Add devoptab support to replace the libioushax devoptab

source/devoptab/devoptab_fsa_dirnext.cpp

@@ -0,0 +1,38 @@
+#include "devoptab_fsa.h"
+#include "logger.h"
+#include <mutex>
+
+int __fsa_dirnext(struct _reent *r,
+                  DIR_ITER *dirState,
+                  char *filename,
+                  struct stat *filestat) {
+    FSError status;
+
+    if (!dirState || !filename || !filestat) {
+        r->_errno = EINVAL;
+        return -1;
+    }
+
+    auto *dir = (__fsa_dir_t *) (dirState->dirStruct);
+    memset(&dir->entry_data, 0, sizeof(dir->entry_data));
+
+    auto *deviceData = (FSADeviceData *) r->deviceData;
+
+    std::lock_guard<MutexWrapper> lock(dir->mutex);
+
+    status = FSAReadDir(deviceData->clientHandle, dir->fd, &dir->entry_data);
+    if (status < 0) {
+        if (status != FS_ERROR_END_OF_DIR) {
+            DEBUG_FUNCTION_LINE_ERR("FSAReadDir(0x%08X, 0x%08X, 0x%08X) (%s) failed: %s",
+                                    deviceData->clientHandle, dir->fd, &dir->entry_data, dir->name, FSAGetStatusStr(status));
+        }
+        r->_errno = __fsa_translate_error(status);
+        return -1;
+    }
+
+    __fsa_translate_stat(&dir->entry_data.info, filestat);
+
+    memset(filename, 0, NAME_MAX);
+    strncpy(filename, dir->entry_data.name, NAME_MAX - 1);
+    return 0;
+}