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


     getrpcent_r,  getrpcbyname_r,  getrpcbynumber_r  - get RPC entry (reen-


     #include <netdb.h>
     int getrpcent_r(struct rpcent *result_buf, char *buf,
                     size_t buflen, struct rpcent **result);
     int getrpcbyname_r(const char *name,
                     struct rpcent *result_buf, char *buf,
                     size_t buflen, struct rpcent **result);
     int getrpcbynumber_r(int number,
                     struct rpcent *result_buf, char *buf,
                     size_t buflen, struct rpcent **result);
 Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
     getrpcent_r(), getrpcbyname_r(), getrpcbynumber_r():
         Since glibc 2.19:
         Glibc 2.19 and earlier:
             _BSD_SOURCE || _SVID_SOURCE


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


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


     ENOENT (getrpcent_r()) No more records in database.
     ERANGE buf is too small.  Try again with a larger buffer (and increased


     For  an  explanation  of  the  terms  used   in   this   section,   see
     |Interface          | Attribute     | Value          |
     |getrpcent_r(),     | Thread safety | MT-Safe locale |
     |getrpcbyname_r(),  |               |                |
     |getrpcbynumber_r() |               |                |


     These functions are GNU extensions.  Functions with similar names exist
     on some other systems, though typically with different  calling  signa-


     getrpcent(3), rpc(5)


     This  page  is  part of release 4.16 of the Linux man-pages project.  A
     description of the project, information about reporting bugs,  and  the
     latest     version     of     this    page,    can    be    found    at

GNU 2017-09-15 GETRPCENT_R(3)

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