SCANMACHO(1)						    Documentation for pax-utils 					      SCANMACHO(1)

NAME

       scanmacho - user-space utility to scan Mach-O files

SYNOPSIS

       scanmacho [options] Mach-Os or directories

DESCRIPTION

       scanmacho is a user-space utility to quickly scan given Mach-Os, directories, or common system paths for different information. This may
       include Mach-O types, their install_names, etc...

       Because Mach-O files can be "fat", it is possible for a single file to return multiple lines. Each line represents a single architecture,
       contained in the fat (universal) file. While there are no real restrictions, in practice, the entries can be distinguished by their arch
       type, e.g. ppc, ppc64, i386, x86_64, arm, ...

OPTIONS

       -A, --archives
	   Scan archives (.a files)

       -a, --all
	   Print all useful/simple info

       -B, --nobanner
	   Don't display the header

       -b, --bind
	   Print flags from mach_header

       -D, --endian
	   Print Mach-O endianness

       -E, --etype filetype
	   Print only Mach-O files matching specified etype (like MH_EXECUTABLE, MH_DYLIB, etc...)

       -F, --format FORMAT
	   Use specified format for output; see the FORMAT section for more information.

       -f, --from FILE
	   Read input stream from specified filename

       -g, --gmatch
	   Use strncmp to match libraries (use with -N). Or regexp with symbol matching

       -h, --help
	   Show condensed usage and exit

       -i, --interp
	   Print the interpreter information (LC_LOAD_DYLINKER)

       -M, --bits BITS
	   Print only Mach-O files matching specified numeric bits (like 32/64)

       -m, --mount
	   Don't recursively cross mount points

       -N, --lib INSTALLNAME
	   Find Mach-Os that need the specified INSTALL_NAME

       -n, --needed
	   Print libraries the Mach-O is linked against (LC_LOAD_DYLIB).

       -O, --perms PERMS
	   Print only Mach-O files with matching specified octal bits (like 755).

       -o, --file FILE
	   Write output stream to specified filename.

       -p, --path
	   Scan all directories in PATH environment.

       -q, --quiet
	   Only output 'bad' things.

       -R, --recursive
	   Scan directories recursively

       -S, --soname
	   Print the Mach-O's shared library name (install_name).

       -V, --version
	   Print version and exit

       -v, --verbose
	   Be verbose (can be used more than once)

       -y, --symlink
	   Don't scan symlinks

       -Z, --size SIZE
	   Print Mach-O file size

FORMAT

       The format string is much like a printf string in that it is a literal string with flags requesting different information. For example, you
       could use a format string and expect the following results.

	     # scanmacho -BF "file %f needs %n; funky time" /bin/bash
	     file bash needs /usr/lib/libncurses.5.4.dylib,/usr/lib/libSystem.B.dylib; funky time

       Note that when you use a format string, generally information related flags should be omitted. In other words, you do not want to try and
       request NEEDED output (-n) and try to specify a format output at the sametime as these operations are mutually exclusive. Each information
       related flag has an equivalent conversion specifier, so use those instead. You can of course continue to use non-information related flags
       (such as --verbose).

       There are three characters that introduce conversion specifiers.

       o % - replace with info
       o   # - silent boolean match
       o   + - verbose match

       And there are a number of conversion specifiers. We try to match up the specifier with corresponding option.

       o a - arch type
       o   b - mach_header flags
       o   D - endian
       o   F - long filename
       o   f - short filename
       o   i - dyld
       o   M - CPU_TYPE class
       o   N - specified needed
       o   n - needed libraries
       o   p - filename (minus search)
       o   o - mh_type
       o   O - perms
       o   S - install_name

MACH-O FILETYPES
       You can narrow your search by specifying the Mach-O object file type. The commandline option takes the symbolic type name. Multiple values
       can be passed comma separated. Example -E MH_EXECUTE,MH_DYLIB

       Here is the normal list available for your pleasure.

       o MH_OBJECT - intermediate object file (.o)
       o   MH_EXECUTE - standard executable program
       o   MH_BUNDLE - dlopen plugin (.bundle)
       o   MH_DYLIB - dynamic shared library (.dylib)
       o   MH_PRELOAD - executable not loaded by Mac OS X kernel (ROM)
       o   MH_CORE - program crash core file
       o   MH_DYLINKER - dynamic linker shared library (dyld)
       o   MH_DYLIB_STUB - shared library stub for static only, no sections
       o   MH_DSYM - debug symbols file (in .dSYM dir)

MACH-O BITS
       You can also narrow your search by specifying the Mach-O bitsize. Specify the numeric value.

       o 32 - 32bit mach_header
       o   64 - 64bit mach_header_64

HOMEPAGE

       http://hardened.gentoo.org/pax-utils.xml

REPORTING BUGS

       Please include as much information as possible (using any available debugging options) and send bug reports to the maintainers (see the
       AUTHORS section). Please use the Gentoo bugzilla at http://bugs.gentoo.org/ if possible.

SEE ALSO

       chpax(1), dumpelf(1), paxctl(1), pspax(1), readelf(1), scanelf(1)

AUTHORS

       Ned Ludd <solar@gentoo.org>
	   Maintainer

       Mike Frysinger <vapier@gentoo.org>
	   Maintainer

       Fabian Groffen <grobian@gentoo.org>
	   Mach-O Maintainer

NOTES

	1. http://hardened.gentoo.org/pax-utils.xml

	2. http://bugs.gentoo.org/

pax-utils 0.2.3 						    03/03/2011							      SCANMACHO(1)