1 | /* vi:set ts=4:*/
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2 | /*
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3 | * stat -- display file or file system status
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4 | *
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5 | * Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation.
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6 | * Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
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7 | * Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
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8 | *
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9 | * Written by Michael Meskes
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10 | * Taken from coreutils and turned into a busybox applet by Mike Frysinger
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11 | *
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12 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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13 | */
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14 |
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15 | #include <stdio.h>
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16 | #include <stdint.h>
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17 | #include <sys/types.h>
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18 | #include <pwd.h>
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19 | #include <grp.h>
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20 | #include <sys/vfs.h>
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21 | #include <time.h>
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22 | #include <getopt.h> /* optind */
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23 | #include <sys/stat.h>
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24 | #include <sys/statfs.h>
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25 | #include <sys/statvfs.h>
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26 | #include <string.h>
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27 | #include "busybox.h"
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28 |
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29 | /* vars to control behavior */
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30 | #define OPT_TERSE 2
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31 | #define OPT_DEREFERENCE 4
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32 | static long flags;
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33 |
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34 | static char const *file_type(struct stat const *st)
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35 | {
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36 | /* See POSIX 1003.1-2001 XCU Table 4-8 lines 17093-17107
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37 | * for some of these formats.
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38 | * To keep diagnostics grammatical in English, the
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39 | * returned string must start with a consonant.
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40 | */
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41 | if (S_ISREG(st->st_mode)) return st->st_size == 0 ? "regular empty file" : "regular file";
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42 | if (S_ISDIR(st->st_mode)) return "directory";
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43 | if (S_ISBLK(st->st_mode)) return "block special file";
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44 | if (S_ISCHR(st->st_mode)) return "character special file";
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45 | if (S_ISFIFO(st->st_mode)) return "fifo";
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46 | if (S_ISLNK(st->st_mode)) return "symbolic link";
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47 | if (S_ISSOCK(st->st_mode)) return "socket";
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48 | if (S_TYPEISMQ(st)) return "message queue";
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49 | if (S_TYPEISSEM(st)) return "semaphore";
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50 | if (S_TYPEISSHM(st)) return "shared memory object";
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51 | #ifdef S_TYPEISTMO
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52 | if (S_TYPEISTMO(st)) return "typed memory object";
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53 | #endif
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54 | return "weird file";
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55 | }
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56 |
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57 | static char const *human_time(time_t t)
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58 | {
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59 | static char *str;
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60 | str = ctime(&t);
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61 | str[strlen(str)-1] = '\0';
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62 | return str;
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63 | }
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64 |
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65 | /* Return the type of the specified file system.
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66 | * Some systems have statfvs.f_basetype[FSTYPSZ]. (AIX, HP-UX, and Solaris)
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67 | * Others have statfs.f_fstypename[MFSNAMELEN]. (NetBSD 1.5.2)
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68 | * Still others have neither and have to get by with f_type (Linux).
