[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Mini find implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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| 6 | *
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| 7 | * Reworked by David Douthitt <n9ubh@callsign.net> and
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| 8 | * Matt Kraai <kraai@alumni.carnegiemellon.edu>.
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| 9 | *
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[2725] | 10 | * Licensed under GPLv2, see file LICENSE in this source tree.
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[821] | 11 | */
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| 12 |
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[1765] | 13 | /* findutils-4.1.20:
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| 14 | *
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| 15 | * # find file.txt -exec 'echo {}' '{} {}' ';'
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| 16 | * find: echo file.txt: No such file or directory
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| 17 | * # find file.txt -exec 'echo' '{} {}' '; '
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| 18 | * find: missing argument to `-exec'
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| 19 | * # find file.txt -exec 'echo {}' '{} {}' ';' junk
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| 20 | * find: paths must precede expression
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| 21 | * # find file.txt -exec 'echo {}' '{} {}' ';' junk ';'
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| 22 | * find: paths must precede expression
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| 23 | * # find file.txt -exec 'echo' '{} {}' ';'
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| 24 | * file.txt file.txt
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| 25 | * (strace: execve("/bin/echo", ["echo", "file.txt file.txt"], [ 30 vars ]))
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| 26 | * # find file.txt -exec 'echo' '{} {}' ';' -print -exec pwd ';'
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| 27 | * file.txt file.txt
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| 28 | * file.txt
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| 29 | * /tmp
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| 30 | * # find -name '*.c' -o -name '*.h'
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| 31 | * [shows files, *.c and *.h intermixed]
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| 32 | * # find file.txt -name '*f*' -o -name '*t*'
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| 33 | * file.txt
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| 34 | * # find file.txt -name '*z*' -o -name '*t*'
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| 35 | * file.txt
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| 36 | * # find file.txt -name '*f*' -o -name '*z*'
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| 37 | * file.txt
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| 38 | *
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| 39 | * # find t z -name '*t*' -print -o -name '*z*'
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| 40 | * t
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| 41 | * # find t z t z -name '*t*' -o -name '*z*' -print
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| 42 | * z
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| 43 | * z
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| 44 | * # find t z t z '(' -name '*t*' -o -name '*z*' ')' -o -print
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| 45 | * (no output)
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| 46 | */
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[821] | 47 |
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[1765] | 48 | /* Testing script
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| 49 | * ./busybox find "$@" | tee /tmp/bb_find
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| 50 | * echo ==================
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| 51 | * /path/to/gnu/find "$@" | tee /tmp/std_find
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| 52 | * echo ==================
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| 53 | * diff -u /tmp/std_find /tmp/bb_find && echo Identical
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| 54 | */
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[821] | 55 |
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[2725] | 56 | //config:config FIND
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| 57 | //config: bool "find"
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| 58 | //config: default y
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| 59 | //config: help
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| 60 | //config: find is used to search your system to find specified files.
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| 61 | //config:
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| 62 | //config:config FEATURE_FIND_PRINT0
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| 63 | //config: bool "Enable -print0: NUL-terminated output"
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| 64 | //config: default y
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| 65 | //config: depends on FIND
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| 66 | //config: help
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| 67 | //config: Causes output names to be separated by a NUL character
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| 68 | //config: rather than a newline. This allows names that contain
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| 69 | //config: newlines and other whitespace to be more easily
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| 70 | //config: interpreted by other programs.
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| 71 | //config:
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| 72 | //config:config FEATURE_FIND_MTIME
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| 73 | //config: bool "Enable -mtime: modified time matching"
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| 74 | //config: default y
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| 75 | //config: depends on FIND
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| 76 | //config: help
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| 77 | //config: Allow searching based on the modification time of
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| 78 | //config: files, in days.
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| 79 | //config:
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| 80 | //config:config FEATURE_FIND_MMIN
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| 81 | //config: bool "Enable -mmin: modified time matching by minutes"
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| 82 | //config: default y
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| 83 | //config: depends on FIND
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| 84 | //config: help
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| 85 | //config: Allow searching based on the modification time of
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| 86 | //config: files, in minutes.
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| 87 | //config:
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| 88 | //config:config FEATURE_FIND_PERM
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| 89 | //config: bool "Enable -perm: permissions matching"
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| 90 | //config: default y
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| 91 | //config: depends on FIND
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| 92 | //config: help
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| 93 | //config: Enable searching based on file permissions.
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| 94 | //config:
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| 95 | //config:config FEATURE_FIND_TYPE
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| 96 | //config: bool "Enable -type: file type matching (file/dir/link/...)"
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| 97 | //config: default y
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| 98 | //config: depends on FIND
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| 99 | //config: help
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| 100 | //config: Enable searching based on file type (file,
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| 101 | //config: directory, socket, device, etc.).
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| 102 | //config:
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| 103 | //config:config FEATURE_FIND_XDEV
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| 104 | //config: bool "Enable -xdev: 'stay in filesystem'"
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| 105 | //config: default y
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| 106 | //config: depends on FIND
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| 107 | //config: help
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| 108 | //config: This option allows find to restrict searches to a single filesystem.
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| 109 | //config:
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| 110 | //config:config FEATURE_FIND_MAXDEPTH
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[3232] | 111 | //config: bool "Enable -mindepth N and -maxdepth N"
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[2725] | 112 | //config: default y
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| 113 | //config: depends on FIND
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| 114 | //config: help
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[3232] | 115 | //config: This option enables -mindepth N and -maxdepth N option.
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[2725] | 116 | //config:
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| 117 | //config:config FEATURE_FIND_NEWER
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| 118 | //config: bool "Enable -newer: compare file modification times"
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| 119 | //config: default y
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| 120 | //config: depends on FIND
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| 121 | //config: help
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| 122 | //config: Support the 'find -newer' option for finding any files which have
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[3232] | 123 | //config: modification time that is more recent than the specified FILE.
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[2725] | 124 | //config:
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| 125 | //config:config FEATURE_FIND_INUM
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| 126 | //config: bool "Enable -inum: inode number matching"
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| 127 | //config: default y
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| 128 | //config: depends on FIND
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| 129 | //config: help
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| 130 | //config: Support the 'find -inum' option for searching by inode number.
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| 131 | //config:
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| 132 | //config:config FEATURE_FIND_EXEC
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| 133 | //config: bool "Enable -exec: execute commands"
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| 134 | //config: default y
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| 135 | //config: depends on FIND
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| 136 | //config: help
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| 137 | //config: Support the 'find -exec' option for executing commands based upon
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| 138 | //config: the files matched.
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| 139 | //config:
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[3621] | 140 | //config:config FEATURE_FIND_EXEC_PLUS
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| 141 | //config: bool "Enable -exec ... {} +"
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| 142 | //config: default y
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| 143 | //config: depends on FEATURE_FIND_EXEC
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| 144 | //config: help
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| 145 | //config: Support the 'find -exec ... {} +' option for executing commands
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| 146 | //config: for all matched files at once.
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| 147 | //config: Without this option, -exec + is a synonym for -exec ;
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| 148 | //config: (IOW: it works correctly, but without expected speedup)
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| 149 | //config:
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[2725] | 150 | //config:config FEATURE_FIND_USER
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| 151 | //config: bool "Enable -user: username/uid matching"
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| 152 | //config: default y
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| 153 | //config: depends on FIND
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| 154 | //config: help
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| 155 | //config: Support the 'find -user' option for searching by username or uid.
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| 156 | //config:
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| 157 | //config:config FEATURE_FIND_GROUP
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| 158 | //config: bool "Enable -group: group/gid matching"
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| 159 | //config: default y
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| 160 | //config: depends on FIND
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| 161 | //config: help
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| 162 | //config: Support the 'find -group' option for searching by group name or gid.
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| 163 | //config:
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| 164 | //config:config FEATURE_FIND_NOT
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| 165 | //config: bool "Enable the 'not' (!) operator"
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| 166 | //config: default y
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| 167 | //config: depends on FIND
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| 168 | //config: help
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| 169 | //config: Support the '!' operator to invert the test results.
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| 170 | //config: If 'Enable full-blown desktop' is enabled, then will also support
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| 171 | //config: the non-POSIX notation '-not'.
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| 172 | //config:
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| 173 | //config:config FEATURE_FIND_DEPTH
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| 174 | //config: bool "Enable -depth"
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| 175 | //config: default y
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| 176 | //config: depends on FIND
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| 177 | //config: help
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| 178 | //config: Process each directory's contents before the directory itself.
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| 179 | //config:
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| 180 | //config:config FEATURE_FIND_PAREN
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| 181 | //config: bool "Enable parens in options"
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| 182 | //config: default y
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| 183 | //config: depends on FIND
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| 184 | //config: help
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| 185 | //config: Enable usage of parens '(' to specify logical order of arguments.
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| 186 | //config:
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| 187 | //config:config FEATURE_FIND_SIZE
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| 188 | //config: bool "Enable -size: file size matching"
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| 189 | //config: default y
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| 190 | //config: depends on FIND
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| 191 | //config: help
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| 192 | //config: Support the 'find -size' option for searching by file size.
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| 193 | //config:
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| 194 | //config:config FEATURE_FIND_PRUNE
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| 195 | //config: bool "Enable -prune: exclude subdirectories"
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| 196 | //config: default y
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| 197 | //config: depends on FIND
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| 198 | //config: help
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| 199 | //config: If the file is a directory, dont descend into it. Useful for
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| 200 | //config: exclusion .svn and CVS directories.
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| 201 | //config:
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| 202 | //config:config FEATURE_FIND_DELETE
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| 203 | //config: bool "Enable -delete: delete files/dirs"
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| 204 | //config: default y
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| 205 | //config: depends on FIND && FEATURE_FIND_DEPTH
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| 206 | //config: help
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| 207 | //config: Support the 'find -delete' option for deleting files and directories.
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| 208 | //config: WARNING: This option can do much harm if used wrong. Busybox will not
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| 209 | //config: try to protect the user from doing stupid things. Use with care.
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| 210 | //config:
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| 211 | //config:config FEATURE_FIND_PATH
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| 212 | //config: bool "Enable -path: match pathname with shell pattern"
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| 213 | //config: default y
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| 214 | //config: depends on FIND
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| 215 | //config: help
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| 216 | //config: The -path option matches whole pathname instead of just filename.
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| 217 | //config:
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| 218 | //config:config FEATURE_FIND_REGEX
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| 219 | //config: bool "Enable -regex: match pathname with regex"
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| 220 | //config: default y
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| 221 | //config: depends on FIND
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| 222 | //config: help
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| 223 | //config: The -regex option matches whole pathname against regular expression.
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| 224 | //config:
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| 225 | //config:config FEATURE_FIND_CONTEXT
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| 226 | //config: bool "Enable -context: security context matching"
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| 227 | //config: default n
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| 228 | //config: depends on FIND && SELINUX
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| 229 | //config: help
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| 230 | //config: Support the 'find -context' option for matching security context.
