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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 <stdio.h> |
42 | #include <stdio.h> |
43 | #include <sys/types.h> |
43 | #include <sys/types.h> |
44 | #include <ipc/ipc.h> |
44 | #include <ipc/ipc.h> |
45 | #include <ipc/services.h> |
45 | #include <ipc/services.h> |
46 | #include <async.h> |
46 | #include <async.h> |
47 | #include <atomic.h> |
47 | #include <atomic.h> |
48 | #include <futex.h> |
48 | #include <futex.h> |
49 | #include <errno.h> |
49 | #include <errno.h> |
50 | #include <string.h> |
50 | #include <string.h> |
- | 51 | #include <ipc/devmap.h> |
|
51 | #include "../../srv/vfs/vfs.h" |
52 | #include "../../srv/vfs/vfs.h" |
52 | 53 | ||
53 | int vfs_phone = -1; |
54 | int vfs_phone = -1; |
54 | futex_t vfs_phone_futex = FUTEX_INITIALIZER; |
55 | futex_t vfs_phone_futex = FUTEX_INITIALIZER; |
55 | 56 | ||
56 | futex_t cwd_futex = FUTEX_INITIALIZER; |
57 | futex_t cwd_futex = FUTEX_INITIALIZER; |
57 | DIR *cwd_dir = NULL; |
58 | DIR *cwd_dir = NULL; |
58 | char *cwd_path = NULL; |
59 | char *cwd_path = NULL; |
59 | size_t cwd_len = 0; |
60 | size_t cwd_len = 0; |
60 | 61 | ||
61 | static char *absolutize(const char *path, size_t *retlen) |
62 | static char *absolutize(const char *path, size_t *retlen) |
62 | { |
63 | { |
63 | char *ncwd_path; |
64 | char *ncwd_path; |
64 | 65 | ||
65 | futex_down(&cwd_futex); |
66 | futex_down(&cwd_futex); |
66 | size_t len = strlen(path); |
67 | size_t len = strlen(path); |
67 | if (*path != '/') { |
68 | if (*path != '/') { |
68 | if (!cwd_path) { |
69 | if (!cwd_path) { |
69 | futex_up(&cwd_futex); |
70 | futex_up(&cwd_futex); |
70 | return NULL; |
71 | return NULL; |
71 | } |
72 | } |
72 | ncwd_path = malloc(len + cwd_len + 1); |
73 | ncwd_path = malloc(len + cwd_len + 1); |
73 | if (!ncwd_path) { |
74 | if (!ncwd_path) { |
74 | futex_up(&cwd_futex); |
75 | futex_up(&cwd_futex); |
75 | return NULL; |
76 | return NULL; |
76 | } |
77 | } |
77 | strcpy(ncwd_path, cwd_path); |
78 | strcpy(ncwd_path, cwd_path); |
78 | ncwd_path[cwd_len] = '/'; |
79 | ncwd_path[cwd_len] = '/'; |
79 | ncwd_path[cwd_len + 1] = '\0'; |
80 | ncwd_path[cwd_len + 1] = '\0'; |
80 | } else { |
81 | } else { |
81 | ncwd_path = malloc(len + 1); |
82 | ncwd_path = malloc(len + 1); |
82 | if (!ncwd_path) { |
83 | if (!ncwd_path) { |
83 | futex_up(&cwd_futex); |
84 | futex_up(&cwd_futex); |
84 | return NULL; |
85 | return NULL; |
85 | } |
86 | } |
86 | ncwd_path[0] = '\0'; |
87 | ncwd_path[0] = '\0'; |
87 | } |
88 | } |
88 | strcat(ncwd_path, path); |
89 | strcat(ncwd_path, path); |
89 | if (!canonify(ncwd_path, retlen)) { |
90 | if (!canonify(ncwd_path, retlen)) { |
90 | futex_up(&cwd_futex); |
91 | futex_up(&cwd_futex); |
91 | free(ncwd_path); |
92 | free(ncwd_path); |
92 | return NULL; |
93 | return NULL; |
93 | } |
94 | } |
94 | futex_up(&cwd_futex); |
95 | futex_up(&cwd_futex); |
95 | return ncwd_path; |
96 | return ncwd_path; |
96 | } |
97 | } |
97 | 98 | ||
98 | static int vfs_connect(void) |
99 | static int vfs_connect(void) |
99 | { |
100 | { |
100 | if (vfs_phone < 0) |
101 | if (vfs_phone < 0) |
101 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0); |
102 | vfs_phone = ipc_connect_me_to(PHONE_NS, SERVICE_VFS, 0, 0); |
102 | return vfs_phone; |
103 | return vfs_phone; |
103 | } |
104 | } |
104 | 105 | ||
- | 106 | static int device_get_handle(char *name, dev_handle_t *handle) |
