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qapi: Reject -p arguments that break qapi-event.py

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qapi-event.py breaks when you ask for a funny prefix like '@'.
Protect it.

Backports commit 1cf47a15f18312436c7fa2d97be5fbe6df0292f5 from qemu
This commit is contained in:
Markus Armbruster 2018-02-19 16:07:38 -05:00 committed by Lioncash
parent 2c3f6e4175
commit cf9d457200
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1 changed files with 6 additions and 0 deletions
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6
qemu/scripts/qapi.py
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@ -1001,6 +1001,12 @@ def parse_command_line(extra_options = "", extra_long_options = []):
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 + "/"