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raise an OSError for invalid fds #4991

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Benjamin Peterson 2009-01-19 00:08:08 +00:00
parent b6e112bd95
commit 5848d1ff35
3 changed files with 27 additions and 0 deletions
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20
Modules/_fileio.c
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@ -119,6 +119,24 @@ dircheck(PyFileIOObject* self, char *name)
return 0;
}
static int
check_fd(int fd)
{
#if defined(HAVE_FSTAT)
struct stat buf;
if (fstat(fd, &buf) < 0 && errno == EBADF) {
PyObject *exc;
char *msg = strerror(EBADF);
exc = PyObject_CallFunction(PyExc_OSError, "(is)",
EBADF, msg);
PyErr_SetObject(PyExc_OSError, exc);
Py_XDECREF(exc);
return -1;
}
#endif
return 0;
}
static int
fileio_init(PyObject *oself, PyObject *args, PyObject *kwds)
@ -151,6 +169,8 @@ fileio_init(PyObject *oself, PyObject *args, PyObject *kwds)
"Negative filedescriptor");
return -1;
}
if (check_fd(fd))
return -1;
}
else {
PyErr_Clear();