mirror of https://github.com/python/cpython
571 lines
16 KiB
C
571 lines
16 KiB
C
/* RISCOS module implementation */
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#include "oslib/osfscontrol.h"
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#include "oslib/osgbpb.h"
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#include "oslib/os.h"
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#include "oslib/osfile.h"
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#include "unixstuff.h"
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#include <sys/fcntl.h>
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#include "Python.h"
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#include "structseq.h"
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#include <errno.h>
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static os_error *e;
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/*static PyObject *RiscosError;*/ /* Exception riscos.error */
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static PyObject *riscos_error(char *s)
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{
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PyErr_SetString(PyExc_OSError, s);
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return NULL;
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}
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static PyObject *riscos_oserror(void)
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{
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return riscos_error(e->errmess);
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}
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/* RISCOS file commands */
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static PyObject *riscos_remove(PyObject *self,PyObject *args)
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{ char *path1;
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if (!PyArg_Parse(args, "s", &path1)) return NULL;
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if (remove(path1)) return PyErr_SetFromErrno(PyExc_OSError);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_rename(PyObject *self,PyObject *args)
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{ char *path1, *path2;
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if (!PyArg_Parse(args, "(ss)", &path1, &path2)) return NULL;
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if (rename(path1,path2)) return PyErr_SetFromErrno(PyExc_OSError);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_system(PyObject *self,PyObject *args)
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{ char *command;
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if (!PyArg_Parse(args, "s", &command)) return NULL;
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return PyInt_FromLong(system(command));
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}
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static PyObject *riscos_chdir(PyObject *self,PyObject *args)
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{ char *path;
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if (!PyArg_Parse(args, "s", &path)) return NULL;
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e=xosfscontrol_dir(path);
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if(e) return riscos_oserror();
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *canon(char *path)
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{ int len;
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PyObject *obj;
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char *buf;
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e=xosfscontrol_canonicalise_path(path,0,0,0,0,&len);
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if(e) return riscos_oserror();
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obj=PyString_FromStringAndSize(NULL,-len);
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if(obj==NULL) return NULL;
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buf=PyString_AsString(obj);
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e=xosfscontrol_canonicalise_path(path,buf,0,0,1-len,&len);
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if(len!=1) return riscos_error("Error expanding path");
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if(!e) return obj;
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Py_DECREF(obj);
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return riscos_oserror();
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}
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static PyObject *riscos_getcwd(PyObject *self,PyObject *args)
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{
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return canon("@");
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}
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static PyObject *riscos_expand(PyObject *self,PyObject *args)
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{ char *path;
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if (!PyArg_Parse(args, "s", &path)) return NULL;
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return canon(path);
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}
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static PyObject *riscos_mkdir(PyObject *self,PyObject *args)
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{ char *path;
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int mode;
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if (!PyArg_ParseTuple(args, "s|i", &path, &mode)) return NULL;
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e=xosfile_create_dir(path,0);
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if(e) return riscos_oserror();
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_listdir(PyObject *self,PyObject *args)
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{ char *path,buf[256];
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PyObject *d, *v;
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int c=0,count;
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if (!PyArg_Parse(args, "s", &path)) return NULL;
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d=PyList_New(0);
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if(!d) return NULL;
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for(;;)
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{ e=xosgbpb_dir_entries(path,(osgbpb_string_list*)buf,
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1,c,256,0,&count,&c);
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if(e)
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{ Py_DECREF(d);return riscos_oserror();
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}
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if(count)
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{ v=PyString_FromString(buf);
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if(!v) { Py_DECREF(d);return 0;}
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if(PyList_Append(d,v)) {Py_DECREF(d);Py_DECREF(v);return 0;}
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}
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if(c==-1) break;
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}
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return d;
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}
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PyDoc_STRVAR(stat_result__doc__,
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"stat_result: Result from stat or lstat.\n\n\
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This object may be accessed either as a tuple of\n\
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(mode,ino,dev,nlink,uid,gid,size,atime,mtime,ctime)\n\
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or via the attributes st_mode, st_ino, st_dev, st_nlink, st_uid, and so on.\n\
