From: gcmoreira <gmoreira@gmail.com>
Date: Thu, 2 Feb 2017 13:47:30 +0000 (+1100)
Subject:  Fix parsing string table (#134)
X-Git-Tag: v0.25~49
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5533fd4c59c0e4560cbc979a7174e1f788d00ba9;p=pyelftools.git

 Fix parsing string table (#134)

If for any reason parse_cstring_from_stream() cannot get a string in the given offset, it'll return None causing the following line raises an exception when it tries to get the decoded ascii string from the None object.
---

diff --git a/elftools/elf/sections.py b/elftools/elf/sections.py
index 99550ac..1bc1715 100644
--- a/elftools/elf/sections.py
+++ b/elftools/elf/sections.py
@@ -71,7 +71,7 @@ class StringTableSection(Section):
         """
         table_offset = self['sh_offset']
         s = parse_cstring_from_stream(self.stream, table_offset + offset)
-        return s.decode('ascii')
+        return s.decode('ascii') if s else ''
 
 
 class SymbolTableSection(Section):