|
- | 107 | { |
|
- | 108 | int phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, 0); |
|
- | 109 | if (phone < 0) |
|
- | 110 | return phone; |
|
- | 111 | ||
- | 112 | ipc_call_t answer; |
|
- | 113 | aid_t req = async_send_2(phone, DEVMAP_DEVICE_GET_HANDLE, 0, 0, |
|
- | 114 | &answer); |
|
- | 115 | ||
- | 116 | ipcarg_t retval = ipc_data_write_start(phone, name, strlen(name) + 1); |
|
- | 117 | ||
- | 118 | if (retval != EOK) { |
|
- | 119 | async_wait_for(req, NULL); |
|
- | 120 | ipc_hangup(phone); |
|
- | 121 | return retval; |
|
- | 122 | } |
|
- | 123 | ||
- | 124 | async_wait_for(req, &retval); |
|
- | 125 | ||
- | 126 | if (handle != NULL) |
|
- | 127 | *handle = -1; |
|
- | 128 | ||
- | 129 | if (retval == EOK) { |
|
- | 130 | if (handle != NULL) |
|
- | 131 | *handle = (dev_handle_t) IPC_GET_ARG1(answer); |
|
- | 132 | } |
|
- | 133 | ||
- | 134 | ipc_hangup(phone); |
|
- | 135 | return retval; |
|
- | 136 | } |
|
- | 137 | ||
105 | int mount(const char *fs_name, const char *mp, const char *dev) |
138 | int mount(const char *fs_name, const char *mp, const char *dev) |
106 | { |
139 | { |
107 | int res; |
140 | int res; |
108 | ipcarg_t rc; |
141 | ipcarg_t rc; |
109 | aid_t req; |
142 | aid_t req; |
- | 143 | dev_handle_t dev_handle; |
|
110 | 144 | ||
111 | dev_handle_t dev_handle = 0; /* TODO */ |
145 | res = device_get_handle(dev, &dev_handle); |
- | 146 | if (res != EOK) |
|
- | 147 | return res; |
|
112 | 148 | ||
113 | size_t mpa_len; |
149 | size_t mpa_len; |
114 | char *mpa = absolutize(mp, &mpa_len); |
150 | char *mpa = absolutize(mp, &mpa_len); |
115 | if (!mpa) |
151 | if (!mpa) |
116 | return ENOMEM; |
152 | return ENOMEM; |
117 | 153 | ||
118 | futex_down(&vfs_phone_futex); |
154 | futex_down(&vfs_phone_futex); |
119 | async_serialize_start(); |
155 | async_serialize_start(); |
120 | if (vfs_phone < 0) { |
156 | if (vfs_phone < 0) { |
121 | res = vfs_connect(); |
157 | res = vfs_connect(); |
122 | if (res < 0) { |
158 | if (res < 0) { |
123 | async_serialize_end(); |
159 | async_serialize_end(); |
124 | futex_up(&vfs_phone_futex); |
160 | futex_up(&vfs_phone_futex); |
125 | free(mpa); |
161 | free(mpa); |
126 | return res; |
162 | return res; |
127 | } |
163 | } |
128 | } |
164 | } |
129 | req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL); |
165 | req = async_send_1(vfs_phone, VFS_MOUNT, dev_handle, NULL); |
130 | rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name)); |
166 | rc = ipc_data_write_start(vfs_phone, (void *)fs_name, strlen(fs_name)); |
131 | if (rc != EOK) { |
167 | if (rc != EOK) { |
132 | async_wait_for(req, NULL); |
168 | async_wait_for(req, NULL); |
133 | async_serialize_end(); |
169 | async_serialize_end(); |
134 | futex_up(&vfs_phone_futex); |
170 | futex_up(&vfs_phone_futex); |
135 | free(mpa); |
171 | free(mpa); |
136 | return (int) rc; |
172 | return (int) rc; |
137 | } |
173 | } |
138 | rc = ipc_data_write_start(vfs_phone, (void *)mpa, mpa_len); |
174 | rc = ipc_data_write_start(vfs_phone, (void *)mpa, mpa_len); |
139 | if (rc != EOK) { |
175 | if (rc != EOK) { |
140 | async_wait_for(req, NULL); |
176 | async_wait_for(req, NULL); |
141 | async_serialize_end(); |
177 | async_serialize_end(); |
142 | futex_up(&vfs_phone_futex); |
178 | futex_up(&vfs_phone_futex); |
143 | free(mpa); |
179 | free(mpa); |
144 | return (int) rc; |
180 | return (int) rc; |
145 | } |
181 | } |
146 | async_wait_for(req, &rc); |
