bionic (3) explain_gethostbyname_or_die.3.gz

NAME

       explain_gethostbyname_or_die - get host address by host name and report errors

SYNOPSIS

       #include <libexplain/gethostbyname.h>
       struct hostent *explain_gethostbyname_or_die(const char *name);
       struct hostent *explain_gethostbyname_on_error(const char *name);

DESCRIPTION

       The explain_gethostbyname_or_die function is used to call the gethostbyname(3) system call. On failure an
       explanation will be printed to stderr, obtained from the explain_gethostbyname(3) function, and then  the
       process terminates by calling exit(EXIT_FAILURE).

       The  explain_gethostbyname_on_error function is used to call the gethostbyname(3) system call. On failure
       an explanation will be printed to stderr, obtained from the explain_gethostbyname(3) function, but  still
       returns to the caller.

       name    The name, exactly as to be passed to the gethostbyname(3) system call.

RETURN VALUE

       The  explain_gethostbyname_or_die  function  only  returns  on  success,  see  gethostbyname(3)  for more
       information. On failure, prints an explanation and exits, it does not return.

       The  explain_gethostbyname_on_error  function  always  returns  the   value   return   by   the   wrapped
       gethostbyname(3) system call.

EXAMPLE

       The  explain_gethostbyname_or_die  function  is intended to be used in a fashion similar to the following
       example:
              struct hostent *result = explain_gethostbyname_or_die(name);

SEE ALSO

       gethostbyname(3)
               get host address given host name

       explain_gethostbyname(3)
               explain gethostbyname(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2013 Peter Miller

                                                                                 explain_gethostbyname_or_die(3)