 | ssize_t write(int fildes, const void *buf, size_t nbyte) |
259 | ssize_t write(int fildes, const void *buf, size_t nbyte) |
260 | { |
260 | { |
261 | int res; |
261 | int res; |
262 | ipcarg_t rc; |
262 | ipcarg_t rc; |
263 | ipc_call_t answer; |
263 | ipc_call_t answer; |
264 | aid_t req; |
264 | aid_t req; |
265 | 265 | ||
266 | futex_down(&vfs_phone_futex); |
266 | futex_down(&vfs_phone_futex); |
267 | async_serialize_start(); |
267 | async_serialize_start(); |
268 | if (vfs_phone < 0) { |
268 | if (vfs_phone < 0) { |
269 | res = vfs_connect(); |
269 | res = vfs_connect(); |
270 | if (res < 0) { |
270 | if (res < 0) { |
271 | async_serialize_end(); |
271 | async_serialize_end(); |
272 | futex_up(&vfs_phone_futex); |
272 | futex_up(&vfs_phone_futex); |
273 | return res; |
273 | return res; |
274 | } |
274 | } |
275 | } |
275 | } |
276 | req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer); |
276 | req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer); |
277 | rc = ipc_data_write_start(vfs_phone, (void *)buf, nbyte); |
277 | rc = ipc_data_write_start(vfs_phone, (void *)buf, nbyte); |
278 | if (rc != EOK) { |
278 | if (rc != EOK) { |
279 | async_wait_for(req, NULL); |
279 | async_wait_for(req, NULL); |
280 | async_serialize_end(); |
280 | async_serialize_end(); |
281 | futex_up(&vfs_phone_futex); |
281 | futex_up(&vfs_phone_futex); |
282 | return (ssize_t) rc; |
282 | return (ssize_t) rc; |
283 | } |
283 | } |
284 | async_wait_for(req, &rc); |
284 | async_wait_for(req, &rc); |
285 | async_serialize_end(); |
285 | async_serialize_end(); |
286 | futex_up(&vfs_phone_futex); |
286 | futex_up(&vfs_phone_futex); |
287 | if (rc == EOK) |
287 | if (rc == EOK) |
288 | return (ssize_t) IPC_GET_ARG1(answer); |
288 | return (ssize_t) IPC_GET_ARG1(answer); |
289 | else |
289 | else |
290 | return -1; |
290 | return -1; |
291 | } |
291 | } |
292 | 292 | ||
293 | off_t lseek(int fildes, off_t offset, int whence) |
293 | off_t lseek(int fildes, off_t offset, int whence) |
294 | { |
294 | { |
295 | int res; |
295 | int res; |
296 | ipcarg_t rc; |
296 | ipcarg_t rc; |
297 | 297 | ||
298 | futex_down(&vfs_phone_futex); |
298 | futex_down(&vfs_phone_futex); |
299 | async_serialize_start(); |
299 | async_serialize_start(); |
300 | if (vfs_phone < 0) { |
300 | if (vfs_phone < 0) { |
301 | res = vfs_connect(); |
301 | res = vfs_connect(); |
302 | if (res < 0) { |
302 | if (res < 0) { |
303 | async_serialize_end(); |
303 | async_serialize_end(); |
304 | futex_up(&vfs_phone_futex); |
304 | futex_up(&vfs_phone_futex); |
305 | return res; |
305 | return res; |
306 | } |
306 | } |
307 | } |
307 | } |
308 | 308 | ||
309 | off_t newoffs; |
309 | off_t newoffs; |
310 | rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence, |
310 | rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence, |
311 | (ipcarg_t)&newoffs); |
311 | (ipcarg_t)&newoffs); |
312 | 312 | ||
313 | async_serialize_end(); |
