From e697eeb3c5f098f9599d64b81cd4e69ab28658e8 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 1 Jan 2026 11:49:37 +0000
Subject:  Signal handlers must save/restore errno

---
 src/config/tipidee-config.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/config')

diff --git a/src/config/tipidee-config.c b/src/config/tipidee-config.c
index 3a8d999..154575b 100644
--- a/src/config/tipidee-config.c
+++ b/src/config/tipidee-config.c
@@ -28,7 +28,7 @@ static pid_t pid = 0 ;
 
 static void sigchld_handler (int sig)
 {
-  (void)sig ;
+  int e = errno ;
   for (;;)
   {
     int wstat ;
@@ -41,6 +41,8 @@ static void sigchld_handler (int sig)
       else _exit(wait_estatus(wstat)) ;
     }
   }
+  (void)sig ;
+  errno = e ;
 }
 
 static inline void conf_output (char const *ofile, unsigned int omode)
-- 
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