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| 231 | //config:
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| 232 | //config:config FEATURE_FIND_LINKS
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| 233 | //config: bool "Enable -links: link count matching"
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| 234 | //config: default y
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| 235 | //config: depends on FIND
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| 236 | //config: help
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| 237 | //config: Support the 'find -links' option for matching number of links.
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| 238 |
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[3232] | 239 | //applet:IF_FIND(APPLET_NOEXEC(find, find, BB_DIR_USR_BIN, BB_SUID_DROP, find))
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| 240 |
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| 241 | //kbuild:lib-$(CONFIG_FIND) += find.o
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| 242 |
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| 243 | //usage:#define find_trivial_usage
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[3621] | 244 | //usage: "[-HL] [PATH]... [OPTIONS] [ACTIONS]"
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[3232] | 245 | //usage:#define find_full_usage "\n\n"
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| 246 | //usage: "Search for files and perform actions on them.\n"
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| 247 | //usage: "First failed action stops processing of current file.\n"
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| 248 | //usage: "Defaults: PATH is current directory, action is '-print'\n"
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[3621] | 249 | //usage: "\n -L,-follow Follow symlinks"
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| 250 | //usage: "\n -H ...on command line only"
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[3232] | 251 | //usage: IF_FEATURE_FIND_XDEV(
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| 252 | //usage: "\n -xdev Don't descend directories on other filesystems"
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| 253 | //usage: )
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| 254 | //usage: IF_FEATURE_FIND_MAXDEPTH(
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| 255 | //usage: "\n -maxdepth N Descend at most N levels. -maxdepth 0 applies"
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| 256 | //usage: "\n actions to command line arguments only"
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| 257 | //usage: "\n -mindepth N Don't act on first N levels"
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| 258 | //usage: )
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| 259 | //usage: IF_FEATURE_FIND_DEPTH(
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| 260 | //usage: "\n -depth Act on directory *after* traversing it"
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| 261 | //usage: )
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| 262 | //usage: "\n"
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| 263 | //usage: "\nActions:"
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| 264 | //usage: IF_FEATURE_FIND_PAREN(
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| 265 | //usage: "\n ( ACTIONS ) Group actions for -o / -a"
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| 266 | //usage: )
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| 267 | //usage: IF_FEATURE_FIND_NOT(
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| 268 | //usage: "\n ! ACT Invert ACT's success/failure"
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| 269 | //usage: )
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| 270 | //usage: "\n ACT1 [-a] ACT2 If ACT1 fails, stop, else do ACT2"
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| 271 | //usage: "\n ACT1 -o ACT2 If ACT1 succeeds, stop, else do ACT2"
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| 272 | //usage: "\n Note: -a has higher priority than -o"
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| 273 | //usage: "\n -name PATTERN Match file name (w/o directory name) to PATTERN"
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| 274 | //usage: "\n -iname PATTERN Case insensitive -name"
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| 275 | //usage: IF_FEATURE_FIND_PATH(
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| 276 | //usage: "\n -path PATTERN Match path to PATTERN"
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| 277 | //usage: "\n -ipath PATTERN Case insensitive -path"
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| 278 | //usage: )
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| 279 | //usage: IF_FEATURE_FIND_REGEX(
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| 280 | //usage: "\n -regex PATTERN Match path to regex PATTERN"
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| 281 | //usage: )
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| 282 | //usage: IF_FEATURE_FIND_TYPE(
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| 283 | //usage: "\n -type X File type is X (one of: f,d,l,b,c,...)"
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| 284 | //usage: )
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| 285 | //usage: IF_FEATURE_FIND_PERM(
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| 286 | //usage: "\n -perm MASK At least one mask bit (+MASK), all bits (-MASK),"
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| 287 | //usage: "\n or exactly MASK bits are set in file's mode"
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| 288 | //usage: )
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| 289 | //usage: IF_FEATURE_FIND_MTIME(
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| 290 | //usage: "\n -mtime DAYS mtime is greater than (+N), less than (-N),"
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| 291 | //usage: "\n or exactly N days in the past"
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| 292 | //usage: )
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| 293 | //usage: IF_FEATURE_FIND_MMIN(
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| 294 | //usage: "\n -mmin MINS mtime is greater than (+N), less than (-N),"
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| 295 | //usage: "\n or exactly N minutes in the past"
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| 296 | //usage: )
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| 297 | //usage: IF_FEATURE_FIND_NEWER(
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| 298 | //usage: "\n -newer FILE mtime is more recent than FILE's"
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| 299 | //usage: )
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| 300 | //usage: IF_FEATURE_FIND_INUM(
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| 301 | //usage: "\n -inum N File has inode number N"
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| 302 | //usage: )
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| 303 | //usage: IF_FEATURE_FIND_USER(
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| 304 | //usage: "\n -user NAME/ID File is owned by given user"
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| 305 | //usage: )
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| 306 | //usage: IF_FEATURE_FIND_GROUP(
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| 307 | //usage: "\n -group NAME/ID File is owned by given group"
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| 308 | //usage: )
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| 309 | //usage: IF_FEATURE_FIND_SIZE(
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| 310 | //usage: "\n -size N[bck] File size is N (c:bytes,k:kbytes,b:512 bytes(def.))"
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| 311 | //usage: "\n +/-N: file size is bigger/smaller than N"
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| 312 | //usage: )
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| 313 | //usage: IF_FEATURE_FIND_LINKS(
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| 314 | //usage: "\n -links N Number of links is greater than (+N), less than (-N),"
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| 315 | //usage: "\n or exactly N"
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| 316 | //usage: )
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| 317 | //usage: IF_FEATURE_FIND_CONTEXT(
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| 318 | //usage: "\n -context CTX File has specified security context"
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| 319 | //usage: )
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| 320 | //usage: IF_FEATURE_FIND_PRUNE(
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| 321 | //usage: "\n -prune If current file is directory, don't descend into it"
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| 322 | //usage: )
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| 323 | //usage: "\nIf none of the following actions is specified, -print is assumed"
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| 324 | //usage: "\n -print Print file name"
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| 325 | //usage: IF_FEATURE_FIND_PRINT0(
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| 326 | //usage: "\n -print0 Print file name, NUL terminated"
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| 327 | //usage: )
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| 328 | //usage: IF_FEATURE_FIND_EXEC(
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| 329 | //usage: "\n -exec CMD ARG ; Run CMD with all instances of {} replaced by"
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| 330 | //usage: "\n file name. Fails if CMD exits with nonzero"
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| 331 | //usage: )
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[3621] | 332 | //usage: IF_FEATURE_FIND_EXEC_PLUS(
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| 333 | //usage: "\n -exec CMD ARG + Run CMD with {} replaced by list of file names"
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| 334 | //usage: )
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[3232] | 335 | //usage: IF_FEATURE_FIND_DELETE(
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| 336 | //usage: "\n -delete Delete current file/directory. Turns on -depth option"
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| 337 | //usage: )
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| 338 | //usage:
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| 339 | //usage:#define find_example_usage
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| 340 | //usage: "$ find / -name passwd\n"
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| 341 | //usage: "/etc/passwd\n"
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| 342 |
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[1765] | 343 | #include <fnmatch.h>
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| 344 | #include "libbb.h"
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[3621] | 345 | #include "common_bufsiz.h"
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[1765] | 346 | #if ENABLE_FEATURE_FIND_REGEX
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[3232] | 347 | # include "xregex.h"
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[821] | 348 | #endif
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[3232] | 349 | /* GNUism: */
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| 350 | #ifndef FNM_CASEFOLD
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| 351 | # define FNM_CASEFOLD 0
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| 352 | #endif
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[821] | 353 |
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[3621] | 354 | #if 1
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| 355 | # define dbg(...) ((void)0)
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| 356 | #else
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| 357 | # define dbg(...) bb_error_msg(__VA_ARGS__)
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| 358 | #endif
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[3232] | 359 |
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[3621] | 360 |
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[1765] | 361 | /* This is a NOEXEC applet. Be very careful! */
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[821] | 362 |
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| 363 |
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[2725] | 364 | typedef int (*action_fp)(const char *fileName, const struct stat *statbuf, void *) FAST_FUNC;
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[821] | 365 |
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[1765] | 366 | typedef struct {
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| 367 | action_fp f;
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| 368 | #if ENABLE_FEATURE_FIND_NOT
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| 369 | bool invert;
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[821] | 370 | #endif
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[1765] | 371 | } action;
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[821] | 372 |
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[2725] | 373 | #define ACTS(name, ...) typedef struct { action a; __VA_ARGS__ } action_##name;
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| 374 | #define ACTF(name) \
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| 375 | static int FAST_FUNC func_##name(const char *fileName UNUSED_PARAM, \
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| 376 | const struct stat *statbuf UNUSED_PARAM, \
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| 377 | action_##name* ap UNUSED_PARAM)
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[821] | 378 |
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[2725] | 379 | ACTS(print)
|
---|
| 380 | ACTS(name, const char *pattern; bool iname;)
|
---|
[3232] | 381 | IF_FEATURE_FIND_PATH( ACTS(path, const char *pattern; bool ipath;))
|
---|
[2725] | 382 | IF_FEATURE_FIND_REGEX( ACTS(regex, regex_t compiled_pattern;))
|
---|
| 383 | IF_FEATURE_FIND_PRINT0( ACTS(print0))
|
---|
| 384 | IF_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
|
---|
| 385 | IF_FEATURE_FIND_PERM( ACTS(perm, char perm_char; mode_t perm_mask;))
|
---|
| 386 | IF_FEATURE_FIND_MTIME( ACTS(mtime, char mtime_char; unsigned mtime_days;))
|
---|
| 387 | IF_FEATURE_FIND_MMIN( ACTS(mmin, char mmin_char; unsigned mmin_mins;))
|
---|
| 388 | IF_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
|
---|
| 389 | IF_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
|
---|
| 390 | IF_FEATURE_FIND_USER( ACTS(user, uid_t uid;))
|
---|
| 391 | IF_FEATURE_FIND_SIZE( ACTS(size, char size_char; off_t size;))
|
---|
| 392 | IF_FEATURE_FIND_CONTEXT(ACTS(context, security_context_t context;))
|
---|
| 393 | IF_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
|
---|
| 394 | IF_FEATURE_FIND_PRUNE( ACTS(prune))
|
---|
| 395 | IF_FEATURE_FIND_DELETE( ACTS(delete))
|
---|
[3621] | 396 | IF_FEATURE_FIND_EXEC( ACTS(exec,
|
---|
| 397 | char **exec_argv; /* -exec ARGS */
|
---|
| 398 | unsigned *subst_count;
|
---|
| 399 | int exec_argc; /* count of ARGS */
|
---|
| 400 | IF_FEATURE_FIND_EXEC_PLUS(
|
---|
| 401 | /*
|
---|
| 402 | * filelist is NULL if "exec ;"
|
---|
| 403 | * non-NULL if "exec +"
|
---|
| 404 | */
|
---|
| 405 | char **filelist;
|
---|
| 406 | int filelist_idx;
|
---|
| 407 | int file_len;
|
---|
| 408 | )
|
---|
| 409 | ))
|
---|
[2725] | 410 | IF_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;))
|
---|
| 411 | IF_FEATURE_FIND_LINKS( ACTS(links, char links_char; int links_count;))
|
---|
| 412 |
|
---|
| 413 | struct globals {
|
---|
| 414 | IF_FEATURE_FIND_XDEV(dev_t *xdev_dev;)
|
---|
| 415 | IF_FEATURE_FIND_XDEV(int xdev_count;)
|
---|
[3232] | 416 | #if ENABLE_FEATURE_FIND_MAXDEPTH
|
---|
| 417 | int minmaxdepth[2];
|
---|
| 418 | #endif
|
---|
[2725] | 419 | action ***actions;
|
---|
[3232] | 420 | smallint need_print;
|
---|
| 421 | smallint xdev_on;
|
---|
[2725] | 422 | recurse_flags_t recurse_flags;
|
---|
[3621] | 423 | IF_FEATURE_FIND_EXEC_PLUS(unsigned max_argv_len;)
|
---|
[2725] | 424 | } FIX_ALIASING;
|
---|
[3621] | 425 | #define G (*(struct globals*)bb_common_bufsiz1)
|
---|
[2725] | 426 | #define INIT_G() do { \
|
---|
[3621] | 427 | setup_common_bufsiz(); \
|
---|
| 428 | BUILD_BUG_ON(sizeof(G) > COMMON_BUFSIZE); \
|
---|
[2725] | 429 | /* we have to zero it out because of NOEXEC */ \
|
---|
[3232] | 430 | memset(&G, 0, sizeof(G)); \
|
---|
| 431 | IF_FEATURE_FIND_MAXDEPTH(G.minmaxdepth[1] = INT_MAX;) \
|
---|
[3621] | 432 | IF_FEATURE_FIND_EXEC_PLUS(G.max_argv_len = bb_arg_max() - 2048;) \
|
---|
[2725] | 433 | G.need_print = 1; \
|
---|
| 434 | G.recurse_flags = ACTION_RECURSE; \
|
---|
| 435 | } while (0)
|
---|
| 436 |
|
---|
[1765] | 437 | /* Return values of ACTFs ('action functions') are a bit mask:
|
---|
| 438 | * bit 1=1: prune (use SKIP constant for setting it)
|
---|
| 439 | * bit 0=1: matched successfully (TRUE)
|
---|
| 440 | */
|
---|
| 441 |
|
---|
[2725] | 442 | static int exec_actions(action ***appp, const char *fileName, const struct stat *statbuf)
|
---|
[821] | 443 | {
|
---|
[1765] | 444 | int cur_group;
|
---|
| 445 | int cur_action;
|
---|
| 446 | int rc = 0;
|
---|
| 447 | action **app, *ap;
|
---|
| 448 |
|
---|
| 449 | /* "action group" is a set of actions ANDed together.
