Fix `--test-label' and `--label -r' behavior.

[chaz/tar] / src / list.c

diff --git a/src/list.c b/src/list.c
index 2d05873d846b327a3e91aa4e6452ebf9865d5b39..0474fb1e5ad40a02cab4f5c76f076ed7e1e9ffc3 100644 (file)
--- a/src/list.c
+++ b/src/list.c
@@ -1,13 +1,13 @@
 /* List a tar archive, with support routines for reading a tar archive.
 
    Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000,
 /* List a tar archive, with support routines for reading a tar archive.
 
    Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000,

-   2001, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   2001, 2003, 2004, 2005, 2006, 2007, 2010 Free Software Foundation, Inc.

 
    Written by John Gilmore, on 1985-08-26.
 
    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
 
    Written by John Gilmore, on 1985-08-26.
 
    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
+   Free Software Foundation; either version 3, or (at your option) any later

    version.
 
    This program is distributed in the hope that it will be useful, but
    version.
 
    This program is distributed in the hope that it will be useful, but


@@ -33,6 +33,7 @@ union block *recent_long_name;        /* recent long name header and contents */
 union block *recent_long_link; /* likewise, for long link */
 size_t recent_long_name_blocks;        /* number of blocks in recent_long_name */
 size_t recent_long_link_blocks;        /* likewise, for long link */
 union block *recent_long_link; /* likewise, for long link */
 size_t recent_long_name_blocks;        /* number of blocks in recent_long_name */
 size_t recent_long_link_blocks;        /* likewise, for long link */

+union block *recent_global_header; /* Recent global header block */

 
 static uintmax_t from_header (const char *, size_t, const char *,
                              uintmax_t, uintmax_t, bool, bool);
 
 static uintmax_t from_header (const char *, size_t, const char *,
                              uintmax_t, uintmax_t, bool, bool);


@@ -76,9 +77,9 @@ read_and (void (*do_something) (void))
     {
       prev_status = status;
       tar_stat_destroy (&current_stat_info);
     {
       prev_status = status;
       tar_stat_destroy (&current_stat_info);

-      xheader_destroy (&extended_header);

 
 

-      status = read_header (false);
+      status = read_header (&current_header, &current_stat_info, 
+                            read_header_auto);

       switch (status)
        {
        case HEADER_STILL_UNREAD:
       switch (status)
        {
        case HEADER_STILL_UNREAD:


@@ -107,7 +108,6 @@ read_and (void (*do_something) (void))
                {
                case GNUTYPE_VOLHDR:
                case GNUTYPE_MULTIVOL:
                {
                case GNUTYPE_VOLHDR:
                case GNUTYPE_MULTIVOL:

-               case GNUTYPE_NAMES:

                  break;
 
                case DIRTYPE:
                  break;
 
                case DIRTYPE:


@@ -140,11 +140,13 @@ read_and (void (*do_something) (void))
            {
              char buf[UINTMAX_STRSIZE_BOUND];
 
            {
              char buf[UINTMAX_STRSIZE_BOUND];
 

-             status = read_header (false);
+             status = read_header (&current_header, &current_stat_info, 
+                                   read_header_auto);

              if (status == HEADER_ZERO_BLOCK)
                break;
              if (status == HEADER_ZERO_BLOCK)
                break;

-             WARN ((0, 0, _("A lone zero block at %s"),
-                    STRINGIFY_BIGINT (current_block_ordinal (), buf)));
+             WARNOPT (WARN_ALONE_ZERO_BLOCK,
+                      (0, 0, _("A lone zero block at %s"),
+                       STRINGIFY_BIGINT (current_block_ordinal (), buf)));

              break;
            }
          status = prev_status;
              break;
            }
          status = prev_status;


@@ -206,11 +208,12 @@ void
 list_archive (void)
 {
   off_t block_ordinal = current_block_ordinal ();
 list_archive (void)
 {
   off_t block_ordinal = current_block_ordinal ();

