hfs-407.1.3.tar.gz

[apple/hfs.git] / CopyHFSMeta / Data.h

diff --git a/CopyHFSMeta/Data.h b/CopyHFSMeta/Data.h
index 6f183bfab35c7c2c0ac16fe8869e5da8edae0816..a6dc8c67232784972b56109bb92af5cad8f87570 100644 (file)
--- a/CopyHFSMeta/Data.h
+++ b/CopyHFSMeta/Data.h
@@ -1,6 +1,27 @@
 #ifndef _DATA_H
 # define _DATA_H
 
+# include <errno.h>
+/*
+ * Exit status values.  We use some errno values because
+ * they are convenient.
+ * kGoodExit:  we finished copying, and no problems.
+ * kNoSpaceExit:  Not enough space for the skeleton copy.
+ * kCopyIOExit:  An I/O error occurred.  This may not be fatal,
+ *     as it may just mean the source device went away.  We
+ *     can continue later, perhaps.
+ * kIntrExit:  The copying was interrupted.  As above, this may
+ *     not be fatal.
+ * kBadExit:  Any other problem.
+ */
+enum {
+       kGoodExit = 0,
+       kNoSpaceExit = ENOSPC,
+       kCopyIOExit = EIO,
+       kIntrExit = EINTR,
+       kBadExit = 1,
+};
+
 /*
  * Data-manipulating functions and structures, used to
  * create the skeleton copy.
@@ -16,6 +37,7 @@ struct IOWrapper;
 struct Extents {
        off_t base;
        off_t length;
+       unsigned int fid;       // Optional, may not be set
 };
 typedef struct Extents Extents_t;
 
@@ -31,7 +53,6 @@ struct ExtentList {
        struct ExtentList *next;
 };
 typedef struct ExtentList ExtentList_t;
-
 /*
  * The in-core description of the volume:  an input source,
  * a description of the volume, the linked list of extents,
@@ -47,11 +68,25 @@ struct VolumeObjects {
 };
 typedef struct VolumeObjects VolumeObjects_t;
 
+typedef int (^extent_handler_t)(int fid, off_t start, off_t len);
+
 extern VolumeObjects_t *InitVolumeObject(struct DeviceInfo *devp, struct VolumeDescriptor *vdp);
 extern int AddExtent(VolumeObjects_t *vop, off_t start, off_t length);
+extern int AddExtentForFile(VolumeObjects_t *vop, off_t start, off_t length, unsigned int fid);
 extern void PrintVolumeObject(VolumeObjects_t*);
 extern int CopyObjectsToDest(VolumeObjects_t*, struct IOWrapper *wrapper, off_t skip);
 
 extern void WriteGatheredData(const char *, VolumeObjects_t*);
 
+extern struct DeviceInfo *OpenDevice(const char *, int);
+extern struct VolumeDescriptor *VolumeInfo(struct DeviceInfo *);
+extern int AddHeaders(VolumeObjects_t *, int);
+extern void AddJournal(VolumeObjects_t *);
+extern void AddFileExtents(VolumeObjects_t *);
+extern int FindOtherMetadata(VolumeObjects_t *, extent_handler_t);
+extern int CompareVolumeHeaders(struct VolumeDescriptor*);
+
+void ReleaseDeviceInfo(struct DeviceInfo *);
+void ReleaseVolumeDescriptor(struct VolumeDescriptor*);
+void ReleaseVolumeObjects(VolumeObjects_t *);
 #endif /* _DATA_H */