Commit | Line | Data |
4633a7c4 |
1 | #define INCL_DOS |
2 | #define INCL_NOPM |
7a2f0d5b |
3 | #define INCL_DOSFILEMGR |
760ac839 |
4 | #define INCL_DOSMEMMGR |
5 | #define INCL_DOSERRORS |
4633a7c4 |
6 | #include <os2.h> |
7 | |
8 | /* |
9 | * Various Unix compatibility functions for OS/2 |
10 | */ |
11 | |
12 | #include <stdio.h> |
13 | #include <errno.h> |
14 | #include <limits.h> |
15 | #include <process.h> |
72ea3524 |
16 | #include <fcntl.h> |
4633a7c4 |
17 | |
18 | #include "EXTERN.h" |
19 | #include "perl.h" |
20 | |
dd96f567 |
21 | #ifdef USE_THREADS |
22 | |
23 | typedef void (*emx_startroutine)(void *); |
24 | typedef void* (*pthreads_startroutine)(void *); |
25 | |
26 | enum pthreads_state { |
27 | pthreads_st_none = 0, |
28 | pthreads_st_run, |
29 | pthreads_st_exited, |
30 | pthreads_st_detached, |
31 | pthreads_st_waited, |
32 | }; |
33 | const char *pthreads_states[] = { |
34 | "uninit", |
35 | "running", |
36 | "exited", |
37 | "detached", |
38 | "waited for", |
39 | }; |
40 | |
41 | typedef struct { |
42 | void *status; |
3aefca04 |
43 | perl_cond cond; |
dd96f567 |
44 | enum pthreads_state state; |
45 | } thread_join_t; |
46 | |
47 | thread_join_t *thread_join_data; |
48 | int thread_join_count; |
3aefca04 |
49 | perl_mutex start_thread_mutex; |
dd96f567 |
50 | |
51 | int |
3aefca04 |
52 | pthread_join(perl_os_thread tid, void **status) |
dd96f567 |
53 | { |
54 | MUTEX_LOCK(&start_thread_mutex); |
55 | switch (thread_join_data[tid].state) { |
56 | case pthreads_st_exited: |
57 | thread_join_data[tid].state = pthreads_st_none; /* Ready to reuse */ |
58 | MUTEX_UNLOCK(&start_thread_mutex); |
59 | *status = thread_join_data[tid].status; |
60 | break; |
61 | case pthreads_st_waited: |
62 | MUTEX_UNLOCK(&start_thread_mutex); |
63 | croak("join with a thread with a waiter"); |
64 | break; |
65 | case pthreads_st_run: |
66 | thread_join_data[tid].state = pthreads_st_waited; |
67 | COND_INIT(&thread_join_data[tid].cond); |
68 | MUTEX_UNLOCK(&start_thread_mutex); |
69 | COND_WAIT(&thread_join_data[tid].cond, NULL); |
70 | COND_DESTROY(&thread_join_data[tid].cond); |
71 | thread_join_data[tid].state = pthreads_st_none; /* Ready to reuse */ |
72 | *status = thread_join_data[tid].status; |
73 | break; |
74 | default: |
75 | MUTEX_UNLOCK(&start_thread_mutex); |
76 | croak("join: unknown thread state: '%s'", |
77 | pthreads_states[thread_join_data[tid].state]); |
78 | break; |
79 | } |
80 | return 0; |
81 | } |
82 | |
83 | void |
84 | pthread_startit(void *arg) |
85 | { |
86 | /* Thread is already started, we need to transfer control only */ |
87 | pthreads_startroutine start_routine = *((pthreads_startroutine*)arg); |
88 | int tid = pthread_self(); |
89 | void *retval; |
90 | |
91 | arg = ((void**)arg)[1]; |
92 | if (tid >= thread_join_count) { |
93 | int oc = thread_join_count; |
94 | |
95 | thread_join_count = tid + 5 + tid/5; |
96 | if (thread_join_data) { |
97 | Renew(thread_join_data, thread_join_count, thread_join_t); |
98 | Zero(thread_join_data + oc, thread_join_count - oc, thread_join_t); |
99 | } else { |
100 | Newz(1323, thread_join_data, thread_join_count, thread_join_t); |
101 | } |
102 | } |
103 | if (thread_join_data[tid].state != pthreads_st_none) |
104 | croak("attempt to reuse thread id %i", tid); |
105 | thread_join_data[tid].state = pthreads_st_run; |
106 | /* Now that we copied/updated the guys, we may release the caller... */ |
107 | MUTEX_UNLOCK(&start_thread_mutex); |
108 | thread_join_data[tid].status = (*start_routine)(arg); |
109 | switch (thread_join_data[tid].state) { |
110 | case pthreads_st_waited: |
111 | COND_SIGNAL(&thread_join_data[tid].cond); |
112 | break; |
113 | default: |
114 | thread_join_data[tid].state = pthreads_st_exited; |
115 | break; |
116 | } |
117 | } |
118 | |
119 | int |
3aefca04 |
120 | pthread_create(perl_os_thread *tid, const pthread_attr_t *attr, |
dd96f567 |
121 | void *(*start_routine)(void*), void *arg) |
122 | { |
123 | void *args[2]; |
124 | |
125 | args[0] = (void*)start_routine; |
126 | args[1] = arg; |
127 | |
128 | MUTEX_LOCK(&start_thread_mutex); |
129 | *tid = _beginthread(pthread_startit, /*stack*/ NULL, |
130 | /*stacksize*/ 10*1024*1024, (void*)args); |
131 | MUTEX_LOCK(&start_thread_mutex); |
132 | MUTEX_UNLOCK(&start_thread_mutex); |
133 | return *tid ? 0 : EINVAL; |
134 | } |
135 | |
136 | int |
3aefca04 |
137 | pthread_detach(perl_os_thread tid) |
dd96f567 |
138 | { |
139 | MUTEX_LOCK(&start_thread_mutex); |
140 | switch (thread_join_data[tid].state) { |
141 | case pthreads_st_waited: |
142 | MUTEX_UNLOCK(&start_thread_mutex); |
143 | croak("detach on a thread with a waiter"); |
144 | break; |
145 | case pthreads_st_run: |
146 | thread_join_data[tid].state = pthreads_st_detached; |
147 | MUTEX_UNLOCK(&start_thread_mutex); |
148 | break; |
149 | default: |
150 | MUTEX_UNLOCK(&start_thread_mutex); |
151 | croak("detach: unknown thread state: '%s'", |
152 | pthreads_states[thread_join_data[tid].state]); |
153 | break; |
154 | } |
155 | return 0; |
156 | } |
157 | |
158 | /* This is a very bastardized version: */ |
159 | int |
3aefca04 |
160 | os2_cond_wait(perl_cond *c, perl_mutex *m) |
dd96f567 |
161 | { |
162 | int rc; |
6b88bc9c |
163 | if ((rc = DosResetEventSem(*c,&PL_na)) && (rc != ERROR_ALREADY_RESET)) |
dd96f567 |
164 | croak("panic: COND_WAIT-reset: rc=%i", rc); |
165 | if (m) MUTEX_UNLOCK(m); |
91643db9 |
166 | if (CheckOSError(DosWaitEventSem(*c,SEM_INDEFINITE_WAIT)) |
167 | && (rc != ERROR_INTERRUPT)) |
dd96f567 |
168 | croak("panic: COND_WAIT: rc=%i", rc); |
91643db9 |
169 | if (rc == ERROR_INTERRUPT) |
170 | errno = EINTR; |
dd96f567 |
171 | if (m) MUTEX_LOCK(m); |
172 | } |
173 | #endif |
174 | |
4633a7c4 |
175 | /*****************************************************************************/ |
72ea3524 |
176 | /* 2.1 would not resolve symbols on demand, and has no ExtLIBPATH. */ |
177 | static PFN ExtFCN[2]; /* Labeled by ord below. */ |
178 | static USHORT loadOrd[2] = { 874, 873 }; /* Query=874, Set=873. */ |
179 | #define ORD_QUERY_ELP 0 |
180 | #define ORD_SET_ELP 1 |
181 | |
182 | APIRET |
183 | loadByOrd(ULONG ord) |
184 | { |
185 | if (ExtFCN[ord] == NULL) { |
186 | static HMODULE hdosc = 0; |
187 | BYTE buf[20]; |
188 | PFN fcn; |
189 | APIRET rc; |
190 | |
191 | if ((!hdosc && CheckOSError(DosLoadModule(buf, sizeof buf, |
192 | "doscalls", &hdosc))) |
193 | || CheckOSError(DosQueryProcAddr(hdosc, loadOrd[ord], NULL, &fcn))) |
194 | die("This version of OS/2 does not support doscalls.%i", |
195 | loadOrd[ord]); |
196 | ExtFCN[ord] = fcn; |
197 | } |
198 | if ((long)ExtFCN[ord] == -1) die("panic queryaddr"); |
199 | } |
200 | |
4633a7c4 |
201 | /* priorities */ |
6f064249 |
202 | static signed char priors[] = {0, 1, 3, 2}; /* Last two interchanged, |
203 | self inverse. */ |
204 | #define QSS_INI_BUFFER 1024 |
4633a7c4 |
205 | |
6f064249 |
206 | PQTOPLEVEL |
207 | get_sysinfo(ULONG pid, ULONG flags) |
4633a7c4 |
208 | { |
6f064249 |
209 | char *pbuffer; |
