[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Copyright (C) 1996 Brian Candler <B.Candler@pobox.com>
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| 4 | *
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[2725] | 5 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[821] | 6 | */
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| 7 |
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[2725] | 8 | /* [date unknown. Perhaps before year 2000]
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[821] | 9 | * To achieve a small memory footprint, this version of 'ls' doesn't do any
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| 10 | * file sorting, and only has the most essential command line switches
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| 11 | * (i.e., the ones I couldn't live without :-) All features which involve
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| 12 | * linking in substantial chunks of libc can be disabled.
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| 13 | *
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| 14 | * Although I don't really want to add new features to this program to
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| 15 | * keep it small, I *am* interested to receive bug fixes and ways to make
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| 16 | * it more portable.
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| 17 | *
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| 18 | * KNOWN BUGS:
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[2725] | 19 | * 1. hidden files can make column width too large
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[821] | 20 | *
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| 21 | * NON-OPTIMAL BEHAVIOUR:
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| 22 | * 1. autowidth reads directories twice
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| 23 | * 2. if you do a short directory listing without filetype characters
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| 24 | * appended, there's no need to stat each one
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| 25 | * PORTABILITY:
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| 26 | * 1. requires lstat (BSD) - how do you do it without?
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[2725] | 27 | *
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| 28 | * [2009-03]
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| 29 | * ls sorts listing now, and supports almost all options.
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[821] | 30 | */
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[3232] | 31 |
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| 32 | //usage:#define ls_trivial_usage
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| 33 | //usage: "[-1AaCxd"
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| 34 | //usage: IF_FEATURE_LS_FOLLOWLINKS("LH")
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| 35 | //usage: IF_FEATURE_LS_RECURSIVE("R")
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| 36 | //usage: IF_FEATURE_LS_FILETYPES("Fp") "lins"
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| 37 | //usage: IF_FEATURE_LS_TIMESTAMPS("e")
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| 38 | //usage: IF_FEATURE_HUMAN_READABLE("h")
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| 39 | //usage: IF_FEATURE_LS_SORTFILES("rSXv")
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| 40 | //usage: IF_FEATURE_LS_TIMESTAMPS("ctu")
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| 41 | //usage: IF_SELINUX("kKZ") "]"
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| 42 | //usage: IF_FEATURE_AUTOWIDTH(" [-w WIDTH]") " [FILE]..."
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| 43 | //usage:#define ls_full_usage "\n\n"
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| 44 | //usage: "List directory contents\n"
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| 45 | //usage: "\n -1 One column output"
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| 46 | //usage: "\n -a Include entries which start with ."
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| 47 | //usage: "\n -A Like -a, but exclude . and .."
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| 48 | //usage: "\n -C List by columns"
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| 49 | //usage: "\n -x List by lines"
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| 50 | //usage: "\n -d List directory entries instead of contents"
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| 51 | //usage: IF_FEATURE_LS_FOLLOWLINKS(
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| 52 | //usage: "\n -L Follow symlinks"
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| 53 | //usage: "\n -H Follow symlinks on command line"
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| 54 | //usage: )
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| 55 | //usage: IF_FEATURE_LS_RECURSIVE(
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| 56 | //usage: "\n -R Recurse"
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| 57 | //usage: )
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| 58 | //usage: IF_FEATURE_LS_FILETYPES(
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| 59 | //usage: "\n -p Append / to dir entries"
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| 60 | //usage: "\n -F Append indicator (one of */=@|) to entries"
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| 61 | //usage: )
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| 62 | //usage: "\n -l Long listing format"
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| 63 | //usage: "\n -i List inode numbers"
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| 64 | //usage: "\n -n List numeric UIDs and GIDs instead of names"
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| 65 | //usage: "\n -s List allocated blocks"
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| 66 | //usage: IF_FEATURE_LS_TIMESTAMPS(
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| 67 | //usage: "\n -e List full date and time"
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| 68 | //usage: )
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| 69 | //usage: IF_FEATURE_HUMAN_READABLE(
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| 70 | //usage: "\n -h List sizes in human readable format (1K 243M 2G)"
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| 71 | //usage: )
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| 72 | //usage: IF_FEATURE_LS_SORTFILES(
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| 73 | //usage: "\n -r Sort in reverse order"
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| 74 | //usage: "\n -S Sort by size"
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| 75 | //usage: "\n -X Sort by extension"
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| 76 | //usage: "\n -v Sort by version"
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| 77 | //usage: )
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| 78 | //usage: IF_FEATURE_LS_TIMESTAMPS(
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| 79 | //usage: "\n -c With -l: sort by ctime"
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| 80 | //usage: "\n -t With -l: sort by mtime"
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| 81 | //usage: "\n -u With -l: sort by atime"
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| 82 | //usage: )
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| 83 | //usage: IF_SELINUX(
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| 84 | //usage: "\n -k List security context"
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| 85 | //usage: "\n -K List security context in long format"
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| 86 | //usage: "\n -Z List security context and permission"
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| 87 | //usage: )
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| 88 | //usage: IF_FEATURE_AUTOWIDTH(
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| 89 | //usage: "\n -w N Assume the terminal is N columns wide"
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| 90 | //usage: )
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| 91 | //usage: IF_FEATURE_LS_COLOR(
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| 92 | //usage: "\n --color[={always,never,auto}] Control coloring"
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| 93 | //usage: )
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| 94 |
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[1765] | 95 | #include "libbb.h"
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[3621] | 96 | #include "common_bufsiz.h"
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[2725] | 97 | #include "unicode.h"
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[1765] | 98 |
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[2725] | 99 |
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[1765] | 100 | /* This is a NOEXEC applet. Be very careful! */
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| 101 |
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| 102 |
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[2725] | 103 | #if ENABLE_FTPD
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| 104 | /* ftpd uses ls, and without timestamps Mozilla won't understand
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| 105 | * ftpd's LIST output.
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| 106 | */
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| 107 | # undef CONFIG_FEATURE_LS_TIMESTAMPS
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| 108 | # undef ENABLE_FEATURE_LS_TIMESTAMPS
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| 109 | # undef IF_FEATURE_LS_TIMESTAMPS
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| 110 | # undef IF_NOT_FEATURE_LS_TIMESTAMPS
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| 111 | # define CONFIG_FEATURE_LS_TIMESTAMPS 1
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| 112 | # define ENABLE_FEATURE_LS_TIMESTAMPS 1
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| 113 | # define IF_FEATURE_LS_TIMESTAMPS(...) __VA_ARGS__
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| 114 | # define IF_NOT_FEATURE_LS_TIMESTAMPS(...)
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| 115 | #endif
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| 116 |
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| 117 |
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[821] | 118 | enum {
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[1765] | 119 | TERMINAL_WIDTH = 80, /* use 79 if terminal has linefold bug */
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[821] | 120 |
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[3232] | 121 | SPLIT_FILE = 0,
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| 122 | SPLIT_DIR = 1,
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| 123 | SPLIT_SUBDIR = 2,
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[821] | 124 |
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[3232] | 125 | /* Bits in G.all_fmt: */
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| 126 |
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[821] | 127 | /* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
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| 128 | /* what file information will be listed */
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[1765] | 129 | LIST_INO = 1 << 0,
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| 130 | LIST_BLOCKS = 1 << 1,
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| 131 | LIST_MODEBITS = 1 << 2,
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| 132 | LIST_NLINKS = 1 << 3,
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| 133 | LIST_ID_NAME = 1 << 4,
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| 134 | LIST_ID_NUMERIC = 1 << 5,
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| 135 | LIST_CONTEXT = 1 << 6,
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| 136 | LIST_SIZE = 1 << 7,
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[3232] | 137 | LIST_DATE_TIME = 1 << 8,
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| 138 | LIST_FULLTIME = 1 << 9,
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| 139 | LIST_SYMLINK = 1 << 10,
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| 140 | LIST_FILETYPE = 1 << 11, /* show / suffix for dirs */
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| 141 | LIST_CLASSIFY = 1 << 12, /* requires LIST_FILETYPE, also show *,|,@,= suffixes */
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| 142 | LIST_MASK = (LIST_CLASSIFY << 1) - 1,
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[821] | 143 |
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| 144 | /* what files will be displayed */
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[3232] | 145 | DISP_DIRNAME = 1 << 13, /* 2 or more items? label directories */
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| 146 | DISP_HIDDEN = 1 << 14, /* show filenames starting with . */
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| 147 | DISP_DOT = 1 << 15, /* show . and .. */
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| 148 | DISP_NOLIST = 1 << 16, /* show directory as itself, not contents */
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| 149 | DISP_RECURSIVE = 1 << 17, /* show directory and everything below it */
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| 150 | DISP_ROWS = 1 << 18, /* print across rows */
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[1765] | 151 | DISP_MASK = ((DISP_ROWS << 1) - 1) & ~(DISP_DIRNAME - 1),
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[821] | 152 |
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[3232] | 153 | /* what is the overall style of the listing */
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| 154 | STYLE_COLUMNAR = 1 << 19, /* many records per line */
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| 155 | STYLE_LONG = 2 << 19, /* one record per line, extended info */
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| 156 | STYLE_SINGLE = 3 << 19, /* one record per line */
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| 157 | STYLE_MASK = STYLE_SINGLE,
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[821] | 158 |
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[1765] | 159 | /* which of the three times will be used */
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[3232] | 160 | TIME_CHANGE = (1 << 21) * ENABLE_FEATURE_LS_TIMESTAMPS,
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| 161 | TIME_ACCESS = (2 << 21) * ENABLE_FEATURE_LS_TIMESTAMPS,
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| 162 | TIME_MASK = (3 << 21) * ENABLE_FEATURE_LS_TIMESTAMPS,
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[821] | 163 |
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[3232] | 164 | /* how will the files be sorted (CONFIG_FEATURE_LS_SORTFILES) */
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| 165 | SORT_REVERSE = 1 << 23,
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[821] | 166 |
