]> Dogcows Code - chaz/tar/blobdiff - src/list.c
Started merging with cpio into paxutils.
[chaz/tar] / src / list.c
index 6a58cd9f862287c7360619d3fd6ed3d3686611cb..0e5e205f9a4f43feb8a7fa052c4a7509c733335a 100644 (file)
@@ -1,5 +1,8 @@
 /* List a tar archive, with support routines for reading a tar archive.
-   Copyright 1988, 92,93,94,96,97,98,99, 2000 Free Software Foundation, Inc.
+
+   Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000,
+   2001, 2003, 2004 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
 /* Define to non-zero for forcing old ctime format instead of ISO format.  */
 #undef USE_OLD_CTIME
 
-#include "system.h"
+#include <system.h>
 #include <quotearg.h>
 
-#include <time.h>
-#ifndef time
-time_t time ();
-#endif
-
 #include "common.h"
 
 #define max(a, b) ((a) < (b) ? (b) : (a))
 
 union block *current_header;   /* points to current archive header */
-struct stat current_stat;      /* stat struct corresponding */
 enum archive_format current_format; /* recognized format */
+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 */
 
-static uintmax_t from_header PARAMS ((const char *, size_t, const char *,
-                                     uintmax_t, uintmax_t));
+static uintmax_t from_header (const char *, size_t, const char *,
+                             uintmax_t, uintmax_t);
 
 /* Base 64 digits; see Internet RFC 2045 Table 1.  */
 static char const base_64_digits[64] =
@@ -63,7 +64,7 @@ base64_init (void)
 
 /* Main loop for reading an archive.  */
 void
-read_and (void (*do_something) ())
+read_and (void (*do_something) (void))
 {
   enum read_header status = HEADER_STILL_UNREAD;
   enum read_header prev_status;
@@ -72,13 +73,17 @@ read_and (void (*do_something) ())
   name_gather ();
   open_archive (ACCESS_READ);
 
-  while (1)
+  do
     {
       prev_status = status;
-      status = read_header ();
+      tar_stat_destroy (&current_stat_info);
+      xheader_destroy (&extended_header);
+
+      status = read_header (false);
       switch (status)
        {
        case HEADER_STILL_UNREAD:
+       case HEADER_SUCCESS_EXTENDED:
          abort ();
 
        case HEADER_SUCCESS:
@@ -86,14 +91,19 @@ read_and (void (*do_something) ())
          /* Valid header.  We should decode next field (mode) first.
             Ensure incoming names are null terminated.  */
 
-         if (! name_match (current_file_name)
-             || (newer_mtime_option != TYPE_MINIMUM (time_t)
+         if (! name_match (current_stat_info.file_name)
+             || (NEWER_OPTION_INITIALIZED (newer_mtime_option)
                  /* FIXME: We get mtime now, and again later; this causes
                     duplicate diagnostics if header.mtime is bogus.  */
-                 && ((current_stat.st_mtime
-                      = TIME_FROM_HEADER (current_header->header.mtime))
-                     < newer_mtime_option))
-             || excluded_name (current_file_name))
+                 && ((current_stat_info.stat.st_mtime
+                      = TIME_FROM_HEADER (current_header->header.mtime)),
+#ifdef ST_MTIM_NSEC
+                     /* FIXME: Grab fractional time stamps from
+                        extended header.  */
+                     current_stat_info.stat.st_mtim.ST_MTIM_NSEC = 0,
+#endif
+                     OLDER_STAT_TIME (current_stat_info.stat, m)))
+             || excluded_name (current_stat_info.file_name))
            {
              switch (current_header->header.typeflag)
                {
@@ -101,17 +111,19 @@ read_and (void (*do_something) ())
                case GNUTYPE_MULTIVOL:
                case GNUTYPE_NAMES:
                  break;
-               
+
                case DIRTYPE:
                  if (show_omitted_dirs_option)
                    WARN ((0, 0, _("%s: Omitting"),
-                          quotearg_colon (current_file_name)));
+                          quotearg_colon (current_stat_info.file_name)));
                  /* Fall through.  */
                default:
+                 decode_header (current_header,
+                                &current_stat_info, &current_format, 0);
                  skip_member ();
                  continue;
                }
-             }
+           }
 
