xref: /freebsd/lib/libc/rpc/getrpcent.3 (revision daf1cffce2e07931f27c6c6998652e90df6ba87e)
1.\" @(#)getrpcent.3n	2.2 88/08/02 4.0 RPCSRC; from 1.11 88/03/14 SMI
2.\" $FreeBSD$
3.\"
4.Dd December 14, 1987
5.Dt GETRPCENT 3
6.Os
7.Sh NAME
8.Nm getrpcent ,
9.Nm getrpcbyname ,
10.Nm getrpcbynumber ,
11.Nm endrpcent ,
12.Nm setrpcent
13.Nd get RPC entry
14.Sh SYNOPSIS
15.Fd #include <rpc/rpc.h>
16.Ft struct rpcent *
17.Fn getrpcent void
18.Ft struct rpcent *
19.Fn getrpcbyname "char *name"
20.Ft struct rpcent *
21.Fn getrpcbynumber "int number"
22.Ft void
23.Fn setrpcent "int stayopen"
24.Ft void
25.Fn endrpcent void
26.Sh DESCRIPTION
27The
28.Fn getrpcent ,
29.Fn getrpcbyname ,
30and
31.Fn getrpcbynumber
32functions each return a pointer to an object with the
33following structure
34containing the broken-out
35fields of a line in the rpc program number data base,
36.Pa /etc/rpc .
37.Bd -literal
38
39struct	rpcent {
40	char	*r_name;	/* name of server for this rpc program */
41	char	**r_aliases;	/* alias list */
42	long	r_number;	/* rpc program number */
43};
44.Ed
45.Pp
46The members of this structure are:
47.Bl -tag -width r_aliasesxxx
48.It Fa r_name
49The name of the server for this rpc program.
50.It Fa r_aliases
51A zero terminated list of alternate names for the rpc program.
52.It Fa r_number
53The rpc program number for this service.
54.El
55.Pp
56The
57.Fn getrpcent
58function reads the next line of the file, opening the file if necessary.
59The
60.Nm getrpcent
61function opens and rewinds the file.  If the
62.Fa stayopen
63flag is non-zero,
64the net data base will not be closed after each call to
65.Fn getrpcent
66(either directly, or indirectly through one of
67the other
68.Fn getrpcent
69function family.
70.Pp
71.Fn endrpcent
72closes the file.
73.Pp
74.Fn getrpcbyname
75and
76.Fn getrpcbynumber
77sequentially search from the beginning
78of the file until a matching rpc program name or
79program number is found, or until end-of-file is encountered.
80.Sh FILES
81.Bl -tag -width /etc/rpc -compact
82.It Pa /etc/rpc
83.El
84.Sh "SEE ALSO"
85.Xr rpc 5 ,
86.Xr rpcinfo 8 ,
87.Xr ypserv 8
88.Sh DIAGNOSTICS
89A
90.Dv NULL
91pointer is returned on
92.Dv EOF
93or error.
94.Sh BUGS
95All information
96is contained in a static area
97so it must be copied if it is
98to be saved.
99