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 34 struct list_dir_struct { 35 FILE *f; 36 int col; 37 int options; 38 }; 39 40 static const char *monstr[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", 41 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; 42 43 static int list_dir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)), 44 int entry, 45 struct ext2_dir_entry *dirent, 46 int offset EXT2FS_ATTR((unused)), 47 int blocksize EXT2FS_ATTR((unused)), 48 char *buf EXT2FS_ATTR((unused)), 49 void *private) 50 { 51 struct ext2_inode inode; 52 ext2_ino_t ino; 53 struct tm *tm_p; 54 time_t modtime; 55 char name[EXT2_NAME_LEN + 1]; 56 char tmp[EXT2_NAME_LEN + 16]; 57 char datestr[80]; 58 char lbr, rbr; 59 int thislen; 60 struct list_dir_struct *ls = (struct list_dir_struct *) private; 61 62 thislen = ((dirent->name_len & 0xFF) < EXT2_NAME_LEN) ? 63 (dirent->name_len & 0xFF) : EXT2_NAME_LEN; 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 & LONG_OPT) { 76 if (ino) { 77 if (debugfs_read_inode(ino, &inode, name)) 78 return 0; 79 modtime = inode.i_mtime; 80 tm_p = localtime(&modtime); 81 sprintf(datestr, "%2d-%s-%4d %02d:%02d", 82 tm_p->tm_mday, monstr[tm_p->tm_mon], 83 1900 + tm_p->tm_year, tm_p->tm_hour, 84 tm_p->tm_min); 85 } else { 86 strcpy(datestr, " "); 87 memset(&inode, 0, sizeof(struct ext2_inode)); 88 } 89 fprintf(ls->f, "%c%6u%c %6o (%d) %5d %5d ", lbr, ino, rbr, 90 inode.i_mode, dirent->name_len >> 8, 91 inode_uid(inode), inode_gid(inode)); 92 if (LINUX_S_ISDIR(inode.i_mode)) 93 fprintf(ls->f, "%5d", inode.i_size); 94 else 95 fprintf(ls->f, "%5llu", inode.i_size | 96 ((unsigned long long) inode.i_size_high << 32)); 97 fprintf (ls->f, " %s %s\n", datestr, name); 98 } else { 99 sprintf(tmp, "%c%u%c (%d) %s ", lbr, dirent->inode, rbr, 100 dirent->rec_len, name); 101 thislen = strlen(tmp); 102 103 if (ls->col + thislen > 80) { 104 fprintf(ls->f, "\n"); 105 ls->col = 0; 106 } 107 fprintf(ls->f, "%s", tmp); 108 ls->col += thislen; 109 } 110 return 0; 111 } 112 113 void do_list_dir(int argc, char *argv[]) 114 { 115 ext2_ino_t inode; 116 int retval; 117 int c; 118 int flags; 119 struct list_dir_struct ls; 120 121 ls.options = 0; 122 if (check_fs_open(argv[0])) 123 return; 124 125 reset_getopt(); 126 while ((c = getopt (argc, argv, "dl")) != EOF) { 127 switch (c) { 128 case 'l': 129 ls.options |= LONG_OPT; 130 break; 131 case 'd': 132 ls.options |= DELETED_OPT; 133 break; 134 default: 135 goto print_usage; 136 } 137 } 138 139 if (argc > optind+1) { 140 print_usage: 141 com_err(0, 0, "Usage: ls [-l] [-d] file"); 142 return; 143 } 144 145 if (argc == optind) 146 inode = cwd; 147 else 148 inode = string_to_inode(argv[optind]); 149 if (!inode) 150 return; 151 152 ls.f = open_pager(); 153 ls.col = 0; 154 flags = DIRENT_FLAG_INCLUDE_EMPTY; 155 if (ls.options & DELETED_OPT) 156 flags |= DIRENT_FLAG_INCLUDE_REMOVED; 157 158 retval = ext2fs_dir_iterate2(current_fs, inode, flags, 159 0, list_dir_proc, &ls); 160 fprintf(ls.f, "\n"); 161 close_pager(ls.f); 162 if (retval) 163 com_err(argv[1], retval, 0); 164 165 return; 166 } 167 168 169
