cpython/RISCOS/Modules/riscosmodule.c at 2.7 · python-emscripten/cpython · GitHub

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/* RISCOS module implementation */

#include "oslib/osfscontrol.h"

#include "oslib/osgbpb.h"

#include "oslib/os.h"

#include "oslib/osfile.h"

#include "unixstuff.h"

#include <sys/fcntl.h>

#include "Python.h"

#include "structseq.h"

#include <errno.h>

static os_error *e;

/*static PyObject *RiscosError;*/ /* Exception riscos.error */

static PyObject *riscos_error(char *s)

{

PyErr_SetString(PyExc_OSError, s);

return NULL;

}

static PyObject *riscos_oserror(void)

{

return riscos_error(e->errmess);

}

/* RISCOS file commands */

static PyObject *

riscos_remove(PyObject *self, PyObject *args)

{

char *path1;

if (!PyArg_ParseTuple(args, "s:remove", &path1)) return NULL;

if (remove(path1)) return PyErr_SetFromErrno(PyExc_OSError);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_rename(PyObject *self, PyObject *args)

{

char *path1, *path2;

if (!PyArg_ParseTuple(args, "ss:rename", &path1, &path2))

return NULL;

if (rename(path1,path2)) return PyErr_SetFromErrno(PyExc_OSError);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_system(PyObject *self, PyObject *args)

{

char *command;

if (!PyArg_ParseTuple(args, "s:system", &command)) return NULL;

return PyInt_FromLong(system(command));

}

static PyObject *

riscos_chdir(PyObject *self, PyObject *args)

{

char *path;

if (!PyArg_ParseTuple(args, "s:chdir", &path)) return NULL;

e=xosfscontrol_dir(path);

if(e) return riscos_oserror();

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

canon(char *path)

{

int len;

PyObject *obj;

char *buf;

e=xosfscontrol_canonicalise_path(path,0,0,0,0,&len);

if(e) return riscos_oserror();

obj=PyString_FromStringAndSize(NULL,-len);

if(obj==NULL) return NULL;

buf=PyString_AsString(obj);

e=xosfscontrol_canonicalise_path(path,buf,0,0,1-len,&len);

if(len!=1) return riscos_error("Error expanding path");

if(!e) return obj;

Py_DECREF(obj);

return riscos_oserror();

}

static PyObject *

riscos_getcwd(PyObject *self, PyObject *unused)

{

return canon("@");

}

static PyObject *

riscos_expand(PyObject *self, PyObject *args)

{

char *path;

if (!PyArg_ParseTuple(args, "s:expand", &path)) return NULL;

return canon(path);

}

static PyObject *

riscos_mkdir(PyObject *self, PyObject *args)

{

char *path;

int mode;

if (!PyArg_ParseTuple(args, "s|i:mkdir", &path, &mode)) return NULL;

e=xosfile_create_dir(path,0);

if(e) return riscos_oserror();

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_listdir(PyObject *self, PyObject *args)

{

char *path,buf[256];

PyObject *d, *v;

int c=0,count;

if (!PyArg_ParseTuple(args, "s:listdir", &path)) return NULL;

d=PyList_New(0);

if(!d) return NULL;

for(;;)

{ e=xosgbpb_dir_entries(path,(osgbpb_string_list*)buf,

1,c,256,0,&count,&c);

if(e)

{ Py_DECREF(d);return riscos_oserror();

}

if(count)

{ v=PyString_FromString(buf);

if(!v) { Py_DECREF(d);return 0;}

if(PyList_Append(d,v)) {Py_DECREF(d);Py_DECREF(v);return 0;}

}

if(c==-1) break;

}

return d;

