Enhance string decoding

pwndbg/enhance.py

@@ -52,7 +52,7 @@ def enhance(value):
         packed = pwndbg.arch.pack(int(value))
         if all(c in string.printable.encode('utf-8') for c in packed):
             if len(retval) > 4:
-                retval = '%s (%r)' % (retval, packed.decode())
+                retval = '%s (%r)' % (retval, str(packed.decode('ascii', 'ignore')))
 
         return retval
 

pwndbg/strings.py

@@ -21,14 +21,17 @@ def update_length():
 
 def get(address):
     try:
-        sz = gdb.Value(address).cast(pwndbg.typeinfo.pchar).string()
+        sz = gdb.Value(address)
+        sz = sz.cast(pwndbg.typeinfo.pchar)
+        sz = sz.string('ascii', 'ignore', length)
+        sz = str(sz)
     except Exception as e:
         return None
 
     if not all(s in string.printable for s in sz.rstrip('\x00')):
         return None
 
-    if len(sz) < length + 3:
+    if len(sz) < length:
     	return sz
 
     return sz[:length] + '...'