]> Dogcows Code - chaz/tar/blobdiff - src/list.c
(read_header): Minor change.
[chaz/tar] / src / list.c
index 0fdcc2e1406dba1d37455a682041b0906a4ec8dc..5b06e80ecb9b7a27115fb5e5154934d25170918c 100644 (file)
@@ -30,7 +30,6 @@
 #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 */
@@ -77,10 +76,11 @@ read_and (void (*do_something) (void))
   while (1)
     {
       prev_status = status;
-      status = read_header (0);
+      status = read_header (false);
       switch (status)
        {
        case HEADER_STILL_UNREAD:
+       case HEADER_SUCCESS_EXTENDED:
          abort ();
 
        case HEADER_SUCCESS:
@@ -88,14 +88,14 @@ read_and (void (*do_something) (void))
          /* Valid header.  We should decode next field (mode) first.
             Ensure incoming names are null terminated.  */
 
-         if (! name_match (current_file_name)
+         if (! name_match (current_stat_info.file_name)
              || (newer_mtime_option != TYPE_MINIMUM (time_t)
                  /* FIXME: We get mtime now, and again later; this causes
                     duplicate diagnostics if header.mtime is bogus.  */
-                 && ((current_stat.st_mtime
+                 && ((current_stat_info.stat.st_mtime
                       = TIME_FROM_HEADER (current_header->header.mtime))
                      < newer_mtime_option))
-             || excluded_name (current_file_name))
+             || excluded_name (current_stat_info.file_name))
            {
              switch (current_header->header.typeflag)
                {
@@ -107,7 +107,7 @@ read_and (void (*do_something) (void))
                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:
                  skip_member ();
@@ -160,6 +160,9 @@ read_and (void (*do_something) (void))
            case HEADER_FAILURE:
              /* We are in the middle of a cascade of errors.  */
              break;
+
+           case HEADER_SUCCESS_EXTENDED:
+             abort ();
            }
          continue;
        }
@@ -176,12 +179,9 @@ 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 (-1);
-    }
+    print_header (-1);
 
   if (incremental_option && current_header->header.typeflag == GNUTYPE_DUMPDIR)
     {
@@ -192,10 +192,10 @@ 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;
@@ -214,7 +214,7 @@ 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;
            }
@@ -228,7 +228,7 @@ 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 ();
 
@@ -238,7 +238,7 @@ 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).
@@ -321,64 +321,71 @@ read_header (bool raw_extended_headers)
       /* 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)
        {
          if (raw_extended_headers)
            return HEADER_SUCCESS_EXTENDED;
-         else
+         else if (header->header.typeflag == GNUTYPE_LONGNAME
+                  || header->header.typeflag == GNUTYPE_LONGLINK)
            {
-             size_t name_size = current_stat.st_size;
+             size_t name_size = current_stat_info.stat.st_size;
              size = name_size - name_size % BLOCKSIZE + 2 * BLOCKSIZE;
-             if (name_size != current_stat.st_size || size < name_size)
+             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)
-           {
-             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;
-           }
-
-         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)
+             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;
                }
-             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));
-           }
+             else
+               {
+                 if (next_long_link)
+                   free (next_long_link);
+                 next_long_link = header_copy;
+                 next_long_link_blocks = size / BLOCKSIZE;
+               }
+             
+             set_next_block_after (header);
+             *header_copy = *header;
+             bp = header_copy->buffer + BLOCKSIZE;
 
-         *bp = '\0';
+             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
+                  || header->header.typeflag == XGLTYPE)
+           xheader_read (header, OFF_FROM_HEADER (header->header.size));
+      
          /* Loop!  */
 
        }
@@ -421,8 +428,9 @@ read_header (bool raw_extended_headers)
              recent_long_name = 0;
              recent_long_name_blocks = 0;
            }
-         assign_string (&current_file_name, name);
-         current_trailing_slash = strip_trailing_slashes (current_file_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);
@@ -441,13 +449,15 @@ read_header (bool raw_extended_headers)
              recent_long_link = 0;
              recent_long_link_blocks = 0;
            }
-         assign_string (&current_link_name, name);
+         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
@@ -462,68 +472,85 @@ read_header (bool raw_extended_headers)
    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
+       format = POSIX_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);
+  
   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;
        }
     }
+
+  if (extended_header.size)
+    xheader_decode (stat_info);
 }
 
