source: vendor/python/2.5/RISCOS/Modules/riscosmodule.c

Last change on this file was 3225, checked in by bird, 18 years ago

Python 2.5
File size: 16.0 KB
Line 
1/* RISCOS module implementation */
2
3#include "oslib/osfscontrol.h"
4#include "oslib/osgbpb.h"
5#include "oslib/os.h"
6#include "oslib/osfile.h"
7#include "unixstuff.h"
8
9#include <sys/fcntl.h>
10
11#include "Python.h"
12#include "structseq.h"
13
14#include <errno.h>
15
16static os_error *e;
17
18/*static PyObject *RiscosError;*/ /* Exception riscos.error */
19
20static PyObject *riscos_error(char *s)
21{
22 PyErr_SetString(PyExc_OSError, s);
23 return NULL;
24}
25
26static PyObject *riscos_oserror(void)
27{
28 return riscos_error(e->errmess);
29}
30
31
32/* RISCOS file commands */
33
34static PyObject *
35riscos_remove(PyObject *self, PyObject *args)
36{
37 char *path1;
38 if (!PyArg_ParseTuple(args, "s:remove", &path1)) return NULL;
39 if (remove(path1)) return PyErr_SetFromErrno(PyExc_OSError);
40 Py_INCREF(Py_None);
41 return Py_None;
42}
43
44static PyObject *
45riscos_rename(PyObject *self, PyObject *args)
46{
47 char *path1, *path2;
48 if (!PyArg_ParseTuple(args, "ss:rename", &path1, &path2))
49 return NULL;
50 if (rename(path1,path2)) return PyErr_SetFromErrno(PyExc_OSError);
51 Py_INCREF(Py_None);
52 return Py_None;
53}
54
55static PyObject *
56riscos_system(PyObject *self, PyObject *args)
57{
58 char *command;
59 if (!PyArg_ParseTuple(args, "s:system", &command)) return NULL;
60 return PyInt_FromLong(system(command));
61}
62
63static PyObject *
64riscos_chdir(PyObject *self, PyObject *args)
65{
66 char *path;
67 if (!PyArg_ParseTuple(args, "s:chdir", &path)) return NULL;
68 e=xosfscontrol_dir(path);
69 if(e) return riscos_oserror();
70 Py_INCREF(Py_None);
71 return Py_None;
72}
73
74static PyObject *
75canon(char *path)
76{
77 int len;
78 PyObject *obj;
79 char *buf;
80 e=xosfscontrol_canonicalise_path(path,0,0,0,0,&len);
81 if(e) return riscos_oserror();
82 obj=PyString_FromStringAndSize(NULL,-len);
83 if(obj==NULL) return NULL;
84 buf=PyString_AsString(obj);
85 e=xosfscontrol_canonicalise_path(path,buf,0,0,1-len,&len);
86 if(len!=1) return riscos_error("Error expanding path");
87 if(!e) return obj;
88 Py_DECREF(obj);
89 return riscos_oserror();
90}
91
92static PyObject *
93riscos_getcwd(PyObject *self, PyObject *unused)
94{
95 return canon("@");
96}
97
98static PyObject *
99riscos_expand(PyObject *self, PyObject *args)
100{
101 char *path;
102 if (!PyArg_ParseTuple(args, "s:expand", &path)) return NULL;
103 return canon(path);
104}
105
106static PyObject *
107riscos_mkdir(PyObject *self, PyObject *args)
108{
109 char *path;
110 int mode;
111 if (!PyArg_ParseTuple(args, "s|i:mkdir", &path, &mode)) return NULL;
112 e=xosfile_create_dir(path,0);
113 if(e) return riscos_oserror();
114 Py_INCREF(Py_None);
115 return Py_None;
116}
117
118static PyObject *
119riscos_listdir(PyObject *self, PyObject *args)
