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