From 062bef37b16f6b06f3147ec90fd018f361a17207 Mon Sep 17 00:00:00 2001
From: wukong <wukong@longaeva>
Date: Sat, 6 Dec 2025 00:22:16 -0800
Subject: merged changes from FreeBSD environment;

---
 ckt0.awk | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

(limited to 'ckt0.awk')

diff --git a/ckt0.awk b/ckt0.awk
index dac07ea..baeb599 100644
--- a/ckt0.awk
+++ b/ckt0.awk
@@ -1,7 +1,9 @@
 #!/usr/bin/env awk -f
 
 
-function log10(n) { return log(n)/log(10.0) }
+function log10(n) {
+    return log(n)/log(10.0)
+}
 
 
 function merge_meas(est_val, est_unc, meas_val, meas_unc) {
@@ -56,7 +58,22 @@ function ck_boottime() {
         t0_k = mktime(t0_k)
     }
 
-    return t0_k
+    if (uname ~/FreeBSD/) {
+        "sysctl kern.boottime" | getline t0_k
+        close("sysctl kern.boottime")
+        sub("^.*{", "", t0_k)
+        sub("}.*$", "", t0_k)
+        split(t0_k, t0_k_arr, ",")
+        for (n in t0_k_arr) {
+            sub("^.*= ", "", t0_k_arr[n])
+        }
+        t0_k = t0_k_arr[1] "." t0_k_arr[2]
+
+    }
+
+    t0_k_unc = systime()
+
+    return sprintf("%s %s", t0_k, t0_k_unc)
 
 }
 
@@ -140,8 +157,8 @@ BEGIN {
 
     # check ARGV for previous estimate
     if (ARGC > 0) {
-        ARGV[1] ? t0_est[1] = ARGV[1] : t0_est[1] = ck_boottime()
-        ARGV[2] ? t0_est[2] = ARGV[2] : t0_est[2] = systime()
+        ARGV[1] ? t0_est[1] = ARGV[1] : split(ck_boottime(), t0_est)
+        ARGV[2] ? t0_est[2] = ARGV[2] : split(ck_boottime(), t0_est)
     }
     #print("t0_est = ", t0_est[1])
     #print("t_boot_unc = ", t0_est[2])
-- 
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