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Diffstat (limited to 'contrib/perl5/lib/validate.pl')
| -rw-r--r-- | contrib/perl5/lib/validate.pl | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/contrib/perl5/lib/validate.pl b/contrib/perl5/lib/validate.pl new file mode 100644 index 0000000..ec4a04b --- /dev/null +++ b/contrib/perl5/lib/validate.pl @@ -0,0 +1,104 @@ +;# $RCSfile: validate.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:24:19 $ + +;# The validate routine takes a single multiline string consisting of +;# lines containing a filename plus a file test to try on it. (The +;# file test may also be a 'cd', causing subsequent relative filenames +;# to be interpreted relative to that directory.) After the file test +;# you may put '|| die' to make it a fatal error if the file test fails. +;# The default is '|| warn'. The file test may optionally have a ! prepended +;# to test for the opposite condition. If you do a cd and then list some +;# relative filenames, you may want to indent them slightly for readability. +;# If you supply your own "die" or "warn" message, you can use $file to +;# interpolate the filename. + +;# Filetests may be bunched: -rwx tests for all of -r, -w and -x. +;# Only the first failed test of the bunch will produce a warning. + +;# The routine returns the number of warnings issued. + +;# Usage: +;# require "validate.pl"; +;# $warnings += do validate(' +;# /vmunix -e || die +;# /boot -e || die +;# /bin cd +;# csh -ex +;# csh !-ug +;# sh -ex +;# sh !-ug +;# /usr -d || warn "What happened to $file?\n" +;# '); + +sub validate { + local($file,$test,$warnings,$oldwarnings); + foreach $check (split(/\n/,$_[0])) { + next if $check =~ /^#/; + next if $check =~ /^$/; + ($file,$test) = split(' ',$check,2); + if ($test =~ s/^(!?-)(\w{2,}\b)/$1Z/) { + $testlist = $2; + @testlist = split(//,$testlist); + } + else { + @testlist = ('Z'); + } + $oldwarnings = $warnings; + foreach $one (@testlist) { + $this = $test; + $this =~ s/(-\w\b)/$1 \$file/g; + $this =~ s/-Z/-$one/; + $this .= ' || warn' unless $this =~ /\|\|/; + $this =~ s/^(.*\S)\s*\|\|\s*(die|warn)$/$1 || do valmess('$2','$1')/; + $this =~ s/\bcd\b/chdir (\$cwd = \$file)/g; + eval $this; + last if $warnings > $oldwarnings; + } + } + $warnings; +} + +sub valmess { + local($disposition,$this) = @_; + $file = $cwd . '/' . $file unless $file =~ m|^/|; + if ($this =~ /^(!?)-(\w)\s+\$file\s*$/) { + $neg = $1; + $tmp = $2; + $tmp eq 'r' && ($mess = "$file is not readable by uid $>."); + $tmp eq 'w' && ($mess = "$file is not writable by uid $>."); + $tmp eq 'x' && ($mess = "$file is not executable by uid $>."); + $tmp eq 'o' && ($mess = "$file is not owned by uid $>."); + $tmp eq 'R' && ($mess = "$file is not readable by you."); + $tmp eq 'W' && ($mess = "$file is not writable by you."); + $tmp eq 'X' && ($mess = "$file is not executable by you."); + $tmp eq 'O' && ($mess = "$file is not owned by you."); + $tmp eq 'e' && ($mess = "$file does not exist."); + $tmp eq 'z' && ($mess = "$file does not have zero size."); + $tmp eq 's' && ($mess = "$file does not have non-zero size."); + $tmp eq 'f' && ($mess = "$file is not a plain file."); + $tmp eq 'd' && ($mess = "$file is not a directory."); + $tmp eq 'l' && ($mess = "$file is not a symbolic link."); + $tmp eq 'p' && ($mess = "$file is not a named pipe (FIFO)."); + $tmp eq 'S' && ($mess = "$file is not a socket."); + $tmp eq 'b' && ($mess = "$file is not a block special file."); + $tmp eq 'c' && ($mess = "$file is not a character special file."); + $tmp eq 'u' && ($mess = "$file does not have the setuid bit set."); + $tmp eq 'g' && ($mess = "$file does not have the setgid bit set."); + $tmp eq 'k' && ($mess = "$file does not have the sticky bit set."); + $tmp eq 'T' && ($mess = "$file is not a text file."); + $tmp eq 'B' && ($mess = "$file is not a binary file."); + if ($neg eq '!') { + $mess =~ s/ is not / should not be / || + $mess =~ s/ does not / should not / || + $mess =~ s/ not / /; + } + print STDERR $mess,"\n"; + } + else { + $this =~ s/\$file/'$file'/g; + print STDERR "Can't do $this.\n"; + } + if ($disposition eq 'die') { exit 1; } + ++$warnings; +} + +1; |