|
---|
| 450 | * groups are ORed together.
|
---|
| 451 | * We simply evaluate each group until we find one in which all actions
|
---|
| 452 | * succeed. */
|
---|
| 453 |
|
---|
| 454 | /* -prune is special: if it is encountered, then we won't
|
---|
| 455 | * descend into current directory. It doesn't matter whether
|
---|
| 456 | * action group (in which -prune sits) will succeed or not:
|
---|
| 457 | * find * -prune -name 'f*' -o -name 'm*' -- prunes every dir
|
---|
| 458 | * find * -name 'f*' -o -prune -name 'm*' -- prunes all dirs
|
---|
| 459 | * not starting with 'f' */
|
---|
| 460 |
|
---|
| 461 | /* We invert TRUE bit (bit 0). Now 1 there means 'failure'.
|
---|
| 462 | * and bitwise OR in "rc |= TRUE ^ ap->f()" will:
|
---|
| 463 | * (1) make SKIP (-prune) bit stick; and (2) detect 'failure'.
|
---|
| 464 | * On return, bit is restored. */
|
---|
| 465 |
|
---|
| 466 | cur_group = -1;
|
---|
[2725] | 467 | while ((app = appp[++cur_group]) != NULL) {
|
---|
[1765] | 468 | rc &= ~TRUE; /* 'success' so far, clear TRUE bit */
|
---|
| 469 | cur_action = -1;
|
---|
| 470 | while (1) {
|
---|
| 471 | ap = app[++cur_action];
|
---|
| 472 | if (!ap) /* all actions in group were successful */
|
---|
| 473 | return rc ^ TRUE; /* restore TRUE bit */
|
---|
| 474 | rc |= TRUE ^ ap->f(fileName, statbuf, ap);
|
---|
| 475 | #if ENABLE_FEATURE_FIND_NOT
|
---|
| 476 | if (ap->invert) rc ^= TRUE;
|
---|
| 477 | #endif
|
---|
[3232] | 478 | dbg("grp %d action %d rc:0x%x", cur_group, cur_action, rc);
|
---|
[1765] | 479 | if (rc & TRUE) /* current group failed, try next */
|
---|
| 480 | break;
|
---|
[821] | 481 | }
|
---|
| 482 | }
|
---|
[3232] | 483 | dbg("returning:0x%x", rc ^ TRUE);
|
---|
[1765] | 484 | return rc ^ TRUE; /* restore TRUE bit */
|
---|
| 485 | }
|
---|
[821] | 486 |
|
---|
[3232] | 487 | #if !FNM_CASEFOLD
|
---|
| 488 | static char *strcpy_upcase(char *dst, const char *src)
|
---|
| 489 | {
|
---|
| 490 | char *d = dst;
|
---|
| 491 | while (1) {
|
---|
| 492 | unsigned char ch = *src++;
|
---|
| 493 | if (ch >= 'a' && ch <= 'z')
|
---|
| 494 | ch -= ('a' - 'A');
|
---|
| 495 | *d++ = ch;
|
---|
| 496 | if (ch == '\0')
|
---|
| 497 | break;
|
---|
| 498 | }
|
---|
| 499 | return dst;
|
---|
| 500 | }
|
---|
| 501 | #endif
|
---|
| 502 |
|
---|
[1765] | 503 | ACTF(name)
|
---|
| 504 | {
|
---|
| 505 | const char *tmp = bb_basename(fileName);
|
---|
[2725] | 506 | if (tmp != fileName && *tmp == '\0') {
|
---|
| 507 | /* "foo/bar/". Oh no... go back to 'b' */
|
---|
[1765] | 508 | tmp--;
|
---|
| 509 | while (tmp != fileName && *--tmp != '/')
|
---|
| 510 | continue;
|
---|
| 511 | if (*tmp == '/')
|
---|
[821] | 512 | tmp++;
|
---|
| 513 | }
|
---|
[2725] | 514 | /* Was using FNM_PERIOD flag too,
|
---|
| 515 | * but somewhere between 4.1.20 and 4.4.0 GNU find stopped using it.
|
---|
| 516 | * find -name '*foo' should match .foo too:
|
---|
| 517 | */
|
---|
[3232] | 518 | #if FNM_CASEFOLD
|
---|
[2725] | 519 | return fnmatch(ap->pattern, tmp, (ap->iname ? FNM_CASEFOLD : 0)) == 0;
|
---|
[3232] | 520 | #else
|
---|
| 521 | if (ap->iname)
|
---|
| 522 | tmp = strcpy_upcase(alloca(strlen(tmp) + 1), tmp);
|
---|
| 523 | return fnmatch(ap->pattern, tmp, 0) == 0;
|
---|
| 524 | #endif
|
---|
[1765] | 525 | }
|
---|
[2725] | 526 |
|
---|
[1765] | 527 | #if ENABLE_FEATURE_FIND_PATH
|
---|
| 528 | ACTF(path)
|
---|
| 529 | {
|
---|
[3232] | 530 | # if FNM_CASEFOLD
|
---|
| 531 | return fnmatch(ap->pattern, fileName, (ap->ipath ? FNM_CASEFOLD : 0)) == 0;
|
---|
| 532 | # else
|
---|
| 533 | if (ap->ipath)
|
---|
| 534 | fileName = strcpy_upcase(alloca(strlen(fileName) + 1), fileName);
|
---|
[1765] | 535 | return fnmatch(ap->pattern, fileName, 0) == 0;
|
---|
[3232] | 536 | # endif
|
---|
[1765] | 537 | }
|
---|
[821] | 538 | #endif
|
---|
[1765] | 539 | #if ENABLE_FEATURE_FIND_REGEX
|
---|
| 540 | ACTF(regex)
|
---|
| 541 | {
|
---|
| 542 | regmatch_t match;
|
---|
| 543 | if (regexec(&ap->compiled_pattern, fileName, 1, &match, 0 /*eflags*/))
|
---|
| 544 | return 0; /* no match */
|
---|
| 545 | if (match.rm_so)
|
---|
| 546 | return 0; /* match doesn't start at pos 0 */
|
---|
| 547 | if (fileName[match.rm_eo])
|
---|
| 548 | return 0; /* match doesn't end exactly at end of pathname */
|
---|
| 549 | return 1;
|
---|
| 550 | }
|
---|
[821] | 551 | #endif
|
---|
[1765] | 552 | #if ENABLE_FEATURE_FIND_TYPE
|
---|
| 553 | ACTF(type)
|
---|
| 554 | {
|
---|
| 555 | return ((statbuf->st_mode & S_IFMT) == ap->type_mask);
|
---|
| 556 | }
|
---|
[821] | 557 | #endif
|
---|
[1765] | 558 | #if ENABLE_FEATURE_FIND_PERM
|
---|
| 559 | ACTF(perm)
|
---|
| 560 | {
|
---|
[3621] | 561 | /* -perm [+/]mode: at least one of perm_mask bits are set */
|
---|
| 562 | if (ap->perm_char == '+' || ap->perm_char == '/')
|
---|
[1765] | 563 | return (statbuf->st_mode & ap->perm_mask) != 0;
|
---|
| 564 | /* -perm -mode: all of perm_mask are set */
|
---|
| 565 | if (ap->perm_char == '-')
|
---|
| 566 | return (statbuf->st_mode & ap->perm_mask) == ap->perm_mask;
|
---|
| 567 | /* -perm mode: file mode must match perm_mask */
|
---|
| 568 | return (statbuf->st_mode & 07777) == ap->perm_mask;
|
---|
| 569 | }
|
---|
[821] | 570 | #endif
|
---|
[1765] | 571 | #if ENABLE_FEATURE_FIND_MTIME
|
---|
| 572 | ACTF(mtime)
|
---|
| 573 | {
|
---|
| 574 | time_t file_age = time(NULL) - statbuf->st_mtime;
|
---|
| 575 | time_t mtime_secs = ap->mtime_days * 24*60*60;
|
---|
| 576 | if (ap->mtime_char == '+')
|
---|
| 577 | return file_age >= mtime_secs + 24*60*60;
|
---|
| 578 | if (ap->mtime_char == '-')
|
---|
| 579 | return file_age < mtime_secs;
|
---|
| 580 | /* just numeric mtime */
|
---|
| 581 | return file_age >= mtime_secs && file_age < (mtime_secs + 24*60*60);
|
---|
| 582 | }
|
---|
[821] | 583 | #endif
|
---|
[1765] | 584 | #if ENABLE_FEATURE_FIND_MMIN
|
---|
| 585 | ACTF(mmin)
|
---|
| 586 | {
|
---|
| 587 | time_t file_age = time(NULL) - statbuf->st_mtime;
|
---|
| 588 | time_t mmin_secs = ap->mmin_mins * 60;
|
---|
| 589 | if (ap->mmin_char == '+')
|
---|
| 590 | return file_age >= mmin_secs + 60;
|
---|
| 591 | if (ap->mmin_char == '-')
|
---|
| 592 | return file_age < mmin_secs;
|
---|
| 593 | /* just numeric mmin */
|
---|
| 594 | return file_age >= mmin_secs && file_age < (mmin_secs + 60);
|
---|
| 595 | }
|
---|
| 596 | #endif
|
---|
| 597 | #if ENABLE_FEATURE_FIND_NEWER
|
---|
| 598 | ACTF(newer)
|
---|
| 599 | {
|
---|
| 600 | return (ap->newer_mtime < statbuf->st_mtime);
|
---|
| 601 | }
|
---|
| 602 | #endif
|
---|
| 603 | #if ENABLE_FEATURE_FIND_INUM
|
---|
| 604 | ACTF(inum)
|
---|
| 605 | {
|
---|
| 606 | return (statbuf->st_ino == ap->inode_num);
|
---|
| 607 | }
|
---|
| 608 | #endif
|
---|
| 609 | #if ENABLE_FEATURE_FIND_EXEC
|
---|
[3621] | 610 | static int do_exec(action_exec *ap, const char *fileName)
|
---|
[1765] | 611 | {
|
---|
| 612 | int i, rc;
|
---|
[3621] | 613 | # if ENABLE_FEATURE_FIND_EXEC_PLUS
|
---|
| 614 | int size = ap->exec_argc + ap->filelist_idx + 1;
|
---|
| 615 | # else
|
---|
| 616 | int size = ap->exec_argc + 1;
|
---|
| 617 | # endif
|
---|
| 618 | # if ENABLE_USE_PORTABLE_CODE
|
---|
| 619 | char **argv = alloca(sizeof(char*) * size);
|
---|
| 620 | # else /* gcc 4.3.1 generates smaller code: */
|
---|
| 621 | char *argv[size];
|
---|
| 622 | # endif
|
---|
| 623 | char **pp = argv;
|
---|
[1765] | 624 |
|
---|
[3621] | 625 | for (i = 0; i < ap->exec_argc; i++) {
|
---|
| 626 | const char *arg = ap->exec_argv[i];
|
---|
| 627 |
|
---|
| 628 | # if ENABLE_FEATURE_FIND_EXEC_PLUS
|
---|
| 629 | if (ap->filelist) {
|
---|
| 630 | /* Handling "-exec +"
|
---|
| 631 | * Only one exec_argv[i] has substitution in it.
