From 8b32191a3101cb6441fc64c87cfd011fdadc6867 Mon Sep 17 00:00:00 2001 From: Nobuyoshi Nakada Date: Tue, 15 Dec 2020 23:17:23 +0900 Subject: [PATCH] Ignore failure on unsupported fcntl to drop non-blocking mode --- ruby.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/ruby.c b/ruby.c index fc9adf775d..aa6d4a2b9d 100644 --- a/ruby.c +++ b/ruby.c @@ -2244,9 +2244,13 @@ open_load_file(VALUE fname_v, int *xflag) rb_update_max_fd(fd); #if defined HAVE_FCNTL && MODE_TO_LOAD != O_RDONLY +# ifdef ENOTSUP +# define IS_SUPPORTED_OP(e) ((e) != ENOTSUP) +# else +# define IS_SUPPORTED_OP(e) ((void)(e), 1) +# endif /* disabling O_NONBLOCK */ - if (fcntl(fd, F_SETFL, 0) < 0) { - e = errno; + if (fcntl(fd, F_SETFL, 0) < 0 && IS_SUPPORTED_OP(e = errno)) { (void)close(fd); rb_load_fail(fname_v, strerror(e)); }