diff options
Diffstat (limited to 'rpathtool.py')
| -rwxr-xr-x | rpathtool.py | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/rpathtool.py b/rpathtool.py index ce6b8e6..2fd58ba 100755 --- a/rpathtool.py +++ b/rpathtool.py @@ -89,6 +89,8 @@ class Elf(): while x != b'\0': arr.append(x) x = self.bf.read(1) + if x == b'': + raise RuntimeError('Tried to read past the end of the file') return b''.join(arr) def find_section(self, target_name): @@ -103,8 +105,12 @@ class Elf(): sec = self.find_section(b'.dynamic') self.dynamic = [] self.bf.seek(sec.sh_offset) - for i in range(sec.sh_entsize): - self.dynamic.append(DynamicEntry(self.bf)) + while True: + e = DynamicEntry(self.bf) + self.dynamic.append(e) + if e.d_tag == 0: + break + print('Dynamic has %d entries at offset 0x%x.' % (len(self.dynamic), sec.sh_offset)) def print_section_names(self): section_names = self.sections[self.e_shstrndx] @@ -128,13 +134,19 @@ class Elf(): deps = [] strtab = None for i in self.dynamic: - if i.d_tag == DT_RPATH or i.d_tag == DT_NEEDED: + if i.d_tag == DT_NEEDED: deps.append(i) if i.d_tag == DT_STRTAB: strtab = i assert(strtab is not None) + print('0x%x' % strtab.val) + fsize = self.bf.seek(0, 2) for i in deps: - self.bf.seek(strtab.val + i.val) + print('Strtab: 0x%x Filesize 0x%x' % (strtab.val, fsize)) + print('0x%x' % (0x463 - i.val)) + #assert(strtab.val <= fsize) + offset = strtab.val + i.val + self.bf.seek(offset) name = self.read_str() print(name) |