add lua plugin support

1 files changed, 55 insertions, 0 deletions

diff --git a/plugin.c b/plugin.c
new file mode 100644
index 0000000..25a8464
--- /dev/null
+++ b/plugin.c
@@ -0,0 +1,55 @@
+/*
+ * uhttpd - Tiny single-threaded httpd - Main header
+ *
+ *   Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
+ *   Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
+ *
+ *  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 at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include <dlfcn.h>
+#include "uhttpd.h"
+#include "plugin.h"
+
+static const struct uhttpd_ops ops = {
+	.dispatch_add = uh_dispatch_add,
+	.path_match = uh_path_match,
+	.create_process = uh_create_process,
+	.get_process_vars = uh_get_process_vars,
+	.client_error = uh_client_error,
+	.chunk_write = uh_chunk_write,
+	.urlencode = uh_urlencode,
+	.urldecode = uh_urldecode,
+};
+
+int uh_plugin_init(const char *name)
+{
+	struct uhttpd_plugin *p;
+	const char *sym;
+	void *dlh;
+
+	dlh = dlopen(name, RTLD_LAZY | RTLD_LOCAL);
+	if (!dlh) {
+		fprintf(stderr, "Could not open plugin %s: %s\n", name, dlerror());
+		return -ENOENT;
+	}
+
+	sym = "uhttpd_plugin";
+	p = dlsym(dlh, sym);
+	if (!p) {
+		fprintf(stderr, "Could not find symbol '%s' in plugin '%s'\n", sym, name);
+		return -ENOENT;
+	}
+
+	return p->init(&ops, &conf);
+}