.Dd Sep 30, 2014
.Dt RAGG2 1
.Sh NAME
.Nm ragg2
.Nd radare2 frontend for r_egg, compile programs into tiny binaries for x86-32/64 and arm.
.Sh SYNOPSIS
.Nm ragg2
.Op Fl a Ar arch
.Op Fl b Ar bits
.Op Fl k Ar kernel
.Op Fl f Ar format
.Op Fl o Ar file
.Op Fl i Ar shellcode
.Op Fl I Ar path
.Op Fl e Ar encoder
.Op Fl B Ar hexpairs
.Op Fl c Ar k=v
.Op Fl C Ar file
.Op Fl n Ar num32
.Op Fl N Ar num64
.Op Fl d Ar off:dword
.Op Fl D Ar off:qword
.Op Fl w Ar off:hexpair
.Op Fl p Ar padding
.Op Fl P Ar pattern
.Op Fl q Ar fragment
.Op Fl FOLsrxvhz
.Sh DESCRIPTION
ragg2 is a frontend for r_egg, compile programs into tiny binaries for x86-32/64 and arm.
.Pp
This tool is experimental and it is a rewrite of the old rarc2 and rarc2-tool programs as a library and integrated with r_asm and r_bin.
.Pp
Programs generated by r_egg are relocatable and can be injected in a running process or on-disk binary file.
.Pp
ragg2-cc is another tool that comes with r2 and it is used to generate shellcodes from C code. The final code can be linked with rabin2 and it is relocatable, so it can be used to inject it on any remote process.
.Pp
ragg2-cc is conceptually based on shellforge4, but only linux/osx x86-32/64 platforms are supported.
.Sh DIRECTIVES
.Pp
The rr2 (ragg2) configuration file accepts the following directives, described as key=value entries and comments defined as lines starting with '#'.
.Bl -tag -width Fl
.It Fl a Ar arch
set architecture x86, arm
.It Fl b Ar bits
32 or 64
.It Fl k Ar kernel
windows, linux or osx
.It Fl f Ar format
select binary format (pe, elf, mach0)
.It Fl o Ar file
output file to write result of compilation
.It Fl i Ar shellcode
specify shellcode name to be used (see \-L)
.It Fl e Ar encoder
specify encoder name to be used (see \-L)
.It Fl B Ar hexpair
specify shellcode as hexpairs
.It Fl c Ar k=v
set configure option for the shellcode encoder. The argument must be key=value.
.It Fl C Ar file
include contents of file
.It Fl d Ar off:dword
Patch final buffer with given dword at specified offset
.It Fl D Ar off:qword
Patch final buffer with given qword at specified offset
.It Fl w Ar off:hexpairs
Patch final buffer with given hexpairs at specified offset
.It Fl n Ar num32
Append a 32bit number in little endian
.It Fl N Ar num64
Append a 64bit number in little endian
.It Fl p Ar padding
Specify generic paddings with a format string.
.It Fl P Ar size
Prepend debruijn sequence of given length.
.It Fl q Ar fragment
Output offset of debruijn sequence fragment.
.It Fl F
autodetect native file format (osx=mach0, linux=elf, ..)
.It Fl O
use default output file (filename without extension or a.out)
.It Fl I Ar path
add include path
.It Fl s
show assembler code
.It Fl r
show raw bytes instead of hexpairs
.It Fl x
execute (just-in-time)
.It Fl z
output in C string syntax
.El
.Sh EXAMPLE
.Pp
  $ cat hi.r
  /* hello world in r_egg */
  write@syscall(4); //x64 write@syscall(1);
  exit@syscall(1); //x64 exit@syscall(60);
.Pp
  main@global(128) {
    .var0 = "hi!\\n";
    write(1,.var0, 4);
    exit(0);
  }
  $ ragg2 \-O \-F hi.r
  $ ./hi
  hi!
.Pp
.Pp
  $ cat hi.c
  main() {
    write(1, "Hello\n", 6);
    exit(0);
  }
  $ ragg2 hi.c
  $ ./hi.c.bin
  Hello
.Sh SEE ALSO
.Pp
.Xr radare2(1) ,
.Xr rahash2(1) ,
.Xr rafind2(1) ,
.Xr rabin2(1) ,
.Xr rafind2(1) ,
.Xr radiff2(1) ,
.Xr rasm2(1) ,
.Sh AUTHORS
.Pp
Written by pancake <pancake@nopcode.org>.