From 0e25563b4aaad1aea65535b5936e2cad9cc9fd88 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Thu, 25 Sep 2025 16:21:41 -0400
Subject: build: Generate shared library API for o.1p

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 examples/hello.c | 134 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 examples/hello.c

(limited to 'examples')

diff --git a/examples/hello.c b/examples/hello.c
new file mode 100644
index 0000000..dfa7767
--- /dev/null
+++ b/examples/hello.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <onet/if_ether.h>
+#include <onet/dgram.h>
+#include <onet/link.h>
+
+#define TEST_STR "Hello from o.1p!! Meow meow!"
+
+static const char *iface = NULL;
+static bool do_recv = false;
+
+static void
+help(char **argv)
+{
+    printf(
+        "usage: %s -i <iface>\n"
+        "[-h]   Show this message\n"
+        "[-i]   Interface to use\n",
+        argv[0]
+    );
+}
+
+static int
+data_send(void)
+{
+    struct onet_link link;
+    int error;
+
+    /* Open a link */
+    error = onet_open(iface, &link);
+    if (error < 0) {
+        return error;
+    }
+
+    /* Send test packet to FF:FF:FF:FF:FF:FF */
+    dgram_send(
+        &link, 0xFFFFFFFFFFFF,
+        TEST_STR, sizeof(TEST_STR)
+    );
+
+    onet_close(&link);
+    return 0;
+}
+
+static int
+data_recv(void)
+{
+    char buf[sizeof(TEST_STR) + 8];
+    struct onet_link link;
+    int error;
+
+    /* Open a link */
+    error = onet_open(iface, &link);
+    if (error < 0) {
+        return error;
+    }
+
+    memset(buf, 0, sizeof(buf));
+
+    /* Recv data */
+    dgram_recv(
+        &link, buf,
+        sizeof(TEST_STR)
+    );
+
+    printf("%s\n", buf);
+    onet_close(&link);
+    return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+    int opt, error;
+
+    if (argc < 2) {
+        printf("error: too few arguments!\n");
+        help(argv);
+        return -1;
+    }
+
+    while ((opt = getopt(argc, argv, "i:hr")) != -1) {
+        switch (opt) {
+        case 'h':
+            help(argv);
+            return -1;
+        case 'i':
+            iface = optarg;
+            break;
+        case 'r':
+            do_recv = true;
+            break;
+        }
+    }
+
+    /* We need an interface */
+    if (iface == NULL) {
+        printf("error: interface not supplied\n");
+        return -1;
+    }
+
+    error = do_recv ? data_recv() : data_send();
+    return error;
+}
-- 
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