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Patch #1511317: don't crash on invalid hostname info

This commit is contained in:
Georg Brandl 2006-08-14 22:10:24 +00:00
parent d76bd69712
commit 9dc7b7ce82
1 changed files with 12 additions and 9 deletions
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21
Modules/socketmodule.c
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@ -3041,17 +3041,20 @@ gethost_common(struct hostent *h, struct sockaddr *addr, int alen, int af)
if ((addr_list = PyList_New(0)) == NULL)
goto err;
for (pch = h->h_aliases; *pch != NULL; pch++) {
int status;
tmp = PyString_FromString(*pch);
if (tmp == NULL)
goto err;
/* SF #1511317: h_aliases can be NULL */
if (h->h_aliases) {
for (pch = h->h_aliases; *pch != NULL; pch++) {
int status;
tmp = PyString_FromString(*pch);
if (tmp == NULL)
goto err;
status = PyList_Append(name_list, tmp);
Py_DECREF(tmp);
status = PyList_Append(name_list, tmp);
Py_DECREF(tmp);
if (status)
goto err;
if (status)
goto err;
}
}
for (pch = h->h_addr_list; *pch != NULL; pch++) {