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root |
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#!/usr/bin/perl -w |
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use strict; |
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use vars qw($Is_W32 $Is_OS2 $Is_Cygwin $Is_NetWare $Needs_Write); |
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use Config; # Remember, this is running using an existing perl |
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# Common functions needed by the regen scripts |
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$Is_W32 = $^O eq 'MSWin32'; |
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$Is_OS2 = $^O eq 'os2'; |
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$Is_Cygwin = $^O eq 'cygwin'; |
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$Is_NetWare = $Config{osname} eq 'NetWare'; |
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if ($Is_NetWare) { |
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$Is_W32 = 0; |
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} |
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$Needs_Write = $Is_OS2 || $Is_W32 || $Is_Cygwin || $Is_NetWare; |
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sub safer_unlink { |
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my @names = @_; |
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my $cnt = 0; |
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my $name; |
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foreach $name (@names) { |
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next unless -e $name; |
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chmod 0777, $name if $Needs_Write; |
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( CORE::unlink($name) and ++$cnt |
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or warn "Couldn't unlink $name: $!\n" ); |
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} |
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return $cnt; |
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} |
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sub safer_rename_silent { |
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my ($from, $to) = @_; |
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# Some dosish systems can't rename over an existing file: |
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safer_unlink $to; |
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chmod 0600, $from if $Needs_Write; |
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rename $from, $to; |
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} |
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sub safer_rename { |
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my ($from, $to) = @_; |
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safer_rename_silent($from, $to) or die "renaming $from to $to: $!"; |
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} |
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1; |
