From: Oleg Broytman <phd@phdru.name>
Date: Thu, 30 Jan 2014 19:07:40 +0000 (+0400)
Subject: Forbid filtering from console to console - show usage instead
X-Git-Tag: v2.3.2~22
X-Git-Url: https://git.phdru.name/?a=commitdiff_plain;h=038d41eaa2ab37dba4988904463aac7bda5151e6;p=mimedecode.git

Forbid filtering from console to console - show usage instead
---

diff --git a/TODO b/TODO
index bd35fb7..e69de29 100644
--- a/TODO
+++ b/TODO
@@ -1 +0,0 @@
-Forbid filtering stdin to stdout - require one of them to be a file.
diff --git a/mimedecode.py b/mimedecode.py
index f46165b..34c495f 100755
--- a/mimedecode.py
+++ b/mimedecode.py
@@ -389,6 +389,10 @@ if __name__ == "__main__":
     else:
         usage(1, 'Too many arguments')
 
+    if (infile is sys.stdin) and (outfile is sys.stdout) and \
+            sys.stdin.isatty() and sys.stdout.isatty():
+        usage(1, 'Filtering from console to console is forbidden')
+
     gopts.outfile = outfile
     decode_file(infile)