X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Fcompare.c;h=6a873d7b131949bbc05fcb9634e78f90179fef5f;hb=ecbcb7b6d74c2d69386c8d7e435486a4690c9993;hp=f3723049ed055b3b4ef7d96c5d5c23914b0ab9d8;hpb=7efe3850f6e058d33a46ef17cdc95df0469ed887;p=chaz%2Ftar

diff --git a/src/compare.c b/src/compare.c
index f372304..6a873d7 100644
--- a/src/compare.c
+++ b/src/compare.c
@@ -1,7 +1,7 @@
 /* Diff files from a tar archive.
 
    Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1999, 2000, 2001,
-   2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+   2003, 2004, 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
 
    Written by John Gilmore, on 1987-04-30.
 
@@ -66,8 +66,7 @@ report_difference (struct tar_stat_info *st, const char *fmt, ...)
       fprintf (stdlis, "\n");
     }
 
-  if (exit_status == TAREXIT_SUCCESS)
-    exit_status = TAREXIT_DIFFERS;
+  set_exit_status (TAREXIT_DIFFERS);
 }
 
 /* Take a buffer returned by read_and_process and do nothing with it.  */
@@ -123,7 +122,7 @@ read_and_process (struct tar_stat_info *st, int (*processor) (size_t, char *))
   size_t data_size;
   off_t size = st->stat.st_size;
 
-  mv_begin (st);
+  mv_begin_read (st);
   while (size)
     {
       data_block = find_next_block ();
@@ -223,7 +222,9 @@ diff_file (void)
 	     ? O_NOATIME
 	     : 0);
 
-	  diff_handle = open (file_name, O_RDONLY | O_BINARY | atime_flag);
+	  diff_handle = open (file_name,
+			      (O_RDONLY | O_BINARY | O_CLOEXEC | O_NOCTTY
+			       | O_NONBLOCK | atime_flag));
 
 	  if (diff_handle < 0)
 	    {
@@ -242,10 +243,8 @@ diff_file (void)
 
 	      if (atime_preserve_option == replace_atime_preserve)
 		{
-		  struct timespec ts[2];
-		  ts[0] = get_stat_atime (&stat_data);
-		  ts[1] = get_stat_mtime (&stat_data);
-		  if (set_file_atime (diff_handle, file_name, ts) != 0)
+		  struct timespec atime = get_stat_atime (&stat_data);
+		  if (set_file_atime (diff_handle, file_name, atime, 0) != 0)
 		    utime_error (file_name);
 		}
 
@@ -332,7 +331,7 @@ static int
 dumpdir_cmp (const char *a, const char *b)
 {
   size_t len;
-  
+
   while (*a)
     switch (*a)
       {
@@ -346,7 +345,7 @@ dumpdir_cmp (const char *a, const char *b)
 	a += len;
 	b += len;
 	break;
-	
+
       case 'D':
 	if (strcmp(a, b))
 	  return 1;
@@ -354,7 +353,7 @@ dumpdir_cmp (const char *a, const char *b)
 	a += len;
 	b += len;
 	break;
-	
+
       case 'R':
       case 'T':
       case 'X':
@@ -366,7 +365,7 @@ dumpdir_cmp (const char *a, const char *b)
 static void
 diff_dumpdir (void)
 {
-  char *dumpdir_buffer;
+  const char *dumpdir_buffer;
   dev_t dev = 0;
   struct stat stat_data;
 
@@ -380,7 +379,7 @@ diff_dumpdir (void)
   else
     dev = stat_data.st_dev;
 
-  dumpdir_buffer = get_directory_contents (current_stat_info.file_name, dev);
+  dumpdir_buffer = directory_contents (scan_directory (&current_stat_info));
 
   if (dumpdir_buffer)
     {
@@ -397,6 +396,10 @@ diff_multivol (void)
   struct stat stat_data;
   int fd, status;
   off_t offset;
+  int atime_flag =
+    (atime_preserve_option == system_atime_preserve
+     ? O_NOATIME
+     : 0);
 
   if (current_stat_info.had_trailing_slash)
     {
@@ -422,7 +425,10 @@ diff_multivol (void)
       return;
     }
 
-  fd = open (current_stat_info.file_name, O_RDONLY | O_BINARY);
+
+  fd = open (current_stat_info.file_name,
+	     (O_RDONLY | O_BINARY | O_CLOEXEC | O_NOCTTY | O_NONBLOCK
+	      | atime_flag));
 
   if (fd < 0)
     {
@@ -452,7 +458,6 @@ diff_archive (void)
 {
 
   set_next_block_after (current_header);
-  decode_header (current_header, &current_stat_info, &current_format, 1);
 
   /* Print the block from current_header and current_stat_info.  */
 
@@ -460,7 +465,7 @@ diff_archive (void)
     {
       if (now_verifying)
 	fprintf (stdlis, _("Verify "));
-      print_header (&current_stat_info, -1);
+      print_header (&current_stat_info, current_header, -1);
     }
 
   switch (current_header->header.typeflag)
@@ -578,7 +583,9 @@ verify_volume (void)
   flush_read ();
   while (1)
     {
-      enum read_header status = read_header (false);
+      enum read_header status = read_header (&current_header,
+                                             &current_stat_info,
+                                             read_header_auto);
 
       if (status == HEADER_FAILURE)
 	{
@@ -588,7 +595,8 @@ verify_volume (void)
 	    {
 	      counter++;
 	      set_next_block_after (current_header);
-	      status = read_header (false);
+	      status = read_header (&current_header, &current_stat_info,
+	                            read_header_auto);
 	    }
 	  while (status == HEADER_FAILURE);
 
@@ -606,14 +614,16 @@ verify_volume (void)
             {
 	      char buf[UINTMAX_STRSIZE_BOUND];
 
-	      status = read_header (false);
+	      status = read_header (&current_header, &current_stat_info,
+	                            read_header_auto);
 	      if (status == HEADER_ZERO_BLOCK)
 	        break;
-	      WARN ((0, 0, _("A lone zero block at %s"),
-	  	    STRINGIFY_BIGINT (current_block_ordinal (), buf)));
+	      WARNOPT (WARN_ALONE_ZERO_BLOCK,
+		       (0, 0, _("A lone zero block at %s"),
+			STRINGIFY_BIGINT (current_block_ordinal (), buf)));
             }
 	}
-      
+
       diff_archive ();
       tar_stat_destroy (&current_stat_info);
     }