--- ./src/pdes.c.orig	2000-05-21 14:07:05.000000000 -0500
+++ ./src/pdes.c	2018-05-07 17:03:36.483003872 -0500
@@ -46,7 +46,7 @@
 
 
 
-static des_key_schedule sched;
+static DES_key_schedule sched;
 
 
 
@@ -55,7 +55,7 @@
 {
     char keybuf[1024+1];
     int fd, res;
-    des_cblock key_bin;
+    DES_cblock key_bin;
 
 
     if (keyfile == NULL)
@@ -100,8 +100,8 @@
     }
 
     keybuf[sizeof(keybuf)-1] = '\0';
-    des_string_to_key(keybuf, &key_bin);
-    des_set_key(&key_bin, sched);
+    DES_string_to_key(keybuf, &key_bin);
+    DES_set_key(&key_bin, &sched);
 
     return 0;
 }
@@ -136,20 +136,20 @@
     for (i = 1; i < 6; i++)
 	r.longs[0] ^= r.longs[i];
 
-    des_ecb_encrypt((des_cblock *)&(r.longs[0]), (des_cblock *)&(r.longs[0]),
-		    sched, DES_ENCRYPT);
+    DES_ecb_encrypt((DES_cblock *)&(r.longs[0]), (DES_cblock *)&(r.longs[0]),
+                   &sched, DES_ENCRYPT);
     
     r.longs[2] ^= r.longs[0];
     r.longs[3] ^= r.longs[1];
     
-    des_ecb_encrypt((des_cblock *)&(r.longs[2]), (des_cblock *)&(r.longs[2]),
-		    sched, DES_ENCRYPT);
+    DES_ecb_encrypt((DES_cblock *)&(r.longs[2]), (DES_cblock *)&(r.longs[0]),
+                   &sched, DES_ENCRYPT);
     
     r.longs[4] ^= r.longs[2];
     r.longs[5] ^= r.longs[3];
     
-    des_ecb_encrypt((des_cblock *)&(r.longs[4]), (des_cblock *)&(r.longs[4]),
-		    sched, DES_ENCRYPT);
+    DES_ecb_encrypt((DES_cblock *)&(r.longs[4]), (DES_cblock *)&(r.longs[0]),
+                   &sched, DES_ENCRYPT);
 
     for (i = 0, j = 0; i < 24; i+=3, j+=4)
     {
--- ./src/idecrypt.c.orig	2001-04-23 15:40:15.000000000 -0500
+++ ./src/idecrypt.c	2018-05-07 17:04:20.897003874 -0500
@@ -100,8 +100,8 @@
     char buf1[32], buf2[32];
     struct sockaddr_gen ip_local, ip_remote;
     int keyfile_fd;
-    des_cblock key_bin;
-    des_key_schedule sched;
+    DES_cblock key_bin;
+    DES_key_schedule sched;
     static char readable[256];
     
 
@@ -118,9 +118,8 @@
     while (read(keyfile_fd, keybuf, sizeof(keybuf)-1) == sizeof(keybuf)-1)
     {
 	keybuf[sizeof(keybuf)-1] = '\0';
-	des_string_to_key(keybuf, &key_bin);
-	des_set_key(&key_bin, sched);
-	
+        DES_string_to_key(keybuf, &key_bin);
+        DES_set_key(&key_bin, &sched);
 	
 	for (i = 0, j = 0; i < 24; i += 3, j += 4)
 	{
@@ -129,21 +128,21 @@
 	    r.chars[i+2] = (to_bin[packet[j+2]] << 6) + (to_bin[packet[j+3]]);
 	}
     
-	des_ecb_encrypt((des_cblock *)&(r.longs[4]),
-			(des_cblock *)&(r.longs[4]),
-			sched, DES_DECRYPT);
+            DES_ecb_encrypt((DES_cblock *)&(r.longs[i+2]),
+                            (DES_cblock *)&(r.longs[i+2]),
+                            &sched, DES_DECRYPT);
 	r.longs[4] ^= r.longs[2];
 	r.longs[5] ^= r.longs[3];
 	
-	des_ecb_encrypt((des_cblock *)&(r.longs[2]),
-			(des_cblock *)&(r.longs[2]),
-			sched, DES_DECRYPT);
+        DES_ecb_encrypt((DES_cblock *)&(r.longs[0]),
+                        (DES_cblock *)&(r.longs[0]),
+                        &sched, DES_DECRYPT);
 	
 	r.longs[2] ^= r.longs[0];
 	r.longs[3] ^= r.longs[1]; 
-	des_ecb_encrypt((des_cblock *)&(r.longs[0]),
-			(des_cblock *)&(r.longs[0]),
-			sched, DES_DECRYPT);
+        DES_ecb_encrypt((DES_cblock *)&(r.longs[0]),
+                        (DES_cblock *)&(r.longs[0]),
+                        &sched, DES_DECRYPT);
 
 	for (i = 1; i < 6; i++)
 	{