X509_LOOKUP_ctrl

API 概述

X509_LOOKUP_ctrl 是 openssl 中的一个API。该规属于return value check 类型。该规则是使用 AURC 生成的。

规则描述

提示

X509_LOOKUP_ctrl() returns -1 if the B<X509_LOOKUP> doesn't have an associated B<X509_LOOKUP_METHOD>, or 1 if the X<509_LOOKUP_METHOD> doesn't have a control function. Otherwise, it returns what the control function in the B<X509_LOOKUP_METHOD> returns, which is usually 1 on success and 0 in error.

信息

标签：return value check

参数下标：N/A

CWE类别：CWE-253

规则代码

import cpp

class OpenSSLFunctionCall extends FunctionCall {
  OpenSSLFunctionCall() {
    this.getTarget().hasName("X509_LOOKUP_ctrl")
  }
}

from OpenSSLFunctionCall call, UnaryOperation uop
where
  uop.getOperator() = "!" and
  uop.getOperand() = call.getAnAccess()
select uop, "This negation checks the return value of X509_LOOKUP_ctrl."