|
---|
| 632 | * Expand that one exec_argv[i] into file list.
|
---|
| 633 | */
|
---|
| 634 | if (ap->subst_count[i] == 0) {
|
---|
| 635 | *pp++ = xstrdup(arg);
|
---|
| 636 | } else {
|
---|
| 637 | int j = 0;
|
---|
| 638 | while (ap->filelist[j]) {
|
---|
| 639 | /* 2nd arg here should be ap->subst_count[i], but it is always 1: */
|
---|
| 640 | *pp++ = xmalloc_substitute_string(arg, 1, "{}", ap->filelist[j]);
|
---|
| 641 | free(ap->filelist[j]);
|
---|
| 642 | j++;
|
---|
| 643 | }
|
---|
| 644 | }
|
---|
| 645 | } else
|
---|
| 646 | # endif
|
---|
| 647 | {
|
---|
| 648 | /* Handling "-exec ;" */
|
---|
| 649 | *pp++ = xmalloc_substitute_string(arg, ap->subst_count[i], "{}", fileName);
|
---|
| 650 | }
|
---|
| 651 | }
|
---|
| 652 | *pp = NULL; /* terminate the list */
|
---|
| 653 |
|
---|
| 654 | # if ENABLE_FEATURE_FIND_EXEC_PLUS
|
---|
| 655 | if (ap->filelist) {
|
---|
| 656 | ap->filelist[0] = NULL;
|
---|
| 657 | ap->filelist_idx = 0;
|
---|
| 658 | ap->file_len = 0;
|
---|
| 659 | }
|
---|
| 660 | # endif
|
---|
| 661 |
|
---|
[1765] | 662 | rc = spawn_and_wait(argv);
|
---|
| 663 | if (rc < 0)
|
---|
[2725] | 664 | bb_simple_perror_msg(argv[0]);
|
---|
[1765] | 665 |
|
---|
| 666 | i = 0;
|
---|
| 667 | while (argv[i])
|
---|
| 668 | free(argv[i++]);
|
---|
| 669 | return rc == 0; /* return 1 if exitcode 0 */
|
---|
| 670 | }
|
---|
[3621] | 671 | ACTF(exec)
|
---|
| 672 | {
|
---|
| 673 | # if ENABLE_FEATURE_FIND_EXEC_PLUS
|
---|
| 674 | if (ap->filelist) {
|
---|
| 675 | int rc;
|
---|
| 676 |
|
---|
| 677 | ap->filelist = xrealloc_vector(ap->filelist, 8, ap->filelist_idx);
|
---|
| 678 | ap->filelist[ap->filelist_idx++] = xstrdup(fileName);
|
---|
| 679 | ap->file_len += strlen(fileName) + sizeof(char*) + 1;
|
---|
| 680 | /* If we have lots of files already, exec the command */
|
---|
| 681 | rc = 1;
|
---|
| 682 | if (ap->file_len >= G.max_argv_len)
|
---|
| 683 | rc = do_exec(ap, NULL);
|
---|
| 684 | return rc;
|
---|
| 685 | }
|
---|
| 686 | # endif
|
---|
| 687 | return do_exec(ap, fileName);
|
---|
| 688 | }
|
---|
| 689 | # if ENABLE_FEATURE_FIND_EXEC_PLUS
|
---|
| 690 | static int flush_exec_plus(void)
|
---|
| 691 | {
|
---|
| 692 | action *ap;
|
---|
| 693 | action **app;
|
---|
| 694 | action ***appp = G.actions;
|
---|
| 695 | while ((app = *appp++) != NULL) {
|
---|
| 696 | while ((ap = *app++) != NULL) {
|
---|
| 697 | if (ap->f == (action_fp)func_exec) {
|
---|
| 698 | action_exec *ae = (void*)ap;
|
---|
| 699 | if (ae->filelist_idx != 0) {
|
---|
| 700 | int rc = do_exec(ae, NULL);
|
---|
| 701 | # if ENABLE_FEATURE_FIND_NOT
|
---|
| 702 | if (ap->invert) rc = !rc;
|
---|
| 703 | # endif
|
---|
| 704 | if (rc == 0)
|
---|
| 705 | return 1;
|
---|
| 706 | }
|
---|
| 707 | }
|
---|
| 708 | }
|
---|
| 709 | }
|
---|
| 710 | return 0;
|
---|
| 711 | }
|
---|
| 712 | # endif
|
---|
[1765] | 713 | #endif
|
---|
| 714 | #if ENABLE_FEATURE_FIND_USER
|
---|
| 715 | ACTF(user)
|
---|
| 716 | {
|
---|
| 717 | return (statbuf->st_uid == ap->uid);
|
---|
| 718 | }
|
---|
| 719 | #endif
|
---|
| 720 | #if ENABLE_FEATURE_FIND_GROUP
|
---|
| 721 | ACTF(group)
|
---|
| 722 | {
|
---|
| 723 | return (statbuf->st_gid == ap->gid);
|
---|
| 724 | }
|
---|
| 725 | #endif
|
---|
| 726 | #if ENABLE_FEATURE_FIND_PRINT0
|
---|
| 727 | ACTF(print0)
|
---|
| 728 | {
|
---|
| 729 | printf("%s%c", fileName, '\0');
|
---|
| 730 | return TRUE;
|
---|
| 731 | }
|
---|
| 732 | #endif
|
---|
| 733 | ACTF(print)
|
---|
| 734 | {
|
---|
| 735 | puts(fileName);
|
---|
| 736 | return TRUE;
|
---|
| 737 | }
|
---|
| 738 | #if ENABLE_FEATURE_FIND_PAREN
|
---|
| 739 | ACTF(paren)
|
---|
| 740 | {
|
---|
| 741 | return exec_actions(ap->subexpr, fileName, statbuf);
|
---|
| 742 | }
|
---|
| 743 | #endif
|
---|
| 744 | #if ENABLE_FEATURE_FIND_SIZE
|
---|
| 745 | ACTF(size)
|
---|
| 746 | {
|
---|
| 747 | if (ap->size_char == '+')
|
---|
| 748 | return statbuf->st_size > ap->size;
|
---|
| 749 | if (ap->size_char == '-')
|
---|
| 750 | return statbuf->st_size < ap->size;
|
---|
| 751 | return statbuf->st_size == ap->size;
|
---|
| 752 | }
|
---|
| 753 | #endif
|
---|
| 754 | #if ENABLE_FEATURE_FIND_PRUNE
|
---|
| 755 | /*
|
---|
| 756 | * -prune: if -depth is not given, return true and do not descend
|
---|
| 757 | * current dir; if -depth is given, return false with no effect.
|
---|
| 758 | * Example:
|
---|
| 759 | * find dir -name 'asm-*' -prune -o -name '*.[chS]' -print
|
---|
| 760 | */
|
---|
| 761 | ACTF(prune)
|
---|
| 762 | {
|
---|
| 763 | return SKIP + TRUE;
|
---|
| 764 | }
|
---|
| 765 | #endif
|
---|
| 766 | #if ENABLE_FEATURE_FIND_DELETE
|
---|
| 767 | ACTF(delete)
|
---|
| 768 | {
|
---|
| 769 | int rc;
|
---|
| 770 | if (S_ISDIR(statbuf->st_mode)) {
|
---|
[3621] | 771 | /* "find . -delete" skips rmdir(".") */
|
---|
| 772 | rc = 0;
|
---|
| 773 | if (NOT_LONE_CHAR(fileName, '.'))
