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22 lines
433 B
Perl
22 lines
433 B
Perl
#!/usr/bin/perl
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#
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# Test program for /dev/random
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# Read and display random numbers.
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# Try tapping shift/alt/ctrl to get more randomness.
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#
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#
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for (;;) {
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open(BIN, "/dev/random") || die "Cannot open /dev/random - $!\n";
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$len = sysread(BIN, $a, 128);
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close(BIN);
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if ($len > 0) {
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print "$len bytes read: ";
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for ($j = 0; $j < $len; $j++) {
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$k = unpack("C", substr($a, $j, 1));
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printf("%.2X ", $k);
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}
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printf "\n";
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}
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}
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