Handle malloc failure in ipc_recv_response

common/ipc-client.c

@@ -52,10 +52,18 @@ struct ipc_response *ipc_recv_response(int socketfd) {
 	}
 
 	struct ipc_response *response = malloc(sizeof(struct ipc_response));
+	if (!response) {
+		goto error_1;
+	}
+
 	total = 0;
 	response->size = data32[0];
 	response->type = data32[1];
 	char *payload = malloc(response->size + 1);
+	if (!payload) {
+		goto error_2;
+	}
+
 	while (total < response->size) {
 		ssize_t received = recv(socketfd, payload + total, response->size - total, 0);
 		if (received < 0) {
@@ -67,6 +75,11 @@ struct ipc_response *ipc_recv_response(int socketfd) {
 	response->payload = payload;
 
 	return response;
+error_2:
+	free(response);
+error_1:
+	sway_log(L_ERROR, "Unable to allocate memory for IPC response");
+	return NULL;
 }
 
 void free_ipc_response(struct ipc_response *response) {

common/log.c

@@ -88,9 +88,14 @@ void _sway_log(const char *filename, int line, log_importance_t verbosity, const
 		}
 
 		if (filename && line) {
-			char *file = strdup(filename);
+			const char *file = filename + strlen(filename);
-			fprintf(stderr, "[%s:%d] ", basename(file), line);
+			while (file != filename && *file != '/') {
-			free(file);
+				--file;
+			}
+			if (*file == '/') {
+				++file;
+			}
+			fprintf(stderr, "[%s:%d] ", file, line);
 		}
 
 		va_list args;

swaybar/ipc.c

@@ -331,6 +331,9 @@ void ipc_bar_init(struct bar *bar, const char *bar_id) {
 
 bool handle_ipc_event(struct bar *bar) {
 	struct ipc_response *resp = ipc_recv_response(bar->ipc_event_socketfd);
+	if (!resp) {
+		return false;
+	}
 	switch (resp->type) {
 	case IPC_EVENT_WORKSPACE:
 		ipc_update_workspaces(bar);