bug#1293: [BusyBox] bug#1293: busybox 0.60.5 ash builtin sh infinite loop

[Vladimir N. Oleynik]

> Package: busybox
> Version: 0.60.5
> Severity: normal
> 
> With following lines set in Config.h,
> #define BB_ASH
> #define BB_FEATURE_SH_IS_ASH
> #define BB_FEATURE_SH_STANDALONE_SHELL
> 
> Given any script foo.sh, the command
>      sh foo.sh
> now hangs in an infinite loop in ash.c::findvar() before
> actually executing foo.sh, while
>      /bin/sh foo.sh
> works.  This bug was not present in busybox 0.60.2.

> Disabling BB_FEATURE_SH_STANDALONE_SHELL seems to prevent
> the problem; I can then happily invoke ash from inside ash
> without it hanging.  Wonder what change since 0.60.2 broke this?

You are right.
I don`t support STANDALONE_SHELL and ALWAYS_WIN options.
This changes to ash vers after 0.60.2 is not my.
I can understand this full.
For quick hack patch attached.


--w
vodz
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