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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 <ipc/devmap.h> |
52 | #include "../../../srv/vfs/vfs.h" |
52 | #include "../../../srv/vfs/vfs.h" |
53 | 53 | ||
54 | int vfs_phone = -1; |
54 | int vfs_phone = -1; |
55 | futex_t vfs_phone_futex = FUTEX_INITIALIZER; |
55 | futex_t vfs_phone_futex = FUTEX_INITIALIZER; |
56 | 56 | ||
57 | futex_t cwd_futex = FUTEX_INITIALIZER; |
57 | futex_t cwd_futex = FUTEX_INITIALIZER; |
58 | DIR *cwd_dir = NULL; |
58 | DIR *cwd_dir = NULL; |
59 | char *cwd_path = NULL; |
59 | char *cwd_path = NULL; |
60 | size_t cwd_size = 0; |
60 | size_t cwd_size = 0; |
61 | 61 | ||
62 | char *absolutize(const char *path, size_t *retlen) |
62 | char *absolutize(const char *path, size_t *retlen) |
63 | { |
63 | { |
64 | char *ncwd_path; |
64 | char *ncwd_path; |
65 | char *ncwd_path_nc; |
65 | char *ncwd_path_nc; |
66 | 66 | ||
67 | futex_down(&cwd_futex); |
67 | futex_down(&cwd_futex); |
68 | size_t size = str_size(path); |
68 | size_t size = str_size(path); |
69 | if (*path != '/') { |
69 | if (*path != '/') { |
70 | if (!cwd_path) { |
70 | if (!cwd_path) { |
71 | futex_up(&cwd_futex); |
71 | futex_up(&cwd_futex); |
72 | return NULL; |
72 | return NULL; |
73 | } |
73 | } |
74 | ncwd_path_nc = malloc(cwd_size + 1 + size + 1); |
74 | ncwd_path_nc = malloc(cwd_size + 1 + size + 1); |
75 | if (!ncwd_path_nc) { |
75 | if (!ncwd_path_nc) { |
76 | futex_up(&cwd_futex); |
76 | futex_up(&cwd_futex); |
77 | return NULL; |
77 | return NULL; |
78 | } |
78 | } |
79 | str_cpy(ncwd_path_nc, cwd_size + 1 + size + 1, cwd_path); |
79 | str_cpy(ncwd_path_nc, cwd_size + 1 + size + 1, cwd_path); |
80 | ncwd_path_nc[cwd_size] = '/'; |
80 | ncwd_path_nc[cwd_size] = '/'; |
81 | ncwd_path_nc[cwd_size + 1] = '\0'; |
81 | ncwd_path_nc[cwd_size + 1] = '\0'; |
82 | } else { |
82 | } else { |
83 | ncwd_path_nc = malloc(size + 1); |
83 | ncwd_path_nc = malloc(size + 1); |
84 | if (!ncwd_path_nc) { |
84 | if (!ncwd_path_nc) { |
85 | futex_up(&cwd_futex); |
85 | futex_up(&cwd_futex); |
86 | return NULL; |
86 | return NULL; |
87 | } |
87 | } |
88 | ncwd_path_nc[0] = '\0'; |
88 | ncwd_path_nc[0] = '\0'; |
89 | } |
89 | } |
90 | str_append(ncwd_path_nc, cwd_size + 1 + size + 1, path); |
90 | str_append(ncwd_path_nc, cwd_size + 1 + size + 1, path); |
91 | ncwd_path = canonify(ncwd_path_nc, retlen); |
91 | ncwd_path = canonify(ncwd_path_nc, retlen); |
92 | if (!ncwd_path) { |
92 | if (!ncwd_path) { |
93 | futex_up(&cwd_futex); |
93 | futex_up(&cwd_futex); |
94 | free(ncwd_path_nc); |
94 | free(ncwd_path_nc); |
95 | return NULL; |
95 | return NULL; |
96 | } |
96 | } |
97 | /* |
97 | /* |
98 | * We need to clone ncwd_path because canonify() works in-place and thus |
98 | * We need to clone ncwd_path because canonify() works in-place and thus |
99 | * the address in ncwd_path need not be the same as ncwd_path_nc, even |
99 | * the address in ncwd_path need not be the same as ncwd_path_nc, even |
100 | * though they both point into the same dynamically allocated buffer. |
100 | * though they both point into the same dynamically allocated buffer. |
101 | */ |
101 | */ |
102 | ncwd_path = str_dup(ncwd_path); |
102 | ncwd_path = str_dup(ncwd_path); |
103 | free(ncwd_path_nc); |
103 | free(ncwd_path_nc); |
104 | if (!ncwd_path) { |
