X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=daemon%2Fdaemon.h;h=4a686c092998c54a39d8ecffdb36558a9d0b8fd2;hb=7fb25f53f836172376c25b405b5f88f4ec37eed8;hp=1e58910042fc8f498c31057f1f861a6b253fc2bd;hpb=3aa8182c3cc478bf723205f1a4dd84e160768448;p=libguestfs.git

diff --git a/daemon/daemon.h b/daemon/daemon.h
index 1e58910..4a686c0 100644
--- a/daemon/daemon.h
+++ b/daemon/daemon.h
@@ -33,6 +33,8 @@
 /*-- in guestfsd.c --*/
 extern int verbose;
 
+extern int autosync_umount;
+
 extern const char *sysroot;
 extern int sysroot_len;
 
@@ -81,8 +83,8 @@ extern int prog_exists (const char *prog);
 
 extern void udev_settle (void);
 
-/* This just stops gcc from giving a warning about our custom
- * printf formatters %Q and %R.  See HACKING file for more
+/* This just stops gcc from giving a warning about our custom printf
+ * formatters %Q and %R.  See guestfs(3)/EXTENDING LIBGUESTFS for more
  * info about these.
  */
 static inline int
@@ -107,7 +109,7 @@ extern uint64_t progress_hint;
 extern uint64_t optargs_bitmask;
 
 /*-- in mount.c --*/
-extern int root_mounted;
+extern int is_root_mounted (void);
 
 /*-- in stubs.c (auto-generated) --*/
 extern void dispatch_incoming_message (XDR *);
@@ -178,7 +180,7 @@ extern void notify_progress (uint64_t position, uint64_t total);
  */
 #define NEED_ROOT(cancel_stmt,fail_stmt)                                \
   do {									\
-    if (!root_mounted) {						\
+    if (!is_root_mounted ()) {						\
       if ((cancel_stmt) != -2)                                          \
         reply_with_error ("%s: you must call 'mount' first to mount the root filesystem", __func__); \
       fail_stmt;							\
@@ -253,17 +255,21 @@ extern void notify_progress (uint64_t position, uint64_t total);
  */
 #define CHROOT_IN				\
   do {						\
-    int __old_errno = errno;			\
-    if (chroot (sysroot) == -1)			\
-      perror ("CHROOT_IN: sysroot");		\
-    errno = __old_errno;			\
+    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 {						\
-    int __old_errno = errno;			\
-    if (chroot (".") == -1)			\
-      perror ("CHROOT_OUT: .");			\
-    errno = __old_errno;			\
+    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.