1 files changed, 77 insertions, 0 deletions

diff --git a/regress/dev.c b/regress/dev.c
new file mode 100644
index 0000000..39b3584
--- /dev/null
+++ b/regress/dev.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2019 Yubico AB. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+
+#include <assert.h>
+#include <fido.h>
+
+#define FAKE_DEV_HANDLE ((void *)0xdeadbeef)
+#define REPORT_LEN      (64 + 1)
+
+static void *
+dummy_open(const char *path)
+{
+        (void)path;
+
+        return (FAKE_DEV_HANDLE);
+}
+
+static void
+dummy_close(void *handle)
+{
+        assert(handle == FAKE_DEV_HANDLE);
+}
+
+static int
+dummy_read(void *handle, unsigned char *ptr, size_t len, int ms)
+{
+        (void)ptr;
+        (void)len;
+        (void)ms;
+
+        assert(handle == FAKE_DEV_HANDLE);
+
+        return (-1);
+}
+
+static int
+dummy_write(void *handle, const unsigned char *ptr, size_t len)
+{
+        assert(handle == FAKE_DEV_HANDLE);
+        assert(ptr != NULL);
+        assert(len == REPORT_LEN);
+
+        return ((int)len);
+}
+
+/* gh#56 */
+static void
+open_iff_ok(void)
+{
+        fido_dev_t      *dev = NULL;
+        fido_dev_io_t    io;
+
+        io.open = dummy_open;
+        io.close = dummy_close;
+        io.read = dummy_read;
+        io.write = dummy_write;
+
+        assert((dev = fido_dev_new()) != NULL);
+        assert(fido_dev_set_io_functions(dev, &io) == FIDO_OK);
+        assert(fido_dev_open(dev, "dummy") == FIDO_ERR_RX);
+        assert(fido_dev_close(dev) == FIDO_ERR_INVALID_ARGUMENT);
+
+        fido_dev_free(&dev);
+}
+
+int
+main(void)
+{
+        fido_init(0);
+
+        open_iff_ok();
+
+        exit(0);
+}