>Number:         3352
>Category:       bin
>Synopsis:       In sh, sometimes ${#1} is not numeric
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people (Utility Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Mar 18 07:50:01 1997
>Last-Modified:
>Originator:     Hiroyuki Ito
>Organization:
	None
>Release:        NetBSD-current 1997/03/15
>Environment:
System: NetBSD 1.2C i386


>Description:
(See fix.)
When stack grows, expdest and oexpdest may point different stack blocks.

>How-To-Repeat:
% sh
$ g () echo ${#1}
$ b=cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
$ g $b $b $b
66
$ g $b $b $b $b
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
$ 

>Fix:
*** expand.c.orig	Tue Mar  4 15:36:59 1997
--- expand.c	Tue Mar 18 10:53:46 1997
***************
*** 585,596 ****
  	if (set && subtype != VSPLUS) {
  		/* insert the value of the variable */
  		if (special) {
- 			char *exp, *oexpdest = expdest;
  			varvalue(var, varflags & VSQUOTE, flag & EXP_FULL);
  			if (subtype == VSLENGTH) {
! 				for (exp = oexpdest;exp != expdest; exp++)
! 					varlen++;
! 				expdest = oexpdest;
  			}
  		} else {
  			char const *syntax = (varflags & VSQUOTE) ? DQSYNTAX
--- 585,594 ----
  	if (set && subtype != VSPLUS) {
  		/* insert the value of the variable */
  		if (special) {
  			varvalue(var, varflags & VSQUOTE, flag & EXP_FULL);
  			if (subtype == VSLENGTH) {
! 				varlen = expdest - stackblock() - startloc;
! 				STADJUST(-varlen, expdest);
  			}
  		} else {
  			char const *syntax = (varflags & VSQUOTE) ? DQSYNTAX
>Audit-Trail:
>Unformatted: