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4d8d554a CW |
1 | /* ls.c - command to list files and devices */ |
2 | /* | |
3 | * GRUB -- GRand Unified Bootloader | |
4 | * Copyright (C) 2003,2005,2007,2008,2009 Free Software Foundation, Inc. | |
5 | * | |
6 | * GRUB is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * GRUB is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GRUB. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <grub/types.h> | |
21 | #include <grub/misc.h> | |
22 | #include <grub/mm.h> | |
23 | #include <grub/err.h> | |
24 | #include <grub/dl.h> | |
25 | #include <grub/disk.h> | |
26 | #include <grub/device.h> | |
27 | #include <grub/term.h> | |
28 | #include <grub/partition.h> | |
29 | #include <grub/file.h> | |
30 | #include <grub/normal.h> | |
31 | #include <grub/extcmd.h> | |
32 | #include <grub/datetime.h> | |
33 | #include <grub/i18n.h> | |
34 | #include <grub/net.h> | |
35 | ||
36 | GRUB_MOD_LICENSE ("GPLv3+"); | |
37 | ||
38 | static const struct grub_arg_option options[] = | |
39 | { | |
40 | {"long", 'l', 0, N_("Show a long list with more detailed information."), 0, 0}, | |
41 | {"human-readable", 'h', 0, N_("Print sizes in a human readable format."), 0, 0}, | |
42 | {"all", 'a', 0, N_("List all files."), 0, 0}, | |
43 | {0, 0, 0, 0, 0, 0} | |
44 | }; | |
45 | ||
46 | /* Helper for grub_ls_list_devices. */ | |
47 | static int | |
48 | grub_ls_print_devices (const char *name, void *data) | |
49 | { | |
50 | int *longlist = data; | |
51 | ||
52 | if (*longlist) | |
53 | grub_normal_print_device_info (name); | |
54 | else | |
55 | grub_printf ("(%s) ", name); | |
56 | ||
57 | return 0; | |
58 | } | |
59 | ||
60 | static grub_err_t | |
61 | grub_ls_list_devices (int longlist) | |
62 | { | |
63 | grub_device_iterate (grub_ls_print_devices, &longlist); | |
64 | grub_xputs ("\n"); | |
65 | ||
66 | #if 0 | |
67 | { | |
68 | grub_net_app_level_t proto; | |
69 | int first = 1; | |
70 | FOR_NET_APP_LEVEL (proto) | |
71 | { | |
72 | if (first) | |
73 | grub_puts_ (N_ ("Network protocols:")); | |
74 | first = 0; | |
75 | grub_printf ("%s ", proto->name); | |
76 | } | |
77 | grub_xputs ("\n"); | |
78 | } | |
79 | #endif | |
80 | ||
81 | grub_refresh (); | |
82 | ||
83 | return 0; | |
84 | } | |
85 | ||
86 | /* Context for grub_ls_list_files. */ | |
87 | struct grub_ls_list_files_ctx | |
88 | { | |
89 | char *dirname; | |
90 | int all; | |
91 | int human; | |
92 | }; | |
93 | ||
94 | /* Helper for grub_ls_list_files. */ | |
95 | static int | |
96 | print_files (const char *filename, const struct grub_dirhook_info *info, | |
97 | void *data) | |
98 | { | |
99 | struct grub_ls_list_files_ctx *ctx = data; | |
100 | ||
101 | if (ctx->all || filename[0] != '.') | |
102 | grub_printf ("%s%s ", filename, info->dir ? "/" : ""); | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
107 | /* Helper for grub_ls_list_files. */ | |
108 | static int | |
109 | print_files_long (const char *filename, const struct grub_dirhook_info *info, | |
110 | void *data) | |
111 | { | |
112 | struct grub_ls_list_files_ctx *ctx = data; | |
113 | ||
114 | if ((! ctx->all) && (filename[0] == '.')) | |
115 | return 0; | |
116 | ||
117 | if (! info->dir) | |
118 | { | |
119 | grub_file_t file; | |
120 | char *pathname; | |
121 | ||
122 | if (ctx->dirname[grub_strlen (ctx->dirname) - 1] == '/') | |
123 | pathname = grub_xasprintf ("%s%s", ctx->dirname, filename); | |
124 | else | |
125 | pathname = grub_xasprintf ("%s/%s", ctx->dirname, filename); | |
126 | ||
127 | if (!pathname) | |
128 | return 1; | |
129 | ||
130 | /* XXX: For ext2fs symlinks are detected as files while they | |
131 | should be reported as directories. */ | |
132 | grub_file_filter_disable_compression (); | |
133 | file = grub_file_open (pathname); | |
134 | if (! file) | |
135 | { | |
136 | grub_errno = 0; | |
137 | grub_free (pathname); | |
138 | return 0; | |
139 | } | |
140 | ||
141 | if (! ctx->human) | |
142 | grub_printf ("%-12llu", (unsigned long long) file->size); | |
143 | else | |
144 | grub_printf ("%-12s", grub_get_human_size (file->size, | |
145 | GRUB_HUMAN_SIZE_SHORT)); | |
146 | grub_file_close (file); | |
