Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Remote target system call support. |
88b9d363 | 2 | Copyright 1997-2022 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by Cygnus Solutions. |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4744ac1b | 9 | the Free Software Foundation; either version 3 of the License, or |
c906108c SS |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
4744ac1b | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | /* This interface isn't intended to be specific to any particular kind | |
21 | of remote (hardware, simulator, whatever). As such, support for it | |
22 | (e.g. sim/common/callback.c) should *not* live in the simulator source | |
23 | tree, nor should it live in the gdb source tree. K&R C must be | |
24 | supported. */ | |
25 | ||
6df01ab8 MF |
26 | /* This must come before any other includes. */ |
27 | #include "defs.h" | |
28 | ||
c906108c SS |
29 | #include "ansidecl.h" |
30 | #include "libiberty.h" | |
c906108c | 31 | #include <stdarg.h> |
c906108c | 32 | #include <stdio.h> |
c906108c | 33 | #include <stdlib.h> |
027e2a04 | 34 | #include <string.h> |
c906108c SS |
35 | #ifdef HAVE_UNISTD_H |
36 | #include <unistd.h> | |
37 | #endif | |
38 | #include <errno.h> | |
39 | #include <fcntl.h> | |
40 | #include <time.h> | |
41 | #include <sys/types.h> | |
42 | #include <sys/stat.h> | |
df68e12b | 43 | #include "sim/callback.h" |
c906108c SS |
44 | #include "targ-vals.h" |
45 | ||
46 | #ifndef ENOSYS | |
47 | #define ENOSYS EINVAL | |
48 | #endif | |
49 | #ifndef ENAMETOOLONG | |
50 | #define ENAMETOOLONG EINVAL | |
51 | #endif | |
52 | ||
53 | /* Maximum length of a path name. */ | |
54 | #ifndef MAX_PATH_LEN | |
55 | #define MAX_PATH_LEN 1024 | |
56 | #endif | |
57 | ||
58 | /* When doing file read/writes, do this many bytes at a time. */ | |
59 | #define FILE_XFR_SIZE 4096 | |
60 | ||
61 | /* FIXME: for now, need to consider target word size. */ | |
62 | #define TWORD long | |
63 | #define TADDR unsigned long | |
64 | ||
027e2a04 HPN |
65 | /* Path to be prepended to syscalls with absolute paths, and to be |
66 | chdir:ed at startup, if not empty. */ | |
67 | char *simulator_sysroot = ""; | |
68 | ||
c906108c SS |
69 | /* Utility of cb_syscall to fetch a path name or other string from the target. |
70 | The result is 0 for success or a host errno value. */ | |
71 | ||
71712327 | 72 | int |
1a8a700e MF |
73 | cb_get_string (host_callback *cb, CB_SYSCALL *sc, char *buf, int buflen, |
74 | TADDR addr) | |
c906108c SS |
75 | { |
76 | char *p, *pend; | |
77 | ||
78 | for (p = buf, pend = buf + buflen; p < pend; ++p, ++addr) | |
79 | { | |
80 | /* No, it isn't expected that this would cause one transaction with | |
81 | the remote target for each byte. The target could send the | |
82 | path name along with the syscall request, and cache the file | |
83 | name somewhere (or otherwise tweak this as desired). */ | |
84 | unsigned int count = (*sc->read_mem) (cb, sc, addr, p, 1); | |
028f6515 | 85 | |
c906108c SS |
86 | if (count != 1) |
87 | return EINVAL; | |
88 | if (*p == 0) | |
89 | break; | |
90 | } | |
91 | if (p == pend) | |
92 | return ENAMETOOLONG; | |
93 | return 0; | |
94 | } | |
95 | ||
96 | /* Utility of cb_syscall to fetch a path name. | |
