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RADIFF2(1)		    General Commands Manual		    RADIFF2(1)

NAME
       radiff2 - binary	diffing	utility

SYNOPSIS
       radiff2	[-1abcCdeGhijnropqsSxuUvVzZ]  [-A[A]]  [-B  #]	[-g  sym]  [-m
       graph_mode][-t %] file file

DESCRIPTION
       radiff2 is a tool from the radare2 suite	designed  for  binary  diffing
       code and	data.

       It  supports  a wide range of formats and features, including architec-
       ture and	bits specification, delta diffing, graph diffing, and more.

OPTIONS
       -1     Output in	Generic	binary DIFF (0xd1ffd1ff	magic header).

       -a [arch]
	      Specify architecture plugin to use (x86, arm, etc.).

       -A [-A]
	      Run aaa or aaaa after loading each binary	(see -C).

       -b [bits]
	      Specify register size for	 architecture  (16  (thumb),  32,  64,
	      etc.).

       -B [baddr]
	      Define the base address to add the offsets when listing.

       -c     Count of changes.

       -C     Graphdiff	code (columns: off-A, match-ratio, off-B) (see -A).

       -d     Use delta	diffing.

       -D     Show disasm instead of hexpairs.

       -e [k=v]
	      Set eval config var value	for all	RCore instances.

       -g [arg]
	      Graph diff of [sym] or functions in [off1,off2].

       -G [cmd]
	      Run an r2	command	on every RCore instance	created.

       -i [ifscm]
	      Diff imports | fields | symbols |	classes	| methods.

       -j     Output in	JSON format.

       -m [mode]
	      Choose the graph output mode (aditsjJ).

       -n     Print bare addresses only	(diff.bare=1).

       -O     Code diffing with	opcode bytes only.

       -p     Use physical addressing (io.va=false) (only for radiff2 -AC).

       -q     Quiet mode (disable colors, reduce output).

       -r     Output in	radare commands.

       -s     Compute  edit  distance  (no substitution, Eugene	W. Myers O(ND)
	      diff algorithm).

       -ss    Compute Levenshtein  edit	 distance  (substitution  is  allowed,
	      O(N^2)).

       -S [name]
	      Sort code	diff (name, namelen, addr, size, type, dist) (only for
	      -C or -g).

       -t [0-100]
	      Set threshold for	code diff (default is 70%).

       -T     Analyze files in threads (EXPERIMENTAL, 30% faster and crashy).

       -u     Unified output (---+++).

       -U     Unified output using system 'diff'.

       -v     Show version information.

       -V     Be verbose (current only for -s).

       -x     Show two-column hexdump diffing.

       -X     Show two-column hexII diffing.

       -z     Diff on extracted	strings.

       -Z     Diff code	comparing zignatures.

GRAPH OUTPUT FORMATS (-m [mode])
       .      default is ASCII art.

       s      r2 commands.

       d      Graphviz dot.

       g      Graph Modelling Language (gml).

       j      JSON.

       J      JSON with	disarm.

       k      sdb key-value.

       t      Tiny ascii art.

       i      Interactive ascii	art.

USAGE EXAMPLES
       Comparing two binaries
	      radiff2 bin1 bin2

       Using graph diffing to compare functions	by name
	      radiff2 -g main bin1 bin2

       Counting	the number of changes between two binaries
	      radiff2 -c bin1 bin2

       Outputting the diff in a	unified	format
	      radiff2 -u bin1 bin2

       Comparing the opcodes of	two functions
	      radiff2 -O bin1 bin2

'C' COMMAND IN R2
       The  'c'	command	in r2 is used for various comparison operations	within
       data inside the same file. Here are some	examples of its	usage:

       Compare a plain string with escaped chars
	      c	"string	to compare"

       Compare byte at a specific address with current offset
	      c1 0x100

       Compare block size bytes	from current offset and	the 0x100 offset
	      cc 0x100

       Unified diff of disassembly from	current	seek and given address
	      cud 0x200	@ 0x100

       Compare memory hexdumps in unified diff format
	      cu 0x100 @ 0x200

	      For more detailed	 usage	of  the	 'c'  command,	refer  to  the
	      `c[?dfx] [argument]` help	section.

SEE ALSO
       radare2(1)

       https://www.radare.org/

AUTHOR
       pancake <pancake@nopcode.org>

Mar 16,	2024			 radiff2 tool			    RADIFF2(1)

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