1485 lines
42 KiB
C
1485 lines
42 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini find implementation for busybox
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* Reworked by David Douthitt <n9ubh@callsign.net> and
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* Matt Kraai <kraai@alumni.carnegiemellon.edu>.
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*
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* Licensed under GPLv2, see file LICENSE in this source tree.
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*/
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/* findutils-4.1.20:
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*
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* # find file.txt -exec 'echo {}' '{} {}' ';'
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* find: echo file.txt: No such file or directory
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* # find file.txt -exec 'echo' '{} {}' '; '
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* find: missing argument to '-exec'
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* # find file.txt -exec 'echo {}' '{} {}' ';' junk
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* find: paths must precede expression
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* # find file.txt -exec 'echo {}' '{} {}' ';' junk ';'
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* find: paths must precede expression
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* # find file.txt -exec 'echo' '{} {}' ';'
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* file.txt file.txt
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* (strace: execve("/bin/echo", ["echo", "file.txt file.txt"], [ 30 vars ]))
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* # find file.txt -exec 'echo' '{} {}' ';' -print -exec pwd ';'
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* file.txt file.txt
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* file.txt
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* /tmp
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* # find -name '*.c' -o -name '*.h'
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* [shows files, *.c and *.h intermixed]
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* # find file.txt -name '*f*' -o -name '*t*'
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* file.txt
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* # find file.txt -name '*z*' -o -name '*t*'
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* file.txt
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* # find file.txt -name '*f*' -o -name '*z*'
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* file.txt
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*
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* # find t z -name '*t*' -print -o -name '*z*'
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* t
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* # find t z t z -name '*t*' -o -name '*z*' -print
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* z
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* z
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* # find t z t z '(' -name '*t*' -o -name '*z*' ')' -o -print
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* (no output)
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*/
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/* Testing script
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* ./busybox find "$@" | tee /tmp/bb_find
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* echo ==================
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* /path/to/gnu/find "$@" | tee /tmp/std_find
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* echo ==================
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* diff -u /tmp/std_find /tmp/bb_find && echo Identical
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*/
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//config:config FIND
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//config: bool "find (14 kb)"
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//config: default y
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//config: help
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//config: find is used to search your system to find specified files.
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//config:
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//config:config FEATURE_FIND_PRINT0
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//config: bool "Enable -print0: NUL-terminated output"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Causes output names to be separated by a NUL character
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//config: rather than a newline. This allows names that contain
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//config: newlines and other whitespace to be more easily
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//config: interpreted by other programs.
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//config:
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//config:config FEATURE_FIND_MTIME
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//config: bool "Enable -mtime: modified time matching"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Allow searching based on the modification time of
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//config: files, in days.
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//config:
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//config:config FEATURE_FIND_MMIN
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//config: bool "Enable -mmin: modified time matching by minutes"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Allow searching based on the modification time of
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//config: files, in minutes.
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//config:
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//config:config FEATURE_FIND_PERM
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//config: bool "Enable -perm: permissions matching"
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//config: default y
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//config: depends on FIND
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//config:
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//config:config FEATURE_FIND_TYPE
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//config: bool "Enable -type: file type matching (file/dir/link/...)"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Enable searching based on file type (file,
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//config: directory, socket, device, etc.).
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//config:
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//config:config FEATURE_FIND_XDEV
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//config: bool "Enable -xdev: 'stay in filesystem'"
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//config: default y
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//config: depends on FIND
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//config:
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//config:config FEATURE_FIND_MAXDEPTH
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//config: bool "Enable -mindepth N and -maxdepth N"
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//config: default y
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//config: depends on FIND
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//config:
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//config:config FEATURE_FIND_NEWER
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//config: bool "Enable -newer: compare file modification times"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Support the 'find -newer' option for finding any files which have
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//config: modification time that is more recent than the specified FILE.
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//config:
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//config:config FEATURE_FIND_INUM
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//config: bool "Enable -inum: inode number matching"
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//config: default y
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//config: depends on FIND
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//config:
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//config:config FEATURE_FIND_EXEC
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//config: bool "Enable -exec: execute commands"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Support the 'find -exec' option for executing commands based upon
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//config: the files matched.
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//config:
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//config:config FEATURE_FIND_EXEC_PLUS
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//config: bool "Enable -exec ... {} +"
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//config: default y
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//config: depends on FEATURE_FIND_EXEC
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//config: help
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//config: Support the 'find -exec ... {} +' option for executing commands
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//config: for all matched files at once.
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//config: Without this option, -exec + is a synonym for -exec ;
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//config: (IOW: it works correctly, but without expected speedup)
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//config:
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//config:config FEATURE_FIND_USER
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//config: bool "Enable -user: username/uid matching"
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//config: default y
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//config: depends on FIND
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//config:
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//config:config FEATURE_FIND_GROUP
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//config: bool "Enable -group: group/gid matching"
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//config: default y
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//config: depends on FIND
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//config:
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//config:config FEATURE_FIND_NOT
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//config: bool "Enable the 'not' (!) operator"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Support the '!' operator to invert the test results.
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//config: If 'Enable full-blown desktop' is enabled, then will also support
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//config: the non-POSIX notation '-not'.
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//config:
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//config:config FEATURE_FIND_DEPTH
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//config: bool "Enable -depth"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Process each directory's contents before the directory itself.
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//config:
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//config:config FEATURE_FIND_PAREN
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//config: bool "Enable parens in options"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Enable usage of parens '(' to specify logical order of arguments.
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//config:
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//config:config FEATURE_FIND_SIZE
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//config: bool "Enable -size: file size matching"
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//config: default y
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//config: depends on FIND
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//config:
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//config:config FEATURE_FIND_PRUNE
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//config: bool "Enable -prune: exclude subdirectories"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: If the file is a directory, don't descend into it. Useful for
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//config: exclusion .svn and CVS directories.
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//config:
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//config:config FEATURE_FIND_DELETE
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//config: bool "Enable -delete: delete files/dirs"
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//config: default y
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//config: depends on FIND && FEATURE_FIND_DEPTH
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//config: help
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//config: Support the 'find -delete' option for deleting files and directories.
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//config: WARNING: This option can do much harm if used wrong. Busybox will not
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//config: try to protect the user from doing stupid things. Use with care.
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//config:
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//config:config FEATURE_FIND_PATH
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//config: bool "Enable -path: match pathname with shell pattern"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: The -path option matches whole pathname instead of just filename.
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//config:
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//config:config FEATURE_FIND_REGEX
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//config: bool "Enable -regex: match pathname with regex"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: The -regex option matches whole pathname against regular expression.
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//config:
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//config:config FEATURE_FIND_CONTEXT
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//config: bool "Enable -context: security context matching"
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//config: default n
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//config: depends on FIND && SELINUX
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//config: help
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//config: Support the 'find -context' option for matching security context.
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//config:
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//config:config FEATURE_FIND_LINKS
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//config: bool "Enable -links: link count matching"
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//config: default y
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//config: depends on FIND
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//config: help
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//config: Support the 'find -links' option for matching number of links.