97 | The buffer is malloc'd and the address is stored in BUFP. | |
027e2a04 HPN |
98 | The result is that of get_string, but prepended with |
99 | simulator_sysroot if the string starts with '/'. | |
c906108c SS |
100 | If an error occurs, no buffer is left malloc'd. */ |
101 | ||
102 | static int | |
1a8a700e | 103 | get_path (host_callback *cb, CB_SYSCALL *sc, TADDR addr, char **bufp) |
c906108c SS |
104 | { |
105 | char *buf = xmalloc (MAX_PATH_LEN); | |
106 | int result; | |
027e2a04 | 107 | int sysroot_len = strlen (simulator_sysroot); |
c906108c | 108 | |
71712327 | 109 | result = cb_get_string (cb, sc, buf, MAX_PATH_LEN - sysroot_len, addr); |
c906108c | 110 | if (result == 0) |
027e2a04 HPN |
111 | { |
112 | /* Prepend absolute paths with simulator_sysroot. Relative paths | |
113 | are supposed to be relative to a chdir within that path, but at | |
114 | this point unknown where. */ | |
115 | if (simulator_sysroot[0] != '\0' && *buf == '/') | |
116 | { | |
117 | /* Considering expected rareness of syscalls with absolute | |
118 | file paths (compared to relative file paths and insn | |
119 | execution), it does not seem worthwhile to rearrange things | |
120 | to get rid of the string moves here; we'd need at least an | |
121 | extra call to check the initial '/' in the path. */ | |
122 | memmove (buf + sysroot_len, buf, sysroot_len); | |
123 | memcpy (buf, simulator_sysroot, sysroot_len); | |
124 | } | |
125 | ||
126 | *bufp = buf; | |
127 | } | |
c906108c SS |
128 | else |
129 | free (buf); | |
130 | return result; | |
131 | } | |
132 | ||
133 | /* Perform a system call on behalf of the target. */ | |
134 | ||
135 | CB_RC | |
1a8a700e | 136 | cb_syscall (host_callback *cb, CB_SYSCALL *sc) |
c906108c SS |
137 | { |
138 | TWORD result = 0, errcode = 0; | |
139 | ||
140 | if (sc->magic != CB_SYSCALL_MAGIC) | |
141 | abort (); | |
142 | ||
143 | switch (cb_target_to_host_syscall (cb, sc->func)) | |
144 | { | |
145 | #if 0 /* FIXME: wip */ | |
146 | case CB_SYS_argvlen : | |
147 | { | |
148 | /* Compute how much space is required to store the argv,envp | |
149 | strings so that the program can allocate the space and then | |
150 | call SYS_argv to fetch the values. */ | |
151 | int addr_size = cb->addr_size; | |
152 | int argc,envc,arglen,envlen; | |
153 | const char **argv = cb->init_argv; | |
154 | const char **envp = cb->init_envp; | |
155 | ||
156 | argc = arglen = 0; | |
157 | if (argv) | |
158 | { | |
159 | for ( ; argv[argc]; ++argc) | |
160 | arglen += strlen (argv[argc]) + 1; | |
161 | } | |
162 | envc = envlen = 0; | |
163 | if (envp) | |
164 | { | |
165 | for ( ; envp[envc]; ++envc) | |
166 | envlen += strlen (envp[envc]) + 1; | |
167 | } | |
168 | result = arglen + envlen; | |
169 | break; | |
170 | } | |
171 | ||
172 | case CB_SYS_argv : | |
173 | { | |
174 | /* Pointer to target's buffer. */ | |
175 | TADDR tbuf = sc->arg1; | |
176 | /* Buffer size. */ | |
177 | int bufsize = sc->arg2; | |
178 | /* Q is the target address of where all the strings go. */ | |
179 | TADDR q; | |
180 | int word_size = cb->word_size; | |
181 | int i,argc,envc,len; | |
182 | const char **argv = cb->init_argv; | |
183 | const char **envp = cb->init_envp; | |
184 | ||
185 | argc = 0; | |
186 | if (argv) | |
187 | { | |
188 | for ( ; argv[argc]; ++argc) | |