-  /* Print the header block.  */

 
 

+  /* Print the header block.  */
+  

   decode_header (current_header, &current_stat_info, &current_format, 0);
   if (verbose_option)
   decode_header (current_header, &current_stat_info, &current_format, 0);
   if (verbose_option)

-    print_header (&current_stat_info, block_ordinal);
+    print_header (&current_stat_info, current_header, block_ordinal);

 
   if (incremental_option)
     {
 
   if (incremental_option)
     {


@@ -281,20 +284,29 @@ tar_checksum (union block *header, bool silent)
 }
 
 /* Read a block that's supposed to be a header block.  Return its
 }
 
 /* Read a block that's supposed to be a header block.  Return its

-   address in "current_header", and if it is good, the file's size in
-   current_stat_info.stat.st_size.
+   address in *RETURN_BLOCK, and if it is good, the file's size
+   and names (file name, link name) in *INFO.

 
 

-   Return 1 for success, 0 if the checksum is bad, EOF on eof, 2 for a
-   block full of zeros (EOF marker).
+   Return one of enum read_header describing the status of the
+   operation.

 
 

-   If RAW_EXTENDED_HEADERS is nonzero, do not automagically fold the
-   GNU long name and link headers into later headers.
+   The MODE parameter instructs read_header what to do with special
+   header blocks, i.e.: extended POSIX, GNU long name or long link,
+   etc.:

 
 

-   You must always set_next_block_after(current_header) to skip past
+     read_header_auto        process them automatically,
+     read_header_x_raw       when a special header is read, return
+                             HEADER_SUCCESS_EXTENDED without actually
+                            processing the header,
+     read_header_x_global    when a POSIX global header is read,
+                             decode it and return HEADER_SUCCESS_EXTENDED.
+
+   You must always set_next_block_after(*return_block) to skip past

    the header which this routine reads.  */
 
 enum read_header
    the header which this routine reads.  */
 
 enum read_header

-read_header (bool raw_extended_headers)
+read_header (union block **return_block, struct tar_stat_info *info,
+            enum read_header_mode mode)

 {
   union block *header;
   union block *header_copy;
 {
   union block *header;
   union block *header_copy;


@@ -303,15 +315,15 @@ read_header (bool raw_extended_headers)
   size_t size, written;
   union block *next_long_name = 0;
   union block *next_long_link = 0;
   size_t size, written;
   union block *next_long_name = 0;
   union block *next_long_link = 0;

-  size_t next_long_name_blocks;
-  size_t next_long_link_blocks;
+  size_t next_long_name_blocks = 0;
+  size_t next_long_link_blocks = 0;

 
   while (1)
     {
       enum read_header status;
 
       header = find_next_block ();
 
   while (1)
     {
       enum read_header status;
 
       header = find_next_block ();

-      current_header = header;
+      *return_block = header;

       if (!header)
        return HEADER_END_OF_FILE;
 
       if (!header)
        return HEADER_END_OF_FILE;
 


@@ -321,9 +333,9 @@ read_header (bool raw_extended_headers)
       /* Good block.  Decode file size and return.  */
 
       if (header->header.typeflag == LNKTYPE)
       /* Good block.  Decode file size and return.  */
 
       if (header->header.typeflag == LNKTYPE)

-       current_stat_info.stat.st_size = 0;     /* links 0 size on tape */
+       info->stat.st_size = 0; /* links 0 size on tape */

       else
       else

-       current_stat_info.stat.st_size = OFF_FROM_HEADER (header->header.size);
+       info->stat.st_size = OFF_FROM_HEADER (header->header.size);

 
       if (header->header.typeflag == GNUTYPE_LONGNAME
          || header->header.typeflag == GNUTYPE_LONGLINK
 
       if (header->header.typeflag == GNUTYPE_LONGNAME
          || header->header.typeflag == GNUTYPE_LONGLINK


