prevent ub caused by misaligned stores/loads

1 files changed, 4 insertions, 4 deletions

diff --git a/sway/ipc-server.c b/sway/ipc-server.c
index ed710be5..fb5be27b 100644
--- a/sway/ipc-server.c
+++ b/sway/ipc-server.c
@@ -253,8 +253,8 @@ int ipc_client_handle_readable(int client_fd, uint32_t mask, void *data) {
                 return 0;
         }
 
-        client->payload_length = buf32[0];
-        client->current_command = (enum ipc_command_type)buf32[1];
+        memcpy(&client->payload_length, &buf32[0], sizeof(buf32[0]));
+        memcpy(&client->current_command, &buf32[1], sizeof(buf32[1]));
 
         if (read_available - received >= (long)client->payload_length) {
                 ipc_client_handle_command(client);
@@ -832,8 +832,8 @@ bool ipc_send_reply(struct ipc_client *client, const char *payload, uint32_t pay
         uint32_t *data32 = (uint32_t*)(data + sizeof(ipc_magic));
 
         memcpy(data, ipc_magic, sizeof(ipc_magic));
-        data32[0] = payload_length;
-        data32[1] = client->current_command;
+        memcpy(&data32[0], &payload_length, sizeof(payload_length));
+        memcpy(&data32[1], &client->current_command, sizeof(client->current_command));
 
         while (client->write_buffer_len + ipc_header_size + payload_length >=
                                  client->write_buffer_size) {