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[3232] | 167 | SORT_NAME = 0, /* sort by file name */
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| 168 | SORT_SIZE = 1 << 24, /* sort by file size */
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| 169 | SORT_ATIME = 2 << 24, /* sort by last access time */
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| 170 | SORT_CTIME = 3 << 24, /* sort by last change time */
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| 171 | SORT_MTIME = 4 << 24, /* sort by last modification time */
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| 172 | SORT_VERSION = 5 << 24, /* sort by version */
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| 173 | SORT_EXT = 6 << 24, /* sort by file name extension */
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| 174 | SORT_DIR = 7 << 24, /* sort by file or directory */
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| 175 | SORT_MASK = (7 << 24) * ENABLE_FEATURE_LS_SORTFILES,
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[821] | 176 |
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[1765] | 177 | LIST_LONG = LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
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[3232] | 178 | LIST_DATE_TIME | LIST_SYMLINK,
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[2725] | 179 | };
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[821] | 180 |
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[3232] | 181 | /* -Cadil1 Std options, busybox always supports */
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| 182 | /* -gnsxA Std options, busybox always supports */
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| 183 | /* -Q GNU option, busybox always supports */
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| 184 | /* -k SELinux option, busybox always supports (ignores if !SELinux) */
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| 185 | /* Std has -k which means "show sizes in kbytes" */
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| 186 | /* -LHRctur Std options, busybox optionally supports */
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| 187 | /* -Fp Std options, busybox optionally supports */
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| 188 | /* -SXvhTw GNU options, busybox optionally supports */
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| 189 | /* -T WIDTH Ignored (we don't use tabs on output) */
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| 190 | /* -KZ SELinux mandated options, busybox optionally supports */
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| 191 | /* (coreutils 8.4 has no -K, remove it?) */
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| 192 | /* -e I think we made this one up (looks similar to GNU --full-time) */
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| 193 | /* We already used up all 32 bits, if we need to add more, candidates for removal: */
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| 194 | /* -K, -T, -e (add --full-time instead) */
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[2725] | 195 | static const char ls_options[] ALIGN1 =
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[3232] | 196 | "Cadil1gnsxQAk" /* 13 opts, total 13 */
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[2725] | 197 | IF_FEATURE_LS_TIMESTAMPS("cetu") /* 4, 17 */
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| 198 | IF_FEATURE_LS_SORTFILES("SXrv") /* 4, 21 */
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| 199 | IF_FEATURE_LS_FILETYPES("Fp") /* 2, 23 */
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[3232] | 200 | IF_FEATURE_LS_RECURSIVE("R") /* 1, 24 */
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| 201 | IF_SELINUX("KZ") /* 2, 26 */
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| 202 | IF_FEATURE_LS_FOLLOWLINKS("LH") /* 2, 28 */
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| 203 | IF_FEATURE_HUMAN_READABLE("h") /* 1, 29 */
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| 204 | IF_FEATURE_AUTOWIDTH("T:w:") /* 2, 31 */
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| 205 | /* with --color, we use all 32 bits */;
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[2725] | 206 | enum {
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| 207 | //OPT_C = (1 << 0),
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| 208 | //OPT_a = (1 << 1),
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| 209 | //OPT_d = (1 << 2),
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| 210 | //OPT_i = (1 << 3),
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| 211 | //OPT_l = (1 << 4),
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| 212 | //OPT_1 = (1 << 5),
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| 213 | OPT_g = (1 << 6),
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| 214 | //OPT_n = (1 << 7),
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| 215 | //OPT_s = (1 << 8),
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| 216 | //OPT_x = (1 << 9),
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| 217 | OPT_Q = (1 << 10),
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| 218 | //OPT_A = (1 << 11),
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| 219 | //OPT_k = (1 << 12),
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[821] | 220 |
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[3232] | 221 | OPTBIT_c = 13,
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| 222 | OPTBIT_e,
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| 223 | OPTBIT_t,
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| 224 | OPTBIT_u,
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| 225 | OPTBIT_S = OPTBIT_c + 4 * ENABLE_FEATURE_LS_TIMESTAMPS,
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| 226 | OPTBIT_X, /* 18 */
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| 227 | OPTBIT_r,
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| 228 | OPTBIT_v,
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| 229 | OPTBIT_F = OPTBIT_S + 4 * ENABLE_FEATURE_LS_SORTFILES,
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| 230 | OPTBIT_p, /* 22 */
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| 231 | OPTBIT_R = OPTBIT_F + 2 * ENABLE_FEATURE_LS_FILETYPES,
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| 232 | OPTBIT_K = OPTBIT_R + 1 * ENABLE_FEATURE_LS_RECURSIVE,
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| 233 | OPTBIT_Z, /* 25 */
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| 234 | OPTBIT_L = OPTBIT_K + 2 * ENABLE_SELINUX,
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| 235 | OPTBIT_H, /* 27 */
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| 236 | OPTBIT_h = OPTBIT_L + 2 * ENABLE_FEATURE_LS_FOLLOWLINKS,
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| 237 | OPTBIT_T = OPTBIT_h + 1 * ENABLE_FEATURE_HUMAN_READABLE,
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| 238 | OPTBIT_w, /* 30 */
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| 239 | OPTBIT_color = OPTBIT_T + 2 * ENABLE_FEATURE_AUTOWIDTH,
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| 240 |
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| 241 | OPT_c = (1 << OPTBIT_c) * ENABLE_FEATURE_LS_TIMESTAMPS,
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| 242 | OPT_e = (1 << OPTBIT_e) * ENABLE_FEATURE_LS_TIMESTAMPS,
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| 243 | OPT_t = (1 << OPTBIT_t) * ENABLE_FEATURE_LS_TIMESTAMPS,
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| 244 | OPT_u = (1 << OPTBIT_u) * ENABLE_FEATURE_LS_TIMESTAMPS,
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| 245 | OPT_S = (1 << OPTBIT_S) * ENABLE_FEATURE_LS_SORTFILES,
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| 246 | OPT_X = (1 << OPTBIT_X) * ENABLE_FEATURE_LS_SORTFILES,
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| 247 | OPT_r = (1 << OPTBIT_r) * ENABLE_FEATURE_LS_SORTFILES,
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| 248 | OPT_v = (1 << OPTBIT_v) * ENABLE_FEATURE_LS_SORTFILES,
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| 249 | OPT_F = (1 << OPTBIT_F) * ENABLE_FEATURE_LS_FILETYPES,
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| 250 | OPT_p = (1 << OPTBIT_p) * ENABLE_FEATURE_LS_FILETYPES,
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| 251 | OPT_R = (1 << OPTBIT_R) * ENABLE_FEATURE_LS_RECURSIVE,
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| 252 | OPT_K = (1 << OPTBIT_K) * ENABLE_SELINUX,
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| 253 | OPT_Z = (1 << OPTBIT_Z) * ENABLE_SELINUX,
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| 254 | OPT_L = (1 << OPTBIT_L) * ENABLE_FEATURE_LS_FOLLOWLINKS,
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| 255 | OPT_H = (1 << OPTBIT_H) * ENABLE_FEATURE_LS_FOLLOWLINKS,
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| 256 | OPT_h = (1 << OPTBIT_h) * ENABLE_FEATURE_HUMAN_READABLE,
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| 257 | OPT_T = (1 << OPTBIT_T) * ENABLE_FEATURE_AUTOWIDTH,
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| 258 | OPT_w = (1 << OPTBIT_w) * ENABLE_FEATURE_AUTOWIDTH,
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| 259 | OPT_color = (1 << OPTBIT_color) * ENABLE_FEATURE_LS_COLOR,
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[2725] | 260 | };
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[1765] | 261 |
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[2725] | 262 | /* TODO: simple toggles may be stored as OPT_xxx bits instead */
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[3232] | 263 | static const uint32_t opt_flags[] = {
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| 264 | STYLE_COLUMNAR, /* C */
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| 265 | DISP_HIDDEN | DISP_DOT, /* a */
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| 266 | DISP_NOLIST, /* d */
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| 267 | LIST_INO, /* i */
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| 268 | LIST_LONG | STYLE_LONG, /* l */
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| 269 | STYLE_SINGLE, /* 1 */
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| 270 | LIST_LONG | STYLE_LONG, /* g (don't show owner) - handled via OPT_g. assumes l */
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| 271 | LIST_ID_NUMERIC | LIST_LONG | STYLE_LONG, /* n (assumes l) */
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| 272 | LIST_BLOCKS, /* s */
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| 273 | DISP_ROWS | STYLE_COLUMNAR, /* x */
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| 274 | 0, /* Q (quote filename) - handled via OPT_Q */
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| 275 | DISP_HIDDEN, /* A */
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| 276 | ENABLE_SELINUX * (LIST_CONTEXT|STYLE_SINGLE), /* k (ignored if !SELINUX) */
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[2725] | 277 | #if ENABLE_FEATURE_LS_TIMESTAMPS
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[3232] | 278 | TIME_CHANGE | (ENABLE_FEATURE_LS_SORTFILES * SORT_CTIME), /* c */
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| 279 | LIST_FULLTIME, /* e */
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| 280 | ENABLE_FEATURE_LS_SORTFILES * SORT_MTIME, /* t */
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| 281 | TIME_ACCESS | (ENABLE_FEATURE_LS_SORTFILES * SORT_ATIME), /* u */
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[821] | 282 | #endif
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[2725] | 283 | #if ENABLE_FEATURE_LS_SORTFILES
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[3232] | 284 | SORT_SIZE, /* S */
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| 285 | SORT_EXT, /* X */
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| 286 | SORT_REVERSE, /* r */
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| 287 | SORT_VERSION, /* v */
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[2725] | 288 | #endif
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| 289 | #if ENABLE_FEATURE_LS_FILETYPES
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[3232] | 290 | LIST_FILETYPE | LIST_CLASSIFY, /* F */
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| 291 | LIST_FILETYPE, /* p */
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[2725] | 292 | #endif
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| 293 | #if ENABLE_FEATURE_LS_RECURSIVE
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[3232] | 294 | DISP_RECURSIVE, /* R */
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[2725] | 295 | #endif
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| 296 | #if ENABLE_SELINUX
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[3232] | 297 | LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME|STYLE_SINGLE, /* K */
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| 298 | LIST_MODEBITS|LIST_ID_NAME|LIST_CONTEXT|STYLE_SINGLE, /* Z */
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[2725] | 299 | #endif
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[3232] | 300 | (1U << 31)
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| 301 | /* options after Z are not processed through opt_flags */
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[2725] | 302 | };
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[821] | 303 |
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[2725] | 304 |
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[821] | 305 | /*
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[3232] | 306 | * a directory entry and its stat info
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[821] | 307 | */
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[2725] | 308 | struct dnode {
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[3232] | 309 | const char *name; /* usually basename, but think "ls -l dir/file" */
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| 310 | const char *fullname; /* full name (usable for stat etc) */
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| 311 | struct dnode *dn_next; /* for linked list */
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| 312 | IF_SELINUX(security_context_t sid;)
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[2725] | 313 | smallint fname_allocated;
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[3232] | 314 |
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| 315 | /* Used to avoid re-doing [l]stat at printout stage
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| 316 | * if we already collected needed data in scan stage:
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| 317 | */
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| 318 | mode_t dn_mode_lstat; /* obtained with lstat, or 0 */
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| 319 | mode_t dn_mode_stat; /* obtained with stat, or 0 */
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| 320 |
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| 321 | // struct stat dstat;
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| 322 | // struct stat is huge. We don't need it in full.
