magic.h: Present message labels as an encoding of major and minor numbers.

[secnet.git] / msgcode-test.c

diff --git a/msgcode-test.c b/msgcode-test.c
new file mode 100644 (file)
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--- /dev/null
+++ b/msgcode-test.c
@@ -0,0 +1,93 @@
+/*
+ * msgcode-test.c: check that the new message encoding is correct
+ */
+/*
+ * This file is Free Software.  It was originally written for secnet.
+ *
+ * Copyright 2017 Mark Wooding
+ *
+ * You may redistribute secnet as a whole and/or modify it under the
+ * terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3, or (at your option) any
+ * later version.
+ *
+ * You may redistribute this file and/or modify it under the terms of
+ * the GNU General Public License as published by the Free Software
+ * Foundation; either version 2, or (at your option) any later
+ * version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, see
+ * https://www.gnu.org/licenses/gpl.html.
+ */
+
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "magic.h"
+
+#define OLD_LABEL_NAK     0x00000000
+#define OLD_LABEL_MSG0    0x00020200
+#define OLD_LABEL_MSG1    0x01010101
+#define OLD_LABEL_MSG2    0x02020202
+#define OLD_LABEL_MSG3    0x03030303
+#define OLD_LABEL_MSG3BIS 0x13030313
+#define OLD_LABEL_MSG4    0x04040404
+#define OLD_LABEL_MSG5    0x05050505
+#define OLD_LABEL_MSG6    0x06060606
+#define OLD_LABEL_MSG7    0x07070707
+#define OLD_LABEL_MSG8    0x08080808
+#define OLD_LABEL_MSG9    0x09090909
+#define OLD_LABEL_PROD    0x0a0a0a0a
+
+static void check_labels(const char *what, uint32_t new, uint32_t old)
+{
+    if (old != new) {
+       printf("mismatch for %s: %08"PRIx32" (new) /= %08"PRIx32" (old)\n",
+              what, new, old);
+       exit(2);
+    }
+}
+
+int main(void)
+{
+    unsigned i, j;
+    uint32_t m, r, s;
+
+#define CHECK(label) check_labels(#label, LABEL_##label, OLD_LABEL_##label)
+    CHECK(NAK);
+    CHECK(MSG0);
+    CHECK(MSG1);
+    CHECK(MSG2);
+    CHECK(MSG3);
+    CHECK(MSG3BIS);
+    CHECK(MSG4);
+    CHECK(MSG5);
+    CHECK(MSG6);
+    CHECK(MSG7);
+    CHECK(MSG8);
+    CHECK(MSG9);
+    CHECK(PROD);
+#undef CHECK
+    for (i = 0; i < 65536; i++) {
+       for (j = 0; j < 65536; j++) {
+           m = MSGCODE(i, j);
+           r = MSGMAJOR(m); s = MSGMINOR(m);
+           if (r != i || s != j) {
+               printf("roundtrip fail: %04x %04x -> %08"PRIx32" "
+                      "-> %08"PRIx32" %08"PRIx32"\n",
+                      i, j, m, r, s);
+               exit(2);
+           }
+       }
+    }
+
+    return (0);
+}