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posix_getlogin(): Handle the possibility that getlogin() can return

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NULL without setting errno; observed on Linux
                   Mandrake 7.2 by an anonymous user.

This closes bug #124758.
This commit is contained in:
Fred Drake 2000-12-06 21:24:28 +00:00
parent 49312a52ec
commit a30680b240
1 changed files with 12 additions and 3 deletions
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15
Modules/posixmodule.c
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@ -1904,12 +1904,21 @@ posix_getlogin(PyObject *self, PyObject *args)
PyObject *result = NULL; PyObject *result = NULL;
if (PyArg_ParseTuple(args, ":getlogin")) { if (PyArg_ParseTuple(args, ":getlogin")) {
char *name = getlogin(); char *name;
int old_errno = errno;
if (name == NULL) errno = 0;
posix_error(); name = getlogin();
if (name == NULL) {
if (errno)
posix_error();
else
PyErr_SetString(PyExc_OSError,
"unexpected NULL from getlogin()");
}
else else
result = PyString_FromString(name); result = PyString_FromString(name);
errno = old_errno;
} }
return result; return result;
} }