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root/Oni2/Daodan/src/Daodan_Patch.c

Comparing Daodan/src/Daodan_Patch.c (file contents):
Revision 346 by rossy, Tue Jun 9 12:00:41 2009 UTC vs.
Revision 677 by alloc, Sat Mar 2 23:46:33 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)
#	Line 8 | 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	>	*((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 23 | 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	>	*((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 88 | Line 91 | bool DDrPatch_Int16(short* dest, short v
91		return false;
92		}
93
94	<	bool DDrPatch_StrDup(int* dest, const char* value)
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);
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		}

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