Bug assignment not found

[Meihui Fan]

Hi,

The recent msh in busybox can not accept a variable with `_' and
complaint the whole assignment `not found'. e.g.:

# foo_foo=foo
foo_foo=foo: not found

The bug in the code is apparent. The following inlined patch will fix it.

Index: msh.c
===================================================================
--- msh.c       (revision 18212)
+++ msh.c       (working copy)
@@ -1205,7 +1205,7 @@
                if (c == '=')
                        return 1;
                c |= 0x20; /* lowercase letters, doesn't affect numbers */
-               if (c != '_'
+               if (c != (0x20 | '_')
                 && (unsigned)(c - '0') > 9  /* not number */
                 && (unsigned)(c - 'a') > 25 /* not letter */
                ) {


-- 
Best Regards,
范美辉 (Meihui Fan)
Chief Engineer
Software Engineering Department
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