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entropy.c - slstatus - status monitor |
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git clone git://git.suckless.org/slstatus |
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entropy.c (617B) |
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1 /* See LICENSE file for copyright and license details. */ |
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2 #include "../slstatus.h" |
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3 #if defined(__linux__) |
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4 #include <stdint.h> |
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5 #include <stdio.h> |
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6 |
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7 #include "../util.h" |
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8 |
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9 #define ENTROPY_AVAIL "/proc/sys/kernel/random/entropy_avail" |
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10 |
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11 const char * |
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12 entropy(const char *unused) |
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13 { |
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14 uintmax_t num; |
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15 |
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16 if (pscanf(ENTROPY_AVAIL, "%ju", &num) != 1) |
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17 return NULL; |
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18 |
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19 return bprintf("%ju", num); |
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20 } |
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21 #elif defined(__OpenBSD__) | defined(__FreeBSD__) |
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22 const char * |
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23 entropy(const char *unused) |
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24 { |
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25 // https://www.unicode.org/charts/PDF/U2200.pdf |
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26 /* Unicode Character 'INFINITY' (U+221E) */ |
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27 return "\u221E"; |
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28 } |
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29 #endif |
