feat(server): added socket creation and address binding for server

.gitignore

@@ -66,3 +66,5 @@ Module.symvers
 Mkfile.old
 dkms.conf
 
+build
+.cache

CONVENTION.md

@@ -53,7 +53,7 @@ struct qnet_server {
     unsigned short port;
 
     int socket;
-}
+};
 ```
 
 ### Enums

include/qnet/network.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) Tristan Franssen, <tristanfranssen@strawhats.nl>.
+ *
+ * This software is licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License in the file LICENSE or at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+#ifndef QNET_NETWORK
+#define QNET_NETWORK
+
+#if defined(__linux__)
+#include <arpa/inet.h>
+
+#define QNET_INVALID_SOCKET -1
+
+typedef int qnet_socket_type;
+#elif defined(_WIN32)
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
+#define QNET_INVALID_SOCKET INVALID_SOCKET
+
+typedef SOCKET qnet_socket_type;
+#endif
+
+typedef enum {
+    QNET_NETWORK_ERROR_OK = 0,
+    QNET_NETWORK_ERROR_INVALID_IP = -1
+} QNetNetworkError;
+
+inline void qnet_socket_init(qnet_socket_type *socket) { *socket = 0; }
+
+QNetNetworkError qnet_ip4_address(const char *ip, unsigned short port, struct sockaddr_in *address);
+QNetNetworkError qnet_ip6_address(const char *ip, unsigned short port, struct sockaddr_in6 *address);
+
+#endif /* QNET_NETWORK */

include/qnet/server.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) Tristan Franssen, <tristanfranssen@strawhats.nl>.
+ *
+ * This software is licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License in the file LICENSE or at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+#ifndef QNET_SERVER
+#define QNET_SERVER
+
+#include "qnet/network.h"
+
+typedef enum {
+    QNET_SERVER_ERROR_OK = 0,
+    QNET_SERVER_ERROR_FAILED_TO_CREATE_SOCKET = -1,
+    QNET_SERVER_ERROR_INVALID_ADDRESS = -2,
+    QNET_SERVER_ERROR_FAILED_TO_BIND_ADDRESS = -3
+} QNetServerError;
+
+QNetServerError qnet_server_tcp_bind(qnet_socket_type *server_socket, struct sockaddr *address);
+QNetServerError qnet_server_udp_bind(qnet_socket_type *server_socket, struct sockaddr *address);
+
+#endif

src/network.c

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) Tristan Franssen, <tristanfranssen@strawhats.nl>.
+ *
+ * This software is licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License in the file LICENSE or at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+#include "qnet/network.h"
+
+QNetNetworkError qnet_ip4_address(const char *ip, unsigned short port, struct sockaddr_in *address) {
+    address->sin_family = AF_INET;
+    address->sin_port = htons(port);
+
+    int result = inet_pton(address->sin_family, ip, &address->sin_addr.s_addr);
+    if (result != 1) {
+        return QNET_NETWORK_ERROR_INVALID_IP;
+    }
+
+    return QNET_NETWORK_ERROR_OK;
+}
+
+QNetNetworkError qnet_ip6_address(const char *ip, unsigned short port, struct sockaddr_in6 *address) {
+    address->sin6_family = AF_INET6;
+    address->sin6_port = htons(port);
+
+    int result = inet_pton(address->sin6_family, ip, &address->sin6_addr.s6_addr);
+    if (result != 1) {
+        return QNET_NETWORK_ERROR_INVALID_IP;
+    }
+
+    return QNET_NETWORK_ERROR_OK;
+}

src/server.c

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) Tristan Franssen, <tristanfranssen@strawhats.nl>.
+ *
+ * This software is licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License in the file LICENSE or at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+#include "qnet/server.h"
+
+QNetServerError qnet_tcp_bind(qnet_socket_type *server_socket, struct sockaddr *address) {
+    qnet_socket_type tcp_socket = socket(address->sa_family, SOCK_STREAM, 0);
+    if (tcp_socket == QNET_INVALID_SOCKET) {
+        return QNET_SERVER_ERROR_FAILED_TO_CREATE_SOCKET;
+    }
+
+    unsigned int address_length;
+    if (address->sa_family == AF_INET) {
+        address_length = sizeof(struct sockaddr_in);