          (*do_something) ();
          continue;
@@ -125,10 +137,20 @@ read_and (void (*do_something) ())
            }
 
          set_next_block_after (current_header);
+
+         if (!ignore_zeros_option)
+           {
+             char buf[UINTMAX_STRSIZE_BOUND];
+
+             status = read_header (false);
+             if (status == HEADER_ZERO_BLOCK)
+               break;
+             WARN ((0, 0, _("A lone zero block at %s"),
+                    STRINGIFY_BIGINT (current_block_ordinal (), buf)));
+             break;
+           }
          status = prev_status;
-         if (ignore_zeros_option)
-           continue;
-         break;
+         continue;
 
        case HEADER_END_OF_FILE:
          if (block_number_option)
@@ -151,6 +173,15 @@ read_and (void (*do_something) ())
 
            case HEADER_ZERO_BLOCK:
            case HEADER_SUCCESS:
+             if (block_number_option)
+               {
+                 char buf[UINTMAX_STRSIZE_BOUND];
+                 off_t block_ordinal = current_block_ordinal ();
+                 block_ordinal -= recent_long_name_blocks;
+                 block_ordinal -= recent_long_link_blocks;
+                 fprintf (stdlis, _("block %s: "),
+                          STRINGIFY_BIGINT (block_ordinal, buf));
+               }
              ERROR ((0, 0, _("Skipping to next header")));
              break;
 
@@ -158,11 +189,15 @@ read_and (void (*do_something) ())
            case HEADER_FAILURE:
              /* We are in the middle of a cascade of errors.  */
              break;
+
+           case HEADER_SUCCESS_EXTENDED:
+             abort ();
            }
          continue;
        }
       break;
     }
+  while (!all_names_found (&current_stat_info));
 
   close_archive ();
   names_notfound ();           /* print names not found */
@@ -174,12 +209,9 @@ list_archive (void)
 {
   /* Print the header block.  */
 
+  decode_header (current_header, &current_stat_info, &current_format, 0);
   if (verbose_option)
-    {
-      if (verbose_option > 1)
-       decode_header (current_header, &current_stat, &current_format, 0);
-      print_header ();
-    }
+    print_header (&current_stat_info, -1);
 
   if (incremental_option && current_header->header.typeflag == GNUTYPE_DUMPDIR)
     {
@@ -190,10 +222,10 @@ list_archive (void)
       set_next_block_after (current_header);
       if (multi_volume_option)
        {
-         assign_string (&save_name, current_file_name);
-         save_totsize = current_stat.st_size;
+         assign_string (&save_name, current_stat_info.file_name);
+         save_totsize = current_stat_info.stat.st_size;
        }
-      for (size = current_stat.st_size; size > 0; size -= written)
+      for (size = current_stat_info.stat.st_size; size > 0; size -= written)
        {
          if (multi_volume_option)
            save_sizeleft = size;
@@ -212,7 +244,7 @@ list_archive (void)
                                (data_block->buffer + written - 1));
          if (check != written)
            {
-             write_error_details (current_file_name, check, written);
+             write_error_details (current_stat_info.file_name, check, written);
              skip_file (size - written);
              break;
            }
@@ -226,7 +258,7 @@ list_archive (void)
     }
 
   if (multi_volume_option)
-    assign_string (&save_name, current_file_name);
+    assign_string (&save_name, current_stat_info.file_name);
 
   skip_member ();
 
@@ -236,11 +268,14 @@ list_archive (void)
 
 /* 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.st_size.
+   current_stat_info.stat.st_size.
 
    Return 1 for success, 0 if the checksum is bad, EOF on eof, 2 for a
    block full of zeros (EOF marker).
 
+   If RAW_EXTENDED_HEADERS is nonzero, do not automagically fold the
+   GNU long name and link headers into later headers.
+
    You must always set_next_block_after(current_header) to skip past
    the header which this routine reads.  */
 
@@ -254,7 +289,7 @@ list_archive (void)
    computes two checksums -- signed and unsigned.  */
 
 enum read_header
-read_header (void)
+read_header (bool raw_extended_headers)
 {
   size_t i;
   int unsigned_sum;            /* the POSIX one :-) */
@@ -263,11 +298,14 @@ read_header (void)
   uintmax_t parsed_sum;
   char *p;
   union block *header;
-  char **longp;
+  union block *header_copy;
   char *bp;
   union block *data_block;
   size_t size, written;
-  static char *next_long_name, *next_long_link;
+  union block *next_long_name = 0;
+  union block *next_long_link = 0;
+  size_t next_long_name_blocks;
+  size_t next_long_link_blocks;
 
   while (1)
     {
@@ -313,41 +351,73 @@ read_header (void)
       /* Good block.  Decode file size and return.  */
 
       if (header->header.typeflag == LNKTYPE)
-       current_stat.st_size = 0;       /* links 0 size on tape */
+       current_stat_info.stat.st_size = 0;     /* links 0 size on tape */
       else
-       current_stat.st_size = OFF_FROM_HEADER (header->header.size);
+       current_stat_info.stat.st_size = OFF_FROM_HEADER (header->header.size);
 