120{
121 char *path,buf[256];
122 PyObject *d, *v;
123 int c=0,count;
124 if (!PyArg_ParseTuple(args, "s:listdir", &path)) return NULL;
125 d=PyList_New(0);
126 if(!d) return NULL;
127 for(;;)
128 { e=xosgbpb_dir_entries(path,(osgbpb_string_list*)buf,
129 1,c,256,0,&count,&c);
130 if(e)
131 { Py_DECREF(d);return riscos_oserror();
132 }
133 if(count)
134 { v=PyString_FromString(buf);
135 if(!v) { Py_DECREF(d);return 0;}
136 if(PyList_Append(d,v)) {Py_DECREF(d);Py_DECREF(v);return 0;}
137 }
138 if(c==-1) break;
139 }
140 return d;
141}
142
143PyDoc_STRVAR(stat_result__doc__,
144"stat_result: Result from stat or lstat.\n\n\
145This object may be accessed either as a tuple of\n\
146 (mode,ino,dev,nlink,uid,gid,size,atime,mtime,ctime)\n\
147or via the attributes st_mode, st_ino, st_dev, st_nlink, st_uid, and so on.\n\
148\n\
149RiscOS: The fields st_ftype, st_attrs, and st_obtype are also available.\n\
150\n\
151See os.stat for more information.");
152
153static PyStructSequence_Field stat_result_fields[] = {
154 { "st_mode", "protection bits" },
155 { "st_ino", "inode" },
156 { "st_dev", "device" },
157 { "st_nlink", "number of hard links" },
158 { "st_uid", "user ID of owner" },
159 { "st_gid", "group ID of owner" },
160 { "st_size", "total size, in bytes" },
161 { "st_atime", "time of last access" },
162 { "st_mtime", "time of last modification" },
163 { "st_ctime", "time of last change" },
164 { "st_ftype", "file type" },
165 { "st_attrs", "attributes" },
166 { "st_obtype", "object type" },
167 { 0 }
168};
169
170static PyStructSequence_Desc stat_result_desc = {
171 "riscos.stat_result",
172 stat_result__doc__,
173 stat_result_fields,
174 13
175};
176
177static PyTypeObject StatResultType;
178
179static PyObject *
180riscos_stat(PyObject *self, PyObject *args)
181{
182 PyObject *v;
183 char *path;
184 int ob,len;
185 bits t=0;
186 bits ld,ex,at,ft,mode;
187 if (!PyArg_ParseTuple(args, "s:stat", &path)) return NULL;
188 e=xosfile_read_stamped_no_path(path,&ob,&ld,&ex,&len,&at,&ft);
189 if(e) return riscos_oserror();
190 switch (ob)
191 { case osfile_IS_FILE:mode=0100000;break; /* OCTAL */
192 case osfile_IS_DIR:mode=040000;break;
193 case osfile_IS_IMAGE:mode=0140000;break;
194 default:return riscos_error("Not found");
195 }
196 if(ft!=-1) t=unixtime(ld,ex);
197 mode|=(at&7)<<6;
198 mode|=((at&112)*9)>>4;
199
200 v = PyStructSequence_New(&StatResultType);
201
202 PyStructSequence_SET_ITEM(v, 0,
203 PyInt_FromLong((long) mode)); /*st_mode*/
204 PyStructSequence_SET_ITEM(v, 1, PyInt_FromLong((long) 0)); /*st_ino*/
205 PyStructSequence_SET_ITEM(v, 2, PyInt_FromLong((long) 0)); /*st_dev*/
206 PyStructSequence_SET_ITEM(v, 3, PyInt_FromLong((long) 0)); /*st_nlink*/
207 PyStructSequence_SET_ITEM(v, 4, PyInt_FromLong((long) 0)); /*st_uid*/
208 PyStructSequence_SET_ITEM(v, 5, PyInt_FromLong((long) 0)); /*st_gid*/
209 PyStructSequence_SET_ITEM(v, 6,