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69 | */
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70 | static char const *human_fstype(long f_type)
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71 | {
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72 | int i;
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73 | static const struct types {
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74 | long type;
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75 | const char *fs;
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76 | } humantypes[] = {
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77 | { 0xADFF, "affs" },
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78 | { 0x1Cd1, "devpts" },
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79 | { 0x137D, "ext" },
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80 | { 0xEF51, "ext2" },
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81 | { 0xEF53, "ext2/ext3" },
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82 | { 0x3153464a, "jfs" },
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83 | { 0x58465342, "xfs" },
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84 | { 0xF995E849, "hpfs" },
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85 | { 0x9660, "isofs" },
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86 | { 0x4000, "isofs" },
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87 | { 0x4004, "isofs" },
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88 | { 0x137F, "minix" },
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89 | { 0x138F, "minix (30 char.)" },
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90 | { 0x2468, "minix v2" },
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91 | { 0x2478, "minix v2 (30 char.)" },
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92 | { 0x4d44, "msdos" },
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93 | { 0x4006, "fat" },
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94 | { 0x564c, "novell" },
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95 | { 0x6969, "nfs" },
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96 | { 0x9fa0, "proc" },
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97 | { 0x517B, "smb" },
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98 | { 0x012FF7B4, "xenix" },
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99 | { 0x012FF7B5, "sysv4" },
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100 | { 0x012FF7B6, "sysv2" },
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101 | { 0x012FF7B7, "coh" },
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102 | { 0x00011954, "ufs" },
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103 | { 0x012FD16D, "xia" },
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104 | { 0x5346544e, "ntfs" },
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105 | { 0x1021994, "tmpfs" },
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106 | { 0x52654973, "reiserfs" },
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107 | { 0x28cd3d45, "cramfs" },
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108 | { 0x7275, "romfs" },
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109 | { 0x858458f6, "romfs" },
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110 | { 0x73717368, "squashfs" },
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111 | { 0x62656572, "sysfs" },
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112 | { 0, "UNKNOWN" }
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113 | };
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114 | for (i=0; humantypes[i].type; ++i)
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115 | if (humantypes[i].type == f_type)
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116 | break;
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117 | return humantypes[i].fs;
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118 | }
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119 |
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120 | #ifdef CONFIG_FEATURE_STAT_FORMAT
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121 | /* print statfs info */
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122 | static void print_statfs(char *pformat, size_t buf_len, char m,
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123 | char const *filename, void const *data)
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124 | {
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125 | struct statfs const *statfsbuf = data;
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126 |
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127 | switch (m) {
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128 | case 'n':
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129 | strncat(pformat, "s", buf_len);
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130 | printf(pformat, filename);
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131 | break;
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132 | case 'i':
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133 | strncat(pformat, "Lx", buf_len);
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134 | printf(pformat, statfsbuf->f_fsid);
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135 | break;
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136 | case 'l':
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137 | strncat(pformat, "lu", buf_len);
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138 | printf(pformat, statfsbuf->f_namelen);
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139 | break;
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140 | case 't':
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141 | strncat(pformat, "lx", buf_len);
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142 | printf(pformat, (unsigned long int) (statfsbuf->f_type)); /* no equiv. */
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143 | break;
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144 | case 'T':
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145 | strncat(pformat, "s", buf_len);
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146 | printf(pformat, human_fstype(statfsbuf->f_type));
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147 | break;
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148 | case 'b':
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149 | strncat(pformat, "jd", buf_len);
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150 | printf(pformat, (intmax_t) (statfsbuf->f_blocks));
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151 | break;
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152 | case 'f':
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153 | strncat(pformat, "jd", buf_len);
