cosmopolitan/libc/calls/ntsetprivilege.c

43 lines
2.7 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/nt/privilege.h"
#include "libc/nt/struct/tokenprivileges.h"
#include "libc/calls/internal.h"
/**
* Sets NT permission thing, e.g.
*
* int64_t htoken;
* if (OpenProcessToken(GetCurrentProcess(),
* kNtTokenAdjustPrivileges | kNtTokenQuery, &htoken)) {
* ntsetprivilege(htoken, u"SeManageVolumePrivilege", kNtSePrivilegeEnabled);
* CloseHandle(htoken);
* }
*/
textwindows bool32 ntsetprivilege(int64_t token, const char16_t *name,
uint32_t attrs) {
struct NtTokenPrivileges tp;
tp.PrivilegeCount = 1;
tp.Privileges[0].Attributes = attrs;
return LookupPrivilegeValue(NULL, name, &tp.Privileges[0].Luid) &&
AdjustTokenPrivileges(token, false, &tp,
sizeof(struct NtTokenPrivileges), NULL, NULL);
}