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| 323 | // At least we don't need st_dev and st_blksize,
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| 324 | // but there are invisible fields as well
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| 325 | // (such as nanosecond-resolution timespamps)
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| 326 | // and padding, which we also don't want to store.
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| 327 | // We also can pre-parse dev_t dn_rdev (in glibc, it's huge).
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| 328 | // On 32-bit uclibc: dnode size went from 112 to 84 bytes.
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| 329 | //
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| 330 | /* Same names as in struct stat, but with dn_ instead of st_ pfx: */
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| 331 | mode_t dn_mode; /* obtained with lstat OR stat, depending on -L etc */
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| 332 | off_t dn_size;
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| 333 | #if ENABLE_FEATURE_LS_TIMESTAMPS || ENABLE_FEATURE_LS_SORTFILES
|
---|
| 334 | time_t dn_atime;
|
---|
| 335 | time_t dn_mtime;
|
---|
| 336 | time_t dn_ctime;
|
---|
| 337 | #endif
|
---|
| 338 | ino_t dn_ino;
|
---|
| 339 | blkcnt_t dn_blocks;
|
---|
| 340 | nlink_t dn_nlink;
|
---|
| 341 | uid_t dn_uid;
|
---|
| 342 | gid_t dn_gid;
|
---|
| 343 | int dn_rdev_maj;
|
---|
| 344 | int dn_rdev_min;
|
---|
| 345 | // dev_t dn_dev;
|
---|
| 346 | // blksize_t dn_blksize;
|
---|
[821] | 347 | };
|
---|
| 348 |
|
---|
[2725] | 349 | struct globals {
|
---|
| 350 | #if ENABLE_FEATURE_LS_COLOR
|
---|
| 351 | smallint show_color;
|
---|
[3232] | 352 | # define G_show_color (G.show_color)
|
---|
| 353 | #else
|
---|
| 354 | # define G_show_color 0
|
---|
[2725] | 355 | #endif
|
---|
| 356 | smallint exit_code;
|
---|
| 357 | unsigned all_fmt;
|
---|
[1765] | 358 | #if ENABLE_FEATURE_AUTOWIDTH
|
---|
[3232] | 359 | unsigned terminal_width;
|
---|
| 360 | # define G_terminal_width (G.terminal_width)
|
---|
| 361 | #else
|
---|
| 362 | # define G_terminal_width TERMINAL_WIDTH
|
---|
[2725] | 363 | #endif
|
---|
| 364 | #if ENABLE_FEATURE_LS_TIMESTAMPS
|
---|
| 365 | /* Do time() just once. Saves one syscall per file for "ls -l" */
|
---|
| 366 | time_t current_time_t;
|
---|
| 367 | #endif
|
---|
| 368 | } FIX_ALIASING;
|
---|
[3621] | 369 | #define G (*(struct globals*)bb_common_bufsiz1)
|
---|
[2725] | 370 | #define INIT_G() do { \
|
---|
[3621] | 371 | setup_common_bufsiz(); \
|
---|
[2725] | 372 | /* we have to zero it out because of NOEXEC */ \
|
---|
| 373 | memset(&G, 0, sizeof(G)); \
|
---|
[3232] | 374 | IF_FEATURE_AUTOWIDTH(G_terminal_width = TERMINAL_WIDTH;) \
|
---|
| 375 | IF_FEATURE_LS_TIMESTAMPS(time(&G.current_time_t);) \
|
---|
[2725] | 376 | } while (0)
|
---|
[821] | 377 |
|
---|
| 378 |
|
---|
[3232] | 379 | /*** Output code ***/
|
---|
[821] | 380 |
|
---|
| 381 |
|
---|
[2725] | 382 | /* FYI type values: 1:fifo 2:char 4:dir 6:blk 8:file 10:link 12:socket
|
---|
| 383 | * (various wacky OSes: 13:Sun door 14:BSD whiteout 5:XENIX named file
|
---|
| 384 | * 3/7:multiplexed char/block device)
|
---|
| 385 | * and we use 0 for unknown and 15 for executables (see below) */
|
---|
| 386 | #define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
|
---|
[3232] | 387 | /* un fi chr - dir - blk - file - link - sock - - exe */
|
---|
| 388 | #define APPCHAR(mode) ("\0""|""\0""\0""/""\0""\0""\0""\0""\0""@""\0""=""\0""\0""\0" [TYPEINDEX(mode)])
|
---|
[2725] | 389 | /* 036 black foreground 050 black background
|
---|
| 390 | 037 red foreground 051 red background
|
---|
| 391 | 040 green foreground 052 green background
|
---|
| 392 | 041 brown foreground 053 brown background
|
---|
| 393 | 042 blue foreground 054 blue background
|
---|
| 394 | 043 magenta (purple) foreground 055 magenta background
|
---|
| 395 | 044 cyan (light blue) foreground 056 cyan background
|
---|
| 396 | 045 gray foreground 057 white background
|
---|
| 397 | */
|
---|
| 398 | #define COLOR(mode) ( \
|
---|
[3232] | 399 | /*un fi chr - dir - blk - file - link - sock - - exe */ \
|
---|
[2725] | 400 | "\037\043\043\045\042\045\043\043\000\045\044\045\043\045\045\040" \
|
---|
| 401 | [TYPEINDEX(mode)])
|
---|
| 402 | /* Select normal (0) [actually "reset all"] or bold (1)
|
---|
| 403 | * (other attributes are 2:dim 4:underline 5:blink 7:reverse,
|
---|
| 404 | * let's use 7 for "impossible" types, just for fun)
|
---|
| 405 | * Note: coreutils 6.9 uses inverted red for setuid binaries.
|
---|
| 406 | */
|
---|
| 407 | #define ATTR(mode) ( \
|
---|
[3232] | 408 | /*un fi chr - dir - blk - file- link- sock- - exe */ \
|
---|
[2725] | 409 | "\01\00\01\07\01\07\01\07\00\07\01\07\01\07\07\01" \
|
---|
| 410 | [TYPEINDEX(mode)])
|
---|
| 411 |
|
---|
[1765] | 412 | #if ENABLE_FEATURE_LS_COLOR
|
---|
[2725] | 413 | /* mode of zero is interpreted as "unknown" (stat failed) */
|
---|
[821] | 414 | static char fgcolor(mode_t mode)
|
---|
| 415 | {
|
---|
| 416 | if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
|
---|
| 417 | return COLOR(0xF000); /* File is executable ... */
|
---|
| 418 | return COLOR(mode);
|
---|
| 419 | }
|
---|
[2725] | 420 | static char bold(mode_t mode)
|
---|
[821] | 421 | {
|
---|
| 422 | if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
|
---|
| 423 | return ATTR(0xF000); /* File is executable ... */
|
---|
| 424 | return ATTR(mode);
|
---|
| 425 | }
|
---|
| 426 | #endif
|
---|
| 427 |
|
---|
[3232] | 428 | #if ENABLE_FEATURE_LS_FILETYPES
|
---|
[821] | 429 | static char append_char(mode_t mode)
|
---|
| 430 | {
|
---|
[3232] | 431 | if (!(G.all_fmt & LIST_FILETYPE))
|
---|
[821] | 432 | return '\0';
|
---|
| 433 | if (S_ISDIR(mode))
|
---|
| 434 | return '/';
|
---|
[3232] | 435 | if (!(G.all_fmt & LIST_CLASSIFY))
|
---|
[821] | 436 | return '\0';
|
---|
| 437 | if (S_ISREG(mode) && (mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
|
---|
| 438 | return '*';
|
---|
| 439 | return APPCHAR(mode);
|
---|
| 440 | }
|
---|
| 441 | #endif
|
---|
| 442 |
|
---|
[2725] | 443 | static unsigned calc_name_len(const char *name)
|
---|
[821] | 444 | {
|
---|
[2725] | 445 | unsigned len;
|
---|
| 446 | uni_stat_t uni_stat;
|
---|
[821] | 447 |
|
---|
[2725] | 448 | // TODO: quote tab as \t, etc, if -Q
|
---|
| 449 | name = printable_string(&uni_stat, name);
|
---|
[821] | 450 |
|
---|
[2725] | 451 | if (!(option_mask32 & OPT_Q)) {
|
---|
| 452 | return uni_stat.unicode_width;
|
---|
| 453 | }
|
---|
| 454 |
|
---|
| 455 | len = 2 + uni_stat.unicode_width;
|
---|
| 456 | while (*name) {
|
---|
| 457 | if (*name == '"' || *name == '\\') {
|
---|
| 458 | len++;
|
---|
| 459 | }
|
---|
| 460 | name++;
|
---|
| 461 | }
|
---|
| 462 | return len;
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | /* Return the number of used columns.
