ctl: Replace hostname with IP address

include/ctl-server.h

@@ -19,16 +19,21 @@
 
 #include "output.h"
 
+#include <sys/socket.h>
+
 struct ctl;
 struct cmd_response;
 
 struct ctl_server_client;
 
 struct ctl_server_client_info {
 	int id;
-	const char *hostname;
-	const char *username;
-	const char *seat;
+	union {
+		struct sockaddr_storage address_storage;
+		struct sockaddr address;
+	};
+	const char* username;
+	const char* seat;
 };
 
 struct ctl_server_output {

meson.build

@@ -57,7 +57,7 @@ wayland_client = dependency('wayland-client')
 jansson = dependency('jansson')
 
 aml_version = ['>=0.3.0', '<0.4.0']
-neatvnc_version = ['>=0.7.0', '<0.9.0']
+neatvnc_version = ['>=0.8', '<0.9.0']
 
 neatvnc_project = subproject(
 	'neatvnc',

src/ctl-client.c

@@ -354,17 +354,17 @@ static void pretty_client_list(json_t* data)
 	json_t* value;
 	json_array_foreach(data, i, value) {
 		char* id = NULL;
-		char* hostname = NULL;
+		char* address = NULL;
 		char* username = NULL;
 
-		json_unpack(value, "{s:s, s?s, s?s}", "id", &id, "hostname",
-				&hostname, "username", &username);
+		json_unpack(value, "{s:s, s?s, s?s}", "id", &id, "address",
+				&address, "username", &username);
 		printf("  %s: ", id);
 
 		if (username)
 			printf("%s@", username);
 
-		printf("%s\n", hostname ? hostname : "<unknown>");
+		printf("%s\n", address ? address : "<unknown>");
 	}
 }
 

src/ctl-commands.c

@@ -98,8 +98,8 @@ struct cmd_info ctl_command_list[] = {
 	{ "connection_count", \
 		"The total number of connected VNC clients " including " this one.", \
 		"<integer>" }, \
-	{ "hostname", \
-		"The hostname or IP address of this client (may be null)", \
+	{ "address", \
+		"The IP address of this client (may be null)", \
 		"<name|ip>" }, \
 	{ "username", \
 		"The username used to authentice this client (may be null).", \

src/ctl-server.c

@@ -27,6 +27,7 @@
 #include <neatvnc.h>
 #include <aml.h>
 #include <jansson.h>
+#include <arpa/inet.h>
 
 #include "output.h"
 #include "ctl-commands.h"
@@ -362,6 +363,25 @@ static struct ctl_server_client* ctl_server_client_next(struct ctl* self,
 	return self->actions.client_next(self, prev);
 }
 
+static int sockaddr_to_string(char* dst, size_t sz, const struct sockaddr* addr)
+{
+	struct sockaddr_in* sa_in = (struct sockaddr_in*)addr;
+	struct sockaddr_in6* sa_in6 = (struct sockaddr_in6*)addr;
+
+	switch (addr->sa_family) {
+	case AF_INET:
+		inet_ntop(addr->sa_family, &sa_in->sin_addr, dst, sz);
+		return 0;
+	case AF_INET6:
+		inet_ntop(addr->sa_family, &sa_in6->sin6_addr, dst, sz);
+		return 0;
+	}
+	nvnc_log(NVNC_LOG_DEBUG,
+			"Don't know how to convert sa_family %d to string",
+			addr->sa_family);
+	return -1;
+}
+
 static void ctl_server_client_get_info(struct ctl* self,
 		const struct ctl_server_client* client,
 		struct ctl_server_client_info* info)
@@ -384,9 +404,12 @@ static struct cmd_response* generate_vnc_client_list(struct ctl* self)
 		snprintf(id_str, sizeof(id_str), "%d", info.id);
 		json_t* packed = json_pack("{s:s}", "id", id_str);
 
-		if (info.hostname)
-			json_object_set_new(packed, "hostname",
-					json_string(info.hostname));
+		char address_string[256];
+		if (sockaddr_to_string(address_string, sizeof(address_string),
+					&info.address) == 0) {
+			json_object_set_new(packed, "address",
+					json_string(address_string));
+		}
 
 		if (info.username)
 			json_object_set_new(packed, "username",
@@ -897,9 +920,13 @@ json_t* pack_connection_event_params(
 	char id_str[64];
 	snprintf(id_str, sizeof(id_str), "%d", info->id);
 