       if (header->header.typeflag == GNUTYPE_LONGNAME
-         || header->header.typeflag == GNUTYPE_LONGLINK)
+         || header->header.typeflag == GNUTYPE_LONGLINK
+         || header->header.typeflag == XHDTYPE
+         || header->header.typeflag == XGLTYPE)
        {
-         longp = ((header->header.typeflag == GNUTYPE_LONGNAME)
-                  ? &next_long_name
-                  : &next_long_link);
-
-         set_next_block_after (header);
-         if (*longp)
-           free (*longp);
-         size = current_stat.st_size;
-         if (size != current_stat.st_size)
-           xalloc_die ();
-         bp = *longp = xmalloc (size);
-
-         for (; size > 0; size -= written)
+         if (raw_extended_headers)
+           return HEADER_SUCCESS_EXTENDED;
+         else if (header->header.typeflag == GNUTYPE_LONGNAME
+                  || header->header.typeflag == GNUTYPE_LONGLINK)
            {
-             data_block = find_next_block ();
-             if (! data_block)
+             size_t name_size = current_stat_info.stat.st_size;
+             size = name_size - name_size % BLOCKSIZE + 2 * BLOCKSIZE;
+             if (name_size != current_stat_info.stat.st_size
+                 || size < name_size)
+               xalloc_die ();
+
+             header_copy = xmalloc (size + 1);
+
+             if (header->header.typeflag == GNUTYPE_LONGNAME)
                {
-                 ERROR ((0, 0, _("Unexpected EOF in archive")));
-                 break;
+                 if (next_long_name)
+                   free (next_long_name);
+                 next_long_name = header_copy;
+                 next_long_name_blocks = size / BLOCKSIZE;
+               }
+             else
+               {
+                 if (next_long_link)
+                   free (next_long_link);
+                 next_long_link = header_copy;
+                 next_long_link_blocks = size / BLOCKSIZE;
                }
-             written = available_space_after (data_block);
-             if (written > size)
-               written = size;
-
-             memcpy (bp, data_block->buffer, written);
-             bp += written;
-             set_next_block_after ((union block *)
-                                   (data_block->buffer + written - 1));
+
+             set_next_block_after (header);
+             *header_copy = *header;
+             bp = header_copy->buffer + BLOCKSIZE;
+
+             for (size -= BLOCKSIZE; size > 0; size -= written)
+               {
+                 data_block = find_next_block ();
+                 if (! data_block)
+                   {
+                     ERROR ((0, 0, _("Unexpected EOF in archive")));
+                     break;
+                   }
+                 written = available_space_after (data_block);
+                 if (written > size)
+                   written = size;
+
+                 memcpy (bp, data_block->buffer, written);
+                 bp += written;
+                 set_next_block_after ((union block *)
+                                       (data_block->buffer + written - 1));
+               }
+
+             *bp = '\0';
+           }
+         else if (header->header.typeflag == XHDTYPE)
+           xheader_read (header, OFF_FROM_HEADER (header->header.size));
+         else if (header->header.typeflag == XGLTYPE)
+           {
+             xheader_read (header, OFF_FROM_HEADER (header->header.size));
+             xheader_decode_global ();
            }
 
          /* Loop!  */
@@ -359,8 +429,16 @@ read_header (void)
          struct posix_header const *h = &current_header->header;
          char namebuf[sizeof h->prefix + 1 + NAME_FIELD_SIZE + 1];
 
-         name = next_long_name;
-         if (! name)
+         if (recent_long_name)
+           free (recent_long_name);
+
+         if (next_long_name)
+           {
+             name = next_long_name->buffer + BLOCKSIZE;
+             recent_long_name = next_long_name;
+             recent_long_name_blocks = next_long_name_blocks;
+           }
+         else
            {
              /* Accept file names as specified by POSIX.1-1996
                  section 10.1.1.  */
@@ -381,33 +459,39 @@ read_header (void)
              memcpy (np, h->name, sizeof h->name);
              np[sizeof h->name] = '\0';
              name = namebuf;
+             recent_long_name = 0;
+             recent_long_name_blocks = 0;
            }
-         assign_string (&current_file_name, name);
-         if (next_long_name)
+         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);
+
+         if (recent_long_link)
+           free (recent_long_link);
+
+         if (next_long_link)
            {
-             free (next_long_name);
-             next_long_name = 0;
+             name = next_long_link->buffer + BLOCKSIZE;
+             recent_long_link = next_long_link;
+             recent_long_link_blocks = next_long_link_blocks;
            }
-         
-         name = next_long_link;
-         if (! name)
+         else
            {
              memcpy (namebuf, h->linkname, sizeof h->linkname);
              namebuf[sizeof h->linkname] = '\0';
              name = namebuf;
+             recent_long_link = 0;
+             recent_long_link_blocks = 0;
            }
-         assign_string (&current_link_name, name);
-         if (next_long_link)
-           {
-             free (next_long_link);
-             next_long_link = 0;
-           }
+         assign_string (&current_stat_info.link_name, name);
 
