It's an engine function, you are not going to find something in the HLSDK.
SV_TouchLinks is called from SV_LinkEdict.
And SV_LinkEdict is called from :
Code:
Direction Type Address Text
--------- ---- ------- ----
Up p LoadGamestate+44A call _SV_LinkEdict
Up p CreateEntityList+286 call _SV_LinkEdict
Up p SetMinMaxSize+FC call _SV_LinkEdict
Up p PF_droptofloor_I+C4 call _SV_LinkEdict
Up p PF_setorigin_I+37 call _SV_LinkEdict
Up p SV_movetest+17C call _SV_LinkEdict
Up p SV_movestep+355 call _SV_LinkEdict
Up p SV_NewChaseDir+24E call _SV_LinkEdict
Up p SV_NewChaseDir2+24A call _SV_LinkEdict
Up p SV_MoveToOrigin_I+CB call _SV_LinkEdict
Up p SV_StepDirection+8B call _SV_LinkEdict
Up p SV_FlyDirection+4F call _SV_LinkEdict
Up p SV_PushEntity+D6 call _SV_LinkEdict
Up p SV_PushMove+168 call _SV_LinkEdict
Up p SV_PushRotate+173 call _SV_LinkEdict
Up p SV_Physics_Follow+148 call _SV_LinkEdict
Up p SV_Physics_Noclip+106 call _SV_LinkEdict
Up p SV_Physics_Step+45D call _SV_LinkEdict
Up p SV_Physics+76 call _SV_LinkEdict
Up p SV_RunCmd+C0C call _SV_LinkEdict
Up p SV_SetupMove+7CC call _SV_LinkEdict
Up p SV_RestoreMove+16C call _SV_LinkEdict
From an AMXX native, you have a good chance with PF_ functions (EngFunc_DropToFloor, _SetOrigin).
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