104 | if (!ncwd_path) { |
105 | futex_up(&cwd_futex); |
105 | futex_up(&cwd_futex); |
106 | return NULL; |
106 | return NULL; |
107 | } |
107 | } |
108 | futex_up(&cwd_futex); |
108 | futex_up(&cwd_futex); |
109 | return ncwd_path; |
109 | return ncwd_path; |
110 | } |
110 | } |
111 | 111 | ||
112 | static void vfs_connect(void) |
112 | static void vfs_connect(void) |
113 | { |
113 | { |
114 | while (vfs_phone < 0) |
114 | while (vfs_phone < 0) |
115 | vfs_phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_VFS, 0, 0); |
115 | vfs_phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_VFS, 0, 0); |
116 | } |
116 | } |
117 | 117 | ||
118 | static int device_get_handle(const char *name, dev_handle_t *handle, |
118 | static int device_get_handle(const char *name, dev_handle_t *handle, |
119 | const unsigned int flags) |
119 | const unsigned int flags) |
120 | { |
120 | { |
121 | int phone; |
121 | int phone; |
122 | 122 | ||
123 | if (flags & IPC_FLAG_BLOCKING) |
123 | if (flags & IPC_FLAG_BLOCKING) |
124 | phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, 0); |
124 | phone = ipc_connect_me_to_blocking(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, 0); |
125 | else |
125 | else |
126 | phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, 0); |
126 | phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, 0); |
127 | 127 | ||
128 | if (phone < 0) |
128 | if (phone < 0) |
129 | return phone; |
129 | return phone; |
130 | 130 | ||
131 | ipc_call_t answer; |
131 | ipc_call_t answer; |
132 | aid_t req = async_send_2(phone, DEVMAP_DEVICE_GET_HANDLE, flags, 0, |
132 | aid_t req = async_send_2(phone, DEVMAP_DEVICE_GET_HANDLE, flags, 0, |
133 | &answer); |
133 | &answer); |
134 | 134 | ||
135 | ipcarg_t retval = ipc_data_write_start(phone, name, str_size(name) + 1); |
135 | ipcarg_t retval = ipc_data_write_start(phone, name, str_size(name) + 1); |
136 | 136 | ||
137 | if (retval != EOK) { |
137 | if (retval != EOK) { |
138 | async_wait_for(req, NULL); |
138 | async_wait_for(req, NULL); |
139 | ipc_hangup(phone); |
139 | ipc_hangup(phone); |
140 | return retval; |
140 | return retval; |
141 | } |
141 | } |
142 | 142 | ||
143 | async_wait_for(req, &retval); |
143 | async_wait_for(req, &retval); |
144 | 144 | ||
145 | if (handle != NULL) |
145 | if (handle != NULL) |
146 | *handle = -1; |
146 | *handle = -1; |
147 | 147 | ||
148 | if (retval == EOK) { |
148 | if (retval == EOK) { |
149 | if (handle != NULL) |
149 | if (handle != NULL) |
150 | *handle = (dev_handle_t) IPC_GET_ARG1(answer); |
150 | *handle = (dev_handle_t) IPC_GET_ARG1(answer); |
151 | } |
151 | } |
152 | 152 | ||
153 | ipc_hangup(phone); |
153 | ipc_hangup(phone); |
154 | return retval; |
154 | return retval; |
155 | } |
155 | } |
156 | 156 | ||
157 | int mount(const char *fs_name, const char *mp, const char *dev, |
157 | int mount(const char *fs_name, const char *mp, const char *dev, |
158 | const unsigned int flags) |
158 | const char *opts, const unsigned int flags) |
159 | { |
159 | { |
160 | int res; |
160 | int res; |
161 | ipcarg_t rc; |
161 | ipcarg_t rc; |
162 | aid_t req; |
162 | aid_t req; |
163 | dev_handle_t dev_handle; |
163 | dev_handle_t dev_handle; |
164 | 164 | ||
165 | res = device_get_handle(dev, &dev_handle, flags); |
165 | res = device_get_handle(dev, &dev_handle, flags); |