182 | async_wait_for(req, &rc); |
147 | async_serialize_end(); |
183 | async_serialize_end(); |
148 | futex_up(&vfs_phone_futex); |
184 | futex_up(&vfs_phone_futex); |
149 | free(mpa); |
185 | free(mpa); |
150 | return (int) rc; |
186 | return (int) rc; |
151 | } |
187 | } |
152 | 188 | ||
153 | static int _open(const char *path, int lflag, int oflag, ...) |
189 | static int _open(const char *path, int lflag, int oflag, ...) |
154 | { |
190 | { |
155 | int res; |
191 | int res; |
156 | ipcarg_t rc; |
192 | ipcarg_t rc; |
157 | ipc_call_t answer; |
193 | ipc_call_t answer; |
158 | aid_t req; |
194 | aid_t req; |
159 | 195 | ||
160 | size_t pa_len; |
196 | size_t pa_len; |
161 | char *pa = absolutize(path, &pa_len); |
197 | char *pa = absolutize(path, &pa_len); |
162 | if (!pa) |
198 | if (!pa) |
163 | return ENOMEM; |
199 | return ENOMEM; |
164 | 200 | ||
165 | futex_down(&vfs_phone_futex); |
201 | futex_down(&vfs_phone_futex); |
166 | async_serialize_start(); |
202 | async_serialize_start(); |
167 | if (vfs_phone < 0) { |
203 | if (vfs_phone < 0) { |
168 | res = vfs_connect(); |
204 | res = vfs_connect(); |
169 | if (res < 0) { |
205 | if (res < 0) { |
170 | async_serialize_end(); |
206 | async_serialize_end(); |
171 | futex_up(&vfs_phone_futex); |
207 | futex_up(&vfs_phone_futex); |
172 | free(pa); |
208 | free(pa); |
173 | return res; |
209 | return res; |
174 | } |
210 | } |
175 | } |
211 | } |
176 | req = async_send_3(vfs_phone, VFS_OPEN, lflag, oflag, 0, &answer); |
212 | req = async_send_3(vfs_phone, VFS_OPEN, lflag, oflag, 0, &answer); |
177 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
213 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
178 | if (rc != EOK) { |
214 | if (rc != EOK) { |
179 | async_wait_for(req, NULL); |
215 | async_wait_for(req, NULL); |
180 | async_serialize_end(); |
216 | async_serialize_end(); |
181 | futex_up(&vfs_phone_futex); |
217 | futex_up(&vfs_phone_futex); |
182 | free(pa); |
218 | free(pa); |
183 | return (int) rc; |
219 | return (int) rc; |
184 | } |
220 | } |
185 | async_wait_for(req, &rc); |
221 | async_wait_for(req, &rc); |
186 | async_serialize_end(); |
222 | async_serialize_end(); |
187 | futex_up(&vfs_phone_futex); |
223 | futex_up(&vfs_phone_futex); |
188 | free(pa); |
224 | free(pa); |
189 | return (int) IPC_GET_ARG1(answer); |
225 | return (int) IPC_GET_ARG1(answer); |
190 | } |
226 | } |
191 | 227 | ||
192 | int open(const char *path, int oflag, ...) |
228 | int open(const char *path, int oflag, ...) |
193 | { |
229 | { |
194 | return _open(path, L_FILE, oflag); |
230 | return _open(path, L_FILE, oflag); |
195 | } |
231 | } |
196 | 232 | ||
197 | int close(int fildes) |
233 | int close(int fildes) |
198 | { |
234 | { |
199 | int res; |
235 | int res; |
200 | ipcarg_t rc; |
236 | ipcarg_t rc; |
201 | 237 | ||
202 | futex_down(&vfs_phone_futex); |
238 | futex_down(&vfs_phone_futex); |
203 | async_serialize_start(); |
239 | async_serialize_start(); |
204 | if (vfs_phone < 0) { |
240 | if (vfs_phone < 0) { |
205 | res = vfs_connect(); |
241 | res = vfs_connect(); |
206 | if (res < 0) { |
242 | if (res < 0) { |
207 | async_serialize_end(); |
243 | async_serialize_end(); |
208 | futex_up(&vfs_phone_futex); |
244 | futex_up(&vfs_phone_futex); |
209 | return res; |
245 | return res; |
210 | } |
246 | } |
211 | } |
247 | } |
212 | 248 | ||
213 | rc = async_req_1_0(vfs_phone, VFS_CLOSE, fildes); |
