int
psutil_raise_ad_or_nsp(long pid) {
// Set exception to AccessDenied if pid exists else NoSuchProcess.
if (psutil_pid_exists(pid) == 0)
NoSuchProcess();
else
AccessDenied();
}
// XXX: This is no longer used as per
// https://github.com/giampaolo/psutil/pull/557#issuecomment-171912820
// Current implementation uses /proc instead.
// Left here just in case.
PyObject *
psutil_proc_exe(PyObject *self, PyObject *args) {
#if __NetBSD_Version__ >= 799000000
pid_t pid;
char pathname[MAXPATHLEN];
int error;
int mib[4];
int ret;
size_t size;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
if (pid == 0) {
// else returns ENOENT
return Py_BuildValue("s", "");
}
mib[0] = CTL_KERN;
mib[1] = KERN_PROC_ARGS;
mib[2] = pid;
mib[3] = KERN_PROC_PATHNAME;
size = sizeof(pathname);
error = sysctl(mib, 4, NULL, &size, NULL, 0);
if (error == -1) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
error = sysctl(mib, 4, pathname, &size, NULL, 0);
if (error == -1) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
if (size == 0 || strlen(pathname) == 0) {
ret = psutil_pid_exists(pid);
if (ret == -1)
return NULL;
else if (ret == 0)
return NoSuchProcess();
else
strcpy(pathname, "");
}
#if PY_MAJOR_VERSION >= 3
return PyUnicode_DecodeFSDefault(pathname);
#else
return Py_BuildValue("s", pathname);
#endif
#else
return Py_BuildValue("s", "");
#endif
}
int
psutil_raise_ad_or_nsp(long pid) {
// Set exception to AccessDenied if pid exists else NoSuchProcess.
int ret;
ret = psutil_pid_exists(pid);
if (ret == 0)
NoSuchProcess();
else if (ret == 1)
AccessDenied();
return ret;
}
/*
* Utility used for those syscalls which do not return a meaningful
* error that we can translate into an exception which makes sense.
* As such, we'll have to guess.
* On UNIX, if errno is set, we return that one (OSError).
* Else, if PID does not exist we assume the syscall failed because
* of that so we raise NoSuchProcess.
* If none of this is true we giveup and raise RuntimeError(msg).
* This will always set a Python exception and return NULL.
*/
int
psutil_raise_for_pid(long pid, char *syscall_name) {
// Set exception to AccessDenied if pid exists else NoSuchProcess.
if (errno != 0) {
// Unlikely we get here.
PyErr_SetFromErrno(PyExc_OSError);
return 0;
}
else if (psutil_pid_exists(pid) == 0) {
psutil_debug("%s syscall failed and PID %i no longer exists; "
"assume NoSuchProcess", syscall_name, pid);
NoSuchProcess("");
}
else {
PyErr_Format(PyExc_RuntimeError, "%s syscall failed", syscall_name);
}
return 0;
}
/*
* Return process pathname executable.
* Thanks to Robert N. M. Watson:
* http://fxr.googlebit.com/source/usr.bin/procstat/procstat_bin.c?v=8-CURRENT
*/
PyObject *
psutil_proc_exe(PyObject *self, PyObject *args) {
long pid;
char pathname[PATH_MAX];
int error;
int mib[4];
int ret;
size_t size;
const char *encoding_errs;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PATHNAME;
mib[3] = pid;
size = sizeof(pathname);
error = sysctl(mib, 4, pathname, &size, NULL, 0);
if (error == -1) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
if (size == 0 || strlen(pathname) == 0) {
ret = psutil_pid_exists(pid);
if (ret == -1)
return NULL;
else if (ret == 0)
return NoSuchProcess();
else
strcpy(pathname, "");
}
#if PY_MAJOR_VERSION >= 3
return PyUnicode_DecodeFSDefault(pathname);
#else
return Py_BuildValue("s", pathname);
#endif
}