210 PyInt_FromLong((long) len)); /*st_size*/
211 PyStructSequence_SET_ITEM(v, 7, PyInt_FromLong((long) t)); /*st_atime*/
212 PyStructSequence_SET_ITEM(v, 8, PyInt_FromLong((long) t)); /*st_mtime*/
213 PyStructSequence_SET_ITEM(v, 9, PyInt_FromLong((long) t)); /*st_ctime*/
214 PyStructSequence_SET_ITEM(v, 10,
215 PyInt_FromLong((long) ft)); /*file type*/
216 PyStructSequence_SET_ITEM(v, 11,
217 PyInt_FromLong((long) at)); /*attributes*/
218 PyStructSequence_SET_ITEM(v, 12,
219 PyInt_FromLong((long) ob)); /*object type*/
220
221 if (PyErr_Occurred()) {
222 Py_DECREF(v);
223 return NULL;
224 }
225
226 return v;
227}
228
229static PyObject *
230riscos_chmod(PyObject *self,PyObject *args)
231{
232 char *path;
233 bits mode;
234 bits attr;
235 attr=(mode&0x700)>>8;
236 attr|=(mode&7)<<4;
237 if (!PyArg_ParseTuple(args, "si:chmod", &path,(int*)&mode)) return NULL;
238 e=xosfile_write_attr(path,attr);
239 if(e) return riscos_oserror();
240 Py_INCREF(Py_None);
241 return Py_None;
242}
243
244
245static PyObject *
246riscos_utime(PyObject *self, PyObject *args)
247{
248 char *path;
249 long atime, mtime;
250 PyObject* arg;
251
252 if (!PyArg_ParseTuple(args, "sO:utime", &path, &arg))
253 return NULL;
254
255 if (arg == Py_None) {
256 /* optional time values not given */
257 Py_BEGIN_ALLOW_THREADS
258 e=xosfile_stamp(path);
259 Py_END_ALLOW_THREADS
260 if(e) return riscos_oserror();
261 }
262 else if (!PyArg_Parse(arg, "(ll)", &atime, &mtime)) {
263 PyErr_SetString(PyExc_TypeError,
264 "utime() arg 2 must be a tuple (atime, mtime)");
265 return NULL;
266 }
267 else {
268 /* catalogue info*/
269 fileswitch_object_type obj_type;
270 bits load_addr, exec_addr;
271 int size;
272 fileswitch_attr attr;
273
274 /* read old catalogue info */
275 Py_BEGIN_ALLOW_THREADS
276 e=xosfile_read_no_path(path, &obj_type, &load_addr, &exec_addr, &size, &attr);
277 Py_END_ALLOW_THREADS
278 if(e) return riscos_oserror();
279
280 /* check if load and exec address really contain filetype and date */
281 if ( (load_addr & 0xFFF00000U) != 0xFFF00000U)
282 return riscos_error("can't set date for object with load and exec addresses");
283
284 /* convert argument mtime to RISC OS load and exec address */
285 if(acorntime(&exec_addr, &load_addr, (time_t) mtime))
286 return riscos_oserror();
287
288 /* write new load and exec address */
289 Py_BEGIN_ALLOW_THREADS
290 e = xosfile_write(path, load_addr, exec_addr, attr);
291 Py_END_ALLOW_THREADS
292 if(e) return riscos_oserror();
293 }
294
295 Py_INCREF(Py_None);
296 return Py_None;
297}
298
299static PyObject *
300riscos_settype(PyObject *self, PyObject *args)
301{
302 char *path,*name;
303 int type;
304 if (!PyArg_ParseTuple(args, "si:settype", &path,&type))
305 {
306 PyErr_Clear();
307 if (!PyArg_ParseTuple(args, "ss:settype", &path,&name)) return NULL;
308 e=xosfscontrol_file_type_from_string(name,(bits*)&type);
309 if(e) return riscos_oserror();
