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}
604