166 | if (res != EOK) |
166 | if (res != EOK) |
167 | return res; |
167 | return res; |
168 | 168 | ||
169 | size_t mpa_size; |
169 | size_t mpa_size; |
170 | char *mpa = absolutize(mp, &mpa_size); |
170 | char *mpa = absolutize(mp, &mpa_size); |
171 | if (!mpa) |
171 | if (!mpa) |
172 | return ENOMEM; |
172 | return ENOMEM; |
173 | 173 | ||
174 | futex_down(&vfs_phone_futex); |
174 | futex_down(&vfs_phone_futex); |
175 | async_serialize_start(); |
175 | async_serialize_start(); |
176 | vfs_connect(); |
176 | vfs_connect(); |
177 | 177 | ||
178 | req = async_send_2(vfs_phone, VFS_MOUNT, dev_handle, flags, NULL); |
178 | req = async_send_2(vfs_phone, VFS_MOUNT, dev_handle, flags, NULL); |
179 | rc = ipc_data_write_start(vfs_phone, (void *) mpa, mpa_size); |
179 | rc = ipc_data_write_start(vfs_phone, (void *) mpa, mpa_size); |
180 | if (rc != EOK) { |
180 | if (rc != EOK) { |
181 | async_wait_for(req, NULL); |
181 | async_wait_for(req, NULL); |
182 | async_serialize_end(); |
182 | async_serialize_end(); |
183 | futex_up(&vfs_phone_futex); |
183 | futex_up(&vfs_phone_futex); |
184 | free(mpa); |
184 | free(mpa); |
185 | return (int) rc; |
185 | return (int) rc; |
186 | } |
186 | } |
187 | 187 | ||
- | 188 | rc = ipc_data_write_start(vfs_phone, (void *) opts, str_size(opts)); |
|
- | 189 | if (rc != EOK) { |
|
- | 190 | async_wait_for(req, NULL); |
|
- | 191 | async_serialize_end(); |
|
- | 192 | futex_up(&vfs_phone_futex); |
|
- | 193 | free(mpa); |
|
- | 194 | return (int) rc; |
|
- | 195 | } |
|
- | 196 | ||
188 | rc = ipc_data_write_start(vfs_phone, (void *) fs_name, str_size(fs_name)); |
197 | rc = ipc_data_write_start(vfs_phone, (void *) fs_name, str_size(fs_name)); |
189 | if (rc != EOK) { |
198 | if (rc != EOK) { |
190 | async_wait_for(req, NULL); |
199 | async_wait_for(req, NULL); |
191 | async_serialize_end(); |
200 | async_serialize_end(); |
192 | futex_up(&vfs_phone_futex); |
201 | futex_up(&vfs_phone_futex); |
193 | free(mpa); |
202 | free(mpa); |
194 | return (int) rc; |
203 | return (int) rc; |
195 | } |
204 | } |
196 | 205 | ||
197 | /* Ask VFS whether it likes fs_name. */ |
206 | /* Ask VFS whether it likes fs_name. */ |
198 | rc = async_req_0_0(vfs_phone, IPC_M_PING); |
207 | rc = async_req_0_0(vfs_phone, IPC_M_PING); |
199 | if (rc != EOK) { |
208 | if (rc != EOK) { |
200 | async_wait_for(req, NULL); |
209 | async_wait_for(req, NULL); |
201 | async_serialize_end(); |
210 | async_serialize_end(); |
202 | futex_up(&vfs_phone_futex); |
211 | futex_up(&vfs_phone_futex); |
203 | free(mpa); |
212 | free(mpa); |
204 | return (int) rc; |
213 | return (int) rc; |
205 | } |
214 | } |
206 | 215 | ||
207 | async_wait_for(req, &rc); |
216 | async_wait_for(req, &rc); |
208 | async_serialize_end(); |
217 | async_serialize_end(); |
209 | futex_up(&vfs_phone_futex); |
218 | futex_up(&vfs_phone_futex); |
210 | free(mpa); |
219 | free(mpa); |
211 | 220 | ||
212 | return (int) rc; |
221 | return (int) rc; |
213 | } |
222 | } |
214 | 223 | ||
215 | static int _open(const char *path, int lflag, int oflag, ...) |
224 | static int _open(const char *path, int lflag, int oflag, ...) |
216 | { |
225 | { |
217 | ipcarg_t rc; |
226 | ipcarg_t rc; |
218 | ipc_call_t answer; |
227 | ipc_call_t answer; |
219 | aid_t req; |
228 | aid_t req; |
220 | 229 | ||
221 | size_t pa_size; |
230 | size_t pa_size; |