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//applet:IF_FIND(APPLET_NOEXEC(find, find, BB_DIR_USR_BIN, BB_SUID_DROP, find))
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//kbuild:lib-$(CONFIG_FIND) += find.o
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//usage:#define find_trivial_usage
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//usage: "[-HL] [PATH]... [OPTIONS] [ACTIONS]"
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//usage:#define find_full_usage "\n\n"
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//usage: "Search for files and perform actions on them.\n"
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//usage: "First failed action stops processing of current file.\n"
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//usage: "Defaults: PATH is current directory, action is '-print'\n"
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//usage: "\n -L,-follow Follow symlinks"
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//usage: "\n -H ...on command line only"
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//usage: IF_FEATURE_FIND_XDEV(
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//usage: "\n -xdev Don't descend directories on other filesystems"
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//usage: )
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//usage: IF_FEATURE_FIND_MAXDEPTH(
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//usage: "\n -maxdepth N Descend at most N levels. -maxdepth 0 applies"
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//usage: "\n actions to command line arguments only"
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//usage: "\n -mindepth N Don't act on first N levels"
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//usage: )
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//usage: IF_FEATURE_FIND_DEPTH(
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//usage: "\n -depth Act on directory *after* traversing it"
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//usage: )
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//usage: "\n"
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//usage: "\nActions:"
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//usage: IF_FEATURE_FIND_PAREN(
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//usage: "\n ( ACTIONS ) Group actions for -o / -a"
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//usage: )
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//usage: IF_FEATURE_FIND_NOT(
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//usage: "\n ! ACT Invert ACT's success/failure"
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//usage: )
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//usage: "\n ACT1 [-a] ACT2 If ACT1 fails, stop, else do ACT2"
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//usage: "\n ACT1 -o ACT2 If ACT1 succeeds, stop, else do ACT2"
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//usage: "\n Note: -a has higher priority than -o"
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//usage: "\n -name PATTERN Match file name (w/o directory name) to PATTERN"
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//usage: "\n -iname PATTERN Case insensitive -name"
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//usage: IF_FEATURE_FIND_PATH(
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//usage: "\n -path PATTERN Match path to PATTERN"
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//usage: "\n -ipath PATTERN Case insensitive -path"
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//usage: )
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//usage: IF_FEATURE_FIND_REGEX(
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//usage: "\n -regex PATTERN Match path to regex PATTERN"
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//usage: )
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//usage: IF_FEATURE_FIND_TYPE(
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//usage: "\n -type X File type is X (one of: f,d,l,b,c,...)"
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//usage: )
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//usage: IF_FEATURE_FIND_PERM(
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//usage: "\n -perm MASK At least one mask bit (+MASK), all bits (-MASK),"
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//usage: "\n or exactly MASK bits are set in file's mode"
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//usage: )
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//usage: IF_FEATURE_FIND_MTIME(
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//usage: "\n -mtime DAYS mtime is greater than (+N), less than (-N),"
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//usage: "\n or exactly N days in the past"
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//usage: )
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//usage: IF_FEATURE_FIND_MMIN(
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//usage: "\n -mmin MINS mtime is greater than (+N), less than (-N),"
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//usage: "\n or exactly N minutes in the past"
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//usage: )
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//usage: IF_FEATURE_FIND_NEWER(
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//usage: "\n -newer FILE mtime is more recent than FILE's"
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//usage: )
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//usage: IF_FEATURE_FIND_INUM(
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//usage: "\n -inum N File has inode number N"
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//usage: )
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//usage: IF_FEATURE_FIND_USER(
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//usage: "\n -user NAME/ID File is owned by given user"
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//usage: )
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//usage: IF_FEATURE_FIND_GROUP(
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//usage: "\n -group NAME/ID File is owned by given group"
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//usage: )
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//usage: IF_FEATURE_FIND_SIZE(
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//usage: "\n -size N[bck] File size is N (c:bytes,k:kbytes,b:512 bytes(def.))"
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//usage: "\n +/-N: file size is bigger/smaller than N"
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//usage: )
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//usage: IF_FEATURE_FIND_LINKS(
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//usage: "\n -links N Number of links is greater than (+N), less than (-N),"
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//usage: "\n or exactly N"
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//usage: )
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//usage: IF_FEATURE_FIND_CONTEXT(
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//usage: "\n -context CTX File has specified security context"
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//usage: )
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//usage: IF_FEATURE_FIND_PRUNE(
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//usage: "\n -prune If current file is directory, don't descend into it"
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//usage: )
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//usage: "\nIf none of the following actions is specified, -print is assumed"
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//usage: "\n -print Print file name"
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//usage: IF_FEATURE_FIND_PRINT0(
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//usage: "\n -print0 Print file name, NUL terminated"
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//usage: )
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//usage: IF_FEATURE_FIND_EXEC(
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//usage: "\n -exec CMD ARG ; Run CMD with all instances of {} replaced by"
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//usage: "\n file name. Fails if CMD exits with nonzero"
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//usage: )
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//usage: IF_FEATURE_FIND_EXEC_PLUS(
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//usage: "\n -exec CMD ARG + Run CMD with {} replaced by list of file names"
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//usage: )
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//usage: IF_FEATURE_FIND_DELETE(
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//usage: "\n -delete Delete current file/directory. Turns on -depth option"
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//usage: )
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//usage:
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//usage:#define find_example_usage
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//usage: "$ find / -name passwd\n"
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//usage: "/etc/passwd\n"
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#include <fnmatch.h>
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#include "libbb.h"
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#include "common_bufsiz.h"
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#if ENABLE_FEATURE_FIND_REGEX
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# include "xregex.h"
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#endif
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/* GNUism: */
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#ifndef FNM_CASEFOLD
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# define FNM_CASEFOLD 0
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#endif
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#if 1
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# define dbg(...) ((void)0)
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#else
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# define dbg(...) bb_error_msg(__VA_ARGS__)
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#endif
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/* This is a NOEXEC applet. Be very careful! */
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typedef int (*action_fp)(const char *fileName, const struct stat *statbuf, void *) FAST_FUNC;
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typedef struct {
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action_fp f;
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#if ENABLE_FEATURE_FIND_NOT
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bool invert;
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#endif
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} action;
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#define ACTS(name, ...) typedef struct { action a; __VA_ARGS__ } action_##name;
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#define ACTF(name) \
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static int FAST_FUNC func_##name(const char *fileName UNUSED_PARAM, \
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const struct stat *statbuf UNUSED_PARAM, \
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action_##name* ap UNUSED_PARAM)
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ACTS(print)
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ACTS(name, const char *pattern; bool iname;)
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IF_FEATURE_FIND_PATH( ACTS(path, const char *pattern; bool ipath;))
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IF_FEATURE_FIND_REGEX( ACTS(regex, regex_t compiled_pattern;))
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IF_FEATURE_FIND_PRINT0( ACTS(print0))
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IF_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
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IF_FEATURE_FIND_PERM( ACTS(perm, char perm_char; mode_t perm_mask;))
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IF_FEATURE_FIND_MTIME( ACTS(mtime, char mtime_char; unsigned mtime_days;))
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IF_FEATURE_FIND_MMIN( ACTS(mmin, char mmin_char; unsigned mmin_mins;))
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IF_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
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IF_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
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IF_FEATURE_FIND_USER( ACTS(user, uid_t uid;))
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IF_FEATURE_FIND_SIZE( ACTS(size, char size_char; off_t size;))
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IF_FEATURE_FIND_CONTEXT(ACTS(context, security_context_t context;))
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IF_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
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IF_FEATURE_FIND_PRUNE( ACTS(prune))
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IF_FEATURE_FIND_DELETE( ACTS(delete))
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IF_FEATURE_FIND_EXEC( ACTS(exec,
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char **exec_argv; /* -exec ARGS */
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unsigned *subst_count;
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int exec_argc; /* count of ARGS */
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IF_FEATURE_FIND_EXEC_PLUS(
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/*
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* filelist is NULL if "exec ;"
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* non-NULL if "exec +"
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*/
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char **filelist;
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int filelist_idx;
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int file_len;
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)
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))
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IF_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;))
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IF_FEATURE_FIND_LINKS( ACTS(links, char links_char; int links_count;))
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struct globals {
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IF_FEATURE_FIND_XDEV(dev_t *xdev_dev;)
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IF_FEATURE_FIND_XDEV(int xdev_count;)
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#if ENABLE_FEATURE_FIND_MAXDEPTH
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int minmaxdepth[2];
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#endif
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action ***actions;
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smallint need_print;
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smallint xdev_on;
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recurse_flags_t recurse_flags;
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IF_FEATURE_FIND_EXEC_PLUS(unsigned max_argv_len;)
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} FIX_ALIASING;
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#define G (*(struct globals*)bb_common_bufsiz1)
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#define INIT_G() do { \
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setup_common_bufsiz(); \
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BUILD_BUG_ON(sizeof(G) > COMMON_BUFSIZE); \
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/* we have to zero it out because of NOEXEC */ \
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memset(&G, 0, sizeof(G)); \
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IF_FEATURE_FIND_MAXDEPTH(G.minmaxdepth[1] = INT_MAX;) \
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IF_FEATURE_FIND_EXEC_PLUS(G.max_argv_len = bb_arg_max() - 2048;) \
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G.need_print = 1; \
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G.recurse_flags = ACTION_RECURSE; \
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} while (0)
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/* Return values of ACTFs ('action functions') are a bit mask:
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* bit 1=1: prune (use SKIP constant for setting it)
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* bit 0=1: matched successfully (TRUE)
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*/
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static int exec_actions(action ***appp, const char *fileName, const struct stat *statbuf)
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{
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int cur_group;
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int cur_action;
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int rc = 0;
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action **app, *ap;
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/* "action group" is a set of actions ANDed together.
