Ensure that a filename ending in a slash cannot be used to access a non-directory.

[gnulib.git] / ChangeLog

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+2008-09-24  Bruno Haible  <bruno@clisp.org>
+
+       Ensure that a filename ending in a slash cannot be used to access a
+       non-directory.
+       * lib/open.c (rpl_open): When the filename ends in a slash, use fstat()
+       to check whether it's really a directory.
+       * lib/fopen.c: Include fcntl.h, unistd.h.
+       (rpl_fopen): When the filename ends in a slash, use open(), fstat(),
+       and fdopen().
+       * modules/fopen (Depends-on): Add unistd.
+       * tests/test-open.c (main): Try to open "/dev/null/" as a directory.
+       * tests/test-fopen.c (main): Likewise.
+       * doc/posix-functions/open.texi: Mention the HP-UX, Solaris bug.
+       * doc/posix-functions/fopen.texi: Likewise.
+       Reported by Eric Blake.
+
 2008-09-23  Eric Blake  <ebb9@byu.net>
 
        c-stack: avoid compiler optimizations when provoking overflow