189 | { | |
190 | int len = strlen (argv[argc]); | |
191 | int written = (*sc->write_mem) (cb, sc, tbuf, argv[argc], len + 1); | |
192 | if (written != len) | |
193 | { | |
194 | result = -1; | |
195 | errcode = EINVAL; | |
196 | goto FinishSyscall; | |
197 | } | |
198 | tbuf = len + 1; | |
199 | } | |
200 | } | |
201 | if ((*sc->write_mem) (cb, sc, tbuf, "", 1) != 1) | |
202 | { | |
203 | result = -1; | |
204 | errcode = EINVAL; | |
205 | goto FinishSyscall; | |
206 | } | |
207 | tbuf++; | |
208 | envc = 0; | |
209 | if (envp) | |
210 | { | |
211 | for ( ; envp[envc]; ++envc) | |
212 | { | |
213 | int len = strlen (envp[envc]); | |
214 | int written = (*sc->write_mem) (cb, sc, tbuf, envp[envc], len + 1); | |
215 | if (written != len) | |
216 | { | |
217 | result = -1; | |
218 | errcode = EINVAL; | |
219 | goto FinishSyscall; | |
220 | } | |
221 | tbuf = len + 1; | |
222 | } | |
223 | } | |
224 | if ((*sc->write_mem) (cb, sc, tbuf, "", 1) != 1) | |
225 | { | |
226 | result = -1; | |
227 | errcode = EINVAL; | |
228 | goto FinishSyscall; | |
229 | } | |
230 | result = argc; | |
231 | sc->result2 = envc; | |
232 | break; | |
233 | } | |
234 | #endif /* wip */ | |
235 | ||
236 | case CB_SYS_exit : | |
7d5c6c43 | 237 | /* Caller must catch and handle; see sim_syscall as an example. */ |
c906108c SS |
238 | break; |
239 | ||
240 | case CB_SYS_open : | |
241 | { | |
242 | char *path; | |
243 | ||
244 | errcode = get_path (cb, sc, sc->arg1, &path); | |
245 | if (errcode != 0) | |
246 | { | |
247 | result = -1; | |
248 | goto FinishSyscall; | |
249 | } | |
250 | result = (*cb->open) (cb, path, sc->arg2 /*, sc->arg3*/); | |
251 | free (path); | |
252 | if (result < 0) | |
253 | goto ErrorFinish; | |
254 | } | |
255 | break; | |
256 | ||
257 | case CB_SYS_close : | |
258 | result = (*cb->close) (cb, sc->arg1); | |
259 | if (result < 0) | |
260 | goto ErrorFinish; | |
261 | break; | |
262 | ||
263 | case CB_SYS_read : | |
264 | { | |
265 | /* ??? Perfect handling of error conditions may require only one | |
266 | call to cb->read. One can't assume all the data is | |
267 | contiguously stored in host memory so that would require | |
268 | malloc'ing/free'ing the space. Maybe later. */ | |
269 | char buf[FILE_XFR_SIZE]; | |
270 | int fd = sc->arg1; | |
271 | TADDR addr = sc->arg2; | |
272 | size_t count = sc->arg3; | |
273 | size_t bytes_read = 0; | |
274 | int bytes_written; | |
275 | ||
276 | while (count > 0) | |
277 | { | |
b981d709 | 278 | if (cb_is_stdin (cb, fd)) |
c906108c SS |
279 | result = (int) (*cb->read_stdin) (cb, buf, |
280 | (count < FILE_XFR_SIZE | |
281 | ? count : FILE_XFR_SIZE)); | |
282 | else | |
283 | result = (int) (*cb->read) (cb, fd, buf, | |
284 | (count < FILE_XFR_SIZE | |
285 | ? count : FILE_XFR_SIZE)); | |
286 | if (result == -1) | |
287 | goto ErrorFinish; | |
288 | if (result == 0) /* EOF */ | |
289 | break; | |
290 | bytes_written = (*sc->write_mem) (cb, sc, addr, buf, result); | |
291 | if (bytes_written != result) | |
292 | { | |
293 | result = -1; | |
294 | errcode = EINVAL; | |
295 | goto FinishSyscall; | |
296 | } | |
297 | bytes_read += result; | |
298 | count -= result; | |
299 | addr += result; | |
300 | /* If this is a short read, don't go back for more */ | |
301 | if (result != FILE_XFR_SIZE) | |
