X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=src%2Fguestfs-actions.c;h=94a08629698734b9a2d2b7dbb32d22f0186c854f;hp=f36fcf06d9a0ad31bdf790f4d44a138c50c857f0;hb=128f822e16bb96677c75b88125e18f48d7ccedaf;hpb=4211c7a258debd236017a19c70965bc1b3658edb

diff --git a/src/guestfs-actions.c b/src/guestfs-actions.c
index f36fcf0..94a0862 100644
--- a/src/guestfs-actions.c
+++ b/src/guestfs-actions.c
@@ -9024,7 +9024,7 @@ static void sfdisk_N_reply_cb (guestfs_h *g, void *data, XDR *xdr)
 
 int guestfs_sfdisk_N (guestfs_h *g,
 		const char *device,
-		int n,
+		int partnum,
 		int cyls,
 		int heads,
 		int sectors,
@@ -9041,7 +9041,7 @@ int guestfs_sfdisk_N (guestfs_h *g,
   memset (&ctx, 0, sizeof ctx);
 
   args.device = (char *) device;
-  args.n = n;
+  args.partnum = partnum;
   args.cyls = cyls;
   args.heads = heads;
   args.sectors = sectors;
@@ -10263,3 +10263,1575 @@ char **guestfs_sh_lines (guestfs_h *g,
   return ctx.ret.lines.lines_val;
 }
 
+struct glob_expand_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_glob_expand_ret ret;
+};
+
+static void glob_expand_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct glob_expand_ctx *ctx = (struct glob_expand_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_glob_expand");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_glob_expand");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_glob_expand");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_glob_expand_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_glob_expand");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char **guestfs_glob_expand (guestfs_h *g,
+		const char *pattern)
+{
+  struct guestfs_glob_expand_args args;
+  struct glob_expand_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_glob_expand") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.pattern = (char *) pattern;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_GLOB_EXPAND,
+        (xdrproc_t) xdr_guestfs_glob_expand_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, glob_expand_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_glob_expand");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_GLOB_EXPAND, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  /* caller will free this, but we need to add a NULL entry */
+  ctx.ret.paths.paths_val =
+    safe_realloc (g, ctx.ret.paths.paths_val,
+                  sizeof (char *) * (ctx.ret.paths.paths_len + 1));
+  ctx.ret.paths.paths_val[ctx.ret.paths.paths_len] = NULL;
+  return ctx.ret.paths.paths_val;
+}
+
+struct scrub_device_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+};
+
+static void scrub_device_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct scrub_device_ctx *ctx = (struct scrub_device_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_scrub_device");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_scrub_device");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_scrub_device");
+      return;
+    }
+    goto done;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+int guestfs_scrub_device (guestfs_h *g,
+		const char *device)
+{
+  struct guestfs_scrub_device_args args;
+  struct scrub_device_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_scrub_device") == -1) return -1;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.device = (char *) device;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_SCRUB_DEVICE,
+        (xdrproc_t) xdr_guestfs_scrub_device_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, scrub_device_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_scrub_device");
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_SCRUB_DEVICE, serial) == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs_end_busy (g);
+  return 0;
+}
+
+struct scrub_file_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+};
+
+static void scrub_file_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct scrub_file_ctx *ctx = (struct scrub_file_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_scrub_file");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_scrub_file");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_scrub_file");
+      return;
+    }
+    goto done;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+int guestfs_scrub_file (guestfs_h *g,
+		const char *file)
+{
+  struct guestfs_scrub_file_args args;
+  struct scrub_file_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_scrub_file") == -1) return -1;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.file = (char *) file;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_SCRUB_FILE,
+        (xdrproc_t) xdr_guestfs_scrub_file_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, scrub_file_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_scrub_file");
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_SCRUB_FILE, serial) == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs_end_busy (g);
+  return 0;
+}
+
+struct scrub_freespace_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+};
+
+static void scrub_freespace_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct scrub_freespace_ctx *ctx = (struct scrub_freespace_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_scrub_freespace");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_scrub_freespace");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_scrub_freespace");
+      return;
+    }
+    goto done;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+int guestfs_scrub_freespace (guestfs_h *g,
+		const char *dir)
+{
+  struct guestfs_scrub_freespace_args args;
+  struct scrub_freespace_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_scrub_freespace") == -1) return -1;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.dir = (char *) dir;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_SCRUB_FREESPACE,
+        (xdrproc_t) xdr_guestfs_scrub_freespace_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, scrub_freespace_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_scrub_freespace");
