Fix support for DragonFly BSD

The __DragonFly__ macros were introduced in issue #1546 along with a
function naming fix, but it was decided they should be handled
separately.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1765)

crypto/engine/eng_all.c

diff --git a/crypto/engine/eng_all.c b/crypto/engine/eng_all.c
index ebe0277..50fe4cb 100644
--- a/crypto/engine/eng_all.c
+++ b/crypto/engine/eng_all.c
@@ -18,7 +18,7 @@
     OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_ALL_BUILTIN, NULL);
 }
 
-#if (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV)) && !defined(OPENSSL_NO_DEPRECATED)
+#if (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(HAVE_CRYPTODEV)) && !defined(OPENSSL_NO_DEPRECATED)
 void ENGINE_setup_bsd_cryptodev(void)
 {
     static int bsd_cryptodev_default_loaded = 0;

crypto/engine/eng_cryptodev.c

diff --git a/crypto/engine/eng_cryptodev.c b/crypto/engine/eng_cryptodev.c
index d63c918..cb24229 100644
--- a/crypto/engine/eng_cryptodev.c
+++ b/crypto/engine/eng_cryptodev.c
@@ -42,9 +42,9 @@
 #include <openssl/crypto.h>
 
 #if (defined(__unix__) || defined(unix)) && !defined(USG) && \
-        (defined(OpenBSD) || defined(__FreeBSD__))
+        (defined(OpenBSD) || defined(__FreeBSD__) || defined(__DragonFly__))
 # include <sys/param.h>
-# if (OpenBSD >= 200112) || ((__FreeBSD_version >= 470101 && __FreeBSD_version < 500000) || __FreeBSD_version >= 500041)
+# if (OpenBSD >= 200112) || ((__FreeBSD_version >= 470101 && __FreeBSD_version < 500000) || __FreeBSD_version >= 500041) || defined(__DragonFly__)
 #  define HAVE_CRYPTODEV
 # endif
 # if (OpenBSD >= 200110)

crypto/init.c

diff --git a/crypto/init.c b/crypto/init.c
index 7423ecc..93ec7bb 100644
--- a/crypto/init.c
+++ b/crypto/init.c
@@ -198,7 +198,7 @@
     return 1;
 }
 # if !defined(OPENSSL_NO_HW) && \
-    (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV))
+    (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(HAVE_CRYPTODEV))
 static CRYPTO_ONCE engine_cryptodev = CRYPTO_ONCE_STATIC_INIT;
 DEFINE_RUN_ONCE_STATIC(ossl_init_engine_cryptodev)
 {
@@ -525,7 +525,7 @@
             && !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl))
         return 0;
 # if !defined(OPENSSL_NO_HW) && \
-    (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV))
+    (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(HAVE_CRYPTODEV))
     if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV)
             && !RUN_ONCE(&engine_cryptodev, ossl_init_engine_cryptodev))
         return 0;

crypto/uid.c

diff --git a/crypto/uid.c b/crypto/uid.c
index 12df8a4..9756d51 100644
--- a/crypto/uid.c
+++ b/crypto/uid.c
@@ -10,7 +10,7 @@
 #include <openssl/crypto.h>
 #include <openssl/opensslconf.h>
 
-#if defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ > 2)
+#if defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ > 2) || defined(__DragonFly__)
 
 # include OPENSSL_UNISTD