security_file_certgen: convert xfree_char to UnaryFunctor xfree_functor

diff --git a/src/security/cert_generators/file/certificate_db.cc b/src/security/cert_generators/file/certificate_db.cc
index a2d577a789c1fef87c1dd71bec6741b1efd11cf7..41f6fbd271f4840f5f4c8c6b18e03c25bcbaf241 100644 (file)
--- a/src/security/cert_generators/file/certificate_db.cc
+++ b/src/security/cert_generators/file/certificate_db.cc
@@ -7,6 +7,7 @@
  */
 
 #include "squid.h"
+#include "base/MakeFunctor.h"
 #include "security/cert_generators/file/certificate_db.h"
 
 #include <cerrno>
@@ -282,11 +283,6 @@ bool Ssl::CertificateDb::purgeCert(std::string const & key) {
     return true;
 }
 
-/// DeAllocator functor for unique_ptr that need free(3) from the std C library
-struct xfree_char {
-    void operator()(char *a) { xfree(a); }
-};
-
 bool Ssl::CertificateDb::addCertAndPrivateKey(Security::CertPointer & cert, Ssl::EVP_PKEY_Pointer & pkey, std::string const & useName) {
     const Locker locker(dbLock, Here);
     load();
@@ -297,7 +293,7 @@ bool Ssl::CertificateDb::addCertAndPrivateKey(Security::CertPointer & cert, Ssl:
     std::string serial_string;
     Ssl::BIGNUM_Pointer serial(ASN1_INTEGER_to_BN(ai, NULL));
     {
-        std::unique_ptr<char, xfree_char> hex_bn(BN_bn2hex(serial.get()));
+        std::unique_ptr<char, xfree_functor> hex_bn(BN_bn2hex(serial.get()));
         serial_string = std::string(hex_bn.get());
     }
     row.setValue(cnlSerial, serial_string.c_str());
@@ -310,7 +306,7 @@ bool Ssl::CertificateDb::addCertAndPrivateKey(Security::CertPointer & cert, Ssl:
     }
 
     {
-        std::unique_ptr<char, xfree_char> subject(X509_NAME_oneline(X509_get_subject_name(cert.get()), nullptr, 0));
+        std::unique_ptr<char, xfree_functor> subject(X509_NAME_oneline(X509_get_subject_name(cert.get()), nullptr, 0));
         Security::CertPointer findCert;
         Ssl::EVP_PKEY_Pointer findPkey;
         if (pure_find(useName.empty() ? subject.get() : useName, findCert, findPkey)) {
@@ -353,7 +349,7 @@ bool Ssl::CertificateDb::addCertAndPrivateKey(Security::CertPointer & cert, Ssl:
     if (!useName.empty())
         row.setValue(cnlName, useName.c_str());
     else {
-        std::unique_ptr<char, xfree_char> subject(X509_NAME_oneline(X509_get_subject_name(cert.get()), nullptr, 0));
+        std::unique_ptr<char, xfree_functor> subject(X509_NAME_oneline(X509_get_subject_name(cert.get()), nullptr, 0));
         row.setValue(cnlName, subject.get());
     }