do/aexec


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bool
do_aexec(really,arglast)
STR *really;
int *arglast;
{
    register STR **st = stack->ary_array;
    register int sp = arglast[1];
    register int items = arglast[2] - sp;
    register char **a;
    char *tmps;

    if (items) {
	New(401,Argv, items+1, char*);
	a = Argv;
	for (st += ++sp; items > 0; items--,st++) {
	    if (*st)
		*a++ = str_get(*st);
	    else
		*a++ = "";
	}
	*a = Nullch;
#ifdef TAINT
	if (*Argv[0] != '/')	/* will execvp use PATH? */
	    taintenv();		/* testing IFS here is overkill, probably */
#endif
	if (really && *(tmps = str_get(really)))
	    execvp(tmps,Argv);
	else
	    execvp(Argv[0],Argv);
    }
    do_execfree();
    return FALSE;
}