+struct file_rv {
+ int cb_done; /* flag to indicate callback was called */
+ struct guestfs_message_header hdr;
+ struct guestfs_message_error err;
+ struct guestfs_file_ret ret;
+};
+
+static void file_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+ struct file_rv *rv = (struct file_rv *) data;
+
+ if (!xdr_guestfs_message_header (xdr, &rv->hdr)) {
+ error (g, "guestfs_file: failed to parse reply header");
+ return;
+ }
+ if (rv->hdr.status == GUESTFS_STATUS_ERROR) {
+ if (!xdr_guestfs_message_error (xdr, &rv->err)) {
+ error (g, "guestfs_file: failed to parse reply error");
+ return;
+ }
+ goto done;
+ }
+ if (!xdr_guestfs_file_ret (xdr, &rv->ret)) {
+ error (g, "guestfs_file: failed to parse reply");
+ return;
+ }
+ done:
+ rv->cb_done = 1;
+ main_loop.main_loop_quit (g);
+}
+
+char *guestfs_file (guestfs_h *g,
+ const char *path)
+{
+ struct guestfs_file_args args;
+ struct file_rv rv;
+ int serial;
+
+ if (g->state != READY) {
+ error (g, "guestfs_file called from the wrong state, %d != READY",
+ g->state);
+ return NULL;
+ }
+
+ memset (&rv, 0, sizeof rv);
+
+ args.path = (char *) path;
+ serial = dispatch (g, GUESTFS_PROC_FILE,
+ (xdrproc_t) xdr_guestfs_file_args, (char *) &args);
+ if (serial == -1)
+ return NULL;
+
+ rv.cb_done = 0;
+ g->reply_cb_internal = file_cb;
+ g->reply_cb_internal_data = &rv;
+ main_loop.main_loop_run (g);
+ g->reply_cb_internal = NULL;
+ g->reply_cb_internal_data = NULL;
+ if (!rv.cb_done) {
+ error (g, "guestfs_file failed, see earlier error messages");
+ return NULL;
+ }
+
+ if (check_reply_header (g, &rv.hdr, GUESTFS_PROC_FILE, serial) == -1)
+ return NULL;
+
+ if (rv.hdr.status == GUESTFS_STATUS_ERROR) {
+ error (g, "%s", rv.err.error);
+ return NULL;
+ }
+
+ return rv.ret.description; /* caller will free */
+}
+