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;
64 strncpy(name, dirent->name, thislen);
65 name[thislen] = '\0';
66 ino = dirent->inode;
67
68 if (entry == DIRENT_DELETED_FILE) {
69 lbr = '<';
70 rbr = '>';
71 ino = 0;
72 } else {
73 lbr = rbr = ' ';
74 }
75 if (ls->options & PARSE_OPT) {
76 if (ino) {
77 if (debugfs_read_inode(ino, &inode, name))
78 return 0;
79 } else
80 memset(&inode, 0, sizeof(struct ext2_inode));
81 fprintf(ls->f,"/%u/%06o/%d/%d/%s/",ino,inode.i_mode,inode.i_uid, inode.i_gid,name);
82 if (LINUX_S_ISDIR(inode.i_mode))
83 fprintf(ls->f, "/");
84 else
85 fprintf(ls->f, "%lld/", EXT2_I_SIZE(&inode));
86 fprintf(ls->f, "\n");
87 } else if (ls->options & LONG_OPT) {
88 if (ino) {
89 if (debugfs_read_inode(ino, &inode, name))
90 return 0;
91 modtime = inode.i_mtime;
92 tm_p = localtime(&modtime);
93 sprintf(datestr, "%2d-%s-%4d %02d:%02d",
94 tm_p->tm_mday, monstr[tm_p->tm_mon],
95 1900 + tm_p->tm_year, tm_p->tm_hour,
96 tm_p->tm_min);
97 } else {
98 strcpy(datestr, " ");
99 memset(&inode, 0, sizeof(struct ext2_inode));
100 }
101 fprintf(ls->f, "%c%6u%c %6o (%d) %5d %5d ", lbr, ino, rbr,
102 inode.i_mode, dirent->name_len >> 8,
103 inode_uid(inode), inode_gid(inode));
104 if (LINUX_S_ISDIR(inode.i_mode))
105 fprintf(ls->f, "%5d", inode.i_size);
106 else
107 fprintf(ls->f, "%5llu", EXT2_I_SIZE(&inode));
108 fprintf (ls->f, " %s %s\n", datestr, name);
109 } else {
110 sprintf(tmp, "%c%u%c (%d) %s ", lbr, dirent->inode, rbr,
111 dirent->rec_len, name);
112 thislen = strlen(tmp);
113
114 if (ls->col + thislen > 80) {
115 fprintf(ls->f, "\n");
116 ls->col = 0;
117 }
118 fprintf(ls->f, "%s", tmp);
119 ls->col += thislen;
120 }
121 return 0;
122 }
123
do_list_dir(int argc,char * argv[])124 void do_list_dir(int argc, char *argv[])
125 {
126 ext2_ino_t inode;
127 int retval;
128 int c;
129 int flags;
130 struct list_dir_struct ls;
131
132 ls.options = 0;
133 if (check_fs_open(argv[0]))
134 return;
135
136 reset_getopt();
137 while ((c = getopt (argc, argv, "dlp")) != EOF) {
138 switch (c) {
139 case 'l':
140 ls.options |= LONG_OPT;
141 break;
142 case 'd':
143 ls.options |= DELETED_OPT;
144 break;
145 case 'p':
146 ls.options |= PARSE_OPT;
147 break;
148 default:
149 goto print_usage;
150 }
151 }
152
153 if (argc > optind+1) {
154 print_usage:
155 com_err(0, 0, "Usage: ls [-l] [-d] [-p] file");
156 return;
157 }
158
159 if (argc == optind)
160 inode = cwd;
161 else
162 inode = string_to_inode(argv[optind]);
163 if (!inode)
164 return;
165
166 ls.f = open_pager();
167 ls.col = 0;
168 flags = DIRENT_FLAG_INCLUDE_EMPTY;
169 if (ls.options & DELETED_OPT)
170 flags |= DIRENT_FLAG_INCLUDE_REMOVED;
171
172 retval = ext2fs_dir_iterate2(current_fs, inode, flags,
173 0, list_dir_proc, &ls);
174 fprintf(ls.f, "\n");
175 close_pager(ls.f);
176 if (retval)
177 com_err(argv[1], retval, 0);
178
179 return;
180 }
181
182
183