}

PyDoc_STRVAR(stat_result__doc__,

"stat_result: Result from stat or lstat.\n\n\

This object may be accessed either as a tuple of\n\

(mode,ino,dev,nlink,uid,gid,size,atime,mtime,ctime)\n\

or via the attributes st_mode, st_ino, st_dev, st_nlink, st_uid, and so on.\n\

\n\

RiscOS: The fields st_ftype, st_attrs, and st_obtype are also available.\n\

\n\

See os.stat for more information.");

static PyStructSequence_Field stat_result_fields[] = {

{ "st_mode", "protection bits" },

{ "st_ino", "inode" },

{ "st_dev", "device" },

{ "st_nlink", "number of hard links" },

{ "st_uid", "user ID of owner" },

{ "st_gid", "group ID of owner" },

{ "st_size", "total size, in bytes" },

{ "st_atime", "time of last access" },

{ "st_mtime", "time of last modification" },

{ "st_ctime", "time of last change" },

{ "st_ftype", "file type" },

{ "st_attrs", "attributes" },

{ "st_obtype", "object type" },

{ 0 }

};

static PyStructSequence_Desc stat_result_desc = {

"riscos.stat_result",

stat_result__doc__,

stat_result_fields,

};

static PyTypeObject StatResultType;

static PyObject *

riscos_stat(PyObject *self, PyObject *args)

{

PyObject *v;

char *path;

int ob,len;

bits t=0;

bits ld,ex,at,ft,mode;

if (!PyArg_ParseTuple(args, "s:stat", &path)) return NULL;

e=xosfile_read_stamped_no_path(path,&ob,&ld,&ex,&len,&at,&ft);

if(e) return riscos_oserror();

switch (ob)

{ case osfile_IS_FILE:mode=0100000;break; /* OCTAL */

case osfile_IS_DIR:mode=040000;break;

case osfile_IS_IMAGE:mode=0140000;break;

default:return riscos_error("Not found");

}

if(ft!=-1) t=unixtime(ld,ex);

mode|=(at&7)<<6;

mode|=((at&112)*9)>>4;

v = PyStructSequence_New(&StatResultType);

PyStructSequence_SET_ITEM(v, 0,

PyInt_FromLong((long) mode)); /*st_mode*/

PyStructSequence_SET_ITEM(v, 1, PyInt_FromLong((long) 0)); /*st_ino*/

PyStructSequence_SET_ITEM(v, 2, PyInt_FromLong((long) 0)); /*st_dev*/

PyStructSequence_SET_ITEM(v, 3, PyInt_FromLong((long) 0)); /*st_nlink*/

PyStructSequence_SET_ITEM(v, 4, PyInt_FromLong((long) 0)); /*st_uid*/

PyStructSequence_SET_ITEM(v, 5, PyInt_FromLong((long) 0)); /*st_gid*/

PyStructSequence_SET_ITEM(v, 6,

PyInt_FromLong((long) len)); /*st_size*/

PyStructSequence_SET_ITEM(v, 7, PyInt_FromLong((long) t)); /*st_atime*/

PyStructSequence_SET_ITEM(v, 8, PyInt_FromLong((long) t)); /*st_mtime*/

PyStructSequence_SET_ITEM(v, 9, PyInt_FromLong((long) t)); /*st_ctime*/

PyStructSequence_SET_ITEM(v, 10,

PyInt_FromLong((long) ft)); /*file type*/

PyStructSequence_SET_ITEM(v, 11,

PyInt_FromLong((long) at)); /*attributes*/

PyStructSequence_SET_ITEM(v, 12,

PyInt_FromLong((long) ob)); /*object type*/

if (PyErr_Occurred()) {

Py_DECREF(v);

return NULL;

}

return v;

}

static PyObject *

riscos_chmod(PyObject *self,PyObject *args)

{

char *path;

bits mode;

bits attr;

attr=(mode&0x700)>>8;

attr|=(mode&7)<<4;

if (!PyArg_ParseTuple(args, "si:chmod", &path,(int*)&mode)) return NULL;

e=xosfile_write_attr(path,attr);

if(e) return riscos_oserror();

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_utime(PyObject *self, PyObject *args)

{

char *path;

long atime, mtime;

PyObject* arg;

if (!PyArg_ParseTuple(args, "sO:utime", &path, &arg))

return NULL;

if (arg == Py_None) {

/* optional time values not given */

Py_BEGIN_ALLOW_THREADS

e=xosfile_stamp(path);

Py_END_ALLOW_THREADS

if(e) return riscos_oserror();

}

else if (!PyArg_Parse(arg, "(ll)", &atime, &mtime)) {

PyErr_SetString(PyExc_TypeError,

"utime() arg 2 must be a tuple (atime, mtime)");

return NULL;

}

else {

/* catalogue info*/

fileswitch_object_type obj_type;

bits load_addr, exec_addr;

int size;

fileswitch_attr attr;

