Add a length check to aifc to ensure it doesn't write a bogus file

2006-05-30 00:26:01 +00:00 · 2006-05-30 00:26:01 +00:00 · 6067f20172
parent 2fd3977a9d
commit 6067f20172
1 changed files with 2 additions and 0 deletions
--- a/Lib/aifc.py
+++ b/Lib/aifc.py
@ -201,6 +201,8 @@ def _write_long(f, x):
    f.write(struct.pack('>L', x))

 def _write_string(f, s):
+    if len(s) > 255:
+        raise ValueError("string exceeds maximum pstring length")
    f.write(chr(len(s)))
    f.write(s)
    if len(s) & 1 == 0: