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This commit is contained in:
Kovid Goyal 2016-01-11 11:26:53 +05:30
parent cad0f939cb
commit d4f224874d
1 changed files with 4 additions and 0 deletions
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4
src/calibre/utils/iphlpapi.py
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@ -292,6 +292,8 @@ def _get_forward_table():
break break
else: else:
raise OSError('Unable to get IP forward table. Error: %s' % err) raise OSError('Unable to get IP forward table. Error: %s' % err)
if p_forward_table is None:
raise OSError('Failed to get IP routing table, table appears to be changing rapidly')
finally: finally:
if p_forward_table is not None: if p_forward_table is not None:
HeapFree(heap, 0, p_forward_table) HeapFree(heap, 0, p_forward_table)
@ -317,6 +319,8 @@ def _get_adapters():
addresses = ctypes.cast(buf, ctypes.POINTER(IP_ADAPTER_ADDRESSES)) addresses = ctypes.cast(buf, ctypes.POINTER(IP_ADAPTER_ADDRESSES))
else: else:
raise OSError('Failed to determine size for adapters table with error: %s' % err) raise OSError('Failed to determine size for adapters table with error: %s' % err)
if addresses is None:
raise OSError('Failed to get adapter addresses, table appears to be changing rapidly')
finally: finally:
if addresses is not None: if addresses is not None:
HeapFree(heap, 0, addresses) HeapFree(heap, 0, addresses)