Signed-off-by: Waldemar Kozaczuk <jwkozac...@gmail.com>
---
fs/vfs/main.cc | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/vfs/main.cc b/fs/vfs/main.cc
index 7e028ffb..a5bbf087 100644
--- a/fs/vfs/main.cc
+++ b/fs/vfs/main.cc
@@ -1454,6 +1454,10 @@ int fcntl(int fd, int cmd, int arg)
// ignored in OSv anyway, as it doesn't support exec().
switch (cmd) {
case F_DUPFD:
+ // On Linux F_DUPFD_CLOEXEC is used to affect behavior of duplicated file
descriptor
+ // across execve() boundaries, but on OSv there is single process so we
make it
+ // behave exactly like F_DUPFD does
+ case F_DUPFD_CLOEXEC:
error = _fdalloc(fp, &ret, arg);
if (error)
goto out_errno;
--
2.20.1
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