class extracttool:
def __init__(self,path):
self.path = os.path.abspath(path)
print "extracttool inited with abs path %s" % self.path
self.macho_utility = Macho_Utility(self.path)
self.macho_utility.initLoadCommand();
self.is64bit = self.macho_utility.is64bit(0)
def extractclasses(self):
results=[]
sec = self.macho_utility.findSegandSecInFile("__DATA","__objc_classlist")
secOffset = sec.fileoff
while secOffset < sec.fileoff+sec.vmsize:
with open(self.path,'rb') as f:
f.seek(secOffset)
curclassVM = readVMData(f.tell(),f,self.is64bit) #vm_addr
curclassOff = self.macho_utility.getFileOffFromVmAddr(curclassVM) #in __DATA.__objc_data
curObjc_class = Objc_Class(self,f,curclassOff,self.is64bit)
results.append(curObjc_class)
secOffset = secOffset + 0x4 #every 4 bytes a class in 32bit
if self.is64bit:
secOffset = secOffset + 0x4 #every 8 bytes a class in 64bit
return results
def extractLibs(self):
return self.macho_utility.libs
def extractIndSyms(self):
with open(self.path,'rb') as f:
cmdOffset = self.macho_utility.loadcommands["LD_DYSYMTAB"]
f.seek(cmdOffset)
print cmdOffset
from macho_utility import Macho_Utility
import sys
if __name__=='__main__':
machut = Macho_Utility(sys.argv[1])
machut.initLoadCommand()
print hex(machut.getFileOffFromVmAddr(int(sys.argv[2],0)))