@@ -331,19 +343,18 @@ read_header (bool raw_extended_headers)
          || header->header.typeflag == XGLTYPE
          || header->header.typeflag == SOLARIS_XHDTYPE)
        {
          || header->header.typeflag == XGLTYPE
          || header->header.typeflag == SOLARIS_XHDTYPE)
        {

-         if (raw_extended_headers)
+         if (mode == read_header_x_raw)

            return HEADER_SUCCESS_EXTENDED;
          else if (header->header.typeflag == GNUTYPE_LONGNAME
                   || header->header.typeflag == GNUTYPE_LONGLINK)
            {
            return HEADER_SUCCESS_EXTENDED;
          else if (header->header.typeflag == GNUTYPE_LONGNAME
                   || header->header.typeflag == GNUTYPE_LONGLINK)
            {

-             size_t name_size = current_stat_info.stat.st_size;
+             size_t name_size = info->stat.st_size;

              size_t n = name_size % BLOCKSIZE;
              size = name_size + BLOCKSIZE;
              if (n)
                size += BLOCKSIZE - n;
 
              size_t n = name_size % BLOCKSIZE;
              size = name_size + BLOCKSIZE;
              if (n)
                size += BLOCKSIZE - n;
 

-             if (name_size != current_stat_info.stat.st_size
-                 || size < name_size)
+             if (name_size != info->stat.st_size || size < name_size)

                xalloc_die ();
 
              header_copy = xmalloc (size + 1);
                xalloc_die ();
 
              header_copy = xmalloc (size + 1);


@@ -389,12 +400,23 @@ read_header (bool raw_extended_headers)
            }
          else if (header->header.typeflag == XHDTYPE
                   || header->header.typeflag == SOLARIS_XHDTYPE)
            }
          else if (header->header.typeflag == XHDTYPE
                   || header->header.typeflag == SOLARIS_XHDTYPE)

-           xheader_read (header, OFF_FROM_HEADER (header->header.size));
+           xheader_read (&info->xhdr, header,
+                         OFF_FROM_HEADER (header->header.size));

          else if (header->header.typeflag == XGLTYPE)
            {
          else if (header->header.typeflag == XGLTYPE)
            {

-             xheader_read (header, OFF_FROM_HEADER (header->header.size));
-             xheader_decode_global ();
-             xheader_destroy (&extended_header);
+             struct xheader xhdr;
+
+             if (!recent_global_header)
+               recent_global_header = xmalloc (sizeof *recent_global_header);
+             memcpy (recent_global_header, header,
+                     sizeof *recent_global_header);
+             memset (&xhdr, 0, sizeof xhdr);
+             xheader_read (&xhdr, header,
+                           OFF_FROM_HEADER (header->header.size));
+             xheader_decode_global (&xhdr);
+             xheader_destroy (&xhdr);
+             if (mode == read_header_x_global)
+               return HEADER_SUCCESS_EXTENDED;

            }
 
          /* Loop!  */
            }
 
          /* Loop!  */


@@ -403,7 +425,7 @@ read_header (bool raw_extended_headers)
       else
        {
          char const *name;
       else
        {
          char const *name;

-         struct posix_header const *h = &current_header->header;
+         struct posix_header const *h = &header->header;

          char namebuf[sizeof h->prefix + 1 + NAME_FIELD_SIZE + 1];
 
          if (recent_long_name)
          char namebuf[sizeof h->prefix + 1 + NAME_FIELD_SIZE + 1];
 
          if (recent_long_name)


@@ -434,9 +456,9 @@ read_header (bool raw_extended_headers)
              recent_long_name = 0;
              recent_long_name_blocks = 0;
            }
              recent_long_name = 0;
              recent_long_name_blocks = 0;
            }

