[Poppler-bugs] [Bug 21713] New: faulty logic in goo/gfile.cc (openTempFile)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=21713

           Summary: faulty logic in goo/gfile.cc (openTempFile)
           Product: poppler
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
        AssignedTo: poppler-bugs at lists.freedesktop.org
        ReportedBy: peb at mppmu.mpg.de


Contrary to xpdf, poppler tries to avoid the use of tmpnam() when mkstemp() is
found but mkstemps() is not found [never saw a description of mkstemps].

This results in using mkstemp with an argument "prefixXXXXXX.ext", which will
always fail -- at least with GNU libc 2.3.x and 2.4.

It seems there is no good way to safely create a temporary file with an
extension. Why would one need that. In xpdf and poppler the last argument of
openTempFile is always NULL, so this whole thing is broken but unused, i.e.,
superfluous.


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