diff --git a/Lib/ctypes/util.py b/Lib/ctypes/util.py index ab10ec52ee8c35..3d7d24d0722387 100644 --- a/Lib/ctypes/util.py +++ b/Lib/ctypes/util.py @@ -270,8 +270,36 @@ def _findSoname_ldconfig(name): return None return res.group(1) + def _findWalk_ldpath(name): + + def _is_elf(filepath): + try: + with open(filepath, 'rb') as fh: + return fh.read(4) == b'\x7fELF' + except: + return False + + from glob import glob + + if os.path.isabs(name): + return name + # search LD_LIBRARY_PATH list + paths = os.environ.get('LD_LIBRARY_PATH', '').split(':') + if paths: + for d in paths: + f = os.path.join(d, name) + if _is_elf(f): + return os.path.basename(f) + prefix = os.path.join(d, 'lib'+name) + for suffix in ['.so', '.so.*']: + for f in glob('{0}{1}'.format(prefix, suffix)): + if _is_elf(f): + return os.path.basename(f) + def find_library(name): - return _findSoname_ldconfig(name) or _get_soname(_findLib_gcc(name)) + return _findSoname_ldconfig(name) or \ + _get_soname(_findLib_gcc(name)) or \ + _findWalk_ldpath(name) ################################################################ # test code