Sha256: 5fb80d3817b4259b337cb45419fc3a9f6e8c7816a642082e2b954bb09dcdc534
Contents?: true
Size: 1.89 KB
Versions: 17
Compression:
Stored size: 1.89 KB
Contents
require 'ffi'
module Ragweed::Wraptux
module Libc
extend FFI::Library
ffi_lib FFI::Library::LIBC
attach_function 'ptrace', [ :ulong, :pid_t, :ulong, :ulong ], :long
attach_function 'wait', [ :pointer ], :int
attach_function 'waitpid', [ :int, :pointer, :int ], :int
attach_function 'kill', [ :int, :int ], :int
attach_function 'malloc', [ :size_t ], :pointer
attach_function 'free', [ :pointer ], :void
end
class PTRegs < FFI::Struct
include Ragweed::FFIStructInclude
layout :ebx, :ulong,
:ecx, :ulong,
:edx, :ulong,
:esi, :ulong,
:edi, :ulong,
:ebp, :ulong,
:eax, :ulong,
:xds, :ulong,
:xes, :ulong,
:xfs, :ulong,
:xgs, :ulong,
:orig_eax, :ulong,
:eip, :ulong,
:xcs, :ulong,
:eflags, :ulong,
:esp, :ulong,
:xss, :ulong
end
class << self
# pid_t wait(int *status);
def wait
stat = FFI::MemoryPointer.new(:int, 1)
FFI.errno = 0
pid = Libc.wait stat
raise SystemCallError.new "wait", FFI.errno if pid == -1
[pid, stat.read_pointer.get_int32]
end
# pid_t waitpid(pid_t pid, int *status, int options);
def waitpid pid, opts = 0
p = FFI::MemoryPointer.new(:int, 1)
FFI.errno = 0
r = Libc.waitpid(pid,p,opts)
raise SystemCallError.new "waitpid", FFI.errno if r == -1
status = p.get_int32(0)
[r, status]
end
# int kill(pid_t pid, int sig);
def kill pid, sig
FFI.errno = 0
r = Libc.kill pid, sig
raise SystemCallError.new "waitpid", FFI.errno if r == -1
r
end
#long ptrace(enum __ptrace_request request, pid_t pid, void *addr, void *data);
def ptrace req, pid, addr, data
FFI.errno = 0
r = Libc.ptrace req, pid, addr, data
#raise SystemCallError.new "ptrace", FFI.errno if r == -1 and !FFI.errno.zero?
r
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems