abt to big refactor

lib/CMakeLists.txt

@@ -9,6 +9,6 @@ include(FetchContent)
 FetchContent_Declare(
   raylib
   GIT_REPOSITORY  https://github.com/raysan5/raylib
-  GIT_TAG         5.5
+  GIT_TAG         5aa3f0ccc374c1fbfc880402b37871b9c3bb7d8e
 )
 FetchContent_MakeAvailable(raylib)

src/error/error.c

@@ -21,6 +21,7 @@ errorret_t errorCode(const errorret_t code, const char_t *message, ...) {
       "Multiple errors encountered."
     );
     errorPrint();
+    return code;
   }
 
   va_list args;

src/main.c

@@ -7,13 +7,29 @@
 
 #include "console/console.h"
 #include "server/server.h"
+#include "util/string.h"
+
+bool_t exitRequested = false;
 
 void cmdExit(const consolecmdexec_t *exec) {
-  CloseWindow();
+  exitRequested = true;
 }
 
 void cmdServe(const consolecmdexec_t *exec) {
-  serverStart(3030);
+  uint16_t port = 3030;
+  if(exec->argc != 0) {
+    if(!stringToU16(exec->argv[0], &port)) {
+      consolePrint("Invalid port number: %s", exec->argv[0]);
+      return;
+    }
+  }
+
+  errorret_t ret = serverStart(port);
+  if(ret != ERROR_OK) {
+    consolePrint("Failed to start server: %s", errorString());
+    errorFlush();
+    return;
+  }
 }
 
 void cmdClose(const consolecmdexec_t *exec) {
@@ -39,6 +55,8 @@ int main(void) {
     consoleDraw();
 
     EndDrawing();
+
+    if(exitRequested) break;
   }
 
   CloseWindow();

src/server/CMakeLists.txt

@@ -9,3 +9,6 @@ target_sources(${DUSK_TARGET_NAME}
     server.c
     serverclient.c
 )
+
+# Subdirs
+add_subdirectory(packet)

src/server/packet/CMakeLists.txt

@@ -0,0 +1,11 @@
+# Copyright (c) 2025 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Sources
+target_sources(${DUSK_TARGET_NAME}
+  PRIVATE
+    packet.c
+    packetwelcome.c
+)

src/server/packet/packet.c

@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "packet.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+
+void packetInit(
+  packet_t *packet,
+  const packettype_t type,
+  const uint32_t length
+) {
+  assertNotNull(packet, "Packet is NULL");
+
+  memoryZero(packet, sizeof(packet_t));
+  
+  assertTrue(length > 0, "Packet length is 0");
+  assertTrue(
+    length <= sizeof(packetdata_t),
+    "Packet length is too large"
+  );
+
+  packet->type = type;
+  packet->length = length;
+}

src/server/packet/packet.h

@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+#include "packetwelcome.h"
+#include "packetdisconnect.h"
+
+typedef enum {
+  PACKET_TYPE_INVALID = 0,
+  PACKET_TYPE_WELCOME = 1,
+  PACKET_TYPE_DISCONNECT = 2,
+} packettype_t;
+
+typedef union {
+  packetwelcome_t welcome;
+  packetdisconnect_t disconnect;
+} packetdata_t;
+
+typedef struct packet_s {
+  packettype_t type;
+  uint32_t length;
+  packetdata_t data;
+} packet_t;
+
+/**
+ * Initializes a packet with the given type. This is only to be used by sub
+ * initializers, such as packetWelcomeCreate for example.
+ * 
+ * @param packet Pointer to the packet structure to initialize.
+ * @param type The type of the packet.
+ * @param length The length of the packet data.
+ */
+void packetInit(
+  packet_t *packet,
+  const packettype_t type,
+  const uint32_t length
+);

src/server/packet/packetdisconnect.c

@@ -0,0 +1,17 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "packet.h"
+#include "util/memory.h"
+
+void packetDisconnectCreate(
+  packet_t *packet,
+  const packetdisconnectreason_t reason
+) {
+  packetInit(packet, PACKET_TYPE_DISCONNECT, sizeof(packetdisconnect_t));
+  packet->data.disconnect.reason = reason;
+}

