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| author | Philip Wittamore <philip@wittamore.com> | 2025-05-10 12:12:16 +0200 |
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| committer | Philip Wittamore <philip@wittamore.com> | 2025-05-10 12:12:16 +0200 |
| commit | c673e9b9ea5f25a491efa2d62cd67456758886c2 (patch) | |
| tree | c5248416b905157fb7e7392d788d24a9a82cb3d6 /components/entropy.c | |
| download | slstatus-c673e9b9ea5f25a491efa2d62cd67456758886c2.tar.gz slstatus-c673e9b9ea5f25a491efa2d62cd67456758886c2.tar.bz2 slstatus-c673e9b9ea5f25a491efa2d62cd67456758886c2.zip | |
update
Diffstat (limited to 'components/entropy.c')
| -rw-r--r-- | components/entropy.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/components/entropy.c b/components/entropy.c new file mode 100644 index 0000000..65010b0 --- /dev/null +++ b/components/entropy.c @@ -0,0 +1,29 @@ +/* See LICENSE file for copyright and license details. */ +#include "../slstatus.h" +#if defined(__linux__) + #include <stdint.h> + #include <stdio.h> + + #include "../util.h" + + #define ENTROPY_AVAIL "/proc/sys/kernel/random/entropy_avail" + + const char * + entropy(const char *unused) + { + uintmax_t num; + + if (pscanf(ENTROPY_AVAIL, "%ju", &num) != 1) + return NULL; + + return bprintf("%ju", num); + } +#elif defined(__OpenBSD__) | defined(__FreeBSD__) + const char * + entropy(const char *unused) + { + // https://www.unicode.org/charts/PDF/U2200.pdf + /* Unicode Character 'INFINITY' (U+221E) */ + return "\u221E"; + } +#endif |