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[Darwin]: LHPrepareRemapMachMem Question

More for learning curiosity here: Why not call [mach_]vm_remap here? What do you get hand rolling your own mach_msg implementation?

libhooker/libhooker/mem/writeMem-darwin.c

Lines 191 to 221 in 4f85a68

privateFunc void LHPrepareRemapMachMem(vm_map_t task,
vm_address_t *target_address,
vm_size_t size,
vm_address_t mask,
int flags,
vm_map_t src_task,
vm_address_t src_address,
boolean_t copy,
vm_inherit_t inheritance,
mach_port_t reply_port,
union remap_msg *msg){
msg->Request.msgh_body.msgh_descriptor_count = 1;
msg->Request.src_task.name = src_task;
msg->Request.src_task.disposition = MACH_MSG_TYPE_COPY_SEND;
msg->Request.src_task.type = MACH_MSG_PORT_DESCRIPTOR;
msg->Request.NDR = NDR_record;
msg->Request.target_address = *target_address;
msg->Request.size = size;
msg->Request.mask = mask;
msg->Request.flags = flags;
msg->Request.src_address = src_address;
msg->Request.copy = copy;
msg->Request.inherit = inheritance;
msg->Request.Head.msgh_bits = MACH_MSGH_BITS_COMPLEX | MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, MACH_MSG_TYPE_MAKE_SEND_ONCE);
msg->Request.Head.msgh_remote_port = task;
msg->Request.Head.msgh_local_port = reply_port;
msg->Request.Head.msgh_id = 4813;
}

Thanks

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