249 | rc = async_req_1_0(vfs_phone, VFS_CLOSE, fildes); |
214 | 250 | ||
215 | async_serialize_end(); |
251 | async_serialize_end(); |
216 | futex_up(&vfs_phone_futex); |
252 | futex_up(&vfs_phone_futex); |
217 | 253 | ||
218 | return (int)rc; |
254 | return (int)rc; |
219 | } |
255 | } |
220 | 256 | ||
221 | ssize_t read(int fildes, void *buf, size_t nbyte) |
257 | ssize_t read(int fildes, void *buf, size_t nbyte) |
222 | { |
258 | { |
223 | int res; |
259 | int res; |
224 | ipcarg_t rc; |
260 | ipcarg_t rc; |
225 | ipc_call_t answer; |
261 | ipc_call_t answer; |
226 | aid_t req; |
262 | aid_t req; |
227 | 263 | ||
228 | futex_down(&vfs_phone_futex); |
264 | futex_down(&vfs_phone_futex); |
229 | async_serialize_start(); |
265 | async_serialize_start(); |
230 | if (vfs_phone < 0) { |
266 | if (vfs_phone < 0) { |
231 | res = vfs_connect(); |
267 | res = vfs_connect(); |
232 | if (res < 0) { |
268 | if (res < 0) { |
233 | async_serialize_end(); |
269 | async_serialize_end(); |
234 | futex_up(&vfs_phone_futex); |
270 | futex_up(&vfs_phone_futex); |
235 | return res; |
271 | return res; |
236 | } |
272 | } |
237 | } |
273 | } |
238 | req = async_send_1(vfs_phone, VFS_READ, fildes, &answer); |
274 | req = async_send_1(vfs_phone, VFS_READ, fildes, &answer); |
239 | rc = ipc_data_read_start(vfs_phone, (void *)buf, nbyte); |
275 | rc = ipc_data_read_start(vfs_phone, (void *)buf, nbyte); |
240 | if (rc != EOK) { |
276 | if (rc != EOK) { |
241 | async_wait_for(req, NULL); |
277 | async_wait_for(req, NULL); |
242 | async_serialize_end(); |
278 | async_serialize_end(); |
243 | futex_up(&vfs_phone_futex); |
279 | futex_up(&vfs_phone_futex); |
244 | return (ssize_t) rc; |
280 | return (ssize_t) rc; |
245 | } |
281 | } |
246 | async_wait_for(req, &rc); |
282 | async_wait_for(req, &rc); |
247 | async_serialize_end(); |
283 | async_serialize_end(); |
248 | futex_up(&vfs_phone_futex); |
284 | futex_up(&vfs_phone_futex); |
249 | if (rc == EOK) |
285 | if (rc == EOK) |
250 | return (ssize_t) IPC_GET_ARG1(answer); |
286 | return (ssize_t) IPC_GET_ARG1(answer); |
251 | else |
287 | else |
252 | return -1; |
288 | return -1; |
253 | } |
289 | } |
254 | 290 | ||
255 | ssize_t write(int fildes, const void *buf, size_t nbyte) |
291 | ssize_t write(int fildes, const void *buf, size_t nbyte) |
256 | { |
292 | { |
257 | int res; |
293 | int res; |
258 | ipcarg_t rc; |
294 | ipcarg_t rc; |
259 | ipc_call_t answer; |
295 | ipc_call_t answer; |
260 | aid_t req; |
296 | aid_t req; |
261 | 297 | ||
262 | futex_down(&vfs_phone_futex); |
298 | futex_down(&vfs_phone_futex); |
263 | async_serialize_start(); |
299 | async_serialize_start(); |
264 | if (vfs_phone < 0) { |
300 | if (vfs_phone < 0) { |
265 | res = vfs_connect(); |
301 | res = vfs_connect(); |
266 | if (res < 0) { |
302 | if (res < 0) { |
267 | async_serialize_end(); |
303 | async_serialize_end(); |
268 | futex_up(&vfs_phone_futex); |
304 | futex_up(&vfs_phone_futex); |
269 | return res; |
305 | return res; |
270 | } |
306 | } |
271 | } |
307 | } |
272 | req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer); |
308 | req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer); |
273 | rc = ipc_data_write_start(vfs_phone, (void *)buf, nbyte); |
309 | rc = ipc_data_write_start(vfs_phone, (void *)buf, nbyte); |
274 | if (rc != EOK) { |
310 | if (rc != EOK) { |
275 | async_wait_for(req, NULL); |
311 | async_wait_for(req, NULL); |
