fcntl-h: default O_SEARCH, O_EXEC to O_PATH if available

[gnulib.git] / ChangeLog

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+2012-11-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+       fcntl-h: default O_SEARCH, O_EXEC to O_PATH if available
+       Linux kernel 2.6.39 introduced O_PATH (see
+       <http://lwn.net/Articles/433854/>) and this is a better fallback
+       for O_SEARCH and O_EXEC than O_RDONLY, if O_PATH is available.
+       * doc/posix-headers/fcntl.texi (fcntl.h): Document this.
+       * lib/fcntl.in.h (O_EXEC, O_SEARCH) [O_PATH]: Default to O_PATH.
+       * lib/fcntl.in.h (O_ACCMODE):
+       * tests/test-fcntl-h.c (main):
+       Do not reject O_ACCMODE merely because it has more than the
+       minimal number of bits, as POSIX allows extensions here.
+
 2012-11-04  Andrew Warshall  <warshall@99main.com>  (tiny change)
 
        mountlist: do not classify a bind-mounted dir entry as "dummy"