From 9de1de6fccf44f9de35aa282c0c9e49b8289133b Mon Sep 17 00:00:00 2001
From: Niklas Hofmann <niklas.hofmann@everbase.net>
Date: Wed, 13 Aug 2014 20:15:12 +0200
Subject: [PATCH] devtools added

---
 src/devtools.c | 158 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/devtools.h |   6 ++
 2 files changed, 164 insertions(+)
 create mode 100644 src/devtools.c
 create mode 100644 src/devtools.h

diff --git a/src/devtools.c b/src/devtools.c
new file mode 100644
index 00000000..9c017307
--- /dev/null
+++ b/src/devtools.c
@@ -0,0 +1,158 @@
+
+#include "system.h"
+
+#include "logger.h"
+#include "meshlink_internal.h"
+#include "node.h"
+#include "splay_tree.h"
+#include "netutl.h"
+#include "xalloc.h"
+
+#include "devtools.h"
+
+static int node_compare(const void *a, const void *b)
+{
+	if(a < b)
+		return -1;
+
+	if(a > b)
+		return 1;
+
+	return 0;
+}
+
+static bool fstrwrite(const char* str, FILE* stream)
+{
+	size_t len = strlen(str);
+
+	if(fwrite((void*)str, 1, len, stream) != len)
+		return false;
+
+	return true;
+}
+
+static const char* itoa(int value)
+{
+	static char buffer[sizeof(int) * 8 + 1];	// not thread safe
+
+	if(snprintf(buffer, sizeof(buffer), "%d", value) == -1)
+		return "";
+
+	return buffer;
+}
+
+bool devtool_export_json_all_edges_state(meshlink_handle_t *mesh, FILE* stream)
+{
+	bool result = true;
+
+	pthread_mutex_lock(&(mesh->mesh_mutex));
+
+	// export edges and nodes
+	size_t node_count = 0;
+	size_t edge_count = 0;
+
+	meshlink_node_t **nodes = meshlink_get_all_nodes(mesh, NULL, &node_count);
+	meshlink_edge_t **edges = meshlink_get_all_edges_state(mesh, NULL, &edge_count);
+
+	if(!nodes || !edges)
+		{ goto fail; }
+
+	// export begin
+	if(!fstrwrite("{\n", stream))
+		goto fail;
+
+	// export nodes
+	if(!fstrwrite("\t\"nodes\": {\n", stream))
+		goto fail;
+
+	for(size_t i = 0; i < node_count; ++i)
+	{
+		if(!fstrwrite("\t\t\"", stream) || !fstrwrite(((node_t*)nodes[i])->name, stream) || !fstrwrite("\": {\n", stream))
+			goto fail;
+
+		if(!fstrwrite("\t\t\t\"name\": \"", stream) || !fstrwrite(((node_t*)nodes[i])->name, stream) || !fstrwrite("\",\n", stream))
+			goto fail;
+
+		if(!fstrwrite("\t\t\t\"options\": ", stream) || !fstrwrite(itoa(((node_t*)nodes[i])->options), stream) || !fstrwrite(",\n", stream))
+			goto fail;
+
+		if(!fstrwrite("\t\t\t\"devclass\": ", stream) || !fstrwrite(itoa(((node_t*)nodes[i])->devclass), stream) || !fstrwrite("\n", stream))
+			goto fail;
+
+		if(!fstrwrite((i+1) != node_count ? "\t\t},\n" : "\t\t}\n", stream))
+			goto fail;
+	}
+
+	if(!fstrwrite("\t},\n", stream))
+		goto fail;
+
+	// export edges
+
+	if(!fstrwrite("\t\"edges\": {\n", stream))
+		goto fail;
+
+	for(size_t i = 0; i < edge_count; ++i)
+	{
+		if(!fstrwrite("\t\t\"", stream) || !fstrwrite(edges[i]->from->name, stream) || !fstrwrite("_to_", stream) || !fstrwrite(edges[i]->to->name, stream) || !fstrwrite("\": {\n", stream))
+			goto fail;
+
+		if(!fstrwrite("\t\t\t\"from\": \"", stream) || !fstrwrite(edges[i]->from->name, stream) || !fstrwrite("\",\n", stream))
+			goto fail;
+
+		if(!fstrwrite("\t\t\t\"to\": \"", stream) || !fstrwrite(edges[i]->to->name, stream) || !fstrwrite("\",\n", stream))
+			goto fail;
+
+		char *host = NULL, *port = NULL, *address = NULL;
+		sockaddr2str((const sockaddr_t *)&(edges[i]->address), &host, &port);
+
+		if(host && port) {
+			xasprintf(&address, "{ \"host\": \"%s\", \"port\": %s }", host, port);
+		}
+
+		free(host);
+		free(port);
+
+		if(!fstrwrite("\t\t\t\"address\": ", stream) || !fstrwrite(address ? address : "null", stream) || !fstrwrite(",\n", stream))
+		{
+			free(address);
+			goto fail;
+		}
+
+		free(address);
+
+		if(!fstrwrite("\t\t\t\"options\": ", stream) || !fstrwrite(itoa(edges[i]->options), stream) || !fstrwrite(",\n", stream))
+			goto fail;
+
+		if(!fstrwrite("\t\t\t\"weight\": ", stream) || !fstrwrite(itoa(edges[i]->weight), stream) || !fstrwrite("\n", stream))
+			goto fail;
+
+		if(!fstrwrite((i+1) != edge_count ? "\t\t},\n" : "\t\t}\n", stream))
+			goto fail;
+	}
+
+	if(!fstrwrite("\t}\n", stream))
+		goto fail;
+
+	// DONE!
+
+	if(!fstrwrite("}", stream))
+		goto fail;
+
+	goto done;
+
+fail:
+	result = false;
+
+done:
+
+	free(nodes);
+
+	for(size_t i = 0; edges && i < edge_count; ++i)
+		{ free(edges[i]); }
+
+	free(edges);
+
+	pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+	return result;
+}
diff --git a/src/devtools.h b/src/devtools.h
new file mode 100644
index 00000000..9ac58d52
--- /dev/null
+++ b/src/devtools.h
@@ -0,0 +1,6 @@
+#ifndef __MESHLINK_DEVTOOLS_H__
+#define __MESHLINK_DEVTOOLS_H__
+
+extern bool devtool_export_json_all_edges_state(meshlink_handle_t *mesh, FILE* stream);
+
+#endif
-- 
2.39.5