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\n\
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RiscOS: The fields st_ftype, st_attrs, and st_obtype are also available.\n\
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\n\
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See os.stat for more information.");
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static PyStructSequence_Field stat_result_fields[] = {
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{ "st_mode", "protection bits" },
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{ "st_ino", "inode" },
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{ "st_dev", "device" },
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{ "st_nlink", "number of hard links" },
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{ "st_uid", "user ID of owner" },
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{ "st_gid", "group ID of owner" },
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{ "st_size", "total size, in bytes" },
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{ "st_atime", "time of last access" },
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{ "st_mtime", "time of last modification" },
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{ "st_ctime", "time of last change" },
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{ "st_ftype", "file type" },
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{ "st_attrs", "attributes" },
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{ "st_obtype", "object type" },
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{ 0 }
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};
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static PyStructSequence_Desc stat_result_desc = {
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"riscos.stat_result",
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stat_result__doc__,
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stat_result_fields,
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13
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};
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static PyTypeObject StatResultType;
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static PyObject *riscos_stat(PyObject *self,PyObject *args)
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{
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PyObject *v;
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char *path;
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int ob,len;
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bits t=0;
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bits ld,ex,at,ft,mode;
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if (!PyArg_Parse(args, "s", &path)) return NULL;
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e=xosfile_read_stamped_no_path(path,&ob,&ld,&ex,&len,&at,&ft);
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if(e) return riscos_oserror();
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switch (ob)
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{ case osfile_IS_FILE:mode=0100000;break; /* OCTAL */
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case osfile_IS_DIR:mode=040000;break;
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case osfile_IS_IMAGE:mode=0140000;break;
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default:return riscos_error("Not found");
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}
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if(ft!=-1) t=unixtime(ld,ex);
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mode|=(at&7)<<6;
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mode|=((at&112)*9)>>4;
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v = PyStructSequence_New(&StatResultType);
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PyStructSequence_SET_ITEM(v, 0,
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PyInt_FromLong((long) mode)); /*st_mode*/
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PyStructSequence_SET_ITEM(v, 1, PyInt_FromLong((long) 0)); /*st_ino*/
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PyStructSequence_SET_ITEM(v, 2, PyInt_FromLong((long) 0)); /*st_dev*/
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PyStructSequence_SET_ITEM(v, 3, PyInt_FromLong((long) 0)); /*st_nlink*/
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PyStructSequence_SET_ITEM(v, 4, PyInt_FromLong((long) 0)); /*st_uid*/
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PyStructSequence_SET_ITEM(v, 5, PyInt_FromLong((long) 0)); /*st_gid*/
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PyStructSequence_SET_ITEM(v, 6,
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PyInt_FromLong((long) len)); /*st_size*/
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PyStructSequence_SET_ITEM(v, 7, PyInt_FromLong((long) t)); /*st_atime*/
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PyStructSequence_SET_ITEM(v, 8, PyInt_FromLong((long) t)); /*st_mtime*/
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PyStructSequence_SET_ITEM(v, 9, PyInt_FromLong((long) t)); /*st_ctime*/
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PyStructSequence_SET_ITEM(v, 10,
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PyInt_FromLong((long) ft)); /*file type*/
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PyStructSequence_SET_ITEM(v, 11,
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PyInt_FromLong((long) at)); /*attributes*/
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PyStructSequence_SET_ITEM(v, 12,
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PyInt_FromLong((long) ob)); /*object type*/
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if (PyErr_Occurred()) {
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Py_DECREF(v);
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return NULL;
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}
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return v;
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}
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static PyObject *riscos_chmod(PyObject *self,PyObject *args)
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{ char *path;
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bits mode;
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bits attr;
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attr=(mode&0x700)>>8;
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attr|=(mode&7)<<4;
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if (!PyArg_Parse(args, "(si)", &path,(int*)&mode)) return NULL;
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e=xosfile_write_attr(path,attr);
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if(e) return riscos_oserror();
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_utime(PyObject *self,PyObject *args)
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{
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char *path;
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long atime, mtime;
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PyObject* arg;
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if (!PyArg_ParseTuple(args, "sO:utime", &path, &arg))
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return NULL;
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if (arg == Py_None) {
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/* optional time values not given */
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Py_BEGIN_ALLOW_THREADS
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e=xosfile_stamp(path);
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Py_END_ALLOW_THREADS
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if(e) return riscos_oserror();
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}
