|
// APIInfo.cpp: implementation of the CAPIInfo class.
//
//////////////////////////////////////////////////////////////////////
#include <windows.h>
#include "APIInfo.h"
#include "util.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
#ifdef WIN95
APIINFO g_apiinfo_buf[1000];
#endif
CAPIInfo::CAPIInfo()
{
m_count =0;
m_pInfo =NULL;
}
CAPIInfo::~CAPIInfo()
{
DeleteAll();
}
APIINFO *CAPIInfo::Add(char *module_name, char *api_name, char *my_api_name,
int param_count, APIFUNC old_api, APIFUNC my_api, char *my_friend_api_name, int start_pos)
{
#ifdef WIN95
APIINFO *pinfo =(APIINFO *)&g_apiinfo_buf[m_count];
#else
APIINFO *pinfo =(APIINFO *)malloc(sizeof(APIINFO));
#endif
strcpy(pinfo->module_name, module_name);
strcpy(pinfo->api_name, api_name);
strcpy(pinfo->my_api_name, my_api_name);
pinfo->param_count =param_count;
pinfo->old_api =old_api;
pinfo->my_api =my_api;
if(my_friend_api_name)
strcpy(pinfo->my_friend_api_name, my_friend_api_name);
else pinfo->my_friend_api_name[0] =0;
pinfo->start_pos =start_pos;
pinfo->f_hooked =false;
#ifdef WIN95
pinfo->hMutex =CreateMutex(NULL, FALSE, api_name);
#endif
#ifdef WINNT
InitializeCriticalSection(&pinfo->cs);
#endif
pinfo->pnext =NULL;
APIINFO *pinfo2 =m_pInfo;
while(pinfo2 !=NULL && pinfo2->pnext !=NULL)
pinfo2 =pinfo2->pnext;
if(pinfo2 ==NULL) m_pInfo =pinfo; // this is head of m_pInfo
else pinfo2->pnext =pinfo;
m_count++;
return pinfo;
}
int CAPIInfo::DeleteAll()
{
APIINFO *pinfo =m_pInfo, *pinfo2;
while(pinfo)
{
pinfo2 =pinfo;
pinfo =pinfo->pnext;
#ifdef WIN95
if (pinfo2->hMutex)
CloseHandle(pinfo2->hMutex);
#else
DeleteCriticalSection(&pinfo2->cs);
free(pinfo2);
#endif
}
m_pInfo =NULL;
m_count =0;
return 0;
}
APIINFO *CAPIInfo::FindByMyAPI(APIFUNC my_api)
{
APIINFO *pinfo =m_pInfo;
while(pinfo)
{
if(pinfo->my_api ==my_api)
break;
pinfo =pinfo->pnext;
}
return pinfo;
}
APIINFO *CAPIInfo::FindByOldAPI(APIFUNC old_api)
{
APIINFO *pinfo =m_pInfo;
while(pinfo)
{
if((BYTE *)pinfo->old_api+pinfo->start_pos ==(BYTE *)old_api)
break;
pinfo =pinfo->pnext;
}
return pinfo;
}
APIINFO *CAPIInfo::FindByAPIName(char *api_name)
{
APIINFO *pinfo =m_pInfo;
while(pinfo)
{
if(!strcmp(pinfo->api_name, api_name))
break;
pinfo =pinfo->pnext;
}
return pinfo;
}
APIINFO *CAPIInfo::FindByMyAPIName(char *my_api_name)
{
APIINFO *pinfo =m_pInfo;
while(pinfo)
{
if(!strcmp(pinfo->my_api_name, my_api_name))
break;
pinfo =pinfo->pnext;
}
return pinfo;
}
int CAPIInfo::lock(APIINFO *pinfo)
{
#ifdef WIN95
if((pinfo->m_hMutex =OpenMutex(MUTEX_ALL_ACCESS, FALSE, pinfo->api_name)) !=NULL)
WaitForSingleObject(pinfo->m_hMutex, INFINITE);
#else
EnterCriticalSection(&pinfo->cs);
#endif
return 0;
}
int CAPIInfo::unlock(APIINFO *pinfo)
{
#ifdef WIN95
if(pinfo->m_hMutex)
{
ReleaseMutex(pinfo->m_hMutex);
CloseHandle(pinfo->m_hMutex);
pinfo->m_hMutex =NULL;
}
#else
LeaveCriticalSection(&pinfo->cs);
#endif
return 0;
}
|
By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.
If a file you wish to view isn't highlighted, and is a text file (not binary), please
let us know and we'll add colourisation support for it.
This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.
A list of licenses authors might use can be found here