getrpcent(3) Library Functions Manual getrpcent(3)
NAME
getrpcent, getrpcbyname, getrpcbynumber, setrpcent, endrpcent - get RPC
entry
LIBRARY
Standard C library (libc, -lc)
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 re-
turn 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 con-
nection 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 pro-
gram 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 │
└─────────────────────────────────────┴───────────────┴────────────────┘
STANDARDS
BSD.
HISTORY
BSD, Solaris.
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)
Linux man-pages 6.9.1 2024-05-02 getrpcent(3)
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