222 | char *pa = absolutize(path, &pa_size); |
231 | char *pa = absolutize(path, &pa_size); |
223 | if (!pa) |
232 | if (!pa) |
224 | return ENOMEM; |
233 | return ENOMEM; |
225 | 234 | ||
226 | futex_down(&vfs_phone_futex); |
235 | futex_down(&vfs_phone_futex); |
227 | async_serialize_start(); |
236 | async_serialize_start(); |
228 | vfs_connect(); |
237 | vfs_connect(); |
229 | 238 | ||
230 | req = async_send_3(vfs_phone, VFS_OPEN, lflag, oflag, 0, &answer); |
239 | req = async_send_3(vfs_phone, VFS_OPEN, lflag, oflag, 0, &answer); |
231 | rc = ipc_data_write_start(vfs_phone, pa, pa_size); |
240 | rc = ipc_data_write_start(vfs_phone, pa, pa_size); |
232 | if (rc != EOK) { |
241 | if (rc != EOK) { |
233 | async_wait_for(req, NULL); |
242 | async_wait_for(req, NULL); |
234 | async_serialize_end(); |
243 | async_serialize_end(); |
235 | futex_up(&vfs_phone_futex); |
244 | futex_up(&vfs_phone_futex); |
236 | free(pa); |
245 | free(pa); |
237 | return (int) rc; |
246 | return (int) rc; |
238 | } |
247 | } |
239 | async_wait_for(req, &rc); |
248 | async_wait_for(req, &rc); |
240 | async_serialize_end(); |
249 | async_serialize_end(); |
241 | futex_up(&vfs_phone_futex); |
250 | futex_up(&vfs_phone_futex); |
242 | free(pa); |
251 | free(pa); |
243 | 252 | ||
244 | if (rc != EOK) |
253 | if (rc != EOK) |
245 | return (int) rc; |
254 | return (int) rc; |
246 | return (int) IPC_GET_ARG1(answer); |
255 | return (int) IPC_GET_ARG1(answer); |
247 | } |
256 | } |
248 | 257 | ||
249 | int open(const char *path, int oflag, ...) |
258 | int open(const char *path, int oflag, ...) |
250 | { |
259 | { |
251 | return _open(path, L_FILE, oflag); |
260 | return _open(path, L_FILE, oflag); |
252 | } |
261 | } |
253 | 262 | ||
254 | int close(int fildes) |
263 | int close(int fildes) |
255 | { |
264 | { |
256 | ipcarg_t rc; |
265 | ipcarg_t rc; |
257 | 266 | ||
258 | futex_down(&vfs_phone_futex); |
267 | futex_down(&vfs_phone_futex); |
259 | async_serialize_start(); |
268 | async_serialize_start(); |
260 | vfs_connect(); |
269 | vfs_connect(); |
261 | 270 | ||
262 | rc = async_req_1_0(vfs_phone, VFS_CLOSE, fildes); |
271 | rc = async_req_1_0(vfs_phone, VFS_CLOSE, fildes); |
263 | 272 | ||
264 | async_serialize_end(); |
273 | async_serialize_end(); |
265 | futex_up(&vfs_phone_futex); |
274 | futex_up(&vfs_phone_futex); |
266 | 275 | ||
267 | return (int)rc; |
276 | return (int)rc; |
268 | } |
277 | } |
269 | 278 | ||
270 | ssize_t read(int fildes, void *buf, size_t nbyte) |
279 | ssize_t read(int fildes, void *buf, size_t nbyte) |
271 | { |
280 | { |
272 | ipcarg_t rc; |
281 | ipcarg_t rc; |
273 | ipc_call_t answer; |
282 | ipc_call_t answer; |
274 | aid_t req; |
283 | aid_t req; |
275 | 284 | ||
276 | futex_down(&vfs_phone_futex); |
285 | futex_down(&vfs_phone_futex); |
277 | async_serialize_start(); |
286 | async_serialize_start(); |
278 | vfs_connect(); |
287 | vfs_connect(); |
279 | 288 | ||
280 | req = async_send_1(vfs_phone, VFS_READ, fildes, &answer); |
289 | req = async_send_1(vfs_phone, VFS_READ, fildes, &answer); |
281 | rc = ipc_data_read_start(vfs_phone, (void *)buf, nbyte); |
290 | rc = ipc_data_read_start(vfs_phone, (void *)buf, nbyte); |
282 | if (rc != EOK) { |
291 | if (rc != EOK) { |
283 | async_wait_for(req, NULL); |
292 | async_wait_for(req, NULL); |
284 | async_serialize_end(); |
