ctypes, C string & Python string

gistfile1.py

#!/usr/bin/env python
from ctypes import *
from ctypes.util import find_library


libc = CDLL(find_library("libc"))

libc.free.argtypes = [ c_void_p ]
libc.free.restype  = None

libc.strdup.argtypes = [ c_char_p ]
libc.strdup.restype  = POINTER(c_char)


orig = "oh hai! im in ur memory"

cstr = libc.strdup(orig)

pstr = ""; i = 0
while cstr[i] != '\0': pstr = pstr + cstr[i]; i = i + 1

libc.free(cstr)

print "pstr=<%s>" % (pstr)