amxmodx/modules/fakemeta/pdata.cpp

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// vim: set ts=4 sw=4 tw=99 noet:
//
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
// Copyright (C) The AMX Mod X Development Team.
//
// This software is licensed under the GNU General Public License, version 3 or higher.
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
// https://alliedmods.net/amxmodx-license
//
// Fakemeta Module
//
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#include "fakemeta_amxx.h"
#if defined PAWN_CELL_SIZE
# if PAWN_CELL_SIZE == 16
# define CELL_MIN SHRT_MIN
# elif PAWN_CELL_SIZE == 32
# define CELL_MIN INT_MIN
# elif PAWN_CELL_SIZE == 64
# define CELL_MIN _I64_MIN
# endif
#else
# define CELL_MIN _I32_MIN
#endif
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#if defined WIN32
#define WINDOWS_LEAN_AND_MEAN
#include <windows.h>
#else
//implement these with setjmp later.
bool IsBadReadPtr(void *l, size_t size)
{
return false;
}
bool IsBadWritePtr(void *l, size_t size)
{
return false;
}
#endif
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static cell AMX_NATIVE_CALL set_pdata_int(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
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int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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iOffset += params[4];
#elif defined( __APPLE__ )
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
iOffset += params[4];
else
iOffset += params[5];
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#endif
int iValue=params[3];
*((int *)INDEXENT2(index)->pvPrivateData + iOffset) = iValue;
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_int(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
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int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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iOffset += params[3];
#elif defined( __APPLE__ )
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
iOffset += params[3];
else
iOffset += params[4];
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#endif
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return *((int *)INDEXENT2(index)->pvPrivateData + iOffset);
}
// Float
static cell AMX_NATIVE_CALL set_pdata_float(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
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int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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iOffset += params[4];
#elif defined( __APPLE__ )
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
iOffset += params[4];
else
iOffset += params[5];
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#endif
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float fValue=amx_ctof(params[3]);
*((float *)INDEXENT2(index)->pvPrivateData + iOffset) = fValue;
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_float(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
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int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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iOffset += params[3];
#elif defined( __APPLE__ )
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
iOffset += params[3];
else
iOffset += params[4];
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#endif
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return amx_ftoc(*((float *)INDEXENT2(index)->pvPrivateData + iOffset));
}
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static cell AMX_NATIVE_CALL get_pdata_string(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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iOffset += params[6];
#elif defined( __APPLE__ )
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 6 || params[7] == CELL_MIN)
iOffset += params[6];
else
iOffset += params[7];
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#endif
edict_t *pEdict = INDEXENT2(index);
char *szData;
if (params[5])
{
szData = *((char **)pEdict->pvPrivateData + iOffset);
} else {
szData = (char *)pEdict->pvPrivateData + iOffset;
}
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if (IsBadReadPtr(szData, 1))
{
return 0;
}
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MF_SetAmxString(amx, params[3], szData, params[4]);
return 1;
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}
static cell AMX_NATIVE_CALL set_pdata_string(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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iOffset += params[5];
#elif defined( __APPLE__ )
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 5 || params[6] == CELL_MIN)
iOffset += params[5];
else
iOffset += params[6];
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#endif
edict_t *pEdict = INDEXENT2(index);
char *szData;
int len;
char *data = MF_GetAmxString(amx, params[3], 0, &len);
if (params[4] == -1)
{
szData = (char *)pEdict->pvPrivateData + iOffset;
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if (IsBadWritePtr(szData, 1))
return 0;
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strcpy(szData, data);
} else {
szData = *((char **)pEdict->pvPrivateData + iOffset);
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if (IsBadWritePtr(szData, 1))
return 0;
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if (params[4] == 1)
{
free(szData);
szData = (char *)malloc(len + 1);
} else if (params[4] == 2) {
delete [] szData;
szData = new char[len + 1];
}
strcpy(szData, data);
*((char **)pEdict->pvPrivateData + iOffset) = szData;
}
return 1;
}
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static cell AMX_NATIVE_CALL get_pdata_ent(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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iOffset += params[3];
#elif defined( __APPLE__ )
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
iOffset += params[3];
else
iOffset += params[4];
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#endif
edict_t *pEdict = *(edict_t **)((char *)(INDEXENT2(index)->pvPrivateData) + iOffset);
