getrpcent(3) — Linux manual page

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 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/.

                               2020-04-11                   GETRPCENT(3)

Pages that refer to this page: getent(1)getrpcent_r(3)nsswitch.conf(5)rpc(5)