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