-         assign_string (&current_stat_info.orig_file_name, name);
-         assign_string (&current_stat_info.file_name, name);
-         current_stat_info.had_trailing_slash = strip_trailing_slashes (current_stat_info.file_name);
+         assign_string (&info->orig_file_name, name);
+         assign_string (&info->file_name, name);
+         info->had_trailing_slash = strip_trailing_slashes (info->file_name);

 
          if (recent_long_link)
            free (recent_long_link);
 
          if (recent_long_link)
            free (recent_long_link);


@@ -455,13 +477,54 @@ read_header (bool raw_extended_headers)
              recent_long_link = 0;
              recent_long_link_blocks = 0;
            }
              recent_long_link = 0;
              recent_long_link_blocks = 0;
            }

-         assign_string (&current_stat_info.link_name, name);
+         assign_string (&info->link_name, name);

 
          return HEADER_SUCCESS;
        }
     }
 }
 
 
          return HEADER_SUCCESS;
        }
     }
 }
 

+static char *
+decode_xform (char *file_name, void *data)
+{
+  int type = *(int*)data;
+
+  switch (type)
+    {
+    case XFORM_SYMLINK:
+      /* FIXME: It is not quite clear how and to which extent are the symbolic
+        links subject to filename transformation.  In the absence of another
+        solution, symbolic links are exempt from component stripping and
+        name suffix normalization, but subject to filename transformation
+        proper. */ 
+      return file_name;
+      
+    case XFORM_LINK:
+      file_name = safer_name_suffix (file_name, true, absolute_names_option);
+      break;
+      
+    case XFORM_REGFILE:
+      file_name = safer_name_suffix (file_name, false, absolute_names_option);
+      break;
+    }
+  
+  if (strip_name_components)
+    {
+      size_t prefix_len = stripped_prefix_len (file_name,
+                                              strip_name_components);
+      if (prefix_len == (size_t) -1)
+       prefix_len = strlen (file_name);
+      file_name += prefix_len;
+    }
+  return file_name;
+}
+
+bool
+transform_member_name (char **pinput, int type)
+{
+  return transform_name_fp (pinput, type, decode_xform, &type);
+}
+

 #define ISOCTAL(c) ((c)>='0'&&(c)<='7')
 
 /* Decode things from a file HEADER block into STAT_INFO, also setting
 #define ISOCTAL(c) ((c)>='0'&&(c)<='7')
 
 /* Decode things from a file HEADER block into STAT_INFO, also setting


@@ -482,7 +545,9 @@ decode_header (union block *header, struct tar_stat_info *stat_info,
               enum archive_format *format_pointer, int do_user_group)
 {
   enum archive_format format;
               enum archive_format *format_pointer, int do_user_group)
 {
   enum archive_format format;

-
+  unsigned hbits; /* high bits of the file mode. */
+  mode_t mode = MODE_FROM_HEADER (header->header.mode, &hbits);
+  

   if (strcmp (header->header.magic, TMAGIC) == 0)
     {
       if (header->star_header.prefix[130] == 0
   if (strcmp (header->header.magic, TMAGIC) == 0)
     {
       if (header->star_header.prefix[130] == 0


@@ -491,18 +556,18 @@ decode_header (union block *header, struct tar_stat_info *stat_info,
          && ISOCTAL (header->star_header.ctime[0])
          && header->star_header.ctime[11] == ' ')
        format = STAR_FORMAT;
          && ISOCTAL (header->star_header.ctime[0])
          && header->star_header.ctime[11] == ' ')
        format = STAR_FORMAT;

-      else if (extended_header.size)
+      else if (stat_info->xhdr.size)

        format = POSIX_FORMAT;
       else
        format = USTAR_FORMAT;
     }
   else if (strcmp (header->header.magic, OLDGNU_MAGIC) == 0)
        format = POSIX_FORMAT;
       else
        format = USTAR_FORMAT;
     }
   else if (strcmp (header->header.magic, OLDGNU_MAGIC) == 0)

-    format = OLDGNU_FORMAT;
+    format = hbits ? OLDGNU_FORMAT : GNU_FORMAT;

   else
     format = V7_FORMAT;
   *format_pointer = format;
 
   else
     format = V7_FORMAT;
   *format_pointer = format;
 

