AIO-switch-updater/source/current_cfw.cpp

#include "current_cfw.hpp"
#include <switch.h>

bool isServiceRunning(const char *serviceName) {
    Handle handle;
    SmServiceName service_name = smEncodeName(serviceName);
    bool running = R_FAILED(smRegisterService(&handle, service_name, false, 1));
    svcCloseHandle(handle);
    if (!running)
        smUnregisterService(service_name);

    return running;
};

Result smAtmosphereHasService(bool *out, SmServiceName name) {
    u8 tmp = 0;
    Result rc = serviceDispatchInOut(smGetServiceSession(), 65100, name, tmp);
    if (R_SUCCEEDED(rc) && out)
        *out = tmp;
    return rc;
}

CFW getCFW(){
    bool res = false;
    smAtmosphereHasService(&res, (SmServiceName) {"rnx"});
    if(res) 
        return rnx;
    smAtmosphereHasService(&res, (SmServiceName) {"tx"});
    if(res)
        return sxos;
    return ams;
};