293 | async_serialize_end(); |
285 | futex_up(&vfs_phone_futex); |
294 | futex_up(&vfs_phone_futex); |
286 | return (ssize_t) rc; |
295 | return (ssize_t) rc; |
287 | } |
296 | } |
288 | async_wait_for(req, &rc); |
297 | async_wait_for(req, &rc); |
289 | async_serialize_end(); |
298 | async_serialize_end(); |
290 | futex_up(&vfs_phone_futex); |
299 | futex_up(&vfs_phone_futex); |
291 | if (rc == EOK) |
300 | if (rc == EOK) |
292 | return (ssize_t) IPC_GET_ARG1(answer); |
301 | return (ssize_t) IPC_GET_ARG1(answer); |
293 | else |
302 | else |
294 | return rc; |
303 | return rc; |
295 | } |
304 | } |
296 | 305 | ||
297 | ssize_t write(int fildes, const void *buf, size_t nbyte) |
306 | ssize_t write(int fildes, const void *buf, size_t nbyte) |
298 | { |
307 | { |
299 | ipcarg_t rc; |
308 | ipcarg_t rc; |
300 | ipc_call_t answer; |
309 | ipc_call_t answer; |
301 | aid_t req; |
310 | aid_t req; |
302 | 311 | ||
303 | futex_down(&vfs_phone_futex); |
312 | futex_down(&vfs_phone_futex); |
304 | async_serialize_start(); |
313 | async_serialize_start(); |
305 | vfs_connect(); |
314 | vfs_connect(); |
306 | 315 | ||
307 | req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer); |
316 | req = async_send_1(vfs_phone, VFS_WRITE, fildes, &answer); |
308 | rc = ipc_data_write_start(vfs_phone, (void *)buf, nbyte); |
317 | rc = ipc_data_write_start(vfs_phone, (void *)buf, nbyte); |
309 | if (rc != EOK) { |
318 | if (rc != EOK) { |
310 | async_wait_for(req, NULL); |
319 | async_wait_for(req, NULL); |
311 | async_serialize_end(); |
320 | async_serialize_end(); |
312 | futex_up(&vfs_phone_futex); |
321 | futex_up(&vfs_phone_futex); |
313 | return (ssize_t) rc; |
322 | return (ssize_t) rc; |
314 | } |
323 | } |
315 | async_wait_for(req, &rc); |
324 | async_wait_for(req, &rc); |
316 | async_serialize_end(); |
325 | async_serialize_end(); |
317 | futex_up(&vfs_phone_futex); |
326 | futex_up(&vfs_phone_futex); |
318 | if (rc == EOK) |
327 | if (rc == EOK) |
319 | return (ssize_t) IPC_GET_ARG1(answer); |
328 | return (ssize_t) IPC_GET_ARG1(answer); |
320 | else |
329 | else |
321 | return -1; |
330 | return -1; |
322 | } |
331 | } |
323 | 332 | ||
324 | off_t lseek(int fildes, off_t offset, int whence) |
333 | off_t lseek(int fildes, off_t offset, int whence) |
325 | { |
334 | { |
326 | ipcarg_t rc; |
335 | ipcarg_t rc; |
327 | 336 | ||
328 | futex_down(&vfs_phone_futex); |
337 | futex_down(&vfs_phone_futex); |
329 | async_serialize_start(); |
338 | async_serialize_start(); |
330 | vfs_connect(); |
339 | vfs_connect(); |
331 | 340 | ||
332 | ipcarg_t newoffs; |
341 | ipcarg_t newoffs; |
333 | 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, |
334 | &newoffs); |
343 | &newoffs); |
335 | 344 | ||
336 | async_serialize_end(); |
345 | async_serialize_end(); |
337 | futex_up(&vfs_phone_futex); |
346 | futex_up(&vfs_phone_futex); |
338 | 347 | ||
339 | if (rc != EOK) |
348 | if (rc != EOK) |
340 | return (off_t) -1; |
349 | return (off_t) -1; |
341 | 350 | ||
342 | return (off_t) newoffs; |
351 | return (off_t) newoffs; |
343 | } |
352 | } |
344 | 353 | ||
345 | int ftruncate(int fildes, off_t length) |
354 | int ftruncate(int fildes, off_t length) |
346 | { |
355 | { |
347 | ipcarg_t rc; |
356 | ipcarg_t rc; |
348 | 357 | ||
349 | futex_down(&vfs_phone_futex); |