-  stat_info->stat.st_mode = MODE_FROM_HEADER (header->header.mode);
+  stat_info->stat.st_mode = mode;

   stat_info->mtime.tv_sec = TIME_FROM_HEADER (header->header.mtime);
   stat_info->mtime.tv_nsec = 0;
   assign_string (&stat_info->uname,
   stat_info->mtime.tv_sec = TIME_FROM_HEADER (header->header.mtime);
   stat_info->mtime.tv_nsec = 0;
   assign_string (&stat_info->uname,


@@ -579,6 +644,17 @@ decode_header (union block *header, struct tar_stat_info *stat_info,
           || stat_info->dumpdir)
        stat_info->is_dumpdir = true;
     }
           || stat_info->dumpdir)
        stat_info->is_dumpdir = true;
     }

+
+  transform_member_name (&stat_info->file_name, XFORM_REGFILE);
+  switch (header->header.typeflag)
+    {
+    case SYMTYPE:
+      transform_member_name (&stat_info->link_name, XFORM_SYMLINK);
+      break;
+      
+    case LNKTYPE:
+      transform_member_name (&stat_info->link_name, XFORM_LINK);
+    }

 }
 
 /* Convert buffer at WHERE0 of size DIGS from external format to
 }
 
 /* Convert buffer at WHERE0 of size DIGS from external format to


@@ -608,7 +684,8 @@ from_header (char const *where0, size_t digs, char const *type,
        {
          if (type && !silent)
            ERROR ((0, 0,
        {
          if (type && !silent)
            ERROR ((0, 0,

-                   /* TRANSLATORS: %s is type of the value (gid_t, uid_t, etc.) */
+                   /* TRANSLATORS: %s is type of the value (gid_t, uid_t,
+                      etc.) */

                    _("Blanks in header where numeric %s value expected"),
                    type));
          return -1;
                    _("Blanks in header where numeric %s value expected"),
                    type));
          return -1;


@@ -825,25 +902,28 @@ minor_from_header (const char *p, size_t s)
                      (uintmax_t) TYPE_MAXIMUM (minor_t), false, false);
 }
 
                      (uintmax_t) TYPE_MAXIMUM (minor_t), false, false);
 }
 

+/* Convert P to the file mode, as understood by tar.
+   Store unrecognized mode bits (from 10th up) in HBITS. */

 mode_t
 mode_t

-mode_from_header (const char *p, size_t s)
+mode_from_header (const char *p, size_t s, unsigned *hbits)

 {
 {

-  /* Do not complain about unrecognized mode bits.  */

   unsigned u = from_header (p, s, "mode_t",
                            - (uintmax_t) TYPE_MINIMUM (mode_t),
                            TYPE_MAXIMUM (uintmax_t), false, false);
   unsigned u = from_header (p, s, "mode_t",
                            - (uintmax_t) TYPE_MINIMUM (mode_t),
                            TYPE_MAXIMUM (uintmax_t), false, false);

-  return ((u & TSUID ? S_ISUID : 0)
-         | (u & TSGID ? S_ISGID : 0)
-         | (u & TSVTX ? S_ISVTX : 0)
-         | (u & TUREAD ? S_IRUSR : 0)
-         | (u & TUWRITE ? S_IWUSR : 0)
-         | (u & TUEXEC ? S_IXUSR : 0)
-         | (u & TGREAD ? S_IRGRP : 0)
-         | (u & TGWRITE ? S_IWGRP : 0)
-         | (u & TGEXEC ? S_IXGRP : 0)
-         | (u & TOREAD ? S_IROTH : 0)
-         | (u & TOWRITE ? S_IWOTH : 0)
-         | (u & TOEXEC ? S_IXOTH : 0));
+  mode_t mode = ((u & TSUID ? S_ISUID : 0)
+                | (u & TSGID ? S_ISGID : 0)
+                | (u & TSVTX ? S_ISVTX : 0)
+                | (u & TUREAD ? S_IRUSR : 0)
+                | (u & TUWRITE ? S_IWUSR : 0)
+                | (u & TUEXEC ? S_IXUSR : 0)
+                | (u & TGREAD ? S_IRGRP : 0)
+                | (u & TGWRITE ? S_IWGRP : 0)
+                | (u & TGEXEC ? S_IXGRP : 0)
+                | (u & TOREAD ? S_IROTH : 0)
+                | (u & TOWRITE ? S_IWOTH : 0)
+                | (u & TOEXEC ? S_IXOTH : 0));
+  *hbits = mode ^ u;
+  return mode;

