C++ (Cpp) wifi_get_ifaces Examples

Example #1

File: halutil.cpp Project: AOSP-JF/platform_frameworks_opt_net_wifi

static int init() {

    ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
    if (ioctl_sock < 0) {
      printMsg("Bad socket: %d\n", ioctl_sock);
      return errno;
    } else {
      printMsg("Good socket: %d\n", ioctl_sock);
    }

    int ret = linux_set_iface_flags(ioctl_sock, "wlan0", 1);
    if (ret < 0) {
        return ret;
    }

    wifi_error res = wifi_initialize(&halHandle);
    if (res < 0) {
        return res;
    }

    res = wifi_get_ifaces(halHandle, &numIfaceHandles, &ifaceHandles);
    if (res < 0) {
        return res;
    }

    char buf[EVENT_BUF_SIZE];
    for (int i = 0; i < numIfaceHandles; i++) {
        if (wifi_get_iface_name(ifaceHandles[i], buf, sizeof(buf)) == WIFI_SUCCESS) {
            if (strcmp(buf, "wlan0") == 0) {
                printMsg("found interface %s\n", buf);
                wlan0Handle = ifaceHandles[i];
            } else if (strcmp(buf, "p2p0") == 0) {
                printMsg("found interface %s\n", buf);
                p2p0Handle = ifaceHandles[i];
            }
        }
    }

    return res;
}

Example #2

File: com_android_server_wifi_WifiNative.cpp Project: XperiaZProject/frameworks_opt_net_wifi

static int android_net_wifi_getInterfaces(JNIEnv *env, jclass cls) {
    int n = 0;
    wifi_handle halHandle = getWifiHandle(env, cls);
    wifi_interface_handle *ifaceHandles = NULL;
    int result = wifi_get_ifaces(halHandle, &n, &ifaceHandles);
    if (result < 0) {
        return result;
    }

    if (n < 0) {
        THROW(env, "android_net_wifi_getInterfaces no interfaces");
        return 0;
    }

    if (ifaceHandles == NULL) {
       THROW(env, "android_net_wifi_getInterfaces null interface array");
       return 0;
    }

    if (n > 8) {
        THROW(env, "Too many interfaces");
        return 0;
    }

    jlongArray array = (env)->NewLongArray(n);
    if (array == NULL) {
        THROW(env, "Error in accessing array");
        return 0;
    }

    jlong elems[8];
    for (int i = 0; i < n; i++) {
        elems[i] = reinterpret_cast<jlong>(ifaceHandles[i]);
    }
    env->SetLongArrayRegion(array, 0, n, elems);
    setStaticLongArrayField(env, cls, WifiIfaceHandleVarName, array);

    return (result < 0) ? result : n;
}