diff options
Diffstat (limited to 'lib/filetest.pm')
| -rw-r--r-- | lib/filetest.pm | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/lib/filetest.pm b/lib/filetest.pm index cc14e82817..fe1777e443 100644 --- a/lib/filetest.pm +++ b/lib/filetest.pm @@ -16,7 +16,8 @@ filetest - Perl pragma to control the filetest permission operators =head1 DESCRIPTION This pragma tells the compiler to change the behaviour of the filetest -permissions operators, the -r -w -x -R -W -X (see L<perlfunc>). +permissions operators, the C<-r> C<-w> C<-x> C<-R> C<-W> C<-X> +(see L<perlfunc>). The default behaviour to use the mode bits as returned by the stat() family of calls. This, however, may not be the right thing to do if @@ -31,11 +32,11 @@ There may be a slight performance decrease in the filetests when C<use filetest> is in effect, because in some systems the extended functionality needs to be emulated. -B<NOTE>: using the file tests is a lost case from the start: there is -a window open for race conditions (who is to say that the permissions -will not change between the test and the real operation?). Therefore -if you are serious about security, just try the real operation and -test for its success. Think atomicity. +B<NOTE>: using the file tests for security purposes is a lost case +from the start: there is a window open for race conditions (who is to +say that the permissions will not change between the test and the real +operation?). Therefore if you are serious about security, just try +the real operation and test for its success. Think atomicity. =head2 subpragma access |