Commit | Line | Data |
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a687059c LW |
1 | ;# The validate routine takes a single multiline string consisting of |
2 | ;# lines containing a filename plus a file test to try on it. (The | |
3 | ;# file test may also be a 'cd', causing subsequent relative filenames | |
4 | ;# to be interpreted relative to that directory.) After the file test | |
5 | ;# you may put '|| die' to make it a fatal error if the file test fails. | |
6 | ;# The default is '|| warn'. The file test may optionally have a ! prepended | |
7 | ;# to test for the opposite condition. If you do a cd and then list some | |
8 | ;# relative filenames, you may want to indent them slightly for readability. | |
9 | ;# If you supply your own "die" or "warn" message, you can use $file to | |
10 | ;# interpolate the filename. | |
11 | ||
12 | ;# Filetests may be bunched: -rwx tests for all of -r, -w and -x. | |
13 | ;# Only the first failed test of the bunch will produce a warning. | |
14 | ||
15 | ;# The routine returns the number of warnings issued. | |
16 | ||
17 | ;# Usage: | |
62b28dd9 | 18 | ;# require "validate.pl"; |
a687059c LW |
19 | ;# $warnings += do validate(' |
20 | ;# /vmunix -e || die | |
21 | ;# /boot -e || die | |
22 | ;# /bin cd | |
23 | ;# csh -ex | |
24 | ;# csh !-ug | |
25 | ;# sh -ex | |
26 | ;# sh !-ug | |
27 | ;# /usr -d || warn "What happened to $file?\n" | |
28 | ;# '); | |
29 | ||
30 | sub validate { | |
31 | local($file,$test,$warnings,$oldwarnings); | |
32 | foreach $check (split(/\n/,$_[0])) { | |
33 | next if $check =~ /^#/; | |
34 | next if $check =~ /^$/; | |
35 | ($file,$test) = split(' ',$check,2); | |
36 | if ($test =~ s/^(!?-)(\w{2,}\b)/$1Z/) { | |
37 | $testlist = $2; | |
38 | @testlist = split(//,$testlist); | |
39 | } | |
40 | else { | |
41 | @testlist = ('Z'); | |
42 | } | |
43 | $oldwarnings = $warnings; | |
44 | foreach $one (@testlist) { | |
45 | $this = $test; | |
46 | $this =~ s/(-\w\b)/$1 \$file/g; | |
47 | $this =~ s/-Z/-$one/; | |
48 | $this .= ' || warn' unless $this =~ /\|\|/; | |
49 | $this =~ s/^(.*\S)\s*\|\|\s*(die|warn)$/$1 || do valmess('$2','$1')/; | |
50 | $this =~ s/\bcd\b/chdir (\$cwd = \$file)/g; | |
51 | eval $this; | |
52 | last if $warnings > $oldwarnings; | |
53 | } | |
54 | } | |
55 | $warnings; | |
56 | } | |
57 | ||
58 | sub valmess { | |
59 | local($disposition,$this) = @_; | |
60 | $file = $cwd . '/' . $file unless $file =~ m|^/|; | |
61 | if ($this =~ /^(!?)-(\w)\s+\$file\s*$/) { | |
62 | $neg = $1; | |
63 | $tmp = $2; | |
64 | $tmp eq 'r' && ($mess = "$file is not readable by uid $>."); | |
65 | $tmp eq 'w' && ($mess = "$file is not writable by uid $>."); | |
66 | $tmp eq 'x' && ($mess = "$file is not executable by uid $>."); | |
67 | $tmp eq 'o' && ($mess = "$file is not owned by uid $>."); | |
68 | $tmp eq 'R' && ($mess = "$file is not readable by you."); | |
69 | $tmp eq 'W' && ($mess = "$file is not writable by you."); | |
70 | $tmp eq 'X' && ($mess = "$file is not executable by you."); | |
71 | $tmp eq 'O' && ($mess = "$file is not owned by you."); | |
72 | $tmp eq 'e' && ($mess = "$file does not exist."); | |
73 | $tmp eq 'z' && ($mess = "$file does not have zero size."); | |
74 | $tmp eq 's' && ($mess = "$file does not have non-zero size."); | |
75 | $tmp eq 'f' && ($mess = "$file is not a plain file."); | |
76 | $tmp eq 'd' && ($mess = "$file is not a directory."); | |
77 | $tmp eq 'l' && ($mess = "$file is not a symbolic link."); | |
78 | $tmp eq 'p' && ($mess = "$file is not a named pipe (FIFO)."); | |
79 | $tmp eq 'S' && ($mess = "$file is not a socket."); | |
80 | $tmp eq 'b' && ($mess = "$file is not a block special file."); | |
81 | $tmp eq 'c' && ($mess = "$file is not a character special file."); | |
82 | $tmp eq 'u' && ($mess = "$file does not have the setuid bit set."); | |
83 | $tmp eq 'g' && ($mess = "$file does not have the setgid bit set."); | |
84 | $tmp eq 'k' && ($mess = "$file does not have the sticky bit set."); | |
85 | $tmp eq 'T' && ($mess = "$file is not a text file."); | |
86 | $tmp eq 'B' && ($mess = "$file is not a binary file."); | |
87 | if ($neg eq '!') { | |
88 | $mess =~ s/ is not / should not be / || | |
89 | $mess =~ s/ does not / should not / || | |
90 | $mess =~ s/ not / /; | |
91 | } | |
40da2db3 | 92 | print STDERR $mess,"\n"; |
a687059c LW |
93 | } |
94 | else { | |
95 | $this =~ s/\$file/'$file'/g; | |
40da2db3 | 96 | print STDERR "Can't do $this.\n"; |
a687059c LW |
97 | } |
98 | if ($disposition eq 'die') { exit 1; } | |
99 | ++$warnings; | |
100 | } | |
101 | ||
102 | 1; |