|
---|
[3232] | 466 | * Note that only STYLE_COLUMNAR uses return value.
|
---|
[2725] | 467 | * STYLE_SINGLE and STYLE_LONG don't care.
|
---|
| 468 | * coreutils 7.2 also supports:
|
---|
| 469 | * ls -b (--escape) = octal escapes (although it doesn't look like working)
|
---|
| 470 | * ls -N (--literal) = not escape at all
|
---|
| 471 | */
|
---|
| 472 | static unsigned print_name(const char *name)
|
---|
| 473 | {
|
---|
| 474 | unsigned len;
|
---|
| 475 | uni_stat_t uni_stat;
|
---|
| 476 |
|
---|
| 477 | // TODO: quote tab as \t, etc, if -Q
|
---|
| 478 | name = printable_string(&uni_stat, name);
|
---|
| 479 |
|
---|
| 480 | if (!(option_mask32 & OPT_Q)) {
|
---|
| 481 | fputs(name, stdout);
|
---|
| 482 | return uni_stat.unicode_width;
|
---|
| 483 | }
|
---|
| 484 |
|
---|
| 485 | len = 2 + uni_stat.unicode_width;
|
---|
| 486 | putchar('"');
|
---|
| 487 | while (*name) {
|
---|
| 488 | if (*name == '"' || *name == '\\') {
|
---|
| 489 | putchar('\\');
|
---|
| 490 | len++;
|
---|
| 491 | }
|
---|
| 492 | putchar(*name);
|
---|
| 493 | name++;
|
---|
| 494 | }
|
---|
| 495 | putchar('"');
|
---|
| 496 | return len;
|
---|
| 497 | }
|
---|
| 498 |
|
---|
| 499 | /* Return the number of used columns.
|
---|
[3232] | 500 | * Note that only STYLE_COLUMNAR uses return value,
|
---|
[2725] | 501 | * STYLE_SINGLE and STYLE_LONG don't care.
|
---|
| 502 | */
|
---|
[3232] | 503 | static NOINLINE unsigned display_single(const struct dnode *dn)
|
---|
[2725] | 504 | {
|
---|
| 505 | unsigned column = 0;
|
---|
[3232] | 506 | char *lpath;
|
---|
[2725] | 507 | #if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
|
---|
[3232] | 508 | struct stat statbuf;
|
---|
[2725] | 509 | char append;
|
---|
| 510 | #endif
|
---|
| 511 |
|
---|
| 512 | #if ENABLE_FEATURE_LS_FILETYPES
|
---|
[3232] | 513 | append = append_char(dn->dn_mode);
|
---|
[2725] | 514 | #endif
|
---|
| 515 |
|
---|
| 516 | /* Do readlink early, so that if it fails, error message
|
---|
| 517 | * does not appear *inside* the "ls -l" line */
|
---|
[3232] | 518 | lpath = NULL;
|
---|
| 519 | if (G.all_fmt & LIST_SYMLINK)
|
---|
| 520 | if (S_ISLNK(dn->dn_mode))
|
---|
[2725] | 521 | lpath = xmalloc_readlink_or_warn(dn->fullname);
|
---|
| 522 |
|
---|
[3232] | 523 | if (G.all_fmt & LIST_INO)
|
---|
| 524 | column += printf("%7llu ", (long long) dn->dn_ino);
|
---|
| 525 | //TODO: -h should affect -s too:
|
---|
| 526 | if (G.all_fmt & LIST_BLOCKS)
|
---|
| 527 | column += printf("%6"OFF_FMT"u ", (off_t) (dn->dn_blocks >> 1));
|
---|
| 528 | if (G.all_fmt & LIST_MODEBITS)
|
---|
| 529 | column += printf("%-10s ", (char *) bb_mode_string(dn->dn_mode));
|
---|
| 530 | if (G.all_fmt & LIST_NLINKS)
|
---|
| 531 | column += printf("%4lu ", (long) dn->dn_nlink);
|
---|
| 532 | if (G.all_fmt & LIST_ID_NUMERIC) {
|
---|
| 533 | if (option_mask32 & OPT_g)
|
---|
| 534 | column += printf("%-8u ", (int) dn->dn_gid);
|
---|
| 535 | else
|
---|
| 536 | column += printf("%-8u %-8u ",
|
---|
| 537 | (int) dn->dn_uid,
|
---|
| 538 | (int) dn->dn_gid);
|
---|
| 539 | }
|
---|
[2725] | 540 | #if ENABLE_FEATURE_LS_USERNAME
|
---|
[3232] | 541 | else if (G.all_fmt & LIST_ID_NAME) {
|
---|
[2725] | 542 | if (option_mask32 & OPT_g) {
|
---|
| 543 | column += printf("%-8.8s ",
|
---|
[3232] | 544 | get_cached_groupname(dn->dn_gid));
|
---|
[2725] | 545 | } else {
|
---|
| 546 | column += printf("%-8.8s %-8.8s ",
|
---|
[3232] | 547 | get_cached_username(dn->dn_uid),
|
---|
| 548 | get_cached_groupname(dn->dn_gid));
|
---|
[2725] | 549 | }
|
---|
| 550 | }
|
---|
| 551 | #endif
|
---|
[3232] | 552 | if (G.all_fmt & LIST_SIZE) {
|
---|
| 553 | if (S_ISBLK(dn->dn_mode) || S_ISCHR(dn->dn_mode)) {
|
---|
[2725] | 554 | column += printf("%4u, %3u ",
|
---|
[3232] | 555 | dn->dn_rdev_maj,
|
---|
| 556 | dn->dn_rdev_min);
|
---|
[2725] | 557 | } else {
|
---|
[3232] | 558 | if (option_mask32 & OPT_h) {
|
---|
[2725] | 559 | column += printf("%"HUMAN_READABLE_MAX_WIDTH_STR"s ",
|
---|
[3232] | 560 | /* print size, show one fractional, use suffixes */
|
---|
| 561 | make_human_readable_str(dn->dn_size, 1, 0)
|
---|
[2725] | 562 | );
|
---|
| 563 | } else {
|
---|
[3232] | 564 | column += printf("%9"OFF_FMT"u ", dn->dn_size);
|
---|
[2725] | 565 | }
|
---|
| 566 | }
|
---|
| 567 | }
|
---|
| 568 | #if ENABLE_FEATURE_LS_TIMESTAMPS
|
---|
[3232] | 569 | if (G.all_fmt & (LIST_FULLTIME|LIST_DATE_TIME)) {
|
---|
[2725] | 570 | char *filetime;
|
---|
[3621] | 571 | const time_t *ttime = &dn->dn_mtime;
|
---|
[3232] | 572 | if (G.all_fmt & TIME_ACCESS)
|
---|
[3621] | 573 | ttime = &dn->dn_atime;
|
---|
[3232] | 574 | if (G.all_fmt & TIME_CHANGE)
|
---|
[3621] | 575 | ttime = &dn->dn_ctime;
|
---|
| 576 | filetime = ctime(ttime);
|
---|
[2725] | 577 | /* filetime's format: "Wed Jun 30 21:49:08 1993\n" */
|
---|
[3232] | 578 | if (G.all_fmt & LIST_FULLTIME) { /* -e */
|
---|
| 579 | /* Note: coreutils 8.4 ls --full-time prints:
|
---|
| 580 | * 2009-07-13 17:49:27.000000000 +0200
|
---|
| 581 | */
|
---|
[2725] | 582 | column += printf("%.24s ", filetime);
|
---|
[3232] | 583 | } else { /* LIST_DATE_TIME */
|
---|
| 584 | /* G.current_time_t ~== time(NULL) */
|
---|
[3621] | 585 | time_t age = G.current_time_t - *ttime;
|
---|
[2725] | 586 | if (age < 3600L * 24 * 365 / 2 && age > -15 * 60) {
|
---|
[3621] | 587 | /* less than 6 months old */
|
---|
| 588 | /* "mmm dd hh:mm " */
|
---|
| 589 | printf("%.12s ", filetime + 4);
|
---|
| 590 | } else {
|
---|
| 591 | /* "mmm dd yyyy " */
|
---|
| 592 | /* "mmm dd yyyyy " after year 9999 :) */
|
---|
| 593 | strchr(filetime + 20, '\n')[0] = ' ';
|
---|
| 594 | printf("%.7s%6s", filetime + 4, filetime + 20);
|
---|
[2725] | 595 | }
|
---|
| 596 | column += 13;
|
---|
| 597 | }
|
---|
| 598 | }
|
---|
| 599 | #endif
|
---|
| 600 | #if ENABLE_SELINUX
|
---|
[3232] | 601 | if (G.all_fmt & LIST_CONTEXT) {
|
---|
[2725] | 602 | column += printf("%-32s ", dn->sid ? dn->sid : "unknown");
|
---|
| 603 | freecon(dn->sid);
|
---|
| 604 | }
|
---|
| 605 | #endif
|
---|
[3232] | 606 |
|
---|
[2725] | 607 | #if ENABLE_FEATURE_LS_COLOR
|
---|
[3232] | 608 | if (G_show_color) {
|
---|
| 609 | mode_t mode = dn->dn_mode_lstat;
|
---|
| 610 | if (!mode)
|
---|
| 611 | if (lstat(dn->fullname, &statbuf) == 0)
|
---|
| 612 | mode = statbuf.st_mode;
|
---|
| 613 | printf("\033[%u;%um", bold(mode), fgcolor(mode));
|
---|
| 614 | }
|
---|
[2725] | 615 | #endif
|
---|
[3232] | 616 | column += print_name(dn->name);
|
---|
| 617 | if (G_show_color) {
|
---|
