1 /*
2 * ls.c --- list directories
3 *
4 * Copyright (C) 1997 Theodore Ts'o. This file may be redistributed
5 * under the terms of the GNU Public License.
6 */
7
8 #include <stdio.h>
9 #include <unistd.h>
10 #include <stdlib.h>
11 #include <ctype.h>
12 #include <string.h>
13 #include <time.h>
14 #ifdef HAVE_ERRNO_H
15 #include <errno.h>
16 #endif
17 #include <sys/types.h>
18 #ifdef HAVE_GETOPT_H
19 #include <getopt.h>
20 #else
21 extern int optind;
22 extern char *optarg;
23 #endif
24
25 #include "debugfs.h"
26
27 /*
28 * list directory
29 */
30
31 #define LONG_OPT 0x0001
32 #define DELETED_OPT 0x0002
33 #define PARSE_OPT 0x0004
34
35 struct list_dir_struct {
36 FILE *f;
37 int col;
38 int options;
39 };
40
41 static const char *monstr[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
42 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
43
list_dir_proc(ext2_ino_t dir EXT2FS_ATTR ((unused)),int entry,struct ext2_dir_entry * dirent,int offset EXT2FS_ATTR ((unused)),int blocksize EXT2FS_ATTR ((unused)),char * buf EXT2FS_ATTR ((unused)),void * private)44 static int list_dir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
45 int entry,
46 struct ext2_dir_entry *dirent,
47 int offset EXT2FS_ATTR((unused)),
48 int blocksize EXT2FS_ATTR((unused)),
49 char *buf EXT2FS_ATTR((unused)),
50 void *private)
51 {
52 struct ext2_inode inode;
53 ext2_ino_t ino;
54 struct tm *tm_p;
55 time_t modtime;
56 char name[EXT2_NAME_LEN + 1];
57 char tmp[EXT2_NAME_LEN + 16];
58 char datestr[80];
59 char lbr, rbr;
60 int thislen;
61 struct list_dir_struct *ls = (struct list_dir_struct *) private;
62
63 thislen = ((dirent->name_len & 0xFF) < EXT2_NAME_LEN) ?
64 (dirent->name_len & 0xFF) : EXT2_NAME_LEN;
65 strncpy(name, dirent->name, thislen);
66 name[thislen] = '\0';
67 ino = dirent->inode;
68
69 if (entry == DIRENT_DELETED_FILE) {
70 lbr = '<';
71 rbr = '>';
72 ino = 0;
73 } else {
74 lbr = rbr = ' ';
75 }
76 if (ls->options & PARSE_OPT) {
77 if (ino && debugfs_read_inode(ino, &inode, name)) return 0;
78 fprintf(ls->f,"/%u/%06o/%d/%d/%s/",ino,inode.i_mode,inode.i_uid, inode.i_gid,name);
79 if (LINUX_S_ISDIR(inode.i_mode))
80 fprintf(ls->f, "/");
81 else
82 fprintf(ls->f, "%lld/", inode.i_size | ((__u64)inode.i_size_high << 32));
83 fprintf(ls->f, "\n");
84 }
85 else if (ls->options & LONG_OPT) {
86 if (ino) {
87 if (debugfs_read_inode(ino, &inode, name))
88 return 0;
89 modtime = inode.i_mtime;
90 tm_p = localtime(&modtime);
91 sprintf(datestr, "%2d-%s-%4d %02d:%02d",
92 tm_p->tm_mday, monstr[tm_p->tm_mon],
93 1900 + tm_p->tm_year, tm_p->tm_hour,
94 tm_p->tm_min);
95 } else {
96 strcpy(datestr, " ");
97 memset(&inode, 0, sizeof(struct ext2_inode));
98 }
99 fprintf(ls->f, "%c%6u%c %6o (%d) %5d %5d ", lbr, ino, rbr,
100 inode.i_mode, dirent->name_len >> 8,
101 inode_uid(inode), inode_gid(inode));
102 if (LINUX_S_ISDIR(inode.i_mode))
103 fprintf(ls->f, "%5d", inode.i_size);
104 else
105 fprintf(ls->f, "%5llu", inode.i_size |
106 ((unsigned long long) inode.i_size_high << 32));
107 fprintf (ls->f, " %s %s\n", datestr, name);
108 } else {
109 sprintf(tmp, "%c%u%c (%d) %s ", lbr, dirent->inode, rbr,
110 dirent->rec_len, name);
111 thislen = strlen(tmp);
112
113 if (ls->col + thislen > 80) {
114 fprintf(ls->f, "\n");
115 ls->col = 0;
116 }
117 fprintf(ls->f, "%s", tmp);
118 ls->col += thislen;
119 }
120 return 0;
121 }
122
do_list_dir(int argc,char * argv[])123 void do_list_dir(int argc, char *argv[])
124 {
125 ext2_ino_t inode;
126 int retval;
127 int c;
128 int flags;
129 struct list_dir_struct ls;
130
131 ls.options = 0;
132 if (check_fs_open(argv[0]))
133 return;
134
135 reset_getopt();
136 while ((c = getopt (argc, argv, "dlp")) != EOF) {
137 switch (c) {
138 case 'l':
139 ls.options |= LONG_OPT;
140 break;
141 case 'd':
142 ls.options |= DELETED_OPT;
143 break;
144 case 'p':
145 ls.options |= PARSE_OPT;
146 break;
147 default:
148 goto print_usage;
149 }
150 }
151
152 if (argc > optind+1) {
153 print_usage:
154 com_err(0, 0, "Usage: ls [-l] [-d] [-p] file");
155 return;
156 }
157
158 if (argc == optind)
159 inode = cwd;
160 else
161 inode = string_to_inode(argv[optind]);
162 if (!inode)
163 return;
164
165 ls.f = open_pager();
166 ls.col = 0;
167 flags = DIRENT_FLAG_INCLUDE_EMPTY;
168 if (ls.options & DELETED_OPT)
169 flags |= DIRENT_FLAG_INCLUDE_REMOVED;
170
171 retval = ext2fs_dir_iterate2(current_fs, inode, flags,
172 0, list_dir_proc, &ls);
173 fprintf(ls.f, "\n");
174 close_pager(ls.f);
175 if (retval)
176 com_err(argv[1], retval, 0);
177
178 return;
179 }
180
181
182