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NAME

       getservent, getservbyname, getservbyport - get service entry

SYNOPSIS

       #include <network.h>

       struct servent *getservbyname(const char *name, const char *proto);

       struct servent *getservbyport(int port, const char *proto);

DESCRIPTION

       The  getservbyname()  function returns a servent structure

       for the line from /etc/services that matches  the  service

       name using protocol proto.

       The  getservbyport()  function returns a servent structure

       for the line that matches the port port given  in  network

       byte order using protocol proto.

       The servent structure is defined in <netdb.h> as follows:

              struct servent {

                      char    *s_name;        /* official service name */

                      char    **s_aliases;    /* alias list */

                      int     s_port;         /* port number */

                      char    *s_proto;       /* protocol to use */

              }

       The members of the servent structure are:

       s_name The official name of the service.

       s_aliases

              A zero terminated list of alternative names for the

              service.

       s_port The  port  number  for the service given in network

              byte order.

       s_proto

              The name of the protocol to use with this  service.

RETURN VALUE

       The   getservbyname()  and  getservbyport()

       functions return the servent structure, or a NULL  pointer

       if an error occurs.