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pkcs12_safebag_get_nid

API Overview​

PKCS12_SAFEBAG_get_nid is an API in openssl. This rule belongs to the return value check type. This rule is generated using AURC.

Rule Description​

tip

PKCS12_SAFEBAG_get_nid() and PKCS12_SAFEBAG_get_bag_nid() return the NID of the safeBag or bag object, or -1 if there is no corresponding NID. Other functions return a valid object of the specified type or NULL if an error occurred.

info
  • Tags: return value check
  • Parameter Index: N/A
  • CWE Type: CWE-253

Rule Code​

import cpp

class OpenSSLFunctionCall extends FunctionCall {
  OpenSSLFunctionCall() {
    this.getTarget().hasName("PKCS12_SAFEBAG_get_nid")
  }
}

from OpenSSLFunctionCall call, UnaryOperation uop
where
  uop.getOperator() = "!" and
  uop.getOperand() = call.getAnAccess()
select uop, "This negation checks the return value of PKCS12_SAFEBAG_get_nid."