Renamed examples for logical ordering

examples/03-udp_server.c

@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define SOCK_IMPLEMENTATION
+#include "sock.h"
+
+int main(void)
+{
+    Sock *server = sock_create(SOCK_IPV4, SOCK_UDP);
+    if (server == NULL) {
+        perror("sock_create");
+        return 1;
+    }
+
+    SockAddr server_addr = sock_addr("0.0.0.0", 6969);
+    if (!sock_bind(server, server_addr)) {
+        perror("sock_bind");
+        sock_close(server);
+        return 1;
+    }
+
+    printf("Server is listening on port %d...\n", server_addr.port);
+
+    SockAddr client_addr;
+    char buf[64];
+
+    while (true) {
+        ssize_t rec = sock_recvfrom(server, buf, sizeof(buf), &client_addr);
+        if (rec < 0) {
+            perror("sock_recvfrom");
+            break;
+        }
+
+        buf[rec] = '\0';
+        printf("Received from %s:%d \"%s\"\n", client_addr.str,
+                client_addr.port, buf);
+    }
+
+    sock_close(server);
+    return 0;
+}