| 618 | printf("\033[0m");
|
---|
[2725] | 619 | }
|
---|
[3232] | 620 |
|
---|
| 621 | if (lpath) {
|
---|
| 622 | printf(" -> ");
|
---|
[2725] | 623 | #if ENABLE_FEATURE_LS_FILETYPES || ENABLE_FEATURE_LS_COLOR
|
---|
[3232] | 624 | if ((G.all_fmt & LIST_FILETYPE) || G_show_color) {
|
---|
| 625 | mode_t mode = dn->dn_mode_stat;
|
---|
| 626 | if (!mode)
|
---|
| 627 | if (stat(dn->fullname, &statbuf) == 0)
|
---|
| 628 | mode = statbuf.st_mode;
|
---|
| 629 | # if ENABLE_FEATURE_LS_FILETYPES
|
---|
| 630 | append = append_char(mode);
|
---|
| 631 | # endif
|
---|
| 632 | # if ENABLE_FEATURE_LS_COLOR
|
---|
| 633 | if (G_show_color) {
|
---|
| 634 | printf("\033[%u;%um", bold(mode), fgcolor(mode));
|
---|
[2725] | 635 | }
|
---|
[3232] | 636 | # endif
|
---|
| 637 | }
|
---|
[2725] | 638 | #endif
|
---|
[3232] | 639 | column += print_name(lpath) + 4;
|
---|
| 640 | free(lpath);
|
---|
| 641 | if (G_show_color) {
|
---|
| 642 | printf("\033[0m");
|
---|
[2725] | 643 | }
|
---|
| 644 | }
|
---|
| 645 | #if ENABLE_FEATURE_LS_FILETYPES
|
---|
[3232] | 646 | if (G.all_fmt & LIST_FILETYPE) {
|
---|
[2725] | 647 | if (append) {
|
---|
| 648 | putchar(append);
|
---|
| 649 | column++;
|
---|
| 650 | }
|
---|
| 651 | }
|
---|
| 652 | #endif
|
---|
| 653 |
|
---|
| 654 | return column;
|
---|
| 655 | }
|
---|
| 656 |
|
---|
[3232] | 657 | static void display_files(struct dnode **dn, unsigned nfiles)
|
---|
[2725] | 658 | {
|
---|
| 659 | unsigned i, ncols, nrows, row, nc;
|
---|
[3232] | 660 | unsigned column;
|
---|
| 661 | unsigned nexttab;
|
---|
| 662 | unsigned column_width = 0; /* used only by STYLE_COLUMNAR */
|
---|
[2725] | 663 |
|
---|
[3232] | 664 | if (G.all_fmt & STYLE_LONG) { /* STYLE_LONG or STYLE_SINGLE */
|
---|
[821] | 665 | ncols = 1;
|
---|
| 666 | } else {
|
---|
[1765] | 667 | /* find the longest file name, use that as the column width */
|
---|
[2725] | 668 | for (i = 0; dn[i]; i++) {
|
---|
| 669 | int len = calc_name_len(dn[i]->name);
|
---|
[821] | 670 | if (column_width < len)
|
---|
| 671 | column_width = len;
|
---|
| 672 | }
|
---|
[3621] | 673 | column_width += 2 +
|
---|
[3232] | 674 | IF_SELINUX( ((G.all_fmt & LIST_CONTEXT) ? 33 : 0) + )
|
---|
| 675 | ((G.all_fmt & LIST_INO) ? 8 : 0) +
|
---|
| 676 | ((G.all_fmt & LIST_BLOCKS) ? 5 : 0);
|
---|
| 677 | ncols = (unsigned)G_terminal_width / column_width;
|
---|
[821] | 678 | }
|
---|
| 679 |
|
---|
| 680 | if (ncols > 1) {
|
---|
| 681 | nrows = nfiles / ncols;
|
---|
[1765] | 682 | if (nrows * ncols < nfiles)
|
---|
[821] | 683 | nrows++; /* round up fractionals */
|
---|
| 684 | } else {
|
---|
| 685 | nrows = nfiles;
|
---|
| 686 | ncols = 1;
|
---|
| 687 | }
|
---|
| 688 |
|
---|
[3232] | 689 | column = 0;
|
---|
| 690 | nexttab = 0;
|
---|
[821] | 691 | for (row = 0; row < nrows; row++) {
|
---|
| 692 | for (nc = 0; nc < ncols; nc++) {
|
---|
| 693 | /* reach into the array based on the column and row */
|
---|
[3232] | 694 | if (G.all_fmt & DISP_ROWS)
|
---|
[821] | 695 | i = (row * ncols) + nc; /* display across row */
|
---|
[2725] | 696 | else
|
---|
| 697 | i = (nc * nrows) + row; /* display by column */
|
---|
[821] | 698 | if (i < nfiles) {
|
---|
| 699 | if (column > 0) {
|
---|
| 700 | nexttab -= column;
|
---|
[3621] | 701 | printf("%*s", nexttab, "");
|
---|
| 702 | column += nexttab;
|
---|
[1765] | 703 | }
|
---|
[821] | 704 | nexttab = column + column_width;
|
---|
[3232] | 705 | column += display_single(dn[i]);
|
---|
[1765] | 706 | }
|
---|
[821] | 707 | }
|
---|
| 708 | putchar('\n');
|
---|
| 709 | column = 0;
|
---|
| 710 | }
|
---|
| 711 | }
|
---|
| 712 |
|
---|
[1765] | 713 |
|
---|
[3232] | 714 | /*** Dir scanning code ***/
|
---|
| 715 |
|
---|
| 716 | static struct dnode *my_stat(const char *fullname, const char *name, int force_follow)
|
---|
[821] | 717 | {
|
---|
[3232] | 718 | struct stat statbuf;
|
---|
| 719 | struct dnode *cur;
|
---|
| 720 |
|
---|
| 721 | cur = xzalloc(sizeof(*cur));
|
---|
| 722 | cur->fullname = fullname;
|
---|
| 723 | cur->name = name;
|
---|
| 724 |
|
---|
| 725 | if ((option_mask32 & OPT_L) || force_follow) {
|
---|
| 726 | #if ENABLE_SELINUX
|
---|
| 727 | if (is_selinux_enabled()) {
|
---|
| 728 | getfilecon(fullname, &cur->sid);
|
---|
[2725] | 729 | }
|
---|
[3232] | 730 | #endif
|
---|
| 731 | if (stat(fullname, &statbuf)) {
|
---|
| 732 | bb_simple_perror_msg(fullname);
|
---|
| 733 | G.exit_code = EXIT_FAILURE;
|
---|
| 734 | free(cur);
|
---|
| 735 | return NULL;
|
---|
| 736 | }
|
---|
| 737 | cur->dn_mode_stat = statbuf.st_mode;
|
---|
| 738 | } else {
|
---|
| 739 | #if ENABLE_SELINUX
|
---|
| 740 | if (is_selinux_enabled()) {
|
---|
| 741 | lgetfilecon(fullname, &cur->sid);
|
---|
| 742 | }
|
---|
| 743 | #endif
|
---|
| 744 | if (lstat(fullname, &statbuf)) {
|
---|
| 745 | bb_simple_perror_msg(fullname);
|
---|
| 746 | G.exit_code = EXIT_FAILURE;
|
---|
| 747 | free(cur);
|
---|
| 748 | return NULL;
|
---|
| 749 | }
|
---|
| 750 | cur->dn_mode_lstat = statbuf.st_mode;
|
---|
[2725] | 751 | }
|
---|
| 752 |
|
---|
[3232] | 753 | /* cur->dstat = statbuf: */
|
---|
| 754 | cur->dn_mode = statbuf.st_mode ;
|
---|
| 755 | cur->dn_size = statbuf.st_size ;
|
---|
| 756 | #if ENABLE_FEATURE_LS_TIMESTAMPS || ENABLE_FEATURE_LS_SORTFILES
|
---|
| 757 | cur->dn_atime = statbuf.st_atime ;
|
---|
| 758 | cur->dn_mtime = statbuf.st_mtime ;
|
---|
| 759 | cur->dn_ctime = statbuf.st_ctime ;
|
---|
[2725] | 760 | #endif
|
---|
[3232] | 761 | cur->dn_ino = statbuf.st_ino ;
|
---|
| 762 | cur->dn_blocks = statbuf.st_blocks;
|
---|
| 763 | cur->dn_nlink = statbuf.st_nlink ;
|
---|
| 764 | cur->dn_uid = statbuf.st_uid ;
|
---|
| 765 | cur->dn_gid = statbuf.st_gid ;
|
---|
| 766 | cur->dn_rdev_maj = major(statbuf.st_rdev);
|
---|
| 767 | cur->dn_rdev_min = minor(statbuf.st_rdev);
|
---|
[2725] | 768 |
|
---|
[3232] | 769 | return cur;
|
---|
| 770 | }
|
---|
[2725] | 771 |
|
---|
[3232] | 772 | static unsigned count_dirs(struct dnode **dn, int which)
|
---|
| 773 | {
|
---|
| 774 | unsigned dirs, all;
|
---|
[2725] | 775 |
|
---|
[3232] | 776 | if (!dn)
|
---|
| 777 | return 0;
|
---|
| 778 |
|
---|
| 779 | dirs = all = 0;
|
---|
| 780 | for (; *dn; dn++) {
|
---|
| 781 | const char *name;
|
---|
| 782 |
|
---|
| 783 | all++;
|
---|
| 784 | if (!S_ISDIR((*dn)->dn_mode))
|
---|
| 785 | continue;
|
---|
| 786 |
|
---|
| 787 | name = (*dn)->name;
|
---|
| 788 | if (which != SPLIT_SUBDIR /* if not requested to skip . / .. */
|
---|
| 789 | /* or if it's not . or .. */
|
---|
| 790 | || name[0] != '.'