 /* Convert buffer at WHERE0 of size DIGS from external format to
@@ -722,7 +749,7 @@ 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)));
     }
@@ -884,7 +911,7 @@ 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.  */
@@ -903,6 +930,8 @@ print_header (off_t block_ordinal)
 {
   char modes[11];
   char const *time_stamp;
+  char *temp_name = current_stat_info.orig_file_name ? current_stat_info.orig_file_name : current_stat_info.file_name;
+  
   /* These hold formatted ints.  */
   char uform[UINTMAX_STRSIZE_BOUND], gform[UINTMAX_STRSIZE_BOUND];
   char *user, *group;
@@ -925,10 +954,7 @@ print_header (off_t block_ordinal)
   if (verbose_option <= 1)
     {
       /* Just the fax, mam.  */
-      fprintf (stdlis, "%s", quotearg (current_file_name));
-      if (current_trailing_slash)
-       fprintf (stdlis, "/");
-      fprintf (stdlis, "\n");
+      fprintf (stdlis, "%s\n", quotearg (temp_name));
     }
   else
     {
@@ -959,7 +985,7 @@ print_header (off_t block_ordinal)
        case REGTYPE:
        case AREGTYPE:
          modes[0] = '-';
-         if (current_file_name[strlen (current_file_name) - 1] == '/')
+         if (temp_name[strlen (temp_name) - 1] == '/')
            modes[0] = 'd';
          break;
        case LNKTYPE:
@@ -988,17 +1014,17 @@ print_header (off_t block_ordinal)
          break;
        }
 
-      decode_mode (current_stat.st_mode, modes + 1);
+      decode_mode (current_stat_info.stat.st_mode, modes + 1);
 
       /* Time stamp.  */
 
-      time_stamp = tartime (current_stat.st_mtime);
+      time_stamp = tartime (current_stat_info.stat.st_mtime);
 
       /* User and group names.  */
 
-      if (*current_header->header.uname && current_format != V7_FORMAT
+      if (current_stat_info.uname && current_format != V7_FORMAT
          && !numeric_owner_option)
-       user = current_header->header.uname;
+       user = current_stat_info.uname;
       else
        {
          /* Try parsing it as an unsigned integer first, and as a
@@ -1018,9 +1044,9 @@ print_header (off_t block_ordinal)
            }
        }
 
-      if (*current_header->header.gname && current_format != V7_FORMAT
+      if (current_stat_info.gname && current_format != V7_FORMAT
          && !numeric_owner_option)
-       group = current_header->header.gname;
+       group = current_stat_info.gname;
       else
        {
          /* Try parsing it as an unsigned integer first, and as a
@@ -1047,10 +1073,10 @@ print_header (off_t block_ordinal)
        case CHRTYPE:
        case BLKTYPE:
          strcpy (size,
-                 STRINGIFY_BIGINT (major (current_stat.st_rdev), uintbuf));
+                 STRINGIFY_BIGINT (major (current_stat_info.stat.st_rdev), uintbuf));
          strcat (size, ",");
          strcat (size,
-                 STRINGIFY_BIGINT (minor (current_stat.st_rdev), uintbuf));
+                 STRINGIFY_BIGINT (minor (current_stat_info.stat.st_rdev), uintbuf));
          break;
        case GNUTYPE_SPARSE:
          strcpy (size,
@@ -1060,7 +1086,7 @@ print_header (off_t block_ordinal)
                   uintbuf));
          break;
        default:
-         strcpy (size, STRINGIFY_BIGINT (current_stat.st_size, uintbuf));
+         strcpy (size, STRINGIFY_BIGINT (current_stat_info.stat.st_size, uintbuf));
          break;
        }
 
@@ -1073,16 +1099,16 @@ print_header (off_t block_ordinal)
       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 (current_stat_info.link_name));
          break;
 
        case LNKTYPE:
-         fprintf (stdlis, _(" link to %s\n"), quotearg (current_link_name));
+         fprintf (stdlis, _(" link to %s\n"), quotearg (current_stat_info.link_name));
          break;
 
        default:
@@ -1192,7 +1218,8 @@ skip_member (void)
   char save_typeflag = current_header->header.typeflag;
   set_next_block_after (current_header);
 
-  if (current_header->oldgnu_header.isextended)
+  if (current_format == OLDGNU_FORMAT
+      && current_header->oldgnu_header.isextended)
     {
       union block *exhdr;
       do
@@ -1206,5 +1233,5 @@ skip_member (void)
     }
 
   if (save_typeflag != DIRTYPE)
-    skip_file (current_stat.st_size);
+    skip_file (current_stat_info.stat.st_size);
 }
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