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diff -up ksh-20120801/src/cmd/ksh93/sh/init.c.fixset ksh-20120801/src/cmd/ksh93/sh/init.c
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--- ksh-20120801/src/cmd/ksh93/sh/init.c.fixset 2014-11-03 15:45:36.510997271 +0100
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+++ ksh-20120801/src/cmd/ksh93/sh/init.c 2014-11-03 16:20:44.398917280 +0100
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@@ -2003,8 +2003,91 @@ static Dt_t *inittree(Shell_t *shp,const
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* skip over items that are not name-value pairs
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*/
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+
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static void env_init(Shell_t *shp)
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{
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+ register char *cp;
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+ register Namval_t *np;
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+ register char **ep=environ;
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+ register char *next=0;
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+#ifdef _ENV_H
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+ shp->env = env_open(environ,3);
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+ env_delete(shp->env,"_");
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+#endif
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+ if(ep)
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+ {
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+ while(cp= *ep++)
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+ {
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+ if(*cp=='A' && cp[1]=='_' && cp[2]=='_' && cp[3]=='z' && cp[4]=='=')
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+ next = cp+4;
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+ else if(np=nv_open(cp,shp->var_tree,(NV_EXPORT|NV_IDENT|NV_ASSIGN|NV_NOFAIL)))
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+ {
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+ nv_onattr(np,NV_IMPORT);
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+ np->nvenv = cp;
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+ nv_close(np);
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+ }
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+ else /* swap with front */
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+ {
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+ ep[-1] = environ[shp->nenv];
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+ environ[shp->nenv++] = cp;
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+ }
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+ }
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+ while(cp=next)
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+ {
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+ if(next = strchr(++cp,'='))
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+ *next = 0;
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+ np = nv_search(cp+2,shp->var_tree,NV_ADD);
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+ if(np!=SHLVL && nv_isattr(np,NV_IMPORT|NV_EXPORT))
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+ {
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+ int flag = *(unsigned char*)cp-' ';
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+ int size = *(unsigned char*)(cp+1)-' ';
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+ if((flag&NV_INTEGER) && size==0)
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+ {
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+ /* check for floating*/
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+ char *ep,*val = nv_getval(np);
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+ strtol(val,&ep,10);
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+ if(*ep=='.' || *ep=='e' || *ep=='E')
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+ {
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+ char *lp;
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+ flag |= NV_DOUBLE;
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+ if(*ep=='.')
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+ {
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+ strtol(ep+1,&lp,10);
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+ if(*lp)
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+ ep = lp;
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+ }
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+ if(*ep && *ep!='.')
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+ {
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+ flag |= NV_EXPNOTE;
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+ size = ep-val;
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+ }
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+ else
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+ size = strlen(ep);
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+ size--;
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+ }
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+ }
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+ nv_newattr(np,flag|NV_IMPORT|NV_EXPORT,size);
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+ }
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+ else
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+ cp += 2;
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+ }
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+ }
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+#ifdef _ENV_H
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+ env_delete(shp->env,e_envmarker);
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+#endif
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+ if(nv_isnull(PWDNOD) || nv_isattr(PWDNOD,NV_TAGGED))
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+ {
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+ nv_offattr(PWDNOD,NV_TAGGED);
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+ path_pwd(shp,0);
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+ }
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+ if((cp = nv_getval(SHELLNOD)) && (sh_type(cp)&SH_TYPE_RESTRICTED))
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+ sh_onoption(SH_RESTRICTED); /* restricted shell */
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+ return;
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+}
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+
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+
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+static void env_init_backup(Shell_t *shp)
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+{
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register char *cp;
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register Namval_t *np,*mp;
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register char **ep=environ;
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