/* read old catalogue info */

Py_BEGIN_ALLOW_THREADS

e=xosfile_read_no_path(path, &obj_type, &load_addr, &exec_addr, &size, &attr);

Py_END_ALLOW_THREADS

if(e) return riscos_oserror();

/* check if load and exec address really contain filetype and date */

if ( (load_addr & 0xFFF00000U) != 0xFFF00000U)

return riscos_error("can't set date for object with load and exec addresses");

/* convert argument mtime to RISC OS load and exec address */

if(acorntime(&exec_addr, &load_addr, (time_t) mtime))

return riscos_oserror();

/* write new load and exec address */

Py_BEGIN_ALLOW_THREADS

e = xosfile_write(path, load_addr, exec_addr, attr);

Py_END_ALLOW_THREADS

if(e) return riscos_oserror();

}

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_settype(PyObject *self, PyObject *args)

{

char *path,*name;

int type;

if (!PyArg_ParseTuple(args, "si:settype", &path,&type))

{

PyErr_Clear();

if (!PyArg_ParseTuple(args, "ss:settype", &path,&name)) return NULL;

e=xosfscontrol_file_type_from_string(name,(bits*)&type);

if(e) return riscos_oserror();

}

e=xosfile_set_type(path,type);

if(e) return riscos_oserror();

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_getenv(PyObject *self, PyObject *args)

{

char *name,*value;

if(!PyArg_ParseTuple(args,"s:getenv",&name)) return NULL;

value=getenv(name);

if(value) return PyString_FromString(value);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_putenv(PyObject *self, PyObject *args)

{

char *name,*value;

int len;

os_var_type type=os_VARTYPE_LITERAL_STRING;

if(!PyArg_ParseTuple(args,"ss|i:putenv",&name,&value,&type)) return NULL;

if(type!=os_VARTYPE_STRING&&type!=os_VARTYPE_MACRO&&type!=os_VARTYPE_EXPANDED

&&type!=os_VARTYPE_LITERAL_STRING)

return riscos_error("Bad putenv type");

len=strlen(value);

if(type!=os_VARTYPE_LITERAL_STRING) len++;

/* Other types need null terminator! */

e=xos_set_var_val(name,(byte*)value,len,0,type,0,0);

if(e) return riscos_oserror();

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_delenv(PyObject *self, PyObject *args)

{

char *name;

if(!PyArg_ParseTuple(args,"s:delenv",&name)) return NULL;

e=xos_set_var_val(name,NULL,-1,0,0,0,0);

if(e) return riscos_oserror();

Py_INCREF(Py_None);

return Py_None;

}

static PyObject *

riscos_getenvdict(PyObject *self, PyObject *args)

{

PyObject *dict;

char value[257];

char *which="*";

int size;

char *context=NULL;

if(!PyArg_ParseTuple(args,"|s:getenvdict",&which)) return NULL;

dict = PyDict_New();

if (!dict) return NULL;

/* XXX This part ignores errors */

while(!xos_read_var_val(which,value,sizeof(value)-1,(int)context,

os_VARTYPE_EXPANDED,&size,(int *)&context,0))

{ PyObject *v;

value[size]='\0';

v = PyString_FromString(value);

if (v == NULL) continue;

PyDict_SetItemString(dict, context, v);

Py_DECREF(v);

}

return dict;

}

static PyMethodDef riscos_methods[] = {

{"unlink", riscos_remove, METH_VARARGS},

{"remove", riscos_remove, METH_VARARGS},

{"rename", riscos_rename, METH_VARARGS},

{"system", riscos_system, METH_VARARGS},

{"rmdir", riscos_remove, METH_VARARGS},

{"chdir", riscos_chdir, METH_VARARGS},

{"getcwd", riscos_getcwd, METH_NOARGS},

{"expand", riscos_expand, METH_VARARGS},

{"mkdir", riscos_mkdir, METH_VARARGS},

{"listdir", riscos_listdir, METH_VARARGS},

{"stat", riscos_stat, METH_VARARGS},

{"lstat", riscos_stat, METH_VARARGS},

{"chmod", riscos_chmod, METH_VARARGS},

{"utime", riscos_utime, METH_VARARGS},

{"settype", riscos_settype, METH_VARARGS},

{"getenv", riscos_getenv, METH_VARARGS},

{"putenv", riscos_putenv, METH_VARARGS},

{"delenv", riscos_delenv, METH_VARARGS},

{"getenvdict", riscos_getenvdict, METH_VARARGS},

{NULL, NULL} /* Sentinel */

};

static int

ins(PyObject *module, char *symbol, long value)

