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-rw-r--r--src/shared/unit-name.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/shared/unit-name.c b/src/shared/unit-name.c
index 7733aae0e7..1baa6eb7e5 100644
--- a/src/shared/unit-name.c
+++ b/src/shared/unit-name.c
@@ -565,3 +565,30 @@ UnitType unit_name_to_type(const char *n) {
return unit_type_from_string(e + 1);
}
+
+int build_subslice(const char *slice, const char*name, char **subslice) {
+ char *ret;
+
+ assert(slice);
+ assert(name);
+ assert(subslice);
+
+ if (streq(slice, "-.slice"))
+ ret = strappend(name, ".slice");
+ else {
+ char *e;
+
+ e = endswith(slice, ".slice");
+ if (!e)
+ return -EINVAL;
+
+ ret = new(char, (e - slice) + 1 + strlen(name) + 6 + 1);
+ if (!ret)
+ return -ENOMEM;
+
+ stpcpy(stpcpy(stpcpy(mempcpy(ret, slice, e - slice), "-"), name), ".slice");
+ }
+
+ *subslice = ret;
+ return 0;
+}