358 | futex_down(&vfs_phone_futex); |
350 | async_serialize_start(); |
359 | async_serialize_start(); |
351 | vfs_connect(); |
360 | vfs_connect(); |
352 | 361 | ||
353 | rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length); |
362 | rc = async_req_2_0(vfs_phone, VFS_TRUNCATE, fildes, length); |
354 | async_serialize_end(); |
363 | async_serialize_end(); |
355 | futex_up(&vfs_phone_futex); |
364 | futex_up(&vfs_phone_futex); |
356 | return (int) rc; |
365 | return (int) rc; |
357 | } |
366 | } |
358 | 367 | ||
359 | DIR *opendir(const char *dirname) |
368 | DIR *opendir(const char *dirname) |
360 | { |
369 | { |
361 | DIR *dirp = malloc(sizeof(DIR)); |
370 | DIR *dirp = malloc(sizeof(DIR)); |
362 | if (!dirp) |
371 | if (!dirp) |
363 | return NULL; |
372 | return NULL; |
364 | dirp->fd = _open(dirname, L_DIRECTORY, 0); |
373 | dirp->fd = _open(dirname, L_DIRECTORY, 0); |
365 | if (dirp->fd < 0) { |
374 | if (dirp->fd < 0) { |
366 | free(dirp); |
375 | free(dirp); |
367 | return NULL; |
376 | return NULL; |
368 | } |
377 | } |
369 | return dirp; |
378 | return dirp; |
370 | } |
379 | } |
371 | 380 | ||
372 | struct dirent *readdir(DIR *dirp) |
381 | struct dirent *readdir(DIR *dirp) |
373 | { |
382 | { |
374 | ssize_t len = read(dirp->fd, &dirp->res.d_name[0], NAME_MAX + 1); |
383 | ssize_t len = read(dirp->fd, &dirp->res.d_name[0], NAME_MAX + 1); |
375 | if (len <= 0) |
384 | if (len <= 0) |
376 | return NULL; |
385 | return NULL; |
377 | return &dirp->res; |
386 | return &dirp->res; |
378 | } |
387 | } |
379 | 388 | ||
380 | void rewinddir(DIR *dirp) |
389 | void rewinddir(DIR *dirp) |
381 | { |
390 | { |
382 | (void) lseek(dirp->fd, 0, SEEK_SET); |
391 | (void) lseek(dirp->fd, 0, SEEK_SET); |
383 | } |
392 | } |
384 | 393 | ||
385 | int closedir(DIR *dirp) |
394 | int closedir(DIR *dirp) |
386 | { |
395 | { |
387 | (void) close(dirp->fd); |
396 | (void) close(dirp->fd); |
388 | free(dirp); |
397 | free(dirp); |
389 | return 0; |
398 | return 0; |
390 | } |
399 | } |
391 | 400 | ||
392 | int mkdir(const char *path, mode_t mode) |
401 | int mkdir(const char *path, mode_t mode) |
393 | { |
402 | { |
394 | ipcarg_t rc; |
403 | ipcarg_t rc; |
395 | aid_t req; |
404 | aid_t req; |
396 | 405 | ||
397 | size_t pa_size; |
406 | size_t pa_size; |
398 | char *pa = absolutize(path, &pa_size); |
407 | char *pa = absolutize(path, &pa_size); |
399 | if (!pa) |
408 | if (!pa) |
400 | return ENOMEM; |
409 | return ENOMEM; |
401 | 410 | ||
402 | futex_down(&vfs_phone_futex); |
411 | futex_down(&vfs_phone_futex); |
403 | async_serialize_start(); |
412 | async_serialize_start(); |
404 | vfs_connect(); |
413 | vfs_connect(); |
405 | 414 | ||
406 | req = async_send_1(vfs_phone, VFS_MKDIR, mode, NULL); |
415 | req = async_send_1(vfs_phone, VFS_MKDIR, mode, NULL); |
407 | rc = ipc_data_write_start(vfs_phone, pa, pa_size); |
416 | rc = ipc_data_write_start(vfs_phone, pa, pa_size); |
408 | if (rc != EOK) { |
417 | if (rc != EOK) { |
409 | async_wait_for(req, NULL); |
418 | async_wait_for(req, NULL); |
410 | async_serialize_end(); |
419 | async_serialize_end(); |
411 | futex_up(&vfs_phone_futex); |
420 | futex_up(&vfs_phone_futex); |
412 | free(pa); |
421 | free(pa); |
413 | return (int) rc; |
422 | return (int) rc; |
414 | } |
423 | } |
415 | async_wait_for(req, &rc); |
424 | async_wait_for(req, &rc); |