210 | ULONG rc, buf_len = QSS_INI_BUFFER; |
211 | |
fc36a67e |
212 | New(1322, pbuffer, buf_len, char); |
6f064249 |
213 | /* QSS_PROCESS | QSS_MODULE | QSS_SEMAPHORES | QSS_SHARED */ |
214 | rc = QuerySysState(flags, pid, pbuffer, buf_len); |
215 | while (rc == ERROR_BUFFER_OVERFLOW) { |
216 | Renew(pbuffer, buf_len *= 2, char); |
df3ef7a9 |
217 | rc = QuerySysState(flags, pid, pbuffer, buf_len); |
6f064249 |
218 | } |
219 | if (rc) { |
220 | FillOSError(rc); |
221 | Safefree(pbuffer); |
222 | return 0; |
223 | } |
224 | return (PQTOPLEVEL)pbuffer; |
225 | } |
226 | |
227 | #define PRIO_ERR 0x1111 |
228 | |
229 | static ULONG |
230 | sys_prio(pid) |
231 | { |
232 | ULONG prio; |
233 | PQTOPLEVEL psi; |
234 | |
235 | psi = get_sysinfo(pid, QSS_PROCESS); |
236 | if (!psi) { |
237 | return PRIO_ERR; |
238 | } |
239 | if (pid != psi->procdata->pid) { |
240 | Safefree(psi); |
241 | croak("panic: wrong pid in sysinfo"); |
242 | } |
243 | prio = psi->procdata->threads->priority; |
244 | Safefree(psi); |
245 | return prio; |
246 | } |
247 | |
248 | int |
249 | setpriority(int which, int pid, int val) |
250 | { |
251 | ULONG rc, prio; |
252 | PQTOPLEVEL psi; |
253 | |
254 | prio = sys_prio(pid); |
255 | |
55497cff |
256 | if (!(_emx_env & 0x200)) return 0; /* Nop if not OS/2. */ |
6f064249 |
257 | if (priors[(32 - val) >> 5] + 1 == (prio >> 8)) { |
258 | /* Do not change class. */ |
259 | return CheckOSError(DosSetPriority((pid < 0) |
260 | ? PRTYS_PROCESSTREE : PRTYS_PROCESS, |
261 | 0, |
262 | (32 - val) % 32 - (prio & 0xFF), |
263 | abs(pid))) |
264 | ? -1 : 0; |
265 | } else /* if ((32 - val) % 32 == (prio & 0xFF)) */ { |
266 | /* Documentation claims one can change both class and basevalue, |
267 | * but I find it wrong. */ |
268 | /* Change class, but since delta == 0 denotes absolute 0, correct. */ |
269 | if (CheckOSError(DosSetPriority((pid < 0) |
270 | ? PRTYS_PROCESSTREE : PRTYS_PROCESS, |
271 | priors[(32 - val) >> 5] + 1, |
272 | 0, |
273 | abs(pid)))) |
274 | return -1; |
275 | if ( ((32 - val) % 32) == 0 ) return 0; |
276 | return CheckOSError(DosSetPriority((pid < 0) |
277 | ? PRTYS_PROCESSTREE : PRTYS_PROCESS, |
278 | 0, |
279 | (32 - val) % 32, |
280 | abs(pid))) |
281 | ? -1 : 0; |
282 | } |
283 | /* else return CheckOSError(DosSetPriority((pid < 0) */ |
284 | /* ? PRTYS_PROCESSTREE : PRTYS_PROCESS, */ |
285 | /* priors[(32 - val) >> 5] + 1, */ |
286 | /* (32 - val) % 32 - (prio & 0xFF), */ |
287 | /* abs(pid))) */ |
288 | /* ? -1 : 0; */ |
4633a7c4 |
289 | } |
290 | |
6f064249 |
291 | int |
292 | getpriority(int which /* ignored */, int pid) |
4633a7c4 |
293 | { |
294 | TIB *tib; |
295 | PIB *pib; |
6f064249 |
296 | ULONG rc, ret; |
297 | |
55497cff |
298 | if (!(_emx_env & 0x200)) return 0; /* Nop if not OS/2. */ |
6f064249 |
299 | /* DosGetInfoBlocks has old priority! */ |
300 | /* if (CheckOSError(DosGetInfoBlocks(&tib, &pib))) return -1; */ |
301 | /* if (pid != pib->pib_ulpid) { */ |
302 | ret = sys_prio(pid); |
303 | if (ret == PRIO_ERR) { |
304 | return -1; |
305 | } |
306 | /* } else */ |
307 | /* ret = tib->tib_ptib2->tib2_ulpri; */ |
308 | return (1 - priors[((ret >> 8) - 1)])*32 - (ret & 0xFF); |
4633a7c4 |
309 | } |
310 | |
311 | /*****************************************************************************/ |
312 | /* spawn */ |
2c2e0e8c |
313 | |
314 | /* There is no big sense to make it thread-specific, since signals |
315 | are delivered to thread 1 only. XXXX Maybe make it into an array? */ |
316 | static int spawn_pid; |
317 | static int spawn_killed; |
318 | |
319 | static Signal_t |
320 | spawn_sighandler(int sig) |
321 | { |
322 | /* Some programs do not arrange for the keyboard signals to be |
323 | delivered to them. We need to deliver the signal manually. */ |
324 | /* We may get a signal only if |
325 | a) kid does not receive keyboard signal: deliver it; |
326 | b) kid already died, and we get a signal. We may only hope |
327 | that the pid number was not reused. |
328 | */ |
329 | |
330 | if (spawn_killed) |
331 | sig = SIGKILL; /* Try harder. */ |
332 | kill(spawn_pid, sig); |
333 | spawn_killed = 1; |
334 | } |
72ea3524 |
335 | |
4633a7c4 |
336 | static int |
337 | result(int flag, int pid) |
338 | { |
339 | int r, status; |
340 | Signal_t (*ihand)(); /* place to save signal during system() */ |
341 | Signal_t (*qhand)(); /* place to save signal during system() */ |
760ac839 |
342 | #ifndef __EMX__ |
343 | RESULTCODES res; |
344 | int rpid; |
345 | #endif |
4633a7c4 |
346 | |
760ac839 |
347 | if (pid < 0 || flag != 0) |
4633a7c4 |
348 | return pid; |
349 | |
760ac839 |
350 | #ifdef __EMX__ |
2c2e0e8c |
351 | spawn_pid = pid; |
352 | spawn_killed = 0; |
353 | ihand = rsignal(SIGINT, &spawn_sighandler); |
354 | qhand = rsignal(SIGQUIT, &spawn_sighandler); |
c0c09dfd |
355 | do { |
356 | r = wait4pid(pid, &status, 0); |
357 | } while (r == -1 && errno == EINTR); |
72ea3524 |
358 | rsignal(SIGINT, ihand); |
359 | rsignal(SIGQUIT, qhand); |
4633a7c4 |
360 | |
6b88bc9c |
361 | PL_statusvalue = (U16)status; |
4633a7c4 |
362 | if (r < 0) |
363 | return -1; |
364 | return status & 0xFFFF; |
760ac839 |
365 | #else |
72ea3524 |
366 | ihand = rsignal(SIGINT, SIG_IGN); |
760ac839 |
367 | r = DosWaitChild(DCWA_PROCESS, DCWW_WAIT, &res, &rpid, pid); |
72ea3524 |
368 | rsignal(SIGINT, ihand); |
6b88bc9c |
369 | PL_statusvalue = res.codeResult << 8 | res.codeTerminate; |
760ac839 |
370 | if (r) |
371 | return -1; |
6b88bc9c |
372 | return PL_statusvalue; |
760ac839 |
373 | #endif |
4633a7c4 |
374 | } |
375 | |
491527d0 |
376 | #define EXECF_SPAWN 0 |
377 | #define EXECF_EXEC 1 |
378 | #define EXECF_TRUEEXEC 2 |
379 | #define EXECF_SPAWN_NOWAIT 3 |
380 | |
017f25f1 |
381 | /* const char* const ptypes[] = { "FS", "DOS", "VIO", "PM", "DETACH" }; */ |
382 | |
383 | static int |
384 | my_type() |
385 | { |
386 | int rc; |
387 | TIB *tib; |
388 | PIB *pib; |
389 | |
390 | if (!(_emx_env & 0x200)) return 1; /* not OS/2. */ |
391 | if (CheckOSError(DosGetInfoBlocks(&tib, &pib))) |
392 | return -1; |
393 | |
394 | return (pib->pib_ultype); |
395 | } |
396 | |
397 | static ULONG |
398 | file_type(char *path) |
399 | { |
400 | int rc; |
401 | ULONG apptype; |
402 | |
403 | if (!(_emx_env & 0x200)) |
404 | croak("file_type not implemented on DOS"); /* not OS/2. */ |
405 | if (CheckOSError(DosQueryAppType(path, &apptype))) { |
406 | switch (rc) { |
407 | case ERROR_FILE_NOT_FOUND: |
408 | case ERROR_PATH_NOT_FOUND: |
409 | return -1; |
410 | case ERROR_ACCESS_DENIED: /* Directory with this name found? */ |
411 | return -3; |
412 | default: /* Found, but not an |
413 | executable, or some other |
414 | read error. */ |
415 | return -2; |
416 | } |
417 | } |
418 | return apptype; |
419 | } |
420 | |
421 | static ULONG os2_mytype; |
422 | |
491527d0 |
423 | /* Spawn/exec a program, revert to shell if needed. */ |
6b88bc9c |
424 | /* global PL_Argv[] contains arguments. */ |
491527d0 |
425 | |
4633a7c4 |
426 | int |
2c2e0e8c |
427 | do_spawn_ve(really, flag, execf, inicmd) |
