From 2acf288cebfb5aa5a16f858d8649efe6311ddfd2 Mon Sep 17 00:00:00 2001
From: Ritchie Cunningham <ritchie@ritchiecunningham.co.uk>
Date: Sat, 23 Nov 2024 16:32:31 +0000
Subject: [PATCH] [Add] Added launcher for c3po

---
 base/Makefile              |   2 ++
 base/c3po/Makefile         |   8 ++++++++
 base/c3po/c3po.c           |  40 +++++++++++++++++++++++++++++++++++++
 base/c3po/c3po.h           |  15 ++++++++++++++
 base/config/config.c       |   8 ++++++++
 base/config/config.h       |  17 ++++++++++++++++
 base/config/plugin.c       |  25 +++++++++++++++++++++++
 base/config/plugin.h       |  27 +++++++++++++++++++++++++
 base/network_ssl/network.c |   4 ++--
 bin/c3po                   | Bin 0 -> 16304 bytes
 10 files changed, 144 insertions(+), 2 deletions(-)
 create mode 100644 base/c3po/Makefile
 create mode 100644 base/c3po/c3po.c
 create mode 100644 base/c3po/c3po.h
 create mode 100644 base/config/config.c
 create mode 100644 base/config/config.h
 create mode 100644 base/config/plugin.c
 create mode 100644 base/config/plugin.h
 create mode 100755 bin/c3po

diff --git a/base/Makefile b/base/Makefile
index 22f9ee8..e2110b8 100644
--- a/base/Makefile
+++ b/base/Makefile
@@ -1,7 +1,9 @@
 default:
+	cd c3po && make
 	cd network_plain && make
 	cd network_ssl && make
 
