s3:lib/select: don't overwrite errno in the signal handler

metze
(cherry picked from commit 00e378f17c39c52689601bc622b9cd78a0cdce12)

diff --git a/source3/lib/select.c b/source3/lib/select.c
index a58530af8d343eebe72ac484ce94e61a812999b1..b5443ff20ca3c7ebdb201d77616ca52fb0d1bca2 100644 (file)
--- a/source3/lib/select.c
+++ b/source3/lib/select.c
@@ -39,11 +39,15 @@ static volatile unsigned pipe_written, pipe_read;
 
 void sys_select_signal(char c)
 {
+       int saved_errno = errno;
+
        if (!initialised) return;
 
        if (pipe_written > pipe_read+256) return;
 
        if (write(select_pipe[1], &c, 1) == 1) pipe_written++;
+
+       errno = saved_errno;
 }
 
 /*******************************************************************