276 | async_serialize_end(); |
312 | async_serialize_end(); |
277 | futex_up(&vfs_phone_futex); |
313 | futex_up(&vfs_phone_futex); |
278 | return (ssize_t) rc; |
314 | return (ssize_t) rc; |
279 | } |
315 | } |
280 | async_wait_for(req, &rc); |
316 | async_wait_for(req, &rc); |
281 | async_serialize_end(); |
317 | async_serialize_end(); |
282 | futex_up(&vfs_phone_futex); |
318 | futex_up(&vfs_phone_futex); |
283 | if (rc == EOK) |
319 | if (rc == EOK) |
284 | return (ssize_t) IPC_GET_ARG1(answer); |
320 | return (ssize_t) IPC_GET_ARG1(answer); |
285 | else |
321 | else |
286 | return -1; |
322 | return -1; |
287 | } |
323 | } |
288 | 324 | ||
289 | off_t lseek(int fildes, off_t offset, int whence) |
325 | off_t lseek(int fildes, off_t offset, int whence) |
290 | { |
326 | { |
291 | int res; |
327 | int res; |
292 | ipcarg_t rc; |
328 | ipcarg_t rc; |
293 | 329 | ||
294 | futex_down(&vfs_phone_futex); |
330 | futex_down(&vfs_phone_futex); |
295 | async_serialize_start(); |
331 | async_serialize_start(); |
296 | if (vfs_phone < 0) { |
332 | if (vfs_phone < 0) { |
297 | res = vfs_connect(); |
333 | res = vfs_connect(); |
298 | if (res < 0) { |
334 | if (res < 0) { |
299 | async_serialize_end(); |
335 | async_serialize_end(); |
300 | futex_up(&vfs_phone_futex); |
336 | futex_up(&vfs_phone_futex); |
301 | return res; |
337 | return res; |
302 | } |
338 | } |
303 | } |
339 | } |
304 | 340 | ||
305 | off_t newoffs; |
341 | off_t newoffs; |
306 | rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence, |
342 | rc = async_req_3_1(vfs_phone, VFS_SEEK, fildes, offset, whence, |
307 | (ipcarg_t)&newoffs); |
343 | (ipcarg_t)&newoffs); |
308 | 344 | ||
309 | async_serialize_end(); |
345 | async_serialize_end(); |
310 | futex_up(&vfs_phone_futex); |
346 | futex_up(&vfs_phone_futex); |
311 | 347 | ||
312 | if (rc != EOK) |
348 | if (rc != EOK) |
313 | return (off_t) -1; |
349 | return (off_t) -1; |
314 | 350 | ||
315 | return newoffs; |
351 | return newoffs; |
316 | } |
352 | } |
317 | 353 | ||
318 | int ftruncate(int fildes, off_t length) |
354 | int ftruncate(int fildes, off_t length) |
319 | { |
355 | { |
320 | int res; |
356 | int res; |
321 | ipcarg_t rc; |
357 | ipcarg_t rc; |
322 | 358 | ||
323 | futex_down(&vfs_phone_futex); |
359 | futex_down(&vfs_phone_futex); |
324 | async_serialize_start(); |
360 | async_serialize_start(); |
325 | if (vfs_phone < 0) { |
361 | if (vfs_phone < 0) { |
326 | res = vfs_connect(); |
362 | res = vfs_connect(); |
327 | if (res < 0) { |
363 | if (res < 0) { |
328 | async_serialize_end(); |
364 | async_serialize_end(); |
329 | futex_up(&vfs_phone_futex); |
365 | futex_up(&vfs_phone_futex); |
330 | return res; |
366 | return res; |
331 | } |
367 | } |
332 | } |
368 | } |
333 | rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length); |
369 | rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length); |
334 | async_serialize_end(); |
370 | async_serialize_end(); |
335 | futex_up(&vfs_phone_futex); |
371 | futex_up(&vfs_phone_futex); |
336 | return (int) rc; |
372 | return (int) rc; |
337 | } |
373 | } |
338 | 374 | ||
339 | DIR *opendir(const char *dirname) |
375 | DIR *opendir(const char *dirname) |
340 | { |
376 | { |
341 | DIR *dirp = malloc(sizeof(DIR)); |
377 | DIR *dirp = malloc(sizeof(DIR)); |
342 | if (!dirp) |
378 | if (!dirp) |
343 | return NULL; |
379 | return NULL; |
344 | dirp->fd = _open(dirname, L_DIRECTORY, 0); |