+    } else if (address->sa_family == AF_INET6) {
+        address_length = sizeof(struct sockaddr_in6);
+    } else {
+        return QNET_SERVER_ERROR_INVALID_ADDRESS;
+    }
+
+    int result = bind(tcp_socket, address, address_length);
+    if (result == -1) {
+        return QNET_SERVER_ERROR_FAILED_TO_BIND_ADDRESS;
+    }
+
+    *server_socket = tcp_socket;
+    return QNET_SERVER_ERROR_OK;
+}
+
+QNetServerError qnet_udp_bind(qnet_socket_type *server_socket, struct sockaddr *address) {
+    qnet_socket_type udp_socket = socket(address->sa_family, SOCK_DGRAM, 0);
+    if (udp_socket == QNET_INVALID_SOCKET) {
+        return QNET_SERVER_ERROR_FAILED_TO_CREATE_SOCKET;
+    }
+
+    unsigned int address_length;
+    if (address->sa_family == AF_INET) {
+        address_length = sizeof(struct sockaddr_in);
+    } else if (address->sa_family == AF_INET6) {
+        address_length = sizeof(struct sockaddr_in6);
+    } else {
+        return QNET_SERVER_ERROR_INVALID_ADDRESS;
+    }
+
+    int result = bind(udp_socket, address, address_length);
+    if (result == -1) {
+        return QNET_SERVER_ERROR_FAILED_TO_BIND_ADDRESS;
+    }
+
+    *server_socket = udp_socket;
+    return QNET_SERVER_ERROR_OK;
+}

tests/unit/network.c

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) Tristan Franssen, <tristanfranssen@strawhats.nl>.
+ *
+ * This software is licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License in the file LICENSE or at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+#include "unit/network.h"
+#include "qnet/network.h"
+
+QNET_TEST_IMPLEMENT(network_create_ip4_address, 
+    struct sockaddr_in address;
+    QNetNetworkError error = qnet_ip4_address("127.0.0.1", 8080, &address);
+    if (error != QNET_NETWORK_ERROR_OK) {
+        return "Failed to create ip4 address, address invalid";
+    }
+
+    return NULL;
+)
+
+QNET_TEST_IMPLEMENT(network_create_invalid_ip4_address, 
+    struct sockaddr_in address;
+    QNetNetworkError error = qnet_ip4_address("3012.23.54546.2.1", 8080, &address);
+    if (error != QNET_NETWORK_ERROR_INVALID_IP) {
+        return "Was able to create ip4 address with invalid ip";
+    }
+
+    return NULL;
+)
+
+QNET_TEST_IMPLEMENT(network_create_ip6_address, 
+    struct sockaddr_in6 address;
+    QNetNetworkError error = qnet_ip6_address("0:0:0:0:0:0:0:1", 8080, &address);
+    if (error != QNET_NETWORK_ERROR_OK) {
+        return "Failed to create ip6 address, address invalid";
+    }
+
+    return NULL;
+)
+
+QNET_TEST_IMPLEMENT(network_create_invalid_ip6_address, 
+    struct sockaddr_in6 address;
+    QNetNetworkError error = qnet_ip6_address("0:0:0:0:0:0:0:1:3:2:1", 8080, &address);
+    if (error != QNET_NETWORK_ERROR_INVALID_IP) {
+        return "Was able to create ip6 address with invalid ip";
+    }
+
+    return NULL;
+)

tests/unit/network.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) Tristan Franssen, <tristanfranssen@strawhats.nl>.
+ *
+ * This software is licensed under the Apache License, Version 2.0 (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License in the file LICENSE or at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+#ifndef QNET_NETWORK_TEST
+#define QNET_NETWORK_TEST
+
+#include "test.h"
+
+QNET_TEST_DEFINE(network_create_ip4_address);
+QNET_TEST_DEFINE(network_create_invalid_ip4_address);
+QNET_TEST_DEFINE(network_create_ip6_address);
+QNET_TEST_DEFINE(network_create_invalid_ip6_address);
+
+QNET_TEST_EXPORT(network, 
+    QNET_TEST_EXPORT_TEST(network_create_ip4_address),
+    QNET_TEST_EXPORT_TEST(network_create_invalid_ip4_address),
+    QNET_TEST_EXPORT_TEST(network_create_ip6_address),
+    QNET_TEST_EXPORT_TEST(network_create_invalid_ip6_address)
+);
+
+#endif

tests/unit/unit.h

@@ -10,8 +10,10 @@
 #define QNET_UNIT
 
 #include "test.h"
+#include "network.h"
 
 QNET_TEST_START
+    QNET_TEST_IMPORT(network)
 QNET_TEST_END
 
 #endif /* QNET_UNIT */