From 9d0b8b92a508c328e7eac774847f001f80dfb5ff Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Mon, 24 Aug 2020 21:38:49 -0400
Subject: make h_errno thread-local
the framework to do this always existed but it was deemed unnecessary
because the only [ex-]standard functions using h_errno were not
thread-safe anyway. however, some of the nonstandard res_* functions
are also supposed to set h_errno to indicate the cause of error, and
were unable to do so because it was not thread-safe. this change is a
prerequisite for fixing them.
---
src/network/h_errno.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
(limited to 'src/network')
diff --git a/src/network/h_errno.c b/src/network/h_errno.c
index 4f700cea..8677a92b 100644
--- a/src/network/h_errno.c
+++ b/src/network/h_errno.c
@@ -1,9 +1,7 @@
#include <netdb.h>
-
-#undef h_errno
-int h_errno;
+#include "pthread_impl.h"
int *__h_errno_location(void)
{
- return &h_errno;
+ return &__pthread_self()->h_errno_val;
}
--
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