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Python wrapper function to establish controlling tty

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This commit is contained in:
Kovid Goyal 2022-06-05 15:36:05 +05:30
parent f20f4762a8
commit 76531d2f7a
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GPG Key ID: 06BC317B515ACE7C
2 changed files with 23 additions and 0 deletions
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19
kitty/child.c
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@ -180,8 +180,27 @@ spawn(PyObject *self UNUSED, PyObject *args) {
return PyLong_FromLong(pid);
}
static PyObject*
establish_controlling_tty(PyObject *self UNUSED, PyObject *args) {
const char *ttyname;
int stdin_fd, stdout_fd, stderr_fd;
if (!PyArg_ParseTuple(args, "siii", &ttyname, &stdin_fd, &stdout_fd, &stderr_fd)) return NULL;
int tfd = safe_open(ttyname, O_RDWR, 0);
if (tfd == -1) return PyErr_SetFromErrnoWithFilename(PyExc_OSError, ttyname);
#ifdef TIOCSCTTY
// On BSD open() does not establish the controlling terminal
if (ioctl(tfd, TIOCSCTTY, 0) == -1) return PyErr_SetFromErrno(PyExc_OSError);
#endif
if (dup2(tfd, stdin_fd) == -1) return PyErr_SetFromErrno(PyExc_OSError);
if (dup2(tfd, stdout_fd) == -1) return PyErr_SetFromErrno(PyExc_OSError);
if (dup2(tfd, stderr_fd) == -1) return PyErr_SetFromErrno(PyExc_OSError);
safe_close(tfd, __FILE__, __LINE__);
Py_RETURN_NONE;
}
static PyMethodDef module_methods[] = {
METHODB(spawn, METH_VARARGS),
METHODB(establish_controlling_tty, METH_VARARGS),
{NULL, NULL, 0, NULL} /* Sentinel */
};

4
kitty/fast_data_types.pyi
View File

@ -1379,3 +1379,7 @@ def shm_unlink(name: str) -> None:
def sigqueue(pid: int, signal: int, value: int) -> None:
pass
def establish_controlling_tty(ttyname: str, stdin: int, stdout: int, stderr: int) -> None:
pass