MAXNAMELEN vs MAXNAMLEN

From: Rich Teer (rich.teer_at_rite-group.com)
Date: 01/23/04 

Date: Fri, 23 Jan 2004 06:46:43 GMT

Hi all,

I have a reconcilliation type of question. <sys/param.h>
says this:

/*
 * MAXPATHLEN defines the longest permissible path length,
 * including the terminating null, after expanding symbolic links.
 * MAXNAMELEN is the length (including the terminating null) of
 * the longest permissible file (component) name.
 */
#define MAXPATHLEN 1024
#define MAXNAMELEN 256

Whereas <dirent.h> says this:

#define MAXNAMLEN 512 /* maximum filename length */

So, one header file claims that the maximum length of
a file name (i.e., pathname component) is 256 characters,
and another claims that it is 512.

Shouldn't these two values be the same? I mean, how can
a UFS file system support 512 character file names when
the system itself is restricted to 256? (Or am I missing
something here?)

TIA, 

-- 
Rich Teer, SCNA, SCSA
President,
Rite Online Inc.
Voice: +1 (250) 979-1638
URL: http://www.rite-online.net