shared/install: propagate errors about invalid aliases and such too

If an invalid arg appears in [Install] Alias=, WantedBy=, RequiredBy=,
we'd warn in the logs, but not propagate this information to the caller,
and in particular not over dbus. But if we call "systemctl enable" on a
unit, and the config if invalid, this information is quite important.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/shared/install.h b/src/shared/install.h
index cdc5435035..d21e2aaa45 100644
--- a/src/shared/install.h
+++ b/src/shared/install.h
@@ -193,7 +193,12 @@ int unit_file_changes_add(UnitFileChange **changes, size_t *n_changes, int type,
 void unit_file_changes_free(UnitFileChange *changes, size_t n_changes);
 void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, size_t n_changes, bool quiet);
 
-int unit_file_verify_alias(const UnitFileInstallInfo *i, const char *dst, char **ret_dst);
+int unit_file_verify_alias(
+                const UnitFileInstallInfo *info,
+                const char *dst,
+                char **ret_dst,
+                UnitFileChange **changes,
+                size_t *n_changes);
 
 typedef struct UnitFilePresetRule UnitFilePresetRule;