src/server/packet/packetdisconnect.h

@@ -0,0 +1,32 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+
+typedef struct packet_s packet_t;
+
+typedef enum {
+  PACKET_DISCONNECT_REASON_UNKNOWN = 0,
+  PACKET_DISCONNECT_REASON_INVALID_VERSION = 1,
+  PACKET_DISCONNECT_REASON_MALFORMED_PACKET = 2,
+} packetdisconnectreason_t;
+
+typedef struct {
+  packetdisconnectreason_t reason;
+} packetdisconnect_t;
+
+/**
+ * Creates a disconnect packet.
+ * 
+ * @param packet Pointer to the packet structure to initialize.
+ * @param reason The reason for the disconnect.
+ */
+void packetDisconnectCreate(
+  packet_t *packet,
+  const packetdisconnectreason_t reason
+);

src/server/packet/packetwelcome.c

@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "packet.h"
+#include "util/memory.h"
+
+void packetWelcomeCreate(packet_t *packet) {
+  packetInit(packet, PACKET_TYPE_WELCOME, PACKET_WELCOME_SIZE);
+  memoryCopy(
+    packet->data.welcome.dusk, PACKET_WELCOME_STRING, PACKET_WELCOME_SIZE
+  );
+}

src/server/packet/packetwelcome.h

@@ -0,0 +1,25 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+
+typedef struct packet_s packet_t;
+
+#define PACKET_WELCOME_STRING "DUSK"
+#define PACKET_WELCOME_SIZE 4
+
+typedef struct {
+  char_t dusk[PACKET_WELCOME_SIZE];
+} packetwelcome_t;
+
+/**
+ * Creates a welcome packet.
+ * 
+ * @param packet Pointer to the packet structure to initialize.
+ */
+void packetWelcomeCreate(packet_t *packet);

src/server/server.c

@@ -14,21 +14,20 @@ server_t SERVER;
 
 void serverInit() {
   memoryZero(&SERVER, sizeof(server_t));
-  pthread_mutex_init(&SERVER.startMutex, NULL);
-  pthread_cond_init(&SERVER.startCond, NULL);
+  SERVER.state = SERVER_STATE_STOPPED;
 }
 
 errorret_t serverStart(uint16_t port) {
-  assertFalse(SERVER.isRunning, "Server is already running?");
-  consolePrint("Starting server on port %d...\n", port);
+  if(SERVER.state != SERVER_STATE_STOPPED) {
+    return error("Server is already running");
+  }
 
-  pthread_mutex_lock(&SERVER.startMutex);
-  SERVER.threadReady = false;
+  consolePrint("Starting server on port %d...\n", port);
+  memoryZero(&SERVER, sizeof(server_t));
 
   // Initialize the server socket
   SERVER.serverSocket = socket(AF_INET, SOCK_STREAM, 0);
   if(SERVER.serverSocket < 0) {
-    pthread_mutex_unlock(&SERVER.startMutex);
     return error("Failed to create socket");
   }
   SERVER.serverAddress.sin_family = AF_INET;
@@ -41,35 +40,32 @@ errorret_t serverStart(uint16_t port) {
     (struct sockaddr *)&SERVER.serverAddress,
     sizeof(SERVER.serverAddress)
   );
-  if(res < 0) {
+  if(res != 0) {
     close(SERVER.serverSocket);
-    pthread_mutex_unlock(&SERVER.startMutex);
     return error("Failed to bind socket");
   }
 
   // Set the socket to listen for incoming connections
   res = listen(SERVER.serverSocket, SERVER_MAX_CLIENTS);
-  if(res < 0) {
+  if(res != 0) {
     close(SERVER.serverSocket);
-    pthread_mutex_unlock(&SERVER.startMutex);
     return error("Failed to listen on socket");
   }
 
-  // Start the server thread
-  SERVER.isRunning = true;
-  if(pthread_create(&SERVER.thread, NULL, serverThread, NULL) != 0) {
+  // Start the server thread.
+  SERVER.state = SERVER_STATE_STARTING;
+  res = pthread_create(&SERVER.thread, NULL, serverThread, NULL);
+  if(res != 0) {
     perror("Failed to create server thread");
     serverStop();
-    pthread_mutex_unlock(&SERVER.startMutex);
     return error("Failed to create server thread");
   }
 
-  // Wait for the server thread to be ready
-  while(!SERVER.threadReady) {
-    pthread_cond_wait(&SERVER.startCond, &SERVER.startMutex);
+  // Wait
+  while(SERVER.state == SERVER_STATE_STARTING) {
+    usleep(1000);
   }
   