|
---|
| 774 | rc = rmdir(fileName);
|
---|
[1765] | 775 | } else {
|
---|
| 776 | rc = unlink(fileName);
|
---|
[821] | 777 | }
|
---|
[1765] | 778 | if (rc < 0)
|
---|
[2725] | 779 | bb_simple_perror_msg(fileName);
|
---|
[1765] | 780 | return TRUE;
|
---|
| 781 | }
|
---|
[821] | 782 | #endif
|
---|
[1765] | 783 | #if ENABLE_FEATURE_FIND_CONTEXT
|
---|
| 784 | ACTF(context)
|
---|
| 785 | {
|
---|
| 786 | security_context_t con;
|
---|
| 787 | int rc;
|
---|
| 788 |
|
---|
[2725] | 789 | if (G.recurse_flags & ACTION_FOLLOWLINKS) {
|
---|
[1765] | 790 | rc = getfilecon(fileName, &con);
|
---|
| 791 | } else {
|
---|
| 792 | rc = lgetfilecon(fileName, &con);
|
---|
[821] | 793 | }
|
---|
[1765] | 794 | if (rc < 0)
|
---|
| 795 | return FALSE;
|
---|
| 796 | rc = strcmp(ap->context, con);
|
---|
| 797 | freecon(con);
|
---|
| 798 | return rc == 0;
|
---|
| 799 | }
|
---|
[821] | 800 | #endif
|
---|
[2725] | 801 | #if ENABLE_FEATURE_FIND_LINKS
|
---|
| 802 | ACTF(links)
|
---|
| 803 | {
|
---|
| 804 | switch(ap->links_char) {
|
---|
| 805 | case '-' : return (statbuf->st_nlink < ap->links_count);
|
---|
| 806 | case '+' : return (statbuf->st_nlink > ap->links_count);
|
---|
| 807 | default: return (statbuf->st_nlink == ap->links_count);
|
---|
| 808 | }
|
---|
| 809 | }
|
---|
| 810 | #endif
|
---|
[821] | 811 |
|
---|
[2725] | 812 | static int FAST_FUNC fileAction(const char *fileName,
|
---|
| 813 | struct stat *statbuf,
|
---|
[3232] | 814 | void *userData UNUSED_PARAM,
|
---|
[2725] | 815 | int depth IF_NOT_FEATURE_FIND_MAXDEPTH(UNUSED_PARAM))
|
---|
[1765] | 816 | {
|
---|
[2725] | 817 | int r;
|
---|
[3232] | 818 | int same_fs = 1;
|
---|
| 819 |
|
---|
| 820 | #if ENABLE_FEATURE_FIND_XDEV
|
---|
| 821 | if (S_ISDIR(statbuf->st_mode) && G.xdev_count) {
|
---|
| 822 | int i;
|
---|
| 823 | for (i = 0; i < G.xdev_count; i++) {
|
---|
| 824 | if (G.xdev_dev[i] == statbuf->st_dev)
|
---|
| 825 | goto found;
|
---|
| 826 | }
|
---|
| 827 | //bb_error_msg("'%s': not same fs", fileName);
|
---|
| 828 | same_fs = 0;
|
---|
| 829 | found: ;
|
---|
| 830 | }
|
---|
| 831 | #endif
|
---|
| 832 |
|
---|
[1765] | 833 | #if ENABLE_FEATURE_FIND_MAXDEPTH
|
---|
[3232] | 834 | if (depth < G.minmaxdepth[0]) {
|
---|
| 835 | if (same_fs)
|
---|
| 836 | return TRUE; /* skip this, continue recursing */
|
---|
[2725] | 837 | return SKIP; /* stop recursing */
|
---|
[3232] | 838 | }
|
---|
| 839 | if (depth > G.minmaxdepth[1])
|
---|
| 840 | return SKIP; /* stop recursing */
|
---|
[821] | 841 | #endif
|
---|
[1765] | 842 |
|
---|
[2725] | 843 | r = exec_actions(G.actions, fileName, statbuf);
|
---|
| 844 | /* Had no explicit -print[0] or -exec? then print */
|
---|
| 845 | if ((r & TRUE) && G.need_print)
|
---|
| 846 | puts(fileName);
|
---|
| 847 |
|
---|
| 848 | #if ENABLE_FEATURE_FIND_MAXDEPTH
|
---|
| 849 | if (S_ISDIR(statbuf->st_mode)) {
|
---|
[3232] | 850 | if (depth == G.minmaxdepth[1])
|
---|
[2725] | 851 | return SKIP;
|
---|
| 852 | }
|
---|
| 853 | #endif
|
---|
| 854 | /* -xdev stops on mountpoints, but AFTER mountpoit itself
|
---|
| 855 | * is processed as usual */
|
---|
[3232] | 856 | if (!same_fs) {
|
---|
| 857 | return SKIP;
|
---|
[1765] | 858 | }
|
---|
[2725] | 859 |
|
---|
[1765] | 860 | /* Cannot return 0: our caller, recursive_action(),
|
---|
| 861 | * will perror() and skip dirs (if called on dir) */
|
---|
[2725] | 862 | return (r & SKIP) ? SKIP : TRUE;
|
---|
[821] | 863 | }
|
---|
| 864 |
|
---|
[1765] | 865 |
|
---|
| 866 | #if ENABLE_FEATURE_FIND_TYPE
|
---|
| 867 | static int find_type(const char *type)
|
---|
[821] | 868 | {
|
---|
| 869 | int mask = 0;
|
---|
| 870 |
|
---|
[1765] | 871 | if (*type == 'b')
|
---|
| 872 | mask = S_IFBLK;
|
---|
| 873 | else if (*type == 'c')
|
---|
| 874 | mask = S_IFCHR;
|
---|
| 875 | else if (*type == 'd')
|
---|
| 876 | mask = S_IFDIR;
|
---|
| 877 | else if (*type == 'p')
|
---|
| 878 | mask = S_IFIFO;
|
---|
| 879 | else if (*type == 'f')
|
---|
| 880 | mask = S_IFREG;
|
---|
| 881 | else if (*type == 'l')
|
---|
| 882 | mask = S_IFLNK;
|
---|
| 883 | else if (*type == 's')
|
---|
| 884 | mask = S_IFSOCK;
|
---|
[821] | 885 |
|
---|
[2725] | 886 | if (mask == 0 || type[1] != '\0')
|
---|
[3621] | 887 | bb_error_msg_and_die(bb_msg_invalid_arg_to, type, "-type");
|
---|
[821] | 888 |
|
---|
| 889 | return mask;
|
---|
| 890 | }
|
---|
| 891 | #endif
|
---|
| 892 |
|
---|
[1765] | 893 | #if ENABLE_FEATURE_FIND_PERM \
|
---|
| 894 | || ENABLE_FEATURE_FIND_MTIME || ENABLE_FEATURE_FIND_MMIN \
|
---|
[2725] | 895 | || ENABLE_FEATURE_FIND_SIZE || ENABLE_FEATURE_FIND_LINKS
|
---|
[1765] | 896 | static const char* plus_minus_num(const char* str)
|
---|
[821] | 897 | {
|
---|
[1765] | 898 | if (*str == '-' || *str == '+')
|
---|
| 899 | str++;
|
---|
| 900 | return str;
|
---|
| 901 | }
|
---|
| 902 | #endif
|
---|
[821] | 903 |
|
---|
[3621] | 904 | /* Say no to GCCism */
|
---|
| 905 | #define USE_NESTED_FUNCTION 0
|
---|
| 906 |
|
---|
| 907 | #if !USE_NESTED_FUNCTION
|
---|
| 908 | struct pp_locals {
|
---|
| 909 | action*** appp;
|
---|
| 910 | unsigned cur_group;
|
---|
| 911 | unsigned cur_action;
|
---|
| 912 | IF_FEATURE_FIND_NOT( bool invert_flag; )
|
---|
| 913 | };
|
---|
| 914 | static action* alloc_action(struct pp_locals *ppl, int sizeof_struct, action_fp f)
|
---|
| 915 | {
|
---|
| 916 | action *ap = xzalloc(sizeof_struct);
|
---|
| 917 | action **app;
|
---|
| 918 | action ***group = &ppl->appp[ppl->cur_group];
|
---|
| 919 | *group = app = xrealloc(*group, (ppl->cur_action+2) * sizeof(ppl->appp[0][0]));
|
---|
| 920 | app[ppl->cur_action++] = ap;
|
---|
| 921 | app[ppl->cur_action] = NULL;
|
---|
| 922 | ap->f = f;
|
---|
| 923 | IF_FEATURE_FIND_NOT( ap->invert = ppl->invert_flag; )
|
---|
| 924 | IF_FEATURE_FIND_NOT( ppl->invert_flag = 0; )
|
---|
| 925 | return ap;
|
---|
| 926 | }
|
---|
| 927 | #endif
|
---|
| 928 |
|
---|
[1765] | 929 | static action*** parse_params(char **argv)
|
---|
| 930 | {
|
---|
| 931 | enum {
|
---|
[3232] | 932 | OPT_FOLLOW ,
|
---|
| 933 | IF_FEATURE_FIND_XDEV( OPT_XDEV ,)
|
---|
| 934 | IF_FEATURE_FIND_DEPTH( OPT_DEPTH ,)
|
---|
[2725] | 935 | PARM_a ,
|
---|
| 936 | PARM_o ,
|
---|
| 937 | IF_FEATURE_FIND_NOT( PARM_char_not ,)
|
---|
[1765] | 938 | #if ENABLE_DESKTOP
|
---|
[2725] | 939 | PARM_and ,
|
---|
| 940 | PARM_or ,
|
---|
| 941 | IF_FEATURE_FIND_NOT( PARM_not ,)
|
---|
[1765] | 942 | #endif
|
---|
[2725] | 943 | PARM_print ,
|
---|
| 944 | IF_FEATURE_FIND_PRINT0( PARM_print0 ,)
|
---|
| 945 | IF_FEATURE_FIND_PRUNE( PARM_prune ,)
|
---|
| 946 | IF_FEATURE_FIND_DELETE( PARM_delete ,)
|
---|
| 947 | IF_FEATURE_FIND_EXEC( PARM_exec ,)
|
---|
| 948 | IF_FEATURE_FIND_PAREN( PARM_char_brace,)
|
---|
[3232] | 949 | /* All options/actions starting from here require argument */
|
---|
[2725] | 950 | PARM_name ,
|
---|
| 951 | PARM_iname ,
|
---|
| 952 | IF_FEATURE_FIND_PATH( PARM_path ,)
|
---|
[3232] | 953 | #if ENABLE_DESKTOP
|
---|
| 954 | /* -wholename is a synonym for -path */
|
---|
| 955 | /* We support it because Linux kernel's "make tags" uses it */
|
---|
| 956 | IF_FEATURE_FIND_PATH( PARM_wholename ,)
|
---|
| 957 | #endif
|
---|
| 958 | IF_FEATURE_FIND_PATH( PARM_ipath ,)
|
---|
[2725] | 959 | IF_FEATURE_FIND_REGEX( PARM_regex ,)
|
---|
| 960 | IF_FEATURE_FIND_TYPE( PARM_type ,)
|
---|
| 961 | IF_FEATURE_FIND_PERM( PARM_perm ,)
|
---|
| 962 | IF_FEATURE_FIND_MTIME( PARM_mtime ,)
|
---|
| 963 | IF_FEATURE_FIND_MMIN( PARM_mmin ,)
|
---|
| 964 | IF_FEATURE_FIND_NEWER( PARM_newer ,)
|
---|
| 965 | IF_FEATURE_FIND_INUM( PARM_inum ,)
|
---|
| 966 | IF_FEATURE_FIND_USER( PARM_user ,)
|
---|
| 967 | IF_FEATURE_FIND_GROUP( PARM_group ,)
|
---|
| 968 | IF_FEATURE_FIND_SIZE( PARM_size ,)
|
---|
| 969 | IF_FEATURE_FIND_CONTEXT(PARM_context ,)
|
---|
| 970 | IF_FEATURE_FIND_LINKS( PARM_links ,)
|
---|
[3232] | 971 | IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,OPT_MAXDEPTH,)
|
---|
[1765] | 972 | };
|
---|
| 973 |
|
---|
| 974 | static const char params[] ALIGN1 =
|
---|
[3232] | 975 | "-follow\0"
|
---|
| 976 | IF_FEATURE_FIND_XDEV( "-xdev\0" )
|
---|
| 977 | IF_FEATURE_FIND_DEPTH( "-depth\0" )
|
---|
| 978 | "-a\0"
|
---|
| 979 | "-o\0"
|
---|
[2725] | 980 | IF_FEATURE_FIND_NOT( "!\0" )
|
---|
[1765] | 981 | #if ENABLE_DESKTOP
|
---|
[3232] | 982 | "-and\0"
|
---|
| 983 | "-or\0"
|
---|
| 984 | IF_FEATURE_FIND_NOT( "-not\0" )
|
---|
[1765] | 985 | #endif
|
---|
[3232] | 986 | "-print\0"
|
---|
[2725] | 987 | IF_FEATURE_FIND_PRINT0( "-print0\0" )
|
---|
| 988 | IF_FEATURE_FIND_PRUNE( "-prune\0" )
|
---|