147 | grub_free (pathname); | |
148 | } | |
149 | else | |
150 | grub_printf ("%-12s", _("DIR")); | |
151 | ||
152 | if (info->mtimeset) | |
153 | { | |
154 | struct grub_datetime datetime; | |
155 | grub_unixtime2datetime (info->mtime, &datetime); | |
156 | if (ctx->human) | |
157 | grub_printf (" %d-%02d-%02d %02d:%02d:%02d %-11s ", | |
158 | datetime.year, datetime.month, datetime.day, | |
159 | datetime.hour, datetime.minute, | |
160 | datetime.second, | |
161 | grub_get_weekday_name (&datetime)); | |
162 | else | |
163 | grub_printf (" %04d%02d%02d%02d%02d%02d ", | |
164 | datetime.year, datetime.month, | |
165 | datetime.day, datetime.hour, | |
166 | datetime.minute, datetime.second); | |
167 | } | |
168 | grub_printf ("%s%s\n", filename, info->dir ? "/" : ""); | |
169 | ||
170 | return 0; | |
171 | } | |
172 | ||
173 | static grub_err_t | |
174 | grub_ls_list_files (char *dirname, int longlist, int all, int human) | |
175 | { | |
176 | char *device_name; | |
177 | grub_fs_t fs; | |
178 | const char *path; | |
179 | grub_device_t dev; | |
180 | ||
181 | device_name = grub_file_get_device_name (dirname); | |
182 | dev = grub_device_open (device_name); | |
183 | if (! dev) | |
184 | goto fail; | |
185 | ||
186 | fs = grub_fs_probe (dev); | |
187 | path = grub_strchr (dirname, ')'); | |
188 | if (! path) | |
189 | path = dirname; | |
190 | else | |
191 | path++; | |
192 | ||
193 | if (! path && ! device_name) | |
194 | { | |
195 | grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid argument"); | |
196 | goto fail; | |
197 | } | |
198 | ||
199 | if (! *path) | |
200 | { | |
201 | if (grub_errno == GRUB_ERR_UNKNOWN_FS) | |
202 | grub_errno = GRUB_ERR_NONE; | |
203 | ||
e1c95655 ES |
204 | grub_device_close (dev); |
205 | dev = NULL; | |
4d8d554a CW |
206 | grub_normal_print_device_info (device_name); |
207 | } | |
208 | else if (fs) | |
209 | { | |
210 | struct grub_ls_list_files_ctx ctx = { | |
211 | .dirname = dirname, | |
212 | .all = all, | |
213 | .human = human | |
214 | }; | |
215 | ||
216 | if (longlist) | |
217 | (fs->dir) (dev, path, print_files_long, &ctx); | |
218 | else | |
219 | (fs->dir) (dev, path, print_files, &ctx); | |
220 | ||
221 | if (grub_errno == GRUB_ERR_BAD_FILE_TYPE | |
222 | && path[grub_strlen (path) - 1] != '/') | |
223 | { | |
224 | /* PATH might be a regular file. */ | |
225 | char *p; | |
226 | grub_file_t file; | |
227 | struct grub_dirhook_info info; | |
228 | grub_errno = 0; | |
229 | ||
230 | grub_file_filter_disable_compression (); | |
231 | file = grub_file_open (dirname); | |
232 | if (! file) | |
233 | goto fail; | |
234 | ||
235 | grub_file_close (file); | |
236 | ||
237 | p = grub_strrchr (dirname, '/') + 1; | |
238 | dirname = grub_strndup (dirname, p - dirname); | |
239 | if (! dirname) | |
240 | goto fail; | |
241 | ||
242 | all = 1; | |
243 | grub_memset (&info, 0, sizeof (info)); | |
244 | if (longlist) | |
245 | print_files_long (p, &info, &ctx); | |
246 | else | |
247 | print_files (p, &info, &ctx); | |
248 | ||
249 | grub_free (dirname); | |
250 | } | |
251 | ||
252 | if (grub_errno == GRUB_ERR_NONE) | |
253 | grub_xputs ("\n"); | |
254 | ||
255 | grub_refresh (); | |
256 | } | |
257 | ||
258 | fail: | |
259 | if (dev) | |
260 | grub_device_close (dev); | |
261 | ||
262 | grub_free (device_name); | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | static grub_err_t | |
268 | grub_cmd_ls (grub_extcmd_context_t ctxt, int argc, char **args) | |
269 | { | |
270 | struct grub_arg_list *state = ctxt->state; | |
271 | int i; | |
272 | ||
273 | if (argc == 0) | |
274 | grub_ls_list_devices (state[0].set); | |
275 | else | |
276 | for (i = 0; i < argc; i++) | |
277 | grub_ls_list_files (args[i], state[0].set, state[2].set, | |
278 | state[1].set); | |
279 | ||
280 | return 0; | |
281 | } | |
282 | ||
283 | static grub_extcmd_t cmd; | |
284 | ||
285 | GRUB_MOD_INIT(ls) | |
286 | { | |
287 | cmd = grub_register_extcmd ("ls", grub_cmd_ls, 0, | |
288 | N_("[-l|-h|-a] [FILE ...]"), | |
289 | N_("List devices and files."), options); | |
290 | } | |
291 | ||
292 | GRUB_MOD_FINI(ls) | |
293 | { | |
294 | grub_unregister_extcmd (cmd); | |
295 | } |