313 | async_serialize_end(); |
314 | futex_up(&vfs_phone_futex); |
314 | futex_up(&vfs_phone_futex); |
315 | 315 | ||
316 | if (rc != EOK) |
316 | if (rc != EOK) |
317 | return (off_t) -1; |
317 | return (off_t) -1; |
318 | 318 | ||
319 | return newoffs; |
319 | return newoffs; |
320 | } |
320 | } |
321 | 321 | ||
322 | int ftruncate(int fildes, off_t length) |
322 | int ftruncate(int fildes, off_t length) |
323 | { |
323 | { |
324 | int res; |
324 | int res; |
325 | ipcarg_t rc; |
325 | ipcarg_t rc; |
326 | 326 | ||
327 | futex_down(&vfs_phone_futex); |
327 | futex_down(&vfs_phone_futex); |
328 | async_serialize_start(); |
328 | async_serialize_start(); |
329 | if (vfs_phone < 0) { |
329 | if (vfs_phone < 0) { |
330 | res = vfs_connect(); |
330 | res = vfs_connect(); |
331 | if (res < 0) { |
331 | if (res < 0) { |
332 | async_serialize_end(); |
332 | async_serialize_end(); |
333 | futex_up(&vfs_phone_futex); |
333 | futex_up(&vfs_phone_futex); |
334 | return res; |
334 | return res; |
335 | } |
335 | } |
336 | } |
336 | } |
337 | rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length); |
337 | rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length); |
338 | async_serialize_end(); |
338 | async_serialize_end(); |
339 | futex_up(&vfs_phone_futex); |
339 | futex_up(&vfs_phone_futex); |
340 | return (int) rc; |
340 | return (int) rc; |
341 | } |
341 | } |
342 | 342 | ||
343 | DIR *opendir(const char *dirname) |
343 | DIR *opendir(const char *dirname) |
344 | { |
344 | { |
345 | DIR *dirp = malloc(sizeof(DIR)); |
345 | DIR *dirp = malloc(sizeof(DIR)); |
346 | if (!dirp) |
346 | if (!dirp) |
347 | return NULL; |
347 | return NULL; |
348 | dirp->fd = _open(dirname, L_DIRECTORY, 0); |
348 | dirp->fd = _open(dirname, L_DIRECTORY, 0); |
349 | if (dirp->fd < 0) { |
349 | if (dirp->fd < 0) { |
350 | free(dirp); |
350 | free(dirp); |
351 | return NULL; |
351 | return NULL; |
352 | } |
352 | } |
353 | return dirp; |
353 | return dirp; |
354 | } |
354 | } |
355 | 355 | ||
356 | struct dirent *readdir(DIR *dirp) |
356 | struct dirent *readdir(DIR *dirp) |
357 | { |
357 | { |
358 | ssize_t len = read(dirp->fd, &dirp->res.d_name[0], NAME_MAX + 1); |
358 | ssize_t len = read(dirp->fd, &dirp->res.d_name[0], NAME_MAX + 1); |
359 | if (len <= 0) |
359 | if (len <= 0) |
360 | return NULL; |
360 | return NULL; |
361 | return &dirp->res; |
361 | return &dirp->res; |
362 | } |
362 | } |
363 | 363 | ||
364 | void rewinddir(DIR *dirp) |
364 | void rewinddir(DIR *dirp) |
365 | { |
365 | { |
366 | (void) lseek(dirp->fd, 0, SEEK_SET); |
366 | (void) lseek(dirp->fd, 0, SEEK_SET); |
367 | } |
367 | } |
368 | 368 | ||
369 | int closedir(DIR *dirp) |
369 | int closedir(DIR *dirp) |
370 | { |
370 | { |
371 | (void) close(dirp->fd); |
371 | (void) close(dirp->fd); |
372 | free(dirp); |
372 | free(dirp); |
373 | return 0; |
373 | return 0; |
374 | } |
374 | } |
375 | 375 | ||
376 | int mkdir(const char *path, mode_t mode) |