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* groups are ORed together.
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* We simply evaluate each group until we find one in which all actions
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* succeed. */
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/* -prune is special: if it is encountered, then we won't
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* descend into current directory. It doesn't matter whether
|
|
* action group (in which -prune sits) will succeed or not:
|
|
* find * -prune -name 'f*' -o -name 'm*' -- prunes every dir
|
|
* find * -name 'f*' -o -prune -name 'm*' -- prunes all dirs
|
|
* not starting with 'f' */
|
|
|
|
/* We invert TRUE bit (bit 0). Now 1 there means 'failure'.
|
|
* and bitwise OR in "rc |= TRUE ^ ap->f()" will:
|
|
* (1) make SKIP (-prune) bit stick; and (2) detect 'failure'.
|
|
* On return, bit is restored. */
|
|
|
|
cur_group = -1;
|
|
while ((app = appp[++cur_group]) != NULL) {
|
|
rc &= ~TRUE; /* 'success' so far, clear TRUE bit */
|
|
cur_action = -1;
|
|
while (1) {
|
|
ap = app[++cur_action];
|
|
if (!ap) /* all actions in group were successful */
|
|
return rc ^ TRUE; /* restore TRUE bit */
|
|
rc |= TRUE ^ ap->f(fileName, statbuf, ap);
|
|
#if ENABLE_FEATURE_FIND_NOT
|
|
if (ap->invert) rc ^= TRUE;
|
|
#endif
|
|
dbg("grp %d action %d rc:0x%x", cur_group, cur_action, rc);
|
|
if (rc & TRUE) /* current group failed, try next */
|
|
break;
|
|
}
|
|
}
|
|
dbg("returning:0x%x", rc ^ TRUE);
|
|
return rc ^ TRUE; /* restore TRUE bit */
|
|
}
|
|
|
|
#if !FNM_CASEFOLD
|
|
static char *strcpy_upcase(char *dst, const char *src)
|
|
{
|
|
char *d = dst;
|
|
while (1) {
|
|
unsigned char ch = *src++;
|
|
if (ch >= 'a' && ch <= 'z')
|
|
ch -= ('a' - 'A');
|
|
*d++ = ch;
|
|
if (ch == '\0')
|
|
break;
|
|
}
|
|
return dst;
|
|
}
|
|
#endif
|
|
|
|
ACTF(name)
|
|
{
|
|
int r;
|
|
const char *tmp = bb_basename(fileName);
|
|
/* GNU findutils: find DIR/ -name DIR
|
|
* prints "DIR/" (DIR// prints "DIR//" etc).
|
|
* Need to strip trailing "/".
|
|
* Such names can come only from top-level names, but
|
|
* we can't do this before recursive_action() call,
|
|
* since then "find FILE/ -name FILE"
|
|
* would also work (on non-directories), which is wrong.
|
|
*/
|
|
char *trunc_slash = NULL;
|
|
|
|
if (*tmp == '\0') {
|
|
/* "foo/bar/[//...]" */
|
|
while (tmp != fileName && tmp[-1] == '/')
|
|
tmp--;
|
|
if (tmp == fileName) { /* entire fileName is "//.."? */
|
|
/* yes, convert "//..." to "/"
|
|
* Testcases:
|
|
* find / -maxdepth 1 -name /: prints /
|
|
* find // -maxdepth 1 -name /: prints //
|
|
* find / -maxdepth 1 -name //: prints nothing
|
|
* find // -maxdepth 1 -name //: prints nothing
|
|
*/
|
|
if (tmp[1])
|
|
trunc_slash = (char*)tmp + 1;
|
|
} else {
|
|
/* no, it's "foo/bar/[//...]", go back to 'b' */
|
|
trunc_slash = (char*)tmp;
|
|
while (tmp != fileName && tmp[-1] != '/')
|
|
tmp--;
|
|
}
|
|
}
|
|
|
|
/* Was using FNM_PERIOD flag too,
|
|
* but somewhere between 4.1.20 and 4.4.0 GNU find stopped using it.
