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authorLorry <lorry@roadtrain.codethink.co.uk>2012-07-18 20:35:05 +0100
committerLorry <lorry@roadtrain.codethink.co.uk>2012-07-18 20:35:05 +0100
commitaceb1f30497619786f1827e4c65992b890a07410 (patch)
treece33ac9d0d076a8ec4f993e614cf71a4d5daa7e7 /src/binheader_writef_check.py
downloadlibsndfile-aceb1f30497619786f1827e4c65992b890a07410.tar.gz
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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"
+