4633a7c4 |
428 | SV *really; |
491527d0 |
429 | U32 flag; |
430 | U32 execf; |
2c2e0e8c |
431 | char *inicmd; |
4633a7c4 |
432 | { |
dd96f567 |
433 | dTHR; |
491527d0 |
434 | int trueflag = flag; |
a97be121 |
435 | int rc, pass = 1; |
491527d0 |
436 | char *tmps; |
437 | char buf[256], *s = 0; |
438 | char *args[4]; |
439 | static char * fargs[4] |
440 | = { "/bin/sh", "-c", "\"$@\"", "spawn-via-shell", }; |
441 | char **argsp = fargs; |
442 | char nargs = 4; |
017f25f1 |
443 | int force_shell; |
491527d0 |
444 | |
4633a7c4 |
445 | if (flag == P_WAIT) |
446 | flag = P_NOWAIT; |
447 | |
491527d0 |
448 | retry: |
6b88bc9c |
449 | if (strEQ(PL_Argv[0],"/bin/sh")) |
450 | PL_Argv[0] = PL_sh_path; |
3bbf9c2b |
451 | |
6b88bc9c |
452 | if (PL_Argv[0][0] != '/' && PL_Argv[0][0] != '\\' |
453 | && !(PL_Argv[0][0] && PL_Argv[0][1] == ':' |
454 | && (PL_Argv[0][2] == '/' || PL_Argv[0][2] != '\\')) |
2c2e0e8c |
455 | ) /* will spawnvp use PATH? */ |
c0c09dfd |
456 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
760ac839 |
457 | /* We should check PERL_SH* and PERLLIB_* as well? */ |
6b88bc9c |
458 | if (!really || !*(tmps = SvPV(really, PL_na))) |
459 | tmps = PL_Argv[0]; |
017f25f1 |
460 | |
461 | reread: |
462 | force_shell = 0; |
463 | if (_emx_env & 0x200) { /* OS/2. */ |
464 | int type = file_type(tmps); |
465 | type_again: |
466 | if (type == -1) { /* Not found */ |
467 | errno = ENOENT; |
468 | rc = -1; |
469 | goto do_script; |
470 | } |
471 | else if (type == -2) { /* Not an EXE */ |
472 | errno = ENOEXEC; |
473 | rc = -1; |
474 | goto do_script; |
475 | } |
476 | else if (type == -3) { /* Is a directory? */ |
477 | /* Special-case this */ |
478 | char tbuf[512]; |
479 | int l = strlen(tmps); |
480 | |
481 | if (l + 5 <= sizeof tbuf) { |
482 | strcpy(tbuf, tmps); |
483 | strcpy(tbuf + l, ".exe"); |
484 | type = file_type(tbuf); |
485 | if (type >= -3) |
486 | goto type_again; |
487 | } |
488 | |
489 | errno = ENOEXEC; |
490 | rc = -1; |
491 | goto do_script; |
492 | } |
493 | switch (type & 7) { |
494 | /* Ignore WINDOWCOMPAT and FAPI, start them the same type we are. */ |
495 | case FAPPTYP_WINDOWAPI: |
496 | { |
497 | if (os2_mytype != 3) { /* not PM */ |
498 | if (flag == P_NOWAIT) |
499 | flag = P_PM; |
500 | else if ((flag & 7) != P_PM && (flag & 7) != P_SESSION) |
501 | warn("Starting PM process with flag=%d, mytype=%d", |
502 | flag, os2_mytype); |
503 | } |
504 | } |
505 | break; |
506 | case FAPPTYP_NOTWINDOWCOMPAT: |
507 | { |
508 | if (os2_mytype != 0) { /* not full screen */ |
509 | if (flag == P_NOWAIT) |
510 | flag = P_SESSION; |
511 | else if ((flag & 7) != P_SESSION) |
512 | warn("Starting Full Screen process with flag=%d, mytype=%d", |
513 | flag, os2_mytype); |
514 | } |
515 | } |
516 | break; |
517 | case FAPPTYP_NOTSPEC: |
518 | /* Let the shell handle this... */ |
519 | force_shell = 1; |
520 | goto doshell_args; |
521 | break; |
522 | } |
523 | } |
524 | |
491527d0 |
525 | #if 0 |
6b88bc9c |
526 | rc = result(trueflag, spawnvp(flag,tmps,PL_Argv)); |
491527d0 |
527 | #else |
528 | if (execf == EXECF_TRUEEXEC) |
6b88bc9c |
529 | rc = execvp(tmps,PL_Argv); |
491527d0 |
530 | else if (execf == EXECF_EXEC) |
6b88bc9c |
531 | rc = spawnvp(trueflag | P_OVERLAY,tmps,PL_Argv); |
491527d0 |
532 | else if (execf == EXECF_SPAWN_NOWAIT) |
017f25f1 |
533 | rc = spawnvp(flag,tmps,PL_Argv); |
491527d0 |
534 | else /* EXECF_SPAWN */ |
535 | rc = result(trueflag, |
017f25f1 |
536 | spawnvp(flag,tmps,PL_Argv)); |
491527d0 |
537 | #endif |
2c2e0e8c |
538 | if (rc < 0 && pass == 1 |
6b88bc9c |
539 | && (tmps == PL_Argv[0])) { /* Cannot transfer `really' via shell. */ |
017f25f1 |
540 | do_script: |
541 | { |
a97be121 |
542 | int err = errno; |
543 | |
2c2e0e8c |
544 | if (err == ENOENT || err == ENOEXEC) { |
545 | /* No such file, or is a script. */ |
546 | /* Try adding script extensions to the file name, and |
547 | search on PATH. */ |
6b88bc9c |
548 | char *scr = find_script(PL_Argv[0], TRUE, NULL, 0); |
2c2e0e8c |
549 | |
550 | if (scr) { |
551 | FILE *file = fopen(scr, "r"); |
552 | char *s = 0, *s1; |
553 | |
6b88bc9c |
554 | PL_Argv[0] = scr; |
2c2e0e8c |
555 | if (!file) |
556 | goto panic_file; |
017f25f1 |
557 | if (!fgets(buf, sizeof buf, file)) { /* Empty... */ |
558 | int l = strlen(scr); |
559 | |
560 | buf[0] = 0; |
2c2e0e8c |
561 | fclose(file); |
017f25f1 |
562 | /* Special case: maybe from -Zexe build, so |
563 | there is an executable around (contrary to |
564 | documentation, DosQueryAppType sometimes (?) |
565 | does not append ".exe", so we could have |
566 | reached this place). */ |
567 | if (l + 5 < 512) { /* size of buffer in find_script */ |
568 | strcpy(scr + l, ".exe"); |
569 | if (PerlLIO_stat(scr,&PL_statbuf) >= 0 |
570 | && !S_ISDIR(PL_statbuf.st_mode)) { |
571 | /* Found */ |
572 | tmps = scr; |
573 | pass++; |
574 | goto reread; |
575 | } else { |
576 | scr[l] = 0; |
577 | } |
578 | } |
2c2e0e8c |
579 | } |
580 | if (fclose(file) != 0) { /* Failure */ |
581 | panic_file: |
582 | warn("Error reading \"%s\": %s", |
583 | scr, Strerror(errno)); |
584 | buf[0] = 0; /* Not #! */ |
585 | goto doshell_args; |
586 | } |
587 | if (buf[0] == '#') { |
588 | if (buf[1] == '!') |
589 | s = buf + 2; |
590 | } else if (buf[0] == 'e') { |
591 | if (strnEQ(buf, "extproc", 7) |
592 | && isSPACE(buf[7])) |
593 | s = buf + 8; |
594 | } else if (buf[0] == 'E') { |
595 | if (strnEQ(buf, "EXTPROC", 7) |
596 | && isSPACE(buf[7])) |
597 | s = buf + 8; |
598 | } |
599 | if (!s) { |
600 | buf[0] = 0; /* Not #! */ |
601 | goto doshell_args; |
602 | } |
603 | |
604 | s1 = s; |
605 | nargs = 0; |
606 | argsp = args; |
607 | while (1) { |
608 | /* Do better than pdksh: allow a few args, |
609 | strip trailing whitespace. */ |
610 | while (isSPACE(*s)) |
611 | s++; |
612 | if (*s == 0) |
613 | break; |
614 | if (nargs == 4) { |
615 | nargs = -1; |
616 | break; |
617 | } |
618 | args[nargs++] = s; |
619 | while (*s && !isSPACE(*s)) |
620 | s++; |
621 | if (*s == 0) |
622 | break; |
623 | *s++ = 0; |
624 | } |
625 | if (nargs == -1) { |
626 | warn("Too many args on %.*s line of \"%s\"", |
627 | s1 - buf, buf, scr); |
628 | nargs = 4; |
629 | argsp = fargs; |
630 | } |
631 | doshell_args: |
632 | { |
6b88bc9c |
633 | char **a = PL_Argv; |
2c2e0e8c |
634 | char *exec_args[2]; |
635 | |
017f25f1 |
636 | if (force_shell |
637 | || (!buf[0] && file)) { /* File without magic */ |
2c2e0e8c |
638 | /* In fact we tried all what pdksh would |
639 | try. There is no point in calling |
640 | pdksh, we may just emulate its logic. */ |
641 | char *shell = getenv("EXECSHELL"); |
642 | char *shell_opt = NULL; |
643 | |
644 | if (!shell) { |
645 | char *s; |
646 | |
647 | shell_opt = "/c"; |
648 | shell = getenv("OS2_SHELL"); |
649 | if (inicmd) { /* No spaces at start! */ |
650 | s = inicmd; |
651 | while (*s && !isSPACE(*s)) { |
652 | if (*s++ = '/') { |
653 | inicmd = NULL; /* Cannot use */ |
654 | break; |
655 | } |
656 | } |
657 | } |
658 | if (!inicmd) { |
6b88bc9c |