|
|
* find -name '*foo' should match .foo too:
|
|
*/
|
|
if (trunc_slash) *trunc_slash = '\0';
|
|
#if FNM_CASEFOLD
|
|
r = fnmatch(ap->pattern, tmp, (ap->iname ? FNM_CASEFOLD : 0));
|
|
#else
|
|
if (ap->iname)
|
|
tmp = strcpy_upcase(alloca(strlen(tmp) + 1), tmp);
|
|
r = fnmatch(ap->pattern, tmp, 0);
|
|
#endif
|
|
if (trunc_slash) *trunc_slash = '/';
|
|
return r == 0;
|
|
}
|
|
|
|
#if ENABLE_FEATURE_FIND_PATH
|
|
ACTF(path)
|
|
{
|
|
# if FNM_CASEFOLD
|
|
return fnmatch(ap->pattern, fileName, (ap->ipath ? FNM_CASEFOLD : 0)) == 0;
|
|
# else
|
|
if (ap->ipath)
|
|
fileName = strcpy_upcase(alloca(strlen(fileName) + 1), fileName);
|
|
return fnmatch(ap->pattern, fileName, 0) == 0;
|
|
# endif
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_REGEX
|
|
ACTF(regex)
|
|
{
|
|
regmatch_t match;
|
|
if (regexec(&ap->compiled_pattern, fileName, 1, &match, 0 /*eflags*/))
|
|
return 0; /* no match */
|
|
if (match.rm_so)
|
|
return 0; /* match doesn't start at pos 0 */
|
|
if (fileName[match.rm_eo])
|
|
return 0; /* match doesn't end exactly at end of pathname */
|
|
return 1;
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_TYPE
|
|
ACTF(type)
|
|
{
|
|
return ((statbuf->st_mode & S_IFMT) == ap->type_mask);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_PERM
|
|
ACTF(perm)
|
|
{
|
|
/* -perm [+/]mode: at least one of perm_mask bits are set */
|
|
if (ap->perm_char == '+' || ap->perm_char == '/')
|
|
return (statbuf->st_mode & ap->perm_mask) != 0;
|
|
/* -perm -mode: all of perm_mask are set */
|
|
if (ap->perm_char == '-')
|
|
return (statbuf->st_mode & ap->perm_mask) == ap->perm_mask;
|
|
/* -perm mode: file mode must match perm_mask */
|
|
return (statbuf->st_mode & 07777) == ap->perm_mask;
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_MTIME
|
|
ACTF(mtime)
|
|
{
|
|
time_t file_age = time(NULL) - statbuf->st_mtime;
|
|
time_t mtime_secs = ap->mtime_days * 24*60*60;
|
|
if (ap->mtime_char == '+')
|
|
return file_age >= mtime_secs + 24*60*60;
|
|
if (ap->mtime_char == '-')
|
|
return file_age < mtime_secs;
|
|
/* just numeric mtime */
|
|
return file_age >= mtime_secs && file_age < (mtime_secs + 24*60*60);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_MMIN
|
|
ACTF(mmin)
|
|
{
|
|
time_t file_age = time(NULL) - statbuf->st_mtime;
|
|
time_t mmin_secs = ap->mmin_mins * 60;
|
|
if (ap->mmin_char == '+')
|
|
return file_age >= mmin_secs + 60;
|
|
if (ap->mmin_char == '-')
|
|
return file_age < mmin_secs;
|
|
/* just numeric mmin */
|
|
return file_age >= mmin_secs && file_age < (mmin_secs + 60);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_NEWER
|
|
ACTF(newer)
|
|
{
|
|
return (ap->newer_mtime < statbuf->st_mtime);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_INUM
|
|
ACTF(inum)
|
|
{
|
|
return (statbuf->st_ino == ap->inode_num);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_EXEC
|
|
static int do_exec(action_exec *ap, const char *fileName)
|
|
{
|
|
int i, rc;
|
|
# if ENABLE_FEATURE_FIND_EXEC_PLUS
|
|
int size = ap->exec_argc + ap->filelist_idx + 1;
|
|
# else
|
|
int size = ap->exec_argc + 1;
|
|
# endif
|
|
# if ENABLE_USE_PORTABLE_CODE
|
|
char **argv = alloca(sizeof(char*) * size);
|
|
# else /* gcc 4.3.1 generates smaller code: */
|
|
char *argv[size];
|
|
# endif
|
|
char **pp = argv;
|
|
|
|
for (i = 0; i < ap->exec_argc; i++) {
|
|
const char *arg = ap->exec_argv[i];
|
|
|
|
# if ENABLE_FEATURE_FIND_EXEC_PLUS
|
|
if (ap->filelist) {
|
|
/* Handling "-exec +"
|
|
* Only one exec_argv[i] has substitution in it.
|
|
* Expand that one exec_argv[i] into file list.
|
|
*/
|
|
if (ap->subst_count[i] == 0) {
|
|
*pp++ = xstrdup(arg);
|
|
} else {
|
|
int j = 0;
|
|
while (ap->filelist[j]) {
|
|
/* 2nd arg here should be ap->subst_count[i], but it is always 1: */
|
|
*pp++ = xmalloc_substitute_string(arg, 1, "{}", ap->filelist[j]);
|
|
free(ap->filelist[j]);
|
|
j++;
|
|
}
|
|
}
|
|
} else
|
|
# endif
|
|
{
|
|
/* Handling "-exec ;" */
|
|
*pp++ = xmalloc_substitute_string(arg, ap->subst_count[i], "{}", fileName);
|
|
}
|
|
}
|
|
*pp = NULL; /* terminate the list */
|
|
|
|
# if ENABLE_FEATURE_FIND_EXEC_PLUS
|
|
if (ap->filelist) {
|
|
ap->filelist[0] = NULL;
|
|
ap->filelist_idx = 0;
|
|
ap->file_len = 0;
|
|
}
|
|
# endif
|
|
|
|
rc = spawn_and_wait(argv);
|
|
if (rc < 0)
|
|
bb_simple_perror_msg(argv[0]);
|
|
|
|
i = 0;
|
|
while (argv[i])
|
|
free(argv[i++]);
|
|
return rc == 0; /* return 1 if exitcode 0 */
|
|
}
|
|
ACTF(exec)
|
|
{
|
|
# if ENABLE_FEATURE_FIND_EXEC_PLUS
|
|
if (ap->filelist) {
|
|
int rc;
|
|
|
|
ap->filelist = xrealloc_vector(ap->filelist, 8, ap->filelist_idx);
|
|
ap->filelist[ap->filelist_idx++] = xstrdup(fileName);
|
|
ap->file_len += strlen(fileName) + sizeof(char*) + 1;
|
|
/* If we have lots of files already, exec the command */
|
|
rc = 1;
|
|
if (ap->file_len >= G.max_argv_len)
|
|
rc = do_exec(ap, NULL);
|
|
return rc;
|
|
}
|
|
# endif
|
|
return do_exec(ap, fileName);
|
|
}
|
|
# if ENABLE_FEATURE_FIND_EXEC_PLUS
|
|
static int flush_exec_plus(void)
|
|
{
|
|
action *ap;
|
|
action **app;
|
|
action ***appp = G.actions;
|
|
while ((app = *appp++) != NULL) {
|
|
while ((ap = *app++) != NULL) {
|
|
if (ap->f == (action_fp)func_exec) {
|
|
action_exec *ae = (void*)ap;
|
|
if (ae->filelist_idx != 0) {
|
|
int rc = do_exec(ae, NULL);
|
|
# if ENABLE_FEATURE_FIND_NOT
|
|
if (ap->invert) rc = !rc;
|
|
# endif
|
|
if (rc == 0)
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
# endif
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_USER
|
|
ACTF(user)
|
|
{
|
|
return (statbuf->st_uid == ap->uid);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_GROUP
|
|
ACTF(group)
|
|
{
|
|
return (statbuf->st_gid == ap->gid);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_PRINT0
|
|
ACTF(print0)
|
|
{
|
|
printf("%s%c", fileName, '\0');
|
|
return TRUE;
|
|
}
|
|
#endif
|
|
ACTF(print)
|
|
{
|
|
puts(fileName);
|
|
return TRUE;
|
|
}
|
|
#if ENABLE_FEATURE_FIND_PAREN
|
|
ACTF(paren)
|
|
{
|
|
return exec_actions(ap->subexpr, fileName, statbuf);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_SIZE
|
|
ACTF(size)
|
|
{
|
|
if (ap->size_char == '+')
|
|
return statbuf->st_size > ap->size;
|
|
if (ap->size_char == '-')
|
|
return statbuf->st_size < ap->size;
|
|
return statbuf->st_size == ap->size;
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_PRUNE
|
|
/*
|
|
* -prune: if -depth is not given, return true and do not descend
|
|
* current dir; if -depth is given, return false with no effect.
