gentoo-overlay/app-arch/tar/files/tar-1.28-concat-listed.patch

https://bugs.gentoo.org/546294
https://lists.gnu.org/archive/html/bug-tar/2015-04/msg00006.html

From 15c02c2b9d383446b3ea35dbea5a048e136b020d Mon Sep 17 00:00:00 2001
From: Sergey Poznyakoff <gray@gnu.org.ua>
Date: Thu, 16 Apr 2015 13:02:10 +0300
Subject: [PATCH] Fix extraction from concatenated incremental archives.

* src/common.h (remove_delayed_set_stat): New proto.
* src/extract.c (free_delayed_set_stat)
(remove_delayed_set_stat): New function.
(apply_nonancestor_delayed_set_stat): Use free_delayed_set_stat.
* src/misc.c (safer_rmdir): Remove delayed_set_stat entry
corresponding to the removed directory.
* tests/incr10.at: New test case.
* tests/Makefile.am: Add new test.
* tests/testsuite.at: Likewise.
---
 src/common.h       |  2 ++
 src/extract.c      | 38 +++++++++++++++++++++++++++-----
 src/misc.c         |  7 +++++-
 tests/Makefile.am  |  1 +
 tests/incr10.at    | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/testsuite.at |  1 +
 6 files changed, 107 insertions(+), 6 deletions(-)
 create mode 100644 tests/incr10.at

diff --git a/src/common.h b/src/common.h
index 20cbb64..2904183 100644
--- a/src/common.h
+++ b/src/common.h
@@ -523,6 +523,8 @@ void extract_archive (void);
 void extract_finish (void);
 bool rename_directory (char *src, char *dst);
 
+void remove_delayed_set_stat (const char *fname);
+
 /* Module delete.c.  */
 
 void delete_archive_members (void);
diff --git a/src/extract.c b/src/extract.c
index ca25603..5aaeb1b 100644
--- a/src/extract.c
+++ b/src/extract.c
@@ -537,6 +537,38 @@ repair_delayed_set_stat (char const *dir,
 	  quotearg_colon (dir)));
 }
 
+static void
+free_delayed_set_stat (struct delayed_set_stat *data)
+{
+  xheader_xattr_free (data->xattr_map, data->xattr_map_size);
+  free (data->cntx_name);
+  free (data->acls_a_ptr);
+  free (data->acls_d_ptr);
+  free (data);
+}
+
+void
+remove_delayed_set_stat (const char *fname)
+{
+  struct delayed_set_stat *data, *next, *prev = NULL;
+  for (data = delayed_set_stat_head; data; data = next)
+    {
+      next = data->next;
+      if (chdir_current == data->change_dir
+	  && strcmp (data->file_name, fname) == 0)
+	{
+	  free_delayed_set_stat (data);
+	  if (prev)
+	    prev->next = next;
+	  else
+	    delayed_set_stat_head = next;
+	  return;
+	}
+      else
+	prev = data;
+    }
+}
+
 /* After a file/link/directory creation has failed, see if
    it's because some required directory was not present, and if so,
    create all required directories.  Return zero if all the required
@@ -846,11 +878,7 @@ apply_nonancestor_delayed_set_stat (char const *file_name, bool after_links)
 	}
 
       delayed_set_stat_head = data->next;
-      xheader_xattr_free (data->xattr_map, data->xattr_map_size);
-      free (data->cntx_name);
-      free (data->acls_a_ptr);
-      free (data->acls_d_ptr);
-      free (data);
+      free_delayed_set_stat (data);
     }
 }
 
diff --git a/src/misc.c b/src/misc.c
index 8e66643..d263c07 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -586,7 +586,12 @@ safer_rmdir (const char *file_name)
       return -1;
     }
 
-  return unlinkat (chdir_fd, file_name, AT_REMOVEDIR);
+  if (unlinkat (chdir_fd, file_name, AT_REMOVEDIR) == 0)
+    {
+      remove_delayed_set_stat (file_name);
+      return 0;
+    }
+  return -1;
 }
 
 /* Remove FILE_NAME, returning 1 on success.  If FILE_NAME is a directory,
-- 
2.3.5