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-rw-r--r--e2fsprogs/e2p/ls.c273
1 files changed, 273 insertions, 0 deletions
diff --git a/e2fsprogs/e2p/ls.c b/e2fsprogs/e2p/ls.c
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1/* vi: set sw=4 ts=4: */
2/*
3 * ls.c - List the contents of an ext2fs superblock
4 *
5 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
6 * Laboratoire MASI, Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *
9 * Copyright (C) 1995, 1996, 1997 Theodore Ts'o <tytso@mit.edu>
10 *
11 * This file can be redistributed under the terms of the GNU Library General
12 * Public License
13 */
14
15#include <stdio.h>
16#include <stdlib.h>
17#include <sys/types.h>
18#include <string.h>
19#include <grp.h>
20#include <pwd.h>
21#include <time.h>
22
23#include "e2p.h"
24
25static void print_user(unsigned short uid, FILE *f)
26{
27 struct passwd *pw = getpwuid(uid);
28 fprintf(f, "%u (user %s)\n", uid,
29 (pw == NULL ? "unknown" : pw->pw_name));
30}
31
32static void print_group(unsigned short gid, FILE *f)
33{
34 struct group *gr = getgrgid(gid);
35 fprintf(f, "%u (group %s)\n", gid,
36 (gr == NULL ? "unknown" : gr->gr_name));
37}
38
39#define MONTH_INT (86400 * 30)
40#define WEEK_INT (86400 * 7)
41#define DAY_INT (86400)
42#define HOUR_INT (60 * 60)
43#define MINUTE_INT (60)
44
45static const char *interval_string(unsigned int secs)
46{
47 static char buf[256], tmp[80];
48 int hr, min, num;
49
50 buf[0] = 0;
51
52 if (secs == 0)
53 return "<none>";
54
55 if (secs >= MONTH_INT) {
56 num = secs / MONTH_INT;
57 secs -= num*MONTH_INT;
58 sprintf(buf, "%d month%s", num, (num>1) ? "s" : "");
59 }
60 if (secs >= WEEK_INT) {
61 num = secs / WEEK_INT;
62 secs -= num*WEEK_INT;
63 sprintf(tmp, "%s%d week%s", buf[0] ? ", " : "",
64 num, (num>1) ? "s" : "");
65 strcat(buf, tmp);
66 }
67 if (secs >= DAY_INT) {
68 num = secs / DAY_INT;
69 secs -= num*DAY_INT;
70 sprintf(tmp, "%s%d day%s", buf[0] ? ", " : "",
71 num, (num>1) ? "s" : "");
72 strcat(buf, tmp);
73 }
74 if (secs > 0) {
75 hr = secs / HOUR_INT;
76 secs -= hr*HOUR_INT;
77 min = secs / MINUTE_INT;
78 secs -= min*MINUTE_INT;
79 sprintf(tmp, "%s%d:%02d:%02d", buf[0] ? ", " : "",
80 hr, min, secs);
81 strcat(buf, tmp);
82 }
83 return buf;
84}
85
86static void print_features(struct ext2_super_block * s, FILE *f)
87{
88#ifdef EXT2_DYNAMIC_REV
89 int i, j, printed=0;
90 __u32 *mask = &s->s_feature_compat, m;
91
92 fprintf(f, "Filesystem features: ");
93 for (i=0; i <3; i++,mask++) {
94 for (j=0,m=1; j < 32; j++, m<<=1) {
95 if (*mask & m) {
96 fprintf(f, " %s", e2p_feature2string(i, m));
97 printed++;
98 }
99 }
100 }
101 if (printed == 0)
102 fprintf(f, " (none)");
103 fprintf(f, "\n");
104#endif
105}
106
107static void print_mntopts(struct ext2_super_block * s, FILE *f)
108{
109#ifdef EXT2_DYNAMIC_REV
110 int i, printed=0;
111 __u32 mask = s->s_default_mount_opts, m;
112
113 fprintf(f, "Default mount options: ");
114 if (mask & EXT3_DEFM_JMODE) {
115 fprintf(f, " %s", e2p_mntopt2string(mask & EXT3_DEFM_JMODE));
116 printed++;
117 }
118 for (i=0,m=1; i < 32; i++, m<<=1) {
119 if (m & EXT3_DEFM_JMODE)
120 continue;
121 if (mask & m) {
122 fprintf(f, " %s", e2p_mntopt2string(m));
123 printed++;
124 }
125 }
126 if (printed == 0)
127 fprintf(f, " (none)");
128 fprintf(f, "\n");
129#endif
130}
131
132
133#ifndef EXT2_INODE_SIZE
134#define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
135#endif
136
137#ifndef EXT2_GOOD_OLD_REV
138#define EXT2_GOOD_OLD_REV 0
139#endif
140
141void list_super2(struct ext2_super_block * sb, FILE *f)
142{
143 int inode_blocks_per_group;
144 char buf[80], *str;
145 time_t tm;
146
147 inode_blocks_per_group = (((sb->s_inodes_per_group *
148 EXT2_INODE_SIZE(sb)) +
149 EXT2_BLOCK_SIZE(sb) - 1) /
150 EXT2_BLOCK_SIZE(sb));
151 if (sb->s_volume_name[0]) {
152 memset(buf, 0, sizeof(buf));
153 strncpy(buf, sb->s_volume_name, sizeof(sb->s_volume_name));
154 } else