 }
 
 off_t
 }
 
 off_t


@@ -954,9 +1034,6 @@ tartime (struct timespec t, bool full_time)
    they shouldn't.  Unix tar is pretty random here anyway.  */
 
 
    they shouldn't.  Unix tar is pretty random here anyway.  */
 
 

-/* FIXME: Note that print_header uses the globals HEAD, HSTAT, and
-   HEAD_STANDARD, which must be set up in advance.  Not very clean..  */
-

 /* Width of "user/group size", with initial value chosen
    heuristically.  This grows as needed, though this may cause some
    stairstepping in the output.  Make it too small and the output will
 /* Width of "user/group size", with initial value chosen
    heuristically.  This grows as needed, though this may cause some
    stairstepping in the output.  Make it too small and the output will


@@ -969,13 +1046,16 @@ static int ugswidth = 19;
    USGWIDTH, some stairstepping may occur.  */
 static int datewidth = sizeof "YYYY-MM-DD HH:MM" - 1;
 
    USGWIDTH, some stairstepping may occur.  */
 static int datewidth = sizeof "YYYY-MM-DD HH:MM" - 1;
 

-void
-print_header (struct tar_stat_info *st, off_t block_ordinal)
+static bool volume_label_printed = false;
+
+static void
+simple_print_header (struct tar_stat_info *st, union block *blk,
+                    off_t block_ordinal)

 {
   char modes[11];
   char const *time_stamp;
   int time_stamp_len;
 {
   char modes[11];
   char const *time_stamp;
   int time_stamp_len;

-  char *temp_name = st->orig_file_name ? st->orig_file_name : st->file_name;
+  char *temp_name;

 
   /* These hold formatted ints.  */
   char uform[UINTMAX_STRSIZE_BOUND], gform[UINTMAX_STRSIZE_BOUND];
 
   /* These hold formatted ints.  */
   char uform[UINTMAX_STRSIZE_BOUND], gform[UINTMAX_STRSIZE_BOUND];


@@ -986,24 +1066,8 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
   int pad;
   int sizelen;
 
   int pad;
   int sizelen;
 

-  if (test_label_option && current_header->header.typeflag != GNUTYPE_VOLHDR)
-    return;
-
-  if (show_stored_names_option)
-    {
-      switch (subcommand_option)
-       {
-       case CAT_SUBCOMMAND:
-       case UPDATE_SUBCOMMAND:
-       case APPEND_SUBCOMMAND:
-       case CREATE_SUBCOMMAND:
-         temp_name = st->file_name ? st->file_name : st->orig_file_name;
-         break;
-
-       default:
-         temp_name = st->orig_file_name ? st->orig_file_name : st->file_name;
-       }
-    }
+  if (show_transformed_names_option)
+    temp_name = st->file_name ? st->file_name : st->orig_file_name;

   else
     temp_name = st->orig_file_name ? st->orig_file_name : st->file_name;
 
   else
     temp_name = st->orig_file_name ? st->orig_file_name : st->file_name;
 


@@ -1028,9 +1092,10 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
       /* File type and modes.  */
 
       modes[0] = '?';
       /* File type and modes.  */
 
       modes[0] = '?';