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154 | printf(pformat, (intmax_t) (statfsbuf->f_bfree));
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155 | break;
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156 | case 'a':
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157 | strncat(pformat, "jd", buf_len);
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158 | printf(pformat, (intmax_t) (statfsbuf->f_bavail));
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159 | break;
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160 | case 'S':
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161 | case 's':
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162 | strncat(pformat, "lu", buf_len);
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163 | printf(pformat, (unsigned long int) (statfsbuf->f_bsize));
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164 | break;
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165 | case 'c':
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166 | strncat(pformat, "jd", buf_len);
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167 | printf(pformat, (intmax_t) (statfsbuf->f_files));
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168 | break;
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169 | case 'd':
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170 | strncat(pformat, "jd", buf_len);
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171 | printf(pformat, (intmax_t) (statfsbuf->f_ffree));
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172 | break;
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173 | default:
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174 | strncat(pformat, "c", buf_len);
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175 | printf(pformat, m);
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176 | break;
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177 | }
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178 | }
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179 |
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180 | /* print stat info */
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181 | static void print_stat(char *pformat, size_t buf_len, char m,
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182 | char const *filename, void const *data)
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183 | {
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184 | #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
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185 | struct stat *statbuf = (struct stat *) data;
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186 | struct passwd *pw_ent;
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187 | struct group *gw_ent;
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188 |
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189 | switch (m) {
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190 | case 'n':
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191 | strncat(pformat, "s", buf_len);
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192 | printf(pformat, filename);
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193 | break;
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194 | case 'N':
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195 | strncat(pformat, "s", buf_len);
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196 | if (S_ISLNK(statbuf->st_mode)) {
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197 | char *linkname = xreadlink(filename);
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198 | if (linkname == NULL) {
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199 | bb_perror_msg("cannot read symbolic link '%s'", filename);
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200 | return;
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201 | }
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202 | /*printf("\"%s\" -> \"%s\"", filename, linkname); */
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203 | printf(pformat, filename);
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204 | printf(" -> ");
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205 | printf(pformat, linkname);
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206 | } else {
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207 | printf(pformat, filename);
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208 | }
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209 | break;
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210 | case 'd':
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211 | strncat(pformat, "ju", buf_len);
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212 | printf(pformat, (uintmax_t) statbuf->st_dev);
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213 | break;
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214 | case 'D':
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215 | strncat(pformat, "jx", buf_len);
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216 | printf(pformat, (uintmax_t) statbuf->st_dev);
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217 | break;
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218 | case 'i':
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219 | strncat(pformat, "ju", buf_len);
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220 | printf(pformat, (uintmax_t) statbuf->st_ino);
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221 | break;
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222 | case 'a':
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223 | strncat(pformat, "lo", buf_len);
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224 | printf(pformat, (unsigned long int) (statbuf->st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)));
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225 | break;
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226 | case 'A':
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227 | strncat(pformat, "s", buf_len);
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228 | printf(pformat, bb_mode_string(statbuf->st_mode));
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229 | break;
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230 | case 'f':
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231 | strncat(pformat, "lx", buf_len);
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232 | printf(pformat, (unsigned long int) statbuf->st_mode);
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233 | break;
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234 | case 'F':
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235 | strncat(pformat, "s", buf_len);
