getrpcent_r(3)

1GETRPCENT_R(3)             Linux Programmer's Manual            GETRPCENT_R(3)
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NAME

6       getrpcent_r,  getrpcbyname_r,  getrpcbynumber_r  - get RPC entry (reen‐
7       trant)
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SYNOPSIS

10       #include <netdb.h>
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12       int getrpcent_r(struct rpcent *result_buf, char *buf,
13                       size_t buflen, struct rpcent **result);
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15       int getrpcbyname_r(const char *name,
16                       struct rpcent *result_buf, char *buf,
17                       size_t buflen, struct rpcent **result);
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19       int getrpcbynumber_r(int number,
20                       struct rpcent *result_buf, char *buf,
21                       size_t buflen, struct rpcent **result);
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23   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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25       getrpcent_r(), getrpcbyname_r(), getrpcbynumber_r():
26           _BSD_SOURCE || _SVID_SOURCE
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DESCRIPTION

29       The getrpcent_r(), getrpcbyname_r(), and  getrpcbynumber_r()  functions
30       are the reentrant equivalents of, respectively, getrpcent(3), getrpcby‐
31       name(3), and getrpcbynumber(3).  They differ in the way that the rpcent
32       structure is returned, and in the function calling signature and return
33       value.  This manual page describes just the differences from  the  non‐
34       reentrant functions.
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36       Instead  of returning a pointer to a statically allocated rpcent struc‐
37       ture as the function result, these functions copy  the  structure  into
38       the location pointed to by result_buf.
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40       The  buf  array  is  used  to store the string fields pointed to by the
41       returned rpcent structure.  (The nonreentrant functions allocate  these
42       strings  in  static  storage.)   The size of this array is specified in
43       buflen.  If buf is too small, the call fails with the error ERANGE, and
44       the  caller  must  try again with a larger buffer.  (A buffer of length
45       1024 bytes should be sufficient for most applications.)
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47       If the function call successfully obtains an RPC record,  then  *result
48       is set pointing to result_buf; otherwise, *result is set to NULL.
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RETURN VALUE

51       On success, these functions return 0.  On error, they return one of the
52       positive error numbers listed in ERRORS.
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54       On error, record not found (getrpcbyname_r(),  getrpcbynumber_r()),  or
55       end of input (getrpcent_r()) result is set to NULL.
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ERRORS

58       ENOENT (getrpcent_r()) No more records in database.
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60       ERANGE buf is too small.  Try again with a larger buffer (and increased
61              buflen).
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CONFORMING TO

64       These functions are GNU extensions.  Functions with similar names exist
65       on  some  other systems, though typically with different calling signa‐
66       tures.
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COLOPHON

72       This page is part of release 3.53 of the Linux  man-pages  project.   A
73       description  of  the project, and information about reporting bugs, can
74       be found at http://www.kernel.org/doc/man-pages/.
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78GNU                               2010-09-10                    GETRPCENT_R(3)