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)