          return HEADER_SUCCESS;
        }
     }
 }
 
+#define ISOCTAL(c) ((c)>='0'&&(c)<='7')
+
 /* Decode things from a file HEADER block into STAT_INFO, also setting
    *FORMAT_POINTER depending on the header block format.  If
    DO_USER_GROUP, decode the user/group information (this is useful
@@ -422,74 +506,106 @@ read_header (void)
    should decode it without uid/gid before calling a routine,
    e.g. print_header, that assumes decoded data.  */
 void
-decode_header (union block *header, struct stat *stat_info,
+decode_header (union block *header, struct tar_stat_info *stat_info,
               enum archive_format *format_pointer, int do_user_group)
 {
   enum archive_format format;
 
   if (strcmp (header->header.magic, TMAGIC) == 0)
-    format = POSIX_FORMAT;
+    {
+      if (header->star_header.prefix[130] == 0
+         && ISOCTAL (header->star_header.atime[0])
+         && header->star_header.atime[11] == ' '
+         && ISOCTAL (header->star_header.ctime[0])
+         && header->star_header.ctime[11] == ' ')
+       format = STAR_FORMAT;
+      else if (extended_header.size)
+       format = POSIX_FORMAT;
+      else
+       format = USTAR_FORMAT;
+    }
   else if (strcmp (header->header.magic, OLDGNU_MAGIC) == 0)
     format = OLDGNU_FORMAT;
   else
     format = V7_FORMAT;
   *format_pointer = format;
 
-  stat_info->st_mode = MODE_FROM_HEADER (header->header.mode);
-  stat_info->st_mtime = TIME_FROM_HEADER (header->header.mtime);
+  stat_info->stat.st_mode = MODE_FROM_HEADER (header->header.mode);
+  stat_info->stat.st_mtime = TIME_FROM_HEADER (header->header.mtime);
+  assign_string (&stat_info->uname, header->header.uname);
+  assign_string (&stat_info->gname, header->header.gname);
+  stat_info->devmajor = MAJOR_FROM_HEADER (header->header.devmajor);
+  stat_info->devminor = MINOR_FROM_HEADER (header->header.devminor);
+
+  stat_info->stat.st_atime = start_time;
+  stat_info->stat.st_ctime = start_time;
 
   if (format == OLDGNU_FORMAT && incremental_option)
     {
-      stat_info->st_atime = TIME_FROM_HEADER (header->oldgnu_header.atime);
-      stat_info->st_ctime = TIME_FROM_HEADER (header->oldgnu_header.ctime);
+      stat_info->stat.st_atime = TIME_FROM_HEADER (header->oldgnu_header.atime);
+      stat_info->stat.st_ctime = TIME_FROM_HEADER (header->oldgnu_header.ctime);
     }
 
   if (format == V7_FORMAT)
     {
-      stat_info->st_uid = UID_FROM_HEADER (header->header.uid);
-      stat_info->st_gid = GID_FROM_HEADER (header->header.gid);
-      stat_info->st_rdev = 0;
+      stat_info->stat.st_uid = UID_FROM_HEADER (header->header.uid);
+      stat_info->stat.st_gid = GID_FROM_HEADER (header->header.gid);
+      stat_info->stat.st_rdev = 0;
     }
   else
     {
+
+      if (format == STAR_FORMAT)
+       {
+         stat_info->stat.st_atime = TIME_FROM_HEADER (header->star_header.atime);
+         stat_info->stat.st_ctime = TIME_FROM_HEADER (header->star_header.ctime);
+       }
+
       if (do_user_group)
        {
          /* FIXME: Decide if this should somewhat depend on -p.  */
 
          if (numeric_owner_option
              || !*header->header.uname
-             || !uname_to_uid (header->header.uname, &stat_info->st_uid))
-           stat_info->st_uid = UID_FROM_HEADER (header->header.uid);
+             || !uname_to_uid (header->header.uname, &stat_info->stat.st_uid))
+           stat_info->stat.st_uid = UID_FROM_HEADER (header->header.uid);
 