|
---|
| 791 | || (name[1] && (name[1] != '.' || name[2]))
|
---|
| 792 | ) {
|
---|
| 793 | dirs++;
|
---|
| 794 | }
|
---|
| 795 | }
|
---|
| 796 | return which != SPLIT_FILE ? dirs : all - dirs;
|
---|
| 797 | }
|
---|
| 798 |
|
---|
| 799 | /* get memory to hold an array of pointers */
|
---|
| 800 | static struct dnode **dnalloc(unsigned num)
|
---|
[2725] | 801 | {
|
---|
[3232] | 802 | if (num < 1)
|
---|
| 803 | return NULL;
|
---|
[821] | 804 |
|
---|
[3232] | 805 | num++; /* so that we have terminating NULL */
|
---|
| 806 | return xzalloc(num * sizeof(struct dnode *));
|
---|
| 807 | }
|
---|
| 808 |
|
---|
| 809 | #if ENABLE_FEATURE_LS_RECURSIVE
|
---|
| 810 | static void dfree(struct dnode **dnp)
|
---|
| 811 | {
|
---|
| 812 | unsigned i;
|
---|
| 813 |
|
---|
| 814 | if (dnp == NULL)
|
---|
[821] | 815 | return;
|
---|
[3232] | 816 |
|
---|
| 817 | for (i = 0; dnp[i]; i++) {
|
---|
| 818 | struct dnode *cur = dnp[i];
|
---|
| 819 | if (cur->fname_allocated)
|
---|
| 820 | free((char*)cur->fullname);
|
---|
| 821 | free(cur);
|
---|
[2725] | 822 | }
|
---|
[3232] | 823 | free(dnp);
|
---|
| 824 | }
|
---|
| 825 | #else
|
---|
| 826 | #define dfree(...) ((void)0)
|
---|
| 827 | #endif
|
---|
[821] | 828 |
|
---|
[3232] | 829 | /* Returns NULL-terminated malloced vector of pointers (or NULL) */
|
---|
| 830 | static struct dnode **splitdnarray(struct dnode **dn, int which)
|
---|
| 831 | {
|
---|
| 832 | unsigned dncnt, d;
|
---|
| 833 | struct dnode **dnp;
|
---|
| 834 |
|
---|
| 835 | if (dn == NULL)
|
---|
| 836 | return NULL;
|
---|
| 837 |
|
---|
| 838 | /* count how many dirs or files there are */
|
---|
| 839 | dncnt = count_dirs(dn, which);
|
---|
| 840 |
|
---|
| 841 | /* allocate a file array and a dir array */
|
---|
| 842 | dnp = dnalloc(dncnt);
|
---|
| 843 |
|
---|
| 844 | /* copy the entrys into the file or dir array */
|
---|
| 845 | for (d = 0; *dn; dn++) {
|
---|
| 846 | if (S_ISDIR((*dn)->dn_mode)) {
|
---|
| 847 | const char *name;
|
---|
| 848 |
|
---|
| 849 | if (which == SPLIT_FILE)
|
---|
| 850 | continue;
|
---|
| 851 |
|
---|
| 852 | name = (*dn)->name;
|
---|
| 853 | if ((which & SPLIT_DIR) /* any dir... */
|
---|
| 854 | /* ... or not . or .. */
|
---|
| 855 | || name[0] != '.'
|
---|
| 856 | || (name[1] && (name[1] != '.' || name[2]))
|
---|
[2725] | 857 | ) {
|
---|
[3232] | 858 | dnp[d++] = *dn;
|
---|
[821] | 859 | }
|
---|
[3232] | 860 | } else
|
---|
| 861 | if (which == SPLIT_FILE) {
|
---|
| 862 | dnp[d++] = *dn;
|
---|
[821] | 863 | }
|
---|
| 864 | }
|
---|
[3232] | 865 | return dnp;
|
---|
[821] | 866 | }
|
---|
| 867 |
|
---|
[3232] | 868 | #if ENABLE_FEATURE_LS_SORTFILES
|
---|
| 869 | static int sortcmp(const void *a, const void *b)
|
---|
| 870 | {
|
---|
| 871 | struct dnode *d1 = *(struct dnode **)a;
|
---|
| 872 | struct dnode *d2 = *(struct dnode **)b;
|
---|
| 873 | unsigned sort_opts = G.all_fmt & SORT_MASK;
|
---|
| 874 | off_t dif;
|
---|
[1765] | 875 |
|
---|
[3232] | 876 | dif = 0; /* assume SORT_NAME */
|
---|
| 877 | // TODO: use pre-initialized function pointer
|
---|
| 878 | // instead of branch forest
|
---|
| 879 | if (sort_opts == SORT_SIZE) {
|
---|
| 880 | dif = (d2->dn_size - d1->dn_size);
|
---|
| 881 | } else
|
---|
| 882 | if (sort_opts == SORT_ATIME) {
|
---|
| 883 | dif = (d2->dn_atime - d1->dn_atime);
|
---|
| 884 | } else
|
---|
| 885 | if (sort_opts == SORT_CTIME) {
|
---|
| 886 | dif = (d2->dn_ctime - d1->dn_ctime);
|
---|
| 887 | } else
|
---|
| 888 | if (sort_opts == SORT_MTIME) {
|
---|
| 889 | dif = (d2->dn_mtime - d1->dn_mtime);
|
---|
| 890 | } else
|
---|
| 891 | if (sort_opts == SORT_DIR) {
|
---|
| 892 | dif = S_ISDIR(d2->dn_mode) - S_ISDIR(d1->dn_mode);
|
---|
| 893 | } else
|
---|
| 894 | #if defined(HAVE_STRVERSCMP) && HAVE_STRVERSCMP == 1
|
---|
| 895 | if (sort_opts == SORT_VERSION) {
|
---|
| 896 | dif = strverscmp(d1->name, d2->name);
|
---|
| 897 | } else
|
---|
| 898 | #endif
|
---|
| 899 | if (sort_opts == SORT_EXT) {
|
---|
| 900 | dif = strcmp(strchrnul(d1->name, '.'), strchrnul(d2->name, '.'));
|
---|
| 901 | }
|
---|
| 902 | if (dif == 0) {
|
---|
| 903 | /* sort by name, use as tie breaker for other sorts */
|
---|
| 904 | if (ENABLE_LOCALE_SUPPORT)
|
---|
| 905 | dif = strcoll(d1->name, d2->name);
|
---|
| 906 | else
|
---|
| 907 | dif = strcmp(d1->name, d2->name);
|
---|
| 908 | }
|
---|
| 909 |
|
---|
| 910 | /* Make dif fit into an int */
|
---|
| 911 | if (sizeof(dif) > sizeof(int)) {
|
---|
| 912 | enum { BITS_TO_SHIFT = 8 * (sizeof(dif) - sizeof(int)) };
|
---|
| 913 | /* shift leaving only "int" worth of bits */
|
---|
| 914 | if (dif != 0) {
|
---|
| 915 | dif = 1 | (int)((uoff_t)dif >> BITS_TO_SHIFT);
|
---|
| 916 | }
|
---|
| 917 | }
|
---|
| 918 |
|
---|
| 919 | return (G.all_fmt & SORT_REVERSE) ? -(int)dif : (int)dif;
|
---|
| 920 | }
|
---|
| 921 |
|
---|
| 922 | static void dnsort(struct dnode **dn, int size)
|
---|
| 923 | {
|
---|
| 924 | qsort(dn, size, sizeof(*dn), sortcmp);
|
---|
| 925 | }
|
---|
| 926 |
|
---|
| 927 | static void sort_and_display_files(struct dnode **dn, unsigned nfiles)
|
---|
| 928 | {
|
---|
| 929 | dnsort(dn, nfiles);
|
---|
| 930 | display_files(dn, nfiles);
|
---|
| 931 | }
|
---|
| 932 | #else
|
---|
| 933 | # define dnsort(dn, size) ((void)0)
|
---|
| 934 | # define sort_and_display_files(dn, nfiles) display_files(dn, nfiles)
|
---|
| 935 | #endif
|
---|
| 936 |
|
---|
[2725] | 937 | /* Returns NULL-terminated malloced vector of pointers (or NULL) */
|
---|
[3232] | 938 | static struct dnode **scan_one_dir(const char *path, unsigned *nfiles_p)
|
---|
[821] | 939 | {
|
---|
| 940 | struct dnode *dn, *cur, **dnp;
|
---|
| 941 | struct dirent *entry;
|
---|
| 942 | DIR *dir;
|
---|
[2725] | 943 | unsigned i, nfiles;
|
---|
[821] | 944 |
|
---|
[2725] | 945 | *nfiles_p = 0;
|
---|
[1765] | 946 | dir = warn_opendir(path);
|
---|
[821] | 947 | if (dir == NULL) {
|
---|
[3232] | 948 | G.exit_code = EXIT_FAILURE;
|
---|
[1765] | 949 | return NULL; /* could not open the dir */
|
---|
[821] | 950 | }
|
---|
[2725] | 951 | dn = NULL;
|
---|
| 952 | nfiles = 0;
|
---|
[821] | 953 | while ((entry = readdir(dir)) != NULL) {
|
---|
| 954 | char *fullname;
|
---|
| 955 |
|
---|
| 956 | /* are we going to list the file- it may be . or .. or a hidden file */
|
---|
| 957 | if (entry->d_name[0] == '.') {
|
---|
[1765] | 958 | if ((!entry->d_name[1] || (entry->d_name[1] == '.' && !entry->d_name[2]))
|
---|
[3232] | 959 | && !(G.all_fmt & DISP_DOT)
|
---|
[1765] | 960 | ) {
|
---|
| 961 | continue;
|
---|
| 962 | }
|
---|
[3232] | 963 | if (!(G.all_fmt & DISP_HIDDEN))
|
---|
[1765] | 964 | continue;
|
---|
[821] | 965 | }
|
---|
| 966 | fullname = concat_path_file(path, entry->d_name);
|
---|
[1765] | 967 | cur = my_stat(fullname, bb_basename(fullname), 0);
|
---|
| 968 | if (!cur) {
|
---|
| 969 | free(fullname);
|
---|
[821] | 970 | continue;
|
---|
[1765] | 971 | }
|
---|
[2725] | 972 | cur->fname_allocated = 1;
|
---|
[3232] | 973 | cur->dn_next = dn;
|
---|
[821] | 974 | dn = cur;
|
---|
| 975 | nfiles++;
|
---|
| 976 | }
|
---|
| 977 | closedir(dir);
|
---|
| 978 |
|
---|
[2725] | 979 | if (dn == NULL)
|
---|
| 980 | return NULL;
|
---|
| 981 |
|
---|
[821] | 982 | /* now that we know how many files there are
|
---|
[1765] | 983 | * allocate memory for an array to hold dnode pointers
|
---|
[821] | 984 | */
|
---|
[2725] | 985 | *nfiles_p = nfiles;
|
---|
[821] | 986 | dnp = dnalloc(nfiles);
|
---|
[2725] | 987 | for (i = 0; /* i < nfiles - detected via !dn below */; i++) {
|
---|
| 988 | dnp[i] = dn; /* save pointer to node in array */
|
---|
[3232] | 989 | dn = dn->dn_next;
|
---|
[2725] | 990 | if (!dn)
|
---|
| 991 | break;
|
---|
[821] | 992 | }
|
---|
| 993 |
|
---|
[1765] | 994 | return dnp;
|
---|
[821] | 995 | }
|
---|
| 996 |
|
---|
[3232] | 997 | #if ENABLE_DESKTOP
|
---|
| 998 | /* http://www.opengroup.org/onlinepubs/9699919799/utilities/ls.html
|
---|
| 999 | * If any of the -l, -n, -s options is specified, each list
|
---|
| 1000 | * of files within the directory shall be preceded by a
|
---|
| 1001 | * status line indicating the number of file system blocks
|
---|
| 1002 | * occupied by files in the directory in 512-byte units if
|
---|
| 1003 | * the -k option is not specified, or 1024-byte units if the
|
---|
| 1004 | * -k option is specified, rounded up to the next integral
|
---|
| 1005 | * number of units.
