Add pwntools sigframe example

Author: r888800009

srop/sigframe.py

@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+import os
+from pwn import *
+
+# SigreturnFrame 要求 context.arch 必須被配置
+context.arch = 'amd64'
+
+sigframe = SigreturnFrame()
+sigframe.rax = constants.SYS_read
+sigframe.rdi = 0
+sigframe.rsi = 0xaaaa
+sigframe.rdx = 0xbbbb
+sigframe.rip = 0xcccc
+sigframe.rsp = 0xdddd
+sigframe.r8 = 0x8888
+
+# 透過 bytes 進行輸出
+bytes(sigframe)
+
+# python3 ./sigframe.py | xxd -g 8 -e -c 8
+os.write(1, bytes(sigframe))
+
+