376 | int mkdir(const char *path, mode_t mode) |
377 | { |
377 | { |
378 | int res; |
378 | int res; |
379 | ipcarg_t rc; |
379 | ipcarg_t rc; |
380 | aid_t req; |
380 | aid_t req; |
381 | 381 | ||
382 | char *pa = absolutize(path); |
382 | char *pa = absolutize(path); |
383 | if (!pa) |
383 | if (!pa) |
384 | return ENOMEM; |
384 | return ENOMEM; |
385 | size_t pc_len; |
385 | size_t pc_len; |
386 | char *pc = canonify(pa, &pc_len); |
386 | char *pc = canonify(pa, &pc_len); |
387 | if (!pc) { |
387 | if (!pc) { |
388 | free(pa); |
388 | free(pa); |
389 | return EINVAL; |
389 | return EINVAL; |
390 | } |
390 | } |
391 | 391 | ||
392 | futex_down(&vfs_phone_futex); |
392 | futex_down(&vfs_phone_futex); |
393 | async_serialize_start(); |
393 | async_serialize_start(); |
394 | if (vfs_phone < 0) { |
394 | if (vfs_phone < 0) { |
395 | res = vfs_connect(); |
395 | res = vfs_connect(); |
396 | if (res < 0) { |
396 | if (res < 0) { |
397 | async_serialize_end(); |
397 | async_serialize_end(); |
398 | futex_up(&vfs_phone_futex); |
398 | futex_up(&vfs_phone_futex); |
399 | free(pa); |
399 | free(pa); |
400 | return res; |
400 | return res; |
401 | } |
401 | } |
402 | } |
402 | } |
403 | req = async_send_1(vfs_phone, VFS_MKDIR, mode, NULL); |
403 | req = async_send_1(vfs_phone, VFS_MKDIR, mode, NULL); |
404 | rc = ipc_data_write_start(vfs_phone, pc, pc_len); |
404 | rc = ipc_data_write_start(vfs_phone, pc, pc_len); |
405 | if (rc != EOK) { |
405 | if (rc != EOK) { |
406 | async_wait_for(req, NULL); |
406 | async_wait_for(req, NULL); |
407 | async_serialize_end(); |
407 | async_serialize_end(); |
408 | futex_up(&vfs_phone_futex); |
408 | futex_up(&vfs_phone_futex); |
409 | free(pa); |
409 | free(pa); |
410 | return (int) rc; |
410 | return (int) rc; |
411 | } |
411 | } |
412 | async_wait_for(req, &rc); |
412 | async_wait_for(req, &rc); |
413 | async_serialize_end(); |
413 | async_serialize_end(); |
414 | futex_up(&vfs_phone_futex); |
414 | futex_up(&vfs_phone_futex); |
415 | free(pa); |
415 | free(pa); |
416 | return rc; |
416 | return rc; |
417 | } |
417 | } |
418 | 418 | ||
419 | static int _unlink(const char *path, int lflag) |
419 | static int _unlink(const char *path, int lflag) |
420 | { |
420 | { |
421 | int res; |
421 | int res; |
422 | ipcarg_t rc; |
422 | ipcarg_t rc; |
423 | aid_t req; |
423 | aid_t req; |
424 | 424 | ||
425 | char *pa = absolutize(path); |
425 | char *pa = absolutize(path); |
426 | if (!pa) |
426 | if (!pa) |
427 | return ENOMEM; |
427 | return ENOMEM; |
428 | size_t pc_len; |
428 | size_t pc_len; |
429 | char *pc = canonify(pa, &pc_len); |
429 | char *pc = canonify(pa, &pc_len); |
430 | if (!pc) { |
430 | if (!pc) { |
431 | free(pa); |
431 | free(pa); |
432 | return EINVAL; |
432 | return EINVAL; |
433 | } |
433 | } |
434 | futex_down(&vfs_phone_futex); |
434 | futex_down(&vfs_phone_futex); |
435 | async_serialize_start(); |
435 | async_serialize_start(); |