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else if (!PyArg_Parse(arg, "(ll)", &atime, &mtime)) {
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PyErr_SetString(PyExc_TypeError,
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"utime() arg 2 must be a tuple (atime, mtime)");
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return NULL;
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}
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else {
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/* catalogue info*/
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fileswitch_object_type obj_type;
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bits load_addr, exec_addr;
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int size;
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fileswitch_attr attr;
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/* read old catalogue info */
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Py_BEGIN_ALLOW_THREADS
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e=xosfile_read_no_path(path, &obj_type, &load_addr, &exec_addr, &size, &attr);
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Py_END_ALLOW_THREADS
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if(e) return riscos_oserror();
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/* check if load and exec address really contain filetype and date */
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if ( (load_addr & 0xFFF00000U) != 0xFFF00000U)
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return riscos_error("can't set date for object with load and exec addresses");
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/* convert argument mtime to RISC OS load and exec address */
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if(acorntime(&exec_addr, &load_addr, (time_t) mtime))
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return riscos_oserror();
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/* write new load and exec address */
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Py_BEGIN_ALLOW_THREADS
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e = xosfile_write(path, load_addr, exec_addr, attr);
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Py_END_ALLOW_THREADS
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if(e) return riscos_oserror();
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}
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_settype(PyObject *self,PyObject *args)
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{ char *path,*name;
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int type;
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if (!PyArg_Parse(args, "(si)", &path,&type))
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{ PyErr_Clear();
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if (!PyArg_Parse(args, "(ss)", &path,&name)) return NULL;
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e=xosfscontrol_file_type_from_string(name,(bits*)&type);
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if(e) return riscos_oserror();
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}
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e=xosfile_set_type(path,type);
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if(e) return riscos_oserror();
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_getenv(PyObject *self,PyObject *args)
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{ char *name,*value;
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if(!PyArg_Parse(args,"s",&name)) return NULL;
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value=getenv(name);
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if(value) return PyString_FromString(value);
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_putenv(PyObject *self,PyObject *args)
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{ char *name,*value;
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int len;
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os_var_type type=os_VARTYPE_LITERAL_STRING;
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if(!PyArg_ParseTuple(args,"ss|i",&name,&value,&type)) return NULL;
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if(type!=os_VARTYPE_STRING&&type!=os_VARTYPE_MACRO&&type!=os_VARTYPE_EXPANDED
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&&type!=os_VARTYPE_LITERAL_STRING)
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return riscos_error("Bad putenv type");
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len=strlen(value);
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if(type!=os_VARTYPE_LITERAL_STRING) len++;
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/* Other types need null terminator! */
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e=xos_set_var_val(name,(byte*)value,len,0,type,0,0);
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if(e) return riscos_oserror();
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_delenv(PyObject *self,PyObject *args)
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{ char *name;
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if(!PyArg_Parse(args,"s",&name)) return NULL;
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e=xos_set_var_val(name,NULL,-1,0,0,0,0);
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if(e) return riscos_oserror();
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *riscos_getenvdict(PyObject *self,PyObject *args)
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{ PyObject *dict;
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char value[257];
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char *which="*";
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int size;
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char *context=NULL;
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if(!PyArg_ParseTuple(args,"|s",&which)) return NULL;
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dict = PyDict_New();
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if (!dict) return NULL;
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/* XXX This part ignores errors */
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while(!xos_read_var_val(which,value,sizeof(value)-1,(int)context,
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os_VARTYPE_EXPANDED,&size,(int *)&context,0))
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{ PyObject *v;
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value[size]='\0';
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v = PyString_FromString(value);
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if (v == NULL) continue;
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PyDict_SetItemString(dict, context, v);
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Py_DECREF(v);
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}
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return dict;
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}
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static PyMethodDef riscos_methods[] = {
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{"unlink", riscos_remove},
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{"remove", riscos_remove},
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{"rename", riscos_rename},
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{"system", riscos_system},
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{"rmdir", riscos_remove},
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{"chdir", riscos_chdir},
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{"getcwd", riscos_getcwd, METH_NOARGS},
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{"expand", riscos_expand},
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{"mkdir", riscos_mkdir,1},
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{"listdir", riscos_listdir},
