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#!/usr/bin/python
# Copyright (C) 2006-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the author nor the names of any contributors may be used
# to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# This parses C code using regexes (yes, thats horrible) and makes sure
# that calling conventions to the function psf_binheader_writef are
# correct.
import re, string, sys
_whitespace_re = re.compile ("\s+", re.MULTILINE)
def find_binheader_writefs (data):
lst = re.findall ('psf_binheader_writef\s*\(\s*[a-zA-Z_]+\s*,\s*\"[^;]+;', data, re.MULTILINE)
return [_whitespace_re.sub (" ", x) for x in lst]
def find_format_string (s):
fmt = re.search ('"([^"]+)"', s)
if not fmt:
print "Bad format in :\n\n\t%s\n\n" % s
sys.exit (1)
fmt = fmt.groups ()
if len (fmt) != 1:
print "Bad format in :\n\n\t%s\n\n" % s
sys.exit (1)
return _whitespace_re.sub ("", fmt [0])
def get_param_list (data):
dlist = re.search ("\((.+)\)\s*;", data)
dlist = dlist.groups ()[0]
dlist = string.split (dlist, ",")
dlist = [string.strip (x) for x in dlist]
return dlist [2:]
def handle_file (fname):
errors = 0
data = open (fname, "r").read ()
writefs = find_binheader_writefs (data)
for item in writefs:
fmt = find_format_string (item)
params = get_param_list (item)
param_index = 0
# print item
for ch in fmt:
if ch in 'Eet ':
continue
# print " param [%d] %c : %s" % (param_index, ch, params [param_index])
if ch != 'b':
param_index += 1
continue
# print item
# print " param [%d] %c : %s <-> %s" % (param_index, ch, params [param_index], params [param_index + 1])
if string.find (params [param_index + 1], "sizeof") < 0 \
and string.find (params [param_index + 1], "make_size_t") < 0 \
and string.find (params [param_index + 1], "strlen") < 0:
if errors == 0: print
print "\n%s :" % fname
print " param [%d] %c : %s <-> %s" % (param_index, ch, params [param_index], params [param_index + 1])
print " %s" % item
errors += 1
param_index += 2
return errors
#===============================================================================
if len (sys.argv) > 1:
print "\n binheader_writef_check :",
sys.stdout.flush ()
errors = 0
for fname in sys.argv [1:]:
errors += handle_file (fname)
if errors > 0:
print "\nErrors : %d\n" % errors
sys.exit (1)
print "ok\n"
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