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-rw-r--r--src/systemd/sd-id128.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/systemd/sd-id128.h b/src/systemd/sd-id128.h
index 48fd87671b..9f445278bb 100644
--- a/src/systemd/sd-id128.h
+++ b/src/systemd/sd-id128.h
@@ -106,6 +106,10 @@ _sd_pure_ static inline int sd_id128_equal(sd_id128_t a, sd_id128_t b) {
return memcmp(&a, &b, 16) == 0;
}
+_sd_pure_ static inline int sd_id128_is_null(sd_id128_t a) {
+ return a.qwords[0] == 0 && a.qwords[1] == 0;
+}
+
#define SD_ID128_NULL ((const sd_id128_t) { .qwords = { 0, 0 }})
_SD_END_DECLARATIONS;