由于某种原因，Lion 上的沙箱导致我的应用程序在调用getprotobyname应该可用的调用时崩溃，因为它只读取 OSX 本身提供的静态数据。
这是Lion上的某种错误吗？沙盒是否有理由禁止这样做？似乎是一种非常常见的调用方法。
OfficeDrop Sync(1568) deny file-read-data /private/etc/protocols
Process: OfficeDrop Sync [1568]
Path: /Users/some-user/Downloads/OfficeDrop Sync.app/Contents/MacOS/OfficeDrop Sync
Load Address: 0x1000
Identifier: OfficeDrop Sync
Version: ??? (???)
Code Type: X86 (Native)
Parent Process: launchd [125]
Date/Time: 2013-03-04 14:02:50.897 -0500
OS Version: Mac OS X 10.7.5 (11G63)
Report Version: 7
Backtrace:
0 libsystem_kernel.dylib 0x9c7e771e __open_nocancel + 10
1 libsystem_c.dylib 0x96d6edc3 fopen$UNIX2003 + 90
2 libsystem_info.dylib 0x91352b4d _fsi_get_name_number_aliases + 123
3 libsystem_info.dylib 0x91351c2d file_protocol_byname + 44
4 libsystem_info.dylib 0x9135c0e8 search_protocol_byname + 69
5 libsystem_info.dylib 0x91357921 getprotobyname + 59
6 OfficeDrop Sync 0x001b26c4 ves_icall_System_Net_Sockets_Socket_SetSocketOption_internal + 100
7 0x0654336c
8 0x065432b0
9 0x06545304
10 0x065426a4
11 0x0654212c
12 0x06540f8c
13 0x006b6cad
14 OfficeDrop Sync 0x0000f894 mono_jit_runtime_invoke + 164
15 OfficeDrop Sync 0x00184ed4 mono_runtime_invoke + 68
16 OfficeDrop Sync 0x001851af mono_runtime_delegate_invoke + 63
17 OfficeDrop Sync 0x001b8f3f async_invoke_thread + 2799
18 OfficeDrop Sync 0x001be46c start_wrapper + 348
19 OfficeDrop Sync 0x001f060a thread_start_routine + 154
20 OfficeDrop Sync 0x00217cf4 GC_start_routine + 100
21 libsystem_c.dylib 0x96daced9 _pthread_start + 335
22 libsystem_c.dylib 0x96db06de thread_start + 34
Binary Images:
0x1000 - 0x2bfff5 +com.officedrop.Sync.Mac (2.0.1 - 2.0.1) <943CAD79-B30C-3D5C-97EF-E2454D2FE6FC> /Users/some-user/Downloads/OfficeDrop Sync.app/Contents/MacOS/OfficeDrop Sync
0x91344000 - 0x91373ff7 libsystem_info.dylib (??? - ???) <37640811-445B-3BB7-9934-A7C99848250D> /usr/lib/system/libsystem_info.dylib
0x96d50000 - 0x96e1bfff libsystem_c.dylib (763.13.0 - compatibility 1.0.0) <52421B00-79C8-3727-94DE-62F6820B9C31> /usr/lib/system/libsystem_c.dylib
0x9c7cf000 - 0x9c7edff7 libsystem_kernel.dylib (1699.32.7 - compatibility 1.0.0) <79179F83-457A-3539-A76B-E960D2108109> /usr/lib/system/libsystem_kernel.dylib