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