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Full Discussion: ZFS ACLS and vim
Operating Systems Solaris ZFS ACLS and vim Post 302938938 by achenle on Friday 20th of March 2015 07:11:51 AM
Old 03-20-2015
The chmod() at 2.7074 is probably the culprit.

You can start up this dtrace script as root, then use vim to cause ACLs to disappear:

Code:
#!/usr/sbin/dtrace -s

#pragma D option flowindent

syscall::fchmodat:entry
/execname=="vim"/
{
    printf( "%s, 0x%x\n", execname, arg1 );
    self->trace = 1;
}

syscall::fchmodat:return
/self->trace/
{
    self->trace = 0;
}

fbt:::
/self->trace/
{
}

That'll show what's going on under the hood.

To verify that it's indeed that chmod() call that's blowing away the ACLs, take this C code:

Code:
int chmod( const char *name, unsigned int mode )
{
    return( 0 );
}

Compile it:
Code:
gcc -m32 -shared chmod.c -o chmod.so (gcc)

or
Code:
cc -G chmod.c -o chmod.so (Sun Studio)

Set your LD_PRELOAD_32:
Code:
export LD_PRELOAD_32=/path/to/chmod.so

Rerun vim from the same shell you set LD_PRELOAD_32 in.

If the ACLs are preserved, it's a bug in vim.

Oh yeah - don't do anything else from the bash session where you have the LD_PRELOAD set. Things aren't going to behave well with chmod() stubbed out like that.

And I recommend you never, ever use just plain "LD_PRELOAD" on Solaris. Always use LD_PRELOAD_32 or LD_PRELOAD_64. If a 32-bit binary hits a 64-bit shared object in LD_PRELOAD, or the other way around, it won't run.
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LEARN ABOUT DEBIAN

locale::script

Locale::Script(3perl)					 Perl Programmers Reference Guide				     Locale::Script(3perl)

NAME

       Locale::Script - standard codes for script identification

SYNOPSIS

	  use Locale::Script;

	  $script  = code2script('phnx');		      # 'Phoenician'
	  $code    = script2code('Phoenician'); 	      # 'Phnx'
	  $code    = script2code('Phoenician',
				 LOCALE_CODE_NUMERIC);	      # 115

	  @codes   = all_script_codes();
	  @scripts = all_script_names();

DESCRIPTION

       The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924
       four-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying scripts. The ones currently supported are:

       alpha
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_ALPHA".

	   The Zxxx, Zyyy, and Zzzz codes are not used.

	   This is the default code set.

       numeric
	   This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_NUMERIC".

ROUTINES

       code2script ( CODE [,CODESET] )
       script2code ( NAME [,CODESET] )
       script_code2code ( CODE ,CODESET ,CODESET2 )
       all_script_codes ( [CODESET] )
       all_script_names ( [CODESET] )
       Locale::Script::rename_script  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Script::add_script  ( CODE ,NAME [,CODESET] )
       Locale::Script::delete_script  ( CODE [,CODESET] )
       Locale::Script::add_script_alias  ( NAME ,NEW_NAME )
       Locale::Script::delete_script_alias  ( NAME )
       Locale::Script::rename_script_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::add_script_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::delete_script_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.unicode.org/iso15924/
	   Home page for ISO 15924.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2011-09-26						     Locale::Script(3perl)
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