X509_NAME_get_index_by_NID

API 概述

X509_NAME_get_index_by_NID 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_NAME_get_index_by_NID() and X509_NAME_get_index_by_OBJ() return the index of the next matching entry or -1 if not found. X509_NAME_get_index_by_NID() can also return -2 if the supplied NID is invalid.

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_NAME_get_index_by_NID")
  }
}

from OpenSSLFunctionCall call, UnaryOperation uop
where
  uop.getOperator() = "!" and
  uop.getOperand() = call.getAnAccess()
select uop, "This negation checks the return value of X509_NAME_get_index_by_NID."