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authorBradley Taunt <bt@btxx.org>2024-01-18 12:53:45 -0500
committerBradley Taunt <bt@btxx.org>2024-01-18 12:53:45 -0500
commitd1f0177d8d525eac0e0795d67467b09b57dbe7b0 (patch)
tree61f8253913c50d0fffc3f36d035f5b27781caeef /components/entropy.c
Initial commit on cgit platformHEADmaster
Diffstat (limited to 'components/entropy.c')
-rwxr-xr-xcomponents/entropy.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/components/entropy.c b/components/entropy.c
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+++ b/components/entropy.c
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+/* 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)
+ {
+ /* Unicode Character 'INFINITY' (U+221E) */
+ return "\xe2\x88\x9e";
+ }
+#endif