ViewVC Help

View File | Revision Log | View Changeset | Root Listing

root/Oni2/Daodan/src/Daodan_Patch.c

Comparing Daodan/src/Daodan_Patch.c (file contents):
Revision 272 by rossy, Tue Mar 17 09:06:00 2009 UTC vs.
Revision 689 by alloc, Mon Mar 4 15:52:19 2013 UTC

#	Line 1 | Line 1
1		#include "Daodan_Patch.h"
2		#include <windows.h>
3	+	#include <stdlib.h>
4	+	#include <string.h>
5
6		bool DDrPatch_MakeJump(void* from, void* to)
7		{
#	Line 7 | Line 9 | bool DDrPatch_MakeJump(void* from, void*
9
10		if (VirtualProtect(from, 5, PAGE_EXECUTE_READWRITE, &oldp))
11		{
12	<	*(char*)from++ = 0xe9; // jmp rel32
12	>	*((unsigned char*)from) = 0xe9; // jmp rel32
13	>	from = (char*)from + 1;
14		*(int*)from = (unsigned int)to - (unsigned int)from - 4;
15		VirtualProtect(from, 5, oldp, &oldp);
16		return true;
#	Line 22 | Line 25 | bool DDrPatch_MakeCall(void* from, void*
25
26		if (VirtualProtect(from, 5, PAGE_EXECUTE_READWRITE, &oldp))
27		{
28	<	*(char*)from++ = 0xe8; // call rel32
28	>	*((unsigned char*)from) = 0xe8; // call rel32
29	>	from = (char*)from + 1;
30		*(int*)from = (unsigned int)to - (unsigned int)from - 4;
31		VirtualProtect(from, 5, oldp, &oldp);
32		return true;
#	Line 31 | Line 35 | bool DDrPatch_MakeCall(void* from, void*
35		return false;
36		}
37
38	<	bool DDrPatch_String(char* dest, const char* string, int length)
38	>	bool DDrPatch_String(char* dest, const unsigned char* string, int length)
39		{
40		DWORD oldp;
41
#	Line 45 | Line 49 | bool DDrPatch_String(char* dest, const c
49		return false;
50		}
51
52	<	bool DDrPatch_Byte(char* dest, char value)
52	>	bool DDrPatch_Byte(char* dest, unsigned char value)
53		{
54		DWORD oldp;
55
#	Line 59 | Line 63 | bool DDrPatch_Byte(char* dest, char valu
63		return false;
64		}
65
66	<	bool DDrPatch_Int32(int* dest, int value)
66	>	bool DDrPatch_Int32(int* dest, unsigned int value)
67		{
68		DWORD oldp;
69
#	Line 73 | Line 77 | bool DDrPatch_Int32(int* dest, int value
77		return false;
78		}
79
80	<	bool DDrPatch_Int16(short* dest, short value)
80	>	bool DDrPatch_Int16(short* dest, unsigned short value)
81		{
82		DWORD oldp;
83
#	Line 84 | Line 88 | bool DDrPatch_Int16(short* dest, short v
88		return true;
89		}
90		else
91	+	return false;
92	+	}
93	+
94	+	bool DDrPatch__strdup(int* dest, const char* value)
95	+	{
96	+	DWORD oldp;
97	+
98	+	if (VirtualProtect(dest, 4, PAGE_EXECUTE_READWRITE, &oldp))
99	+	{
100	+	*dest = (int)_strdup(value);
101	+	VirtualProtect(dest, 4, oldp, &oldp);
102	+	return true;
103	+	}
104	+	else
105	+	return false;
106	+	}
107	+
108	+	bool DDrPatch_NOOP(char* dest, unsigned int length)
109	+	{
110	+	DWORD oldp;
111	+
112	+	if (VirtualProtect(dest, length, PAGE_EXECUTE_READWRITE, &oldp))
113	+	{
114	+	memset(dest, 0x90, length);
115	+	VirtualProtect(dest, length, oldp, &oldp);
116	+	return true;
117	+	}
118	+	else
119		return false;
120		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines (old)
>	Changed lines (new)