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Cygwin: fetch local groups from local machine

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...even for domain accounts, otherwise local group membership is ignored.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2019-02-22 00:13:57 +01:00
parent 65c569f9fd
commit 14e2268853
1 changed files with 8 additions and 1 deletions
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9
winsup/cygwin/sec_auth.cc
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@ -400,11 +400,18 @@ get_user_local_groups (PWCHAR logonserver, PWCHAR domain,
DWORD cnt, tot; DWORD cnt, tot;
NET_API_STATUS ret; NET_API_STATUS ret;
ret = NetUserGetLocalGroups (logonserver, user, 0, LG_INCLUDE_INDIRECT, /* We want to know the membership in local groups on the current machine.
Thus, don't ask the logonserver, ask the local machine. In contrast
to most other NetUser functions, NetUserGetLocalGroups accepts the
username in DOMAIN\user form. */
WCHAR username[MAX_DOMAIN_NAME_LEN + UNLEN + 2];
wcpcpy (wcpcpy (wcpcpy (username, domain), L"\\"), user);
ret = NetUserGetLocalGroups (NULL, username, 0, LG_INCLUDE_INDIRECT,
(LPBYTE *) &buf, MAX_PREFERRED_LENGTH, (LPBYTE *) &buf, MAX_PREFERRED_LENGTH,
&cnt, &tot); &cnt, &tot);
if (ret) if (ret)
{ {
debug_printf ("username: %W", username);
__seterrno_from_win_error (ret); __seterrno_from_win_error (ret);
return false; return false;
} }