|
|
* Example:
|
|
* find dir -name 'asm-*' -prune -o -name '*.[chS]' -print
|
|
*/
|
|
ACTF(prune)
|
|
{
|
|
return SKIP + TRUE;
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_DELETE
|
|
ACTF(delete)
|
|
{
|
|
int rc;
|
|
if (S_ISDIR(statbuf->st_mode)) {
|
|
/* "find . -delete" skips rmdir(".") */
|
|
rc = 0;
|
|
if (NOT_LONE_CHAR(fileName, '.'))
|
|
rc = rmdir(fileName);
|
|
} else {
|
|
rc = unlink(fileName);
|
|
}
|
|
if (rc < 0)
|
|
bb_simple_perror_msg(fileName);
|
|
return TRUE;
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_CONTEXT
|
|
ACTF(context)
|
|
{
|
|
security_context_t con;
|
|
int rc;
|
|
|
|
if (G.recurse_flags & ACTION_FOLLOWLINKS) {
|
|
rc = getfilecon(fileName, &con);
|
|
} else {
|
|
rc = lgetfilecon(fileName, &con);
|
|
}
|
|
if (rc < 0)
|
|
return FALSE;
|
|
rc = strcmp(ap->context, con);
|
|
freecon(con);
|
|
return rc == 0;
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_LINKS
|
|
ACTF(links)
|
|
{
|
|
switch(ap->links_char) {
|
|
case '-' : return (statbuf->st_nlink < ap->links_count);
|
|
case '+' : return (statbuf->st_nlink > ap->links_count);
|
|
default: return (statbuf->st_nlink == ap->links_count);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static int FAST_FUNC fileAction(const char *fileName,
|
|
struct stat *statbuf,
|
|
void *userData UNUSED_PARAM,
|
|
int depth IF_NOT_FEATURE_FIND_MAXDEPTH(UNUSED_PARAM))
|
|
{
|
|
int r;
|
|
int same_fs = 1;
|
|
|
|
#if ENABLE_FEATURE_FIND_XDEV
|
|
if (S_ISDIR(statbuf->st_mode) && G.xdev_count) {
|
|
int i;
|
|
for (i = 0; i < G.xdev_count; i++) {
|
|
if (G.xdev_dev[i] == statbuf->st_dev)
|
|
goto found;
|
|
}
|
|
//bb_error_msg("'%s': not same fs", fileName);
|
|
same_fs = 0;
|
|
found: ;
|
|
}
|
|
#endif
|
|
|
|
#if ENABLE_FEATURE_FIND_MAXDEPTH
|
|
if (depth < G.minmaxdepth[0]) {
|
|
if (same_fs)
|
|
return TRUE; /* skip this, continue recursing */
|
|
return SKIP; /* stop recursing */
|
|
}
|
|
if (depth > G.minmaxdepth[1])
|
|
return SKIP; /* stop recursing */
|
|
#endif
|
|
|
|
r = exec_actions(G.actions, fileName, statbuf);
|
|
/* Had no explicit -print[0] or -exec? then print */
|
|
if ((r & TRUE) && G.need_print)
|
|
puts(fileName);
|
|
|
|
#if ENABLE_FEATURE_FIND_MAXDEPTH
|
|
if (S_ISDIR(statbuf->st_mode)) {
|
|
if (depth == G.minmaxdepth[1])
|
|
return SKIP;
|
|
}
|
|
#endif
|
|
/* -xdev stops on mountpoints, but AFTER mountpoit itself
|
|
* is processed as usual */
|
|
if (!same_fs) {
|
|
return SKIP;
|
|
}
|
|
|
|
/* Cannot return 0: our caller, recursive_action(),
|
|
* will perror() and skip dirs (if called on dir) */
|
|
return (r & SKIP) ? SKIP : TRUE;
|
|
}
|
|
|
|
|
|
#if ENABLE_FEATURE_FIND_TYPE
|
|
static int find_type(const char *type)
|
|
{
|
|
int mask = 0;
|
|
|
|
if (*type == 'b')
|
|
mask = S_IFBLK;
|
|
else if (*type == 'c')
|
|
mask = S_IFCHR;
|
|
else if (*type == 'd')
|
|
mask = S_IFDIR;
|
|
else if (*type == 'p')
|
|
mask = S_IFIFO;
|
|
else if (*type == 'f')
|
|
mask = S_IFREG;
|
|
else if (*type == 'l')
|
|
mask = S_IFLNK;
|
|
else if (*type == 's')
|
|
mask = S_IFSOCK;
|
|
|
|
if (mask == 0 || type[1] != '\0')
|
|
bb_error_msg_and_die(bb_msg_invalid_arg_to, type, "-type");
|
|
|
|
return mask;
|
|
}
|
|
#endif
|
|
|
|
#if ENABLE_FEATURE_FIND_PERM \
|
|
|| ENABLE_FEATURE_FIND_MTIME || ENABLE_FEATURE_FIND_MMIN \
|
|
|| ENABLE_FEATURE_FIND_SIZE || ENABLE_FEATURE_FIND_LINKS
|
|
static const char* plus_minus_num(const char* str)
|
|
{
|
|
if (*str == '-' || *str == '+')
|
|
str++;
|
|
return str;
|
|
}
|
|
#endif
|
|
|
|
/* Say no to GCCism */
|
|
#define USE_NESTED_FUNCTION 0
|
|
|
|
#if !USE_NESTED_FUNCTION
|
|
struct pp_locals {
|
|
action*** appp;
|
|
unsigned cur_group;
|
|
unsigned cur_action;
|
|
IF_FEATURE_FIND_NOT( bool invert_flag; )
|
|
};
|
|
static action* alloc_action(struct pp_locals *ppl, int sizeof_struct, action_fp f)
|
|
{
|
|
action *ap = xzalloc(sizeof_struct);
|
|
action **app;
|
|
action ***group = &ppl->appp[ppl->cur_group];
|
|
*group = app = xrealloc(*group, (ppl->cur_action+2) * sizeof(ppl->appp[0][0]));
|
|
app[ppl->cur_action++] = ap;
|
|
app[ppl->cur_action] = NULL;
|
|
ap->f = f;
|
|
IF_FEATURE_FIND_NOT( ap->invert = ppl->invert_flag; )
|
|
IF_FEATURE_FIND_NOT( ppl->invert_flag = 0; )
|
|
return ap;
|
|
}
|
|
#endif
|
|
|
|
static action*** parse_params(char **argv)
|
|
{
|
|
enum {
|
|
OPT_FOLLOW ,
|
|
IF_FEATURE_FIND_XDEV( OPT_XDEV ,)
|
|
IF_FEATURE_FIND_DEPTH( OPT_DEPTH ,)
|
|
PARM_a ,
|
|
PARM_o ,
|
|
IF_FEATURE_FIND_NOT( PARM_char_not ,)
|
|
#if ENABLE_DESKTOP
|
|
PARM_and ,
|
|
PARM_or ,
|