302 | break; | |
303 | } | |
304 | result = bytes_read; | |
305 | } | |
306 | break; | |
307 | ||
308 | case CB_SYS_write : | |
309 | { | |
310 | /* ??? Perfect handling of error conditions may require only one | |
311 | call to cb->write. One can't assume all the data is | |
312 | contiguously stored in host memory so that would require | |
313 | malloc'ing/free'ing the space. Maybe later. */ | |
314 | char buf[FILE_XFR_SIZE]; | |
315 | int fd = sc->arg1; | |
316 | TADDR addr = sc->arg2; | |
317 | size_t count = sc->arg3; | |
318 | int bytes_read; | |
319 | size_t bytes_written = 0; | |
320 | ||
321 | while (count > 0) | |
322 | { | |
323 | int bytes_to_read = count < FILE_XFR_SIZE ? count : FILE_XFR_SIZE; | |
324 | bytes_read = (*sc->read_mem) (cb, sc, addr, buf, bytes_to_read); | |
325 | if (bytes_read != bytes_to_read) | |
326 | { | |
327 | result = -1; | |
328 | errcode = EINVAL; | |
329 | goto FinishSyscall; | |
330 | } | |
34b47c38 | 331 | if (cb_is_stdout (cb, fd)) |
c906108c SS |
332 | { |
333 | result = (int) (*cb->write_stdout) (cb, buf, bytes_read); | |
334 | (*cb->flush_stdout) (cb); | |
335 | } | |
34b47c38 | 336 | else if (cb_is_stderr (cb, fd)) |
c906108c SS |
337 | { |
338 | result = (int) (*cb->write_stderr) (cb, buf, bytes_read); | |
339 | (*cb->flush_stderr) (cb); | |
340 | } | |
341 | else | |
342 | result = (int) (*cb->write) (cb, fd, buf, bytes_read); | |
343 | if (result == -1) | |
344 | goto ErrorFinish; | |
345 | bytes_written += result; | |
346 | count -= result; | |
347 | addr += result; | |
348 | } | |
349 | result = bytes_written; | |
350 | } | |
351 | break; | |
352 | ||
353 | case CB_SYS_lseek : | |
354 | { | |
355 | int fd = sc->arg1; | |
356 | unsigned long offset = sc->arg2; | |
357 | int whence = sc->arg3; | |
358 | ||
359 | result = (*cb->lseek) (cb, fd, offset, whence); | |
360 | if (result < 0) | |
361 | goto ErrorFinish; | |
362 | } | |
363 | break; | |
364 | ||
365 | case CB_SYS_unlink : | |
366 | { | |
367 | char *path; | |
368 | ||
369 | errcode = get_path (cb, sc, sc->arg1, &path); | |
370 | if (errcode != 0) | |
371 | { | |
372 | result = -1; | |
373 | goto FinishSyscall; | |
374 | } | |
375 | result = (*cb->unlink) (cb, path); | |
376 | free (path); | |
377 | if (result < 0) | |
378 | goto ErrorFinish; | |
379 | } | |
380 | break; | |
381 | ||
5d945fec HPN |
382 | case CB_SYS_truncate : |
383 | { | |
384 | char *path; | |
385 | long len = sc->arg2; | |
386 | ||
387 | errcode = get_path (cb, sc, sc->arg1, &path); | |
388 | if (errcode != 0) | |
389 | { | |
390 | result = -1; | |
391 | errcode = EFAULT; | |
392 | goto FinishSyscall; | |
393 | } | |
394 | result = (*cb->truncate) (cb, path, len); | |
395 | free (path); | |
396 | if (result < 0) | |
397 | goto ErrorFinish; | |
398 | } | |
399 | break; | |
400 | ||
401 | case CB_SYS_ftruncate : | |
402 | { | |
403 | int fd = sc->arg1; | |
404 | long len = sc->arg2; | |
405 | ||
406 | result = (*cb->ftruncate) (cb, fd, len); | |
407 | if (result < 0) | |
408 | goto ErrorFinish; | |
409 | } | |
410 | break; | |
411 | ||
82571856 HPN |
412 | case CB_SYS_rename : |
413 | { | |
414 | char *path1, *path2; | |
415 | ||
416 | errcode = get_path (cb, sc, sc->arg1, &path1); | |
417 | if (errcode != 0) | |
418 | { | |
