GETRPCENT(3)              (2020-04-11)               GETRPCENT(3)

     NAME
          getrpcent, getrpcbyname, getrpcbynumber, setrpcent,
          endrpcent - get RPC entry

     SYNOPSIS
          #include <netdb.h>

          struct rpcent *getrpcent(void);

          struct rpcent *getrpcbyname(const char *name);

          struct rpcent *getrpcbynumber(int number);

          void setrpcent(int stayopen);

          void endrpcent(void);

     DESCRIPTION
          The getrpcent(), getrpcbyname(), and getrpcbynumber() func-
          tions each return a pointer to an object with the following
          structure containing the broken-out fields of an entry in
          the RPC program number data base.

              struct rpcent {
                  char  *r_name;     /* name of server for this RPC program */
                  char **r_aliases;  /* alias list */
                  long   r_number;   /* RPC program number */
              };

          The members of this structure are:

          r_name
               The name of the server for this RPC program.

          r_aliases
               A NULL-terminated list of alternate names for the RPC
               program.

          r_number
               The RPC program number for this service.

          The getrpcent() function reads the next entry from the data-
          base.  A connection is opened to the database if necessary.

          The setrpcent() function opens a connection to the database,
          and sets the next entry to the first entry.  If stayopen is
          nonzero, then the connection to the database will not be
          closed between calls to one of the getrpc*() functions.

          The endrpcent() function closes the connection to the

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     GETRPCENT(3)              (2020-04-11)               GETRPCENT(3)

          database.

          The getrpcbyname() and getrpcbynumber() functions sequen-
          tially search from the beginning of the file until a match-
          ing RPC program name or program number is found, or until
          end-of-file is encountered.

     RETURN VALUE
          On success, getrpcent(), getrpcbyname(), and
          getrpcbynumber() return a pointer to a statically allocated
          rpcent structure.  NULL is returned on EOF or error.

     FILES
          /etc/rpc
               RPC program number database.

     ATTRIBUTES
          For an explanation of the terms used in this section, see
          attributes(7).  allbox; lbw28 lb lb l l l.
          Interface Attribute Value T{ getrpcent(), getrpcbyname(),
          getrpcbynumber() T}   Thread safety  MT-Unsafe T{
          setrpcent(), endrpcent() T}   Thread safety  MT-Safe locale

     CONFORMING TO
          Not in POSIX.1.  Present on the BSDs, Solaris, and many
          other systems.

     BUGS
          All information is contained in a static area so it must be
          copied if it is to be saved.

     SEE ALSO
          getrpcent_r(3), rpc(5), rpcinfo(8), ypserv(8)

     COLOPHON
          This page is part of release 5.10 of the Linux man-pages
          project.  A description of the project, information about
          reporting bugs, and the latest version of this page, can be
          found at https://www.kernel.org/doc/man-pages/.

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