getrpcent - Online Linux Manual PageSection : 3
Updated : 2022-12-15
Source : Linux man-pages 6.03
NAMEgetrpcent, getrpcbyname, getrpcbynumber, setrpcent, endrpcent − get RPC entry
LIBRARYStandard 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);
DESCRIPTIONThe 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 VALUEOn 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.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue getrpcent(), getrpcbyname(), getrpcbynumber() Thread safetyMT-Unsafe setrpcent(), endrpcent() Thread safetyMT-Safe locale
STANDARDSNot in POSIX.1. Present on the BSDs, Solaris, and many other systems.
BUGSAll information is contained in a static area so it must be copied if it is to be saved.
SEE ALSOgetrpcent_r(3), rpc(5), rpcinfo(8), ypserv(8) 0
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