[Boost-bugs] [Boost C++ Libraries] #7698: Boost directory iterator constructor crashes when folder gives input/output error

Subject: [Boost-bugs] [Boost C++ Libraries] #7698: Boost directory iterator constructor crashes when folder gives input/output error
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-11-15 13:34:43

#7698: Boost directory iterator constructor crashes when folder gives input/output
error
------------------------------+---------------------------------------------
 Reporter:  cpl               |       Owner:  bemandawes
     Type:  Bugs              |      Status:  new       
Milestone:  To Be Determined  |   Component:  filesystem
  Version:  Boost 1.47.0      |    Severity:  Problem   
 Keywords:                    |  
------------------------------+---------------------------------------------
 By using the directory iterator on a non accessible forlder under Linux,
 the following crash happens:

 #0  0x0000003064a329a5 in raise () from /lib64/libc.so.6
 #1  0x0000003064a34185 in abort () from /lib64/libc.so.6
 #2  0x0000003064a2b935 in __assert_fail () from /lib64/libc.so.6
 #3  0x000000000043a7b5 in
 boost::shared_ptr<boost::filesystem3::detail::dir_itr_imp>::operator->
 (this=0x7fffd216cf30)
     at /usr/include/boost/smart_ptr/shared_ptr.hpp:414
 #4  0x00000000005e89f2 in
 boost::filesystem3::detail::directory_iterator_increment (it=..., ec=0x0)
 at libs/filesystem/v3/src/operations.cpp:1947
 #5  0x00000000004363af in
 boost::filesystem3::directory_iterator::increment (this=0x7fffd216cf30) at
 /usr/include/boost/filesystem/v3/operations.hpp:630
 #6  0x00000000005e8810 in
 boost::filesystem3::detail::directory_iterator_construct (it=..., p=...,
 ec=0x7fffd216cf40)
     at libs/filesystem/v3/src/operations.cpp:1918
 #7  0x000000000054a120 in
 boost::filesystem3::directory_iterator::directory_iterator
 (this=0x7fffd216cf30, p=..., ec=...)
     at /usr/include/boost/filesystem/v3/operations.hpp:598


 A sample code that generates the crash is the following:

 boost::system::error_code ec;
 boost::filesystem3::directory_iterator itr(dir_path, ec);

 Where the dir_path is a folder that is not accessible. Using the ls
 command from terminal on the same folder returns:

 input/output error

 If the error returned is permission denied, everything works fine. I
 triggered the input/output error using the curlftpfs library which mounts
 a ftp as a folder on the system. The permission denied error can be
 generated on the same folder using nfs share.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7698>
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