          if (numeric_owner_option
              || !*header->header.gname
-             || !gname_to_gid (header->header.gname, &stat_info->st_gid))
-           stat_info->st_gid = GID_FROM_HEADER (header->header.gid);
+             || !gname_to_gid (header->header.gname, &stat_info->stat.st_gid))
+           stat_info->stat.st_gid = GID_FROM_HEADER (header->header.gid);
        }
+
       switch (header->header.typeflag)
        {
        case BLKTYPE:
-         stat_info->st_rdev
-           = makedev (MAJOR_FROM_HEADER (header->header.devmajor),
-                      MINOR_FROM_HEADER (header->header.devminor));
-         break;
-
        case CHRTYPE:
-         stat_info->st_rdev
-           = makedev (MAJOR_FROM_HEADER (header->header.devmajor),
-                      MINOR_FROM_HEADER (header->header.devminor));
+         stat_info->stat.st_rdev = makedev (stat_info->devmajor,
+                                            stat_info->devminor);
          break;
 
        default:
-         stat_info->st_rdev = 0;
+         stat_info->stat.st_rdev = 0;
        }
     }
+
+  stat_info->archive_file_size = stat_info->stat.st_size;
+  xheader_decode (stat_info);
+
+  if (sparse_member_p (stat_info))
+    {
+      sparse_fixup_header (stat_info);
+      stat_info->is_sparse = true;
+    }
+  else
+    stat_info->is_sparse = false;
 }
 
 /* Convert buffer at WHERE0 of size DIGS from external format to
    uintmax_t.  The data is of type TYPE.  The buffer must represent a
    value in the range -MINUS_MINVAL through MAXVAL.  DIGS must be
-   positive.  */
+   positive.  Return -1 on error, diagnosing the error if TYPE is
+   nonzero.  */
 static uintmax_t
 from_header (char const *where0, size_t digs, char const *type,
             uintmax_t minus_minval, uintmax_t maxval)
@@ -539,7 +655,7 @@ from_header (char const *where0, size_t digs, char const *type,
          nonzero digit is 1, we can't recover the original value
          reliably; so do this only if the digit is 2 or more.  This
          catches the common case of 32-bit negative time stamps.  */
-      if ((overflow || maxval < value) && '2' <= *where1)
+      if ((overflow || maxval < value) && '2' <= *where1 && type)
        {
          /* Compute the negative of the input value, assuming two's
             complement.  */
@@ -571,79 +687,76 @@ from_header (char const *where0, size_t digs, char const *type,
 