436 | if (vfs_phone < 0) { |
436 | if (vfs_phone < 0) { |
437 | res = vfs_connect(); |
437 | res = vfs_connect(); |
438 | if (res < 0) { |
438 | if (res < 0) { |
439 | async_serialize_end(); |
439 | async_serialize_end(); |
440 | futex_up(&vfs_phone_futex); |
440 | futex_up(&vfs_phone_futex); |
441 | free(pa); |
441 | free(pa); |
442 | return res; |
442 | return res; |
443 | } |
443 | } |
444 | } |
444 | } |
445 | req = async_send_0(vfs_phone, VFS_UNLINK, NULL); |
445 | req = async_send_0(vfs_phone, VFS_UNLINK, NULL); |
446 | rc = ipc_data_write_start(vfs_phone, pc, pc_len); |
446 | rc = ipc_data_write_start(vfs_phone, pc, pc_len); |
447 | if (rc != EOK) { |
447 | if (rc != EOK) { |
448 | async_wait_for(req, NULL); |
448 | async_wait_for(req, NULL); |
449 | async_serialize_end(); |
449 | async_serialize_end(); |
450 | futex_up(&vfs_phone_futex); |
450 | futex_up(&vfs_phone_futex); |
451 | free(pa); |
451 | free(pa); |
452 | return (int) rc; |
452 | return (int) rc; |
453 | } |
453 | } |
454 | async_wait_for(req, &rc); |
454 | async_wait_for(req, &rc); |
455 | async_serialize_end(); |
455 | async_serialize_end(); |
456 | futex_up(&vfs_phone_futex); |
456 | futex_up(&vfs_phone_futex); |
457 | free(pa); |
457 | free(pa); |
458 | return rc; |
458 | return rc; |
459 | } |
459 | } |
460 | 460 | ||
461 | int unlink(const char *path) |
461 | int unlink(const char *path) |
462 | { |
462 | { |
463 | return _unlink(path, L_NONE); |
463 | return _unlink(path, L_NONE); |
464 | } |
464 | } |
465 | 465 | ||
466 | int rmdir(const char *path) |
466 | int rmdir(const char *path) |
467 | { |
467 | { |
468 | return _unlink(path, L_DIRECTORY); |
468 | return _unlink(path, L_DIRECTORY); |
469 | } |
469 | } |
470 | 470 | ||
- | 471 | int rename(const char *old, const char *new) |
|
- | 472 | { |
|
- | 473 | int res; |
|
- | 474 | ipcarg_t rc; |
|
- | 475 | aid_t req; |
|
- | 476 | ||
- | 477 | char *olda = absolutize(old); |
|
- | 478 | if (!olda) |
|
- | 479 | return ENOMEM; |
|
- | 480 | size_t oldc_len; |
|
- | 481 | char *oldc = canonify(olda, &oldc_len); |
|
- | 482 | if (!oldc) { |
|
- | 483 | free(olda); |
|
- | 484 | return EINVAL; |
|
- | 485 | } |
|
- | 486 | char *newa = absolutize(new); |
|
- | 487 | if (!newa) { |
|
- | 488 | free(olda); |
|
- | 489 | return ENOMEM; |
|
- | 490 | } |
|
- | 491 | size_t newc_len; |
|
- | 492 | char *newc = canonify(newa, &newc_len); |
|
- | 493 | if (!newc) { |
|
- | 494 | free(olda); |
|
- | 495 | free(newa); |
|
- | 496 | return EINVAL; |
|
- | 497 | } |
|
- | 498 | ||
- | 499 | futex_down(&vfs_phone_futex); |
|
- | 500 | async_serialize_start(); |
|
- | 501 | if (vfs_phone < 0) { |
|
- | 502 | res = vfs_connect(); |
|
- | 503 | if (res < 0) { |
|
- | 504 | async_serialize_end(); |
|
- | 505 | futex_up(&vfs_phone_futex); |
|
- | 506 | free(olda); |
|
- | 507 | free(newa); |
|
- | 508 | return res; |
|
- | 509 | } |
|
- | 510 | } |
|
- | 511 | req = async_send_0(vfs_phone, VFS_RENAME, NULL); |
