| /*- |
| * Copyright (c) 2009 Michihiro NAKAJIMA |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * $FreeBSD$ |
| */ |
| |
| #if defined(__CYGWIN__) |
| #define _WIN32_WINNT 0x0500 |
| #define WINVER 0x0500 |
| |
| #include "bsdtar_platform.h" |
| #include <errno.h> |
| #include <stddef.h> |
| #include <sys/utime.h> |
| #include <sys/stat.h> |
| #include <process.h> |
| #include <stdlib.h> |
| #include <wchar.h> |
| #include <windows.h> |
| #include <sddl.h> |
| |
| #include "bsdtar.h" |
| |
| #ifndef LIST_H |
| static int |
| _is_privileged(HANDLE thandle, const char *sidlist[]) |
| { |
| TOKEN_USER *tuser; |
| TOKEN_GROUPS *tgrp; |
| DWORD bytes; |
| PSID psid; |
| DWORD i, g; |
| int member; |
| |
| psid = NULL; |
| tuser = NULL; |
| tgrp = NULL; |
| member = 0; |
| for (i = 0; sidlist[i] != NULL && member == 0; i++) { |
| if (psid != NULL) |
| LocalFree(psid); |
| /* mingw/cygwin: incorrectly prototypes arg 1 as LPSTR |
| * instead of LPCSTR. Work around it here |
| */ |
| if (ConvertStringSidToSidA((char *)sidlist[i], &psid) == 0) { |
| errno = EPERM; |
| return (-1); |
| } |
| if (tuser == NULL) { |
| GetTokenInformation(thandle, TokenUser, NULL, 0, &bytes); |
| tuser = malloc(bytes); |
| if (tuser == NULL) { |
| errno = ENOMEM; |
| member = -1; |
| break; |
| } |
| if (GetTokenInformation(thandle, TokenUser, tuser, bytes, &bytes) == 0) { |
| errno = EPERM; |
| member = -1; |
| break; |
| } |
| } |
| member = EqualSid(tuser->User.Sid, psid); |
| if (member) |
| break; |
| if (tgrp == NULL) { |
| GetTokenInformation(thandle, TokenGroups, NULL, 0, &bytes); |
| tgrp = malloc(bytes); |
| if (tgrp == NULL) { |
| errno = ENOMEM; |
| member = -1; |
| break; |
| } |
| if (GetTokenInformation(thandle, TokenGroups, tgrp, bytes, &bytes) == 0) { |
| errno = EPERM; |
| member = -1; |
| break; |
| } |
| } |
| for (g = 0; g < tgrp->GroupCount; g++) { |
| member = EqualSid(tgrp->Groups[g].Sid, psid); |
| if (member) |
| break; |
| } |
| } |
| LocalFree(psid); |
| free(tuser); |
| free(tgrp); |
| |
| return (member); |
| } |
| |
| int |
| bsdtar_is_privileged(struct bsdtar *bsdtar) |
| { |
| HANDLE thandle; |
| int ret; |
| const char *sidlist[] = { |
| "S-1-5-32-544", /* Administrators */ |
| "S-1-5-32-551", /* Backup Operators */ |
| NULL |
| }; |
| |
| (void)bsdtar;/* UNUSED */ |
| if (OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &thandle) == 0) { |
| bsdtar_warnc(bsdtar, EPERM, "Failed to check privilege"); |
| return (0); |
| } |
| ret = _is_privileged(thandle, sidlist); |
| if (ret < 0) { |
| bsdtar_warnc(bsdtar, errno, "Failed to check privilege"); |
| return (0); |
| } |
| return (ret); |
| } |
| |
| |
| #endif /* LIST_H */ |
| |
| #endif |