419 | result = -1; | |
420 | errcode = EFAULT; | |
421 | goto FinishSyscall; | |
422 | } | |
423 | errcode = get_path (cb, sc, sc->arg2, &path2); | |
424 | if (errcode != 0) | |
425 | { | |
426 | result = -1; | |
427 | errcode = EFAULT; | |
428 | free (path1); | |
429 | goto FinishSyscall; | |
430 | } | |
431 | result = (*cb->rename) (cb, path1, path2); | |
432 | free (path1); | |
433 | free (path2); | |
434 | if (result < 0) | |
435 | goto ErrorFinish; | |
436 | } | |
437 | break; | |
438 | ||
c906108c SS |
439 | case CB_SYS_stat : |
440 | { | |
441 | char *path,*buf; | |
442 | int buflen; | |
443 | struct stat statbuf; | |
444 | TADDR addr = sc->arg2; | |
445 | ||
446 | errcode = get_path (cb, sc, sc->arg1, &path); | |
447 | if (errcode != 0) | |
448 | { | |
449 | result = -1; | |
450 | goto FinishSyscall; | |
451 | } | |
2d7bb758 | 452 | result = (*cb->to_stat) (cb, path, &statbuf); |
c906108c SS |
453 | free (path); |
454 | if (result < 0) | |
455 | goto ErrorFinish; | |
456 | buflen = cb_host_to_target_stat (cb, NULL, NULL); | |
457 | buf = xmalloc (buflen); | |
458 | if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen) | |
459 | { | |
460 | /* The translation failed. This is due to an internal | |
461 | host program error, not the target's fault. */ | |
462 | free (buf); | |
463 | errcode = ENOSYS; | |
464 | result = -1; | |
465 | goto FinishSyscall; | |
466 | } | |
467 | if ((*sc->write_mem) (cb, sc, addr, buf, buflen) != buflen) | |
468 | { | |
469 | free (buf); | |
470 | errcode = EINVAL; | |
471 | result = -1; | |
472 | goto FinishSyscall; | |
473 | } | |
474 | free (buf); | |
475 | } | |
476 | break; | |
477 | ||
478 | case CB_SYS_fstat : | |
479 | { | |
480 | char *buf; | |
481 | int buflen; | |
482 | struct stat statbuf; | |
483 | TADDR addr = sc->arg2; | |
484 | ||
2d7bb758 | 485 | result = (*cb->to_fstat) (cb, sc->arg1, &statbuf); |
c906108c SS |
486 | if (result < 0) |
487 | goto ErrorFinish; | |
488 | buflen = cb_host_to_target_stat (cb, NULL, NULL); | |
489 | buf = xmalloc (buflen); | |
490 | if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen) | |
491 | { | |
492 | /* The translation failed. This is due to an internal | |
493 | host program error, not the target's fault. */ | |
494 | free (buf); | |
495 | errcode = ENOSYS; | |
496 | result = -1; | |
497 | goto FinishSyscall; | |
498 | } | |
499 | if ((*sc->write_mem) (cb, sc, addr, buf, buflen) != buflen) | |
500 | { | |
501 | free (buf); | |
502 | errcode = EINVAL; | |
503 | result = -1; | |
504 | goto FinishSyscall; | |
505 | } | |
506 | free (buf); | |
507 | } | |
508 | break; | |
509 | ||
0d3cd463 HPN |
510 | case CB_SYS_lstat : |
511 | { | |
512 | char *path, *buf; | |
513 | int buflen; | |
514 | struct stat statbuf; | |
515 | TADDR addr = sc->arg2; | |
516 | ||
517 | errcode = get_path (cb, sc, sc->arg1, &path); | |
518 | if (errcode != 0) | |
519 | { | |
520 | result = -1; | |
521 | goto FinishSyscall; | |
522 | } | |
2d7bb758 | 523 | result = (*cb->to_lstat) (cb, path, &statbuf); |
0d3cd463 HPN |
524 | free (path); |
525 | if (result < 0) | |
526 | goto ErrorFinish; | |
527 | ||
528 | buflen = cb_host_to_target_stat (cb, NULL, NULL); | |
529 | buf = xmalloc (buflen); | |
530 | if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen) | |
