X-Git-Url: https://git.brokenzipper.com/gitweb?a=blobdiff_plain;f=src%2Fbuffer.c;h=d788b167fed142a4b308413ab1a8b3fbadacf580;hb=520104f5f80056a2adc8ed23ec3a623bcf94c260;hp=c0cedc3c8e9fa8be2d293268f944d424f2bdb453;hpb=f2bf9f2ffa06c0a89a799e64672f58a8e7d0efc7;p=chaz%2Ftar

diff --git a/src/buffer.c b/src/buffer.c
index c0cedc3..d788b16 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -44,6 +44,7 @@
 static tarlong prev_written;	/* bytes written on previous volumes */
 static tarlong bytes_written;	/* bytes written on this volume */
 static void *record_buffer[2];	/* allocated memory */
+union block *record_buffer_aligned[2];
 static int record_index;
 
 /* FIXME: The following variables should ideally be static to this
@@ -369,10 +370,11 @@ xclose (int fd)
 static void
 init_buffer ()
 {
-  if (!record_buffer[record_index])
-    page_aligned_alloc (&record_buffer[record_index], record_size);
+  if (! record_buffer_aligned[record_index])
+    record_buffer_aligned[record_index] =
+      page_aligned_alloc (&record_buffer[record_index], record_size);
 
-  record_start = record_buffer[record_index];
+  record_start = record_buffer_aligned[record_index];
   current_block = record_start;
   record_end = record_start + blocking_factor;
 }
@@ -451,7 +453,7 @@ _open_archive (enum access_mode wanted_access)
 
 	    archive = STDIN_FILENO;
 
-	    type = check_compressed_archive (archive);
+	    type = check_compressed_archive ();
 	    if (type != ct_none)
 	      FATAL_ERROR ((0, 0,
 			    _("Archive is compressed. Use %s option"),
@@ -1055,10 +1057,12 @@ new_volume (enum access_mode mode)
 }
 
 static bool
-read_header0 ()
+read_header0 (struct tar_stat_info *info)
 {
-  enum read_header rc = read_header (false);
+  enum read_header rc;
 
+  tar_stat_init (info);
+  rc = read_header_primitive (false, info);
   if (rc == HEADER_SUCCESS)
     {
       set_next_block_after (current_header);
@@ -1073,7 +1077,8 @@ try_new_volume ()
 {
   size_t status;
   union block *header;
-
+  struct tar_stat_info dummy;
+	
   switch (subcommand_option)
     {
     case APPEND_SUBCOMMAND:
@@ -1099,14 +1104,13 @@ try_new_volume ()
   header = find_next_block ();
   if (!header)
     return false;
+
   switch (header->header.typeflag)
     {
     case XGLTYPE:
       {
-	struct tar_stat_info dummy;
-	if (!read_header0 ())
+	if (!read_header0 (&dummy))
 	  return false;
-	tar_stat_init (&dummy);
 	xheader_decode (&dummy); /* decodes values from the global header */
 	tar_stat_destroy (&dummy);
 	if (!real_s_name)
@@ -1120,8 +1124,9 @@ try_new_volume ()
       }
 
     case GNUTYPE_VOLHDR:
-      if (!read_header0 ())
+      if (!read_header0 (&dummy))
 	return false;
+      tar_stat_destroy (&dummy);
       assign_string (&volume_label, current_header->header.name);
       set_next_block_after (header);
       header = find_next_block ();
@@ -1130,8 +1135,9 @@ try_new_volume ()
       /* FALL THROUGH */
 
     case GNUTYPE_MULTIVOL:
-      if (!read_header0 ())
+      if (!read_header0 (&dummy))
 	return false;
+      tar_stat_destroy (&dummy);
       assign_string (&continued_file_name, current_header->header.name);
       continued_file_size =
 	UINTMAX_FROM_HEADER (current_header->header.size);
@@ -1149,9 +1155,19 @@ try_new_volume ()
       if (!continued_file_name
 	  || strcmp (continued_file_name, real_s_name))
 	{
-	  WARN ((0, 0, _("%s is not continued on this volume"),
-		 quote (real_s_name)));
-	  return false;
+	  if ((archive_format == GNU_FORMAT || archive_format == OLDGNU_FORMAT)
+	      && strlen (real_s_name) >= NAME_FIELD_SIZE
+	      && strncmp (continued_file_name, real_s_name,
+			  NAME_FIELD_SIZE) == 0)
+	    WARN ((0, 0,
+ _("%s is possibly continued on this volume: header contains truncated name"),
+		   quote (real_s_name)));
+	  else
+	    {
+	      WARN ((0, 0, _("%s is not continued on this volume"),
+		     quote (real_s_name)));
+	      return false;
+	    }
 	}
 
       s = continued_file_size + continued_file_offset;