[MetaHook] SearchPattern function

By Nagi

 1 void *SearchPattern(void *pStartSearch, DWORD dwSearchLen, char *pPattern, DWORD dwPatternLen)
 2 {
 3     DWORD dwStartAddr = (DWORD)pStartSearch;
 4     DWORD dwEndAddr = dwStartAddr + dwSearchLen - dwPatternLen;
 5
 6     while (dwStartAddr < dwEndAddr)
 7     {
 8         bool found = true;
 9
10         for (DWORD i = 0; i < dwPatternLen; i++)
11         {
12             char code = *(char *)(dwStartAddr + i);
13
14             if (pPattern[i] != 0x2A && pPattern[i] != code)
15             {
16                 found = false;
17                 break;
18             }
19         }
20
21         if (found)
22             return (void *)dwStartAddr;
23
24         dwStartAddr++;
25     }
26
27     return 0;
28 }