libsystemd-bus: sd_bus_request_name: fix return value for kdbus

kdbus returns -EALREADY if the requesting connection is already the
owner of a name, and -EEXIST if the name already exists and the
connection is not able to take it over.

Also, n->flags needs a translation as well to match the SD_BUS_* enum
values.

1 files changed, 12 insertions, 2 deletions

diff --git a/src/libsystemd-bus/bus-control.c b/src/libsystemd-bus/bus-control.c
index eeeb77b591..b222175148 100644
--- a/src/libsystemd-bus/bus-control.c
+++ b/src/libsystemd-bus/bus-control.c
@@ -84,10 +84,20 @@ _public_ int sd_bus_request_name(sd_bus *bus, const char *name, int flags) {
 #endif
 
                 r = ioctl(bus->input_fd, KDBUS_CMD_NAME_ACQUIRE, n);
-                if (r < 0)
+                if (r < 0) {
+                        if (errno == -EALREADY)
+                                return SD_BUS_NAME_ALREADY_OWNER;
+
+                        if (errno == -EEXIST)
+                                return SD_BUS_NAME_EXISTS;
+
                         return -errno;
+                }
 
-                return n->flags;
+                if (n->flags & KDBUS_NAME_IN_QUEUE)
+                        return SD_BUS_NAME_IN_QUEUE;
+
+                return SD_BUS_NAME_PRIMARY_OWNER;
         } else {
                 r = sd_bus_call_method(
                                 bus,