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Issue #6697: Check that _PyUnicode_AsString() result is not NULL

This commit is contained in:
Victor Stinner 2010-05-19 00:34:15 +00:00
parent f3f22a278d
commit 386fe71de1
1 changed files with 21 additions and 5 deletions
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26
Python/pythonrun.c
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@ -138,8 +138,8 @@ add_flag(int flag, const char *envs)
static char*
get_codeset(void)
{
char* codeset;
PyObject *codec, *name;
char* codeset, *name_str;
PyObject *codec, *name = NULL;
codeset = nl_langinfo(CODESET);
if (!codeset || codeset[0] == '\0')
@ -154,12 +154,16 @@ get_codeset(void)
if (!name)
goto error;
codeset = strdup(_PyUnicode_AsString(name));
name_str = _PyUnicode_AsString(name);
if (name == NULL)
goto error;
codeset = strdup(name_str);
Py_DECREF(name);
return codeset;
error:
Py_XDECREF(codec);
Py_XDECREF(name);
return NULL;
}
#endif
@ -1060,22 +1064,34 @@ PyRun_InteractiveOneFlags(FILE *fp, const char *filename, PyCompilerFlags *flags
if (!oenc)
return -1;
enc = _PyUnicode_AsString(oenc);
if (enc == NULL)
return -1;
}
v = PySys_GetObject("ps1");
if (v != NULL) {
v = PyObject_Str(v);
if (v == NULL)
PyErr_Clear();
else if (PyUnicode_Check(v))
else if (PyUnicode_Check(v)) {
ps1 = _PyUnicode_AsString(v);
if (ps1 == NULL) {
PyErr_Clear();
ps1 = "";
}
}
}
w = PySys_GetObject("ps2");
if (w != NULL) {
w = PyObject_Str(w);
if (w == NULL)
PyErr_Clear();
else if (PyUnicode_Check(w))
else if (PyUnicode_Check(w)) {
ps2 = _PyUnicode_AsString(w);
if (ps2 == NULL) {
PyErr_Clear();
ps2 = "";
}
}
}
arena = PyArena_New();
if (arena == NULL) {