 clean:
+	cd c3po && make clean
 	cd network_plain && make clean
 	cd network_ssl && make clean
diff --git a/base/c3po/Makefile b/base/c3po/Makefile
new file mode 100644
index 0000000..446e77e
--- /dev/null
+++ b/base/c3po/Makefile
@@ -0,0 +1,8 @@
+CFLAGS += -Wall -O3
+LDFLAGS += -ldl
+SRC = c3po.c
+
+default:
+	$(CC) $(CFLAGS) $(SRC) -o ../../bin/c3po $(LDFLAGS)
+
+clean:
diff --git a/base/c3po/c3po.c b/base/c3po/c3po.c
new file mode 100644
index 0000000..599758c
--- /dev/null
+++ b/base/c3po/c3po.c
@@ -0,0 +1,40 @@
+#include "c3po.h"
+
+void loadSymbols() {
+    c3po.init = dlsym(c3po.library, "init");
+    c3po.destroy = dlsym(c3po.library, "destroy");
+
+    return;
+}
+
+void reload(int signal) {
+    (c3po.destroy)(c3po.handle);
+    dlclose(c3po.library);
+
+    if((c3po.library = dlopen("base/config.so", RTLD_NOW | RTLD_GLOBAL)) == NULL) {
+        fprintf(stderr, "Fatal Err: base/config.so is no longer loadable.\n");
+        exit(-1);
+    }
+
+    c3po.handle = (c3po.init)();
+
+    exit(-1);
+    return;
+}
+
+int main(int argc, char** argv) {
+    signal(SIGUSR1, reload);
+    signal(SIGSEGV, reload);
+
+    if((c3po.library = dlopen("base/config.so", RTLD_NOW | RTLD_GLOBAL)) == NULL) {
+        fprintf(stderr, "Fatal Err: Unable to load base/config.so. c3po is nothing without it\n");
+        return -1;
+    }
+
+    loadSymbols();
+    c3po.handle = (c3po.init)();
+
+    fprintf(stderr, "init() returned. This shouldn't be possible.\n");
+
+    return -1;
+}
diff --git a/base/c3po/c3po.h b/base/c3po/c3po.h
new file mode 100644
index 0000000..d29334c
--- /dev/null
+++ b/base/c3po/c3po.h
@@ -0,0 +1,15 @@
+#pragma once
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dlfcn.h>
+#include <signal.h>
+
+typedef struct {
+    void*  (*init)();
+    int    (*destroy)(void* handle);
+    void   *library;
+    void   *handle;
+} C3PO;
+
+C3PO c3po;
diff --git a/base/config/config.c b/base/config/config.c
new file mode 100644
index 0000000..5c3690d
--- /dev/null
+++ b/base/config/config.c
@@ -0,0 +1,8 @@
+#include "config.h"
+
+void* init() {
+    if((config = malloc(sizeof(CONFIG))) == NULL) {
+        fprintf(stderr, "[CONFIG] First malloc failed. Let's just give up :D\n");
+        return NULL;
+    }
+}
diff --git a/base/config/config.h b/base/config/config.h
new file mode 100644
index 0000000..83134f6
--- /dev/null
+++ b/base/config/config.h
@@ -0,0 +1,17 @@
+#pragma once
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <dirent.h>
+#include <dlfcn.h>
+#include <signal.h>
+
+#include "plugin.h"
+
+typedef struct {
+#include <dirent.h>
+    PLUGIN plugin;
+} CONFIG;
+
+CONFIG* config;
diff --git a/base/config/plugin.c b/base/config/plugin.c
new file mode 100644
index 0000000..4e5cec1
--- /dev/null
+++ b/base/config/plugin.c
@@ -0,0 +1,25 @@
+#include "config.h"
+
+void pluginInit() {
+    config->plugin.network_plug = NULL;
+    config->plugin.filter_plug = NULL;
+    return;
+}
+
+void pluginCrawl(const char* path) {
+    DIR* dir;
+    struct dirent* file;
+
+    dir = opendir(path);
+
+    do {
+        file = readdir(dir);
+        if(file == NULL)
+            break;
+        pluginProcess(path, file->d_name);
+    } while(1);
+
+    closedir(dir);
+
+    return;
+}
diff --git a/base/config/plugin.h b/base/config/plugin.h
new file mode 100644
index 0000000..fd10689
--- /dev/null
+++ b/base/config/plugin.h
@@ -0,0 +1,27 @@
+#pragma once
+
+struct PLUGIN_NETWORK_ENTRY {
+    void*                        lib_handle;
+    const char*                  name;
+    void*                        (*connect)(const char* host, int port);
+    int                          (*socket)(void* handle);
+    int                          (*read)(void* handle, char* buffer, int buffer_len);
+    int                          (*write)(void* handle, char* buffer, int buffer_len);
+    void*                        (*disconnect)(void* handle);
+    struct PLUGIN_NETWORK_ENTRY* next;
+};
+
+struct PLUGIN_FILTER_ENTRY {
+    void*         lib_handle;
+    const char*   name;
+    int           trig_type;
+    void          *(*init)();
+    void          (*filter)(void* handle, const char* from, const char* host,
+                            const char* channel, const char* message);
+    void          *(*destroy)(void* handle);
+};
+
+typedef struct {
+    struct PLUGIN_NETWORK_ENTRY* network_plugin;
+    struct PLUGIN_FILTER_ENTRY*  filter_plug;
+} PLUGIN;
diff --git a/base/network_ssl/network.c b/base/network_ssl/network.c
index e846fe7..352c635 100644
--- a/base/network_ssl/network.c
+++ b/base/network_ssl/network.c
@@ -17,7 +17,7 @@ void* pluginConnect(const char* host, int port) {
         return NULL;
     }
 
-    connection->ctx == SSL_CTX_new(SSLv23_client_method());
+    connection->ctx = SSL_CTX_new(SSLv23_client_method());
 
     if((connection->bio = BIO_new_ssl_connect(connection->ctx)) == NULL) {
         configErrorPush("Unable to allocate a BIO");
@@ -25,7 +25,7 @@ void* pluginConnect(const char* host, int port) {
         return NULL;
     }
 
-    BIO_get_SSL(connection->bio, &connection->ssl);
+    BIO_get_ssl(connection->bio, &connection->ssl);
     SSL_set_mode(connection->ssl, SSL_MODE_AUTO_RETRY);
     BIO_set_conn_hostname(connection->bio, host);
     BIO_set_conn_int_port(connection->bio, &port);
diff --git a/bin/c3po b/bin/c3po
new file mode 100755
index 0000000000000000000000000000000000000000..e7ff06c02444a9922dcc78c4d6a909d84000e0e5
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