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 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 } 122 123 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
