Use C stdio functions for score files and save files.

Switching from Unix file descriptor operations to C standard FILE*
functions will reduce portability problems.

arogue7/main.c

@@ -16,6 +16,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <signal.h>
+#include <errno.h>
 #ifdef BSD
 #include <sys/time.h>
 #else
@@ -550,11 +551,21 @@ setup(void)
     nonl();
 }
 
+void
+reopen_score(void)
+{
+    if (scoreboard != NULL)
+        fclose(scoreboard);
+    scoreboard = fopen(score_file, "r+");
+    if (scoreboard == NULL && errno == ENOENT)
+        scoreboard = fopen(score_file, "w+");
+}
+
 void
 open_records(void)
 {
-    if (scorefd == -1)
-        md_reopen_score();
+    if (scoreboard == NULL)
+        reopen_score();
 #ifdef LOGFILE
     if (logfile == NULL)
         logfile = fopen(LOGFILE, "a");