380 | dirp->fd = _open(dirname, L_DIRECTORY, 0); |
345 | if (dirp->fd < 0) { |
381 | if (dirp->fd < 0) { |
346 | free(dirp); |
382 | free(dirp); |
347 | return NULL; |
383 | return NULL; |
348 | } |
384 | } |
349 | return dirp; |
385 | return dirp; |
350 | } |
386 | } |
351 | 387 | ||
352 | struct dirent *readdir(DIR *dirp) |
388 | struct dirent *readdir(DIR *dirp) |
353 | { |
389 | { |
354 | ssize_t len = read(dirp->fd, &dirp->res.d_name[0], NAME_MAX + 1); |
390 | ssize_t len = read(dirp->fd, &dirp->res.d_name[0], NAME_MAX + 1); |
355 | if (len <= 0) |
391 | if (len <= 0) |
356 | return NULL; |
392 | return NULL; |
357 | return &dirp->res; |
393 | return &dirp->res; |
358 | } |
394 | } |
359 | 395 | ||
360 | void rewinddir(DIR *dirp) |
396 | void rewinddir(DIR *dirp) |
361 | { |
397 | { |
362 | (void) lseek(dirp->fd, 0, SEEK_SET); |
398 | (void) lseek(dirp->fd, 0, SEEK_SET); |
363 | } |
399 | } |
364 | 400 | ||
365 | int closedir(DIR *dirp) |
401 | int closedir(DIR *dirp) |
366 | { |
402 | { |
367 | (void) close(dirp->fd); |
403 | (void) close(dirp->fd); |
368 | free(dirp); |
404 | free(dirp); |
369 | return 0; |
405 | return 0; |
370 | } |
406 | } |
371 | 407 | ||
372 | int mkdir(const char *path, mode_t mode) |
408 | int mkdir(const char *path, mode_t mode) |
373 | { |
409 | { |
374 | int res; |
410 | int res; |
375 | ipcarg_t rc; |
411 | ipcarg_t rc; |
376 | aid_t req; |
412 | aid_t req; |
377 | 413 | ||
378 | size_t pa_len; |
414 | size_t pa_len; |
379 | char *pa = absolutize(path, &pa_len); |
415 | char *pa = absolutize(path, &pa_len); |
380 | if (!pa) |
416 | if (!pa) |
381 | return ENOMEM; |
417 | return ENOMEM; |
382 | 418 | ||
383 | futex_down(&vfs_phone_futex); |
419 | futex_down(&vfs_phone_futex); |
384 | async_serialize_start(); |
420 | async_serialize_start(); |
385 | if (vfs_phone < 0) { |
421 | if (vfs_phone < 0) { |
386 | res = vfs_connect(); |
422 | res = vfs_connect(); |
387 | if (res < 0) { |
423 | if (res < 0) { |
388 | async_serialize_end(); |
424 | async_serialize_end(); |
389 | futex_up(&vfs_phone_futex); |
425 | futex_up(&vfs_phone_futex); |
390 | free(pa); |
426 | free(pa); |
391 | return res; |
427 | return res; |
392 | } |
428 | } |
393 | } |
429 | } |
394 | req = async_send_1(vfs_phone, VFS_MKDIR, mode, NULL); |
430 | req = async_send_1(vfs_phone, VFS_MKDIR, mode, NULL); |
395 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
431 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
396 | if (rc != EOK) { |
432 | if (rc != EOK) { |
397 | async_wait_for(req, NULL); |
433 | async_wait_for(req, NULL); |
398 | async_serialize_end(); |
434 | async_serialize_end(); |
399 | futex_up(&vfs_phone_futex); |
435 | futex_up(&vfs_phone_futex); |
400 | free(pa); |
436 | free(pa); |
401 | return (int) rc; |
437 | return (int) rc; |
402 | } |
438 | } |
403 | async_wait_for(req, &rc); |
439 | async_wait_for(req, &rc); |
404 | async_serialize_end(); |
440 | async_serialize_end(); |
405 | futex_up(&vfs_phone_futex); |
441 | futex_up(&vfs_phone_futex); |
406 | free(pa); |
442 | free(pa); |
407 | return rc; |
443 | return rc; |
408 | } |
444 | } |
409 | 445 | ||
410 | static int _unlink(const char *path, int lflag) |
446 | static int _unlink(const char *path, int lflag) |
411 | { |
447 | { |
412 | int res; |
448 | int res; |
413 | ipcarg_t rc; |
449 | ipcarg_t rc; |
414 | aid_t req; |
450 | aid_t req; |
415 | 451 | ||
416 | size_t pa_len; |
452 | size_t pa_len; |