659 | s = PL_Argv[0]; |
2c2e0e8c |
660 | while (*s) { |
661 | /* Dosish shells will choke on slashes |
662 | in paths, fortunately, this is |
663 | important for zeroth arg only. */ |
664 | if (*s == '/') |
665 | *s = '\\'; |
666 | s++; |
667 | } |
491527d0 |
668 | } |
491527d0 |
669 | } |
2c2e0e8c |
670 | /* If EXECSHELL is set, we do not set */ |
671 | |
672 | if (!shell) |
673 | shell = ((_emx_env & 0x200) |
674 | ? "c:/os2/cmd.exe" |
675 | : "c:/command.com"); |
676 | nargs = shell_opt ? 2 : 1; /* shell file args */ |
677 | exec_args[0] = shell; |
678 | exec_args[1] = shell_opt; |
679 | argsp = exec_args; |
680 | if (nargs == 2 && inicmd) { |
681 | /* Use the original cmd line */ |
682 | /* XXXX This is good only until we refuse |
683 | quoted arguments... */ |
6b88bc9c |
684 | PL_Argv[0] = inicmd; |
685 | PL_Argv[1] = Nullch; |
491527d0 |
686 | } |
2c2e0e8c |
687 | } else if (!buf[0] && inicmd) { /* No file */ |
688 | /* Start with the original cmdline. */ |
689 | /* XXXX This is good only until we refuse |
690 | quoted arguments... */ |
691 | |
6b88bc9c |
692 | PL_Argv[0] = inicmd; |
693 | PL_Argv[1] = Nullch; |
2c2e0e8c |
694 | nargs = 2; /* shell -c */ |
695 | } |
696 | |
697 | while (a[1]) /* Get to the end */ |
698 | a++; |
699 | a++; /* Copy finil NULL too */ |
6b88bc9c |
700 | while (a >= PL_Argv) { |
701 | *(a + nargs) = *a; /* PL_Argv was preallocated to be |
2c2e0e8c |
702 | long enough. */ |
703 | a--; |
491527d0 |
704 | } |
2c2e0e8c |
705 | while (nargs-- >= 0) |
6b88bc9c |
706 | PL_Argv[nargs] = argsp[nargs]; |
2c2e0e8c |
707 | /* Enable pathless exec if #! (as pdksh). */ |
708 | pass = (buf[0] == '#' ? 2 : 3); |
709 | goto retry; |
e29f6e02 |
710 | } |
711 | } |
2c2e0e8c |
712 | /* Not found: restore errno */ |
491527d0 |
713 | errno = err; |
2c2e0e8c |
714 | } |
017f25f1 |
715 | } |
a97be121 |
716 | } else if (rc < 0 && pass == 2 && errno == ENOENT) { /* File not found */ |
6b88bc9c |
717 | char *no_dir = strrchr(PL_Argv[0], '/'); |
2c2e0e8c |
718 | |
719 | /* Do as pdksh port does: if not found with /, try without |
720 | path. */ |
721 | if (no_dir) { |
6b88bc9c |
722 | PL_Argv[0] = no_dir + 1; |
2c2e0e8c |
723 | pass++; |
e29f6e02 |
724 | goto retry; |
725 | } |
726 | } |
6b88bc9c |
727 | if (rc < 0 && PL_dowarn) |
491527d0 |
728 | warn("Can't %s \"%s\": %s\n", |
729 | ((execf != EXECF_EXEC && execf != EXECF_TRUEEXEC) |
730 | ? "spawn" : "exec"), |
a97be121 |
731 | PL_Argv[0], Strerror(errno)); |
491527d0 |
732 | if (rc < 0 && (execf != EXECF_SPAWN_NOWAIT) |
733 | && ((trueflag & 0xFF) == P_WAIT)) |
734 | rc = 255 << 8; /* Emulate the fork(). */ |
735 | |
736 | return rc; |
737 | } |
738 | |
2c2e0e8c |
739 | /* Array spawn. */ |
491527d0 |
740 | int |
741 | do_aspawn(really,mark,sp) |
742 | SV *really; |
743 | register SV **mark; |
744 | register SV **sp; |
745 | { |
746 | dTHR; |
747 | register char **a; |
748 | char *tmps = NULL; |
749 | int rc; |
750 | int flag = P_WAIT, trueflag, err, secondtry = 0; |
751 | |
752 | if (sp > mark) { |
6b88bc9c |
753 | New(1301,PL_Argv, sp - mark + 3, char*); |
754 | a = PL_Argv; |
491527d0 |
755 | |
756 | if (mark < sp && SvNIOKp(*(mark+1)) && !SvPOKp(*(mark+1))) { |
757 | ++mark; |
758 | flag = SvIVx(*mark); |
759 | } |
760 | |
761 | while (++mark <= sp) { |
762 | if (*mark) |
6b88bc9c |
763 | *a++ = SvPVx(*mark, PL_na); |
491527d0 |
764 | else |
765 | *a++ = ""; |
766 | } |
767 | *a = Nullch; |
768 | |
2c2e0e8c |
769 | rc = do_spawn_ve(really, flag, EXECF_SPAWN, NULL); |
4633a7c4 |
770 | } else |
771 | rc = -1; |
772 | do_execfree(); |
773 | return rc; |
774 | } |
775 | |
491527d0 |
776 | /* Try converting 1-arg form to (usually shell-less) multi-arg form. */ |
4633a7c4 |
777 | int |
760ac839 |
778 | do_spawn2(cmd, execf) |
4633a7c4 |
779 | char *cmd; |
760ac839 |
780 | int execf; |
4633a7c4 |
781 | { |
782 | register char **a; |
783 | register char *s; |
784 | char flags[10]; |
3bbf9c2b |
785 | char *shell, *copt, *news = NULL; |
2c2e0e8c |
786 | int rc, err, seenspace = 0; |
e29f6e02 |
787 | char fullcmd[MAXNAMLEN + 1]; |
4633a7c4 |
788 | |
c0c09dfd |
789 | #ifdef TRYSHELL |
790 | if ((shell = getenv("EMXSHELL")) != NULL) |
791 | copt = "-c"; |
792 | else if ((shell = getenv("SHELL")) != NULL) |
4633a7c4 |
793 | copt = "-c"; |
794 | else if ((shell = getenv("COMSPEC")) != NULL) |
795 | copt = "/C"; |
796 | else |
797 | shell = "cmd.exe"; |
c0c09dfd |
798 | #else |
799 | /* Consensus on perl5-porters is that it is _very_ important to |
800 | have a shell which will not change between computers with the |
801 | same architecture, to avoid "action on a distance". |
802 | And to have simple build, this shell should be sh. */ |
6b88bc9c |
803 | shell = PL_sh_path; |
c0c09dfd |
804 | copt = "-c"; |
805 | #endif |
806 | |
807 | while (*cmd && isSPACE(*cmd)) |
808 | cmd++; |
4633a7c4 |
809 | |
3bbf9c2b |
810 | if (strnEQ(cmd,"/bin/sh",7) && isSPACE(cmd[7])) { |
6b88bc9c |
811 | STRLEN l = strlen(PL_sh_path); |
3bbf9c2b |
812 | |
2cc2f81f |
813 | New(1302, news, strlen(cmd) - 7 + l + 1, char); |
6b88bc9c |
814 | strcpy(news, PL_sh_path); |
3bbf9c2b |
815 | strcpy(news + l, cmd + 7); |
816 | cmd = news; |
817 | } |
818 | |
4633a7c4 |
819 | /* save an extra exec if possible */ |
820 | /* see if there are shell metacharacters in it */ |
821 | |
c0c09dfd |
822 | if (*cmd == '.' && isSPACE(cmd[1])) |
823 | goto doshell; |
824 | |
825 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) |
826 | goto doshell; |
827 | |
828 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
829 | if (*s == '=') |
830 | goto doshell; |
831 | |
4633a7c4 |
832 | for (s = cmd; *s; s++) { |
c0c09dfd |
833 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
3bbf9c2b |
834 | if (*s == '\n' && s[1] == '\0') { |
4633a7c4 |
835 | *s = '\0'; |
836 | break; |
a0914d8e |
837 | } else if (*s == '\\' && !seenspace) { |
838 | continue; /* Allow backslashes in names */ |
4633a7c4 |
839 | } |
491527d0 |
840 | /* We do not convert this to do_spawn_ve since shell |
841 | should be smart enough to start itself gloriously. */ |
c0c09dfd |
842 | doshell: |
760ac839 |
843 | if (execf == EXECF_TRUEEXEC) |
2c2e0e8c |
844 | rc = execl(shell,shell,copt,cmd,(char*)0); |
760ac839 |
845 | else if (execf == EXECF_EXEC) |
2c2e0e8c |
846 | rc = spawnl(P_OVERLAY,shell,shell,copt,cmd,(char*)0); |
72ea3524 |
847 | else if (execf == EXECF_SPAWN_NOWAIT) |
2c2e0e8c |
848 | rc = spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0); |
849 | else { |
850 | /* In the ak code internal P_NOWAIT is P_WAIT ??? */ |
851 | rc = result(P_WAIT, |
852 | spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0)); |
6b88bc9c |
853 | if (rc < 0 && PL_dowarn) |
2c2e0e8c |
854 | warn("Can't %s \"%s\": %s", |
855 | (execf == EXECF_SPAWN ? "spawn" : "exec"), |
856 | shell, Strerror(errno)); |
857 | if (rc < 0) rc = 255 << 8; /* Emulate the fork(). */ |
858 | } |
859 | if (news) |
860 | Safefree(news); |
c0c09dfd |
861 | return rc; |
a0914d8e |
862 | } else if (*s == ' ' || *s == '\t') { |
