// Status records the fuse.Status result of an operation.
func (r *LogEntry) Status(status syscall.Errno) syscall.Errno {
if r.status != "" {
panic(fmt.Sprintf("status already set to '%s', can't set to '%s'", r.status, status))
}
if status == OK {
r.status = "OK"
} else {
r.status = status.Error()
}
return status
}
func QueryMonitor() (status WiFiStatus) {
// Pointers to memory allocated by Windows. WlanFreeMemory must be called to free it
var (
ilist *WLAN_INTERFACE_INFO_LIST
nlist *WLAN_AVAILABLE_NETWORK_LIST
blist *WLAN_BSS_LIST
)
var (
guid GUID
e syscall.Errno
)
e = WlanEnumInterfaces(handle, 0, &ilist)
if e != ERROR_SUCCESS {
status.Error = "WlanEnumInterfaces: " + e.Error()
return status
}
defer WlanFreeMemory(uintptr(unsafe.Pointer(ilist)))
if ilist.dwNumberOfItems == 0 {
status.Error = "No wireless interfaces found"
return
}
// Search for a connected interface
for i := 0; i < int(ilist.dwNumberOfItems); i++ {
status.State = interfaceStates[ilist.InterfaceInfo[i].isState]
if ilist.InterfaceInfo[i].isState == wlan_interface_state_connected {
guid = ilist.InterfaceInfo[i].InterfaceGuid
break
}
if i == MAX_INDEX {
break
}
}
if status.State != interfaceStates[wlan_interface_state_connected] {
return
}
e = WlanGetAvailableNetworkList(handle, &guid,
WLAN_AVAILABLE_NETWORK_INCLUDE_ALL_ADHOC_PROFILES&WLAN_AVAILABLE_NETWORK_INCLUDE_ALL_MANUAL_HIDDEN_PROFILES,
0, &nlist)
if e != ERROR_SUCCESS {
status.Error = "WlanGetAvailableNetworkList: " + e.Error()
return
}
defer WlanFreeMemory(uintptr(unsafe.Pointer(nlist)))
for i := 0; i < int(nlist.dwNumberOfItems); i++ {
// Find the connected network
if nlist.Network[i].dwFlags&WLAN_AVAILABLE_NETWORK_CONNECTED == WLAN_AVAILABLE_NETWORK_CONNECTED {
// The character set of the SSID is undefined. For display make sure it only contains printable UTF-8 characters
ssid := make([]byte, nlist.Network[i].dot11Ssid.uSSIDLength)
for j, _ := range ssid {
ssid[j] = nlist.Network[i].dot11Ssid.ucSSID[j] & 0x7F
if ssid[j] < 32 {
ssid[j] = 32
}
}
status.Ssid = string(ssid)
e = WlanGetNetworkBssList(handle,
&guid,
&(nlist.Network[i].dot11Ssid),
nlist.Network[i].dot11BssType,
nlist.Network[i].bSecurityEnabled,
0,
&blist)
if e != ERROR_SUCCESS {
status.Error = "WlanGetNetworkBssList: " + e.Error()
return
}
defer WlanFreeMemory(uintptr(unsafe.Pointer(blist)))
// Find the best signal
for j := 0; j < int(blist.dwNumberOfItems); j++ {
if blist.wlanBssEntries[j].uLinkQuality > status.SignalQuality {
status.SignalQuality = blist.wlanBssEntries[j].uLinkQuality
status.Rssi = blist.wlanBssEntries[j].lRssi
}
}
if status.Rssi < minRssi {
minRssi = status.Rssi
}
if status.Rssi > maxRssi {
maxRssi = status.Rssi
}
status.RssiPercent = ((status.Rssi - minRssi) * 100) / (maxRssi - minRssi)
return
}
}
return
}