417 | char *pa = absolutize(path, &pa_len); |
453 | char *pa = absolutize(path, &pa_len); |
418 | if (!pa) |
454 | if (!pa) |
419 | return ENOMEM; |
455 | return ENOMEM; |
420 | 456 | ||
421 | futex_down(&vfs_phone_futex); |
457 | futex_down(&vfs_phone_futex); |
422 | async_serialize_start(); |
458 | async_serialize_start(); |
423 | if (vfs_phone < 0) { |
459 | if (vfs_phone < 0) { |
424 | res = vfs_connect(); |
460 | res = vfs_connect(); |
425 | if (res < 0) { |
461 | if (res < 0) { |
426 | async_serialize_end(); |
462 | async_serialize_end(); |
427 | futex_up(&vfs_phone_futex); |
463 | futex_up(&vfs_phone_futex); |
428 | free(pa); |
464 | free(pa); |
429 | return res; |
465 | return res; |
430 | } |
466 | } |
431 | } |
467 | } |
432 | req = async_send_0(vfs_phone, VFS_UNLINK, NULL); |
468 | req = async_send_0(vfs_phone, VFS_UNLINK, NULL); |
433 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
469 | rc = ipc_data_write_start(vfs_phone, pa, pa_len); |
434 | if (rc != EOK) { |
470 | if (rc != EOK) { |
435 | async_wait_for(req, NULL); |
471 | async_wait_for(req, NULL); |
436 | async_serialize_end(); |
472 | async_serialize_end(); |
437 | futex_up(&vfs_phone_futex); |
473 | futex_up(&vfs_phone_futex); |
438 | free(pa); |
474 | free(pa); |
439 | return (int) rc; |
475 | return (int) rc; |
440 | } |
476 | } |
441 | async_wait_for(req, &rc); |
477 | async_wait_for(req, &rc); |
442 | async_serialize_end(); |
478 | async_serialize_end(); |
443 | futex_up(&vfs_phone_futex); |
479 | futex_up(&vfs_phone_futex); |
444 | free(pa); |
480 | free(pa); |
445 | return rc; |
481 | return rc; |
446 | } |
482 | } |
447 | 483 | ||
448 | int unlink(const char *path) |
484 | int unlink(const char *path) |
449 | { |
485 | { |
450 | return _unlink(path, L_NONE); |
486 | return _unlink(path, L_NONE); |
451 | } |
487 | } |
452 | 488 | ||
453 | int rmdir(const char *path) |
489 | int rmdir(const char *path) |
454 | { |
490 | { |
455 | return _unlink(path, L_DIRECTORY); |
491 | return _unlink(path, L_DIRECTORY); |
456 | } |
492 | } |
457 | 493 | ||
458 | int rename(const char *old, const char *new) |
494 | int rename(const char *old, const char *new) |
459 | { |
495 | { |
460 | int res; |
496 | int res; |
461 | ipcarg_t rc; |
497 | ipcarg_t rc; |
462 | aid_t req; |
498 | aid_t req; |
463 | 499 | ||
464 | size_t olda_len; |
500 | size_t olda_len; |
465 | char *olda = absolutize(old, &olda_len); |
501 | char *olda = absolutize(old, &olda_len); |
466 | if (!olda) |
502 | if (!olda) |
467 | return ENOMEM; |
503 | return ENOMEM; |
468 | 504 | ||
469 | size_t newa_len; |
505 | size_t newa_len; |
470 | char *newa = absolutize(new, &newa_len); |
506 | char *newa = absolutize(new, &newa_len); |
471 | if (!newa) { |
507 | if (!newa) { |
472 | free(olda); |
508 | free(olda); |
473 | return ENOMEM; |
509 | return ENOMEM; |
474 | } |
510 | } |
475 | 511 | ||
476 | futex_down(&vfs_phone_futex); |
512 | futex_down(&vfs_phone_futex); |
477 | async_serialize_start(); |
513 | async_serialize_start(); |
478 | if (vfs_phone < 0) { |
514 | if (vfs_phone < 0) { |
479 | res = vfs_connect(); |
515 | res = vfs_connect(); |
480 | if (res < 0) { |
516 | if (res < 0) { |
481 | async_serialize_end(); |
517 | async_serialize_end(); |
482 | futex_up(&vfs_phone_futex); |
518 | futex_up(&vfs_phone_futex); |
483 | free(olda); |
519 | free(olda); |
484 | free(newa); |
520 | free(newa); |
485 | return res; |
