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-'\" t
-.\" Copyright 2008, Linux Foundation, written by Michael Kerrisk
-.\" <mtk.manpages@gmail.com>
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.TH getrpcent_r 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-getrpcent_r, getrpcbyname_r, getrpcbynumber_r \- get
-RPC entry (reentrant)
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <netdb.h>
-.P
-.BI "int getrpcent_r(struct rpcent *" result_buf ", char " buf [. buflen ],
-.BI " size_t " buflen ", struct rpcent **" result );
-.BI "int getrpcbyname_r(const char *" name ,
-.BI " struct rpcent *" result_buf ", char " buf [. buflen ],
-.BI " size_t " buflen ", struct rpcent **" result );
-.BI "int getrpcbynumber_r(int " number ,
-.BI " struct rpcent *" result_buf ", char " buf [. buflen ],
-.BI " size_t " buflen ", struct rpcent **" result );
-.P
-.fi
-.RS -4
-Feature Test Macro Requirements for glibc (see
-.BR feature_test_macros (7)):
-.RE
-.P
-.BR getrpcent_r (),
-.BR getrpcbyname_r (),
-.BR getrpcbynumber_r ():
-.nf
- Since glibc 2.19:
- _DEFAULT_SOURCE
- glibc 2.19 and earlier:
- _BSD_SOURCE || _SVID_SOURCE
-.fi
-.SH DESCRIPTION
-The
-.BR getrpcent_r (),
-.BR getrpcbyname_r (),
-and
-.BR getrpcbynumber_r ()
-functions are the reentrant equivalents of, respectively,
-.BR getrpcent (3),
-.BR getrpcbyname (3),
-and
-.BR getrpcbynumber (3).
-They differ in the way that the
-.I rpcent
-structure is returned,
-and in the function calling signature and return value.
-This manual page describes just the differences from
-the nonreentrant functions.
-.P
-Instead of returning a pointer to a statically allocated
-.I rpcent
-structure as the function result,
-these functions copy the structure into the location pointed to by
-.IR result_buf .
-.P
-The
-.I buf
-array is used to store the string fields pointed to by the returned
-.I rpcent
-structure.
-(The nonreentrant functions allocate these strings in static storage.)
-The size of this array is specified in
-.IR buflen .
-If
-.I buf
-is too small, the call fails with the error
-.BR ERANGE ,
-and the caller must try again with a larger buffer.
-(A buffer of length 1024 bytes should be sufficient for most applications.)
-.\" I can find no information on the required/recommended buffer size;
-.\" the nonreentrant functions use a 1024 byte buffer -- mtk.
-.P
-If the function call successfully obtains an RPC record, then
-.I *result
-is set pointing to
-.IR result_buf ;
-otherwise,
-.I *result
-is set to NULL.
-.SH RETURN VALUE
-On success, these functions return 0.
-On error, they return one of the positive error numbers listed in ERRORS.
-.P
-On error, record not found
-.RB ( getrpcbyname_r (),
-.BR getrpcbynumber_r ()),
-or end of input
-.RB ( getrpcent_r ())
-.I result
-is set to NULL.
-.SH ERRORS
-.TP
-.B ENOENT
-.RB ( getrpcent_r ())
-No more records in database.
-.TP
-.B ERANGE
-.I buf
-is too small.
-Try again with a larger buffer
-(and increased
-.IR buflen ).
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.na
-.nh
-.BR getrpcent_r (),
-.BR getrpcbyname_r (),
-.BR getrpcbynumber_r ()
-T} Thread safety MT-Safe locale
-.TE
-.SH VERSIONS
-Functions with similar names exist on some other systems,
-though typically with different calling signatures.
-.SH STANDARDS
-GNU.
-.SH SEE ALSO
-.BR getrpcent (3),
-.BR rpc (5)