|
---|
| 1006 | */
|
---|
| 1007 | /* by Jorgen Overgaard (jorgen AT antistaten.se) */
|
---|
| 1008 | static off_t calculate_blocks(struct dnode **dn)
|
---|
| 1009 | {
|
---|
| 1010 | uoff_t blocks = 1;
|
---|
| 1011 | if (dn) {
|
---|
| 1012 | while (*dn) {
|
---|
| 1013 | /* st_blocks is in 512 byte blocks */
|
---|
| 1014 | blocks += (*dn)->dn_blocks;
|
---|
| 1015 | dn++;
|
---|
| 1016 | }
|
---|
| 1017 | }
|
---|
[1765] | 1018 |
|
---|
[3232] | 1019 | /* Even though standard says use 512 byte blocks, coreutils use 1k */
|
---|
| 1020 | /* Actually, we round up by calculating (blocks + 1) / 2,
|
---|
| 1021 | * "+ 1" was done when we initialized blocks to 1 */
|
---|
| 1022 | return blocks >> 1;
|
---|
| 1023 | }
|
---|
| 1024 | #endif
|
---|
| 1025 |
|
---|
| 1026 | static void scan_and_display_dirs_recur(struct dnode **dn, int first)
|
---|
| 1027 | {
|
---|
| 1028 | unsigned nfiles;
|
---|
| 1029 | struct dnode **subdnp;
|
---|
| 1030 |
|
---|
| 1031 | for (; *dn; dn++) {
|
---|
| 1032 | if (G.all_fmt & (DISP_DIRNAME | DISP_RECURSIVE)) {
|
---|
| 1033 | if (!first)
|
---|
| 1034 | bb_putchar('\n');
|
---|
| 1035 | first = 0;
|
---|
| 1036 | printf("%s:\n", (*dn)->fullname);
|
---|
| 1037 | }
|
---|
| 1038 | subdnp = scan_one_dir((*dn)->fullname, &nfiles);
|
---|
| 1039 | #if ENABLE_DESKTOP
|
---|
[3621] | 1040 | if ((G.all_fmt & STYLE_MASK) == STYLE_LONG || (G.all_fmt & LIST_BLOCKS))
|
---|
[3232] | 1041 | printf("total %"OFF_FMT"u\n", calculate_blocks(subdnp));
|
---|
| 1042 | #endif
|
---|
| 1043 | if (nfiles > 0) {
|
---|
| 1044 | /* list all files at this level */
|
---|
| 1045 | sort_and_display_files(subdnp, nfiles);
|
---|
| 1046 |
|
---|
| 1047 | if (ENABLE_FEATURE_LS_RECURSIVE
|
---|
| 1048 | && (G.all_fmt & DISP_RECURSIVE)
|
---|
| 1049 | ) {
|
---|
| 1050 | struct dnode **dnd;
|
---|
| 1051 | unsigned dndirs;
|
---|
| 1052 | /* recursive - list the sub-dirs */
|
---|
| 1053 | dnd = splitdnarray(subdnp, SPLIT_SUBDIR);
|
---|
| 1054 | dndirs = count_dirs(subdnp, SPLIT_SUBDIR);
|
---|
| 1055 | if (dndirs > 0) {
|
---|
| 1056 | dnsort(dnd, dndirs);
|
---|
| 1057 | scan_and_display_dirs_recur(dnd, 0);
|
---|
| 1058 | /* free the array of dnode pointers to the dirs */
|
---|
| 1059 | free(dnd);
|
---|
| 1060 | }
|
---|
| 1061 | }
|
---|
| 1062 | /* free the dnodes and the fullname mem */
|
---|
| 1063 | dfree(subdnp);
|
---|
| 1064 | }
|
---|
| 1065 | }
|
---|
| 1066 | }
|
---|
| 1067 |
|
---|
| 1068 |
|
---|
[2725] | 1069 | int ls_main(int argc UNUSED_PARAM, char **argv)
|
---|
[821] | 1070 | {
|
---|
| 1071 | struct dnode **dnd;
|
---|
| 1072 | struct dnode **dnf;
|
---|
| 1073 | struct dnode **dnp;
|
---|
| 1074 | struct dnode *dn;
|
---|
| 1075 | struct dnode *cur;
|
---|
[1765] | 1076 | unsigned opt;
|
---|
[2725] | 1077 | unsigned nfiles;
|
---|
| 1078 | unsigned dnfiles;
|
---|
| 1079 | unsigned dndirs;
|
---|
| 1080 | unsigned i;
|
---|
| 1081 | #if ENABLE_FEATURE_LS_COLOR
|
---|
| 1082 | /* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
|
---|
| 1083 | /* coreutils 6.10:
|
---|
| 1084 | * # ls --color=BOGUS
|
---|
| 1085 | * ls: invalid argument 'BOGUS' for '--color'
|
---|
| 1086 | * Valid arguments are:
|
---|
| 1087 | * 'always', 'yes', 'force'
|
---|
| 1088 | * 'never', 'no', 'none'
|
---|
| 1089 | * 'auto', 'tty', 'if-tty'
|
---|
| 1090 | * (and substrings: "--color=alwa" work too)
|
---|
| 1091 | */
|
---|
| 1092 | static const char ls_longopts[] ALIGN1 =
|
---|
| 1093 | "color\0" Optional_argument "\xff"; /* no short equivalent */
|
---|
| 1094 | static const char color_str[] ALIGN1 =
|
---|
| 1095 | "always\0""yes\0""force\0"
|
---|
| 1096 | "auto\0""tty\0""if-tty\0";
|
---|
| 1097 | /* need to initialize since --color has _an optional_ argument */
|
---|
| 1098 | const char *color_opt = color_str; /* "always" */
|
---|
[821] | 1099 | #endif
|
---|
| 1100 |
|
---|
[2725] | 1101 | INIT_G();
|
---|
| 1102 |
|
---|
| 1103 | init_unicode();
|
---|
| 1104 |
|
---|
[3232] | 1105 | if (ENABLE_FEATURE_LS_SORTFILES)
|
---|
| 1106 | G.all_fmt = SORT_NAME;
|
---|
[821] | 1107 |
|
---|
[1765] | 1108 | #if ENABLE_FEATURE_AUTOWIDTH
|
---|
[2725] | 1109 | /* obtain the terminal width */
|
---|
[3621] | 1110 | G_terminal_width = get_terminal_width(STDIN_FILENO);
|
---|
[2725] | 1111 | /* go one less... */
|
---|
[3232] | 1112 | G_terminal_width--;
|
---|
[821] | 1113 | #endif
|
---|
| 1114 |
|
---|
| 1115 | /* process options */
|
---|
[2725] | 1116 | IF_FEATURE_LS_COLOR(applet_long_options = ls_longopts;)
|
---|
[3232] | 1117 | opt_complementary =
|
---|
| 1118 | /* -e implies -l */
|
---|
| 1119 | IF_FEATURE_LS_TIMESTAMPS("el")
|
---|
| 1120 | /* http://pubs.opengroup.org/onlinepubs/9699919799/utilities/ls.html:
|
---|
| 1121 | * in some pairs of opts, only last one takes effect:
|
---|
| 1122 | */
|
---|
| 1123 | IF_FEATURE_LS_TIMESTAMPS(IF_FEATURE_LS_SORTFILES(":t-S:S-t")) /* time/size */
|
---|
| 1124 | // ":m-l:l-m" - we don't have -m
|
---|
| 1125 | IF_FEATURE_LS_FOLLOWLINKS(":H-L:L-H")
|
---|
| 1126 | ":C-xl:x-Cl:l-xC" /* bycols/bylines/long */
|
---|
| 1127 | ":C-1:1-C" /* bycols/oneline */
|
---|
| 1128 | ":x-1:1-x" /* bylines/oneline (not in SuS, but in GNU coreutils 8.4) */
|
---|
| 1129 | IF_FEATURE_LS_TIMESTAMPS(":c-u:u-c") /* mtime/atime */
|
---|
| 1130 | /* -w NUM: */
|
---|
| 1131 | IF_FEATURE_AUTOWIDTH(":w+");
|
---|
| 1132 | opt = getopt32(argv, ls_options
|
---|
| 1133 | IF_FEATURE_AUTOWIDTH(, NULL, &G_terminal_width)
|
---|
| 1134 | IF_FEATURE_LS_COLOR(, &color_opt)