863 | seenspace = 1; |
4633a7c4 |
864 | } |
865 | } |
c0c09dfd |
866 | |
491527d0 |
867 | /* cmd="a" may lead to "sh", "-c", "\"$@\"", "a", "a.cmd", NULL */ |
6b88bc9c |
868 | New(1303,PL_Argv, (s - cmd + 11) / 2, char*); |
869 | PL_Cmd = savepvn(cmd, s-cmd); |
870 | a = PL_Argv; |
871 | for (s = PL_Cmd; *s;) { |
4633a7c4 |
872 | while (*s && isSPACE(*s)) s++; |
873 | if (*s) |
874 | *(a++) = s; |
875 | while (*s && !isSPACE(*s)) s++; |
876 | if (*s) |
877 | *s++ = '\0'; |
878 | } |
879 | *a = Nullch; |
6b88bc9c |
880 | if (PL_Argv[0]) |
2c2e0e8c |
881 | rc = do_spawn_ve(NULL, 0, execf, cmd); |
491527d0 |
882 | else |
4633a7c4 |
883 | rc = -1; |
2c2e0e8c |
884 | if (news) |
885 | Safefree(news); |
4633a7c4 |
886 | do_execfree(); |
887 | return rc; |
888 | } |
889 | |
760ac839 |
890 | int |
891 | do_spawn(cmd) |
892 | char *cmd; |
893 | { |
894 | return do_spawn2(cmd, EXECF_SPAWN); |
895 | } |
896 | |
72ea3524 |
897 | int |
898 | do_spawn_nowait(cmd) |
899 | char *cmd; |
900 | { |
901 | return do_spawn2(cmd, EXECF_SPAWN_NOWAIT); |
902 | } |
903 | |
760ac839 |
904 | bool |
905 | do_exec(cmd) |
906 | char *cmd; |
907 | { |
017f25f1 |
908 | do_spawn2(cmd, EXECF_EXEC); |
909 | return FALSE; |
760ac839 |
910 | } |
911 | |
912 | bool |
913 | os2exec(cmd) |
914 | char *cmd; |
915 | { |
916 | return do_spawn2(cmd, EXECF_TRUEEXEC); |
917 | } |
918 | |
3bbf9c2b |
919 | PerlIO * |
920 | my_syspopen(cmd,mode) |
c0c09dfd |
921 | char *cmd; |
922 | char *mode; |
923 | { |
72ea3524 |
924 | #ifndef USE_POPEN |
925 | |
926 | int p[2]; |
927 | register I32 this, that, newfd; |
928 | register I32 pid, rc; |
3bbf9c2b |
929 | PerlIO *res; |
930 | SV *sv; |
72ea3524 |
931 | |
72ea3524 |
932 | /* `this' is what we use in the parent, `that' in the child. */ |
933 | this = (*mode == 'w'); |
934 | that = !this; |
6b88bc9c |
935 | if (PL_tainting) { |
72ea3524 |
936 | taint_env(); |
937 | taint_proper("Insecure %s%s", "EXEC"); |
938 | } |
c2267164 |
939 | if (pipe(p) < 0) |
940 | return Nullfp; |
72ea3524 |
941 | /* Now we need to spawn the child. */ |
942 | newfd = dup(*mode == 'r'); /* Preserve std* */ |
943 | if (p[that] != (*mode == 'r')) { |
944 | dup2(p[that], *mode == 'r'); |
945 | close(p[that]); |
946 | } |
947 | /* Where is `this' and newfd now? */ |
948 | fcntl(p[this], F_SETFD, FD_CLOEXEC); |
949 | fcntl(newfd, F_SETFD, FD_CLOEXEC); |
950 | pid = do_spawn_nowait(cmd); |
951 | if (newfd != (*mode == 'r')) { |
952 | dup2(newfd, *mode == 'r'); /* Return std* back. */ |
953 | close(newfd); |
954 | } |
491527d0 |
955 | if (p[that] == (*mode == 'r')) |
956 | close(p[that]); |
72ea3524 |
957 | if (pid == -1) { |
958 | close(p[this]); |
959 | return NULL; |
960 | } |
961 | if (p[that] < p[this]) { |
962 | dup2(p[this], p[that]); |
963 | close(p[this]); |
964 | p[this] = p[that]; |
965 | } |
6b88bc9c |
966 | sv = *av_fetch(PL_fdpid,p[this],TRUE); |
72ea3524 |
967 | (void)SvUPGRADE(sv,SVt_IV); |
968 | SvIVX(sv) = pid; |
6b88bc9c |
969 | PL_forkprocess = pid; |
72ea3524 |
970 | return PerlIO_fdopen(p[this], mode); |
3bbf9c2b |
971 | |
72ea3524 |
972 | #else /* USE_POPEN */ |
973 | |
974 | PerlIO *res; |
975 | SV *sv; |
976 | |
977 | # ifdef TRYSHELL |
3bbf9c2b |
978 | res = popen(cmd, mode); |
72ea3524 |
979 | # else |
c0c09dfd |
980 | char *shell = getenv("EMXSHELL"); |
3bbf9c2b |
981 | |
6b88bc9c |
982 | my_setenv("EMXSHELL", PL_sh_path); |
c0c09dfd |
983 | res = popen(cmd, mode); |
984 | my_setenv("EMXSHELL", shell); |
72ea3524 |
985 | # endif |
6b88bc9c |
986 | sv = *av_fetch(PL_fdpid, PerlIO_fileno(res), TRUE); |
3bbf9c2b |
987 | (void)SvUPGRADE(sv,SVt_IV); |
988 | SvIVX(sv) = -1; /* A cooky. */ |
989 | return res; |
72ea3524 |
990 | |
991 | #endif /* USE_POPEN */ |
992 | |
c0c09dfd |
993 | } |
994 | |
3bbf9c2b |
995 | /******************************************************************/ |
4633a7c4 |
996 | |
997 | #ifndef HAS_FORK |
998 | int |
999 | fork(void) |
1000 | { |
1001 | die(no_func, "Unsupported function fork"); |
1002 | errno = EINVAL; |
1003 | return -1; |
1004 | } |
1005 | #endif |
1006 | |
3bbf9c2b |
1007 | /*******************************************************************/ |
4633a7c4 |
1008 | /* not implemented in EMX 0.9a */ |
1009 | |
1010 | void * ctermid(x) { return 0; } |
eacfb5f1 |
1011 | |
1012 | #ifdef MYTTYNAME /* was not in emx0.9a */ |
4633a7c4 |
1013 | void * ttyname(x) { return 0; } |
eacfb5f1 |
1014 | #endif |
4633a7c4 |
1015 | |
3bbf9c2b |
1016 | /******************************************************************/ |
760ac839 |
1017 | /* my socket forwarders - EMX lib only provides static forwarders */ |
1018 | |
1019 | static HMODULE htcp = 0; |
1020 | |
1021 | static void * |
1022 | tcp0(char *name) |
1023 | { |
1024 | static BYTE buf[20]; |
1025 | PFN fcn; |
55497cff |
1026 | |
1027 | if (!(_emx_env & 0x200)) croak("%s requires OS/2", name); /* Die if not OS/2. */ |
760ac839 |
1028 | if (!htcp) |
1029 | DosLoadModule(buf, sizeof buf, "tcp32dll", &htcp); |
1030 | if (htcp && DosQueryProcAddr(htcp, 0, name, &fcn) == 0) |
1031 | return (void *) ((void * (*)(void)) fcn) (); |
1032 | return 0; |
1033 | } |
1034 | |
1035 | static void |
1036 | tcp1(char *name, int arg) |
1037 | { |
1038 | static BYTE buf[20]; |
1039 | PFN fcn; |
55497cff |
1040 | |
1041 | if (!(_emx_env & 0x200)) croak("%s requires OS/2", name); /* Die if not OS/2. */ |
760ac839 |
1042 | if (!htcp) |
1043 | DosLoadModule(buf, sizeof buf, "tcp32dll", &htcp); |
1044 | if (htcp && DosQueryProcAddr(htcp, 0, name, &fcn) == 0) |
1045 | ((void (*)(int)) fcn) (arg); |
1046 | } |
1047 | |
1048 | void * gethostent() { return tcp0("GETHOSTENT"); } |
1049 | void * getnetent() { return tcp0("GETNETENT"); } |
1050 | void * getprotoent() { return tcp0("GETPROTOENT"); } |
1051 | void * getservent() { return tcp0("GETSERVENT"); } |
1052 | void sethostent(x) { tcp1("SETHOSTENT", x); } |
1053 | void setnetent(x) { tcp1("SETNETENT", x); } |
1054 | void setprotoent(x) { tcp1("SETPROTOENT", x); } |
1055 | void setservent(x) { tcp1("SETSERVENT", x); } |
1056 | void endhostent() { tcp0("ENDHOSTENT"); } |
1057 | void endnetent() { tcp0("ENDNETENT"); } |
1058 | void endprotoent() { tcp0("ENDPROTOENT"); } |
1059 | void endservent() { tcp0("ENDSERVENT"); } |
1060 | |
1061 | /*****************************************************************************/ |
1062 | /* not implemented in C Set++ */ |
1063 | |
1064 | #ifndef __EMX__ |
1065 | int setuid(x) { errno = EINVAL; return -1; } |
1066 | int setgid(x) { errno = EINVAL; return -1; } |
1067 | #endif |
4633a7c4 |
1068 | |
1069 | /*****************************************************************************/ |
1070 | /* stat() hack for char/block device */ |
1071 | |
1072 | #if OS2_STAT_HACK |
1073 | |
1074 | /* First attempt used DosQueryFSAttach which crashed the system when |
1075 | used with 5.001. Now just look for /dev/. */ |
1076 | |
1077 | int |
1078 | os2_stat(char *name, struct stat *st) |
1079 | { |
1080 | static int ino = SHRT_MAX; |
1081 | |