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_SCRUB_FREESPACE, serial) == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs_end_busy (g);
+  return 0;
+}
+
+struct mkdtemp_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_mkdtemp_ret ret;
+};
+
+static void mkdtemp_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct mkdtemp_ctx *ctx = (struct mkdtemp_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_mkdtemp");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_mkdtemp");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_mkdtemp");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_mkdtemp_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_mkdtemp");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char *guestfs_mkdtemp (guestfs_h *g,
+		const char *template)
+{
+  struct guestfs_mkdtemp_args args;
+  struct mkdtemp_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_mkdtemp") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.template = (char *) template;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_MKDTEMP,
+        (xdrproc_t) xdr_guestfs_mkdtemp_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, mkdtemp_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_mkdtemp");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_MKDTEMP, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  return ctx.ret.dir; /* caller will free */
+}
+
+struct wc_l_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_wc_l_ret ret;
+};
+
+static void wc_l_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct wc_l_ctx *ctx = (struct wc_l_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_wc_l");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_wc_l");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_wc_l");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_wc_l_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_wc_l");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+int guestfs_wc_l (guestfs_h *g,
+		const char *path)
+{
+  struct guestfs_wc_l_args args;
+  struct wc_l_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_wc_l") == -1) return -1;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_WC_L,
+        (xdrproc_t) xdr_guestfs_wc_l_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, wc_l_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_wc_l");
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_WC_L, serial) == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs_end_busy (g);
+  return ctx.ret.lines;
+}
+
+struct wc_w_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_wc_w_ret ret;
+};
+
+static void wc_w_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct wc_w_ctx *ctx = (struct wc_w_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_wc_w");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_wc_w");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_wc_w");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_wc_w_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_wc_w");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+int guestfs_wc_w (guestfs_h *g,
+		const char *path)
+{
+  struct guestfs_wc_w_args args;
+  struct wc_w_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_wc_w") == -1) return -1;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_WC_W,
+        (xdrproc_t) xdr_guestfs_wc_w_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, wc_w_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_wc_w");
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_WC_W, serial) == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs_end_busy (g);
+  return ctx.ret.words;
+}
+
+struct wc_c_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_wc_c_ret ret;
+};
+
+static void wc_c_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct wc_c_ctx *ctx = (struct wc_c_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_wc_c");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_wc_c");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_wc_c");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_wc_c_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_wc_c");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+int guestfs_wc_c (guestfs_h *g,
+		const char *path)
+{
+  struct guestfs_wc_c_args args;
+  struct wc_c_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_wc_c") == -1) return -1;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_WC_C,
+        (xdrproc_t) xdr_guestfs_wc_c_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, wc_c_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_wc_c");
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_WC_C, serial) == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs_end_busy (g);
+  return ctx.ret.chars;
+}
+
+struct head_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_head_ret ret;
+};
+
+static void head_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct head_ctx *ctx = (struct head_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_head");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_head");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_head");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_head_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_head");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char **guestfs_head (guestfs_h *g,
+		const char *path)
+{
+  struct guestfs_head_args args;
+  struct head_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_head") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_HEAD,
+        (xdrproc_t) xdr_guestfs_head_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, head_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_head");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_HEAD, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  /* caller will free this, but we need to add a NULL entry */
+  ctx.ret.lines.lines_val =
