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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()  functions  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 database.  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 database.

   The  getrpcbyname()  and getrpcbynumber() functions sequentially search
   from the beginning of the file until a matching  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).

   ┌─────────────────────────────┬───────────────┬────────────────┐
   │Interface                    │ Attribute     │ Value          │
   ├─────────────────────────────┼───────────────┼────────────────┤
   │getrpcent(), getrpcbyname(), │ Thread safety │ MT-Unsafe      │
   │getrpcbynumber()             │               │                │
   ├─────────────────────────────┼───────────────┼────────────────┤
   │setrpcent(), endrpcent()     │ 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 4.09 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/.

                              2015-07-23                      GETRPCENT(3)



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