或者无论如何都要使这个函数在ruby套接字编程中工作:
conn = pwn.remote('localhost', 4567)
conn.recvuntil("> ")
使用本机Ruby套接字模块, socket.read(bytes)将等待,直到它收到确切的字节数,我无法决定apriori。并且, socket.recv(bytes),只要获得一些数据就会打印出来,无论消息是否完整。
因为,我知道消息格式及其结尾,如果有如上所述的gem或以任何方式获取Ruby中的功能,那将很容易。
例如,如果我知道来自服务器的消息以冒号结束,
socket = Socket.new( AF_INET, SOCK_STREAM, 0 )
sockaddr = Socket.pack_sockaddr_in(port, hostname)
socket.connect( sockaddr )
socket.recvuntil ": "
# do something
socket.send "y"
答案 0 :(得分:0)
require 'socket'
def read_until(socket, re)
accu = ''
re = Regexp.escape(re) if String === re
re = /#{re}\Z/
socket.each_char do |c|
accu << c
return accu if re === accu
end
return accu
end
socket = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0 )
sockaddr = Socket.pack_sockaddr_in(80, 'www.google.com')
socket.connect(sockaddr)
socket.write "GET / HTTP/1.0\n\n"
headers = read_until(socket, /\r\n\r\n/)
body = socket.read
puts "HEADERS:\n#{headers}BODY:\n#{body}"