-  pthread_mutex_unlock(&SERVER.startMutex);
   consolePrint("Server started.");
   return ERROR_OK;
 }
@@ -78,18 +74,17 @@ void * serverThread(void *arg) {
   struct timeval timeout;
   fd_set readfds;
 
-  pthread_mutex_lock(&SERVER.startMutex);
-  SERVER.threadReady = true;
-  pthread_cond_signal(&SERVER.startCond);
-  pthread_mutex_unlock(&SERVER.startMutex);
+  SERVER.state = SERVER_STATE_RUNNING;
 
-  while(SERVER.isRunning) {
-    usleep(SERVER_TIMEOUT * 1000);
+  while(SERVER.state == SERVER_STATE_RUNNING) {
+    usleep(1000);
 
     FD_ZERO(&readfds);
     FD_SET(SERVER.serverSocket, &readfds);
 
-    timeout.tv_usec = SERVER_TIMEOUT * 1000;
+    // Fix timeout struct
+    timeout.tv_sec = 1;
+    timeout.tv_usec = 0;
 
     // Wait for 
     int32_t activity = select(
@@ -119,7 +114,6 @@ void * serverThread(void *arg) {
       continue;
     }
 
-
     // Initialize the client
     serverclient_t *client = NULL;
     uint8_t i = 0;
@@ -147,14 +141,17 @@ void * serverThread(void *arg) {
       errorFlush();
       close(clientSocket);
     }
-
-    usleep(1000);
   }
 
   printf("Server thread exiting.\n");
-  assertFalse(
-    SERVER.isRunning, "Server thread exiting while server is running?"
+  assertTrue(
+    SERVER.state != SERVER_STATE_RUNNING,
+    "Server thread exiting while server is running?"
   );
+
+  SERVER.thread = 0;
+  SERVER.state = SERVER_STATE_STOPPED;
+  
   return NULL;
 }
 
@@ -168,9 +165,36 @@ uint8_t serverGetClientCount() {
 }
 
 void serverStop() {
-  consolePrint("Stopping server...");
+  if(SERVER.state == SERVER_STATE_STOPPED) return;
 
-  SERVER.isRunning = false;
+  assertTrue(
+    SERVER.state != SERVER_STATE_STARTING,
+    "Stopping a server that is starting?\n"
+  );
+
+  consolePrint("Stopping server...");
+  SERVER.state = SERVER_STATE_STOPPING;
+
+  // Wait for the server thread to finish
+  int32_t maxWaits = 0;
+  while(SERVER.state == SERVER_STATE_STOPPING) {
+    usleep(1000);
+    maxWaits++;
+    if(maxWaits < 1000) continue;
+
+    consolePrint("Server thread did not stop in time, forcing exit.");
+    SERVER.state = SERVER_STATE_STOPPED;
+    break;
+  }
+
+  // Kill the clients
+  uint8_t i = 0;
+  do {
+    serverclient_t *client = &SERVER.clients[i++];
+    serverClientClose(client);
+  } while(i < SERVER_MAX_CLIENTS);
+
+  // Stop the server
   if(SERVER.serverSocket >= 0) {
     close(SERVER.serverSocket);
     SERVER.serverSocket = -1;
@@ -181,9 +205,6 @@ void serverStop() {
     SERVER.thread = 0;
   }
 
-  pthread_mutex_destroy(&SERVER.startMutex);
-  pthread_cond_destroy(&SERVER.startCond);
-
   consolePrint("Server stopped.");
 }
 

src/server/server.h

@@ -12,16 +12,19 @@
 
 #define SERVER_MAX_CLIENTS 32
 #define SERVER_MAX_CHANNELS 2
-#define SERVER_TIMEOUT 200
+
+typedef enum {
+  SERVER_STATE_STOPPED,
+  SERVER_STATE_STARTING,
+  SERVER_STATE_RUNNING,
+  SERVER_STATE_STOPPING
+} serverstate_t;
 
 typedef struct {
-  bool_t isRunning;
+  serverstate_t state;
   pthread_t thread;
   int serverSocket;
   struct sockaddr_in serverAddress;
-  pthread_mutex_t startMutex;
-  pthread_cond_t startCond;
-  bool_t threadReady;
   serverclient_t clients[SERVER_MAX_CLIENTS];
 } server_t;
 

src/server/serverclient.c

@@ -6,6 +6,8 @@
  */
 
 #include "serverclient.h"
+#include "server.h"
+#include "assert/assert.h"
 #include "util/memory.h"
 #include <sys/socket.h>
 #include "console/console.h"
@@ -18,8 +20,9 @@ errorret_t serverClientAccept(
   client->socket = socket;
   client->state = SERVER_CLIENT_STATE_ACCEPTING;
 
