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 99550ac365578e67d5b4bde0493a02dde511ee7b..1bc17157c3f58dc583f56d451d65fae011a0b898 100644 (file)
--- 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):