| 989 | IF_FEATURE_FIND_DELETE( "-delete\0" )
|
---|
| 990 | IF_FEATURE_FIND_EXEC( "-exec\0" )
|
---|
| 991 | IF_FEATURE_FIND_PAREN( "(\0" )
|
---|
[3232] | 992 | /* All options/actions starting from here require argument */
|
---|
| 993 | "-name\0"
|
---|
| 994 | "-iname\0"
|
---|
[2725] | 995 | IF_FEATURE_FIND_PATH( "-path\0" )
|
---|
[3232] | 996 | #if ENABLE_DESKTOP
|
---|
| 997 | IF_FEATURE_FIND_PATH( "-wholename\0")
|
---|
| 998 | #endif
|
---|
| 999 | IF_FEATURE_FIND_PATH( "-ipath\0" )
|
---|
[2725] | 1000 | IF_FEATURE_FIND_REGEX( "-regex\0" )
|
---|
| 1001 | IF_FEATURE_FIND_TYPE( "-type\0" )
|
---|
| 1002 | IF_FEATURE_FIND_PERM( "-perm\0" )
|
---|
| 1003 | IF_FEATURE_FIND_MTIME( "-mtime\0" )
|
---|
| 1004 | IF_FEATURE_FIND_MMIN( "-mmin\0" )
|
---|
| 1005 | IF_FEATURE_FIND_NEWER( "-newer\0" )
|
---|
| 1006 | IF_FEATURE_FIND_INUM( "-inum\0" )
|
---|
| 1007 | IF_FEATURE_FIND_USER( "-user\0" )
|
---|
| 1008 | IF_FEATURE_FIND_GROUP( "-group\0" )
|
---|
| 1009 | IF_FEATURE_FIND_SIZE( "-size\0" )
|
---|
| 1010 | IF_FEATURE_FIND_CONTEXT("-context\0")
|
---|
| 1011 | IF_FEATURE_FIND_LINKS( "-links\0" )
|
---|
[3232] | 1012 | IF_FEATURE_FIND_MAXDEPTH("-mindepth\0""-maxdepth\0")
|
---|
| 1013 | ;
|
---|
[1765] | 1014 |
|
---|
[3621] | 1015 | #if !USE_NESTED_FUNCTION
|
---|
| 1016 | struct pp_locals ppl;
|
---|
| 1017 | #define appp (ppl.appp )
|
---|
| 1018 | #define cur_group (ppl.cur_group )
|
---|
| 1019 | #define cur_action (ppl.cur_action )
|
---|
| 1020 | #define invert_flag (ppl.invert_flag)
|
---|
| 1021 | #define ALLOC_ACTION(name) (action_##name*)alloc_action(&ppl, sizeof(action_##name), (action_fp) func_##name)
|
---|
| 1022 | #else
|
---|
[1765] | 1023 | action*** appp;
|
---|
[3621] | 1024 | unsigned cur_group;
|
---|
| 1025 | unsigned cur_action;
|
---|
| 1026 | IF_FEATURE_FIND_NOT( bool invert_flag; )
|
---|
[1765] | 1027 |
|
---|
[2725] | 1028 | /* This is the only place in busybox where we use nested function.
|
---|
| 1029 | * So far more standard alternatives were bigger. */
|
---|
| 1030 | /* Auto decl suppresses "func without a prototype" warning: */
|
---|
| 1031 | auto action* alloc_action(int sizeof_struct, action_fp f);
|
---|
[1765] | 1032 | action* alloc_action(int sizeof_struct, action_fp f)
|
---|
| 1033 | {
|
---|
| 1034 | action *ap;
|
---|
[3621] | 1035 | appp[cur_group] = xrealloc(appp[cur_group], (cur_action+2) * sizeof(appp[0][0]));
|
---|
[2725] | 1036 | appp[cur_group][cur_action++] = ap = xzalloc(sizeof_struct);
|
---|
[1765] | 1037 | appp[cur_group][cur_action] = NULL;
|
---|
| 1038 | ap->f = f;
|
---|
[2725] | 1039 | IF_FEATURE_FIND_NOT( ap->invert = invert_flag; )
|
---|
| 1040 | IF_FEATURE_FIND_NOT( invert_flag = 0; )
|
---|
[1765] | 1041 | return ap;
|
---|
[821] | 1042 | }
|
---|
[1765] | 1043 | #define ALLOC_ACTION(name) (action_##name*)alloc_action(sizeof(action_##name), (action_fp) func_##name)
|
---|
[3621] | 1044 | #endif
|
---|
[1765] | 1045 |
|
---|
[3621] | 1046 | cur_group = 0;
|
---|
| 1047 | cur_action = 0;
|
---|
| 1048 | IF_FEATURE_FIND_NOT( invert_flag = 0; )
|
---|
[1765] | 1049 | appp = xzalloc(2 * sizeof(appp[0])); /* appp[0],[1] == NULL */
|
---|
| 1050 |
|
---|
| 1051 | while (*argv) {
|
---|
| 1052 | const char *arg = argv[0];
|
---|
| 1053 | int parm = index_in_strings(params, arg);
|
---|
| 1054 | const char *arg1 = argv[1];
|
---|
| 1055 |
|
---|
[3232] | 1056 | dbg("arg:'%s' arg1:'%s' parm:%d PARM_type:%d", arg, arg1, parm, PARM_type);
|
---|
| 1057 |
|
---|
[1765] | 1058 | if (parm >= PARM_name) {
|
---|
[3232] | 1059 | /* All options/actions starting from -name require argument */
|
---|
[1765] | 1060 | if (!arg1)
|
---|
| 1061 | bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
---|
| 1062 | argv++;
|
---|
| 1063 | }
|
---|
| 1064 |
|
---|
| 1065 | /* We can use big switch() here, but on i386
|
---|
| 1066 | * it doesn't give smaller code. Other arches? */
|
---|
| 1067 |
|
---|
[3232] | 1068 | /* Options always return true. They always take effect
|
---|
| 1069 | * rather than being processed only when their place in the
|
---|
| 1070 | * expression is reached.
|
---|
| 1071 | */
|
---|
| 1072 | /* Options */
|
---|
| 1073 | if (parm == OPT_FOLLOW) {
|
---|
[3621] | 1074 | dbg("follow enabled: %d", __LINE__);
|
---|
| 1075 | G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
|
---|
[3232] | 1076 | }
|
---|
| 1077 | #if ENABLE_FEATURE_FIND_XDEV
|
---|
| 1078 | else if (parm == OPT_XDEV) {
|
---|
| 1079 | dbg("%d", __LINE__);
|
---|
| 1080 | G.xdev_on = 1;
|
---|
| 1081 | }
|
---|
| 1082 | #endif
|
---|
| 1083 | #if ENABLE_FEATURE_FIND_MAXDEPTH
|
---|
| 1084 | else if (parm == OPT_MINDEPTH || parm == OPT_MINDEPTH + 1) {
|
---|
| 1085 | dbg("%d", __LINE__);
|
---|
| 1086 | G.minmaxdepth[parm - OPT_MINDEPTH] = xatoi_positive(arg1);
|
---|
| 1087 | }
|
---|
| 1088 | #endif
|
---|
| 1089 | #if ENABLE_FEATURE_FIND_DEPTH
|
---|
| 1090 | else if (parm == OPT_DEPTH) {
|
---|
| 1091 | dbg("%d", __LINE__);
|
---|
| 1092 | G.recurse_flags |= ACTION_DEPTHFIRST;
|
---|
| 1093 | }
|
---|
| 1094 | #endif
|
---|
| 1095 | /* Actions are grouped by operators
|
---|
| 1096 | * ( expr ) Force precedence
|
---|
| 1097 | * ! expr True if expr is false
|
---|
| 1098 | * -not expr Same as ! expr
|
---|
| 1099 | * expr1 [-a[nd]] expr2 And; expr2 is not evaluated if expr1 is false
|
---|
| 1100 | * expr1 -o[r] expr2 Or; expr2 is not evaluated if expr1 is true
|
---|
| 1101 | * expr1 , expr2 List; both expr1 and expr2 are always evaluated
|
---|
| 1102 | * We implement: (), -a, -o
|
---|
| 1103 | */
|
---|
| 1104 | /* Operators */
|
---|
| 1105 | else if (parm == PARM_a IF_DESKTOP(|| parm == PARM_and)) {
|
---|
| 1106 | dbg("%d", __LINE__);
|
---|
[1765] | 1107 | /* no further special handling required */
|
---|
| 1108 | }
|
---|
[2725] | 1109 | else if (parm == PARM_o IF_DESKTOP(|| parm == PARM_or)) {
|
---|
[3232] | 1110 | dbg("%d", __LINE__);
|
---|
[1765] | 1111 | /* start new OR group */
|
---|
| 1112 | cur_group++;
|
---|
[3621] | 1113 | appp = xrealloc(appp, (cur_group+2) * sizeof(appp[0]));
|
---|
[1765] | 1114 | /*appp[cur_group] = NULL; - already NULL */
|
---|
| 1115 | appp[cur_group+1] = NULL;
|
---|
| 1116 | cur_action = 0;
|
---|
| 1117 | }
|
---|
| 1118 | #if ENABLE_FEATURE_FIND_NOT
|
---|
[2725] | 1119 | else if (parm == PARM_char_not IF_DESKTOP(|| parm == PARM_not)) {
|
---|
[1765] | 1120 | /* also handles "find ! ! -name 'foo*'" */
|
---|
| 1121 | invert_flag ^= 1;
|
---|
[3232] | 1122 | dbg("invert_flag:%d", invert_flag);
|
---|
[1765] | 1123 | }
|
---|
[821] | 1124 | #endif
|
---|
[3232] | 1125 | /* Actions */
|
---|
[1765] | 1126 | else if (parm == PARM_print) {
|
---|
[3232] | 1127 | dbg("%d", __LINE__);
|
---|
[2725] | 1128 | G.need_print = 0;
|
---|
[1765] | 1129 | (void) ALLOC_ACTION(print);
|
---|
| 1130 | }
|
---|
| 1131 | #if ENABLE_FEATURE_FIND_PRINT0
|
---|
| 1132 | else if (parm == PARM_print0) {
|
---|
[3232] | 1133 | dbg("%d", __LINE__);
|
---|
[2725] | 1134 | G.need_print = 0;
|
---|
[1765] | 1135 | (void) ALLOC_ACTION(print0);
|
---|
| 1136 | }
|
---|
[821] | 1137 | #endif
|
---|
[1765] | 1138 | #if ENABLE_FEATURE_FIND_PRUNE
|
---|
| 1139 | else if (parm == PARM_prune) {
|
---|
[3232] | 1140 | dbg("%d", __LINE__);
|
---|
[1765] | 1141 | (void) ALLOC_ACTION(prune);
|
---|
| 1142 | }
|
---|
[821] | 1143 | #endif
|
---|
[1765] | 1144 | #if ENABLE_FEATURE_FIND_DELETE
|
---|
| 1145 | else if (parm == PARM_delete) {
|
---|
[3232] | 1146 | dbg("%d", __LINE__);
|
---|
[2725] | 1147 | G.need_print = 0;
|
---|
| 1148 | G.recurse_flags |= ACTION_DEPTHFIRST;
|
---|
[1765] | 1149 | (void) ALLOC_ACTION(delete);
|
---|
| 1150 | }
|
---|
[821] | 1151 | #endif
|
---|
[1765] | 1152 | #if ENABLE_FEATURE_FIND_EXEC
|
---|
| 1153 | else if (parm == PARM_exec) {
|
---|
| 1154 | int i;
|
---|
| 1155 | action_exec *ap;
|
---|
[3621] | 1156 | IF_FEATURE_FIND_EXEC_PLUS(int all_subst = 0;)
|
---|
[3232] | 1157 | dbg("%d", __LINE__);
|
---|
[2725] | 1158 | G.need_print = 0;
|
---|
[1765] | 1159 | ap = ALLOC_ACTION(exec);
|
---|
| 1160 | ap->exec_argv = ++argv; /* first arg after -exec */
|
---|
[2725] | 1161 | /*ap->exec_argc = 0; - ALLOC_ACTION did it */
|
---|
[1765] | 1162 | while (1) {
|
---|
[2725] | 1163 | if (!*argv) /* did not see ';' or '+' until end */
|
---|
| 1164 | bb_error_msg_and_die(bb_msg_requires_arg, "-exec");
|
---|
| 1165 | // find -exec echo Foo ">{}<" ";"
|
---|
[3232] | 1166 | // executes "echo Foo >FILENAME<",
|
---|
[2725] | 1167 | // find -exec echo Foo ">{}<" "+"
|
---|
[3232] | 1168 | // executes "echo Foo FILENAME1 FILENAME2 FILENAME3...".
