X509_NAME_print_ex_fp

API 概述

X509_NAME_print_ex_fp 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_print_ex() and X509_NAME_print_ex_fp() return 1 on success or 0 on error if the B<XN_FLAG_COMPAT> is set, which is the same as X509_NAME_print(). Otherwise, it returns -1 on error or other values on success.

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_print_ex_fp")
  }
}

from OpenSSLFunctionCall call, UnaryOperation uop
where
  uop.getOperator() = "!" and
  uop.getOperand() = call.getAnAccess()
select uop, "This negation checks the return value of X509_NAME_print_ex_fp."