       if (overflow)
        {
-         ERROR ((0, 0,
-                 _("Archive octal value %.*s is out of %s range"),
-                 (int) (where - where1), where1, type));
+         if (type)
+           ERROR ((0, 0,
+                   _("Archive octal value %.*s is out of %s range"),
+                   (int) (where - where1), where1, type));
          return -1;
        }
     }
-  else if (type)
+  else if (*where == '-' || *where == '+')
     {
-      /* The following forms cannot appear as checksums, so we don't
-        check for them if TYPE is null.  */
-
-      if (*where == '-' || *where == '+')
+      /* Parse base-64 output produced only by tar test versions
+        1.13.6 (1999-08-11) through 1.13.11 (1999-08-23).
+        Support for this will be withdrawn in future releases.  */
+      int dig;
+      static int warned_once;
+      if (! warned_once)
        {
-         /* Parse base-64 output produced only by tar test versions
-            1.13.6 (1999-08-11) through 1.13.11 (1999-08-23).
-            Support for this will be withdrawn in future releases.  */
-         int dig;
-         static int warned_once;
-         if (! warned_once)
-           {
-             warned_once = 1;
-             WARN ((0, 0,
-                    _("Archive contains obsolescent base-64 headers")));
-           }
-         negative = *where++ == '-';
-         while (where != lim
-                && (dig = base64_map[(unsigned char) *where]) < 64)
+         warned_once = 1;
+         WARN ((0, 0,
+                _("Archive contains obsolescent base-64 headers")));
+       }
+      negative = *where++ == '-';
+      while (where != lim
+            && (dig = base64_map[(unsigned char) *where]) < 64)
+       {
+         if (value << LG_64 >> LG_64 != value)
            {
-             if (value << LG_64 >> LG_64 != value)
-               {
-                 char *string = alloca (digs + 1);
-                 memcpy (string, where0, digs);
-                 string[digs] = '\0';
-                 ERROR ((0, 0,
-                         _("Archive signed base-64 string %s is out of %s range"),
-                         quote (string), type));
-                 return -1;
-               }
-             value = (value << LG_64) | dig;
-             where++;
+             char *string = alloca (digs + 1);
+             memcpy (string, where0, digs);
+             string[digs] = '\0';
+             if (type)
+               ERROR ((0, 0,
+                       _("Archive signed base-64 string %s is out of %s range"),
+                       quote (string), type));
+             return -1;
            }
+         value = (value << LG_64) | dig;
+         where++;
        }
-      else if (*where == '\200' /* positive base-256 */
-              || *where == '\377' /* negative base-256 */)
+    }
+  else if (*where == '\200' /* positive base-256 */
+          || *where == '\377' /* negative base-256 */)
+    {
+      /* Parse base-256 output.  A nonnegative number N is
+        represented as (256**DIGS)/2 + N; a negative number -N is
+        represented as (256**DIGS) - N, i.e. as two's complement.
+        The representation guarantees that the leading bit is
+        always on, so that we don't confuse this format with the
+        others (assuming ASCII bytes of 8 bits or more).  */
+      int signbit = *where & (1 << (LG_256 - 2));
+      uintmax_t topbits = (((uintmax_t) - signbit)
+                          << (CHAR_BIT * sizeof (uintmax_t)
+                              - LG_256 - (LG_256 - 2)));
+      value = (*where++ & ((1 << (LG_256 - 2)) - 1)) - signbit;
+      for (;;)
        {
-         /* Parse base-256 output.  A nonnegative number N is
-            represented as (256**DIGS)/2 + N; a negative number -N is
-            represented as (256**DIGS) - N, i.e. as two's complement.
-            The representation guarantees that the leading bit is
-            always on, so that we don't confuse this format with the
-            others (assuming ASCII bytes of 8 bits or more).  */
-         int signbit = *where & (1 << (LG_256 - 2));
-         uintmax_t topbits = (((uintmax_t) - signbit)
-                              << (CHAR_BIT * sizeof (uintmax_t)
-                                  - LG_256 - (LG_256 - 2)));
-         value = (*where++ & ((1 << (LG_256 - 2)) - 1)) - signbit;
-         for (;;)
+         value = (value << LG_256) + (unsigned char) *where++;
+         if (where == lim)
+           break;
+         if (((value << LG_256 >> LG_256) | topbits) != value)
            {
-             value = (value << LG_256) + (unsigned char) *where++;
-             if (where == lim)
-               break;
-             if (((value << LG_256 >> LG_256) | topbits) != value)
-               {
-                 ERROR ((0, 0,
-                         _("Archive base-256 value is out of %s range"),
-                         type));
-                 return -1;
-               }
+             if (type)
+               ERROR ((0, 0,
+                       _("Archive base-256 value is out of %s range"),
+                       type));
+             return -1;
            }
-         negative = signbit;
-         if (negative)
-           value = -value;
        }
+      negative = signbit;
+      if (negative)
+       value = -value;
     }
 
   if (where != lim && *where && !ISSPACE ((unsigned char) *where))
@@ -684,7 +797,7 @@ from_header (char const *where0, size_t digs, char const *type,
        *--value_string = '-';
       if (minus_minval)
        *--minval_string = '-';
-      ERROR ((0, 0, _("Archive value %s is out of %s range %s..%s"),
+      ERROR ((0, 0, _("Archive value %s is out of %s range %s.%s"),
              value_string, type,
              minval_string, STRINGIFY_BIGINT (maxval, maxval_buf)));
     }
@@ -749,7 +862,7 @@ off_from_header (const char *p, size_t s)
 size_t
 size_from_header (const char *p, size_t s)
 {
-  return from_header (p, s, "size_t", (uintmax_t) 0, 
+  return from_header (p, s, "size_t", (uintmax_t) 0,
                      (uintmax_t) TYPE_MAXIMUM (size_t));
 }
 
@@ -812,11 +925,11 @@ tartime (time_t t)
 #else
   /* Use ISO 8610 format.  See:
      http://www.cl.cam.ac.uk/~mgk25/iso-time.html  */
-  struct tm *tm = localtime (&t);
+  struct tm *tm = utc_option ? gmtime (&t) : localtime (&t);
   if (tm)
     {
-      sprintf (buffer, "%04d-%02d-%02d %02d:%02d:%02d",
-              tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+      sprintf (buffer, "%04ld-%02d-%02d %02d:%02d:%02d",
+              tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday,
               tm->tm_hour, tm->tm_min, tm->tm_sec);
       return buffer;
     }
@@ -846,7 +959,7 @@ tartime (time_t t)
 
