Make sure the correct errno is reported by warn* or err* and not

the errno of an intervening cleanup operation like close/unlink/etc.

Diff from Doug Hogan (doug (at) acyclic.org)

1 files changed, 2 insertions, 1 deletions

diff --git a/src/regress/lib/libc/stdio_threading/fwrite/fwrite_test.c b/src/regress/lib/libc/stdio_threading/fwrite/fwrite_test.c
index 621c5cb6e8..86c450cbc9 100755
--- a/src/regress/lib/libc/stdio_threading/fwrite/fwrite_test.c
+++ b/src/regress/lib/libc/stdio_threading/fwrite/fwrite_test.c
@@ -46,11 +46,12 @@ main(void)
         strlcpy(sfn, "/tmp/barnacles.XXXXXXXX", sizeof(sfn));
         if ((fd = mkstemp(sfn)) == -1 ||
             (sfp = fdopen(fd, "w+")) == NULL) {
+                int saved_errno = errno;
                 if (fd != -1) {
                         unlink(sfn);
                         close(fd);
                 }
-                err(1, "could not open temporary file");
+                errc(1, saved_errno, "could not open temporary file");
         }
 
         run_threads(fwrite_thread, sfp);