wutdevoptab: Rename all files to *fsa*.cpp

libraries/wutdevoptab/devoptab_fsa_truncate.cpp

@@ -0,0 +1,34 @@
+#include "devoptab_fsa.h"
+
+int
+__wut_fs_ftruncate(struct _reent *r,
+                   void *fd,
+                   off_t len)
+{
+   FSStatus status;
+   FSCmdBlock cmd;
+   __wut_fs_file_t *file;
+
+   // Make sure length is non-negative
+   if (!fd || len < 0) {
+      r->_errno = EINVAL;
+      return -1;
+   }
+
+   // Set the new file size
+   FSInitCmdBlock(&cmd);
+   file = (__wut_fs_file_t *)fd;
+   status = FSSetPosFile(__wut_devoptab_fs_client, &cmd, file->fd, len, FS_ERROR_FLAG_ALL);
+   if (status < 0) {
+      r->_errno = __wut_fs_translate_error(status);
+      return -1;
+   }
+
+   status = FSTruncateFile(__wut_devoptab_fs_client, &cmd, file->fd, FS_ERROR_FLAG_ALL);
+   if (status < 0) {
+      r->_errno = __wut_fs_translate_error(status);
+      return -1;
+   }
+
+   return 0;
+}