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1. fixed file descriptors leak in wxFileName::CreateTempFileName()

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2. really made it race-safe (provided we have mkstemp())


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13076 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2001-12-18 17:47:27 +00:00
parent 32334453e7
commit df22f86063
5 changed files with 59 additions and 32 deletions
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22
docs/latex/wx/filename.tex
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@@ -226,7 +226,7 @@ Set this file name object to the home directory.
\membersection{wxFileName::AssignTempFileName}\label{wxfilenameassigntempfilename}
\func{void}{AssignTempFileName}{\param{const wxString\& }{prefix}}
\func{void}{AssignTempFileName}{\param{const wxString\& }{prefix}, \param{wxFile *}{fileTemp = {\tt NULL}}}
The function calls \helpref{CreateTempFileName}{wxfilenamecreatetempfilename} to
create a temporary file and sets this object to the name of the file. If a
@@ -241,16 +241,28 @@ Reset all components to default, uninitialized state.
\membersection{wxFileName::CreateTempFileName}\label{wxfilenamecreatetempfilename}
\func{static wxString}{CreateTempFileName}{\param{const wxString\& }{prefix}}
\func{static wxString}{CreateTempFileName}{\param{const wxString\& }{prefix}, \param{wxFile *}{fileTemp = {\tt NULL}}}
Returns a temporary file name starting with the given {\it prefix}. If
the {\it prefix} is an absolute path, the temporary file is created in this
directory, otherwise it is created in the default system directory for the
temporary files or in the current directory.
If the function succeeds, the temporary file is actually created (but not
opened) as well. Under Unix, it will have read and write permissions for the
owner only.
If the function succeeds, the temporary file is actually created. If\rtfsp
{\it fileTemp} is not {\tt NULL}, this file will be opened using the name of
the temporary file. When possible, this is done in an atomic way ensuring that
no race condition occurs between the temporary file name generation and opening
it which could often lead to security compromise on the multiuser systems.
If {\it fileTemp} is {\tt NULL}, the file is only created, but not opened.
Under Unix, the temporary file will have read and write permissions for the
owner only to minimize the security problems.
\wxheading{Parameters}
\docparam{prefix}{Prefix to use for the temporary file name construction}
\docparam{fileTemp}{The file to open or {\tt NULL} to just get the name}
\wxheading{Return value}