-  // Set timeout to 20 seconds
-  client->timeout.tv_usec = SERVER_CLIENT_TIMEOUT * 1000;
+  // Set timeout to 8 seconds
+  client->timeout.tv_sec = 8;
+  client->timeout.tv_usec = 0;
 
   // Create a thread for the client
   if(pthread_create(&client->thread, NULL, serverClientThread, client) != 0) {
@@ -33,6 +36,10 @@ errorret_t serverClientSend(
   const uint8_t *data,
   const size_t len
 ) {
+  assertNotNull(client, "Client is NULL");
+  assertNotNull(data, "Data is NULL");
+  assertTrue(len > 0, "Data length is 0");
+
   if(client->state != SERVER_CLIENT_STATE_ACCEPTING) {
     return error("Client is not accepting");
   }
@@ -48,62 +55,156 @@ errorret_t serverClientSendString(
   return serverClientSend(client, (const uint8_t *)data, strlen(data));
 }
 
+errorret_t serverClientSendPacket(
+  serverclient_t * client,
+  const packet_t *packet
+) {
+  assertNotNull(client, "Client is NULL");
+  assertNotNull(packet, "Packet is NULL");
+  assertTrue(packet->type != PACKET_TYPE_INVALID, "Packet type is INVALID");
+  assertTrue(packet->length > 0, "Packet length is 0");
+  assertTrue(
+    packet->length <= sizeof(packetdata_t),
+    "Packet length is too large (1)"
+  );
+
+  size_t fullSize = sizeof(packet_t) - sizeof(packet->data) + packet->length;
+  assertTrue(fullSize <= sizeof(packet_t), "Packet size is too large (2)");
+
+  return serverClientSend(client, (const uint8_t *)packet, fullSize);
+}
+
 ssize_t serverClientReceive(
   serverclient_t * client,
   uint8_t *buffer,
   const size_t len
 ) {
-  if(client->state != SERVER_CLIENT_STATE_ACCEPTING) return -1;
-  ssize_t received = recv(client->socket, buffer, len, 0);
-  if(received < 0) return received;
-  return received;
+  assertNotNull(client, "Client is NULL");
+  assertNotNull(buffer, "Buffer is NULL");
+  assertTrue(len > 0, "Buffer length is 0");
+
+  if(client->state == SERVER_CLIENT_STATE_DISCONNECTED) return -1;
+  if(client->state == SERVER_CLIENT_STATE_DISCONNECTING) return -1;
+
+  return recv(client->socket, buffer, len, 0);
 }
 
 void serverClientClose(serverclient_t *client) {
-  client->state = SERVER_CLIENT_STATE_DISCONNECTED;
-  close(client->socket);
+  assertNotNull(client, "Client is NULL");
+  if(client->state == SERVER_CLIENT_STATE_DISCONNECTED) return;
+
+  // Mark client as disconnecting
+  client->state = SERVER_CLIENT_STATE_DISCONNECTING;
+
+  int32_t maxWaits = 0;
+  while(client->state == SERVER_CLIENT_STATE_DISCONNECTING) {
+    // Wait for the thread to finish
+    usleep(1000);
+    maxWaits++;
+    if(maxWaits > 10) break;
+  }
+
   pthread_join(client->thread, NULL);
   client->thread = 0;
+  
+  // Close the socket
+  if(client->socket != -1) {
+    close(client->socket);
+    client->socket = -1;
+  }
+
+  client->state = SERVER_CLIENT_STATE_DISCONNECTED;
+  consolePrint("Client %d disconnected.", client->socket);
+}
+
+void serverClientCloseOnThread(serverclient_t *client, const char_t *reason) {
+  assertNotNull(client, "Client is NULL");
+  assertNotNull(reason, "Reason is NULL");
+
+  client->state = SERVER_CLIENT_STATE_DISCONNECTING;
+
+  close(client->socket);
   client->socket = -1;
-  consolePrint("Client disconnected.");
+
+  client->state = SERVER_CLIENT_STATE_DISCONNECTED;
+  client->thread = 0;
+
+  consolePrint("Client %d disconnected: %s", client->socket, reason);
+  pthread_exit(NULL);
 }
 
 void *serverClientThread(void *arg) {
+  assertNotNull(arg, "Client is NULL");
+
   serverclient_t *client = (serverclient_t *)arg;
   char_t buffer[1024];
   ssize_t read;
+  errorret_t err;
+  packet_t packet;
 
