| 1 | /* A more useful interface to strtol.
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| 2 |
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| 3 | Copyright (C) 1995-1996, 1998-1999, 2001-2004, 2006-2021 Free Software
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| 4 | Foundation, Inc.
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| 5 |
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| 6 | This program is free software: you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 3 of the License, or
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| 9 | (at your option) any later version.
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| 10 |
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| 11 | This program is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
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| 18 |
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| 19 | #include <config.h>
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| 20 | #include "xstrtol-error.h"
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| 21 |
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| 22 | #include <stdlib.h>
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| 23 |
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| 24 | #include "error.h"
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| 25 | #include "exitfail.h"
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| 26 | #include "gettext.h"
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| 27 |
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| 28 | #define N_(msgid) msgid
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| 29 |
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| 30 | /* Report an error for an invalid integer in an option argument.
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| 31 |
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| 32 | ERR is the error code returned by one of the xstrto* functions.
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| 33 |
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| 34 | Use OPT_IDX to decide whether to print the short option string "C"
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| 35 | or "-C" or a long option string derived from LONG_OPTION. OPT_IDX
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| 36 | is -2 if the short option "C" was used, without any leading "-"; it
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| 37 | is -1 if the short option "-C" was used; otherwise it is an index
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| 38 | into LONG_OPTIONS, which should have a name preceded by two '-'
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| 39 | characters.
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| 40 |
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| 41 | ARG is the option-argument containing the integer.
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| 42 |
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| 43 | After reporting an error, exit with status EXIT_STATUS if it is
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| 44 | nonzero. */
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| 45 |
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| 46 | static void
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| 47 | xstrtol_error (enum strtol_error err,
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| 48 | int opt_idx, char c, struct option const *long_options,
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| 49 | char const *arg,
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| 50 | int exit_status)
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| 51 | {
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| 52 | char const *hyphens = "--";
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| 53 | char const *msgid;
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| 54 | char const *option;
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| 55 | char option_buffer[2];
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| 56 |
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| 57 | switch (err)
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| 58 | {
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| 59 | default:
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| 60 | abort ();
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| 61 |
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| 62 | case LONGINT_INVALID:
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| 63 | msgid = N_("invalid %s%s argument '%s'");
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| 64 | break;
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| 65 |
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| 66 | case LONGINT_INVALID_SUFFIX_CHAR:
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| 67 | case LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW:
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| 68 | msgid = N_("invalid suffix in %s%s argument '%s'");
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| 69 | break;
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| 70 |
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| 71 | case LONGINT_OVERFLOW:
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| 72 | msgid = N_("%s%s argument '%s' too large");
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| 73 | break;
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| 74 | }
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| 75 |
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| 76 | if (opt_idx < 0)
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| 77 | {
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| 78 | hyphens -= opt_idx;
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| 79 | option_buffer[0] = c;
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| 80 | option_buffer[1] = '\0';
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| 81 | option = option_buffer;
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| 82 | }
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| 83 | else
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| 84 | option = long_options[opt_idx].name;
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| 85 |
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| 86 | error (exit_status, 0, gettext (msgid), hyphens, option, arg);
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| 87 | }
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| 88 |
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| 89 | /* Like xstrtol_error, except exit with a failure status. */
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| 90 |
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| 91 | void
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| 92 | xstrtol_fatal (enum strtol_error err,
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| 93 | int opt_idx, char c, struct option const *long_options,
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| 94 | char const *arg)
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| 95 | {
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| 96 | xstrtol_error (err, opt_idx, c, long_options, arg, exit_failure);
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| 97 | abort ();
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| 98 | }
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