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#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <Python.h>
#include <errno.h>
static PyObject *c_make_file_dict(self, args)
PyObject *self;
PyObject *args;
{
char *filename, filetype[5];
struct stat sbuf;
mode_t mode;
if (!PyArg_ParseTuple(args, "s", &filename)) return NULL;
if (lstat(filename, &sbuf) != 0) {
if (errno == ENOENT || errno == ENOTDIR)
return Py_BuildValue("{s:s}", "type", NULL);
else {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
}
mode = sbuf.st_mode;
/* Build return dictionary from stat struct */
if (S_ISREG(mode) || S_ISDIR(mode) || S_ISSOCK(mode) || S_ISFIFO(mode)) {
/* Regular files, directories, sockets, and fifos */
if S_ISREG(mode) strcpy(filetype, "reg");
else if S_ISDIR(mode) strcpy(filetype, "dir");
else if S_ISSOCK(mode) strcpy(filetype, "sock");
else strcpy(filetype, "fifo");
return Py_BuildValue("{s:s,s:l,s:i,s:i,s:i,s:l,s:i,s:i,s:l,s:l}",
"type", filetype,
"size", (long int)sbuf.st_size,
"perms", (int)(mode & S_IRWXU),
"uid", (int)sbuf.st_uid,
"gid", (int)sbuf.st_gid,
"inode", (long int)sbuf.st_ino,
"devloc", (int)sbuf.st_dev,
"nlink", (int)sbuf.st_nlink,
"mtime", (long int)sbuf.st_mtime,
"atime", (long int)sbuf.st_atime);
} else if S_ISLNK(mode) {
/* Symbolic links */
char linkname[1024];
int len_link = readlink(filename, linkname, 1023);
if (len_link < 0) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
linkname[len_link] = '\0';
return Py_BuildValue("{s:s,s:l,s:i,s:i,s:i,s:l,s:i,s:i,s:s}",
"type", "sym",
"size", (long int)sbuf.st_size,
"perms", (int)(mode & S_IRWXU),
"uid", (int)sbuf.st_uid,
"gid", (int)sbuf.st_gid,
"inode", (long int)sbuf.st_ino,
"devloc", (int)sbuf.st_dev,
"nlink", (int)sbuf.st_nlink,
"linkname", linkname);
} else if (S_ISCHR(mode) || S_ISBLK(mode)) {
/* Device files */
char devtype[2];
int devnums = (int)sbuf.st_rdev;
if S_ISCHR(mode) strcpy(devtype, "c");
else strcpy(devtype, "b");
return Py_BuildValue("{s:s,s:l,s:i,s:i,s:i,s:l,s:i,s:i,s:O}",
"type", "dev",
"size", (long int)sbuf.st_size,
"perms", (int)(mode & S_IRWXU),
"uid", (int)sbuf.st_uid,
"gid", (int)sbuf.st_gid,
"inode", (long int)sbuf.st_ino,
"devloc", (int)sbuf.st_dev,
"nlink", (int)sbuf.st_nlink,
"devnums", Py_BuildValue("(s,i,i)", devtype,
devnums >> 8,
devnums & 0xff),
"mtime", (long int)sbuf.st_mtime,
"atime", (long int)sbuf.st_atime);
} else {
/* Unrecognized file type - pretend it isn't there */
errno = ENOENT;
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
}
static PyObject *long2str(self, args)
PyObject *self;
PyObject *args;
{
unsigned char s[7];
int sindex;
unsigned long long int l;
PyObject *pylong;
if (!PyArg_ParseTuple(args, "O", &pylong)) return NULL;
l = PyLong_AsUnsignedLongLong(pylong);
for(sindex = 0; sindex <= 6; sindex++) {
s[sindex] = l % 256;
l /= 256;
}
return Py_BuildValue("s#", s, 7);
}
static PyObject *str2long(self, args)
PyObject *self;
PyObject *args;
{
unsigned char *s;
unsigned long long int l = 0;
int sindex, ssize;
if (!PyArg_ParseTuple(args, "s#", &s, &ssize)) return NULL;
if (ssize != 7) return Py_BuildValue("i", -1);
for(sindex=6; sindex >= 0; sindex--)
l = l*256 + s[sindex];
return PyLong_FromLongLong(l);
}
static PyMethodDef CMethods[] = {
{"make_file_dict", c_make_file_dict, METH_VARARGS,
"Make dictionary from file stat"},
{"long2str", long2str, METH_VARARGS,
"Convert long int to 7 byte string"},
{"str2long", str2long, METH_VARARGS,
"Convert 7 byte string to long int"},
{NULL, NULL, 0, NULL}
};
void initC(void)
{
(void) Py_InitModule("C", CMethods);
}
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