find-runtime-roots.pl: Use Nix::Utils::readFile
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@ -1,22 +1,21 @@
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#! @perl@ -w
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#! @perl@ -w @perlFlags@
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use strict;
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my $procDir = "/proc";
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use Nix::Utils;
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sub readProc {
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return unless -d $procDir;
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return unless -d "/proc";
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opendir DIR, "/proc" or return;
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opendir DIR, $procDir or return;
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foreach my $name (readdir DIR) {
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next unless $name =~ /^\d+$/;
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my $process = "$procDir/$name";
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my $process = "/proc/$name";
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#print STDERR "=== $process\n";
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my $target;
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print "$target\n" if $target = readlink "$process/exe";
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print "$target\n" if $target = readlink "$process/cwd";
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@ -58,18 +57,15 @@ readProc;
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lsof;
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sub readFile {
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my $path = shift;
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if (-e $path) {
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if (open FILE, "$path") {
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while (<FILE>) {
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print;
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}
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close FILE;
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}
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sub printFile {
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my ($fn) = @_;
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if (-e $fn) {
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print Nix::Utils::readFile($fn), "\n";
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}
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}
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# This is rather NixOS-specific, so it probably shouldn't be here.
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readFile "/proc/sys/kernel/modprobe";
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readFile "/proc/sys/kernel/fbsplash";
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printFile "/proc/sys/kernel/modprobe";
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printFile "/proc/sys/kernel/fbsplash";
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printFile "/proc/sys/kernel/poweroff_cmd";
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