 
 /* FIXME: Note that print_header uses the globals HEAD, HSTAT, and
-   HEAD_STANDARD, which must be set up in advance.  Not very clean...  */
+   HEAD_STANDARD, which must be set up in advance.  Not very clean..  */
 
 /* UGSWIDTH starts with 18, so with user and group names <= 8 chars, the
    columns never shift during the listing.  */
@@ -861,10 +974,12 @@ static int ugswidth = UGSWIDTH;   /* maximum width encountered so far */
 #endif
 
 void
-print_header (void)
+print_header (struct tar_stat_info *st, off_t block_ordinal)
 {
   char modes[11];
   char const *time_stamp;
+  char *temp_name = st->orig_file_name ? st->orig_file_name : st->file_name;
+
   /* These hold formatted ints.  */
   char uform[UINTMAX_STRSIZE_BOUND], gform[UINTMAX_STRSIZE_BOUND];
   char *user, *group;
@@ -876,14 +991,18 @@ print_header (void)
   if (block_number_option)
     {
       char buf[UINTMAX_STRSIZE_BOUND];
+      if (block_ordinal < 0)
+       block_ordinal = current_block_ordinal ();
+      block_ordinal -= recent_long_name_blocks;
+      block_ordinal -= recent_long_link_blocks;
       fprintf (stdlis, _("block %s: "),
-              STRINGIFY_BIGINT (current_block_ordinal (), buf));
+              STRINGIFY_BIGINT (block_ordinal, buf));
     }
 
   if (verbose_option <= 1)
     {
       /* Just the fax, mam.  */
-      fprintf (stdlis, "%s\n", quotearg (current_file_name));
+      fprintf (stdlis, "%s\n", quotearg (temp_name));
     }
   else
     {
@@ -906,17 +1025,20 @@ print_header (void)
 
        case GNUTYPE_LONGNAME:
        case GNUTYPE_LONGLINK:
+         modes[0] = 'L';
          ERROR ((0, 0, _("Visible longname error")));
          break;
 
        case GNUTYPE_SPARSE:
        case REGTYPE:
        case AREGTYPE:
-       case LNKTYPE:
          modes[0] = '-';
-         if (current_file_name[strlen (current_file_name) - 1] == '/')
+         if (temp_name[strlen (temp_name) - 1] == '/')
            modes[0] = 'd';
          break;
+       case LNKTYPE:
+         modes[0] = 'h';
+         break;
        case GNUTYPE_DUMPDIR:
          modes[0] = 'd';
          break;
@@ -940,29 +1062,57 @@ print_header (void)
          break;
        }
 
-      decode_mode (current_stat.st_mode, modes + 1);
+      decode_mode (st->stat.st_mode, modes + 1);
 
       /* Time stamp.  */
 
-      time_stamp = tartime (current_stat.st_mtime);
+      time_stamp = tartime (st->stat.st_mtime);
 
       /* User and group names.  */
 
-      if (*current_header->header.uname && current_format != V7_FORMAT
+      if (st->uname && current_format != V7_FORMAT
          && !numeric_owner_option)
-       user = current_header->header.uname;
+       user = st->uname;
       else
-       user = STRINGIFY_BIGINT (UINTMAX_FROM_HEADER
-                                (current_header->header.uid),
-                                uform);
+       {
+         /* 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) 0,
+                                    (uintmax_t) TYPE_MAXIMUM (uintmax_t));
+         if (u != -1)
+           user = STRINGIFY_BIGINT (u, uform);
+         else
+           {
+             sprintf (uform, "%ld",
+                      (long) UID_FROM_HEADER (current_header->header.uid));
+             user = uform;
+           }
+       }
 
-      if (*current_header->header.gname && current_format != V7_FORMAT
+      if (st->gname && current_format != V7_FORMAT
          && !numeric_owner_option)
-       group = current_header->header.gname;
+       group = st->gname;
       else
-       group = STRINGIFY_BIGINT (UINTMAX_FROM_HEADER
-                                 (current_header->header.gid),
-                                 gform);
+       {
+         /* 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) 0,
+                                    (uintmax_t) TYPE_MAXIMUM (uintmax_t));
+         if (g != -1)
+           group = STRINGIFY_BIGINT (g, gform);
+         else
+           {
+             sprintf (gform, "%ld",
+                      (long) GID_FROM_HEADER (current_header->header.gid));
+             group = gform;
+           }
+       }
 
