Started on module interface. Currently producing segfaults.

Makefile

@@ -1,6 +1,6 @@
 CC=gcc
-CFLAGS=-g -std=gnu99 -c -lconfig -I./lib
+CFLAGS=-g  -std=gnu99 -c -lconfig -ldl -I./lib
-BINFLAGS=-g -lconfig
+BINFLAGS=-g -rdynamic -ldl -lconfig 
 SRC=./src
 OBJ=./build
 OBJECTS=$(OBJ)/*.o
@@ -13,6 +13,7 @@ main:
 	$(CC) $(CFLAGS) $(SRC)/irc.c    -o $(OBJ)/irc.o
 	$(CC) $(CFLAGS) $(SRC)/util.c   -o $(OBJ)/util.o
 	$(CC) $(CFLAGS) $(SRC)/events.c -o $(OBJ)/events.o
+	$(CC) $(CFLAGS) $(SRC)/module.c -o $(OBJ)/module.o
 	$(CC) -o $(EXEC) $(OBJECTS) $(BINFLAGS)
 	@echo "All Done!"
 

exported.txt

@@ -0,0 +1,8 @@
+{
+	extern "C"
+	{
+		add_handler;
+		irc_privmsg;
+		irc_notice;
+	};
+}

lib/irc.h

@@ -28,6 +28,7 @@ struct irc_conn
 void irc_connect(struct irc_conn *bot);
 void irc_auth(struct irc_conn *bot);
 void irc_notice(struct irc_conn *bot, char *to, char *fmt, ...);
+void irc_privmsg(struct irc_conn *bot, char *to, char *fmt, ...);
 void irc_raw(struct irc_conn *bot, char *fmt, ...);
 void irc_parse_raw(struct irc_conn *bot, char *raw);
 

lib/module.h

@@ -0,0 +1,8 @@
+#ifndef MODULE_H
+#define MODULE_H
+
+#include "irc.h"
+
+void load_module(struct irc_conn *bot, char *where, int stype, char *file);
+
+#endif

mods/test/Makefile

@@ -0,0 +1,4 @@
+gcc -c -fPIC -I../../lib test.c -o test.o
+gcc test.o -shared test.so
+mv test.so ..
+rm test.o

mods/test/test.c

@@ -0,0 +1,26 @@
+#include "irc.h"
+#include "events.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+void hello(struct irc_conn *bot, char *user, char *chan, char *text)
+{
+	printf("hi\n");
+
+	char *buf = (char *)malloc(sizeof(char *) * 500);
+	sprintf(buf, "hi %s", bot->nick);
+
+	printf("trigger: %s\n", buf);
+
+	if (!strcmp(text, buf))
+	{
+		irc_privmsg(bot, chan, "hi %s", user);
+	}
+
+	free(buf);
+}
+
+void mod_init(struct irc_conn *b, char *where)
+{
+	add_handler(PRIVMSG_CHAN, hello);
+}

src/events.c

@@ -1,6 +1,7 @@
 #include "irc.h"
 #include "util.h"
 #include "events.h"
+#include "module.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -29,6 +30,7 @@ void init_events()
 
 void add_handler(int type, void *handler)
 {
+	printf("Installing handler @ %p [type: %i]\n", handler, type);
 	int handler_count;
 
 	if (type == PRIVMSG_SELF)
@@ -63,10 +65,12 @@ void handle_chan_privmsg(struct irc_conn *bot, char *user, char *chan, char *tex
 void handle_self_privmsg(struct irc_conn *bot, char *user, char *text)
 {
 	void (*handler)();
-	char *cmd, *arg;
+	char *cmd, *arg, *modpath;
 	cmd = text;
 	arg = skip(cmd, ' ');
 
+	modpath = (char *)malloc(sizeof(char)*500);
+
 	for (int i = 0; i < privmsg_self.count; i++)
 	{
 		handler = privmsg_self.handlers[i];
@@ -90,12 +94,16 @@ void handle_self_privmsg(struct irc_conn *bot, char *user, char *text)
 		if (strcmp(bot->admin, user))
 		{
 			irc_notice(bot, user, "Loading module: mods/%s.so", arg);
+			sprintf(modpath, "./mods/%s.so", arg);
+			load_module(bot, user, PRIVMSG_SELF, modpath);
 		}
 		else
 		{
 			irc_notice(bot, user, "You are unauthorized to use this command.");
 		}
 	}
+
+	free(modpath);
 }
 
 void handle_join(struct irc_conn *bot, char *user, char *chan)

src/irc.c

@@ -75,6 +75,18 @@ void irc_notice(struct irc_conn *bot, char *to, char *fmt, ...)
 	irc_raw(bot, "NOTICE %s :%s", to, msg_);
 }
 
+void irc_privmsg(struct irc_conn *bot, char *to, char *fmt, ...)
+{
+	char msg_[4096];
+	va_list ap;
+
+	va_start(ap, fmt);
+	vsnprintf(msg_, sizeof msg_, fmt, ap);
+	va_end(ap);
+
+	irc_raw(bot, "PRIVMSG %s :%s", to, msg_);
+}
+
 void irc_raw(struct irc_conn *bot, char *fmt, ...)
 {
 	va_list ap;
@@ -122,7 +134,7 @@ void irc_parse_raw(struct irc_conn *bot, char *raw)
 
 	if (!strcmp("PRIVMSG", raw))
 	{
-		if (strcmp(user, bot->nick))
+		if (!strcmp(par, bot->nick))
 		{
 			handle_self_privmsg(bot, user, text);
 		}

src/main.c

@@ -64,8 +64,6 @@ int main()
 	// Free the config before entering the main loop
 	config_destroy(cf);
 
-	add_handler(PRIVMSG_SELF, hello_cmd);
-	add_handler(PRIVMSG_SELF, hello_cmd);
 
 	for (;;)
 	{

src/module.c

@@ -0,0 +1,57 @@
+#include "irc.h"
+#include "util.h"
+#include "events.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+
+void load_module(struct irc_conn *bot, char *where, int stype, char *file)
+{
+	void *handle;
+	void (*mod_init)(struct irc_conn *bot, char *where, void (*ah)());
+	char *error = (char *)malloc(sizeof(char *)*1024);
+
+
+	handle = dlopen(file, RTLD_NOW | RTLD_GLOBAL);
+	if (!handle)
+	{
+		sprintf(error, "Error: %s", dlerror());
+
+		if (stype == PRIVMSG_CHAN)
+		{
+			irc_privmsg(bot, where, error);
+		}
+		else
+		{
+			irc_notice(bot, where, error);
+		}
+
+		return;
+	}
+
+	dlerror();
+
+	*(void **)(&mod_init) = dlsym(handle, "mod_init");
+
+	if ((error = dlerror()) != NULL)
+	{
+		//sprintf(error, "Error: %s", error);
+		eprint("Error: %s\n", error);
+		if (stype == PRIVMSG_CHAN)
+		{
+			irc_privmsg(bot, where, error);
+		}
+		else
+		{
+			irc_notice(bot, where, error);
+		}
+	}
+
+	(*mod_init)(bot, where);
+
+	dlclose(handle);
+
+	irc_privmsg(bot, where, "Module '%s' loaded.", file);
+
+	free(error);
+}

src/util.c

@@ -25,8 +25,6 @@ void eprint(char *fmt, ...)
 	{
 		fprintf(stderr, "%s\n", strerror(errno));
 	}
-
-	exit(1);
 }
 
 void strlcpy(char *to, const char *from, int len)