99 lines
2.7 KiB
C
99 lines
2.7 KiB
C
/* A more useful interface to strtol.
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Copyright (C) 1995-1996, 1998-1999, 2001-2004, 2006-2022 Free Software
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Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include "xstrtol-error.h"
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#include <stdlib.h>
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#include "error.h"
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#include "exitfail.h"
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#include "gettext.h"
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#define N_(msgid) msgid
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/* Report an error for an invalid integer in an option argument.
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ERR is the error code returned by one of the xstrto* functions.
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Use OPT_IDX to decide whether to print the short option string "C"
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or "-C" or a long option string derived from LONG_OPTION. OPT_IDX
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is -2 if the short option "C" was used, without any leading "-"; it
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is -1 if the short option "-C" was used; otherwise it is an index
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into LONG_OPTIONS, which should have a name preceded by two '-'
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characters.
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ARG is the option-argument containing the integer.
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After reporting an error, exit with status EXIT_STATUS if it is
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nonzero. */
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static void
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xstrtol_error (enum strtol_error err,
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int opt_idx, char c, struct option const *long_options,
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char const *arg,
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int exit_status)
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{
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char const *hyphens = "--";
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char const *msgid;
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char const *option;
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char option_buffer[2];
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switch (err)
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{
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default:
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abort ();
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case LONGINT_INVALID:
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msgid = N_("invalid %s%s argument '%s'");
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break;
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case LONGINT_INVALID_SUFFIX_CHAR:
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case LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW:
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msgid = N_("invalid suffix in %s%s argument '%s'");
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break;
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case LONGINT_OVERFLOW:
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msgid = N_("%s%s argument '%s' too large");
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break;
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}
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if (opt_idx < 0)
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{
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hyphens -= opt_idx;
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option_buffer[0] = c;
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option_buffer[1] = '\0';
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option = option_buffer;
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}
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else
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option = long_options[opt_idx].name;
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error (exit_status, 0, gettext (msgid), hyphens, option, arg);
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}
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/* Like xstrtol_error, except exit with a failure status. */
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void
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xstrtol_fatal (enum strtol_error err,
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int opt_idx, char c, struct option const *long_options,
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char const *arg)
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{
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xstrtol_error (err, opt_idx, c, long_options, arg, exit_failure);
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abort ();
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}
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