416 | async_serialize_end(); |
425 | async_serialize_end(); |
417 | futex_up(&vfs_phone_futex); |
426 | futex_up(&vfs_phone_futex); |
418 | free(pa); |
427 | free(pa); |
419 | return rc; |
428 | return rc; |
420 | } |
429 | } |
421 | 430 | ||
422 | static int _unlink(const char *path, int lflag) |
431 | static int _unlink(const char *path, int lflag) |
423 | { |
432 | { |
424 | ipcarg_t rc; |
433 | ipcarg_t rc; |
425 | aid_t req; |
434 | aid_t req; |
426 | 435 | ||
427 | size_t pa_size; |
436 | size_t pa_size; |
428 | char *pa = absolutize(path, &pa_size); |
437 | char *pa = absolutize(path, &pa_size); |
429 | if (!pa) |
438 | if (!pa) |
430 | return ENOMEM; |
439 | return ENOMEM; |
431 | 440 | ||
432 | futex_down(&vfs_phone_futex); |
441 | futex_down(&vfs_phone_futex); |
433 | async_serialize_start(); |
442 | async_serialize_start(); |
434 | vfs_connect(); |
443 | vfs_connect(); |
435 | 444 | ||
436 | req = async_send_0(vfs_phone, VFS_UNLINK, NULL); |
445 | req = async_send_0(vfs_phone, VFS_UNLINK, NULL); |
437 | rc = ipc_data_write_start(vfs_phone, pa, pa_size); |
446 | rc = ipc_data_write_start(vfs_phone, pa, pa_size); |
438 | if (rc != EOK) { |
447 | if (rc != EOK) { |
439 | async_wait_for(req, NULL); |
448 | async_wait_for(req, NULL); |
440 | async_serialize_end(); |
449 | async_serialize_end(); |
441 | futex_up(&vfs_phone_futex); |
450 | futex_up(&vfs_phone_futex); |
442 | free(pa); |
451 | free(pa); |
443 | return (int) rc; |
452 | return (int) rc; |
444 | } |
453 | } |
445 | async_wait_for(req, &rc); |
454 | async_wait_for(req, &rc); |
446 | async_serialize_end(); |
455 | async_serialize_end(); |
447 | futex_up(&vfs_phone_futex); |
456 | futex_up(&vfs_phone_futex); |
448 | free(pa); |
457 | free(pa); |
449 | return rc; |
458 | return rc; |
450 | } |
459 | } |
451 | 460 | ||
452 | int unlink(const char *path) |
461 | int unlink(const char *path) |
453 | { |
462 | { |
454 | return _unlink(path, L_NONE); |
463 | return _unlink(path, L_NONE); |
455 | } |
464 | } |
456 | 465 | ||
457 | int rmdir(const char *path) |
466 | int rmdir(const char *path) |
458 | { |
467 | { |
459 | return _unlink(path, L_DIRECTORY); |
468 | return _unlink(path, L_DIRECTORY); |
460 | } |
469 | } |
461 | 470 | ||
462 | int rename(const char *old, const char *new) |
471 | int rename(const char *old, const char *new) |
463 | { |
472 | { |
464 | ipcarg_t rc; |
473 | ipcarg_t rc; |
465 | aid_t req; |
474 | aid_t req; |
466 | 475 | ||
467 | size_t olda_size; |
476 | size_t olda_size; |
468 | char *olda = absolutize(old, &olda_size); |
477 | char *olda = absolutize(old, &olda_size); |
469 | if (!olda) |
478 | if (!olda) |
470 | return ENOMEM; |
479 | return ENOMEM; |
471 | 480 | ||
472 | size_t newa_size; |
481 | size_t newa_size; |
473 | char *newa = absolutize(new, &newa_size); |
482 | char *newa = absolutize(new, &newa_size); |
474 | if (!newa) { |
483 | if (!newa) { |
475 | free(olda); |
484 | free(olda); |
476 | return ENOMEM; |
485 | return ENOMEM; |
477 | } |
486 | } |
478 | 487 | ||
479 | futex_down(&vfs_phone_futex); |
488 | futex_down(&vfs_phone_futex); |
480 | async_serialize_start(); |
489 | async_serialize_start(); |
481 | vfs_connect(); |
490 | vfs_connect(); |
482 | 491 | ||
483 | req = async_send_0(vfs_phone, VFS_RENAME, NULL); |
492 | req = async_send_0(vfs_phone, VFS_RENAME, NULL); |
