/* 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, 2007 Free Software Foundation, Inc.
+ 2001, 2003, 2004, 2005, 2006, 2007, 2010 Free Software Foundation, Inc.
Written by John Gilmore, on 1985-08-26.
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);
prev_status = status;
tar_stat_destroy (¤t_stat_info);
- status = read_header (false);
+ status = read_header (¤t_header, ¤t_stat_info, false);
switch (status)
{
case HEADER_STILL_UNREAD:
{
char buf[UINTMAX_STRSIZE_BOUND];
- status = read_header (false);
+ status = read_header (¤t_header, ¤t_stat_info, false);
if (status == HEADER_ZERO_BLOCK)
break;
WARNOPT (WARN_ALONE_ZERO_BLOCK,
list_archive (void)
{
off_t block_ordinal = current_block_ordinal ();
- /* Print the header block. */
+ /* Print the header block. */
+
decode_header (current_header, ¤t_stat_info, ¤t_format, 0);
if (verbose_option)
- print_header (¤t_stat_info, block_ordinal);
+ print_header (¤t_stat_info, current_header, block_ordinal);
if (incremental_option)
{
the header which this routine reads. */
enum read_header
-read_header_primitive (bool raw_extended_headers, struct tar_stat_info *info)
+read_header (union block **return_block, struct tar_stat_info *info,
+ bool raw_extended_headers)
{
union block *header;
union block *header_copy;
enum read_header status;
header = find_next_block ();
- current_header = header;
+ *return_block = header;
if (!header)
return HEADER_END_OF_FILE;
else if (header->header.typeflag == XGLTYPE)
{
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));
else
{
char const *name;
- struct posix_header const *h = ¤t_header->header;
+ struct posix_header const *h = &header->header;
char namebuf[sizeof h->prefix + 1 + NAME_FIELD_SIZE + 1];
if (recent_long_name)
}
}
-enum read_header
-read_header (bool raw_extended_headers)
-{
- return read_header_primitive (raw_extended_headers, ¤t_stat_info);
-}
-
static char *
decode_xform (char *file_name, void *data)
{
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
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 pad;
int sizelen;
- if (test_label_option && current_header->header.typeflag != GNUTYPE_VOLHDR)
+ if (test_label_option && blk->header.typeflag != GNUTYPE_VOLHDR)
return;
if (show_transformed_names_option)
/* File type and modes. */
modes[0] = '?';
- switch (current_header->header.typeflag)
+ switch (blk->header.typeflag)
{
case GNUTYPE_VOLHDR:
+ volume_label_printed = true;
modes[0] = 'V';
break;
/* 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);
else
{
sprintf (uform, "%ld",
- (long) UID_FROM_HEADER (current_header->header.uid));
+ (long) UID_FROM_HEADER (blk->header.uid));
user = uform;
}
}
/* 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);
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. */
- switch (current_header->header.typeflag)
+ switch (blk->header.typeflag)
{
case CHRTYPE:
case BLKTYPE:
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));
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));
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;
fflush (stdlis);
}
+
+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;
+
+ 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);
+}
+
/* Print a similar line when we make a directory automatically. */
void
print_for_mkdir (char *dirname, int length, mode_t mode)
projects / chaz / tar / blobdiff