RISCOS files by dschwertberger

1 files changed, 283 insertions, 0 deletions

diff --git a/RISCOS/Modules/riscosmodule.c b/RISCOS/Modules/riscosmodule.c
new file mode 100644
index 0000000..d378eba
--- /dev/null
+++ b/RISCOS/Modules/riscosmodule.c
@@ -0,0 +1,283 @@
+/* RISCOS module implementation */
+
+#include "h.osfscontrol"
+#include "h.osgbpb"
+#include "h.os"
+#include "h.osfile"
+
+#include "Python.h"
+
+#include <errno.h>
+
+static os_error *e;
+
+static PyObject *RiscosError; /* Exception riscos.error */
+
+static PyObject *riscos_oserror(void)
+{ PyErr_SetString(RiscosError,e->errmess);
+  return 0;
+}
+
+static PyObject *riscos_error(char *s) { PyErr_SetString(RiscosError,s);return 0;}
+
+/* RISCOS file commands */
+
+static PyObject *riscos_remove(PyObject *self,PyObject *args)
+{       char *path1;
+	if (!PyArg_Parse(args, "s", &path1)) return NULL;
+	if (remove(path1)) return PyErr_SetFromErrno(RiscosError);
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
+static PyObject *riscos_rename(PyObject *self,PyObject *args)
+{	char *path1, *path2;
+	if (!PyArg_Parse(args, "(ss)", &path1, &path2)) return NULL;
+	if (rename(path1,path2)) return PyErr_SetFromErrno(RiscosError);;
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
+static PyObject *riscos_system(PyObject *self,PyObject *args)
+{	char *command;
+	if (!PyArg_Parse(args, "s", &command)) return NULL;
+	return PyInt_FromLong(system(command));
+}
+
+static PyObject *riscos_chdir(PyObject *self,PyObject *args)
+{	char *path;
+	if (!PyArg_Parse(args, "s", &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 *args)
+{ if(!PyArg_NoArgs(args)) return NULL;
+  return canon("@");
+}
+
+static PyObject *riscos_expand(PyObject *self,PyObject *args)
+{	char *path;
+	if (!PyArg_Parse(args, "s", &path)) return NULL;
+        return canon(path);
+}
+
+static PyObject *riscos_mkdir(PyObject *self,PyObject *args)
+{	char *path;
+        int mode;
+        if (!PyArg_ParseTuple(args, "s|i", &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_Parse(args, "s", &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;
+}
+
+static PyObject *riscos_stat(PyObject *self,PyObject *args)
+{	char *path;
+        int ob,len;
+        bits t=0;
+        bits ld,ex,at,ft,mode;
+	if (!PyArg_Parse(args, "s", &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;
+        return Py_BuildValue("(lllllllllllll)",
+		    (long)mode,/*st_mode*/
+		    0,/*st_ino*/
+		    0,/*st_dev*/
+		    0,/*st_nlink*/
+		    0,/*st_uid*/
+		    0,/*st_gid*/
+		    (long)len,/*st_size*/
+		    (long)t,/*st_atime*/
+		    (long)t,/*st_mtime*/
+		    (long)t,/*st_ctime*/
+		    (long)ft,/*file type*/
+		    (long)at,/*attributes*/
+		    (long)ob/*object type*/
+		    );
+}
+
+static PyObject *riscos_chmod(PyObject *self,PyObject *args)
+{	char *path;
+        bits mode;
+        bits attr;
+        attr=(mode&0x700)>>8;
+        attr|=(mode&7)<<4;
+	if (!PyArg_Parse(args, "(si)", &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;
+        int x,y;
+	if (!PyArg_Parse(args, "(s(ii))", &path,&x,&y)) return NULL;
+        e=xosfile_stamp(path);
+        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_Parse(args, "(si)", &path,&type))
+	{ PyErr_Clear();
+	  if (!PyArg_Parse(args, "(ss)", &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_Parse(args,"s",&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",&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_Parse(args,"s",&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",&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},
+        {"remove",      riscos_remove},
+	{"rename",	riscos_rename},
+	{"system",	riscos_system},
+	{"rmdir",	riscos_remove},
+	{"chdir",	riscos_chdir},
+	{"getcwd",	riscos_getcwd},
+	{"expand",      riscos_expand},
+	{"mkdir",	riscos_mkdir,1},
+	{"listdir",	riscos_listdir},
+	{"stat",	riscos_stat},
+	{"lstat",	riscos_stat},
+        {"chmod",	riscos_chmod},
+	{"utime",	riscos_utime},
+	{"settype",	riscos_settype},
+	{"getenv",      riscos_getenv},
+	{"putenv",      riscos_putenv},
+	{"delenv",      riscos_delenv},
+	{"getenvdict",  riscos_getenvdict,1},
+	{NULL,		NULL}		 /* Sentinel */
+};
+
+
+
+void
+initriscos()
+{
+	PyObject *m, *d;
+
+	m = Py_InitModule("riscos", riscos_methods);
+	d = PyModule_GetDict(m);
+
+	/* Initialize riscos.error exception */
+	RiscosError = PyString_FromString("riscos.error");
+	if (RiscosError == NULL || PyDict_SetItemString(d, "error", RiscosError) != 0)
+		Py_FatalError("can't define riscos.error");
+}