if (pEdict == NULL)
{
return -1;
}
edict_t *pWorld = INDEXENT(0);
int ent = pEdict - pWorld;
if (ent < 0 || ent > gpGlobals->maxEntities)
{
return -2;
}
if (pEdict->free || pEdict->pvPrivateData == NULL)
{
return -1;
}
return ent;
}
static cell AMX_NATIVE_CALL set_pdata_ent(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
int entity = params[3];
CHECK_ENTITY(entity);
#if defined(__linux__)
offset += params[4];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
offset += params[4];
else
offset += params[5];
#endif
*(edict_t **)((char *)(INDEXENT2(index)->pvPrivateData) + offset) = INDEXENT2(entity);
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_bool(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
#if defined(__linux__)
offset += params[3];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
offset += params[3];
else
offset += params[4];
#endif
return *(bool *)((char *)INDEXENT2(index)->pvPrivateData + offset) ? TRUE : FALSE;
}
static cell AMX_NATIVE_CALL set_pdata_bool(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
bool value = params[3] ? true : false;
#if defined(__linux__)
offset += params[4];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
offset += params[4];
else
offset += params[5];
#endif
*(bool *)((char *)INDEXENT2(index)->pvPrivateData + offset) = value;
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_byte(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
#if defined(__linux__)
offset += params[3];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
offset += params[3];
else
offset += params[4];
#endif
return static_cast<cell>(*((byte *)INDEXENT2(index)->pvPrivateData + offset));
}
static cell AMX_NATIVE_CALL set_pdata_byte(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
byte value = static_cast<byte>(params[3]);
#if defined(__linux__)
offset += params[4];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
offset += params[4];
else
offset += params[5];
#endif
*((byte *)INDEXENT2(index)->pvPrivateData + offset) = value;
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_short(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
#if defined(__linux__)
offset += params[3];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
offset += params[3];
else
offset += params[4];
#endif
return static_cast<cell>(*(short *)((char *)INDEXENT2(index)->pvPrivateData + offset));
}
static cell AMX_NATIVE_CALL set_pdata_short(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
short value = static_cast<short>(params[3]);
#if defined(__linux__)
offset += params[4];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
offset += params[4];
else
offset += params[5];
#endif
*(short *)((char *)INDEXENT2(index)->pvPrivateData + offset) = value;
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_vector(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
#if defined(__linux__)
offset += params[4];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
offset += params[4];
else
offset += params[5];
#endif
cell *cpvec = MF_GetAmxAddr(amx, params[3]);
Vector vec = *(Vector *)((char *)INDEXENT2(index)->pvPrivateData + offset);
cpvec[0] = amx_ftoc(vec.x);
cpvec[1] = amx_ftoc(vec.y);
cpvec[2] = amx_ftoc(vec.z);
return 1;
}
static cell AMX_NATIVE_CALL set_pdata_vector(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
#if defined(__linux__)
offset += params[4];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
offset += params[4];
else
offset += params[5];
#endif
cell *pcvec = MF_GetAmxAddr(amx, params[3]);
Vector vec(amx_ctof(pcvec[0]), amx_ctof(pcvec[1]), amx_ctof(pcvec[2]));
*(Vector *)((char *)INDEXENT2(index)->pvPrivateData + offset) = vec;
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_ehandle(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
#if defined(__linux__)
offset += params[3];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 3)
offset += params[3];
else
offset += params[4];
#endif
edict_t *pEdict = *(edict_t **)((char * )(INDEXENT2(index)->pvPrivateData) + offset);
if (pEdict == NULL)
{
return -1;
}
edict_t *pWorld = INDEXENT(0);
int ent = pEdict - pWorld;
if (ent < 0 || ent > gpGlobals->maxEntities)
{
return -2;
}
if (pEdict->free || pEdict->pvPrivateData == NULL)
{
return -1;
}
int serialnumber = *(int *)((char *)INDEXENT2(index)->pvPrivateData + offset + 4);
if (pEdict->serialnumber != serialnumber)
{
return 0;
}
return ent;
}
static cell AMX_NATIVE_CALL set_pdata_ehandle(AMX *amx, cell *params)
{
int index = params[1];
CHECK_ENTITY(index);
int offset = params[2];
CHECK_OFFSET(offset);
int entity = params[3];
CHECK_ENTITY(entity);
#if defined(__linux__)
offset += params[4];
#elif defined(__APPLE__)
// Use Linux offset in older plugins
if (params[0] / sizeof(cell) == 4)
offset += params[4];
else
offset += params[5];
#endif
edict_t *pEntity = INDEXENT2(entity);
*(edict_t **)((char* )(INDEXENT2(index)->pvPrivateData) + offset) = pEntity;
if (pEntity)
{
*(int *)((char *)INDEXENT2(index)->pvPrivateData + offset + 4) = pEntity->serialnumber;
}
return 1;
}
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AMX_NATIVE_INFO pdata_natives[] =
{
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{ "get_pdata_int", get_pdata_int },
{ "set_pdata_int", set_pdata_int },
{ "get_pdata_float", get_pdata_float },
{ "set_pdata_float", set_pdata_float },
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{ "set_pdata_string", set_pdata_string },
{ "get_pdata_string", get_pdata_string },
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{ "get_pdata_ent", get_pdata_ent },
{ "set_pdata_ent", set_pdata_ent },
{ "get_pdata_bool", get_pdata_bool },
{ "set_pdata_bool", set_pdata_bool },
{ "get_pdata_byte", get_pdata_byte },
{ "set_pdata_byte", set_pdata_byte },
{ "get_pdata_short", get_pdata_short },
{ "set_pdata_short", set_pdata_short },
{ "get_pdata_vector", get_pdata_vector },
{ "set_pdata_vector", set_pdata_vector },
{ "get_pdata_ehandle", get_pdata_ehandle },
{ "set_pdata_ehandle", set_pdata_ehandle },
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{ NULL, NULL }
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};