57 
  58         if (strcmp(func, "fprintf") == 0 || strcmp(func, "vfprintf")) {
  59                 const char *arg0 = expr_to_str(get_argument_from_call_expr(expr->args, 0));
  60 
  61                 if (arg0 != NULL &&
  62                     (strcmp(arg0, "(&__iob[1])") == 0 ||
  63                     strcmp(arg0, "(&__iob[2])") == 0))
  64                         return;
  65         }
  66 
  67         /*
  68          * Either we got the return type already (direct call),
  69          * or we need to go one further (function pointer call)
  70          */
  71         if (sym == &void_ctype || (sym->type == SYM_FN &&
  72                 get_real_base_type(sym) == &void_ctype))
  73                 return;
  74 
  75         stmt = last_ptr_list((struct ptr_list *)big_statement_stack);
  76 
  77         if (stmt->type == STMT_EXPRESSION && stmt->expression == expr)
  78                 sm_error("unchecked function return '%s'", expr_to_str(expr->fn));
  79 }
  80 
  81 void check_all_func_returns(int id)
  82 {
  83         if (option_project != PROJ_ILLUMOS_KERNEL &&
  84             option_project != PROJ_ILLUMOS_USER)
  85                 return;
  86 
  87         add_hook(&check_func_return, FUNCTION_CALL_HOOK);
  88 }

  57 
  58         if (strcmp(func, "fprintf") == 0 || strcmp(func, "vfprintf")) {
  59                 const char *arg0 = expr_to_str(get_argument_from_call_expr(expr->args, 0));
  60 
  61                 if (arg0 != NULL &&
  62                     (strcmp(arg0, "(&__iob[1])") == 0 ||
  63                     strcmp(arg0, "(&__iob[2])") == 0))
  64                         return;
  65         }
  66 
  67         /*
  68          * Either we got the return type already (direct call),
  69          * or we need to go one further (function pointer call)
  70          */
  71         if (sym == &void_ctype || (sym->type == SYM_FN &&
  72                 get_real_base_type(sym) == &void_ctype))
  73                 return;
  74 
  75         stmt = last_ptr_list((struct ptr_list *)big_statement_stack);
  76 
  77         if (stmt && stmt->type == STMT_EXPRESSION && stmt->expression == expr)
  78                 sm_error("unchecked function return '%s'", expr_to_str(expr->fn));
  79 }
  80 
  81 void check_all_func_returns(int id)
  82 {
  83         if (option_project != PROJ_ILLUMOS_KERNEL &&
  84             option_project != PROJ_ILLUMOS_USER)
  85                 return;
  86 
  87         add_hook(&check_func_return, FUNCTION_CALL_HOOK);
  88 }