|
IF_FEATURE_FIND_NOT( PARM_not ,)
|
|
#endif
|
|
PARM_print ,
|
|
IF_FEATURE_FIND_PRINT0( PARM_print0 ,)
|
|
IF_FEATURE_FIND_PRUNE( PARM_prune ,)
|
|
IF_FEATURE_FIND_DELETE( PARM_delete ,)
|
|
IF_FEATURE_FIND_EXEC( PARM_exec ,)
|
|
IF_FEATURE_FIND_PAREN( PARM_char_brace,)
|
|
/* All options/actions starting from here require argument */
|
|
PARM_name ,
|
|
PARM_iname ,
|
|
IF_FEATURE_FIND_PATH( PARM_path ,)
|
|
#if ENABLE_DESKTOP
|
|
/* -wholename is a synonym for -path */
|
|
/* We support it because Linux kernel's "make tags" uses it */
|
|
IF_FEATURE_FIND_PATH( PARM_wholename ,)
|
|
#endif
|
|
IF_FEATURE_FIND_PATH( PARM_ipath ,)
|
|
IF_FEATURE_FIND_REGEX( PARM_regex ,)
|
|
IF_FEATURE_FIND_TYPE( PARM_type ,)
|
|
IF_FEATURE_FIND_PERM( PARM_perm ,)
|
|
IF_FEATURE_FIND_MTIME( PARM_mtime ,)
|
|
IF_FEATURE_FIND_MMIN( PARM_mmin ,)
|
|
IF_FEATURE_FIND_NEWER( PARM_newer ,)
|
|
IF_FEATURE_FIND_INUM( PARM_inum ,)
|
|
IF_FEATURE_FIND_USER( PARM_user ,)
|
|
IF_FEATURE_FIND_GROUP( PARM_group ,)
|
|
IF_FEATURE_FIND_SIZE( PARM_size ,)
|
|
IF_FEATURE_FIND_CONTEXT(PARM_context ,)
|
|
IF_FEATURE_FIND_LINKS( PARM_links ,)
|
|
IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,OPT_MAXDEPTH,)
|
|
};
|
|
|
|
static const char params[] ALIGN1 =
|
|
"-follow\0"
|
|
IF_FEATURE_FIND_XDEV( "-xdev\0" )
|
|
IF_FEATURE_FIND_DEPTH( "-depth\0" )
|
|
"-a\0"
|
|
"-o\0"
|
|
IF_FEATURE_FIND_NOT( "!\0" )
|
|
#if ENABLE_DESKTOP
|
|
"-and\0"
|
|
"-or\0"
|
|
IF_FEATURE_FIND_NOT( "-not\0" )
|
|
#endif
|
|
"-print\0"
|
|
IF_FEATURE_FIND_PRINT0( "-print0\0" )
|
|
IF_FEATURE_FIND_PRUNE( "-prune\0" )
|
|
IF_FEATURE_FIND_DELETE( "-delete\0" )
|
|
IF_FEATURE_FIND_EXEC( "-exec\0" )
|
|
IF_FEATURE_FIND_PAREN( "(\0" )
|
|
/* All options/actions starting from here require argument */
|
|
"-name\0"
|
|
"-iname\0"
|
|
IF_FEATURE_FIND_PATH( "-path\0" )
|
|
#if ENABLE_DESKTOP
|
|
IF_FEATURE_FIND_PATH( "-wholename\0")
|
|
#endif
|
|
IF_FEATURE_FIND_PATH( "-ipath\0" )
|
|
IF_FEATURE_FIND_REGEX( "-regex\0" )
|
|
IF_FEATURE_FIND_TYPE( "-type\0" )
|
|
IF_FEATURE_FIND_PERM( "-perm\0" )
|
|
IF_FEATURE_FIND_MTIME( "-mtime\0" )
|
|
IF_FEATURE_FIND_MMIN( "-mmin\0" )
|
|
IF_FEATURE_FIND_NEWER( "-newer\0" )
|
|
IF_FEATURE_FIND_INUM( "-inum\0" )
|
|
IF_FEATURE_FIND_USER( "-user\0" )
|
|
IF_FEATURE_FIND_GROUP( "-group\0" )
|
|
IF_FEATURE_FIND_SIZE( "-size\0" )
|
|
IF_FEATURE_FIND_CONTEXT("-context\0")
|
|
IF_FEATURE_FIND_LINKS( "-links\0" )
|
|
IF_FEATURE_FIND_MAXDEPTH("-mindepth\0""-maxdepth\0")
|
|
;
|
|
|
|
#if !USE_NESTED_FUNCTION
|
|
struct pp_locals ppl;
|
|
#define appp (ppl.appp )
|
|
#define cur_group (ppl.cur_group )
|
|
#define cur_action (ppl.cur_action )
|
|
#define invert_flag (ppl.invert_flag)
|
|
#define ALLOC_ACTION(name) (action_##name*)alloc_action(&ppl, sizeof(action_##name), (action_fp) func_##name)
|
|
#else
|
|
action*** appp;
|
|
unsigned cur_group;
|
|
unsigned cur_action;
|
|
IF_FEATURE_FIND_NOT( bool invert_flag; )
|
|
|
|
/* This is the only place in busybox where we use nested function.
|
|
* So far more standard alternatives were bigger. */
|
|
/* Auto decl suppresses "func without a prototype" warning: */
|
|
auto action* alloc_action(int sizeof_struct, action_fp f);
|
|
action* alloc_action(int sizeof_struct, action_fp f)
|
|
{
|
|
action *ap;
|
|
appp[cur_group] = xrealloc(appp[cur_group], (cur_action+2) * sizeof(appp[0][0]));
|
|
appp[cur_group][cur_action++] = ap = xzalloc(sizeof_struct);
|
|
appp[cur_group][cur_action] = NULL;
|
|
ap->f = f;
|
|
IF_FEATURE_FIND_NOT( ap->invert = invert_flag; )
|
|
IF_FEATURE_FIND_NOT( invert_flag = 0; )
|
|
return ap;
|
|
}
|
|
#define ALLOC_ACTION(name) (action_##name*)alloc_action(sizeof(action_##name), (action_fp) func_##name)
|
|
#endif
|
|
|
|
cur_group = 0;
|
|
cur_action = 0;
|
|
IF_FEATURE_FIND_NOT( invert_flag = 0; )
|
|
appp = xzalloc(2 * sizeof(appp[0])); /* appp[0],[1] == NULL */
|
|
|
|
while (*argv) {
|
|
const char *arg = argv[0];
|
|
int parm = index_in_strings(params, arg);
|
|
const char *arg1 = argv[1];
|
|
|
|
dbg("arg:'%s' arg1:'%s' parm:%d PARM_type:%d", arg, arg1, parm, PARM_type);
|
|
|
|
if (parm >= PARM_name) {
|
|
/* All options/actions starting from -name require argument */
|
|
if (!arg1)
|
|
bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
|
argv++;
|
|
}
|
|
|
|
/* We can use big switch() here, but on i386
|
|
* it doesn't give smaller code. Other arches? */
|
|
|
|
/* Options always return true. They always take effect
|
|
* rather than being processed only when their place in the
|
|
* expression is reached.