484 | rc = ipc_data_write_start(vfs_phone, olda, olda_size); |
493 | rc = ipc_data_write_start(vfs_phone, olda, olda_size); |
485 | if (rc != EOK) { |
494 | if (rc != EOK) { |
486 | async_wait_for(req, NULL); |
495 | async_wait_for(req, NULL); |
487 | async_serialize_end(); |
496 | async_serialize_end(); |
488 | futex_up(&vfs_phone_futex); |
497 | futex_up(&vfs_phone_futex); |
489 | free(olda); |
498 | free(olda); |
490 | free(newa); |
499 | free(newa); |
491 | return (int) rc; |
500 | return (int) rc; |
492 | } |
501 | } |
493 | rc = ipc_data_write_start(vfs_phone, newa, newa_size); |
502 | rc = ipc_data_write_start(vfs_phone, newa, newa_size); |
494 | if (rc != EOK) { |
503 | if (rc != EOK) { |
495 | async_wait_for(req, NULL); |
504 | async_wait_for(req, NULL); |
496 | async_serialize_end(); |
505 | async_serialize_end(); |
497 | futex_up(&vfs_phone_futex); |
506 | futex_up(&vfs_phone_futex); |
498 | free(olda); |
507 | free(olda); |
499 | free(newa); |
508 | free(newa); |
500 | return (int) rc; |
509 | return (int) rc; |
501 | } |
510 | } |
502 | async_wait_for(req, &rc); |
511 | async_wait_for(req, &rc); |
503 | async_serialize_end(); |
512 | async_serialize_end(); |
504 | futex_up(&vfs_phone_futex); |
513 | futex_up(&vfs_phone_futex); |
505 | free(olda); |
514 | free(olda); |
506 | free(newa); |
515 | free(newa); |
507 | return rc; |
516 | return rc; |
508 | } |
517 | } |
509 | 518 | ||
510 | int chdir(const char *path) |
519 | int chdir(const char *path) |
511 | { |
520 | { |
512 | size_t pa_size; |
521 | size_t pa_size; |
513 | char *pa = absolutize(path, &pa_size); |
522 | char *pa = absolutize(path, &pa_size); |
514 | if (!pa) |
523 | if (!pa) |
515 | return ENOMEM; |
524 | return ENOMEM; |
516 | 525 | ||
517 | DIR *d = opendir(pa); |
526 | DIR *d = opendir(pa); |
518 | if (!d) { |
527 | if (!d) { |
519 | free(pa); |
528 | free(pa); |
520 | return ENOENT; |
529 | return ENOENT; |
521 | } |
530 | } |
522 | 531 | ||
523 | futex_down(&cwd_futex); |
532 | futex_down(&cwd_futex); |
524 | if (cwd_dir) { |
533 | if (cwd_dir) { |
525 | closedir(cwd_dir); |
534 | closedir(cwd_dir); |
526 | cwd_dir = NULL; |
535 | cwd_dir = NULL; |
527 | free(cwd_path); |
536 | free(cwd_path); |
528 | cwd_path = NULL; |
537 | cwd_path = NULL; |
529 | cwd_size = 0; |
538 | cwd_size = 0; |
530 | } |
539 | } |
531 | cwd_dir = d; |
540 | cwd_dir = d; |
532 | cwd_path = pa; |
541 | cwd_path = pa; |
533 | cwd_size = pa_size; |
542 | cwd_size = pa_size; |
534 | futex_up(&cwd_futex); |
543 | futex_up(&cwd_futex); |
535 | return EOK; |
544 | return EOK; |
536 | } |
545 | } |
537 | 546 | ||
538 | char *getcwd(char *buf, size_t size) |
547 | char *getcwd(char *buf, size_t size) |
539 | { |
548 | { |
540 | if (!size) |
549 | if (!size) |
541 | return NULL; |
550 | return NULL; |
542 | futex_down(&cwd_futex); |
551 | futex_down(&cwd_futex); |
543 | if (size < cwd_size + 1) { |
552 | if (size < cwd_size + 1) { |
544 | futex_up(&cwd_futex); |
553 | futex_up(&cwd_futex); |
545 | return NULL; |
554 | return NULL; |
546 | } |
555 | } |
547 | str_cpy(buf, size, cwd_path); |
556 | str_cpy(buf, size, cwd_path); |
548 | futex_up(&cwd_futex); |
557 | futex_up(&cwd_futex); |
549 | return buf; |
558 | return buf; |
550 | } |
559 | } |
551 | 560 | ||
552 | /** @} |
561 | /** @} |
553 | */ |
562 | */ |
554 | 563 |