NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | FILES | ATTRIBUTES | CONFORMING TO | BUGS | SEE ALSO | COLOPHON

GETRPCENT(3)              Linux Programmer's Manual             GETRPCENT(3)

NAME         top

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

SYNOPSIS         top

       #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         top

       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         top

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

FILES         top

       /etc/rpc
              RPC program number database.

ATTRIBUTES         top

       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         top

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

BUGS         top

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

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 4.07 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)