-  printf("Client thread started for socket %d.\n", client->socket);
+  consolePrint("Accepting client on socket %d.", client->socket);
 
   // Set socket timeout
-  setsockopt(
+  if(setsockopt(
     client->socket,
     SOL_SOCKET,
     SO_RCVTIMEO,
     &client->timeout,
     sizeof(client->timeout)
-  );
-
-  // Send welcome message
-  serverClientSendString(client, "DUSK|"DUSK_VERSION);
-
-  // Receive version from client
-  read = serverClientReceive(client, buffer, sizeof(buffer));
-
-  // First 5 bytes should be "DUSK|"
-  if(read < 5 || strncmp(buffer, "DUSK|", 5) != 0) {
-    serverClientSendString(client, "ERR|Invalid version (0)");
-    serverClientClose(client);
+  ) < 0) {
+    serverClientCloseOnThread(client, "Failed to set socket timeout");
     return NULL;
   }
 
-  // Next (up to X bytes where X is the length of the version string)
-  // should be the version string
-  buffer[read] = '\0'; // Null-terminate the string
+  // First message from the client should always be "DUSK|VERSION" to match
+  // the server version.
+  {
+    const char_t *expecting = "DUSK|"DUSK_VERSION;
+    read = serverClientReceive(client, buffer, sizeof(buffer));
+    if(read <= 0) {
+      packetDisconnectCreate(&packet, PACKET_DISCONNECT_REASON_INVALID_VERSION);
+      err = serverClientSendPacket(client, &packet);
+      serverClientCloseOnThread(client, "Failed to receive version");
+      return NULL;
+    }
+
+    buffer[read] = '\0'; // Null-terminate the string
+    if(strncmp(buffer, expecting, strlen(expecting)) != 0) {
+      packetDisconnectCreate(&packet, PACKET_DISCONNECT_REASON_INVALID_VERSION);
+      err = serverClientSendPacket(client, &packet);
+      serverClientCloseOnThread(client, "Invalid version");
+      return NULL;
+    }
+  }
+
+  // Send DUSK back!
+  packetWelcomeCreate(&packet);
+  err = serverClientSendPacket(client, &packet);
+  if(err != ERROR_OK) {
+    serverClientCloseOnThread(client, "Failed to send welcome message");
+    return NULL;
+  }
+
+  client->state = SERVER_CLIENT_STATE_CONNECTED;
+  while(client->state == SERVER_CLIENT_STATE_CONNECTED) {
+    read = serverClientReceive(client, buffer, sizeof(buffer));
+
+    if(read <= 0) {
+      serverClientCloseOnThread(client, "Failed to receive data");
+      break;
+    }
+
+    buffer[read] = '\0'; // Null-terminate the string
+    consolePrint("Received: %s", buffer);
 
     
-  printf("Received version: %s\n", buffer);
+    if(SERVER.state != SERVER_STATE_RUNNING) {
+      serverClientCloseOnThread(client, "Server is shutting down");
+      break;
+    }
+  }
 
-  serverClientClose(client);
+  serverClientSendString(client, "Server is shutting down");
+  client->state = SERVER_CLIENT_STATE_DISCONNECTED;
   return NULL;
 }

src/server/serverclient.h

@@ -7,23 +7,28 @@
 
 #pragma once
 #include "error/error.h"
-
-#define SERVER_CLIENT_TIMEOUT 20000 // 20 seconds
+#include "server/packet/packet.h"
 
 typedef enum {
   SERVER_CLIENT_STATE_DISCONNECTED,
   SERVER_CLIENT_STATE_ACCEPTING,
+  SERVER_CLIENT_STATE_CONNECTED,
+  SERVER_CLIENT_STATE_DISCONNECTING,
 } serverclientstate_t;
 
 typedef struct {
   int32_t socket;
   serverclientstate_t state;
-  pthread_t thread; // Add thread field
-  struct timeval timeout; // Add timeout field
+  pthread_t thread;
+  struct timeval timeout;
 } serverclient_t;
 
 /**
  * Accepts an incoming connection from a server client.
+ * 
+ * @param client Pointer to the server client structure.
+ * @param socket The socket file descriptor for the client.
+ * @return Error code indicating success or failure.
  */
 errorret_t serverClientAccept(
   serverclient_t *client,
@@ -56,6 +61,18 @@ errorret_t serverClientSendString(
   const char_t *data
 );
 
+/**
+ * Sends a packet to a server client.
+ * 
+ * @param client Pointer to the server client structure.
+ * @param packet Pointer to the packet to send.
+ * @return Error code indicating success or failure.
+ */
+errorret_t serverClientSendPacket(
+  serverclient_t * client,
+  const packet_t *packet
+);
+
 /**
  * Receives data from a server client.
  * 
@@ -71,15 +88,28 @@ ssize_t serverClientReceive(
 );
 
 /**
- * Closes the connection to a server client.
+ * Closes the connection to a server client. Waits for the thread to finish.
+ * 
+ * @param client Pointer to the server client structure.
  */
-void serverClientClose(
-  serverclient_t *client
+void serverClientClose(serverclient_t *client);
+
+/**
+ * Closes the connection to a server client without waiting for the thread to
+ * finish.
+ * 
+ * @param client Pointer to the server client structure.
+ * @param reason Reason for closing the connection.
+ */
+void serverClientCloseOnThread(
+  serverclient_t *client,
+  const char_t *reason
 );
 
 /**
  * Thread function for handling a server client.
  * 
  * @param arg Pointer to the server client structure.
+ * @return NULL.
  */
 void *serverClientThread(void *arg);

src/util/string.c

@@ -83,3 +83,45 @@ int32_t stringFormatVA(
   assertTrue(ret < destSize, "Formatted string is too long.");
   return ret;
 }
+
+bool_t stringToI32(const char_t *str, int32_t *out) {
+  assertNotNull(str, "str must not be NULL");
+  assertNotNull(out, "out must not be NULL");
+
+  char_t *endptr;
+  errno = 0;
+  long int result = strtol(str, &endptr, 10);
+  if (errno != 0 || *endptr != '\0') {
+    return false;
+  }
+  *out = (int32_t)result;
+  return true;
+}
+
+bool_t stringToI64(const char_t *str, int64_t *out) {
+  assertNotNull(str, "str must not be NULL");
+  assertNotNull(out, "out must not be NULL");
+
+  char_t *endptr;
+  errno = 0;
+  long long int result = strtoll(str, &endptr, 10);
+  if (errno != 0 || *endptr != '\0') {
+    return false;
+  }
+  *out = (int64_t)result;
+  return true;
+}
+
+bool_t stringToU16(const char_t *str, uint16_t *out) {
+  assertNotNull(str, "str must not be NULL");
+  assertNotNull(out, "out must not be NULL");
+
+  char_t *endptr;
+  errno = 0;
+  unsigned long int result = strtoul(str, &endptr, 10);
+  if (errno != 0 || *endptr != '\0' || result > UINT16_MAX) {
+    return false;
+  }
+  *out = (uint16_t)result;
+  return true;
+}

src/util/string.h

@@ -80,3 +80,30 @@ int32_t stringFormatVA(
   char_t *format,
   va_list args
 );
+
+/**
+ * Converts a string to an integer.
+ * 
+ * @param str The string to convert.
+ * @param out The output integer.
+ * @return TRUE if the conversion was successful, FALSE otherwise.
+ */
+bool_t stringToI32(const char_t *str, int32_t *out);
+
+/**
+ * Converts a string to a signed 16-bit integer.
+ * 
+ * @param str The string to convert.
+ * @param out The output signed integer.
+ * @return TRUE if the conversion was successful, FALSE otherwise.
+ */
+bool_t stringToI16(const char_t *str, int16_t *out);
+
+/**
+ * Converts a string to an unsigned 16-bit integer.
+ * 
+ * @param str The string to convert.
+ * @param out The output unsigned integer.
+ * @return TRUE if the conversion was successful, FALSE otherwise.
+ */
+bool_t stringToU16(const char_t *str, uint16_t *out);