|
|
*/
|
|
/* Options */
|
|
if (parm == OPT_FOLLOW) {
|
|
dbg("follow enabled: %d", __LINE__);
|
|
G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
|
|
}
|
|
#if ENABLE_FEATURE_FIND_XDEV
|
|
else if (parm == OPT_XDEV) {
|
|
dbg("%d", __LINE__);
|
|
G.xdev_on = 1;
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_MAXDEPTH
|
|
else if (parm == OPT_MINDEPTH || parm == OPT_MINDEPTH + 1) {
|
|
dbg("%d", __LINE__);
|
|
G.minmaxdepth[parm - OPT_MINDEPTH] = xatoi_positive(arg1);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_DEPTH
|
|
else if (parm == OPT_DEPTH) {
|
|
dbg("%d", __LINE__);
|
|
G.recurse_flags |= ACTION_DEPTHFIRST;
|
|
}
|
|
#endif
|
|
/* Actions are grouped by operators
|
|
* ( expr ) Force precedence
|
|
* ! expr True if expr is false
|
|
* -not expr Same as ! expr
|
|
* expr1 [-a[nd]] expr2 And; expr2 is not evaluated if expr1 is false
|
|
* expr1 -o[r] expr2 Or; expr2 is not evaluated if expr1 is true
|
|
* expr1 , expr2 List; both expr1 and expr2 are always evaluated
|
|
* We implement: (), -a, -o
|
|
*/
|
|
/* Operators */
|
|
else if (parm == PARM_a IF_DESKTOP(|| parm == PARM_and)) {
|
|
dbg("%d", __LINE__);
|
|
/* no further special handling required */
|
|
}
|
|
else if (parm == PARM_o IF_DESKTOP(|| parm == PARM_or)) {
|
|
dbg("%d", __LINE__);
|
|
/* start new OR group */
|
|
cur_group++;
|
|
appp = xrealloc(appp, (cur_group+2) * sizeof(appp[0]));
|
|
/*appp[cur_group] = NULL; - already NULL */
|
|
appp[cur_group+1] = NULL;
|
|
cur_action = 0;
|
|
}
|
|
#if ENABLE_FEATURE_FIND_NOT
|
|
else if (parm == PARM_char_not IF_DESKTOP(|| parm == PARM_not)) {
|
|
/* also handles "find ! ! -name 'foo*'" */
|
|
invert_flag ^= 1;
|
|
dbg("invert_flag:%d", invert_flag);
|
|
}
|
|
#endif
|
|
/* Actions */
|
|
else if (parm == PARM_print) {
|
|
dbg("%d", __LINE__);
|
|
G.need_print = 0;
|
|
(void) ALLOC_ACTION(print);
|
|
}
|
|
#if ENABLE_FEATURE_FIND_PRINT0
|
|
else if (parm == PARM_print0) {
|
|
dbg("%d", __LINE__);
|
|
G.need_print = 0;
|
|
(void) ALLOC_ACTION(print0);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_PRUNE
|
|
else if (parm == PARM_prune) {
|
|
dbg("%d", __LINE__);
|
|
(void) ALLOC_ACTION(prune);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_DELETE
|
|
else if (parm == PARM_delete) {
|
|
dbg("%d", __LINE__);
|
|
G.need_print = 0;
|
|
G.recurse_flags |= ACTION_DEPTHFIRST;
|
|
(void) ALLOC_ACTION(delete);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_EXEC
|
|
else if (parm == PARM_exec) {
|
|
int i;
|
|
action_exec *ap;
|
|
IF_FEATURE_FIND_EXEC_PLUS(int all_subst = 0;)
|
|
dbg("%d", __LINE__);
|
|
G.need_print = 0;
|
|
ap = ALLOC_ACTION(exec);
|
|
ap->exec_argv = ++argv; /* first arg after -exec */
|
|
/*ap->exec_argc = 0; - ALLOC_ACTION did it */
|
|
while (1) {
|
|
if (!*argv) /* did not see ';' or '+' until end */
|
|
bb_error_msg_and_die(bb_msg_requires_arg, "-exec");
|
|
// find -exec echo Foo ">{}<" ";"
|
|
// executes "echo Foo >FILENAME<",
|
|
// find -exec echo Foo ">{}<" "+"
|
|
// executes "echo Foo FILENAME1 FILENAME2 FILENAME3...".
|
|
if ((argv[0][0] == ';' || argv[0][0] == '+')
|
|
&& argv[0][1] == '\0'
|
|
) {
|
|
# if ENABLE_FEATURE_FIND_EXEC_PLUS
|
|
if (argv[0][0] == '+')
|
|
ap->filelist = xzalloc(sizeof(ap->filelist[0]));
|
|
# endif
|
|
break;
|
|
}
|
|
argv++;
|
|
ap->exec_argc++;
|
|
}
|
|
if (ap->exec_argc == 0)
|
|
bb_error_msg_and_die(bb_msg_requires_arg, arg);
|
|
ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
|
|
i = ap->exec_argc;
|
|
while (i--) {
|
|
ap->subst_count[i] = count_strstr(ap->exec_argv[i], "{}");
|
|
IF_FEATURE_FIND_EXEC_PLUS(all_subst += ap->subst_count[i];)
|
|
}
|
|
# if ENABLE_FEATURE_FIND_EXEC_PLUS
|
|
/*
|
|
* coreutils expects {} to appear only once in "-exec +"
|
|
*/
|
|
if (all_subst != 1 && ap->filelist)
|
|
bb_error_msg_and_die("only one '{}' allowed for -exec +");
|
|
# endif
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_PAREN
|
|
else if (parm == PARM_char_brace) {
|
|
action_paren *ap;
|
|
char **endarg;
|
|
unsigned nested = 1;
|
|
|
|
dbg("%d", __LINE__);
|
|
endarg = argv;
|
|
while (1) {
|
|
if (!*++endarg)
|
|
bb_error_msg_and_die("unpaired '('");
|
|
if (LONE_CHAR(*endarg, '('))
|
|
nested++;
|
|
else if (LONE_CHAR(*endarg, ')') && !--nested) {
|
|
*endarg = NULL;
|
|
break;
|
|
}
|
|
}
|
|
ap = ALLOC_ACTION(paren);
|
|
ap->subexpr = parse_params(argv + 1);
|
|
*endarg = (char*) ")"; /* restore NULLed parameter */
|
|
argv = endarg;
|
|
}
|
|
#endif
|
|
else if (parm == PARM_name || parm == PARM_iname) {
|
|
action_name *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(name);
|
|
ap->pattern = arg1;
|
|
ap->iname = (parm == PARM_iname);
|
|
}
|
|
#if ENABLE_FEATURE_FIND_PATH
|
|
else if (parm == PARM_path IF_DESKTOP(|| parm == PARM_wholename) || parm == PARM_ipath) {
|
|
action_path *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(path);
|
|
ap->pattern = arg1;
|
|
ap->ipath = (parm == PARM_ipath);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_REGEX
|
|
else if (parm == PARM_regex) {
|
|
action_regex *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(regex);
|
|
xregcomp(&ap->compiled_pattern, arg1, 0 /*cflags*/);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_TYPE
|
|
else if (parm == PARM_type) {
|
|
action_type *ap;
|
|
ap = ALLOC_ACTION(type);
|
|
ap->type_mask = find_type(arg1);
|
|
dbg("created:type mask:%x", ap->type_mask);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_PERM
|
|
/* -perm BITS File's mode bits are exactly BITS (octal or symbolic).
|
|
* Symbolic modes use mode 0 as a point of departure.
