From d9c2cc7c4877a0fce089dfc63cc9e0e2dd48ca17 Mon Sep 17 00:00:00 2001
From: Xyc0 <rndpwn@gmail.com>
Date: Wed, 20 Apr 2016 01:45:44 +0000
Subject: [PATCH] executable mmap

---
 sins.py | 31 +++++++++++++++++++++++++++++++
 wscript | 26 +++++++++-----------------
 2 files changed, 40 insertions(+), 17 deletions(-)
 create mode 100755 sins.py

diff --git a/sins.py b/sins.py
new file mode 100755
index 0000000..d861fb2
--- /dev/null
+++ b/sins.py
@@ -0,0 +1,31 @@
+#! /usr/bin/env python
+# encoding: utf-8
+
+import struct
+import mmap
+import ctypes
+
+class Sins:
+    def __init__(self):
+        self.seed = open('./build/scrap.asm.2.o', 'rb').read()
+        self.pic = self.pic_load()
+
+    def pic_load(self):
+        prot = (mmap.PROT_READ | mmap.PROT_WRITE | mmap.PROT_EXEC)
+        page = mmap.mmap(-1, len(self.seed), prot=prot)
+        page.write(self.seed)
+        addr = ctypes.addressof((ctypes.c_char * len(self.seed)).from_buffer(page))
+        func = ctypes.CFUNCTYPE(ctypes.c_void_p, ctypes.c_void_p, ctypes.c_uint)(addr)
+        func.page = page
+
+        return func(addr, len(self.seed))
+
+if __name__ == '__main__':
+    import pprint
+    pp = pprint.PrettyPrinter()
+
+    sins = Sins()
+    print('Seed')
+    pp.pprint(sins.seed)
+    print('pic_load')
+    pp.pprint(sins.pic_load())
diff --git a/wscript b/wscript
index 941545f..a338af3 100644
--- a/wscript
+++ b/wscript
@@ -1,24 +1,16 @@
-import sys
-
+#! /usr/bin/env python
+# encoding: utf-8
 
 def options(opt):
-    opt.load('nasm compiler_c')
-
+    opt.load('nasm')
+    opt.load('python')
 
 def configure(conf):
-    conf.load('nasm compiler_c')
-    conf.check_cc(header_name='openssl/sha.h')
-
+    conf.load('nasm')
+    conf.load('python')
+    conf.check_python_version((3,5,1))
 
 def build(bld):
-    bld.program(
-        source='pic-linux.c',
-        target='pic-linux',
-        cflags='-g',
-        lib=['ssl', 'crypto'])
+    bld(features='py', source=('sins.py'))
 
-    bld(features='asm',
-        source='scrap.asm',
-        target='scrap')
-
-    # gdb --args ./pic-linux scrap.asm.2.o
+    bld(features='asm', source='scrap.asm', target='scrap')