+    safe_realloc (g, ctx.ret.lines.lines_val,
+                  sizeof (char *) * (ctx.ret.lines.lines_len + 1));
+  ctx.ret.lines.lines_val[ctx.ret.lines.lines_len] = NULL;
+  return ctx.ret.lines.lines_val;
+}
+
+struct head_n_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_head_n_ret ret;
+};
+
+static void head_n_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct head_n_ctx *ctx = (struct head_n_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_head_n");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_head_n");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_head_n");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_head_n_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_head_n");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char **guestfs_head_n (guestfs_h *g,
+		int nrlines,
+		const char *path)
+{
+  struct guestfs_head_n_args args;
+  struct head_n_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_head_n") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.nrlines = nrlines;
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_HEAD_N,
+        (xdrproc_t) xdr_guestfs_head_n_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, head_n_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_head_n");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_HEAD_N, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  /* caller will free this, but we need to add a NULL entry */
+  ctx.ret.lines.lines_val =
+    safe_realloc (g, ctx.ret.lines.lines_val,
+                  sizeof (char *) * (ctx.ret.lines.lines_len + 1));
+  ctx.ret.lines.lines_val[ctx.ret.lines.lines_len] = NULL;
+  return ctx.ret.lines.lines_val;
+}
+
+struct tail_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_tail_ret ret;
+};
+
+static void tail_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct tail_ctx *ctx = (struct tail_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_tail");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_tail");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_tail");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_tail_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_tail");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char **guestfs_tail (guestfs_h *g,
+		const char *path)
+{
+  struct guestfs_tail_args args;
+  struct tail_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_tail") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_TAIL,
+        (xdrproc_t) xdr_guestfs_tail_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, tail_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_tail");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_TAIL, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  /* caller will free this, but we need to add a NULL entry */
+  ctx.ret.lines.lines_val =
+    safe_realloc (g, ctx.ret.lines.lines_val,
+                  sizeof (char *) * (ctx.ret.lines.lines_len + 1));
+  ctx.ret.lines.lines_val[ctx.ret.lines.lines_len] = NULL;
+  return ctx.ret.lines.lines_val;
+}
+
+struct tail_n_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_tail_n_ret ret;
+};
+
+static void tail_n_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct tail_n_ctx *ctx = (struct tail_n_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_tail_n");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_tail_n");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_tail_n");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_tail_n_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_tail_n");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char **guestfs_tail_n (guestfs_h *g,
+		int nrlines,
+		const char *path)
+{
+  struct guestfs_tail_n_args args;
+  struct tail_n_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_tail_n") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.nrlines = nrlines;
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_TAIL_N,
+        (xdrproc_t) xdr_guestfs_tail_n_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, tail_n_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_tail_n");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_TAIL_N, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  /* caller will free this, but we need to add a NULL entry */
+  ctx.ret.lines.lines_val =
+    safe_realloc (g, ctx.ret.lines.lines_val,
+                  sizeof (char *) * (ctx.ret.lines.lines_len + 1));
+  ctx.ret.lines.lines_val[ctx.ret.lines.lines_len] = NULL;
+  return ctx.ret.lines.lines_val;
+}
+
+struct df_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_df_ret ret;
+};
+
+static void df_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct df_ctx *ctx = (struct df_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_df");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_df");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_df");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_df_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_df");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char *guestfs_df (guestfs_h *g)
+{
+  struct df_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_df") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  serial = guestfs__send_sync (g, GUESTFS_PROC_DF, NULL, NULL);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, df_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_df");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_DF, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  return ctx.ret.output; /* caller will free */
+}
+
+struct df_h_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_df_h_ret ret;
+};
+
+static void df_h_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct df_h_ctx *ctx = (struct df_h_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_df_h");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_df_h");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_df_h");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_df_h_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_df_h");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char *guestfs_df_h (guestfs_h *g)
