diff options
Diffstat (limited to 'winsup/cygwin/grp.cc')
| -rw-r--r-- | winsup/cygwin/grp.cc | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/winsup/cygwin/grp.cc b/winsup/cygwin/grp.cc index 5c35be590..e9e657d88 100644 --- a/winsup/cygwin/grp.cc +++ b/winsup/cygwin/grp.cc @@ -365,10 +365,9 @@ internal_getgroups (int gidsetsize, __gid32_t *grouplist, cygpsid * srchsid) if (GetTokenInformation (hToken, TokenGroups, NULL, 0, &size) || GetLastError () == ERROR_INSUFFICIENT_BUFFER) { - char buf[size]; - TOKEN_GROUPS *groups = (TOKEN_GROUPS *) buf; + PTOKEN_GROUPS groups = (PTOKEN_GROUPS) alloca (size); - if (GetTokenInformation (hToken, TokenGroups, buf, size, &size)) + if (GetTokenInformation (hToken, TokenGroups, groups, size, &size)) { cygsid sid; |