+#define filename_escape(s) xescape((s), "./")
+
+static int make_coredump_path(sd_journal *j, char **ret) {
+ _cleanup_free_ char
+ *pid = NULL, *boot_id = NULL, *tstamp = NULL, *comm = NULL,
+ *p = NULL, *b = NULL, *t = NULL, *c = NULL;
+ const void *d;
+ size_t l;
+ char *fn;
+
+ assert(j);
+ assert(ret);
+
+ SD_JOURNAL_FOREACH_DATA(j, d, l) {
+ retrieve(d, l, "COREDUMP_COMM", &comm);
+ retrieve(d, l, "COREDUMP_PID", &pid);
+ retrieve(d, l, "COREDUMP_TIMESTAMP", &tstamp);
+ retrieve(d, l, "_BOOT_ID", &boot_id);
+ }
+
+ if (!pid || !comm || !tstamp || !boot_id) {
+ log_error("Failed to retrieve necessary fields to find coredump on disk.");
+ return -ENOENT;
+ }
+
+ p = filename_escape(pid);
+ if (!p)
+ return log_oom();
+
+ t = filename_escape(tstamp);
+ if (!t)
+ return log_oom();
+
+ c = filename_escape(comm);
+ if (!t)
+ return log_oom();
+
+ b = filename_escape(boot_id);
+ if (!b)
+ return log_oom();
+
+ fn = strjoin("/var/lib/systemd/coredump/core.", c, ".", b, ".", p, ".", t, NULL);
+ if (!fn)
+ return log_oom();
+
+ *ret = fn;
+ return 0;
+}
+