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modified post 411360b by Anonymous on Fri 10th May 2024 14:41
original post c02 by Anonymous on Fri 10th May 2024 14:04
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/*

1	1		/*
2	2		* MIT License
3	3		*
4	4		* Copyright (c) 2024 Roland Mainz <roland.mainz@nrubsig.org>
5	5		*
6	6		* Permission is hereby granted, free of charge, to any person obtaining a copy
7	7		* of this software and associated documentation files (the "Software"), to deal
8	8		* in the Software without restriction, including without limitation the rights
9	9		* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10	10		* copies of the Software, and to permit persons to whom the Software is
11	11		* furnished to do so, subject to the following conditions:
12	12		*
13	13		* The above copyright notice and this permission notice shall be included in all
14	14		* copies or substantial portions of the Software.
15	15		*
16	16		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17	17		* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18	18		* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19	19		* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20	20		* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21	21		* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22	22		* SOFTWARE.
23	23		*/
24	24
25	25		/*
26	26		* winsystemfilecachesize.c - get/set Win32 system file cache
27	27		*
28	28		* Written by Roland Mainz <roland.mainz@nrubsig.org>
29	29		*/
30	30
31	31		#include <windows.h>
32	32		#include <memoryapi.h>
33	33		#include <securitybaseapi.h>
34	34		#include <stdlib.h>
35	35		#include <stdbool.h>
	36	+	#include <ctype.h>
36	37		#include <stdio.h>
37	38
38	39		static int _dprint_level = 2;
39	40
40	41		#define DPRINTF(level, fmt) \
41	42		if ((level) <= _dprint_level) { \
42	43		(void)printf fmt ; \
43	44		}
44	45
45	46		static
46	47		bool set_token_privilege(HANDLE tok, const char *seprivname, bool enable_priv)
47	48		{
48	49		TOKEN_PRIVILEGES tp;
49	50		LUID luid;
50	51		bool res;
51	52
52	53		if(!LookupPrivilegeValueA(NULL, seprivname, &luid)) {
53	54		DPRINTF(1, ("set_token_privilege: "
54	55		"LookupPrivilegeValue(seprivname='%s') failed, "
55	56		"status=%d\n",
56	57		seprivname,
57	58		(int)GetLastError()));
58	59		res = false;
59	60		goto out;
60	61		}
61	62
62	63		tp.PrivilegeCount = 1;
63	64		tp.Privileges[0].Luid = luid;
64	65		tp.Privileges[0].Attributes = enable_priv?(SE_PRIVILEGE_ENABLED):0;
65	66
66	67		if(!AdjustTokenPrivileges(tok,
67	68		FALSE, &tp, sizeof(TOKEN_PRIVILEGES),
68	69		NULL, NULL)) {
69	70		DPRINTF(1, ("set_token_privilege: "
70	71		"AdjustTokenPrivileges() for '%s' failed, status=%d\n",
71	72		seprivname,
72	73		(int)GetLastError()));
73	74		res = false;
74	75		goto out;
75	76		}
76	77
77	78		res = true;
78	79		out:
79	80		DPRINTF(0,
80	81		("set_token_privilege(seprivname='%s',enable_priv=%d), res=%d\n",
81	82		seprivname, (int)enable_priv, (int)res));
82	83
83	84		return res;
84	85		}
85	86
	87	+	#if 0
86	88		static
87		-	int get_sysfscachesize(void)
	89	+	bool tagvalue_istagvalue(const char *str)
88	90		{
89		-	SIZE_T minimumFileCacheSize;
	91	+	return strstr(str, "=")?true:false;
90		-	SIZE_T maximumFileCacheSize;
	92	+	}
91		-	DWORD flags;
	93	+	#endif
92	94
93		-	if (GetSystemFileCacheSize(&minimumFileCacheSize,
	95	+	static
94		-	&maximumFileCacheSize,
	96	+	bool tagvalue_getsize_tvalue(const char str, SIZE_T dest)
95		-	&flags)) {
	97	+	{
96		-	(void)printf("minimumFileCacheSize=%lld\n"
	98	+	const char *s;
97		-	"maximumFileCacheSize=%lld\n"
	99	+
98		-	"flags=0x%x\n",
	100	+	s=strstr(str, "=");
99		-	(long long)minimumFileCacheSize,
	101	+	if (s != NULL) {
100		-	(long long)maximumFileCacheSize,
	102	+	s++;
101		-	(int)flags);
	103	+	if (isdigit((int)(*s))) {
	104	+	*dest = atoll(s);
102	106		}
107	107		}
	108	+