getrpcent, getrpcbyname, getrpcbynumber, setrpcent, endrpcent - get RPC entry
#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);
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.
On success,
getrpcent(),
getrpcbyname(), and
getrpcbynumber() return a pointer to a statically allocated
rpcent structure. NULL is returned on EOF or error.
- /etc/rpc
- RPC program number database.
For an explanation of the terms used in this section, see
attributes(7).
| Interface |
Attribute |
Value |
| getrpcent (), getrpcbyname (), getrpcbynumber () |
Thread safety |
MT-Unsafe |
| setrpcent (), endrpcent () |
Thread safety |
MT-Safe locale |
Not in POSIX.1. Present on the BSDs, Solaris, and many other systems.
All information is contained in a static area so it must be copied if it is to
be saved.
getrpcent_r(3),
rpc(5),
rpcinfo(8),
ypserv(8)