qapi: Reject -p arguments that break qapi-event.py
qapi-event.py breaks when you ask for a funny prefix like '@'.
Protect it.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
diff --git a/scripts/qapi.py b/scripts/qapi.py
index ba11c54..bc3f4d3 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -1003,6 +1003,12 @@
for oa in opts:
o, a = oa
if o in ("-p", "--prefix"):
+ match = re.match('([A-Za-z_.-][A-Za-z0-9_.-]*)?', a)
+ if match.end() != len(a):
+ print >>sys.stderr, \
+ "%s: 'funny character '%s' in argument of --prefix" \
+ % (sys.argv[0], a[match.end()])
+ sys.exit(1)
prefix = a
elif o in ("-o", "--output-dir"):
output_dir = a + "/"
