From aee8714e172c247a81a9f7069602b96aa389d719 Mon Sep 17 00:00:00 2001
From: Tyge Løvset <tylo@norceresearch.no>
Date: Sat, 24 Oct 2020 14:26:07 +0200
Subject: Make sure returned buf is null terminated on unseuccessful strftime.

---
 stc/cfmt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stc/cfmt.h b/stc/cfmt.h
index 7a3ea90a..1a0416a8 100644
--- a/stc/cfmt.h
+++ b/stc/cfmt.h
@@ -33,7 +33,7 @@ STC_API char* _cfmt_conv(int nargs, const char *fmt, ...);
 enum {_cfmt_bn=4, _cfmt_sn=64};
 STC_INLINE const char* _cfmt_strftime(char* n, char buf[][_cfmt_sn], size_t maxsize, const char *fmt, const struct tm *timeptr) {
     if (*n >= _cfmt_bn) return fmt;
-    int k = (*n)++;
+    int k = (*n)++; buf[k][0] = '\0';
     strftime(buf[k], maxsize, fmt, timeptr);
     return buf[k];
 }
-- 
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