EXPLAIN_GETHOSTBYNAME_OR_DIE - reference manual online

explain_gethostbyname_or_die(3)      Library Functions Manual     explain_gethostbyname_or_die(3)

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_geth‐
       ostbyname(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_geth‐
       ostbyname(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)