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x509_name_print_ex_fp

API Overview​

X509_NAME_print_ex_fp is an API in openssl. This rule belongs to the return value check type. This rule is generated using AURC.

Rule Description​

tip

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.

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("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."