|
|
* -perm -BITS All of the BITS are set in file's mode.
|
|
* -perm [+/]BITS At least one of the BITS is set in file's mode.
|
|
*/
|
|
else if (parm == PARM_perm) {
|
|
action_perm *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(perm);
|
|
ap->perm_char = arg1[0];
|
|
arg1 = (arg1[0] == '/' ? arg1+1 : plus_minus_num(arg1));
|
|
/*ap->perm_mask = 0; - ALLOC_ACTION did it */
|
|
ap->perm_mask = bb_parse_mode(arg1, ap->perm_mask);
|
|
if (ap->perm_mask == (mode_t)-1)
|
|
bb_error_msg_and_die("invalid mode '%s'", arg1);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_MTIME
|
|
else if (parm == PARM_mtime) {
|
|
action_mtime *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(mtime);
|
|
ap->mtime_char = arg1[0];
|
|
ap->mtime_days = xatoul(plus_minus_num(arg1));
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_MMIN
|
|
else if (parm == PARM_mmin) {
|
|
action_mmin *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(mmin);
|
|
ap->mmin_char = arg1[0];
|
|
ap->mmin_mins = xatoul(plus_minus_num(arg1));
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_NEWER
|
|
else if (parm == PARM_newer) {
|
|
struct stat stat_newer;
|
|
action_newer *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(newer);
|
|
xstat(arg1, &stat_newer);
|
|
ap->newer_mtime = stat_newer.st_mtime;
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_INUM
|
|
else if (parm == PARM_inum) {
|
|
action_inum *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(inum);
|
|
ap->inode_num = xatoul(arg1);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_USER
|
|
else if (parm == PARM_user) {
|
|
action_user *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(user);
|
|
ap->uid = bb_strtou(arg1, NULL, 10);
|
|
if (errno)
|
|
ap->uid = xuname2uid(arg1);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_GROUP
|
|
else if (parm == PARM_group) {
|
|
action_group *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(group);
|
|
ap->gid = bb_strtou(arg1, NULL, 10);
|
|
if (errno)
|
|
ap->gid = xgroup2gid(arg1);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_SIZE
|
|
else if (parm == PARM_size) {
|
|
/* -size n[bckw]: file uses n units of space
|
|
* b (default): units are 512-byte blocks
|
|
* c: 1 byte
|
|
* k: kilobytes
|
|
* w: 2-byte words
|
|
*/
|
|
#if ENABLE_LFS
|
|
#define XATOU_SFX xatoull_sfx
|
|
#else
|
|
#define XATOU_SFX xatoul_sfx
|
|
#endif
|
|
static const struct suffix_mult find_suffixes[] = {
|
|
{ "c", 1 },
|
|
{ "w", 2 },
|
|
{ "", 512 },
|
|
{ "b", 512 },
|
|
{ "k", 1024 },
|
|
{ "", 0 }
|
|
};
|
|
action_size *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(size);
|
|
ap->size_char = arg1[0];
|
|
ap->size = XATOU_SFX(plus_minus_num(arg1), find_suffixes);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_CONTEXT
|
|
else if (parm == PARM_context) {
|
|
action_context *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(context);
|
|
/*ap->context = NULL; - ALLOC_ACTION did it */
|
|
/* SELinux headers erroneously declare non-const parameter */
|
|
if (selinux_raw_to_trans_context((char*)arg1, &ap->context))
|
|
bb_simple_perror_msg(arg1);
|
|
}
|
|
#endif
|
|
#if ENABLE_FEATURE_FIND_LINKS
|
|
else if (parm == PARM_links) {
|
|
action_links *ap;
|
|
dbg("%d", __LINE__);
|
|
ap = ALLOC_ACTION(links);
|
|
ap->links_char = arg1[0];
|
|
ap->links_count = xatoul(plus_minus_num(arg1));
|
|
}
|
|
#endif
|
|
else {
|
|
bb_error_msg("unrecognized: %s", arg);
|
|
bb_show_usage();
|
|
}
|
|
argv++;
|
|
}
|
|
dbg("exiting %s", __func__);
|
|
return appp;
|
|
#undef ALLOC_ACTION
|
|
#undef appp
|
|
#undef cur_action
|
|
#undef invert_flag
|
|
}
|
|
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int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int find_main(int argc UNUSED_PARAM, char **argv)
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{
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int i, firstopt, status = EXIT_SUCCESS;
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char **past_HLP, *saved;
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|
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|
INIT_G();
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/* "find -type f" + getopt("+HLP") => disaster.
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* Need to avoid getopt running into a non-HLP option.
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* Do this by temporarily storing NULL there:
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*/
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past_HLP = argv;
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for (;;) {
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saved = *++past_HLP;
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if (!saved)
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|
break;
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if (saved[0] != '-')
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break;
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|
if (!saved[1])
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break; /* it is "-" */
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if ((saved+1)[strspn(saved+1, "HLP")] != '\0')
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break;
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}
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*past_HLP = NULL;
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|
/* "+": stop on first non-option */
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i = getopt32(argv, "+HLP");
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if (i & (1<<0))
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G.recurse_flags |= ACTION_FOLLOWLINKS_L0 | ACTION_DANGLING_OK;
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if (i & (1<<1))
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G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
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|
/* -P is default and is ignored */
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argv = past_HLP; /* same result as "argv += optind;" */
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|
*past_HLP = saved;
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|
|
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for (firstopt = 0; argv[firstopt]; firstopt++) {
|
|
if (argv[firstopt][0] == '-')
|
|
break;
|
|
if (ENABLE_FEATURE_FIND_NOT && LONE_CHAR(argv[firstopt], '!'))
|
|
break;
|
|
if (ENABLE_FEATURE_FIND_PAREN && LONE_CHAR(argv[firstopt], '('))
|
|
break;
|
|
}
|
|
if (firstopt == 0) {
|
|
*--argv = (char*)".";
|
|
firstopt++;
|
|
}
|
|
|
|
G.actions = parse_params(&argv[firstopt]);
|
|
argv[firstopt] = NULL;
|
|
|
|
#if ENABLE_FEATURE_FIND_XDEV
|
|
if (G.xdev_on) {
|
|
struct stat stbuf;
|
|
|
|
G.xdev_count = firstopt;
|
|
G.xdev_dev = xzalloc(G.xdev_count * sizeof(G.xdev_dev[0]));
|
|
for (i = 0; argv[i]; i++) {
|
|
/* not xstat(): shouldn't bomb out on
|
|
* "find not_exist exist -xdev" */
|
|
if (stat(argv[i], &stbuf) == 0)
|
|
G.xdev_dev[i] = stbuf.st_dev;
|
|
/* else G.xdev_dev[i] stays 0 and
|
|
* won't match any real device dev_t
|
|
*/
|
|
}
|
|
}
|
|
#endif
|
|
|
|
for (i = 0; argv[i]; i++) {
|
|
if (!recursive_action(argv[i],
|
|
G.recurse_flags,/* flags */
|
|
fileAction, /* file action */
|
|
fileAction, /* dir action */
|
|
NULL, /* user data */
|
|
0) /* depth */
|
|
) {
|
|
status |= EXIT_FAILURE;
|
|
}
|
|
}
|
|
|
|
IF_FEATURE_FIND_EXEC_PLUS(status |= flush_exec_plus();)
|
|
return status;
|
|
}
|