Add readuntil() and readlineuntil() to Comms

Both new functions check the input for a predicate and keep reading
until the predicate is true.
readuntil() will consume input byte by byte and use the entire string
read to check the predicate.  It will then return that entire string.
readlineuntil() consumes input line by line and only uses the last line
to check the predicate.  The line that satisfies the predicate is all
that is returned.

Signed-off-by: dusoleil <howcansocksbereal@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/sploit/comm.py b/sploit/comm.py
index 009f193..9b68c38 100644
--- a/sploit/comm.py
+++ b/sploit/comm.py
@@ -22,6 +22,20 @@ class Comm:
         log(data)
         return data
 
+    def readuntil(self,pred):
+        data = b''
+        while(not pred(data)):
+            data += self.back.stdin.read(1)
+        log(data)
+        return data
+
+    def readlineuntil(self,pred):
+        data = b''
+        while(not pred(data)):
+            data = self.back.stdin.readline()
+            log(data)
+        return data
+
     def write(self, data):
         self.back.stdout.write(data)
         self.back.stdout.flush()