jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * Copyright (c) 2020, Shannon Booth <shannon.ml.booth@gmail.com>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this
10 * list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <AK/String.h>
29#include <LibCore/ArgsParser.h>
30#include <LibCore/DateTime.h>
31#include <grp.h>
32#include <pwd.h>
33#include <stdio.h>
34#include <sys/stat.h>
35#include <time.h>
36#include <unistd.h>
37
38static int stat(const char* file, bool should_follow_links)
39{
40 struct stat st;
41 int rc = should_follow_links ? stat(file, &st) : lstat(file, &st);
42 if (rc < 0) {
43 perror("lstat");
44 return 1;
45 }
46 printf(" File: %s\n", file);
47 printf(" Inode: %u\n", st.st_ino);
48 if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode))
49 printf(" Device: %u,%u\n", major(st.st_rdev), minor(st.st_rdev));
50 else
51 printf(" Size: %u\n", st.st_size);
52 printf(" Links: %u\n", st.st_nlink);
53 printf(" Blocks: %u\n", st.st_blocks);
54 printf(" UID: %u", st.st_uid);
55 if (auto* pwd = getpwuid(st.st_uid)) {
56 printf(" (%s)", pwd->pw_name);
57 }
58 printf("\n");
59 printf(" GID: %u", st.st_gid);
60 if (auto* grp = getgrgid(st.st_gid)) {
61 printf(" (%s)", grp->gr_name);
62 }
63 printf("\n");
64 printf(" Mode: (%o/", st.st_mode);
65
66 if (S_ISDIR(st.st_mode))
67 printf("d");
68 else if (S_ISLNK(st.st_mode))
69 printf("l");
70 else if (S_ISBLK(st.st_mode))
71 printf("b");
72 else if (S_ISCHR(st.st_mode))
73 printf("c");
74 else if (S_ISFIFO(st.st_mode))
75 printf("f");
76 else if (S_ISSOCK(st.st_mode))
77 printf("s");
78 else if (S_ISREG(st.st_mode))
79 printf("-");
80 else
81 printf("?");
82
83 printf("%c%c%c%c%c%c%c%c",
84 st.st_mode & S_IRUSR ? 'r' : '-',
85 st.st_mode & S_IWUSR ? 'w' : '-',
86 st.st_mode & S_ISUID ? 's' : (st.st_mode & S_IXUSR ? 'x' : '-'),
87 st.st_mode & S_IRGRP ? 'r' : '-',
88 st.st_mode & S_IWGRP ? 'w' : '-',
89 st.st_mode & S_ISGID ? 's' : (st.st_mode & S_IXGRP ? 'x' : '-'),
90 st.st_mode & S_IROTH ? 'r' : '-',
91 st.st_mode & S_IWOTH ? 'w' : '-');
92
93 if (st.st_mode & S_ISVTX)
94 printf("t");
95 else
96 printf("%c", st.st_mode & S_IXOTH ? 'x' : '-');
97
98 printf(")\n");
99
100 auto print_time = [](time_t t) {
101 printf("%s\n", Core::DateTime::from_timestamp(t).to_string().characters());
102 };
103
104 printf("Accessed: ");
105 print_time(st.st_atime);
106 printf("Modified: ");
107 print_time(st.st_mtime);
108 printf(" Changed: ");
109 print_time(st.st_ctime);
110
111 return 0;
112}
113
114int main(int argc, char** argv)
115{
116 if (pledge("stdio rpath", nullptr) < 0) {
117 perror("pledge");
118 return 1;
119 }
120
121 bool should_follow_links = false;
122 Vector<const char*> files;
123
124 auto args_parser = Core::ArgsParser();
125 args_parser.add_option(should_follow_links, "Follow links to files", nullptr, 'L');
126 args_parser.add_positional_argument(files, "File(s) to stat", "file", Core::ArgsParser::Required::Yes);
127 args_parser.parse(argc, argv);
128
129 int ret = 0;
130 for (auto& file : files)
131 ret |= stat(file, should_follow_links);
132
133 return ret;
134}