-      switch (current_header->header.typeflag)
+      switch (blk->header.typeflag)

        {
        case GNUTYPE_VOLHDR:
        {
        case GNUTYPE_VOLHDR:

+         volume_label_printed = true;

          modes[0] = 'V';
          break;
 
          modes[0] = 'V';
          break;
 


@@ -1038,10 +1103,6 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
          modes[0] = 'M';
          break;
 
          modes[0] = 'M';
          break;
 

-       case GNUTYPE_NAMES:
-         modes[0] = 'N';
-         break;
-

        case GNUTYPE_LONGNAME:
        case GNUTYPE_LONGLINK:
          modes[0] = 'L';
        case GNUTYPE_LONGNAME:
        case GNUTYPE_LONGLINK:
          modes[0] = 'L';


@@ -1102,8 +1163,8 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
          /* Try parsing it as an unsigned integer first, and as a
             uid_t if that fails.  This method can list positive user
             ids that are too large to fit in a uid_t.  */
          /* Try parsing it as an unsigned integer first, and as a
             uid_t if that fails.  This method can list positive user
             ids that are too large to fit in a uid_t.  */

-         uintmax_t u = from_header (current_header->header.uid,
-                                    sizeof current_header->header.uid, 0,
+         uintmax_t u = from_header (blk->header.uid,
+                                    sizeof blk->header.uid, 0,

                                     (uintmax_t) 0,
                                     (uintmax_t) TYPE_MAXIMUM (uintmax_t),
                                     false, false);
                                     (uintmax_t) 0,
                                     (uintmax_t) TYPE_MAXIMUM (uintmax_t),
                                     false, false);


@@ -1112,7 +1173,7 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
          else
            {
              sprintf (uform, "%ld",
          else
            {
              sprintf (uform, "%ld",

-                      (long) UID_FROM_HEADER (current_header->header.uid));
+                      (long) UID_FROM_HEADER (blk->header.uid));

              user = uform;
            }
        }
              user = uform;
            }
        }


@@ -1127,8 +1188,8 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
          /* Try parsing it as an unsigned integer first, and as a
             gid_t if that fails.  This method can list positive group
             ids that are too large to fit in a gid_t.  */
          /* Try parsing it as an unsigned integer first, and as a
             gid_t if that fails.  This method can list positive group
             ids that are too large to fit in a gid_t.  */

-         uintmax_t g = from_header (current_header->header.gid,
-                                    sizeof current_header->header.gid, 0,
+         uintmax_t g = from_header (blk->header.gid,
+                                    sizeof blk->header.gid, 0,

                                     (uintmax_t) 0,
                                     (uintmax_t) TYPE_MAXIMUM (uintmax_t),
                                     false, false);
                                     (uintmax_t) 0,
                                     (uintmax_t) TYPE_MAXIMUM (uintmax_t),
                                     false, false);


@@ -1137,14 +1198,14 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
          else
            {
              sprintf (gform, "%ld",
          else
            {
              sprintf (gform, "%ld",

-                      (long) GID_FROM_HEADER (current_header->header.gid));
+                      (long) GID_FROM_HEADER (blk->header.gid));

              group = gform;
            }
        }
 
       /* Format the file size or major/minor device numbers.  */
 
              group = gform;
            }
        }
 
       /* Format the file size or major/minor device numbers.  */
 

-      switch (current_header->header.typeflag)
+      switch (blk->header.typeflag)

        {
        case CHRTYPE:
        case BLKTYPE:
        {
        case CHRTYPE:
        case BLKTYPE:


@@ -1174,7 +1235,7 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
 
       fprintf (stdlis, " %s", quotearg (temp_name));
 
 
       fprintf (stdlis, " %s", quotearg (temp_name));
 

-      switch (current_header->header.typeflag)
+      switch (blk->header.typeflag)

