97 lines
3.3 KiB
Python
Executable File
97 lines
3.3 KiB
Python
Executable File
#!/usr/bin/python3 -tt
|
|
|
|
# Copyright 2013 Jussi Pakkanen
|
|
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import sys, struct
|
|
|
|
SHT_STRTAB = 3
|
|
|
|
class SectionHeader():
|
|
def __init__(self, ifile):
|
|
#Elf64_Word
|
|
self.sh_name = struct.unpack('I', ifile.read(4))[0];
|
|
#Elf64_Word
|
|
self.sh_type = struct.unpack('I', ifile.read(4))[0]
|
|
#Elf64_Xword
|
|
self.sh_flags = struct.unpack('Q', ifile.read(8))[0];
|
|
#Elf64_Addr
|
|
self.sh_addr = struct.unpack('Q', ifile.read(8))[0];
|
|
#Elf64_Off
|
|
self.sh_offset = struct.unpack('Q', ifile.read(8))[0]
|
|
#Elf64_Xword
|
|
self.sh_size = struct.unpack('Q', ifile.read(8))[0];
|
|
#Elf64_Word
|
|
self.sh_link = struct.unpack('I', ifile.read(4))[0];
|
|
#Elf64_Word
|
|
self.sh_info = struct.unpack('I', ifile.read(4))[0];
|
|
#Elf64_Xword
|
|
self.sh_addralign = struct.unpack('Q', ifile.read(8))[0];
|
|
#Elf64_Xword
|
|
self.sh_entsize = struct.unpack('Q', ifile.read(8))[0];
|
|
|
|
class Elf():
|
|
|
|
def __init__(self, bfile):
|
|
self.bfile = bfile
|
|
self.bf = open(bfile, 'rb')
|
|
self.parse_header()
|
|
self.parse_sections()
|
|
|
|
def parse_header(self):
|
|
self.e_ident = struct.unpack('16s', self.bf.read(16))[0]
|
|
if self.e_ident[1:4] != b'ELF':
|
|
raise RuntimeError('File "%s" is not an ELF file.' % self.bfile)
|
|
self.e_type = struct.unpack('h', self.bf.read(2))[0]
|
|
self.e_machine = struct.unpack('h', self.bf.read(2))[0]
|
|
self.e_version = struct.unpack('i', self.bf.read(4))[0]
|
|
self.e_entry = struct.unpack('Q', self.bf.read(8))[0]
|
|
self.e_phoff = struct.unpack('Q', self.bf.read(8))[0]
|
|
self.e_shoff = struct.unpack('Q', self.bf.read(8))[0]
|
|
self.e_flags = struct.unpack('i', self.bf.read(4))[0]
|
|
self.e_ehsize = struct.unpack('h', self.bf.read(2))[0]
|
|
self.e_phentsize = struct.unpack('h', self.bf.read(2))[0]
|
|
self.e_phnum = struct.unpack('h', self.bf.read(2))[0]
|
|
self.e_shentsize = struct.unpack('h', self.bf.read(2))[0]
|
|
self.e_shnum = struct.unpack('h', self.bf.read(2))[0]
|
|
self.e_shstrndx = struct.unpack('h', self.bf.read(2))[0]
|
|
|
|
def parse_sections(self):
|
|
self.bf.seek(self.e_shoff)
|
|
self.sections = []
|
|
for i in range(self.e_shnum):
|
|
self.sections.append(SectionHeader(self.bf))
|
|
|
|
def read_str(self):
|
|
arr = []
|
|
x = self.bf.read(1)
|
|
while x != b'\0':
|
|
arr.append(x)
|
|
x = self.bf.read(1)
|
|
return b''.join(arr)
|
|
|
|
def print_section_names(self):
|
|
section_names = self.sections[self.e_shstrndx]
|
|
for i in self.sections:
|
|
self.bf.seek(section_names.sh_offset + i.sh_name)
|
|
name = self.read_str()
|
|
print(name.decode())
|
|
|
|
if __name__ == '__main__':
|
|
if len(sys.argv) != 2:
|
|
print('%s: <binary file>' % sys.argv[0])
|
|
exit(1)
|
|
e = Elf(sys.argv[1])
|
|
e.print_section_names()
|