155 strcpy(buf, "<none>");
156 fprintf(f, "Filesystem volume name: %s\n", buf);
157 if (sb->s_last_mounted[0]) {
158 memset(buf, 0, sizeof(buf));
159 strncpy(buf, sb->s_last_mounted, sizeof(sb->s_last_mounted));
160 } else
161 strcpy(buf, "<not available>");
162 fprintf(f,
163 "Last mounted on: %s\n"
164 "Filesystem UUID: %s\n"
165 "Filesystem magic number: 0x%04X\n"
166 "Filesystem revision #: %d",
167 buf, e2p_uuid2str(sb->s_uuid), sb->s_magic, sb->s_rev_level);
168 if (sb->s_rev_level == EXT2_GOOD_OLD_REV) {
169 fprintf(f, " (original)\n");
170#ifdef EXT2_DYNAMIC_REV
171 } else if (sb->s_rev_level == EXT2_DYNAMIC_REV) {
172 fprintf(f, " (dynamic)\n");
173#endif
174 } else
175 fprintf(f, " (unknown)\n");
176 print_features(sb, f);
177 print_mntopts(sb, f);
178 fprintf(f, "Filesystem state: ");
179 print_fs_state (f, sb->s_state);
180 fprintf(f, "\nErrors behavior: ");
181 print_fs_errors(f, sb->s_errors);
182 str = e2p_os2string(sb->s_creator_os);
183 fprintf(f,
184 "\n"
185 "Filesystem OS type: %s\n"
186 "Inode count: %u\n"
187 "Block count: %u\n"
188 "Reserved block count: %u\n"
189 "Free blocks: %u\n"
190 "Free inodes: %u\n"
191 "First block: %u\n"
192 "Block size: %u\n"
193 "Fragment size: %u\n",
194 str, sb->s_inodes_count, sb->s_blocks_count, sb->s_r_blocks_count,
195 sb->s_free_blocks_count, sb->s_free_inodes_count,
196 sb->s_first_data_block, EXT2_BLOCK_SIZE(sb), EXT2_FRAG_SIZE(sb));
197 free(str);
198 if (sb->s_reserved_gdt_blocks)
199 fprintf(f, "Reserved GDT blocks: %u\n",
200 sb->s_reserved_gdt_blocks);
201 fprintf(f,
202 "Blocks per group: %u\n"
203 "Fragments per group: %u\n"
204 "Inodes per group: %u\n"
205 "Inode blocks per group: %u\n",
206 sb->s_blocks_per_group, sb->s_frags_per_group,
207 sb->s_inodes_per_group, inode_blocks_per_group);
208 if (sb->s_first_meta_bg)
209 fprintf(f, "First meta block group: %u\n",
210 sb->s_first_meta_bg);
211 if (sb->s_mkfs_time) {
212 tm = sb->s_mkfs_time;
213 fprintf(f, "Filesystem created: %s", ctime(&tm));
214 }
215 tm = sb->s_mtime;
216 fprintf(f, "Last mount time: %s",
217 sb->s_mtime ? ctime(&tm) : "n/a\n");
218 tm = sb->s_wtime;
219 fprintf(f,
220 "Last write time: %s"
221 "Mount count: %u\n"
222 "Maximum mount count: %d\n",
223 ctime(&tm), sb->s_mnt_count, sb->s_max_mnt_count);
224 tm = sb->s_lastcheck;
225 fprintf(f,
226 "Last checked: %s"
227 "Check interval: %u (%s)\n",
228 ctime(&tm),
229 sb->s_checkinterval, interval_string(sb->s_checkinterval));
230 if (sb->s_checkinterval)
231 {
232 time_t next;
233
234 next = sb->s_lastcheck + sb->s_checkinterval;
235 fprintf(f, "Next check after: %s", ctime(&next));
236 }
237 fprintf(f, "Reserved blocks uid: ");
238 print_user(sb->s_def_resuid, f);
239 fprintf(f, "Reserved blocks gid: ");
240 print_group(sb->s_def_resgid, f);
241 if (sb->s_rev_level >= EXT2_DYNAMIC_REV) {
242 fprintf(f,
243 "First inode: %d\n"
244 "Inode size: %d\n",
245 sb->s_first_ino, sb->s_inode_size);
246 }
247 if (!e2p_is_null_uuid(sb->s_journal_uuid))
248 fprintf(f, "Journal UUID: %s\n",
249 e2p_uuid2str(sb->s_journal_uuid));
250 if (sb->s_journal_inum)
251 fprintf(f, "Journal inode: %u\n",
252 sb->s_journal_inum);
253 if (sb->s_journal_dev)
254 fprintf(f, "Journal device: 0x%04x\n",
255 sb->s_journal_dev);
256 if (sb->s_last_orphan)
257 fprintf(f, "First orphan inode: %u\n",
258 sb->s_last_orphan);
259 if ((sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
260 sb->s_def_hash_version)
261 fprintf(f, "Default directory hash: %s\n",
262 e2p_hash2string(sb->s_def_hash_version));
263 if (!e2p_is_null_uuid(sb->s_hash_seed))
264 fprintf(f, "Directory Hash Seed: %s\n",
265 e2p_uuid2str(sb->s_hash_seed));
266 if (sb->s_jnl_backup_type) {
267 fprintf(f, "Journal backup: ");
268 if (sb->s_jnl_backup_type == 1)
269 fprintf(f, "inode blocks\n");
270 else
271 fprintf(f, "type %u\n", sb->s_jnl_backup_type);
272 }
273}
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