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/* libguestfs - implement --short-options and --long-options
* Copyright (C) 2010-2019 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* This file contains common code used to implement I<--short-options>
* and I<--long-options> in C virt tools. (The equivalent for
* OCaml virt tools is implemented by F<common/mltools/getopt.ml>).
*
* These "hidden" options are used to implement bash tab completion.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include "guestfs-internal-all.h"
#include "display-options.h"
/**
* Implements the internal C<tool I<--short-options>> flag, which just
* lists out the short options available. Used by bash completion.
*/
void
display_short_options (const char *format)
{
while (*format) {
if (*format != ':')
printf ("-%c\n", *format);
++format;
}
exit (EXIT_SUCCESS);
}
/**
* Implements the internal C<tool I<--long-options>> flag, which just
* lists out the long options available. Used by bash completion.
*/
void
display_long_options (const struct option *long_options)
{
while (long_options->name) {
if (STRNEQ (long_options->name, "long-options") &&
STRNEQ (long_options->name, "short-options"))
printf ("--%s\n", long_options->name);
long_options++;
}
exit (EXIT_SUCCESS);
}
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