reactos/drivers/net/tcpip/tcpip/proto.c

   1 #include "precomp.h"
   2
   3 NTSTATUS TiGetProtocolNumber(
   4   PUNICODE_STRING FileName,
   5   PULONG Protocol)
   6 /*
   7  * FUNCTION: Returns the protocol number from a file name
   8  * ARGUMENTS:
   9  *     FileName = Pointer to string with file name
  10  *     Protocol = Pointer to buffer to put protocol number in
  11  * RETURNS:
  12  *     Status of operation
  13  */
  14 {
  15   UNICODE_STRING us;
  16   NTSTATUS Status;
  17   ULONG Value;
  18   PWSTR Name;
  19
  20   TI_DbgPrint(MAX_TRACE, ("Called. FileName (%wZ).\n", FileName));
  21
  22   Name = FileName->Buffer;
  23
  24   if (*Name++ != (WCHAR)L'\\')
  25     return STATUS_UNSUCCESSFUL;
  26
  27   if (*Name == (WCHAR)NULL)
  28     return STATUS_UNSUCCESSFUL;
  29
  30   RtlInitUnicodeString(&us, Name);
  31
  32   Status = RtlUnicodeStringToInteger(&us, 10, &Value);
  33   if (!NT_SUCCESS(Status) || ((Value > 255)))
  34     return STATUS_UNSUCCESSFUL;
  35
  36   *Protocol = Value;
  37
  38   return STATUS_SUCCESS;
  39 }
  40