       /* Format the file size or major/minor device numbers.  */
 
@@ -971,20 +1121,15 @@ print_header (void)
        case CHRTYPE:
        case BLKTYPE:
          strcpy (size,
-                 STRINGIFY_BIGINT (major (current_stat.st_rdev), uintbuf));
+                 STRINGIFY_BIGINT (major (st->stat.st_rdev), uintbuf));
          strcat (size, ",");
          strcat (size,
-                 STRINGIFY_BIGINT (minor (current_stat.st_rdev), uintbuf));
-         break;
-       case GNUTYPE_SPARSE:
-         strcpy (size,
-                 STRINGIFY_BIGINT
-                 (UINTMAX_FROM_HEADER (current_header
-                                       ->oldgnu_header.realsize),
-                  uintbuf));
+                 STRINGIFY_BIGINT (minor (st->stat.st_rdev), uintbuf));
          break;
+
        default:
-         strcpy (size, STRINGIFY_BIGINT (current_stat.st_size, uintbuf));
+         /* st->stat.st_size keeps stored file size */
+         strcpy (size, STRINGIFY_BIGINT (st->stat.st_size, uintbuf));
          break;
        }
 
@@ -997,16 +1142,16 @@ print_header (void)
       fprintf (stdlis, "%s %s/%s %*s%s %s",
               modes, user, group, ugswidth - pad, "", size, time_stamp);
 
-      fprintf (stdlis, " %s", quotearg (current_file_name));
+      fprintf (stdlis, " %s", quotearg (temp_name));
 
       switch (current_header->header.typeflag)
        {
        case SYMTYPE:
-         fprintf (stdlis, " -> %s\n", quotearg (current_link_name));
+         fprintf (stdlis, " -> %s\n", quotearg (st->link_name));
          break;
 
        case LNKTYPE:
-         fprintf (stdlis, _(" link to %s\n"), quotearg (current_link_name));
+         fprintf (stdlis, _(" link to %s\n"), quotearg (st->link_name));
          break;
 
        default:
@@ -1031,6 +1176,14 @@ print_header (void)
          putc ('\n', stdlis);
          break;
 
+       case GNUTYPE_LONGLINK:
+         fprintf (stdlis, _("--Long Link--\n"));
+         break;
+
+       case GNUTYPE_LONGNAME:
+         fprintf (stdlis, _("--Long Name--\n"));
+         break;
+
        case GNUTYPE_VOLHDR:
          fprintf (stdlis, _("--Volume Header--\n"));
          break;
@@ -1053,7 +1206,7 @@ print_header (void)
 
 /* Print a similar line when we make a directory automatically.  */
 void
-print_for_mkdir (char *pathname, int length, mode_t mode)
+print_for_mkdir (char *dirname, int length, mode_t mode)
 {
   char modes[11];
 
@@ -1072,7 +1225,7 @@ print_for_mkdir (char *pathname, int length, mode_t mode)
        }
 
       fprintf (stdlis, "%s %*s %.*s\n", modes, ugswidth + DATEWIDTH,
-              _("Creating directory:"), length, quotearg (pathname));
+              _("Creating directory:"), length, quotearg (dirname));
     }
 }
 
@@ -1088,6 +1241,19 @@ skip_file (off_t size)
       save_sizeleft = size;
     }
 
+  if (seekable_archive)
+    {
+      off_t nblk = seek_archive (size);
+      if (nblk >= 0)
+       {
+         size -= nblk * BLOCKSIZE;
+         if (multi_volume_option) /* Argh.. */
+           save_sizeleft -= nblk * BLOCKSIZE;
+       }
+      else
+       seekable_archive = false;
+    }
+  
   while (size > 0)
     {
       x = find_next_block ();
@@ -1101,26 +1267,18 @@ skip_file (off_t size)
     }
 }
 
-/* Skip the current member in the archive.  */
+/* Skip the current member in the archive.
+   NOTE: Current header must be decoded before calling this function. */
 void
 skip_member (void)
 {
   char save_typeflag = current_header->header.typeflag;
   set_next_block_after (current_header);
+  
+  assign_string (&save_name, current_stat_info.file_name);
 
-  if (current_header->oldgnu_header.isextended)
-    {
-      union block *exhdr;
-      do
-       {
-         exhdr = find_next_block ();
-         if (!exhdr)
-           FATAL_ERROR ((0, 0, _("Unexpected EOF in archive")));
-         set_next_block_after (exhdr);
-       }
-      while (exhdr->sparse_header.isextended);
-    }
-
-  if (save_typeflag != DIRTYPE)
-    skip_file (current_stat.st_size);
+  if (current_stat_info.is_sparse)
+    sparse_skip_file (&current_stat_info);
+  else if (save_typeflag != DIRTYPE)
+    skip_file (current_stat_info.stat.st_size);
 }
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