310 }
311 e=xosfile_set_type(path,type);
312 if(e) return riscos_oserror();
313 Py_INCREF(Py_None);
314 return Py_None;
315}
316
317static PyObject *
318riscos_getenv(PyObject *self, PyObject *args)
319{
320 char *name,*value;
321 if(!PyArg_ParseTuple(args,"s:getenv",&name)) return NULL;
322 value=getenv(name);
323 if(value) return PyString_FromString(value);
324 Py_INCREF(Py_None);
325 return Py_None;
326}
327
328static PyObject *
329riscos_putenv(PyObject *self, PyObject *args)
330{
331 char *name,*value;
332 int len;
333 os_var_type type=os_VARTYPE_LITERAL_STRING;
334 if(!PyArg_ParseTuple(args,"ss|i:putenv",&name,&value,&type)) return NULL;
335 if(type!=os_VARTYPE_STRING&&type!=os_VARTYPE_MACRO&&type!=os_VARTYPE_EXPANDED
336 &&type!=os_VARTYPE_LITERAL_STRING)
337 return riscos_error("Bad putenv type");
338 len=strlen(value);
339 if(type!=os_VARTYPE_LITERAL_STRING) len++;
340 /* Other types need null terminator! */
341 e=xos_set_var_val(name,(byte*)value,len,0,type,0,0);
342 if(e) return riscos_oserror();
343 Py_INCREF(Py_None);
344 return Py_None;
345}
346
347static PyObject *
348riscos_delenv(PyObject *self, PyObject *args)
349{
350 char *name;
351 if(!PyArg_ParseTuple(args,"s:delenv",&name)) return NULL;
352 e=xos_set_var_val(name,NULL,-1,0,0,0,0);
353 if(e) return riscos_oserror();
354 Py_INCREF(Py_None);
355 return Py_None;
356}
357
358static PyObject *
359riscos_getenvdict(PyObject *self, PyObject *args)
360{
361 PyObject *dict;
362 char value[257];
363 char *which="*";
364 int size;
365 char *context=NULL;
366 if(!PyArg_ParseTuple(args,"|s:getenvdict",&which)) return NULL;
367 dict = PyDict_New();
368 if (!dict) return NULL;
369 /* XXX This part ignores errors */
370 while(!xos_read_var_val(which,value,sizeof(value)-1,(int)context,
371 os_VARTYPE_EXPANDED,&size,(int *)&context,0))
372 { PyObject *v;
373 value[size]='\0';
374 v = PyString_FromString(value);
375 if (v == NULL) continue;
376 PyDict_SetItemString(dict, context, v);
377 Py_DECREF(v);
378 }
379 return dict;
380}
381
382static PyMethodDef riscos_methods[] = {
383
384 {"unlink", riscos_remove, METH_VARARGS},
385 {"remove", riscos_remove, METH_VARARGS},
386 {"rename", riscos_rename, METH_VARARGS},
387 {"system", riscos_system, METH_VARARGS},
388 {"rmdir", riscos_remove, METH_VARARGS},
389 {"chdir", riscos_chdir, METH_VARARGS},
390 {"getcwd", riscos_getcwd, METH_NOARGS},
391 {"expand", riscos_expand, METH_VARARGS},
392 {"mkdir", riscos_mkdir, METH_VARARGS},
393 {"listdir", riscos_listdir, METH_VARARGS},
394 {"stat", riscos_stat, METH_VARARGS},
395 {"lstat", riscos_stat, METH_VARARGS},
396 {"chmod", riscos_chmod, METH_VARARGS},
397 {"utime", riscos_utime, METH_VARARGS},
398 {"settype", riscos_settype, METH_VARARGS},
399 {"getenv", riscos_getenv, METH_VARARGS},
400 {"putenv", riscos_putenv, METH_VARARGS},
401 {"delenv", riscos_delenv, METH_VARARGS},
402 {"getenvdict", riscos_getenvdict, METH_VARARGS},
