FreeBSD Manual Pages
NAME rax2 -- radare base converter SYNOPSIS rax2 [-ebBsSvxkKh] [[expr] ...] DESCRIPTION This command is part of the radare project. Rax2 is a powerful calculator within the Radare2 suite, primarily used for numerical system conversions, encoding and decoding C strings, hex- pairs, and base64, essential for binary analysis and reverse engineer- ing tasks. The most common numerical bases include binary (base 2) for direct ma- chine code interaction, hexadecimal (base 16) for memory addresses and compact data representation, and decimal (base 10) for human-readable calculations and interpretations. OPTIONS -a Show ASCII table -b Force output mode (numeric base) f floating point 2 binary 3 ternary 8 octal 10 decimal 16 hexadecimal -c Show hexadecimal C string from integer value -C Dump stdin to C array in stdout (xxd replacement) -d Print the result in decimal (base 10) -D Decode the input data using base64 -e Swap endianness -E Encode the input data using base64 -f Interpret the input number as a 32bit dword and display it using IEEE 754 standard for floating point arithmetic -F Read C strings from stdin and output in hexpairs. Useful to load shellcodes -h Show usage help message -k Keep the same base as the input data -K Show randomart key asciiart for values or hexpairs -H Convert a string into a hash -i Convert LONG to/from IP ADDRESS -j Show the output in json format, the same as the r2 `?j 0x804` command. -n Append newline to the decoded output for human friendlyness -o Convert from octal string to char (rax2 -o 162 62) -q Be quiet. Show less information or drop the superfluous de- tails in the output. For example: rax2 -qC -r Show the same output as the r2's `? 0x804` command. When combined with -S (-rS) it will print r2 commands to write the actual binary into radare2 -s Convert from hex pairs string to character (rax2 -s 43 4a 50) -S Convert from character to hex string (rax2 -S C J P) -t Convert epoch timestamp to human readable date format -u Convert given value to human readable units format -v Show program version -w Display the result as 16bit signed integer value -x Show hexpairs from integer value -X Convert a bit stream (an arbitrary sequence of 0 and 1 of any length) to hexadecimal. The result can be larger than 64bits -z Convert from character string to binary (rax2 -z hello) -Z Convert from binary string to string (rax2 -l 01000101) USAGE Available variable types are: int -> hex rax2 10 hex -> int rax2 0xa -int -> hex rax2 -77 -hex -> int rax2 0xffffffb3 int -> bin rax2 b30 bin -> int rax2 1010d float -> hex rax2 3.33f hex -> float rax2 Fx40551ed8 oct -> hex rax2 35o hex -> oct rax2 Ox12 (O is a letter) bin -> hex rax2 1100011b hex -> bin rax2 Bx63 EXAMPLES With no arguments, rax2 reads values from stdin. You can pass one or more values as arguments. $ rax2 33 0x41 0101b 0x21 65 0x5 You can do 'unpack' hexpair encoded strings easily. $ rax2 -s 41 42 43 ABC It supports some math operations: $ rax2 1+1 "0x5*101b+5" 2 30 Encode and decode binary file using base64: $ rax2 -E < /bin/ls > ls.b64 $ rax2 -D < ls.b64 > ls $ cmp /bin/ls ls && echo $? 0 Use -z/-Z to convert between binary and string: $ rax2 -z hello 001100000111100000110001001100010011001000110011 $ rax2 -Z 0110100001100101011011000110110001101111 hello It is a very useful tool for scripting, so you can read floating point values, or get the integer offset of a jump or a stack delta when ana- lyzing programs. SEE ALSO radare2(1) WWW https://www.radare.org AUTHORS Written by pancake <pancake@nopcode.org>. Mar 19, 2024 RAX2(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | USAGE | EXAMPLES | SEE ALSO | WWW | AUTHORS
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=rax2&sektion=1&manpath=FreeBSD+Ports+14.3.quarterly>