prev_status = status;
tar_stat_destroy (¤t_stat_info);
- status = read_header (¤t_header, ¤t_stat_info, false);
+ status = read_header (¤t_header, ¤t_stat_info,
+ read_header_auto);
switch (status)
{
case HEADER_STILL_UNREAD:
{
char buf[UINTMAX_STRSIZE_BOUND];
- status = read_header (¤t_header, ¤t_stat_info, false);
+ status = read_header (¤t_header, ¤t_stat_info,
+ read_header_auto);
if (status == HEADER_ZERO_BLOCK)
break;
WARNOPT (WARN_ALONE_ZERO_BLOCK,
}
/* 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
- and names (file name, link name) in *info.
+ 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
read_header (union block **return_block, struct tar_stat_info *info,
- bool raw_extended_headers)
+ enum read_header_mode mode)
{
union block *header;
union block *header_copy;
|| 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)
OFF_FROM_HEADER (header->header.size));
xheader_decode_global (&xhdr);
xheader_destroy (&xhdr);
+ if (mode == read_header_x_global)
+ return HEADER_SUCCESS_EXTENDED;
}
/* Loop! */
{
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;
int pad;
int sizelen;
- if (test_label_option && blk->header.typeflag != GNUTYPE_VOLHDR)
- return;
-
if (show_transformed_names_option)
temp_name = st->file_name ? st->file_name : st->orig_file_name;
else
}
+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)
{
- struct tar_stat_info vstat;
- union block vblk;
- enum archive_format dummy;
-
+ print_volume_label ();
volume_label_printed = true;
-
- 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, block_ordinal);
- tar_stat_destroy (&vstat);
}
+
simple_print_header (st, blk, block_ordinal);
}
mv_end ();
}
}
+
+void
+test_archive_label ()
+{
+ base64_init ();
+ name_gather ();
+
+ open_archive (ACCESS_READ);
+ if (read_header (¤t_header, ¤t_stat_info, read_header_auto)
+ == HEADER_SUCCESS)
+ {
+ char *s = NULL;
+
+ decode_header (current_header,
+ ¤t_stat_info, ¤t_format, 0);
+ if (current_header->header.typeflag == GNUTYPE_VOLHDR)
+ assign_string (&volume_label, current_header->header.name);
+
+ if (volume_label
+ && (name_match (volume_label)
+ || (multi_volume_option
+ && (s = drop_volume_label_suffix (volume_label))
+ && name_match (s))))
+ if (verbose_option)
+ print_volume_label ();
+ free (s);
+ }
+ close_archive ();
+ names_notfound ();
+}