403 {NULL, NULL} /* Sentinel */
404};
405
406static int
407ins(PyObject *module, char *symbol, long value)
408{
409 return PyModule_AddIntConstant(module, symbol, value);
410}
411
412
413static int
414all_ins(PyObject *d)
415{
416#ifdef F_OK
417 if (ins(d, "F_OK", (long)F_OK)) return -1;
418#endif
419#ifdef R_OK
420 if (ins(d, "R_OK", (long)R_OK)) return -1;
421#endif
422#ifdef W_OK
423 if (ins(d, "W_OK", (long)W_OK)) return -1;
424#endif
425#ifdef X_OK
426 if (ins(d, "X_OK", (long)X_OK)) return -1;
427#endif
428#ifdef NGROUPS_MAX
429 if (ins(d, "NGROUPS_MAX", (long)NGROUPS_MAX)) return -1;
430#endif
431#ifdef TMP_MAX
432 if (ins(d, "TMP_MAX", (long)TMP_MAX)) return -1;
433#endif
434#ifdef WCONTINUED
435 if (ins(d, "WCONTINUED", (long)WCONTINUED)) return -1;
436#endif
437#ifdef WNOHANG
438 if (ins(d, "WNOHANG", (long)WNOHANG)) return -1;
439#endif
440#ifdef WUNTRACED
441 if (ins(d, "WUNTRACED", (long)WUNTRACED)) return -1;
442#endif
443#ifdef O_RDONLY
444 if (ins(d, "O_RDONLY", (long)O_RDONLY)) return -1;
445#endif
446#ifdef O_WRONLY
447 if (ins(d, "O_WRONLY", (long)O_WRONLY)) return -1;
448#endif
449#ifdef O_RDWR
450 if (ins(d, "O_RDWR", (long)O_RDWR)) return -1;
451#endif
452#ifdef O_NDELAY
453 if (ins(d, "O_NDELAY", (long)O_NDELAY)) return -1;
454#endif
455#ifdef O_NONBLOCK
456 if (ins(d, "O_NONBLOCK", (long)O_NONBLOCK)) return -1;
457#endif
458#ifdef O_APPEND
459 if (ins(d, "O_APPEND", (long)O_APPEND)) return -1;
460#endif
461#ifdef O_DSYNC
462 if (ins(d, "O_DSYNC", (long)O_DSYNC)) return -1;
463#endif
464#ifdef O_RSYNC
465 if (ins(d, "O_RSYNC", (long)O_RSYNC)) return -1;
466#endif
467#ifdef O_SYNC
468 if (ins(d, "O_SYNC", (long)O_SYNC)) return -1;
469#endif
470#ifdef O_NOCTTY
471 if (ins(d, "O_NOCTTY", (long)O_NOCTTY)) return -1;
472#endif
473#ifdef O_CREAT
474 if (ins(d, "O_CREAT", (long)O_CREAT)) return -1;
475#endif
476#ifdef O_EXCL
477 if (ins(d, "O_EXCL", (long)O_EXCL)) return -1;
478#endif
479#ifdef O_TRUNC
480 if (ins(d, "O_TRUNC", (long)O_TRUNC)) return -1;
481#endif
482#ifdef O_BINARY
483 if (ins(d, "O_BINARY", (long)O_BINARY)) return -1;
484#endif
485#ifdef O_TEXT
486 if (ins(d, "O_TEXT", (long)O_TEXT)) return -1;
487#endif
488#ifdef O_LARGEFILE
489 if (ins(d, "O_LARGEFILE", (long)O_LARGEFILE)) return -1;
490#endif
491
492/* MS Windows */
493#ifdef O_NOINHERIT
494 /* Don't inherit in child processes. */
495 if (ins(d, "O_NOINHERIT", (long)O_NOINHERIT)) return -1;
496#endif
497#ifdef _O_SHORT_LIVED
498 /* Optimize for short life (keep in memory). */
499 /* MS forgot to define this one with a non-underscore form too. */
500 if (ins(d, "O_SHORT_LIVED", (long)_O_SHORT_LIVED)) return -1;
501#endif
502#ifdef O_TEMPORARY
503 /* Automatically delete when last handle is closed. */
504 if (ins(d, "O_TEMPORARY", (long)O_TEMPORARY)) return -1;
505#endif
506#ifdef O_RANDOM
507 /* Optimize for random access. */