|
- | 512 | rc = ipc_data_write_start(vfs_phone, oldc, oldc_len); |
|
- | 513 | if (rc != EOK) { |
|
- | 514 | async_wait_for(req, NULL); |
|
- | 515 | async_serialize_end(); |
|
- | 516 | futex_up(&vfs_phone_futex); |
|
- | 517 | free(olda); |
|
- | 518 | free(newa); |
|
- | 519 | return (int) rc; |
|
- | 520 | } |
|
- | 521 | rc = ipc_data_write_start(vfs_phone, newc, newc_len); |
|
- | 522 | if (rc != EOK) { |
|
- | 523 | async_wait_for(req, NULL); |
|
- | 524 | async_serialize_end(); |
|
- | 525 | futex_up(&vfs_phone_futex); |
|
- | 526 | free(olda); |
|
- | 527 | free(newa); |
|
- | 528 | return (int) rc; |
|
- | 529 | } |
|
- | 530 | async_wait_for(req, &rc); |
|
- | 531 | async_serialize_end(); |
|
- | 532 | futex_up(&vfs_phone_futex); |
|
- | 533 | free(olda); |
|
- | 534 | free(newa); |
|
- | 535 | return rc; |
|
- | 536 | } |
|
- | 537 | ||
471 | int chdir(const char *path) |
538 | int chdir(const char *path) |
472 | { |
539 | { |
473 | char *pa = absolutize(path); |
540 | char *pa = absolutize(path); |
474 | if (!pa) |
541 | if (!pa) |
475 | return ENOMEM; |
542 | return ENOMEM; |
476 | size_t pc_len; |
543 | size_t pc_len; |
477 | char *pc = canonify(pa, &pc_len); |
544 | char *pc = canonify(pa, &pc_len); |
478 | if (!pc) { |
545 | if (!pc) { |
479 | free(pa); |
546 | free(pa); |
480 | return ENOENT; |
547 | return ENOENT; |
481 | } |
548 | } |
482 | 549 | ||
483 | DIR *d = opendir(pc); |
550 | DIR *d = opendir(pc); |
484 | if (!d) { |
551 | if (!d) { |
485 | free(pa); |
552 | free(pa); |
486 | return ENOENT; |
553 | return ENOENT; |
487 | } |
554 | } |
488 | 555 | ||
489 | futex_down(&cwd_futex); |
556 | futex_down(&cwd_futex); |
490 | if (cwd_dir) { |
557 | if (cwd_dir) { |
491 | closedir(cwd_dir); |
558 | closedir(cwd_dir); |
492 | cwd_dir = NULL; |
559 | cwd_dir = NULL; |
493 | free(cwd_path); |
560 | free(cwd_path); |
494 | cwd_path = NULL; |
561 | cwd_path = NULL; |
495 | cwd_len = 0; |
562 | cwd_len = 0; |
496 | } |
563 | } |
497 | cwd_dir = d; |
564 | cwd_dir = d; |
498 | cwd_path = pc; |
565 | cwd_path = pc; |
499 | cwd_len = pc_len; |
566 | cwd_len = pc_len; |
500 | futex_up(&cwd_futex); |
567 | futex_up(&cwd_futex); |
501 | } |
568 | } |
502 | 569 | ||
503 | char *getcwd(char *buf, size_t size) |
570 | char *getcwd(char *buf, size_t size) |
504 | { |
571 | { |
505 | if (!size) |
572 | if (!size) |
506 | return NULL; |
573 | return NULL; |
507 | futex_down(&cwd_futex); |
574 | futex_down(&cwd_futex); |
508 | if (size < cwd_len + 1) { |
575 | if (size < cwd_len + 1) { |
509 | futex_up(&cwd_futex); |
576 | futex_up(&cwd_futex); |
510 | return NULL; |
577 | return NULL; |
511 | } |
578 | } |
512 | strcpy(buf, cwd_path); |
579 | strcpy(buf, cwd_path); |
513 | futex_up(&cwd_futex); |
580 | futex_up(&cwd_futex); |
514 | return buf; |
581 | return buf; |
515 | } |
582 | } |
516 | 583 | ||
517 | /** @} |
584 | /** @} |
518 | */ |
585 | */ |
519 | 586 |