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/* A more useful interface to strtol.
Copyright (C) 1995-1996, 1998-1999, 2001-2004, 2006-2016 Free Software
Foundation, 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 3 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, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include "xstrtol.h"
#include <stdlib.h>
#include "error.h"
#include "exitfail.h"
#include "gettext.h"
#define N_(msgid) msgid
/* Report an error for an invalid integer in an option argument.
ERR is the error code returned by one of the xstrto* functions.
Use OPT_IDX to decide whether to print the short option string "C"
or "-C" or a long option string derived from LONG_OPTION. OPT_IDX
is -2 if the short option "C" was used, without any leading "-"; it
is -1 if the short option "-C" was used; otherwise it is an index
into LONG_OPTIONS, which should have a name preceded by two '-'
characters.
ARG is the option-argument containing the integer.
After reporting an error, exit with status EXIT_STATUS if it is
nonzero. */
static void
xstrtol_error (enum strtol_error err,
int opt_idx, char c, struct option const *long_options,
char const *arg,
int exit_status)
{
char const *hyphens = "--";
char const *msgid;
char const *option;
char option_buffer[2];
switch (err)
{
default:
abort ();
case LONGINT_INVALID:
msgid = N_("invalid %s%s argument '%s'");
break;
case LONGINT_INVALID_SUFFIX_CHAR:
case LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW:
msgid = N_("invalid suffix in %s%s argument '%s'");
break;
case LONGINT_OVERFLOW:
msgid = N_("%s%s argument '%s' too large");
break;
}
if (opt_idx < 0)
{
hyphens -= opt_idx;
option_buffer[0] = c;
option_buffer[1] = '\0';
option = option_buffer;
}
else
option = long_options[opt_idx].name;
error (exit_status, 0, gettext (msgid), hyphens, option, arg);
}
/* Like xstrtol_error, except exit with a failure status. */
void
xstrtol_fatal (enum strtol_error err,
int opt_idx, char c, struct option const *long_options,
char const *arg)
{
xstrtol_error (err, opt_idx, c, long_options, arg, exit_failure);
abort ();
}
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