通过popen3,我们还可以得到标准的错误信息。 > stdin.puts("asdfasdfasdfasdf") => nil >> stderr.gets => "dc: stack empty\n" 但是,在ruby 1.8.5中popen3
但这还是有缺陷的,我们知道在linux里面,有标准的0,1,2来代表标准输入,输出和错误,现在只有stdout没有其他的两个变量还是有限制的,如果仔细看python的方法,会发现popen还有popen2,popen3 具体点:popen 支持 stdout popen2 支持stdin, stdout popen3 支持stdin, stdout, stderr popen4 支持stdin, stdout and
n 1',shell=True,stdout=subprocess.PIPE) STDOUT2 = POPEN2.stdout # print(str(STDOUT2.read(),'gbk')) POPEN3
, 'openpty', 'pardir', 'path', 'pathconf', 'pathconf_names', 'pathsep', 'pipe', 'popen', 'popen2', 'popen3
others.py里发现了一下奇特的东西 black_type_list = [eval, execfile, compile, system, open, file, popen, popen2, popen3 反序列化的时候是有黑名单的,即过滤 观察过滤 black_type_list = [eval, execfile, compile, system, open, file, popen, popen2, popen3 import Pickler as Pkler black_type_list = [eval, execfile, compile, system, open, file, popen, popen2, popen3
writeup.md 然后代码中还有一些黑名单机制 black_type_list = [eval, execfile, compile, system, open, file, popen, popen2, popen3
from popen2 import Popen3 crm # help Usage: crm (nodes|config|resources) crm # nodes crm nodes # help
lstat', 'makedirs', 'mkdir', 'name', 'open', 'pardir', 'path', 'pathsep', 'pipe', 'popen', 'popen2', 'popen3