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getrpcent_r (3)
  • >> getrpcent_r (3) ( Linux man: Библиотечные вызовы )
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    NAME

    getrpcent_r, getrpcbyname_r, getrpcbynumber_r - get
    RPC entry (reentrant)
     
    

    SYNOPSIS

    #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(): _BSD_SOURCE || _SVID_SOURCE  

    DESCRIPTION

    The getrpcent_r(), getrpcbyname_r(), and getrpcbynumber_r() functions are the reentrant equivalents of, respectively, getrpcent(3), getrpcbyname(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 structure 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 non-reentrant 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.  

    RETURN VALUE

    On success, these functions return 0. On error, a positive error number is returned.

    On error, record not found (getrpcbyname_r(), getrpcbynumber_r()), or end of input (getrpcent_r()) result is set to NULL.  

    ERRORS

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

    CONFORMING TO

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

    SEE ALSO

    getrpcent(3), rpc(5)  

    COLOPHON

    This page is part of release 3.14 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    CONFORMING TO
    SEE ALSO
    COLOPHON


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