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Message-ID: <379D0297.ECEADA06@sarto.gaithersburg.md.us>
Date: Mon, 26 Jul 1999 20:51:35 -0400
From: "Joseph H. Buehler" <jhpb@sarto.gaithersburg.md.us>
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To: bugzilla@redhat.com
Subject: BUG ID #4208
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--------------747FAF18CE4E4F8E71D6ED66
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The 2.4.2 version of GNU cpio goes into an infinite loop when unpacking
cpio files that have empty files with hard links.  Duplicate as
follows:

rm -fr t &&
mkdir t &&
touch t/f1 &&
ln t/f1 t/f2 &&
find t | cpio -o -H newc > temp.cpio &&
cpio -idmuv <temp.cpio &&
true

Also, cpio on systems without lchown() (probably not Redhat) will incorrectly
set the permissions on files that symlinks point at, instead of the
symlink itself.

Patch is attached.

Joe Buehler
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*** cpio-2.4.2.redhat/copypass.c	Mon Jan  8 16:59:05 1996
--- cpio-2.4.2/copypass.c	Wed Sep 11 21:22:04 1996
***************
*** 24,33 ****
  #include "dstring.h"
  #include "extern.h"
  
- #ifndef HAVE_LCHOWN
- #define lchown chown
- #endif
- 
  /* Copy files listed on the standard input into directory `directory_name'.
     If `link_flag', link instead of copying.  */
  
--- 24,29 ----
***************
*** 360,371 ****
--- 356,369 ----
  	    }
  
  	  /* Set the attributes of the new link.  */
+ #ifdef HAVE_LCHOWN
  	  if (!no_chown_flag)
  	    if ((lchown (output_name.ds_string,
  			 set_owner_flag ? set_owner : in_file_stat.st_uid,
  		      set_group_flag ? set_group : in_file_stat.st_gid) < 0)
  		&& errno != EPERM)
  	      error (0, errno, "%s", output_name.ds_string);
+ #endif
  	  free (link_name);
  	}
  #endif
*** cpio-2.4.2.redhat/copyin.c	Wed Nov 30 17:49:06 1994
--- cpio-2.4.2/copyin.c	Tue Sep 17 11:21:15 1996
***************
*** 29,38 ****
  #include <fnmatch.h>
  #endif
  
- #ifndef HAVE_LCHOWN
- #define lchown chown
- #endif
- 
  static void read_pattern_file ();
  static void tape_skip_padding ();
  static void defer_copyin ();
--- 29,34 ----
***************
*** 982,993 ****
--- 978,991 ----
  		    link_name = NULL;
  		    continue;
  		  }
+ #ifdef HAVE_LCHOWN
  		if (!no_chown_flag)
  		  if ((lchown (file_hdr.c_name,
  			       set_owner_flag ? set_owner : file_hdr.c_uid,
  			   set_group_flag ? set_group : file_hdr.c_gid) < 0)
  		      && errno != EPERM)
  		    error (0, errno, "%s", file_hdr.c_name);
+ #endif
  		free (link_name);
  		link_name = NULL;
  	      }
***************
*** 1306,1312 ****
    
    for (d = deferments; d != NULL; d = d->next)
      {
-       d = deferments;
        link_res = link_to_maj_min_ino (d->header.c_name, 
  		    d->header.c_dev_maj, d->header.c_dev_maj,
  		    d->header.c_ino);
--- 1304,1309 ----

--------------747FAF18CE4E4F8E71D6ED66--