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236 | printf(pformat, file_type(statbuf));
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237 | break;
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238 | case 'h':
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239 | strncat(pformat, "lu", buf_len);
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240 | printf(pformat, (unsigned long int) statbuf->st_nlink);
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241 | break;
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242 | case 'u':
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243 | strncat(pformat, "lu", buf_len);
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244 | printf(pformat, (unsigned long int) statbuf->st_uid);
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245 | break;
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246 | case 'U':
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247 | strncat(pformat, "s", buf_len);
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248 | setpwent();
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249 | pw_ent = getpwuid(statbuf->st_uid);
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250 | printf(pformat, (pw_ent != 0L) ? pw_ent->pw_name : "UNKNOWN");
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251 | break;
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252 | case 'g':
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253 | strncat(pformat, "lu", buf_len);
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254 | printf(pformat, (unsigned long int) statbuf->st_gid);
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255 | break;
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256 | case 'G':
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257 | strncat(pformat, "s", buf_len);
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258 | setgrent();
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259 | gw_ent = getgrgid(statbuf->st_gid);
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260 | printf(pformat, (gw_ent != 0L) ? gw_ent->gr_name : "UNKNOWN");
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261 | break;
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262 | case 't':
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263 | strncat(pformat, "lx", buf_len);
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264 | printf(pformat, (unsigned long int) major(statbuf->st_rdev));
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265 | break;
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266 | case 'T':
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267 | strncat(pformat, "lx", buf_len);
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268 | printf(pformat, (unsigned long int) minor(statbuf->st_rdev));
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269 | break;
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270 | case 's':
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271 | strncat(pformat, "ju", buf_len);
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272 | printf(pformat, (uintmax_t) (statbuf->st_size));
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273 | break;
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274 | case 'B':
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275 | strncat(pformat, "lu", buf_len);
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276 | printf(pformat, (unsigned long int) 512); //ST_NBLOCKSIZE
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277 | break;
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278 | case 'b':
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279 | strncat(pformat, "ju", buf_len);
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280 | printf(pformat, (uintmax_t) statbuf->st_blocks);
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281 | break;
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282 | case 'o':
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283 | strncat(pformat, "lu", buf_len);
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284 | printf(pformat, (unsigned long int) statbuf->st_blksize);
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285 | break;
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286 | case 'x':
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287 | strncat(pformat, "s", buf_len);
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288 | printf(pformat, human_time(statbuf->st_atime));
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289 | break;
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290 | case 'X':
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291 | strncat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu", buf_len);
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292 | printf(pformat, (unsigned long int) statbuf->st_atime);
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293 | break;
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294 | case 'y':
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295 | strncat(pformat, "s", buf_len);
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296 | printf(pformat, human_time(statbuf->st_mtime));
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297 | break;
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298 | case 'Y':
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299 | strncat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu", buf_len);
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300 | printf(pformat, (unsigned long int) statbuf->st_mtime);
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301 | break;
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302 | case 'z':
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303 | strncat(pformat, "s", buf_len);
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304 | printf(pformat, human_time(statbuf->st_ctime));
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305 | break;
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306 | case 'Z':
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307 | strncat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu", buf_len);
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308 | printf(pformat, (unsigned long int) statbuf->st_ctime);
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309 | break;
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310 | default:
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311 | strncat(pformat, "c", buf_len);
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312 | printf(pformat, m);
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313 | break;
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314 | }
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315 | }
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316 |