{

return PyModule_AddIntConstant(module, symbol, value);

}

static int

all_ins(PyObject *d)

{

#ifdef F_OK

if (ins(d, "F_OK", (long)F_OK)) return -1;

#endif

#ifdef R_OK

if (ins(d, "R_OK", (long)R_OK)) return -1;

#endif

#ifdef W_OK

if (ins(d, "W_OK", (long)W_OK)) return -1;

#endif

#ifdef X_OK

if (ins(d, "X_OK", (long)X_OK)) return -1;

#endif

#ifdef NGROUPS_MAX

if (ins(d, "NGROUPS_MAX", (long)NGROUPS_MAX)) return -1;

#endif

#ifdef TMP_MAX

if (ins(d, "TMP_MAX", (long)TMP_MAX)) return -1;

#endif

#ifdef WCONTINUED

if (ins(d, "WCONTINUED", (long)WCONTINUED)) return -1;

#endif

#ifdef WNOHANG

if (ins(d, "WNOHANG", (long)WNOHANG)) return -1;

#endif

#ifdef WUNTRACED

if (ins(d, "WUNTRACED", (long)WUNTRACED)) return -1;

#endif

#ifdef O_RDONLY

if (ins(d, "O_RDONLY", (long)O_RDONLY)) return -1;

#endif

#ifdef O_WRONLY

if (ins(d, "O_WRONLY", (long)O_WRONLY)) return -1;

#endif

#ifdef O_RDWR

if (ins(d, "O_RDWR", (long)O_RDWR)) return -1;

#endif

#ifdef O_NDELAY

if (ins(d, "O_NDELAY", (long)O_NDELAY)) return -1;

#endif

#ifdef O_NONBLOCK

if (ins(d, "O_NONBLOCK", (long)O_NONBLOCK)) return -1;

#endif

#ifdef O_APPEND

if (ins(d, "O_APPEND", (long)O_APPEND)) return -1;

#endif

#ifdef O_DSYNC

if (ins(d, "O_DSYNC", (long)O_DSYNC)) return -1;

#endif

#ifdef O_RSYNC

if (ins(d, "O_RSYNC", (long)O_RSYNC)) return -1;

#endif

#ifdef O_SYNC

if (ins(d, "O_SYNC", (long)O_SYNC)) return -1;

#endif

#ifdef O_NOCTTY

if (ins(d, "O_NOCTTY", (long)O_NOCTTY)) return -1;

#endif

#ifdef O_CREAT

if (ins(d, "O_CREAT", (long)O_CREAT)) return -1;

#endif

#ifdef O_EXCL

if (ins(d, "O_EXCL", (long)O_EXCL)) return -1;

#endif

#ifdef O_TRUNC

if (ins(d, "O_TRUNC", (long)O_TRUNC)) return -1;

#endif

#ifdef O_BINARY

if (ins(d, "O_BINARY", (long)O_BINARY)) return -1;

#endif

#ifdef O_TEXT

if (ins(d, "O_TEXT", (long)O_TEXT)) return -1;

#endif

#ifdef O_LARGEFILE

if (ins(d, "O_LARGEFILE", (long)O_LARGEFILE)) return -1;

#endif

/* MS Windows */

#ifdef O_NOINHERIT

/* Don't inherit in child processes. */

if (ins(d, "O_NOINHERIT", (long)O_NOINHERIT)) return -1;

#endif

#ifdef _O_SHORT_LIVED

/* Optimize for short life (keep in memory). */

/* MS forgot to define this one with a non-underscore form too. */

if (ins(d, "O_SHORT_LIVED", (long)_O_SHORT_LIVED)) return -1;

#endif

#ifdef O_TEMPORARY

/* Automatically delete when last handle is closed. */

if (ins(d, "O_TEMPORARY", (long)O_TEMPORARY)) return -1;

#endif

#ifdef O_RANDOM

/* Optimize for random access. */

if (ins(d, "O_RANDOM", (long)O_RANDOM)) return -1;