|
---|
| 1135 | );
|
---|
| 1136 | for (i = 0; opt_flags[i] != (1U << 31); i++) {
|
---|
[821] | 1137 | if (opt & (1 << i)) {
|
---|
[3232] | 1138 | uint32_t flags = opt_flags[i];
|
---|
[821] | 1139 |
|
---|
[3232] | 1140 | if (flags & STYLE_MASK)
|
---|
| 1141 | G.all_fmt &= ~STYLE_MASK;
|
---|
| 1142 | if (flags & SORT_MASK)
|
---|
| 1143 | G.all_fmt &= ~SORT_MASK;
|
---|
[1765] | 1144 | if (flags & TIME_MASK)
|
---|
[3232] | 1145 | G.all_fmt &= ~TIME_MASK;
|
---|
| 1146 |
|
---|
| 1147 | G.all_fmt |= flags;
|
---|
[821] | 1148 | }
|
---|
| 1149 | }
|
---|
| 1150 |
|
---|
[1765] | 1151 | #if ENABLE_FEATURE_LS_COLOR
|
---|
[3232] | 1152 | /* set G_show_color = 1/0 */
|
---|
[1765] | 1153 | if (ENABLE_FEATURE_LS_COLOR_IS_DEFAULT && isatty(STDOUT_FILENO)) {
|
---|
| 1154 | char *p = getenv("LS_COLORS");
|
---|
| 1155 | /* LS_COLORS is unset, or (not empty && not "none") ? */
|
---|
[2725] | 1156 | if (!p || (p[0] && strcmp(p, "none") != 0))
|
---|
[3232] | 1157 | G_show_color = 1;
|
---|
[821] | 1158 | }
|
---|
[2725] | 1159 | if (opt & OPT_color) {
|
---|
| 1160 | if (color_opt[0] == 'n')
|
---|
[3232] | 1161 | G_show_color = 0;
|
---|
[2725] | 1162 | else switch (index_in_substrings(color_str, color_opt)) {
|
---|
| 1163 | case 3:
|
---|
| 1164 | case 4:
|
---|
| 1165 | case 5:
|
---|
| 1166 | if (isatty(STDOUT_FILENO)) {
|
---|
| 1167 | case 0:
|
---|
| 1168 | case 1:
|
---|
| 1169 | case 2:
|
---|
[3232] | 1170 | G_show_color = 1;
|
---|
[2725] | 1171 | }
|
---|
| 1172 | }
|
---|
[1765] | 1173 | }
|
---|
[821] | 1174 | #endif
|
---|
| 1175 |
|
---|
| 1176 | /* sort out which command line options take precedence */
|
---|
[3232] | 1177 | if (ENABLE_FEATURE_LS_RECURSIVE && (G.all_fmt & DISP_NOLIST))
|
---|
| 1178 | G.all_fmt &= ~DISP_RECURSIVE; /* no recurse if listing only dir */
|
---|
[821] | 1179 | if (ENABLE_FEATURE_LS_TIMESTAMPS && ENABLE_FEATURE_LS_SORTFILES) {
|
---|
[3232] | 1180 | if (G.all_fmt & TIME_CHANGE)
|
---|
| 1181 | G.all_fmt = (G.all_fmt & ~SORT_MASK) | SORT_CTIME;
|
---|
| 1182 | if (G.all_fmt & TIME_ACCESS)
|
---|
| 1183 | G.all_fmt = (G.all_fmt & ~SORT_MASK) | SORT_ATIME;
|
---|
[821] | 1184 | }
|
---|
[3232] | 1185 | if ((G.all_fmt & STYLE_MASK) != STYLE_LONG) /* not -l? */
|
---|
| 1186 | G.all_fmt &= ~(LIST_ID_NUMERIC|LIST_ID_NAME|LIST_FULLTIME);
|
---|
[821] | 1187 |
|
---|
[3232] | 1188 | /* choose a display format if one was not already specified by an option */
|
---|
| 1189 | if (!(G.all_fmt & STYLE_MASK))
|
---|
| 1190 | G.all_fmt |= (isatty(STDOUT_FILENO) ? STYLE_COLUMNAR : STYLE_SINGLE);
|
---|
[821] | 1191 |
|
---|
[2725] | 1192 | argv += optind;
|
---|
| 1193 | if (!argv[0])
|
---|
| 1194 | *--argv = (char*)".";
|
---|
[821] | 1195 |
|
---|
[2725] | 1196 | if (argv[1])
|
---|
[3232] | 1197 | G.all_fmt |= DISP_DIRNAME; /* 2 or more items? label directories */
|
---|
[821] | 1198 |
|
---|
[1765] | 1199 | /* stuff the command line file names into a dnode array */
|
---|
[821] | 1200 | dn = NULL;
|
---|
[2725] | 1201 | nfiles = 0;
|
---|
| 1202 | do {
|
---|
[3232] | 1203 | cur = my_stat(*argv, *argv,
|
---|
| 1204 | /* follow links on command line unless -l, -s or -F: */
|
---|
| 1205 | !((G.all_fmt & STYLE_MASK) == STYLE_LONG
|
---|
| 1206 | || (G.all_fmt & LIST_BLOCKS)
|
---|
| 1207 | || (option_mask32 & OPT_F)
|
---|
| 1208 | )
|
---|
| 1209 | /* ... or if -H: */
|
---|
| 1210 | || (option_mask32 & OPT_H)
|
---|
| 1211 | /* ... or if -L, but my_stat always follows links if -L */
|
---|
| 1212 | );
|
---|
[2725] | 1213 | argv++;
|
---|
[821] | 1214 | if (!cur)
|
---|
| 1215 | continue;
|
---|
[3232] | 1216 | /*cur->fname_allocated = 0; - already is */
|
---|
| 1217 | cur->dn_next = dn;
|
---|
[821] | 1218 | dn = cur;
|
---|
| 1219 | nfiles++;
|
---|
[2725] | 1220 | } while (*argv);
|
---|
[821] | 1221 |
|
---|
[2725] | 1222 | /* nfiles _may_ be 0 here - try "ls doesnt_exist" */
|
---|
| 1223 | if (nfiles == 0)
|
---|
[3232] | 1224 | return G.exit_code;
|
---|
[2725] | 1225 |
|
---|
[821] | 1226 | /* now that we know how many files there are
|
---|
[1765] | 1227 | * allocate memory for an array to hold dnode pointers
|
---|
[821] | 1228 | */
|
---|
| 1229 | dnp = dnalloc(nfiles);
|
---|
[2725] | 1230 | for (i = 0; /* i < nfiles - detected via !dn below */; i++) {
|
---|
| 1231 | dnp[i] = dn; /* save pointer to node in array */
|
---|
[3232] | 1232 | dn = dn->dn_next;
|
---|
[2725] | 1233 | if (!dn)
|
---|
| 1234 | break;
|
---|
[821] | 1235 | }
|
---|
| 1236 |
|
---|
[3232] | 1237 | if (G.all_fmt & DISP_NOLIST) {
|
---|
| 1238 | sort_and_display_files(dnp, nfiles);
|
---|
[821] | 1239 | } else {
|
---|
[2725] | 1240 | dnd = splitdnarray(dnp, SPLIT_DIR);
|
---|
| 1241 | dnf = splitdnarray(dnp, SPLIT_FILE);
|
---|
| 1242 | dndirs = count_dirs(dnp, SPLIT_DIR);
|
---|
[821] | 1243 | dnfiles = nfiles - dndirs;
|
---|
| 1244 | if (dnfiles > 0) {
|
---|
[3232] | 1245 | sort_and_display_files(dnf, dnfiles);
|
---|
[821] | 1246 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 1247 | free(dnf);
|
---|
| 1248 | }
|
---|
| 1249 | if (dndirs > 0) {
|
---|
[1765] | 1250 | dnsort(dnd, dndirs);
|
---|
[3232] | 1251 | scan_and_display_dirs_recur(dnd, dnfiles == 0);
|
---|
[821] | 1252 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
| 1253 | free(dnd);
|
---|
| 1254 | }
|
---|
| 1255 | }
|
---|
[3232] | 1256 |
|
---|
[821] | 1257 | if (ENABLE_FEATURE_CLEAN_UP)
|
---|
[2725] | 1258 | dfree(dnp);
|
---|
[3232] | 1259 | return G.exit_code;
|
---|
[821] | 1260 | }
|
---|