1 | /*
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2 | * lsattr.c - List file attributes on an ext2 file system
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3 | *
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4 | * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr>
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5 | * Laboratoire MASI, Institut Blaise Pascal
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6 | * Universite Pierre et Marie Curie (Paris VI)
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7 | *
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8 | * This file can be redistributed under the terms of the GNU General
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9 | * Public License
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10 | */
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11 |
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12 | /*
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13 | * History:
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14 | * 93/10/30 - Creation
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15 | * 93/11/13 - Replace stat() calls by lstat() to avoid loops
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16 | * 94/02/27 - Integrated in Ted's distribution
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17 | * 98/12/29 - Display version info only when -V specified (G M Sipe)
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18 | */
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19 |
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20 | #include <sys/types.h>
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21 | #include <dirent.h>
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22 | #include <errno.h>
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23 | #include <fcntl.h>
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24 | #include <getopt.h>
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25 | #include <stdio.h>
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26 | #include <unistd.h>
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27 | #include <stdlib.h>
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28 | #include <string.h>
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29 | #include <sys/param.h>
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30 | #include <sys/stat.h>
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31 |
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32 | #include "ext2fs/ext2_fs.h"
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33 | #include "e2fsbb.h"
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34 | #include "e2p/e2p.h"
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35 |
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36 | #define OPT_RECUR 1
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37 | #define OPT_ALL 2
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38 | #define OPT_DIRS_OPT 4
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39 | #define OPT_PF_LONG 8
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40 | #define OPT_GENERATION 16
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41 | static int flags;
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42 |
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43 | #ifdef CONFIG_LFS
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44 | # define LSTAT lstat64
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45 | # define STRUCT_STAT struct stat64
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46 | #else
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47 | # define LSTAT lstat
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48 | # define STRUCT_STAT struct stat
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49 | #endif
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50 |
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51 | static void list_attributes(const char *name)
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52 | {
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53 | unsigned long fsflags;
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54 | unsigned long generation;
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55 |
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56 | if (fgetflags(name, &fsflags) == -1)
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57 | goto read_err;
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58 | if (flags & OPT_GENERATION) {
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59 | if (fgetversion(name, &generation) == -1)
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60 | goto read_err;
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61 | printf("%5lu ", generation);
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62 | }
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63 |
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64 | if (flags & OPT_PF_LONG) {
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65 | printf("%-28s ", name);
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66 | print_flags(stdout, fsflags, PFOPT_LONG);
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67 | printf("\n");
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68 | } else {
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69 | print_flags(stdout, fsflags, 0);
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70 | printf(" %s\n", name);
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71 | }
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72 |
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73 | return;
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74 | read_err:
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75 | bb_perror_msg("reading %s", name);
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76 | }
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77 |
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78 | static int lsattr_dir_proc(const char *, struct dirent *, void *);
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79 |
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80 | static void lsattr_args(const char *name)
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81 | {
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82 | STRUCT_STAT st;
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83 |
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84 | if (LSTAT(name, &st) == -1) {
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85 | bb_perror_msg("stating %s", name);
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86 | } else {
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87 | if (S_ISDIR(st.st_mode) && !(flags & OPT_DIRS_OPT))
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88 | iterate_on_dir(name, lsattr_dir_proc, NULL);
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89 | else
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90 | list_attributes(name);
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91 | }
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92 | }
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93 |
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94 | static int lsattr_dir_proc(const char *dir_name, struct dirent *de,
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95 | void *private)
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96 | {
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97 | STRUCT_STAT st;
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98 | char *path;
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99 |
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100 | path = concat_path_file(dir_name, de->d_name);
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101 |
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102 | if (LSTAT(path, &st) == -1)
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103 | bb_perror_msg(path);
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104 | else {
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105 | if (de->d_name[0] != '.' || (flags & OPT_ALL)) {
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106 | list_attributes(path);
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107 | if (S_ISDIR(st.st_mode) && (flags & OPT_RECUR) &&
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108 | (de->d_name[0] != '.' && (de->d_name[1] != '\0' ||
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109 | (de->d_name[1] != '.' && de->d_name[2] != '\0')))) {
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110 | printf("\n%s:\n", path);
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111 | iterate_on_dir(path, lsattr_dir_proc, NULL);
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112 | printf("\n");
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113 | }
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114 | }
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115 | }
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116 |
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117 | free(path);
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118 |
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119 | return 0;
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120 | }
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121 |
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122 | int lsattr_main(int argc, char **argv)
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123 | {
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124 | int i;
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125 |
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126 | flags = bb_getopt_ulflags(argc, argv, "Radlv");
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127 |
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128 | if (optind > argc - 1)
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129 | lsattr_args(".");
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130 | else
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131 | for (i = optind; i < argc; i++)
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132 | lsattr_args(argv[i]);
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133 |
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134 | return EXIT_SUCCESS;
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135 | }
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