#endif

#ifdef O_SEQUENTIAL

/* Optimize for sequential access. */

if (ins(d, "O_SEQUENTIAL", (long)O_SEQUENTIAL)) return -1;

#endif

/* GNU extensions. */

#ifdef O_DIRECT

/* Direct disk access. */

if (ins(d, "O_DIRECT", (long)O_DIRECT)) return -1;

#endif

#ifdef O_DIRECTORY

/* Must be a directory. */

if (ins(d, "O_DIRECTORY", (long)O_DIRECTORY)) return -1;

#endif

#ifdef O_NOFOLLOW

/* Do not follow links. */

if (ins(d, "O_NOFOLLOW", (long)O_NOFOLLOW)) return -1;

#endif

/* These come from sysexits.h */

#ifdef EX_OK

if (ins(d, "EX_OK", (long)EX_OK)) return -1;

#endif /* EX_OK */

#ifdef EX_USAGE

if (ins(d, "EX_USAGE", (long)EX_USAGE)) return -1;

#endif /* EX_USAGE */

#ifdef EX_DATAERR

if (ins(d, "EX_DATAERR", (long)EX_DATAERR)) return -1;

#endif /* EX_DATAERR */

#ifdef EX_NOINPUT

if (ins(d, "EX_NOINPUT", (long)EX_NOINPUT)) return -1;

#endif /* EX_NOINPUT */

#ifdef EX_NOUSER

if (ins(d, "EX_NOUSER", (long)EX_NOUSER)) return -1;

#endif /* EX_NOUSER */

#ifdef EX_NOHOST

if (ins(d, "EX_NOHOST", (long)EX_NOHOST)) return -1;

#endif /* EX_NOHOST */

#ifdef EX_UNAVAILABLE

if (ins(d, "EX_UNAVAILABLE", (long)EX_UNAVAILABLE)) return -1;

#endif /* EX_UNAVAILABLE */

#ifdef EX_SOFTWARE

if (ins(d, "EX_SOFTWARE", (long)EX_SOFTWARE)) return -1;

#endif /* EX_SOFTWARE */

#ifdef EX_OSERR

if (ins(d, "EX_OSERR", (long)EX_OSERR)) return -1;

#endif /* EX_OSERR */

#ifdef EX_OSFILE

if (ins(d, "EX_OSFILE", (long)EX_OSFILE)) return -1;

#endif /* EX_OSFILE */

#ifdef EX_CANTCREAT

if (ins(d, "EX_CANTCREAT", (long)EX_CANTCREAT)) return -1;

#endif /* EX_CANTCREAT */

#ifdef EX_IOERR

if (ins(d, "EX_IOERR", (long)EX_IOERR)) return -1;

#endif /* EX_IOERR */

#ifdef EX_TEMPFAIL

if (ins(d, "EX_TEMPFAIL", (long)EX_TEMPFAIL)) return -1;

#endif /* EX_TEMPFAIL */

#ifdef EX_PROTOCOL

if (ins(d, "EX_PROTOCOL", (long)EX_PROTOCOL)) return -1;

#endif /* EX_PROTOCOL */

#ifdef EX_NOPERM

if (ins(d, "EX_NOPERM", (long)EX_NOPERM)) return -1;

#endif /* EX_NOPERM */

#ifdef EX_CONFIG

if (ins(d, "EX_CONFIG", (long)EX_CONFIG)) return -1;

#endif /* EX_CONFIG */

#ifdef EX_NOTFOUND

if (ins(d, "EX_NOTFOUND", (long)EX_NOTFOUND)) return -1;

#endif /* EX_NOTFOUND */

return 0;

}

void

initriscos()

{

PyObject *m, *d, *stat_m;

m = Py_InitModule("riscos", riscos_methods);

if (all_ins(m))

return;

d = PyModule_GetDict(m);

Py_INCREF(PyExc_OSError);

PyModule_AddObject(m, "error", PyExc_OSError);

PyStructSequence_InitType(&StatResultType, &stat_result_desc);

PyDict_SetItemString(d, "stat_result", (PyObject*) &StatResultType);

}

cpython/RISCOS/Modules/riscosmodule.c at 2.7 · python-emscripten/cpython · GitHub

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