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6d61667d0d
Now that Gnulib’s ‘error’ module does proper static checking for not returning, we need no longer use the ‘die’ macro. This makes code easier to read for people that are used to ‘error’. * cfg.mk (error_fns, exclude_file_name_regexp): Remove ‘die’. (sc_die_EXIT_FAILURE): Remove. * src/die.h: Remove. All includes removed. All calls to ‘die’ changed back to calls to ‘error’. * src/install.c (get_ids): Use quoteaf (problem found with make syntax-check). * src/system.h: Include error.h, since some of our macros call ‘error’. Stop including error.h elsewhere.
136 lines
3.1 KiB
C
136 lines
3.1 KiB
C
/* dirname -- strip suffix from file name
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Copyright (C) 1990-2023 Free Software 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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/* Written by David MacKenzie and Jim Meyering. */
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#include <config.h>
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#include <getopt.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include "system.h"
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/* The official name of this program (e.g., no 'g' prefix). */
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#define PROGRAM_NAME "dirname"
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#define AUTHORS \
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proper_name ("David MacKenzie"), \
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proper_name ("Jim Meyering")
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static struct option const longopts[] =
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{
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{"zero", no_argument, nullptr, 'z'},
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{GETOPT_HELP_OPTION_DECL},
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{GETOPT_VERSION_OPTION_DECL},
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{nullptr, 0, nullptr, 0}
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};
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void
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usage (int status)
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{
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if (status != EXIT_SUCCESS)
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emit_try_help ();
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else
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{
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printf (_("\
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Usage: %s [OPTION] NAME...\n\
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"),
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program_name);
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fputs (_("\
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Output each NAME with its last non-slash component and trailing slashes\n\
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removed; if NAME contains no /'s, output '.' (meaning the current directory).\n\
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\n\
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"), stdout);
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fputs (_("\
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-z, --zero end each output line with NUL, not newline\n\
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"), stdout);
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fputs (HELP_OPTION_DESCRIPTION, stdout);
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fputs (VERSION_OPTION_DESCRIPTION, stdout);
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printf (_("\
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\n\
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Examples:\n\
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%s /usr/bin/ -> \"/usr\"\n\
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%s dir1/str dir2/str -> \"dir1\" followed by \"dir2\"\n\
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%s stdio.h -> \".\"\n\
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"),
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program_name, program_name, program_name);
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emit_ancillary_info (PROGRAM_NAME);
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}
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exit (status);
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}
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int
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main (int argc, char **argv)
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{
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static char const dot = '.';
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bool use_nuls = false;
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char const *result;
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size_t len;
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initialize_main (&argc, &argv);
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set_program_name (argv[0]);
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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atexit (close_stdout);
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while (true)
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{
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int c = getopt_long (argc, argv, "z", longopts, nullptr);
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if (c == -1)
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break;
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switch (c)
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{
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case 'z':
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use_nuls = true;
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break;
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case_GETOPT_HELP_CHAR;
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case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
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default:
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usage (EXIT_FAILURE);
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}
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}
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if (argc < optind + 1)
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{
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error (0, 0, _("missing operand"));
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usage (EXIT_FAILURE);
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}
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for (; optind < argc; optind++)
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{
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result = argv[optind];
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len = dir_len (result);
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if (! len)
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{
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result = ˙
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len = 1;
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}
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fwrite (result, 1, len, stdout);
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putchar (use_nuls ? '\0' :'\n');
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}
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return EXIT_SUCCESS;
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}
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