|
---|
[2725] | 1169 | if ((argv[0][0] == ';' || argv[0][0] == '+')
|
---|
| 1170 | && argv[0][1] == '\0'
|
---|
| 1171 | ) {
|
---|
[3621] | 1172 | # if ENABLE_FEATURE_FIND_EXEC_PLUS
|
---|
| 1173 | if (argv[0][0] == '+')
|
---|
| 1174 | ap->filelist = xzalloc(sizeof(ap->filelist[0]));
|
---|
| 1175 | # endif
|
---|
[1765] | 1176 | break;
|
---|
[2725] | 1177 | }
|
---|
[1765] | 1178 | argv++;
|
---|
| 1179 | ap->exec_argc++;
|
---|
[821] | 1180 | }
|
---|
[1765] | 1181 | if (ap->exec_argc == 0)
|
---|
| 1182 | bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
---|
| 1183 | ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
|
---|
| 1184 | i = ap->exec_argc;
|
---|
[3621] | 1185 | while (i--) {
|
---|
| 1186 | ap->subst_count[i] = count_strstr(ap->exec_argv[i], "{}");
|
---|
| 1187 | IF_FEATURE_FIND_EXEC_PLUS(all_subst += ap->subst_count[i];)
|
---|
| 1188 | }
|
---|
| 1189 | # if ENABLE_FEATURE_FIND_EXEC_PLUS
|
---|
| 1190 | /*
|
---|
| 1191 | * coreutils expects {} to appear only once in "-exec +"
|
---|
| 1192 | */
|
---|
| 1193 | if (all_subst != 1 && ap->filelist)
|
---|
| 1194 | bb_error_msg_and_die("only one '{}' allowed for -exec +");
|
---|
| 1195 | # endif
|
---|
[1765] | 1196 | }
|
---|
| 1197 | #endif
|
---|
| 1198 | #if ENABLE_FEATURE_FIND_PAREN
|
---|
| 1199 | else if (parm == PARM_char_brace) {
|
---|
| 1200 | action_paren *ap;
|
---|
| 1201 | char **endarg;
|
---|
| 1202 | unsigned nested = 1;
|
---|
[821] | 1203 |
|
---|
[3232] | 1204 | dbg("%d", __LINE__);
|
---|
[1765] | 1205 | endarg = argv;
|
---|
| 1206 | while (1) {
|
---|
| 1207 | if (!*++endarg)
|
---|
| 1208 | bb_error_msg_and_die("unpaired '('");
|
---|
| 1209 | if (LONE_CHAR(*endarg, '('))
|
---|
| 1210 | nested++;
|
---|
| 1211 | else if (LONE_CHAR(*endarg, ')') && !--nested) {
|
---|
| 1212 | *endarg = NULL;
|
---|
| 1213 | break;
|
---|
[821] | 1214 | }
|
---|
| 1215 | }
|
---|
[1765] | 1216 | ap = ALLOC_ACTION(paren);
|
---|
| 1217 | ap->subexpr = parse_params(argv + 1);
|
---|
| 1218 | *endarg = (char*) ")"; /* restore NULLed parameter */
|
---|
| 1219 | argv = endarg;
|
---|
| 1220 | }
|
---|
[821] | 1221 | #endif
|
---|
[2725] | 1222 | else if (parm == PARM_name || parm == PARM_iname) {
|
---|
[1765] | 1223 | action_name *ap;
|
---|
[3232] | 1224 | dbg("%d", __LINE__);
|
---|
[1765] | 1225 | ap = ALLOC_ACTION(name);
|
---|
| 1226 | ap->pattern = arg1;
|
---|
[2725] | 1227 | ap->iname = (parm == PARM_iname);
|
---|
[1765] | 1228 | }
|
---|
| 1229 | #if ENABLE_FEATURE_FIND_PATH
|
---|
[3232] | 1230 | else if (parm == PARM_path IF_DESKTOP(|| parm == PARM_wholename) || parm == PARM_ipath) {
|
---|
[1765] | 1231 | action_path *ap;
|
---|
[3232] | 1232 | dbg("%d", __LINE__);
|
---|
[1765] | 1233 | ap = ALLOC_ACTION(path);
|
---|
| 1234 | ap->pattern = arg1;
|
---|
[3232] | 1235 | ap->ipath = (parm == PARM_ipath);
|
---|
[1765] | 1236 | }
|
---|
| 1237 | #endif
|
---|
| 1238 | #if ENABLE_FEATURE_FIND_REGEX
|
---|
| 1239 | else if (parm == PARM_regex) {
|
---|
| 1240 | action_regex *ap;
|
---|
[3232] | 1241 | dbg("%d", __LINE__);
|
---|
[1765] | 1242 | ap = ALLOC_ACTION(regex);
|
---|
| 1243 | xregcomp(&ap->compiled_pattern, arg1, 0 /*cflags*/);
|
---|
| 1244 | }
|
---|
| 1245 | #endif
|
---|
| 1246 | #if ENABLE_FEATURE_FIND_TYPE
|
---|
| 1247 | else if (parm == PARM_type) {
|
---|
| 1248 | action_type *ap;
|
---|
| 1249 | ap = ALLOC_ACTION(type);
|
---|
| 1250 | ap->type_mask = find_type(arg1);
|
---|
[3232] | 1251 | dbg("created:type mask:%x", ap->type_mask);
|
---|
[1765] | 1252 | }
|
---|
| 1253 | #endif
|
---|
| 1254 | #if ENABLE_FEATURE_FIND_PERM
|
---|
[3232] | 1255 | /* -perm BITS File's mode bits are exactly BITS (octal or symbolic).
|
---|
[1765] | 1256 | * Symbolic modes use mode 0 as a point of departure.
|
---|
[3232] | 1257 | * -perm -BITS All of the BITS are set in file's mode.
|
---|
[3621] | 1258 | * -perm [+/]BITS At least one of the BITS is set in file's mode.
