getrpcent_r, getrpcbyname_r, getrpcbynumber_r - get RPC entry (reentrant)
#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)):
getrpcbynumber_r() functions are the reentrant
equivalents of, respectively, getrpcent(3),
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 nonreentrant functions.
Instead of returning a pointer to a statically allocated
rpcent structure as the function result, these functions copy
the structure into the location pointed to by
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
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 is set to NULL.
(getrpcent_r()) No more records in database.
buf is too small. Try again with a larger buffer (and
These functions are GNU extensions. Functions with similar names exist on some other systems, though typically with different calling signatures.
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