assert data.array.cast(Str()) != memstr
assert data.array.cast(Str("utf16")).val == memstr.val
print "See that the original array has been modified:"
print repr(data)
print
# Some type manipulation examples, for example let's construct an argv for
# a program:
# Let's say that we have two arguments, +1 for the program name and +1 for the
# final null ptr in argv, the array has 4 elements:
argv_t = Array(Ptr("<I", Str()), 4)
print "3 arguments argv type:", argv_t
# alloc argv somewhere
argv = argv_t.lval(vm)
# Auto alloc with the MemStr.from_str helper
MemStrAnsi = Str().lval
argv[0].val = MemStrAnsi.from_str(vm, "./my-program").get_addr()
argv[1].val = MemStrAnsi.from_str(vm, "arg1").get_addr()
argv[2].val = MemStrAnsi.from_str(vm, "27").get_addr()
argv[3].val = 0
# If you changed your mind on the second arg, you could do:
argv[2].deref.val = "42"
print "An argv instance:", repr(argv)
print "argv values:", repr([val.deref.val for val in argv[:-1]])
print
sb.jitter.vm.add_memory_page(passwd_addr,PAGE_READ | PAGE_WRITE,ascii_letters[:30] + '\x00','required input')
sb.jitter.vm.add_memory_page(argzero_addr,PAGE_READ,'reverseMe\x00','argv[0] -> program path')
sb.jitter.push_uint32_t(passwd_addr) #argv[1]
sb.jitter.push_uint32_t(argzero_addr) #argv[0]
sb.jitter.push_uint32_t(0x2) #argc
'''
#Set default allocator from class heap()
set_allocator(heap().vm_alloc)
#implementing argv[] array busing core types of miasm2
argv_t = Array(Ptr("<I",Str()),3)
argv = argv_t.lval(sb.jitter.vm)
MemStrAnsi = Str().lval
argv[0].val = MemStrAnsi.from_str(sb.jitter.vm, "./reverseMe").get_addr()
argv[1].val = MemStrAnsi.from_str(sb.jitter.vm, ascii_letters[:28]).get_addr()
argv[2].val = 0
sb.jitter.push_uint32_t(argv[2].val) #argv[2]
sb.jitter.push_uint32_t(argv[1].val) #argv[1]
sb.jitter.push_uint32_t(argv[0].val) #argv[0]
sb.jitter.push_uint32_t(0x2) #argc
#Handle INT \x80 exception and dump memory region
def dump(jitter):
print sb.jitter.vm