531 | { | |
532 | /* The translation failed. This is due to an internal | |
533 | host program error, not the target's fault. | |
534 | Unfortunately, it's hard to test this case, so there's no | |
535 | test-case for this execution path. */ | |
536 | free (buf); | |
537 | errcode = ENOSYS; | |
538 | result = -1; | |
539 | goto FinishSyscall; | |
540 | } | |
541 | ||
542 | if ((*sc->write_mem) (cb, sc, addr, buf, buflen) != buflen) | |
543 | { | |
544 | free (buf); | |
545 | errcode = EINVAL; | |
546 | result = -1; | |
547 | goto FinishSyscall; | |
548 | } | |
549 | ||
550 | free (buf); | |
551 | } | |
552 | break; | |
553 | ||
97f669ed HPN |
554 | case CB_SYS_pipe : |
555 | { | |
556 | int p[2]; | |
557 | char *target_p = xcalloc (1, cb->target_sizeof_int * 2); | |
558 | ||
559 | result = (*cb->pipe) (cb, p); | |
560 | if (result != 0) | |
561 | goto ErrorFinish; | |
562 | ||
563 | cb_store_target_endian (cb, target_p, cb->target_sizeof_int, p[0]); | |
564 | cb_store_target_endian (cb, target_p + cb->target_sizeof_int, | |
565 | cb->target_sizeof_int, p[1]); | |
566 | if ((*sc->write_mem) (cb, sc, sc->arg1, target_p, | |
567 | cb->target_sizeof_int * 2) | |
568 | != cb->target_sizeof_int * 2) | |
569 | { | |
570 | /* Close the pipe fd:s. */ | |
571 | (*cb->close) (cb, p[0]); | |
572 | (*cb->close) (cb, p[1]); | |
573 | errcode = EFAULT; | |
574 | result = -1; | |
575 | } | |
576 | ||
577 | free (target_p); | |
578 | } | |
579 | break; | |
580 | ||
7da5cf78 | 581 | case CB_SYS_getpid: |
c45cffdb MF |
582 | /* POSIX says getpid always succeeds. */ |
583 | result = (*cb->getpid) (cb); | |
7da5cf78 MF |
584 | break; |
585 | ||
d394a6ef MF |
586 | case CB_SYS_kill: |
587 | /* If killing self, leave it to the caller to process so it can send the | |
588 | signal to the engine. */ | |
589 | if (sc->arg1 == (*cb->getpid) (cb)) | |
590 | { | |
591 | result = -1; | |
592 | errcode = ENOSYS; | |
593 | } | |
594 | else | |
595 | { | |
596 | int signum = cb_target_to_host_signal (cb, sc->arg2); | |
597 | ||
598 | result = (*cb->kill) (cb, sc->arg1, signum); | |
599 | cb->last_errno = errno; | |
600 | goto ErrorFinish; | |
601 | } | |
602 | break; | |
603 | ||
c906108c SS |
604 | case CB_SYS_time : |
605 | { | |
606 | /* FIXME: May wish to change CB_SYS_time to something else. | |
607 | We might also want gettimeofday or times, but if system calls | |
608 | can be built on others, we can keep the number we have to support | |
609 | here down. */ | |
00330cd1 | 610 | time_t t = (*cb->time) (cb); |
c906108c SS |
611 | result = t; |
612 | /* It is up to target code to process the argument to time(). */ | |
613 | } | |
614 | break; | |
615 | ||
616 | case CB_SYS_chdir : | |
617 | case CB_SYS_chmod : | |
618 | case CB_SYS_utime : | |
619 | /* fall through for now */ | |
620 | ||
621 | default : | |
622 | result = -1; | |
623 | errcode = ENOSYS; | |
624 | break; | |
625 | } | |
626 | ||
627 | FinishSyscall: | |
628 | sc->result = result; | |
629 | if (errcode == 0) | |
630 | sc->errcode = 0; | |
631 | else | |
632 | sc->errcode = cb_host_to_target_errno (cb, errcode); | |
633 | return CB_RC_OK; | |
634 | ||
635 | ErrorFinish: | |
636 | sc->result = result; | |
637 | sc->errcode = (*cb->get_errno) (cb); | |
638 | return CB_RC_OK; | |
639 | } |