X-Git-Url: https://git.brokenzipper.com/gitweb?a=blobdiff_plain;f=src%2Fincremen.c;h=9e0bb547b2d127c63bb5b28c1fe07702b17220fe;hb=d21d48dfba7ba5c0d136e2114291b45e09cf9b41;hp=b5eec8f0eaaad687c7d379990be5a829addcfddf;hpb=1e304fc5fd4fba5455057e74b09d08f954753340;p=chaz%2Ftar

diff --git a/src/incremen.c b/src/incremen.c
index b5eec8f..9e0bb54 100644
--- a/src/incremen.c
+++ b/src/incremen.c
@@ -150,6 +150,7 @@ procdir (char *name_buffer, struct stat *stat_data,
 { 
   struct directory *directory;
   bool nfs = NFS_FILE_STAT (*stat_data);
+  struct name *np;
   
   if ((directory = find_directory (name_buffer)) != NULL)
     {
@@ -202,8 +203,12 @@ procdir (char *name_buffer, struct stat *stat_data,
 	? ALL_CHILDREN
 	: CHANGED_CHILDREN;
     }
-  
-  if (one_file_system_option && device != stat_data->st_dev)
+
+  /* If the directory is on another device and --one-file-system was given,
+     omit it... */
+  if (one_file_system_option && device != stat_data->st_dev
+      /* ... except if it was explicitely given in the command line */
+      && !((np = name_scan (name_buffer, true)) && np->explicit))
     directory->children = NO_CHILDREN;
   else if (children == ALL_CHILDREN)
     directory->children = ALL_CHILDREN;
@@ -361,6 +366,20 @@ get_directory_contents (char *dir_name, dev_t device)
   return buffer;
 }
 
+size_t
+dumpdir_size (const char *p)
+{
+  size_t totsize = 0;
+
+  while (*p)
+    {
+      size_t size = strlen (p) + 1;
+      totsize += size;
+      p += size;
+    }
+  return totsize + 1;  
+}
+
 
 
 static FILE *listed_incremental_stream;
@@ -440,7 +459,7 @@ read_directory_file (void)
 	incremental_version = 0;
 
       if (incremental_version > TAR_INCREMENTAL_VERSION)
-	ERROR((1, 0, _("Unsupported incremental format version: %s"),
+	ERROR((1, 0, _("Unsupported incremental format version: %d"),
 	       incremental_version));
       
       t = u = (errno = 0, strtoumax (buf, &ebuf, 10));
@@ -617,43 +636,29 @@ write_directory_file (void)
 
 /* Restoration of incremental dumps.  */
 
-/* Examine the directories under directory_name and delete any
-   files that were not there at the time of the back-up. */
-void
-purge_directory (char const *directory_name)
+static void
+get_gnu_dumpdir (struct tar_stat_info *stat_info)
 {
-  char *archive_dir;
-  char *current_dir;
-  char *cur, *arc;
   size_t size;
   size_t copied;
   union block *data_block;
   char *to;
+  char *archive_dir;
+  
+  size = stat_info->stat.st_size;
 
-  current_dir = savedir (directory_name);
-
-  if (!current_dir)
-    {
-      /* The directory doesn't exist now.  It'll be created.  In any
-	 case, we don't have to delete any files out of it.  */
-
-      skip_member ();
-      return;
-    }
-
-  size = current_stat_info.stat.st_size;
-  if (size != current_stat_info.stat.st_size)
-    xalloc_die ();
   archive_dir = xmalloc (size);
   to = archive_dir;
+
+  set_next_block_after (current_header);
+  mv_begin (stat_info);
+
   for (; size > 0; size -= copied)
     {
+      mv_size_left (size);
       data_block = find_next_block ();
       if (!data_block)
-	{
-	  ERROR ((0, 0, _("Unexpected EOF in archive")));
-	  break;		/* FIXME: What happens then?  */
-	}
+	ERROR ((1, 0, _("Unexpected EOF in archive")));
       copied = available_space_after (data_block);
       if (copied > size)
 	copied = size;
@@ -663,9 +668,52 @@ purge_directory (char const *directory_name)
 			    (data_block->buffer + copied - 1));
     }
 
+  mv_end ();
+  
+  stat_info->dumpdir = archive_dir;
+  stat_info->skipped = true; /* For skip_member() and friends
+				to work correctly */
+}
+
+/* Return T if STAT_INFO represents a dumpdir archive member.
+   Note: can invalidate current_header. It happens if flush_archive()
+   gets called within get_gnu_dumpdir() */
+bool
+is_dumpdir (struct tar_stat_info *stat_info)
+{
+  if (stat_info->is_dumpdir && !stat_info->dumpdir)
+    get_gnu_dumpdir (stat_info);
+  return stat_info->is_dumpdir;
+}
+
+/* Examine the directories under directory_name and delete any
+   files that were not there at the time of the back-up. */
+void
+purge_directory (char const *directory_name)
+{
+  char *current_dir;
+  char *cur, *arc;
+
+  if (!is_dumpdir (&current_stat_info))
+    {
+      skip_member ();
+      return;
+    }
+  
+  current_dir = savedir (directory_name);
+
+  if (!current_dir)
+    {
+      /* The directory doesn't exist now.  It'll be created.  In any
+	 case, we don't have to delete any files out of it.  */
+
+      skip_member ();
+      return;
+    }
+
   for (cur = current_dir; *cur; cur += strlen (cur) + 1)
     {
-      for (arc = archive_dir; *arc; arc += strlen (arc) + 1)
+      for (arc = current_stat_info.dumpdir; *arc; arc += strlen (arc) + 1)
 	{
 	  arc++;
 	  if (!strcmp (arc, cur))
@@ -707,7 +755,6 @@ purge_directory (char const *directory_name)
 
     }
   free (current_dir);
-  free (archive_dir);
 }
 
 void