From: Jarkko Hietaniemi Date: Fri, 27 Nov 1998 11:38:13 +0000 (+0000) Subject: C<-x>. X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=80d06f2dff03a52147744439d4888c6bef091986;p=p5sagit%2Fp5-mst-13.2.git C<-x>. p4raw-id: //depot/cfgperl@2317 --- diff --git a/lib/filetest.pm b/lib/filetest.pm index cc14e82..fe1777e 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). +permissions operators, the C<-r> C<-w> C<-x> C<-R> C<-W> C<-X> +(see L). 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 is in effect, because in some systems the extended functionality needs to be emulated. -B: 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: 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