blob: d2348b5f741d61be197146f67d04be6fcbb398d5
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * lsattr.c - List file attributes on an ext2 file system |
4 | * |
5 | * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr> |
6 | * Laboratoire MASI, Institut Blaise Pascal |
7 | * Universite Pierre et Marie Curie (Paris VI) |
8 | * |
9 | * This file can be redistributed under the terms of the GNU General |
10 | * Public License |
11 | */ |
12 | //config:config LSATTR |
13 | //config: bool "lsattr" |
14 | //config: default y |
15 | //config: select PLATFORM_LINUX |
16 | //config: help |
17 | //config: lsattr lists the file attributes on a second extended file system. |
18 | |
19 | //applet:IF_LSATTR(APPLET(lsattr, BB_DIR_BIN, BB_SUID_DROP)) |
20 | |
21 | //kbuild:lib-$(CONFIG_LSATTR) += lsattr.o e2fs_lib.o |
22 | |
23 | //usage:#define lsattr_trivial_usage |
24 | //usage: "[-Radlv] [FILE]..." |
25 | //usage:#define lsattr_full_usage "\n\n" |
26 | //usage: "List ext2 file attributes\n" |
27 | //usage: "\n -R Recurse" |
28 | //usage: "\n -a Don't hide entries starting with ." |
29 | //usage: "\n -d List directory entries instead of contents" |
30 | //usage: "\n -l List long flag names" |
31 | //usage: "\n -v List version/generation number" |
32 | |
33 | #include "libbb.h" |
34 | #include "e2fs_lib.h" |
35 | |
36 | enum { |
37 | OPT_RECUR = 0x1, |
38 | OPT_ALL = 0x2, |
39 | OPT_DIRS_OPT = 0x4, |
40 | OPT_PF_LONG = 0x8, |
41 | OPT_GENERATION = 0x10, |
42 | }; |
43 | |
44 | static void list_attributes(const char *name) |
45 | { |
46 | unsigned long fsflags; |
47 | unsigned long generation; |
48 | |
49 | if (fgetflags(name, &fsflags) != 0) |
50 | goto read_err; |
51 | |
52 | if (option_mask32 & OPT_GENERATION) { |
53 | if (fgetversion(name, &generation) != 0) |
54 | goto read_err; |
55 | printf("%5lu ", generation); |
56 | } |
57 | |
58 | if (option_mask32 & OPT_PF_LONG) { |
59 | printf("%-28s ", name); |
60 | print_e2flags(stdout, fsflags, PFOPT_LONG); |
61 | bb_putchar('\n'); |
62 | } else { |
63 | print_e2flags(stdout, fsflags, 0); |
64 | printf(" %s\n", name); |
65 | } |
66 | |
67 | return; |
68 | read_err: |
69 | bb_perror_msg("reading %s", name); |
70 | } |
71 | |
72 | static int FAST_FUNC lsattr_dir_proc(const char *dir_name, |
73 | struct dirent *de, |
74 | void *private UNUSED_PARAM) |
75 | { |
76 | struct stat st; |
77 | char *path; |
78 | |
79 | path = concat_path_file(dir_name, de->d_name); |
80 | |
81 | if (lstat(path, &st) != 0) |
82 | bb_perror_msg("stat %s", path); |
83 | else if (de->d_name[0] != '.' || (option_mask32 & OPT_ALL)) { |
84 | list_attributes(path); |
85 | if (S_ISDIR(st.st_mode) && (option_mask32 & OPT_RECUR) |
86 | && !DOT_OR_DOTDOT(de->d_name) |
87 | ) { |
88 | printf("\n%s:\n", path); |
89 | iterate_on_dir(path, lsattr_dir_proc, NULL); |
90 | bb_putchar('\n'); |
91 | } |
92 | } |
93 | |
94 | free(path); |
95 | return 0; |
96 | } |
97 | |
98 | static void lsattr_args(const char *name) |
99 | { |
100 | struct stat st; |
101 | |
102 | if (lstat(name, &st) == -1) { |
103 | bb_perror_msg("stat %s", name); |
104 | } else if (S_ISDIR(st.st_mode) && !(option_mask32 & OPT_DIRS_OPT)) { |
105 | iterate_on_dir(name, lsattr_dir_proc, NULL); |
106 | } else { |
107 | list_attributes(name); |
108 | } |
109 | } |
110 | |
111 | int lsattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
112 | int lsattr_main(int argc UNUSED_PARAM, char **argv) |
113 | { |
114 | getopt32(argv, "Radlv"); |
115 | argv += optind; |
116 | |
117 | if (!*argv) |
118 | *--argv = (char*)"."; |
119 | do lsattr_args(*argv++); while (*argv); |
120 | |
121 | return EXIT_SUCCESS; |
122 | } |
123 |