521 | return res; |
486 | } |
522 | } |
487 | } |
523 | } |
488 | req = async_send_0(vfs_phone, VFS_RENAME, NULL); |
524 | req = async_send_0(vfs_phone, VFS_RENAME, NULL); |
489 | rc = ipc_data_write_start(vfs_phone, olda, olda_len); |
525 | rc = ipc_data_write_start(vfs_phone, olda, olda_len); |
490 | if (rc != EOK) { |
526 | if (rc != EOK) { |
491 | async_wait_for(req, NULL); |
527 | async_wait_for(req, NULL); |
492 | async_serialize_end(); |
528 | async_serialize_end(); |
493 | futex_up(&vfs_phone_futex); |
529 | futex_up(&vfs_phone_futex); |
494 | free(olda); |
530 | free(olda); |
495 | free(newa); |
531 | free(newa); |
496 | return (int) rc; |
532 | return (int) rc; |
497 | } |
533 | } |
498 | rc = ipc_data_write_start(vfs_phone, newa, newa_len); |
534 | rc = ipc_data_write_start(vfs_phone, newa, newa_len); |
499 | if (rc != EOK) { |
535 | if (rc != EOK) { |
500 | async_wait_for(req, NULL); |
536 | async_wait_for(req, NULL); |
501 | async_serialize_end(); |
537 | async_serialize_end(); |
502 | futex_up(&vfs_phone_futex); |
538 | futex_up(&vfs_phone_futex); |
503 | free(olda); |
539 | free(olda); |
504 | free(newa); |
540 | free(newa); |
505 | return (int) rc; |
541 | return (int) rc; |
506 | } |
542 | } |
507 | async_wait_for(req, &rc); |
543 | async_wait_for(req, &rc); |
508 | async_serialize_end(); |
544 | async_serialize_end(); |
509 | futex_up(&vfs_phone_futex); |
545 | futex_up(&vfs_phone_futex); |
510 | free(olda); |
546 | free(olda); |
511 | free(newa); |
547 | free(newa); |
512 | return rc; |
548 | return rc; |
513 | } |
549 | } |
514 | 550 | ||
515 | int chdir(const char *path) |
551 | int chdir(const char *path) |
516 | { |
552 | { |
517 | size_t pa_len; |
553 | size_t pa_len; |
518 | char *pa = absolutize(path, &pa_len); |
554 | char *pa = absolutize(path, &pa_len); |
519 | if (!pa) |
555 | if (!pa) |
520 | return ENOMEM; |
556 | return ENOMEM; |
521 | 557 | ||
522 | DIR *d = opendir(pa); |
558 | DIR *d = opendir(pa); |
523 | if (!d) { |
559 | if (!d) { |
524 | free(pa); |
560 | free(pa); |
525 | return ENOENT; |
561 | return ENOENT; |
526 | } |
562 | } |
527 | 563 | ||
528 | futex_down(&cwd_futex); |
564 | futex_down(&cwd_futex); |
529 | if (cwd_dir) { |
565 | if (cwd_dir) { |
530 | closedir(cwd_dir); |
566 | closedir(cwd_dir); |
531 | cwd_dir = NULL; |
567 | cwd_dir = NULL; |
532 | free(cwd_path); |
568 | free(cwd_path); |
533 | cwd_path = NULL; |
569 | cwd_path = NULL; |
534 | cwd_len = 0; |
570 | cwd_len = 0; |
535 | } |
571 | } |
536 | cwd_dir = d; |
572 | cwd_dir = d; |
537 | cwd_path = pa; |
573 | cwd_path = pa; |
538 | cwd_len = pa_len; |
574 | cwd_len = pa_len; |
539 | futex_up(&cwd_futex); |
575 | futex_up(&cwd_futex); |
540 | } |
576 | } |
541 | 577 | ||
542 | char *getcwd(char *buf, size_t size) |
578 | char *getcwd(char *buf, size_t size) |
543 | { |
579 | { |
544 | if (!size) |
580 | if (!size) |
545 | return NULL; |
581 | return NULL; |
546 | futex_down(&cwd_futex); |
582 | futex_down(&cwd_futex); |
547 | if (size < cwd_len + 1) { |
583 | if (size < cwd_len + 1) { |
548 | futex_up(&cwd_futex); |
584 | futex_up(&cwd_futex); |
549 | return NULL; |
585 | return NULL; |
550 | } |
586 | } |
551 | strcpy(buf, cwd_path); |
587 | strcpy(buf, cwd_path); |
552 | futex_up(&cwd_futex); |
588 | futex_up(&cwd_futex); |
553 | return buf; |
589 | return buf; |
554 | } |
590 | } |
555 | 591 | ||
556 | /** @} |
592 | /** @} |
557 | */ |
593 | */ |
558 | 594 |