1082 | if (stricmp(name, "/dev/con") != 0 |
1083 | && stricmp(name, "/dev/tty") != 0) |
1084 | return stat(name, st); |
1085 | |
1086 | memset(st, 0, sizeof *st); |
1087 | st->st_mode = S_IFCHR|0666; |
1088 | st->st_ino = (ino-- & 0x7FFF); |
1089 | st->st_nlink = 1; |
1090 | return 0; |
1091 | } |
1092 | |
1093 | #endif |
c0c09dfd |
1094 | |
760ac839 |
1095 | #ifdef USE_PERL_SBRK |
c0c09dfd |
1096 | |
760ac839 |
1097 | /* SBRK() emulation, mostly moved to malloc.c. */ |
c0c09dfd |
1098 | |
1099 | void * |
760ac839 |
1100 | sys_alloc(int size) { |
1101 | void *got; |
1102 | APIRET rc = DosAllocMem(&got, size, PAG_COMMIT | PAG_WRITE); |
1103 | |
c0c09dfd |
1104 | if (rc == ERROR_NOT_ENOUGH_MEMORY) { |
1105 | return (void *) -1; |
1106 | } else if ( rc ) die("Got an error from DosAllocMem: %li", (long)rc); |
760ac839 |
1107 | return got; |
c0c09dfd |
1108 | } |
760ac839 |
1109 | |
1110 | #endif /* USE_PERL_SBRK */ |
c0c09dfd |
1111 | |
1112 | /* tmp path */ |
1113 | |
1114 | char *tmppath = TMPPATH1; |
1115 | |
1116 | void |
1117 | settmppath() |
1118 | { |
1119 | char *p = getenv("TMP"), *tpath; |
1120 | int len; |
1121 | |
1122 | if (!p) p = getenv("TEMP"); |
1123 | if (!p) return; |
1124 | len = strlen(p); |
1125 | tpath = (char *)malloc(len + strlen(TMPPATH1) + 2); |
1126 | strcpy(tpath, p); |
1127 | tpath[len] = '/'; |
1128 | strcpy(tpath + len + 1, TMPPATH1); |
1129 | tmppath = tpath; |
1130 | } |
7a2f0d5b |
1131 | |
1132 | #include "XSUB.h" |
1133 | |
1134 | XS(XS_File__Copy_syscopy) |
1135 | { |
1136 | dXSARGS; |
1137 | if (items < 2 || items > 3) |
1138 | croak("Usage: File::Copy::syscopy(src,dst,flag=0)"); |
1139 | { |
6b88bc9c |
1140 | char * src = (char *)SvPV(ST(0),PL_na); |
1141 | char * dst = (char *)SvPV(ST(1),PL_na); |
7a2f0d5b |
1142 | U32 flag; |
1143 | int RETVAL, rc; |
1144 | |
1145 | if (items < 3) |
1146 | flag = 0; |
1147 | else { |
1148 | flag = (unsigned long)SvIV(ST(2)); |
1149 | } |
1150 | |
6f064249 |
1151 | RETVAL = !CheckOSError(DosCopy(src, dst, flag)); |
7a2f0d5b |
1152 | ST(0) = sv_newmortal(); |
1153 | sv_setiv(ST(0), (IV)RETVAL); |
1154 | } |
1155 | XSRETURN(1); |
1156 | } |
1157 | |
017f25f1 |
1158 | #include "patchlevel.h" |
1159 | |
6f064249 |
1160 | char * |
1161 | mod2fname(sv) |
1162 | SV *sv; |
1163 | { |
1164 | static char fname[9]; |
760ac839 |
1165 | int pos = 6, len, avlen; |
1166 | unsigned int sum = 0; |
6f064249 |
1167 | AV *av; |
1168 | SV *svp; |
1169 | char *s; |
1170 | |
1171 | if (!SvROK(sv)) croak("Not a reference given to mod2fname"); |
1172 | sv = SvRV(sv); |
1173 | if (SvTYPE(sv) != SVt_PVAV) |
1174 | croak("Not array reference given to mod2fname"); |
760ac839 |
1175 | |
1176 | avlen = av_len((AV*)sv); |
1177 | if (avlen < 0) |
6f064249 |
1178 | croak("Empty array reference given to mod2fname"); |
760ac839 |
1179 | |
6b88bc9c |
1180 | s = SvPV(*av_fetch((AV*)sv, avlen, FALSE), PL_na); |
6f064249 |
1181 | strncpy(fname, s, 8); |
760ac839 |
1182 | len = strlen(s); |
1183 | if (len < 6) pos = len; |
1184 | while (*s) { |
1185 | sum = 33 * sum + *(s++); /* Checksumming first chars to |
1186 | * get the capitalization into c.s. */ |
1187 | } |
1188 | avlen --; |
1189 | while (avlen >= 0) { |
6b88bc9c |
1190 | s = SvPV(*av_fetch((AV*)sv, avlen, FALSE), PL_na); |
760ac839 |
1191 | while (*s) { |
1192 | sum = 33 * sum + *(s++); /* 7 is primitive mod 13. */ |
1193 | } |
1194 | avlen --; |
1195 | } |
3aefca04 |
1196 | #ifdef USE_THREADS |
1197 | sum++; /* Avoid conflict of DLLs in memory. */ |
1198 | #endif |
017f25f1 |
1199 | sum += PATCHLEVEL * 200 + SUBVERSION * 2; /* */ |
760ac839 |
1200 | fname[pos] = 'A' + (sum % 26); |
1201 | fname[pos + 1] = 'A' + (sum / 26 % 26); |
1202 | fname[pos + 2] = '\0'; |
6f064249 |
1203 | return (char *)fname; |
1204 | } |
1205 | |
1206 | XS(XS_DynaLoader_mod2fname) |
1207 | { |
1208 | dXSARGS; |
1209 | if (items != 1) |
1210 | croak("Usage: DynaLoader::mod2fname(sv)"); |
1211 | { |
1212 | SV * sv = ST(0); |
1213 | char * RETVAL; |
1214 | |
1215 | RETVAL = mod2fname(sv); |
1216 | ST(0) = sv_newmortal(); |
1217 | sv_setpv((SV*)ST(0), RETVAL); |
1218 | } |
1219 | XSRETURN(1); |
1220 | } |
1221 | |
1222 | char * |
1223 | os2error(int rc) |
1224 | { |
1225 | static char buf[300]; |
1226 | ULONG len; |
1227 | |
55497cff |
1228 | if (!(_emx_env & 0x200)) return ""; /* Nop if not OS/2. */ |
6f064249 |
1229 | if (rc == 0) |
1230 | return NULL; |
1231 | if (DosGetMessage(NULL, 0, buf, sizeof buf - 1, rc, "OSO001.MSG", &len)) |
1232 | sprintf(buf, "OS/2 system error code %d=0x%x", rc, rc); |
1233 | else |
1234 | buf[len] = '\0'; |
017f25f1 |
1235 | if (len > 0 && buf[len - 1] == '\n') |
1236 | buf[len - 1] = '\0'; |
1237 | if (len > 1 && buf[len - 2] == '\r') |
1238 | buf[len - 2] = '\0'; |
1239 | if (len > 2 && buf[len - 3] == '.') |
1240 | buf[len - 3] = '\0'; |
6f064249 |
1241 | return buf; |
1242 | } |
1243 | |
760ac839 |
1244 | char * |
1245 | perllib_mangle(char *s, unsigned int l) |
1246 | { |
1247 | static char *newp, *oldp; |
1248 | static int newl, oldl, notfound; |
1249 | static char ret[STATIC_FILE_LENGTH+1]; |
1250 | |
1251 | if (!newp && !notfound) { |
1252 | newp = getenv("PERLLIB_PREFIX"); |
1253 | if (newp) { |
ff68c719 |
1254 | char *s; |
1255 | |
760ac839 |
1256 | oldp = newp; |
89078e0f |
1257 | while (*newp && !isSPACE(*newp) && *newp != ';') { |
760ac839 |
1258 | newp++; oldl++; /* Skip digits. */ |
1259 | } |
1260 | while (*newp && (isSPACE(*newp) || *newp == ';')) { |
1261 | newp++; /* Skip whitespace. */ |
1262 | } |
1263 | newl = strlen(newp); |
1264 | if (newl == 0 || oldl == 0) { |
1265 | die("Malformed PERLLIB_PREFIX"); |
1266 | } |
ff68c719 |
1267 | strcpy(ret, newp); |
1268 | s = ret; |
1269 | while (*s) { |
1270 | if (*s == '\\') *s = '/'; |
1271 | s++; |
1272 | } |
760ac839 |
1273 | } else { |
1274 | notfound = 1; |
1275 | } |
1276 | } |
1277 | if (!newp) { |
1278 | return s; |
1279 | } |
1280 | if (l == 0) { |
1281 | l = strlen(s); |
1282 | } |
3bbf9c2b |
1283 | if (l < oldl || strnicmp(oldp, s, oldl) != 0) { |
760ac839 |
1284 | return s; |
1285 | } |
1286 | if (l + newl - oldl > STATIC_FILE_LENGTH || newl > STATIC_FILE_LENGTH) { |
1287 | die("Malformed PERLLIB_PREFIX"); |
1288 | } |
89078e0f |
1289 | strcpy(ret + newl, s + oldl); |
760ac839 |
1290 | return ret; |
1291 | } |
6f064249 |
1292 | |
1293 | extern void dlopen(); |
1294 | void *fakedl = &dlopen; /* Pull in dynaloading part. */ |
3bbf9c2b |
1295 | |
1296 | #define sys_is_absolute(path) ( isALPHA((path)[0]) && (path)[1] == ':' \ |
1297 | && ((path)[2] == '/' || (path)[2] == '\\')) |
1298 | #define sys_is_rooted _fnisabs |
1299 | #define sys_is_relative _fnisrel |
1300 | #define current_drive _getdrive |
1301 | |
1302 | #undef chdir /* Was _chdir2. */ |
1303 | #define sys_chdir(p) (chdir(p) == 0) |
1304 | #define change_drive(d) (_chdrive(d), (current_drive() == toupper(d))) |
1305 | |
1306 | XS(XS_Cwd_current_drive) |
1307 | { |
1308 | dXSARGS; |
1309 | if (items != 0) |
1310 | croak("Usage: Cwd::current_drive()"); |
