diff options
Diffstat (limited to 'rpathtool.py')
| -rwxr-xr-x | rpathtool.py | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/rpathtool.py b/rpathtool.py deleted file mode 100755 index 42fda21..0000000 --- a/rpathtool.py +++ /dev/null @@ -1,149 +0,0 @@ -#!/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 -DT_NEEDED = 1 -DT_RPATH = 15 -DT_STRTAB = 5 -DT_SONAME = 14 - -class DynamicEntry(): - def __init__(self, ifile): - self.d_tag = struct.unpack('Q', ifile.read(8))[0]; - self.val = struct.unpack('Q', ifile.read(8))[0]; - -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() - self.parse_dynamic() - - 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) - if x == b'': - raise RuntimeError('Tried to read past the end of the file') - return b''.join(arr) - - def find_section(self, target_name): - 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() - if name == target_name: - return i - - def parse_dynamic(self): - sec = self.find_section(b'.dynamic') - self.dynamic = [] - self.bf.seek(sec.sh_offset) - while True: - e = DynamicEntry(self.bf) - self.dynamic.append(e) - if e.d_tag == 0: - break - - 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()) - - def print_soname(self): - soname = None - strtab = None - for i in self.dynamic: - if i.d_tag == DT_SONAME: - soname = i - if i.d_tag == DT_STRTAB: - strtab = i - self.bf.seek(strtab.val + soname.val) - print(self.read_str()) - - def print_deps(self): - sec = self.find_section(b'.dynstr') - deps = [] - for i in self.dynamic: - if i.d_tag == DT_NEEDED: - deps.append(i) - for i in deps: - offset = sec.sh_offset + i.val - self.bf.seek(offset) - name = self.read_str() - print(name) - -if __name__ == '__main__': - if len(sys.argv) != 2: - print('%s: <binary file>' % sys.argv[0]) - exit(1) - e = Elf(sys.argv[1]) - e.print_deps() |