|
---|
[1765] | 1259 | */
|
---|
| 1260 | else if (parm == PARM_perm) {
|
---|
| 1261 | action_perm *ap;
|
---|
[3232] | 1262 | dbg("%d", __LINE__);
|
---|
[1765] | 1263 | ap = ALLOC_ACTION(perm);
|
---|
| 1264 | ap->perm_char = arg1[0];
|
---|
[3621] | 1265 | arg1 = (arg1[0] == '/' ? arg1+1 : plus_minus_num(arg1));
|
---|
[2725] | 1266 | /*ap->perm_mask = 0; - ALLOC_ACTION did it */
|
---|
[3621] | 1267 | ap->perm_mask = bb_parse_mode(arg1, ap->perm_mask);
|
---|
| 1268 | if (ap->perm_mask == (mode_t)-1)
|
---|
[2725] | 1269 | bb_error_msg_and_die("invalid mode '%s'", arg1);
|
---|
[1765] | 1270 | }
|
---|
| 1271 | #endif
|
---|
| 1272 | #if ENABLE_FEATURE_FIND_MTIME
|
---|
| 1273 | else if (parm == PARM_mtime) {
|
---|
| 1274 | action_mtime *ap;
|
---|
[3232] | 1275 | dbg("%d", __LINE__);
|
---|
[1765] | 1276 | ap = ALLOC_ACTION(mtime);
|
---|
| 1277 | ap->mtime_char = arg1[0];
|
---|
| 1278 | ap->mtime_days = xatoul(plus_minus_num(arg1));
|
---|
| 1279 | }
|
---|
| 1280 | #endif
|
---|
| 1281 | #if ENABLE_FEATURE_FIND_MMIN
|
---|
| 1282 | else if (parm == PARM_mmin) {
|
---|
| 1283 | action_mmin *ap;
|
---|
[3232] | 1284 | dbg("%d", __LINE__);
|
---|
[1765] | 1285 | ap = ALLOC_ACTION(mmin);
|
---|
| 1286 | ap->mmin_char = arg1[0];
|
---|
| 1287 | ap->mmin_mins = xatoul(plus_minus_num(arg1));
|
---|
| 1288 | }
|
---|
| 1289 | #endif
|
---|
| 1290 | #if ENABLE_FEATURE_FIND_NEWER
|
---|
| 1291 | else if (parm == PARM_newer) {
|
---|
[821] | 1292 | struct stat stat_newer;
|
---|
[1765] | 1293 | action_newer *ap;
|
---|
[3232] | 1294 | dbg("%d", __LINE__);
|
---|
[1765] | 1295 | ap = ALLOC_ACTION(newer);
|
---|
| 1296 | xstat(arg1, &stat_newer);
|
---|
| 1297 | ap->newer_mtime = stat_newer.st_mtime;
|
---|
| 1298 | }
|
---|
[821] | 1299 | #endif
|
---|
[1765] | 1300 | #if ENABLE_FEATURE_FIND_INUM
|
---|
| 1301 | else if (parm == PARM_inum) {
|
---|
| 1302 | action_inum *ap;
|
---|
[3232] | 1303 | dbg("%d", __LINE__);
|
---|
[1765] | 1304 | ap = ALLOC_ACTION(inum);
|
---|
| 1305 | ap->inode_num = xatoul(arg1);
|
---|
| 1306 | }
|
---|
[821] | 1307 | #endif
|
---|
[1765] | 1308 | #if ENABLE_FEATURE_FIND_USER
|
---|
| 1309 | else if (parm == PARM_user) {
|
---|
| 1310 | action_user *ap;
|
---|
[3232] | 1311 | dbg("%d", __LINE__);
|
---|
[1765] | 1312 | ap = ALLOC_ACTION(user);
|
---|
| 1313 | ap->uid = bb_strtou(arg1, NULL, 10);
|
---|
| 1314 | if (errno)
|
---|
| 1315 | ap->uid = xuname2uid(arg1);
|
---|
| 1316 | }
|
---|
| 1317 | #endif
|
---|
| 1318 | #if ENABLE_FEATURE_FIND_GROUP
|
---|
| 1319 | else if (parm == PARM_group) {
|
---|
| 1320 | action_group *ap;
|
---|
[3232] | 1321 | dbg("%d", __LINE__);
|
---|
[1765] | 1322 | ap = ALLOC_ACTION(group);
|
---|
| 1323 | ap->gid = bb_strtou(arg1, NULL, 10);
|
---|
| 1324 | if (errno)
|
---|
| 1325 | ap->gid = xgroup2gid(arg1);
|
---|
| 1326 | }
|
---|
| 1327 | #endif
|
---|
| 1328 | #if ENABLE_FEATURE_FIND_SIZE
|
---|
| 1329 | else if (parm == PARM_size) {
|
---|
| 1330 | /* -size n[bckw]: file uses n units of space
|
---|
| 1331 | * b (default): units are 512-byte blocks
|
---|
| 1332 | * c: 1 byte
|
---|
| 1333 | * k: kilobytes
|
---|
| 1334 | * w: 2-byte words
|
---|
| 1335 | */
|
---|
| 1336 | #if ENABLE_LFS
|
---|
| 1337 | #define XATOU_SFX xatoull_sfx
|
---|
| 1338 | #else
|
---|
| 1339 | #define XATOU_SFX xatoul_sfx
|
---|
| 1340 | #endif
|
---|
| 1341 | static const struct suffix_mult find_suffixes[] = {
|
---|
| 1342 | { "c", 1 },
|
---|
| 1343 | { "w", 2 },
|
---|
| 1344 | { "", 512 },
|
---|
| 1345 | { "b", 512 },
|
---|
| 1346 | { "k", 1024 },
|
---|
[2725] | 1347 | { "", 0 }
|
---|
[1765] | 1348 | };
|
---|
| 1349 | action_size *ap;
|
---|
[3232] | 1350 | dbg("%d", __LINE__);
|
---|
[1765] | 1351 | ap = ALLOC_ACTION(size);
|
---|
| 1352 | ap->size_char = arg1[0];
|
---|
| 1353 | ap->size = XATOU_SFX(plus_minus_num(arg1), find_suffixes);
|
---|
| 1354 | }
|
---|
| 1355 | #endif
|
---|
| 1356 | #if ENABLE_FEATURE_FIND_CONTEXT
|
---|
| 1357 | else if (parm == PARM_context) {
|
---|
| 1358 | action_context *ap;
|
---|
[3232] | 1359 | dbg("%d", __LINE__);
|
---|
[1765] | 1360 | ap = ALLOC_ACTION(context);
|
---|
[2725] | 1361 | /*ap->context = NULL; - ALLOC_ACTION did it */
|
---|
[1765] | 1362 | /* SELinux headers erroneously declare non-const parameter */
|
---|
| 1363 | if (selinux_raw_to_trans_context((char*)arg1, &ap->context))
|
---|
[2725] | 1364 | bb_simple_perror_msg(arg1);
|
---|
[1765] | 1365 | }
|
---|
| 1366 | #endif
|
---|
[2725] | 1367 | #if ENABLE_FEATURE_FIND_LINKS
|
---|
| 1368 | else if (parm == PARM_links) {
|
---|
| 1369 | action_links *ap;
|
---|
[3232] | 1370 | dbg("%d", __LINE__);
|
---|
[2725] | 1371 | ap = ALLOC_ACTION(links);
|
---|
| 1372 | ap->links_char = arg1[0];
|
---|
| 1373 | ap->links_count = xatoul(plus_minus_num(arg1));
|
---|
| 1374 | }
|
---|
| 1375 | #endif
|
---|
[1765] | 1376 | else {
|
---|
| 1377 | bb_error_msg("unrecognized: %s", arg);
|
---|
| 1378 | bb_show_usage();
|
---|
| 1379 | }
|
---|
| 1380 | argv++;
|
---|
| 1381 | }
|
---|
[3232] | 1382 | dbg("exiting %s", __func__);
|
---|
[1765] | 1383 | return appp;
|
---|
| 1384 | #undef ALLOC_ACTION
|
---|
[3621] | 1385 | #undef appp
|
---|
| 1386 | #undef cur_action
|
---|
| 1387 | #undef invert_flag
|
---|
[1765] | 1388 | }
|
---|
[821] | 1389 |
|
---|
[2725] | 1390 | int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 1391 | int find_main(int argc UNUSED_PARAM, char **argv)
|
---|
[1765] | 1392 | {
|
---|
| 1393 | int i, firstopt, status = EXIT_SUCCESS;
|
---|
[3621] | 1394 | char **past_HLP, *saved;
|
---|
[1765] | 1395 |
|
---|
[2725] | 1396 | INIT_G();
|
---|
| 1397 |
|
---|
[3621] | 1398 | /* "find -type f" + getopt("+HLP") => disaster.
|
---|
| 1399 | * Need to avoid getopt running into a non-HLP option.
|
---|
| 1400 | * Do this by temporarily storing NULL there:
|
---|
| 1401 | */
|
---|
| 1402 | past_HLP = argv;
|
---|
| 1403 | for (;;) {
|
---|
| 1404 | saved = *++past_HLP;
|
---|
| 1405 | if (!saved)
|
---|
| 1406 | break;
|
---|
| 1407 | if (saved[0] != '-')
|
---|
| 1408 | break;
|
---|
| 1409 | if (!saved[1])
|
---|
| 1410 | break; /* it is "-" */
|
---|
| 1411 | if ((saved+1)[strspn(saved+1, "HLP")] != '\0')
|
---|
| 1412 | break;
|
---|
| 1413 | }
|
---|
| 1414 | *past_HLP = NULL;
|
---|
| 1415 | /* "+": stop on first non-option */
|
---|
| 1416 | i = getopt32(argv, "+HLP");
|
---|
| 1417 | if (i & (1<<0))
|
---|
| 1418 | G.recurse_flags |= ACTION_FOLLOWLINKS_L0 | ACTION_DANGLING_OK;
|
---|
| 1419 | if (i & (1<<1))
|
---|
| 1420 | G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
|
---|
| 1421 | /* -P is default and is ignored */
|
---|
| 1422 | argv = past_HLP; /* same result as "argv += optind;" */
|
---|
| 1423 | *past_HLP = saved;
|
---|
| 1424 |
|
---|
[3232] | 1425 | for (firstopt = 0; argv[firstopt]; firstopt++) {
|
---|
[1765] | 1426 | if (argv[firstopt][0] == '-')
|
---|
| 1427 | break;
|
---|
| 1428 | if (ENABLE_FEATURE_FIND_NOT && LONE_CHAR(argv[firstopt], '!'))
|
---|
| 1429 | break;
|
---|
[3232] | 1430 | if (ENABLE_FEATURE_FIND_PAREN && LONE_CHAR(argv[firstopt], '('))
|
---|
[1765] | 1431 | break;
|
---|
| 1432 | }
|
---|
[3232] | 1433 | if (firstopt == 0) {
|
---|
| 1434 | *--argv = (char*)".";
|
---|
[1765] | 1435 | firstopt++;
|
---|
| 1436 | }
|
---|
| 1437 |
|
---|
[3232] | 1438 | G.actions = parse_params(&argv[firstopt]);
|
---|
| 1439 | argv[firstopt] = NULL;
|
---|
| 1440 |
|
---|
[1765] | 1441 | #if ENABLE_FEATURE_FIND_XDEV
|
---|
[3232] | 1442 | if (G.xdev_on) {
|
---|
| 1443 | struct stat stbuf;
|
---|
| 1444 |
|
---|
| 1445 | G.xdev_count = firstopt;
|
---|
| 1446 | G.xdev_dev = xzalloc(G.xdev_count * sizeof(G.xdev_dev[0]));
|
---|
| 1447 | for (i = 0; argv[i]; i++) {
|
---|
| 1448 | /* not xstat(): shouldn't bomb out on
|
---|
| 1449 | * "find not_exist exist -xdev" */
|
---|
| 1450 | if (stat(argv[i], &stbuf) == 0)
|
---|
| 1451 | G.xdev_dev[i] = stbuf.st_dev;
|
---|
| 1452 | /* else G.xdev_dev[i] stays 0 and
|
---|
| 1453 | * won't match any real device dev_t
|
---|
| 1454 | */
|
---|
[1765] | 1455 | }
|
---|
[3232] | 1456 | }
|
---|
[821] | 1457 | #endif
|
---|
| 1458 |
|
---|
[3232] | 1459 | for (i = 0; argv[i]; i++) {
|
---|
[1765] | 1460 | if (!recursive_action(argv[i],
|
---|
[2725] | 1461 | G.recurse_flags,/* flags */
|
---|
[1765] | 1462 | fileAction, /* file action */
|
---|
| 1463 | fileAction, /* dir action */
|
---|
| 1464 | NULL, /* user data */
|
---|
[3232] | 1465 | 0) /* depth */
|
---|
| 1466 | ) {
|
---|
[3621] | 1467 | status |= EXIT_FAILURE;
|
---|
[3232] | 1468 | }
|
---|
[821] | 1469 | }
|
---|
[3232] | 1470 |
|
---|
[3621] | 1471 | IF_FEATURE_FIND_EXEC_PLUS(status |= flush_exec_plus();)
|
---|
[821] | 1472 | return status;
|
---|
| 1473 | }
|
---|