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windows: Avoid panic if USB Product name is empty

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This commit is contained in:
Cristian Maglie
2023-01-02 14:44:56 +01:00
parent 0c6a048ffa
commit e6cff1a986
1 changed files with 6 additions and 4 deletions
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10
enumerator/usb_windows.go
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@@ -347,10 +347,12 @@ func retrievePortDetailsFromDevInfo(device *deviceInfo, details *PortDetails) er
the result of spdrpFriendlyName is therefore unique and suitable as an alternative string to for a port choice */
n := uint32(0)
setupDiGetDeviceRegistryProperty(device.set, &device.data, spdrpFriendlyName /* spdrpDeviceDesc */, nil, nil, 0, &n)
buff := make([]uint16, n*2)
buffP := (*byte)(unsafe.Pointer(&buff[0]))
if setupDiGetDeviceRegistryProperty(device.set, &device.data, spdrpFriendlyName /* spdrpDeviceDesc */, nil, buffP, n, &n) {
details.Product = syscall.UTF16ToString(buff[:])
if n > 0 {
buff := make([]uint16, n*2)
buffP := (*byte)(unsafe.Pointer(&buff[0]))
if setupDiGetDeviceRegistryProperty(device.set, &device.data, spdrpFriendlyName /* spdrpDeviceDesc */, nil, buffP, n, &n) {
details.Product = syscall.UTF16ToString(buff[:])
}
}
return nil