+{
+  struct df_h_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_df_h") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  serial = guestfs__send_sync (g, GUESTFS_PROC_DF_H, NULL, NULL);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, df_h_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_df_h");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_DF_H, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  return ctx.ret.output; /* caller will free */
+}
+
+struct du_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_du_ret ret;
+};
+
+static void du_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct du_ctx *ctx = (struct du_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_du");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_du");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_du");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_du_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_du");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+int64_t guestfs_du (guestfs_h *g,
+		const char *path)
+{
+  struct guestfs_du_args args;
+  struct du_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_du") == -1) return -1;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_DU,
+        (xdrproc_t) xdr_guestfs_du_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, du_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_du");
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_DU, serial) == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs_end_busy (g);
+  return ctx.ret.sizekb;
+}
+
+struct initrd_list_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+  struct guestfs_initrd_list_ret ret;
+};
+
+static void initrd_list_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct initrd_list_ctx *ctx = (struct initrd_list_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_initrd_list");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_initrd_list");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_initrd_list");
+      return;
+    }
+    goto done;
+  }
+  if (!xdr_guestfs_initrd_list_ret (xdr, &ctx->ret)) {
+    error (g, "%s: failed to parse reply", "guestfs_initrd_list");
+    return;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+char **guestfs_initrd_list (guestfs_h *g,
+		const char *path)
+{
+  struct guestfs_initrd_list_args args;
+  struct initrd_list_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_initrd_list") == -1) return NULL;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.path = (char *) path;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_INITRD_LIST,
+        (xdrproc_t) xdr_guestfs_initrd_list_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, initrd_list_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_initrd_list");
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_INITRD_LIST, serial) == -1) {
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return NULL;
+  }
+
+  guestfs_end_busy (g);
+  /* caller will free this, but we need to add a NULL entry */
+  ctx.ret.filenames.filenames_val =
+    safe_realloc (g, ctx.ret.filenames.filenames_val,
+                  sizeof (char *) * (ctx.ret.filenames.filenames_len + 1));
+  ctx.ret.filenames.filenames_val[ctx.ret.filenames.filenames_len] = NULL;
+  return ctx.ret.filenames.filenames_val;
+}
+
+struct mount_loop_ctx {
+  /* This flag is set by the callbacks, so we know we've done
+   * the callbacks as expected, and in the right sequence.
+   * 0 = not called, 1 = reply_cb called.
+   */
+  int cb_sequence;
+  struct guestfs_message_header hdr;
+  struct guestfs_message_error err;
+};
+
+static void mount_loop_reply_cb (guestfs_h *g, void *data, XDR *xdr)
+{
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  struct mount_loop_ctx *ctx = (struct mount_loop_ctx *) data;
+
+  /* This should definitely not happen. */
+  if (ctx->cb_sequence != 0) {
+    ctx->cb_sequence = 9999;
+    error (g, "%s: internal error: reply callback called twice", "guestfs_mount_loop");
+    return;
+  }
+
+  ml->main_loop_quit (ml, g);
+
+  if (!xdr_guestfs_message_header (xdr, &ctx->hdr)) {
+    error (g, "%s: failed to parse reply header", "guestfs_mount_loop");
+    return;
+  }
+  if (ctx->hdr.status == GUESTFS_STATUS_ERROR) {
+    if (!xdr_guestfs_message_error (xdr, &ctx->err)) {
+      error (g, "%s: failed to parse reply error", "guestfs_mount_loop");
+      return;
+    }
+    goto done;
+  }
+ done:
+  ctx->cb_sequence = 1;
+}
+
+int guestfs_mount_loop (guestfs_h *g,
+		const char *file,
+		const char *mountpoint)
+{
+  struct guestfs_mount_loop_args args;
+  struct mount_loop_ctx ctx;
+  guestfs_main_loop *ml = guestfs_get_main_loop (g);
+  int serial;
+
+  if (check_state (g, "guestfs_mount_loop") == -1) return -1;
+  guestfs_set_busy (g);
+
+  memset (&ctx, 0, sizeof ctx);
+
+  args.file = (char *) file;
+  args.mountpoint = (char *) mountpoint;
+  serial = guestfs__send_sync (g, GUESTFS_PROC_MOUNT_LOOP,
+        (xdrproc_t) xdr_guestfs_mount_loop_args, (char *) &args);
+  if (serial == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs__switch_to_receiving (g);
+  ctx.cb_sequence = 0;
+  guestfs_set_reply_callback (g, mount_loop_reply_cb, &ctx);
+  (void) ml->main_loop_run (ml, g);
+  guestfs_set_reply_callback (g, NULL, NULL);
+  if (ctx.cb_sequence != 1) {
+    error (g, "%s reply failed, see earlier error messages", "guestfs_mount_loop");
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (check_reply_header (g, &ctx.hdr, GUESTFS_PROC_MOUNT_LOOP, serial) == -1) {
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  if (ctx.hdr.status == GUESTFS_STATUS_ERROR) {
+    error (g, "%s", ctx.err.error_message);
+    free (ctx.err.error_message);
+    guestfs_end_busy (g);
+    return -1;
+  }
+
+  guestfs_end_busy (g);
+  return 0;
+}
+