1311 | { |
1312 | char RETVAL; |
1313 | |
1314 | RETVAL = current_drive(); |
1315 | ST(0) = sv_newmortal(); |
1316 | sv_setpvn(ST(0), (char *)&RETVAL, 1); |
1317 | } |
1318 | XSRETURN(1); |
1319 | } |
1320 | |
1321 | XS(XS_Cwd_sys_chdir) |
1322 | { |
1323 | dXSARGS; |
1324 | if (items != 1) |
1325 | croak("Usage: Cwd::sys_chdir(path)"); |
1326 | { |
6b88bc9c |
1327 | char * path = (char *)SvPV(ST(0),PL_na); |
3bbf9c2b |
1328 | bool RETVAL; |
1329 | |
1330 | RETVAL = sys_chdir(path); |
54310121 |
1331 | ST(0) = boolSV(RETVAL); |
3bbf9c2b |
1332 | if (SvREFCNT(ST(0))) sv_2mortal(ST(0)); |
1333 | } |
1334 | XSRETURN(1); |
1335 | } |
1336 | |
1337 | XS(XS_Cwd_change_drive) |
1338 | { |
1339 | dXSARGS; |
1340 | if (items != 1) |
1341 | croak("Usage: Cwd::change_drive(d)"); |
1342 | { |
6b88bc9c |
1343 | char d = (char)*SvPV(ST(0),PL_na); |
3bbf9c2b |
1344 | bool RETVAL; |
1345 | |
1346 | RETVAL = change_drive(d); |
54310121 |
1347 | ST(0) = boolSV(RETVAL); |
3bbf9c2b |
1348 | if (SvREFCNT(ST(0))) sv_2mortal(ST(0)); |
1349 | } |
1350 | XSRETURN(1); |
1351 | } |
1352 | |
1353 | XS(XS_Cwd_sys_is_absolute) |
1354 | { |
1355 | dXSARGS; |
1356 | if (items != 1) |
1357 | croak("Usage: Cwd::sys_is_absolute(path)"); |
1358 | { |
6b88bc9c |
1359 | char * path = (char *)SvPV(ST(0),PL_na); |
3bbf9c2b |
1360 | bool RETVAL; |
1361 | |
1362 | RETVAL = sys_is_absolute(path); |
54310121 |
1363 | ST(0) = boolSV(RETVAL); |
3bbf9c2b |
1364 | if (SvREFCNT(ST(0))) sv_2mortal(ST(0)); |
1365 | } |
1366 | XSRETURN(1); |
1367 | } |
1368 | |
1369 | XS(XS_Cwd_sys_is_rooted) |
1370 | { |
1371 | dXSARGS; |
1372 | if (items != 1) |
1373 | croak("Usage: Cwd::sys_is_rooted(path)"); |
1374 | { |
6b88bc9c |
1375 | char * path = (char *)SvPV(ST(0),PL_na); |
3bbf9c2b |
1376 | bool RETVAL; |
1377 | |
1378 | RETVAL = sys_is_rooted(path); |
54310121 |
1379 | ST(0) = boolSV(RETVAL); |
3bbf9c2b |
1380 | if (SvREFCNT(ST(0))) sv_2mortal(ST(0)); |
1381 | } |
1382 | XSRETURN(1); |
1383 | } |
1384 | |
1385 | XS(XS_Cwd_sys_is_relative) |
1386 | { |
1387 | dXSARGS; |
1388 | if (items != 1) |
1389 | croak("Usage: Cwd::sys_is_relative(path)"); |
1390 | { |
6b88bc9c |
1391 | char * path = (char *)SvPV(ST(0),PL_na); |
3bbf9c2b |
1392 | bool RETVAL; |
1393 | |
1394 | RETVAL = sys_is_relative(path); |
54310121 |
1395 | ST(0) = boolSV(RETVAL); |
3bbf9c2b |
1396 | if (SvREFCNT(ST(0))) sv_2mortal(ST(0)); |
1397 | } |
1398 | XSRETURN(1); |
1399 | } |
1400 | |
1401 | XS(XS_Cwd_sys_cwd) |
1402 | { |
1403 | dXSARGS; |
1404 | if (items != 0) |
1405 | croak("Usage: Cwd::sys_cwd()"); |
1406 | { |
1407 | char p[MAXPATHLEN]; |
1408 | char * RETVAL; |
1409 | RETVAL = _getcwd2(p, MAXPATHLEN); |
1410 | ST(0) = sv_newmortal(); |
1411 | sv_setpv((SV*)ST(0), RETVAL); |
1412 | } |
1413 | XSRETURN(1); |
1414 | } |
1415 | |
1416 | XS(XS_Cwd_sys_abspath) |
1417 | { |
1418 | dXSARGS; |
1419 | if (items < 1 || items > 2) |
1420 | croak("Usage: Cwd::sys_abspath(path, dir = NULL)"); |
1421 | { |
6b88bc9c |
1422 | char * path = (char *)SvPV(ST(0),PL_na); |
3bbf9c2b |
1423 | char * dir; |
1424 | char p[MAXPATHLEN]; |
1425 | char * RETVAL; |
1426 | |
1427 | if (items < 2) |
1428 | dir = NULL; |
1429 | else { |
6b88bc9c |
1430 | dir = (char *)SvPV(ST(1),PL_na); |
3bbf9c2b |
1431 | } |
1432 | if (path[0] == '.' && (path[1] == '/' || path[1] == '\\')) { |
1433 | path += 2; |
1434 | } |
1435 | if (dir == NULL) { |
1436 | if (_abspath(p, path, MAXPATHLEN) == 0) { |
1437 | RETVAL = p; |
1438 | } else { |
1439 | RETVAL = NULL; |
1440 | } |
1441 | } else { |
1442 | /* Absolute with drive: */ |
1443 | if ( sys_is_absolute(path) ) { |
1444 | if (_abspath(p, path, MAXPATHLEN) == 0) { |
1445 | RETVAL = p; |
1446 | } else { |
1447 | RETVAL = NULL; |
1448 | } |
1449 | } else if (path[0] == '/' || path[0] == '\\') { |
1450 | /* Rooted, but maybe on different drive. */ |
1451 | if (isALPHA(dir[0]) && dir[1] == ':' ) { |
1452 | char p1[MAXPATHLEN]; |
1453 | |
1454 | /* Need to prepend the drive. */ |
1455 | p1[0] = dir[0]; |
1456 | p1[1] = dir[1]; |
1457 | Copy(path, p1 + 2, strlen(path) + 1, char); |
1458 | RETVAL = p; |
1459 | if (_abspath(p, p1, MAXPATHLEN) == 0) { |
1460 | RETVAL = p; |
1461 | } else { |
1462 | RETVAL = NULL; |
1463 | } |
1464 | } else if (_abspath(p, path, MAXPATHLEN) == 0) { |
1465 | RETVAL = p; |
1466 | } else { |
1467 | RETVAL = NULL; |
1468 | } |
1469 | } else { |
1470 | /* Either path is relative, or starts with a drive letter. */ |
1471 | /* If the path starts with a drive letter, then dir is |
1472 | relevant only if |
1473 | a/b) it is absolute/x:relative on the same drive. |
1474 | c) path is on current drive, and dir is rooted |
1475 | In all the cases it is safe to drop the drive part |
1476 | of the path. */ |
1477 | if ( !sys_is_relative(path) ) { |
1478 | int is_drived; |
1479 | |
1480 | if ( ( ( sys_is_absolute(dir) |
1481 | || (isALPHA(dir[0]) && dir[1] == ':' |
1482 | && strnicmp(dir, path,1) == 0)) |
1483 | && strnicmp(dir, path,1) == 0) |
1484 | || ( !(isALPHA(dir[0]) && dir[1] == ':') |
1485 | && toupper(path[0]) == current_drive())) { |
1486 | path += 2; |
1487 | } else if (_abspath(p, path, MAXPATHLEN) == 0) { |
1488 | RETVAL = p; goto done; |
1489 | } else { |
1490 | RETVAL = NULL; goto done; |
1491 | } |
1492 | } |
1493 | { |
1494 | /* Need to prepend the absolute path of dir. */ |
1495 | char p1[MAXPATHLEN]; |
1496 | |
1497 | if (_abspath(p1, dir, MAXPATHLEN) == 0) { |
1498 | int l = strlen(p1); |
1499 | |
1500 | if (p1[ l - 1 ] != '/') { |
1501 | p1[ l ] = '/'; |
1502 | l++; |
1503 | } |
1504 | Copy(path, p1 + l, strlen(path) + 1, char); |
1505 | if (_abspath(p, p1, MAXPATHLEN) == 0) { |
1506 | RETVAL = p; |
1507 | } else { |
1508 | RETVAL = NULL; |
1509 | } |
1510 | } else { |
1511 | RETVAL = NULL; |
1512 | } |
1513 | } |
1514 | done: |
1515 | } |
1516 | } |
1517 | ST(0) = sv_newmortal(); |
1518 | sv_setpv((SV*)ST(0), RETVAL); |
1519 | } |
1520 | XSRETURN(1); |
1521 | } |
72ea3524 |
1522 | typedef APIRET (*PELP)(PSZ path, ULONG type); |
1523 | |
1524 | APIRET |
1525 | ExtLIBPATH(ULONG ord, PSZ path, ULONG type) |
1526 | { |
1527 | loadByOrd(ord); /* Guarantied to load or die! */ |
1528 | return (*(PELP)ExtFCN[ord])(path, type); |
1529 | } |
3bbf9c2b |
1530 | |
72ea3524 |
1531 | #define extLibpath(type) \ |
1532 | (CheckOSError(ExtLIBPATH(ORD_QUERY_ELP, to, ((type) ? END_LIBPATH \ |
1533 | : BEGIN_LIBPATH))) \ |
3bbf9c2b |
1534 | ? NULL : to ) |
1535 | |
1536 | #define extLibpath_set(p,type) \ |
72ea3524 |
1537 | (!CheckOSError(ExtLIBPATH(ORD_SET_ELP, (p), ((type) ? END_LIBPATH \ |
1538 | : BEGIN_LIBPATH)))) |
3bbf9c2b |
1539 | |
1540 | XS(XS_Cwd_extLibpath) |
1541 | { |
1542 | dXSARGS; |
1543 | if (items < 0 || items > 1) |
1544 | croak("Usage: Cwd::extLibpath(type = 0)"); |
1545 | { |
1546 | bool type; |
1547 | char to[1024]; |
1548 | U32 rc; |
1549 | char * RETVAL; |
1550 | |
1551 | if (items < 1) |
1552 | type = 0; |
1553 | else { |
1554 | type = (int)SvIV(ST(0)); |
1555 | } |
1556 | |
1557 | RETVAL = extLibpath(type); |
