From 2e75ffaf88457e7025a63cbdb13a770d35e69d21 Mon Sep 17 00:00:00 2001
From: Mineplay <tristanfranssen@gmail.com>
Date: Tue, 23 Dec 2025 22:37:50 +0100
Subject: [PATCH] feat(server): implemented send for udp and tcp server

---
 include/cosms-core/networking/server.h | 14 +++++++++++++-
 src/networking/server.c                | 18 ++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/include/cosms-core/networking/server.h b/include/cosms-core/networking/server.h
index 9cc9a38..b4db279 100644
--- a/include/cosms-core/networking/server.h
+++ b/include/cosms-core/networking/server.h
@@ -22,7 +22,8 @@ typedef enum {
     COSMS_CORE_SERVER_COULD_NOT_BIND_ADDRESS = -2,
     COSMS_CORE_SERVER_UNKNOWN_ERROR = -3,
     COSMS_CORE_SERVER_TYPE_NOT_SUPPORTED = -4,
-    COSMS_CORE_SERVER_FAILED_TO_RECEIVE = -5
+    COSMS_CORE_SERVER_FAILED_TO_RECEIVE = -5,
+    COSMS_CORE_SERVER_FAILED_TO_SEND = -6
 } CosmsCoreServerError;
 
 struct cosms_core_server {
@@ -76,6 +77,17 @@ CosmsCoreServerError cosms_core_server_destroy(struct cosms_core_server *current
  * @return COSMS_CORE_SERVER_OK or COSMS_CORE_SERVER_CONNECTION_CLOSED on success, or negative error code
  */
 CosmsCoreServerError cosms_core_server_receive(struct cosms_core_server *current_server, struct cosms_core_server_client *client, char *buffer, unsigned int buffer_size, unsigned int *received_bytes);
+/**
+ * @brief Sends message to client.
+ *
+ * @param current_server Pointer to active server struct (must not be NULL)
+ * @param client Pointer to client struct (must be connected to server when using tcp)
+ * @param buffer containing the message to send to the client
+ * @param buffer_size the size of the buffer to send to the client
+ * @param send_bytes the amount of bytes send to the client (can be NULL)
+ * @return COSMS_CORE_SERVER_OK on success, or negative error code
+ */
+CosmsCoreServerError cosms_core_server_send(struct cosms_core_server *current_server, struct cosms_core_server_client *client, char *buffer, unsigned int buffer_size, unsigned int *send_bytes);
 
 /**
  * @brief Converts error code to a string that can be used for printing/logging errors.
diff --git a/src/networking/server.c b/src/networking/server.c
index 5ea9207..c0fafcb 100644
--- a/src/networking/server.c
+++ b/src/networking/server.c
@@ -102,6 +102,24 @@ CosmsCoreServerError cosms_core_server_receive(struct cosms_core_server *current
     return COSMS_CORE_SERVER_OK;
 }
 
+/**
+ * @brief Sends message to client.
+ */
+CosmsCoreServerError cosms_core_server_send(struct cosms_core_server *current_server, struct cosms_core_server_client *client, char *buffer, unsigned int buffer_size, unsigned int *send_bytes) {
+    int bytes_send = 0;
+    if (current_server->type == SOCK_STREAM) {
+        bytes_send = send(client->socket, buffer, buffer_size, 0);
+    } else {
+        bytes_send = sendto(current_server->listening_socket, buffer, buffer_size, 0, (struct sockaddr*)&client->address, client->address_length);
+    }
+
+    if (send_bytes != NULL) {
+        (*send_bytes) = bytes_send;
+    }
+
+    return COSMS_CORE_SERVER_OK;
+}
+
 /**
  * @brief Converts error code to a string that can be used for printing/logging errors.
  */