amxmodx/modules/fakemeta/pdata.cpp

579 lines
12 KiB
C++

// 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
//
#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
#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
static cell AMX_NATIVE_CALL set_pdata_int(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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];
#endif
int iValue=params[3];
set_pdata<int>(TypeConversion.id_to_edict(index), iOffset, iValue);
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_int(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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];
#endif
return get_pdata<int>(TypeConversion.id_to_edict(index), iOffset);
}
// Float
static cell AMX_NATIVE_CALL set_pdata_float(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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];
#endif
float fValue=amx_ctof(params[3]);
set_pdata<float>(TypeConversion.id_to_edict(index), iOffset, fValue);
return 1;
}
static cell AMX_NATIVE_CALL get_pdata_float(AMX *amx, cell *params)
{
int index=params[1];
CHECK_ENTITY(index);
int iOffset=params[2];
CHECK_OFFSET(iOffset);
#if defined( __linux__ )
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];
#endif
return amx_ftoc(get_pdata<float>(TypeConversion.id_to_edict(index), iOffset));
}
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__ )
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];
#endif
edict_t *pEdict = TypeConversion.id_to_edict(index);
char *szData;
if (params[5])
{
szData = get_pdata<char*>(pEdict, iOffset);
} else {
szData = get_pdata_direct<char*>(pEdict, iOffset);
}
if (IsBadReadPtr(szData, 1))
{
return 0;
}
MF_SetAmxString(amx, params[3], szData, params[4]);
return 1;
}
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__ )
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];
#endif
edict_t *pEdict = TypeConversion.id_to_edict(index);
char *szData;
int len;
char *data = MF_GetAmxString(amx, params[3], 0, &len);
if (params[4] == -1)
{
szData = get_pdata_direct<char*>(pEdict, iOffset);
if (IsBadWritePtr(szData, 1))
return 0;
strcpy(szData, data);
} else {
szData = get_pdata<char*>(pEdict, iOffset);
if (IsBadWritePtr(szData, 1))
return 0;
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);
set_pdata<char*>(pEdict, iOffset, szData);
}
return 1;
}
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__ )
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];
#endif
edict_t *pEdict = get_pdata<edict_t*>(TypeConversion.id_to_edict(index), 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
set_pdata<edict_t*>(TypeConversion.id_to_edict(index), offset, TypeConversion.id_to_edict(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 get_pdata<bool>(TypeConversion.id_to_edict(index), 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
set_pdata<bool>(TypeConversion.id_to_edict(index), 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>(get_pdata<byte>(TypeConversion.id_to_edict(index), 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
set_pdata<byte>(TypeConversion.id_to_edict(index), 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>(get_pdata<short>(TypeConversion.id_to_edict(index), 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
set_pdata<short>(TypeConversion.id_to_edict(index), 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 = get_pdata<Vector>(TypeConversion.id_to_edict(index), 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]));
set_pdata<Vector>(TypeConversion.id_to_edict(index), 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 = get_pdata<edict_t*>(TypeConversion.id_to_edict(index), 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 = get_pdata<int>(TypeConversion.id_to_edict(index), 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 = TypeConversion.id_to_edict(entity);
set_pdata<edict_t*>(TypeConversion.id_to_edict(index), offset, pEntity);
if (pEntity)
{
set_pdata<int>(TypeConversion.id_to_edict(index), offset + 4, pEntity->serialnumber);
}
return 1;
}
AMX_NATIVE_INFO pdata_natives[] =
{
{ "get_pdata_int", get_pdata_int },
{ "set_pdata_int", set_pdata_int },
{ "get_pdata_float", get_pdata_float },
{ "set_pdata_float", set_pdata_float },
{ "set_pdata_string", set_pdata_string },
{ "get_pdata_string", get_pdata_string },
{ "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 },
{ NULL, NULL }
};