From: Patsy Franklin Date: Wed, 6 Mar 2013 17:54:10 +0000 (-0500) Subject: T_REMOVEDIR and AT_EACCESS have the same value. X-Git-Tag: upstream/2.30~9397 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=39120df9b9e2ad9674c0d6265757a7a68e10051f;p=external%2Fglibc.git T_REMOVEDIR and AT_EACCESS have the same value. Add comments to fcntl.h explaining why AT_REMOVEDIR and AT_EACCESS can have the same value. --- diff --git a/ChangeLog b/ChangeLog index a175d61..c82ed84 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2013-03-06 Patsy Franklin + + * io/fcntl.h: Added a comment about AT_EACCESS and AT_REMOVEDIR. + 2013-03-06 Andreas Jaeger * sysdeps/unix/sysv/linux/bits/mman-linux.h (MAP_ANONYMOUS): Allow diff --git a/io/fcntl.h b/io/fcntl.h index 61834ce..14ccae0 100644 --- a/io/fcntl.h +++ b/io/fcntl.h @@ -129,6 +129,12 @@ typedef __pid_t pid_t; # define SEEK_END 2 /* Seek from end of file. */ #endif /* XPG */ +/* The constants AT_REMOVEDIR and AT_EACCESS have the same value. AT_EASSESS + is meaningful only to faccessat, while AT_REMOVEDIR is meaningful only to + unlinkat. The two functions do completely different things and therefore, + the flags can be allowed to overlap. For example, passing AT_REMOVEDIR to + faccessat would be undefined behavior and thus treating it equivalent to + AT_EACCESS is valid undefined behavior. */ #ifdef __USE_ATFILE # define AT_FDCWD -100 /* Special value used to indicate the *at functions should use the