+	char address_string[256];
+	bool have_addr = sockaddr_to_string(address_string,
+			sizeof(address_string), &info->address) == 0;
+
 	return json_pack("{s:s, s:s?, s:s?, s:s?, s:i}",
 			"id", id_str,
-			"hostname", info->hostname,
+			"address", have_addr ? address_string : NULL,
 			"username", info->username,
 			"seat", info->seat,
 			"connection_count", new_connection_count);

src/main.c

@@ -636,17 +636,24 @@ static struct ctl_server_client *client_next(struct ctl* ctl,
 		(struct ctl_server_client*)nvnc_client_first(self->nvnc);
 }
 
+static void compose_client_info(const struct wayvnc_client* client,
+		struct ctl_server_client_info* info)
+{
+	info->id = client->id;
+	socklen_t addrlen = sizeof(info->address);
+	nvnc_client_get_address(client->nvnc_client,
+			(struct sockaddr*)&info->address, &addrlen);
+	info->username = nvnc_client_get_auth_username(client->nvnc_client);
+	info->seat = client->seat ? client->seat->name : NULL;
+}
+
 static void client_info(const struct ctl_server_client* client_handle,
 		struct ctl_server_client_info* info)
 {
 	const struct nvnc_client *vnc_client =
 		(const struct nvnc_client*)client_handle;
 	const struct wayvnc_client *client = nvnc_get_userdata(vnc_client);
-
-	info->id = client->id;
-	info->hostname = nvnc_client_get_hostname(vnc_client);
-	info->username = nvnc_client_get_auth_username(vnc_client);
-	info->seat = client->seat ? client->seat->name : NULL;
+	compose_client_info(client, info);
 }
 
 static int get_output_list(struct ctl* ctl,
@@ -1279,13 +1286,8 @@ static void client_destroy(void* obj)
 			wayvnc->nr_clients);
 
 	if (wayvnc->ctl) {
-		struct ctl_server_client_info info = {
-			.id = self->id,
-			.hostname = nvnc_client_get_hostname(self->nvnc_client),
-			.username = nvnc_client_get_auth_username(
-					self->nvnc_client),
-			.seat = self->seat ? self->seat->name : NULL,
-		};
+		struct ctl_server_client_info info = {};
+		compose_client_info(self, &info);
 
 		ctl_server_event_disconnected(wayvnc->ctl, &info,
 				wayvnc->nr_clients);
@@ -1335,12 +1337,8 @@ static void on_nvnc_client_new(struct nvnc_client* client)
 	nvnc_log(NVNC_LOG_DEBUG, "Client connected, new client count: %d",
 			self->nr_clients);
 
-	struct ctl_server_client_info info = {
-		.id = wayvnc_client->id,
-		.hostname = nvnc_client_get_hostname(client),
-		.username = nvnc_client_get_auth_username(client),
-		.seat = wayvnc_client->seat ? wayvnc_client->seat->name : NULL,
-	};
+	struct ctl_server_client_info info = {};
+	compose_client_info(wayvnc_client, &info);
 
 	ctl_server_event_connected(self->ctl, &info, self->nr_clients);
 }

wayvnc.scd

@@ -269,8 +269,8 @@ Parameters:
 *connection_count=...*
 	The total number of connected VNC clients including this one.
 
-*hostname=...*
-	The hostname or IP of this client. May be null.
+*address=...*
+	The IP address of this client. May be null.
 
 *username=...*
 	The username used to authenticate this client. May be null.
@@ -288,8 +288,8 @@ Parameters:
 *connection_count=...*
 	The total number of connected VNC clients not including this one.
 
-*hostname=...*
-	The hostname or IP of this client. May be null.
+*address=...*
+	The IP address of this client. May be null.
 
 *username=...*
 	The username used to authenticate this client. May be null.

wayvncctl.scd

@@ -63,8 +63,8 @@ the end, for ease in scripting:
 
 ```
 $ wayvncctl --json event-receive
-{"method":"client-connected","params":{"id":"0x10ef670","hostname":null,"username":null,"connection_count":1}}
-{"method":"client-disconnected","params":{"id":"0x10ef670","hostname":null,"username":null,"connection_count":0}}
+{"method":"client-connected","params":{"id":"0x10ef670","address":null,"username":null,"connection_count":1}}
+{"method":"client-disconnected","params":{"id":"0x10ef670","address":null,"username":null,"connection_count":0}}
 ```
 
 The default human-readible output is a multi-line yaml-like format, with two
@@ -75,12 +75,12 @@ $ wayvncctl event-receive
 
 client-connected:
   id: 0x10ef670
-  hostname: 192.168.1.18
+  address: 192.168.1.18
   connection_count: 1
 
 client-disconnected:
   id: 0x10ef670
-  hostname: 192.168.1.18
+  address: 192.168.1.18
   connection_count: 0
 
 ```