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{"stat", riscos_stat},
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{"lstat", riscos_stat},
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{"chmod", riscos_chmod},
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{"utime", riscos_utime},
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{"settype", riscos_settype},
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{"getenv", riscos_getenv},
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{"putenv", riscos_putenv},
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{"delenv", riscos_delenv},
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{"getenvdict", riscos_getenvdict,1},
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{NULL, NULL} /* Sentinel */
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};
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static int
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ins(PyObject *module, char *symbol, long value)
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{
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return PyModule_AddIntConstant(module, symbol, value);
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}
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static int
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all_ins(PyObject *d)
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{
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#ifdef F_OK
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if (ins(d, "F_OK", (long)F_OK)) return -1;
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#endif
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#ifdef R_OK
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if (ins(d, "R_OK", (long)R_OK)) return -1;
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#endif
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#ifdef W_OK
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if (ins(d, "W_OK", (long)W_OK)) return -1;
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#endif
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#ifdef X_OK
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if (ins(d, "X_OK", (long)X_OK)) return -1;
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#endif
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#ifdef NGROUPS_MAX
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if (ins(d, "NGROUPS_MAX", (long)NGROUPS_MAX)) return -1;
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#endif
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#ifdef TMP_MAX
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if (ins(d, "TMP_MAX", (long)TMP_MAX)) return -1;
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#endif
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#ifdef WCONTINUED
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if (ins(d, "WCONTINUED", (long)WCONTINUED)) return -1;
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#endif
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#ifdef WNOHANG
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if (ins(d, "WNOHANG", (long)WNOHANG)) return -1;
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#endif
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#ifdef WUNTRACED
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if (ins(d, "WUNTRACED", (long)WUNTRACED)) return -1;
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#endif
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#ifdef O_RDONLY
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if (ins(d, "O_RDONLY", (long)O_RDONLY)) return -1;
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#endif
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#ifdef O_WRONLY
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if (ins(d, "O_WRONLY", (long)O_WRONLY)) return -1;
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#endif
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#ifdef O_RDWR
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if (ins(d, "O_RDWR", (long)O_RDWR)) return -1;
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#endif
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#ifdef O_NDELAY
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if (ins(d, "O_NDELAY", (long)O_NDELAY)) return -1;
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#endif
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#ifdef O_NONBLOCK
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if (ins(d, "O_NONBLOCK", (long)O_NONBLOCK)) return -1;
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#endif
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#ifdef O_APPEND
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if (ins(d, "O_APPEND", (long)O_APPEND)) return -1;
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#endif
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#ifdef O_DSYNC
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if (ins(d, "O_DSYNC", (long)O_DSYNC)) return -1;
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#endif
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#ifdef O_RSYNC
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if (ins(d, "O_RSYNC", (long)O_RSYNC)) return -1;
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#endif
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#ifdef O_SYNC
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if (ins(d, "O_SYNC", (long)O_SYNC)) return -1;
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#endif
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#ifdef O_NOCTTY
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if (ins(d, "O_NOCTTY", (long)O_NOCTTY)) return -1;
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#endif
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#ifdef O_CREAT
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if (ins(d, "O_CREAT", (long)O_CREAT)) return -1;
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#endif
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#ifdef O_EXCL
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if (ins(d, "O_EXCL", (long)O_EXCL)) return -1;
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#endif
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#ifdef O_TRUNC
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if (ins(d, "O_TRUNC", (long)O_TRUNC)) return -1;
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#endif
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#ifdef O_BINARY
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if (ins(d, "O_BINARY", (long)O_BINARY)) return -1;
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#endif
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#ifdef O_TEXT
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if (ins(d, "O_TEXT", (long)O_TEXT)) return -1;
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#endif
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#ifdef O_LARGEFILE
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if (ins(d, "O_LARGEFILE", (long)O_LARGEFILE)) return -1;
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#endif
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/* MS Windows */
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#ifdef O_NOINHERIT
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/* Don't inherit in child processes. */
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if (ins(d, "O_NOINHERIT", (long)O_NOINHERIT)) return -1;
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#endif
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#ifdef _O_SHORT_LIVED
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/* Optimize for short life (keep in memory). */
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/* MS forgot to define this one with a non-underscore form too. */
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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);
|
|
}
|