1 files changed, 3 insertions, 8 deletions

diff --git a/swaybar/tray/host.c b/swaybar/tray/host.c
index ddf2416d..79b54606 100644
--- a/swaybar/tray/host.c
+++ b/swaybar/tray/host.c
@@ -1,4 +1,3 @@
-#define _POSIX_C_SOURCE 200809L
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -10,6 +9,7 @@
 #include "swaybar/tray/tray.h"
 #include "list.h"
 #include "log.h"
+#include "stringop.h"
 
 static const char *watcher_path = "/StatusNotifierWatcher";
 
@@ -138,12 +138,10 @@ static int handle_new_watcher(sd_bus_message *msg,
 
 bool init_host(struct swaybar_host *host, char *protocol,
                 struct swaybar_tray *tray) {
-        size_t len = snprintf(NULL, 0, "org.%s.StatusNotifierWatcher", protocol) + 1;
-        host->watcher_interface = malloc(len);
+        host->watcher_interface = format_str("org.%s.StatusNotifierWatcher", protocol);
         if (!host->watcher_interface) {
                 return false;
         }
-        snprintf(host->watcher_interface, len, "org.%s.StatusNotifierWatcher", protocol);
 
         sd_bus_slot *reg_slot = NULL, *unreg_slot = NULL, *watcher_slot = NULL;
         int ret = sd_bus_match_signal(tray->bus, &reg_slot, host->watcher_interface,
@@ -173,13 +171,10 @@ bool init_host(struct swaybar_host *host, char *protocol,
         }
 
         pid_t pid = getpid();
-        size_t service_len = snprintf(NULL, 0, "org.%s.StatusNotifierHost-%d",
-                        protocol, pid) + 1;
-        host->service = malloc(service_len);
+        host->service = format_str("org.%s.StatusNotifierHost-%d", protocol, pid);
         if (!host->service) {
                 goto error;
         }
-        snprintf(host->service, service_len, "org.%s.StatusNotifierHost-%d", protocol, pid);
         ret = sd_bus_request_name(tray->bus, host->service, 0);
         if (ret < 0) {
                 sway_log(SWAY_DEBUG, "Failed to acquire service name: %s", strerror(-ret));