+extern guestfs_int_lvm_pv_list *parse_command_line_pvs (void);
+extern guestfs_int_lvm_vg_list *parse_command_line_vgs (void);
+extern guestfs_int_lvm_lv_list *parse_command_line_lvs (void);
+
+/*-- in optgroups.c (auto-generated) --*/
+struct optgroup {
+ const char *group; /* Name of the optional group. */
+ int (*available) (void); /* Function to test availability. */
+};
+extern struct optgroup optgroups[];
+
+/*-- in sync.c --*/
+/* Use this as a replacement for sync(2). */
+extern int sync_disks (void);
+
+/*-- in ext2.c --*/
+extern int e2prog (char *name); /* Massive hack for RHEL 5. */
+
+/*-- in lvm.c --*/
+extern int lv_canonical (const char *device, char **ret);
+
+/*-- in proto.c --*/
+extern void main_loop (int sock) __attribute__((noreturn));
+
+/* ordinary daemon functions use these to indicate errors
+ * NB: you don't need to prefix the string with the current command,
+ * it is added automatically by the client-side RPC stubs.
+ */
+extern void reply_with_error (const char *fs, ...)
+ __attribute__((format (printf,1,2)));
+extern void reply_with_perror_errno (int err, const char *fs, ...)
+ __attribute__((format (printf,2,3)));
+#define reply_with_perror(...) reply_with_perror_errno(errno, __VA_ARGS__)
+
+/* daemon functions that receive files (FileIn) should call
+ * receive_file for each FileIn parameter.
+ */
+typedef int (*receive_cb) (void *opaque, const void *buf, size_t len);
+extern int receive_file (receive_cb cb, void *opaque);
+
+/* daemon functions that receive files (FileIn) can call this
+ * to cancel incoming transfers (eg. if there is a local error).
+ */
+extern int cancel_receive (void);
+
+/* daemon functions that return files (FileOut) should call
+ * reply, then send_file_* for each FileOut parameter.
+ * Note max write size if GUESTFS_MAX_CHUNK_SIZE.
+ */
+extern int send_file_write (const void *buf, int len);
+extern int send_file_end (int cancel);
+
+/* only call this if there is a FileOut parameter */
+extern void reply (xdrproc_t xdrp, char *ret);
+
+/* Notify progress to caller. This function is self-rate-limiting so
+ * you can call it as often as necessary. Actions which call this
+ * should add 'Progress' note in generator.
+ */
+extern void notify_progress (uint64_t position, uint64_t total);
+
+/* Pulse mode progress messages.
+ *
+ * Call pulse_mode_start to start sending progress messages.
+ *
+ * Call pulse_mode_end along the ordinary exit path (ie. before a
+ * reply message is sent).
+ *
+ * Call pulse_mode_cancel along all error paths *before* any reply is
+ * sent. pulse_mode_cancel does not modify errno, so it is safe to
+ * call it before reply_with_perror.
+ *
+ * Pulse mode and ordinary notify_progress must not be mixed.
+ */
+extern void pulse_mode_start (void);
+extern void pulse_mode_end (void);
+extern void pulse_mode_cancel (void);
+
+/* Helper for functions that need a root filesystem mounted.
+ * NB. Cannot be used for FileIn functions.
+ */
+#define NEED_ROOT(cancel_stmt,fail_stmt) \
+ do { \
+ if (!is_root_mounted ()) { \
+ cancel_stmt; \
+ reply_with_error ("%s: you must call 'mount' first to mount the root filesystem", __func__); \
+ fail_stmt; \
+ } \
+ } \
+ while (0)
+
+/* Helper for functions that need an argument ("path") that is absolute.
+ * NB. Cannot be used for FileIn functions.
+ */
+#define ABS_PATH(path,cancel_stmt,fail_stmt) \
+ do { \
+ if ((path)[0] != '/') { \
+ cancel_stmt; \
+ reply_with_error ("%s: path must start with a / character", __func__); \
+ fail_stmt; \
+ } \
+ } while (0)
+
+/* All functions that need an argument that is a device or partition name
+ * must call this macro. It checks that the device exists and does
+ * device name translation (described in the guestfs(3) manpage).
+ * Note that the "path" argument may be modified.
+ *
+ * NB. Cannot be used for FileIn functions.
+ */
+#define RESOLVE_DEVICE(path,cancel_stmt,fail_stmt) \
+ do { \
+ if (STRNEQLEN ((path), "/dev/", 5)) { \
+ cancel_stmt; \
+ reply_with_error ("%s: %s: expecting a device name", __func__, (path)); \
+ fail_stmt; \
+ } \
+ if (is_root_device (path)) \
+ reply_with_error ("%s: %s: device not found", __func__, path); \
+ if (device_name_translation ((path)) == -1) { \
+ int err = errno; \
+ cancel_stmt; \
+ errno = err; \
+ reply_with_perror ("%s: %s", __func__, path); \
+ fail_stmt; \
+ } \
+ } while (0)
+
+/* Helper for functions which need either an absolute path in the
+ * mounted filesystem, OR a /dev/ device which exists.
+ *
+ * NB. Cannot be used for FileIn functions.
+ *
+ * NB #2: Functions which mix filenames and device paths should be
+ * avoided, and existing functions should be deprecated. This is
+ * because we intend in future to make device parameters a distinct
+ * type from filenames.
+ */
+#define REQUIRE_ROOT_OR_RESOLVE_DEVICE(path,cancel_stmt,fail_stmt) \
+ do { \
+ if (STREQLEN ((path), "/dev/", 5)) \
+ RESOLVE_DEVICE ((path), cancel_stmt, fail_stmt); \
+ else { \
+ NEED_ROOT (cancel_stmt, fail_stmt); \
+ ABS_PATH ((path), cancel_stmt, fail_stmt); \
+ } \
+ } while (0)
+
+/* NB:
+ * (1) You must match CHROOT_IN and CHROOT_OUT even along error paths.
+ * (2) You must not change directory! cwd must always be "/", otherwise
+ * we can't escape our own chroot.
+ * (3) All paths specified must be absolute.
+ * (4) Neither macro affects errno.
+ */
+#define CHROOT_IN \
+ do { \
+ if (sysroot_len > 0) { \
+ int __old_errno = errno; \
+ if (chroot (sysroot) == -1) \
+ perror ("CHROOT_IN: sysroot"); \
+ errno = __old_errno; \
+ } \
+ } while (0)
+#define CHROOT_OUT \
+ do { \
+ if (sysroot_len > 0) { \
+ int __old_errno = errno; \
+ if (chroot (".") == -1) \
+ perror ("CHROOT_OUT: ."); \
+ errno = __old_errno; \
+ } \
+ } while (0)
+
+/* Marks functions which are not implemented.
+ * NB. Cannot be used for FileIn functions.
+ */
+#define XXX_NOT_IMPL(errcode) \
+ do { \
+ reply_with_error ("%s: function not implemented", __func__); \
+ return (errcode); \
+ } \
+ while (0)
+
+/* Marks functions which are not available.
+ * NB. Cannot be used for FileIn functions.
+ */
+#define NOT_AVAILABLE(errcode) \
+ do { \
+ reply_with_error ("%s: function not available", __func__); \
+ return (errcode); \
+ } \
+ while (0)
+
+#ifndef __attribute__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
+# define __attribute__(x) /* empty */
+# endif
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif