Add code

1 files changed, 74 insertions, 0 deletions

diff --git a/ircd.h b/ircd.h
new file mode 100644
index 0000000..5e787da
--- /dev/null
+++ b/ircd.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2026 Nakidai Perumenei <nakidai at disroot dot org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __IRCD_H__
+#define __IRCD_H__
+
+#include <stddef.h>
+
+
+#define PARAM_MAX 15
+#define PEERS_MAX 512
+#define MESSAGE_MAX 512
+
+#define BIT(x) x##_BIT, x = 1 << x##_BIT, x##_BIT_ = x##_BIT
+#define lengthof(X) (sizeof(X) / sizeof(*(X)))
+
+struct Message
+{
+	char *nick, *user, *host, *command, *params[PARAM_MAX];
+};
+
+struct Peer
+{
+	int fd;
+	enum ClientType { UNREGED, CLIENT, SERVER, SERVICE } type;
+	char nick[16], user[16], real[32], host[64];
+	char **channels;
+	size_t channels_count;
+	char modes[52];
+	char buf[MESSAGE_MAX];
+	size_t recvd;
+};
+
+struct Channel
+{
+	enum { GLOBAL, LOCAL, MODELESS, SAFE } type;
+	char name[64];
+	struct {
+		char mode;
+		char param[MESSAGE_MAX - 1];
+	} *modes;
+	size_t modes_count;
+};
+
+typedef int Handler(struct Message *msg, struct Peer *peer);
+
+extern struct Peer peers[PEERS_MAX];
+extern const char *hostname;
+extern const char *host;
+extern int port;
+
+const char *getnick(const struct Peer *peer);
+void user_reg(struct Peer *peer, const char *nick, const char *user, const char *real);
+
+int parse_message(char *buf, struct Message *msg);
+int handle(struct Peer *peer);
+Handler *find(const char *command);
+int writef(int fd, const char *fmt, ...);
+void ircd(void);
+
+#endif /* __IRCD_H__ */