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1 # ################################################################# |
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2 # Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 # All rights reserved. |
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4 # |
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5 # Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: |
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6 # |
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7 # * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. |
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8 # * 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. |
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9 # * Neither the name of Nokia Corporation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. |
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10 # |
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11 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
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12 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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13 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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14 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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15 # 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.# |
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16 # |
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17 # open.py |
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18 # |
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19 # Checks : Ignoring Open() return value. |
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20 # |
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21 # Reason : Ignoring the return value from Open() functions |
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22 # (due to OOM, etc.) means that when the resource is accessed next, |
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23 # a panic will result. |
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24 # |
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25 # ################################################################# |
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26 |
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27 script = CScript("open") |
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28 script.iReString = "^\s*(\w+)(\.|->)Open\s*\(" |
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29 script.iFileExts = ["cpp"] |
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30 script.iCategory = KCategoryCanPanic |
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31 script.iIgnore = KIgnoreCommentsAndQuotes |
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32 script.iSeverity = KSeverityHigh |
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33 |
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34 reOpenIgnoreStr = "" |
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35 scriptNode = script.ScriptConfig() |
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36 if (scriptNode <> None): |
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37 for wordNode in scriptNode.getElementsByTagName("openIgnoreRE"): |
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38 reOpenIgnoreStr = wordNode.firstChild.nodeValue |
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39 print "Note: ignoring the following objects and classes when checking for open() return value: " + reOpenIgnoreStr |
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40 break |
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41 if len(reOpenIgnoreStr) > 0: |
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42 reOpenIgnores = re.compile(reOpenIgnoreStr, re.IGNORECASE) |
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43 else : |
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44 reOpenIgnores = None |
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45 |
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46 reOpenAssignStr = "=\s+$" |
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47 reOpenAssign = re.compile(reOpenAssignStr, re.IGNORECASE) |
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48 |
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49 def streamcompare(lines, currentline, rematch, filename): |
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50 m = rematch.search(lines[currentline]) |
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51 if m: |
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52 # ignore objects with the word "tream" in object name or object type |
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53 objectName = m.group(1) |
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54 if (objectName.find("tream") <> -1): |
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55 return 0 |
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56 objectType = GetLocalVariableType(lines, currentline, objectName) |
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57 if (objectType.find("tream") <> -1): |
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58 return 0 |
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59 |
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60 #ignore objects with either object name or object type on the ignored list |
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61 if reOpenIgnores: |
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62 if reOpenIgnores.search(objectName): |
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63 return 0 |
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64 if reOpenIgnores.search(objectType): |
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65 return 0 |
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66 |
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67 # look for handler of Open() return value on a different line |
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68 i = currentline - 1 |
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69 if (i > 0) and (i >= scanner.iCurrentMethodStart): |
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70 line = lines[i] |
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71 bracketCount = line.count("(") - line.count(")") |
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72 if (bracketCount > 0): |
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73 return 0 |
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74 r = reOpenAssign.search(line) |
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75 if r: |
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76 return 0 |
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77 return 1 |
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78 else: |
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79 return 0 |
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80 |
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81 script.iCompare = streamcompare |
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82 scanner.AddScript(script) |