1558 | ST(0) = sv_newmortal(); |
1559 | sv_setpv((SV*)ST(0), RETVAL); |
1560 | } |
1561 | XSRETURN(1); |
1562 | } |
1563 | |
1564 | XS(XS_Cwd_extLibpath_set) |
1565 | { |
1566 | dXSARGS; |
1567 | if (items < 1 || items > 2) |
1568 | croak("Usage: Cwd::extLibpath_set(s, type = 0)"); |
1569 | { |
6b88bc9c |
1570 | char * s = (char *)SvPV(ST(0),PL_na); |
3bbf9c2b |
1571 | bool type; |
1572 | U32 rc; |
1573 | bool RETVAL; |
1574 | |
1575 | if (items < 2) |
1576 | type = 0; |
1577 | else { |
1578 | type = (int)SvIV(ST(1)); |
1579 | } |
1580 | |
1581 | RETVAL = extLibpath_set(s, type); |
54310121 |
1582 | ST(0) = boolSV(RETVAL); |
3bbf9c2b |
1583 | if (SvREFCNT(ST(0))) sv_2mortal(ST(0)); |
1584 | } |
1585 | XSRETURN(1); |
1586 | } |
1587 | |
1588 | int |
1589 | Xs_OS2_init() |
1590 | { |
1591 | char *file = __FILE__; |
1592 | { |
1593 | GV *gv; |
55497cff |
1594 | |
1595 | if (_emx_env & 0x200) { /* OS/2 */ |
1596 | newXS("File::Copy::syscopy", XS_File__Copy_syscopy, file); |
1597 | newXS("Cwd::extLibpath", XS_Cwd_extLibpath, file); |
1598 | newXS("Cwd::extLibpath_set", XS_Cwd_extLibpath_set, file); |
1599 | } |
3bbf9c2b |
1600 | newXS("DynaLoader::mod2fname", XS_DynaLoader_mod2fname, file); |
1601 | newXS("Cwd::current_drive", XS_Cwd_current_drive, file); |
1602 | newXS("Cwd::sys_chdir", XS_Cwd_sys_chdir, file); |
1603 | newXS("Cwd::change_drive", XS_Cwd_change_drive, file); |
1604 | newXS("Cwd::sys_is_absolute", XS_Cwd_sys_is_absolute, file); |
1605 | newXS("Cwd::sys_is_rooted", XS_Cwd_sys_is_rooted, file); |
1606 | newXS("Cwd::sys_is_relative", XS_Cwd_sys_is_relative, file); |
1607 | newXS("Cwd::sys_cwd", XS_Cwd_sys_cwd, file); |
1608 | newXS("Cwd::sys_abspath", XS_Cwd_sys_abspath, file); |
3bbf9c2b |
1609 | gv = gv_fetchpv("OS2::is_aout", TRUE, SVt_PV); |
1610 | GvMULTI_on(gv); |
1611 | #ifdef PERL_IS_AOUT |
1612 | sv_setiv(GvSV(gv), 1); |
1613 | #endif |
1614 | } |
1615 | } |
1616 | |
1617 | OS2_Perl_data_t OS2_Perl_data; |
1618 | |
1619 | void |
aa689395 |
1620 | Perl_OS2_init(char **env) |
3bbf9c2b |
1621 | { |
1622 | char *shell; |
1623 | |
18f739ee |
1624 | MALLOC_INIT; |
3bbf9c2b |
1625 | settmppath(); |
1626 | OS2_Perl_data.xs_init = &Xs_OS2_init; |
aa689395 |
1627 | if (environ == NULL) { |
1628 | environ = env; |
1629 | } |
3bbf9c2b |
1630 | if ( (shell = getenv("PERL_SH_DRIVE")) ) { |
6b88bc9c |
1631 | New(1304, PL_sh_path, strlen(SH_PATH) + 1, char); |
1632 | strcpy(PL_sh_path, SH_PATH); |
1633 | PL_sh_path[0] = shell[0]; |
3bbf9c2b |
1634 | } else if ( (shell = getenv("PERL_SH_DIR")) ) { |
ff68c719 |
1635 | int l = strlen(shell), i; |
3bbf9c2b |
1636 | if (shell[l-1] == '/' || shell[l-1] == '\\') { |
1637 | l--; |
1638 | } |
6b88bc9c |
1639 | New(1304, PL_sh_path, l + 8, char); |
1640 | strncpy(PL_sh_path, shell, l); |
1641 | strcpy(PL_sh_path + l, "/sh.exe"); |
ff68c719 |
1642 | for (i = 0; i < l; i++) { |
6b88bc9c |
1643 | if (PL_sh_path[i] == '\\') PL_sh_path[i] = '/'; |
ff68c719 |
1644 | } |
3bbf9c2b |
1645 | } |
dd96f567 |
1646 | MUTEX_INIT(&start_thread_mutex); |
017f25f1 |
1647 | os2_mytype = my_type(); /* Do it before morphing. Needed? */ |
3bbf9c2b |
1648 | } |
1649 | |
55497cff |
1650 | #undef tmpnam |
1651 | #undef tmpfile |
1652 | |
1653 | char * |
1654 | my_tmpnam (char *str) |
1655 | { |
1656 | char *p = getenv("TMP"), *tpath; |
1657 | int len; |
1658 | |
1659 | if (!p) p = getenv("TEMP"); |
1660 | tpath = tempnam(p, "pltmp"); |
1661 | if (str && tpath) { |
1662 | strcpy(str, tpath); |
1663 | return str; |
1664 | } |
1665 | return tpath; |
1666 | } |
1667 | |
1668 | FILE * |
1669 | my_tmpfile () |
1670 | { |
1671 | struct stat s; |
1672 | |
1673 | stat(".", &s); |
1674 | if (s.st_mode & S_IWOTH) { |
1675 | return tmpfile(); |
1676 | } |
1677 | return fopen(my_tmpnam(NULL), "w+b"); /* Race condition, but |
1678 | grants TMP. */ |
1679 | } |
367f3c24 |
1680 | |
1681 | #undef flock |
1682 | |
1683 | /* This code was contributed by Rocco Caputo. */ |
1684 | int |
dd96f567 |
1685 | my_flock(int handle, int o) |
367f3c24 |
1686 | { |
1687 | FILELOCK rNull, rFull; |
1688 | ULONG timeout, handle_type, flag_word; |
1689 | APIRET rc; |
1690 | int blocking, shared; |
1691 | static int use_my = -1; |
1692 | |
1693 | if (use_my == -1) { |
1694 | char *s = getenv("USE_PERL_FLOCK"); |
1695 | if (s) |
1696 | use_my = atoi(s); |
1697 | else |
1698 | use_my = 1; |
1699 | } |
1700 | if (!(_emx_env & 0x200) || !use_my) |
dd96f567 |
1701 | return flock(handle, o); /* Delegate to EMX. */ |
367f3c24 |
1702 | |
1703 | // is this a file? |
1704 | if ((DosQueryHType(handle, &handle_type, &flag_word) != 0) || |
1705 | (handle_type & 0xFF)) |
1706 | { |
1707 | errno = EBADF; |
1708 | return -1; |
1709 | } |
1710 | // set lock/unlock ranges |
1711 | rNull.lOffset = rNull.lRange = rFull.lOffset = 0; |
1712 | rFull.lRange = 0x7FFFFFFF; |
1713 | // set timeout for blocking |
dd96f567 |
1714 | timeout = ((blocking = !(o & LOCK_NB))) ? 100 : 1; |
367f3c24 |
1715 | // shared or exclusive? |
dd96f567 |
1716 | shared = (o & LOCK_SH) ? 1 : 0; |
367f3c24 |
1717 | // do not block the unlock |
dd96f567 |
1718 | if (o & (LOCK_UN | LOCK_SH | LOCK_EX)) { |
367f3c24 |
1719 | rc = DosSetFileLocks(handle, &rFull, &rNull, timeout, shared); |
1720 | switch (rc) { |
1721 | case 0: |
1722 | errno = 0; |
1723 | return 0; |
1724 | case ERROR_INVALID_HANDLE: |
1725 | errno = EBADF; |
1726 | return -1; |
1727 | case ERROR_SHARING_BUFFER_EXCEEDED: |
1728 | errno = ENOLCK; |
1729 | return -1; |
1730 | case ERROR_LOCK_VIOLATION: |
1731 | break; // not an error |
1732 | case ERROR_INVALID_PARAMETER: |
1733 | case ERROR_ATOMIC_LOCK_NOT_SUPPORTED: |
1734 | case ERROR_READ_LOCKS_NOT_SUPPORTED: |
1735 | errno = EINVAL; |
1736 | return -1; |
1737 | case ERROR_INTERRUPT: |
1738 | errno = EINTR; |
1739 | return -1; |
1740 | default: |
1741 | errno = EINVAL; |
1742 | return -1; |
1743 | } |
1744 | } |
1745 | // lock may block |
dd96f567 |
1746 | if (o & (LOCK_SH | LOCK_EX)) { |
367f3c24 |
1747 | // for blocking operations |
1748 | for (;;) { |
1749 | rc = |
1750 | DosSetFileLocks( |
1751 | handle, |
1752 | &rNull, |
1753 | &rFull, |
1754 | timeout, |
1755 | shared |
1756 | ); |
1757 | switch (rc) { |
1758 | case 0: |
1759 | errno = 0; |
1760 | return 0; |
1761 | case ERROR_INVALID_HANDLE: |
1762 | errno = EBADF; |
1763 | return -1; |
1764 | case ERROR_SHARING_BUFFER_EXCEEDED: |
1765 | errno = ENOLCK; |
1766 | return -1; |
1767 | case ERROR_LOCK_VIOLATION: |
1768 | if (!blocking) { |
1769 | errno = EWOULDBLOCK; |
1770 | return -1; |
1771 | } |
1772 | break; |
1773 | case ERROR_INVALID_PARAMETER: |
1774 | case ERROR_ATOMIC_LOCK_NOT_SUPPORTED: |
1775 | case ERROR_READ_LOCKS_NOT_SUPPORTED: |
1776 | errno = EINVAL; |
1777 | return -1; |
1778 | case ERROR_INTERRUPT: |
1779 | errno = EINTR; |
1780 | return -1; |
1781 | default: |
1782 | errno = EINVAL; |
1783 | return -1; |
1784 | } |
1785 | // give away timeslice |
1786 | DosSleep(1); |
1787 | } |
1788 | } |
1789 | |
1790 | errno = 0; |
1791 | return 0; |
1792 | } |