Renamed examples for logical ordering

examples/01-hello_client.c

@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <errno.h>
+
+#define SOCK_IMPLEMENTATION
+#include "sock.h"
+
+int main(void)
+{
+    char *err = "None";
+
+    Sock *socket = sock_create(SOCK_IPV4, SOCK_TCP);
+    if (socket == NULL) { err = "create"; goto defer; }
+
+    SockAddr addr = sock_addr("127.0.0.1", 6969);
+
+    if (!sock_connect(socket, addr)) { err = "connect"; goto defer; }
+
+    const char *msg = "Hello from client!";
+    char buf[128];
+    memset(buf, 0, sizeof(buf));
+
+    sock_send(socket, msg, strlen(msg));
+    sock_recv(socket, buf, sizeof(buf));
+    printf("%.*s\n", (int)sizeof(buf), buf);
+
+defer:
+    sock_close(socket);
+    fprintf(stderr, "ERROR: %s: %s\n", err, strerror(errno));
+
+    return 0;
+}