From 51e253133a87a72cfde9ce6bd8c12544b54721cb Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Fri, 7 Apr 2023 01:17:04 +0000
Subject:  Add selfpipe_fd(), refactor selfpipe

Signed-off-by: Laurent Bercot <ska@appnovation.com>
---
 src/libstddjb/sig_restoreto.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/libstddjb/sig_restoreto.c')

diff --git a/src/libstddjb/sig_restoreto.c b/src/libstddjb/sig_restoreto.c
index 1a9250e..e40f75b 100644
--- a/src/libstddjb/sig_restoreto.c
+++ b/src/libstddjb/sig_restoreto.c
@@ -2,12 +2,14 @@
 
 /* MT-unsafe */
 
+#include <errno.h>
 #include <signal.h>
 
 #include <skalibs/sig.h>
 
 void sig_restoreto (sigset_t const *set, unsigned int n)
 {
+  int e = errno ;
   unsigned int i = 1 ;
   for (; i < n ; i++)
   {
@@ -15,4 +17,5 @@ void sig_restoreto (sigset_t const *set, unsigned int n)
     if (h < 0) continue ;
     if (h) sig_restore(i) ;
   }
+  errno = e ;
 }
-- 
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