        {
        case SYMTYPE:
          fprintf (stdlis, " -> %s\n", quotearg (st->link_name));
        {
        case SYMTYPE:
          fprintf (stdlis, " -> %s\n", quotearg (st->link_name));


@@ -1187,7 +1248,7 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
        default:
          {
            char type_string[2];
        default:
          {
            char type_string[2];

-           type_string[0] = current_header->header.typeflag;
+           type_string[0] = blk->header.typeflag;

            type_string[1] = '\0';
            fprintf (stdlis, _(" unknown file type %s\n"),
                     quote (type_string));
            type_string[1] = '\0';
            fprintf (stdlis, _(" unknown file type %s\n"),
                     quote (type_string));


@@ -1221,19 +1282,49 @@ print_header (struct tar_stat_info *st, off_t block_ordinal)
        case GNUTYPE_MULTIVOL:
          strcpy (size,
                  STRINGIFY_BIGINT
        case GNUTYPE_MULTIVOL:
          strcpy (size,
                  STRINGIFY_BIGINT

-                 (UINTMAX_FROM_HEADER (current_header->oldgnu_header.offset),
+                 (UINTMAX_FROM_HEADER (blk->oldgnu_header.offset),

                   uintbuf));
          fprintf (stdlis, _("--Continued at byte %s--\n"), size);
          break;
                   uintbuf));
          fprintf (stdlis, _("--Continued at byte %s--\n"), size);
          break;

-
-       case GNUTYPE_NAMES:
-         fprintf (stdlis, _("--Mangled file names--\n"));
-         break;

        }
     }
   fflush (stdlis);
 }
 
        }
     }
   fflush (stdlis);
 }
 

+
+void
+print_volume_label ()
+{
+  struct tar_stat_info vstat;
+  union block vblk;
+  enum archive_format dummy;
+
+  memset (&vblk, 0, sizeof (vblk));
+  vblk.header.typeflag = GNUTYPE_VOLHDR;
+  if (recent_global_header)
+    memcpy (vblk.header.mtime, recent_global_header->header.mtime,
+           sizeof vblk.header.mtime);
+  tar_stat_init (&vstat);
+  assign_string (&vstat.file_name, ".");
+  decode_header (&vblk, &vstat, &dummy, 0);
+  assign_string (&vstat.file_name, volume_label);
+  simple_print_header (&vstat, &vblk, 0);
+  tar_stat_destroy (&vstat);
+}
+
+void
+print_header (struct tar_stat_info *st, union block *blk,
+             off_t block_ordinal)
+{
+  if (current_format == POSIX_FORMAT && !volume_label_printed && volume_label)
+    {
+      print_volume_label ();
+      volume_label_printed = true;
+    }
+
+  simple_print_header (st, blk, block_ordinal);
+}
+

 /* Print a similar line when we make a directory automatically.  */
 void
 print_for_mkdir (char *dirname, int length, mode_t mode)
 /* Print a similar line when we make a directory automatically.  */
 void
 print_for_mkdir (char *dirname, int length, mode_t mode)


@@ -1310,3 +1401,34 @@ skip_member (void)
       mv_end ();
     }
 }
       mv_end ();
     }
 }

+
+void
+test_archive_label ()
+{
+  base64_init ();
+  name_gather ();
+
+  open_archive (ACCESS_READ);
+  if (read_header (&current_header, &current_stat_info, read_header_auto)
+      == HEADER_SUCCESS)
+    {
+      decode_header (current_header,
+                    &current_stat_info, &current_format, 0);
+      if (current_header->header.typeflag == GNUTYPE_VOLHDR)
+       assign_string (&volume_label, current_header->header.name);
+      
+      if (volume_label)
+       {
+         if (verbose_option)
+           print_volume_label ();
+         if (!name_match (volume_label) && multi_volume_option)
+           {
+             char *s = drop_volume_label_suffix (volume_label);
+             name_match (s);
+             free (s);
+           }
+       }
+    }
+  close_archive ();
+  label_notfound ();
+}