win32: add fcntl()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/win32/mingw.c b/win32/mingw.c
index bd855dc7a..652406d13 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -387,3 +387,17 @@ int mingw_mkdir(const char *path, int mode UNUSED_PARAM)
 {
         return mkdir(path);
 }
+
+int fcntl(int fd UNUSED_PARAM, int cmd, ...)
+{
+        /*
+         * F_GETFL needs to be dealt at higher level
+         * Usually it does not matter if the call is
+         *   fcntl(fd, F_SETFL, fcntl(fd, F_GETFD) | something)
+         * because F_SETFL is not supported
+         */
+        if (cmd == F_GETFD || cmd == F_SETFD || cmd == F_GETFL)
+                return 0;
+        errno = EINVAL;
+        return -1;
+}