Gets information on the specified service from the services
    database that is referenced by the TCPIP$SERVICE logical name.
    If not found there, this function may invoke the BIND resolver to
    search TCPIP$ETC:SERVICES.DAT.
    Format
      #include  <netdb.h>
      struct servent *getservbyname  ( char *name, char *proto );

1  –  Arguments

 name
    A pointer to a string containing the name of the service about
    which information is required.
 proto
    A pointer to a string containing the name of the protocol (TCP or
    UDP) for which to search.

2  –  Description

    This function searches the services database until a matching
    service name is found or the end of file is encountered. If a
    protocol name is also supplied, searches must also match the
    protocol.
    This function returns a pointer to a servent structure containing
    the data from the network services database. For information
    about the servent structure, refer to servent Structure.
    All information is contained in a static area, so it must be
    copied to be saved.
    Related Functions
    See also getservbyport().

3  –  Return Values

    NULL               Indicates end of file or an error.
    x                  A pointer to a servent structure.