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317 | static void print_it(char const *masterformat, char const *filename,
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318 | void (*print_func) (char *, size_t, char, char const *, void const *),
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319 | void const *data)
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320 | {
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321 | char *b;
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322 |
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323 | /* create a working copy of the format string */
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324 | char *format = bb_xstrdup(masterformat);
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325 |
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326 | /* Add 2 to accommodate our conversion of the stat `%s' format string
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327 | * to the printf `%llu' one. */
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328 | size_t n_alloc = strlen(format) + 2 + 1;
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329 | char *dest = xmalloc(n_alloc);
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330 |
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331 | b = format;
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332 | while (b) {
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333 | char *p = strchr(b, '%');
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334 | if (p != NULL) {
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335 | size_t len;
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336 | *p++ = '\0';
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337 | fputs(b, stdout);
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338 |
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339 | len = strspn(p, "#-+.I 0123456789");
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340 | dest[0] = '%';
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341 | memcpy(dest + 1, p, len);
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342 | dest[1 + len] = 0;
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343 | p += len;
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344 |
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345 | b = p + 1;
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346 | switch (*p) {
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347 | case '\0':
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348 | b = NULL;
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349 | /* fall through */
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350 | case '%':
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351 | putchar('%');
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352 | break;
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353 | default:
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354 | print_func(dest, n_alloc, *p, filename, data);
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355 | break;
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356 | }
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357 |
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358 | } else {
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359 | fputs(b, stdout);
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360 | b = NULL;
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361 | }
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362 | }
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363 |
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364 | free(format);
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365 | free(dest);
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366 | }
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367 | #endif
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368 |
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369 | /* Stat the file system and print what we find. */
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370 | static int do_statfs(char const *filename, char const *format)
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371 | {
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372 | struct statfs statfsbuf;
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373 |
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374 | if (statfs(filename, &statfsbuf) != 0) {
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375 | bb_perror_msg("cannot read file system information for '%s'", filename);
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376 | return 0;
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377 | }
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378 |
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379 | #ifdef CONFIG_FEATURE_STAT_FORMAT
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380 | if (format == NULL)
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381 | format = (flags & OPT_TERSE
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382 | ? "%n %i %l %t %s %b %f %a %c %d\n"
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383 | : " File: \"%n\"\n"
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384 | " ID: %-8i Namelen: %-7l Type: %T\n"
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385 | "Block size: %-10s\n"
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386 | "Blocks: Total: %-10b Free: %-10f Available: %a\n"
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387 | "Inodes: Total: %-10c Free: %d\n");
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388 | print_it(format, filename, print_statfs, &statfsbuf);
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389 | #else
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390 |
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391 | format = (flags & OPT_TERSE
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392 | ? "%s %llx %lu "
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393 | : " File: \"%s\"\n"
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394 | " ID: %-8Lx Namelen: %-7lu ");
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395 | printf(format,
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396 | filename,
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397 | statfsbuf.f_fsid,
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398 | statfsbuf.f_namelen);
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399 |
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400 | if (flags & OPT_TERSE)
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401 | printf("%lx ", (unsigned long int) (statfsbuf.f_type));
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402 | else
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403 | printf("Type: %s\n", human_fstype(statfsbuf.f_type));