508 if (ins(d, "O_RANDOM", (long)O_RANDOM)) return -1;
509#endif
510#ifdef O_SEQUENTIAL
511 /* Optimize for sequential access. */
512 if (ins(d, "O_SEQUENTIAL", (long)O_SEQUENTIAL)) return -1;
513#endif
514
515/* GNU extensions. */
516#ifdef O_DIRECT
517 /* Direct disk access. */
518 if (ins(d, "O_DIRECT", (long)O_DIRECT)) return -1;
519#endif
520#ifdef O_DIRECTORY
521 /* Must be a directory. */
522 if (ins(d, "O_DIRECTORY", (long)O_DIRECTORY)) return -1;
523#endif
524#ifdef O_NOFOLLOW
525 /* Do not follow links. */
526 if (ins(d, "O_NOFOLLOW", (long)O_NOFOLLOW)) return -1;
527#endif
528
529 /* These come from sysexits.h */
530#ifdef EX_OK
531 if (ins(d, "EX_OK", (long)EX_OK)) return -1;
532#endif /* EX_OK */
533#ifdef EX_USAGE
534 if (ins(d, "EX_USAGE", (long)EX_USAGE)) return -1;
535#endif /* EX_USAGE */
536#ifdef EX_DATAERR
537 if (ins(d, "EX_DATAERR", (long)EX_DATAERR)) return -1;
538#endif /* EX_DATAERR */
539#ifdef EX_NOINPUT
540 if (ins(d, "EX_NOINPUT", (long)EX_NOINPUT)) return -1;
541#endif /* EX_NOINPUT */
542#ifdef EX_NOUSER
543 if (ins(d, "EX_NOUSER", (long)EX_NOUSER)) return -1;
544#endif /* EX_NOUSER */
545#ifdef EX_NOHOST
546 if (ins(d, "EX_NOHOST", (long)EX_NOHOST)) return -1;
547#endif /* EX_NOHOST */
548#ifdef EX_UNAVAILABLE
549 if (ins(d, "EX_UNAVAILABLE", (long)EX_UNAVAILABLE)) return -1;
550#endif /* EX_UNAVAILABLE */
551#ifdef EX_SOFTWARE
552 if (ins(d, "EX_SOFTWARE", (long)EX_SOFTWARE)) return -1;
553#endif /* EX_SOFTWARE */
554#ifdef EX_OSERR
555 if (ins(d, "EX_OSERR", (long)EX_OSERR)) return -1;
556#endif /* EX_OSERR */
557#ifdef EX_OSFILE
558 if (ins(d, "EX_OSFILE", (long)EX_OSFILE)) return -1;
559#endif /* EX_OSFILE */
560#ifdef EX_CANTCREAT
561 if (ins(d, "EX_CANTCREAT", (long)EX_CANTCREAT)) return -1;
562#endif /* EX_CANTCREAT */
563#ifdef EX_IOERR
564 if (ins(d, "EX_IOERR", (long)EX_IOERR)) return -1;
565#endif /* EX_IOERR */
566#ifdef EX_TEMPFAIL
567 if (ins(d, "EX_TEMPFAIL", (long)EX_TEMPFAIL)) return -1;
568#endif /* EX_TEMPFAIL */
569#ifdef EX_PROTOCOL
570 if (ins(d, "EX_PROTOCOL", (long)EX_PROTOCOL)) return -1;
571#endif /* EX_PROTOCOL */
572#ifdef EX_NOPERM
573 if (ins(d, "EX_NOPERM", (long)EX_NOPERM)) return -1;
574#endif /* EX_NOPERM */
575#ifdef EX_CONFIG
576 if (ins(d, "EX_CONFIG", (long)EX_CONFIG)) return -1;
577#endif /* EX_CONFIG */
578#ifdef EX_NOTFOUND
579 if (ins(d, "EX_NOTFOUND", (long)EX_NOTFOUND)) return -1;
580#endif /* EX_NOTFOUND */
581
582 return 0;
583}
584
585
586void
587initriscos()
588{
589 PyObject *m, *d, *stat_m;
590
591 m = Py_InitModule("riscos", riscos_methods);
592
593 if (all_ins(m))
594 return;
595
596 d = PyModule_GetDict(m);
597
598 Py_INCREF(PyExc_OSError);
599 PyModule_AddObject(m, "error", PyExc_OSError);
600
601 PyStructSequence_InitType(&StatResultType, &stat_result_desc);
602 PyDict_SetItemString(d, "stat_result", (PyObject*) &StatResultType);
603}
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