Update copyright years.

[chaz/tar] / src / update.c

diff --git a/src/update.c b/src/update.c
index b9987afe2935d4a84253735bcc9bfc335d166eb8..e9fad3f2ae48ab6a196c9b6aa85d4a76da9192ad 100644 (file)
--- a/src/update.c
+++ b/src/update.c
@@ -1,28 +1,29 @@
 /* Update a tar archive.
 
-   Copyright (C) 1988, 1992, 1994, 1996, 1997, 1999, 2000, 2001, 2003,
-   2004 Free Software Foundation, Inc.
+   Copyright 1988, 1992, 1994, 1996-1997, 1999-2001, 2003-2005, 2007,
+   2010, 2013-2014 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any later
-   version.
+   This file is part of GNU tar.
 
-   This program is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
-   Public License for more details.
+   GNU tar is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation, Inc.,
-   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   GNU tar is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Implement the 'r', 'u' and 'A' options for tar.  'A' means that the
    file names are tar files, and they should simply be appended to the end
    of the archive.  No attempt is made to record the reads from the args; if
    they're on raw tape or something like that, it'll probably lose...  */
 
-#include "system.h"
+#include <system.h>
 #include <quotearg.h>
 #include "common.h"
 
@@ -47,7 +48,7 @@ char *output_start;
 static void
 append_file (char *file_name)
 {
-  int handle = open (file_name, O_RDONLY | O_BINARY);
+  int handle = openat (chdir_fd, file_name, O_RDONLY | O_BINARY);
   struct stat stat_data;
 
   if (handle < 0)
@@ -106,15 +107,17 @@ void
 update_archive (void)
 {
   enum read_header previous_status = HEADER_STILL_UNREAD;
-  int found_end = 0;
+  bool found_end = false;
 
   name_gather ();
   open_archive (ACCESS_UPDATE);
-  xheader_write_global ();
+  buffer_write_global_xheader ();
 
   while (!found_end)
     {
-      enum read_header status = read_header (false);
+      enum read_header status = read_header (&current_header,
+                                             &current_stat_info,
+                                             read_header_auto);
 
       switch (status)
        {
@@ -126,30 +129,55 @@ update_archive (void)
          {
            struct name *name;
 
+           decode_header (current_header, &current_stat_info,
+                          &current_format, 0);
+           transform_stat_info (current_header->header.typeflag,
+                                &current_stat_info);
+           archive_format = current_format;
+
            if (subcommand_option == UPDATE_SUBCOMMAND
                && (name = name_scan (current_stat_info.file_name)) != NULL)
              {
                struct stat s;
-               enum archive_format unused;
 
-               decode_header (current_header, &current_stat_info, &unused, 0);
                chdir_do (name->change_dir);
-               if (deref_stat (dereference_option,
-                               current_stat_info.file_name, &s) == 0
-                   && s.st_mtime <= current_stat_info.stat.st_mtime)
-                 add_avoided_name (current_stat_info.file_name);
+               if (deref_stat (current_stat_info.file_name, &s) == 0)
+                 {
+                   if (S_ISDIR (s.st_mode))
+                     {
+                       char *p, *dirp = tar_savedir (name->name, 1);
+                       if (dirp)
+                         {
+                           namebuf_t nbuf = namebuf_create (name->name);
+
+                           for (p = dirp; *p; p += strlen (p) + 1)
+                             addname (namebuf_name (nbuf, p),
+                                      0, false, NULL);
+
+                           namebuf_free (nbuf);
+                           free (dirp);
+
+                           remname (name);
+                         }
+                     }
+                   else if (tar_timespec_cmp (get_stat_mtime (&s),
+                                              current_stat_info.mtime)
+                            <= 0)
+                     remname (name);
+                 }
              }
+
            skip_member ();
            break;
          }
 
        case HEADER_ZERO_BLOCK:
          current_block = current_header;
-         found_end = 1;
+         found_end = true;
          break;
 
        case HEADER_END_OF_FILE:
-         found_end = 1;
+         found_end = true;
          break;
 
        case HEADER_FAILURE:
@@ -175,6 +203,7 @@ update_archive (void)
          break;
        }
 
+      tar_stat_destroy (&current_stat_info);
       previous_status = status;
     }
 
@@ -183,10 +212,10 @@ update_archive (void)
   output_start = current_block->buffer;
 
   {
-    char *file_name;
-
-    while ((file_name = name_from_list ()) != NULL)
+    struct name const *p;
+    while ((p = name_from_list ()) != NULL)
       {
+       char *file_name = p->name;
        if (excluded_name (file_name))
          continue;
        if (interactive_option && !confirm ("add", file_name))
@@ -194,11 +223,12 @@ update_archive (void)
        if (subcommand_option == CAT_SUBCOMMAND)
          append_file (file_name);
        else
-         dump_file (file_name, 1, (dev_t) 0);
+         dump_file (0, file_name, file_name);
       }
   }
 
   write_eot ();
   close_archive ();
+  finish_deferred_unlinks ();
   names_notfound ();
 }