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404 |
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405 | format = (flags & OPT_TERSE
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406 | ? "%lu %ld %ld %ld %ld %ld\n"
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407 | : "Block size: %-10lu\n"
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408 | "Blocks: Total: %-10jd Free: %-10jd Available: %jd\n"
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409 | "Inodes: Total: %-10jd Free: %jd\n");
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410 | printf(format,
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411 | (unsigned long int) (statfsbuf.f_bsize),
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412 | (intmax_t) (statfsbuf.f_blocks),
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413 | (intmax_t) (statfsbuf.f_bfree),
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414 | (intmax_t) (statfsbuf.f_bavail),
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415 | (intmax_t) (statfsbuf.f_files),
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416 | (intmax_t) (statfsbuf.f_ffree));
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417 | #endif
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418 |
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419 | return 1;
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420 | }
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421 |
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422 | /* stat the file and print what we find */
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423 | static int do_stat(char const *filename, char const *format)
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424 | {
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425 | struct stat statbuf;
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426 |
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427 | if ((flags & OPT_DEREFERENCE ? stat : lstat) (filename, &statbuf) != 0) {
|
---|
428 | bb_perror_msg("cannot stat '%s'", filename);
|
---|
429 | return 0;
|
---|
430 | }
|
---|
431 |
|
---|
432 | #ifdef CONFIG_FEATURE_STAT_FORMAT
|
---|
433 | if (format == NULL) {
|
---|
434 | if (flags & OPT_TERSE) {
|
---|
435 | format = "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o\n";
|
---|
436 | } else {
|
---|
437 | if (S_ISBLK(statbuf.st_mode) || S_ISCHR(statbuf.st_mode)) {
|
---|
438 | format =
|
---|
439 | " File: \"%N\"\n"
|
---|
440 | " Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
|
---|
441 | "Device: %Dh/%dd\tInode: %-10i Links: %-5h"
|
---|
442 | " Device type: %t,%T\n"
|
---|
443 | "Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n"
|
---|
444 | "Access: %x\n" "Modify: %y\n" "Change: %z\n";
|
---|
445 | } else {
|
---|
446 | format =
|
---|
447 | " File: \"%N\"\n"
|
---|
448 | " Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
|
---|
449 | "Device: %Dh/%dd\tInode: %-10i Links: %h\n"
|
---|
450 | "Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n"
|
---|
451 | "Access: %x\n" "Modify: %y\n" "Change: %z\n";
|
---|
452 | }
|
---|
453 | }
|
---|
454 | }
|
---|
455 | print_it(format, filename, print_stat, &statbuf);
|
---|
456 | #else
|
---|
457 | if (flags & OPT_TERSE) {
|
---|
458 | printf("%s %ju %ju %lx %lu %lu %jx %ju %lu %lx %lx %lu %lu %lu %lu\n",
|
---|
459 | filename,
|
---|
460 | (uintmax_t) (statbuf.st_size),
|
---|
461 | (uintmax_t) statbuf.st_blocks,
|
---|
462 | (unsigned long int) statbuf.st_mode,
|
---|
463 | (unsigned long int) statbuf.st_uid,
|
---|
464 | (unsigned long int) statbuf.st_gid,
|
---|
465 | (uintmax_t) statbuf.st_dev,
|
---|
466 | (uintmax_t) statbuf.st_ino,
|
---|
467 | (unsigned long int) statbuf.st_nlink,
|
---|
468 | (unsigned long int) major(statbuf.st_rdev),
|
---|
469 | (unsigned long int) minor(statbuf.st_rdev),
|
---|
470 | (unsigned long int) statbuf.st_atime,
|
---|
471 | (unsigned long int) statbuf.st_mtime,
|
---|
472 | (unsigned long int) statbuf.st_ctime,
|
---|
473 | (unsigned long int) statbuf.st_blksize
|
---|
474 | );
|
---|
475 | } else {
|
---|
476 | char *linkname = NULL;
|
---|
477 |
|
---|
478 | struct passwd *pw_ent;
|
---|
479 | struct group *gw_ent;
|
---|
480 | setgrent();
|
---|
481 | gw_ent = getgrgid(statbuf.st_gid);
|
---|
482 | setpwent();
|
---|
483 | pw_ent = getpwuid(statbuf.st_uid);
|
---|
484 |
|
---|
485 | if (S_ISLNK(statbuf.st_mode))
|
---|
486 | linkname = xreadlink(filename);
|
---|
487 | if (linkname)
|
---|
488 | printf(" File: \"%s\" -> \"%s\"\n", filename, linkname);
|
---|
489 | else
|
---|
490 | printf(" File: \"%s\"\n", filename);
|
---|
491 |
|
---|
492 | printf(" Size: %-10ju\tBlocks: %-10ju IO Block: %-6lu %s\n"
|
---|
493 | "Device: %jxh/%jud\tInode: %-10ju Links: %-5lu",
|
---|
494 | (uintmax_t) (statbuf.st_size),
|
---|
495 | (uintmax_t) statbuf.st_blocks,
|
---|
496 | (unsigned long int) statbuf.st_blksize,
|
---|
497 | file_type(&statbuf),
|
---|
498 | (uintmax_t) statbuf.st_dev,
|
---|
499 | (uintmax_t) statbuf.st_dev,
|
---|
500 | (uintmax_t) statbuf.st_ino,
|
---|
501 | (unsigned long int) statbuf.st_nlink);
|
---|
502 | if (S_ISBLK(statbuf.st_mode) || S_ISCHR(statbuf.st_mode))
|
---|
503 | printf(" Device type: %lx,%lx\n",
|
---|
504 | (unsigned long int) major(statbuf.st_rdev),
|
---|
505 | (unsigned long int) minor(statbuf.st_rdev));
|
---|
506 | else
|
---|
507 | putchar('\n');
|
---|
508 | printf("Access: (%04lo/%10.10s) Uid: (%5lu/%8s) Gid: (%5lu/%8s)\n"
|
---|
509 | "Access: %s\n" "Modify: %s\n" "Change: %s\n",
|
---|
510 | (unsigned long int) (statbuf.st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)),
|
---|
511 | bb_mode_string(statbuf.st_mode),
|
---|
512 | (unsigned long int) statbuf.st_uid,
|
---|
513 | (pw_ent != 0L) ? pw_ent->pw_name : "UNKNOWN",
|
---|
514 | (unsigned long int) statbuf.st_gid,
|
---|
515 | (gw_ent != 0L) ? gw_ent->gr_name : "UNKNOWN",
|
---|
516 | human_time(statbuf.st_atime),
|
---|
517 | human_time(statbuf.st_mtime),
|
---|
518 | human_time(statbuf.st_ctime));
|
---|
519 | }
|
---|
520 | #endif
|
---|
521 | return 1;
|
---|
522 | }
|
---|
523 |
|
---|
524 | int stat_main(int argc, char **argv)
|
---|
525 | {
|
---|
526 | int i;
|
---|
527 | char *format = NULL;
|
---|
528 | int ok = 1;
|
---|
529 | int (*statfunc)(char const *, char const *) = do_stat;
|
---|
530 |
|
---|
531 | flags = bb_getopt_ulflags(argc, argv, "ftL"
|
---|
532 | USE_FEATURE_STAT_FORMAT("c:", &format)
|
---|
533 | );
|
---|
534 |
|
---|
535 | if (flags & 1) /* -f */
|
---|
536 | statfunc = do_statfs;
|
---|
537 | if (argc == optind) /* files */
|
---|
538 | bb_show_usage();
|
---|
539 |
|
---|
540 | for (i = optind; i < argc; ++i)
|
---|
541 | ok &= statfunc(argv[i], format);
|
---|
542 |
|
---|
543 | return (ok ? EXIT_SUCCESS : EXIT_FAILURE);
|
---|
544 | }
|
---|