--- /dev/null
+/*
+ * 9p backend
+ *
+ * Copyright IBM, Corp. 2010
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include <glib.h>
+#include <glib/gprintf.h>
+#include <dirent.h>
+#include <utime.h>
+#include <sys/uio.h>
+
+#include "9p-marshal.h"
+
+void v9fs_string_free(V9fsString *str)
+{
+ g_free(str->data);
+ str->data = NULL;
+ str->size = 0;
+}
+
+void v9fs_string_null(V9fsString *str)
+{
+ v9fs_string_free(str);
+}
+
+void GCC_FMT_ATTR(2, 3)
+v9fs_string_sprintf(V9fsString *str, const char *fmt, ...)
+{
+ va_list ap;
+
+ v9fs_string_free(str);
+
+ va_start(ap, fmt);
+ str->size = g_vasprintf(&str->data, fmt, ap);
+ va_end(ap);
+}
+
+void v9fs_string_copy(V9fsString *lhs, V9fsString *rhs)
+{
+ v9fs_string_free(lhs);
+ v9fs_string_sprintf(lhs, "%s", rhs->data);
+}