From 5649b212979de21f52424bd22c45c3e8dcbb7448 Mon Sep 17 00:00:00 2001
From: Stefan Eissing <stefan@eissing.org>
Date: Fri, 20 Mar 2026 14:55:53 +0100
Subject: [PATCH] curlx_now(), prevent zero timestamp

As code checks `curltime` values for zero and interprets this
as not-initialized or "forever" in several places, make sure
`curlx_now()` never returns a zero timestamp.

Closes #21034
---
 lib/curlx/timeval.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/curlx/timeval.c b/lib/curlx/timeval.c
index 435804c299..2363e60839 100644
--- a/lib/curlx/timeval.c
+++ b/lib/curlx/timeval.c
@@ -166,6 +166,8 @@ void curlx_pnow(struct curltime *pnow)
    */
   pnow->tv_sec = time(NULL);
   pnow->tv_usec = 0;
+  if(!pnow->tv_sec) /* avoid a `now` fully zero */
+    pnow->tv_usec = 1;
 }
 
 #endif