3 files changed, 28 insertions, 1 deletions
diff --git a/src/libsystemd/libsystemd.sym.m4 b/src/libsystemd/libsystemd.sym.m4
index d1450fbb26..87da7ac021 100644
--- a/src/libsystemd/libsystemd.sym.m4
+++ b/src/libsystemd/libsystemd.sym.m4
@@ -153,6 +153,11 @@ global:
         sd_machine_get_ifindices;
 } LIBSYSTEMD_214;
 
+LIBSYSTEMD_217 {
+global:
+        sd_session_get_desktop;
+} LIBSYSTEMD_216;
+
 m4_ifdef(`ENABLE_KDBUS',
 LIBSYSTEMD_FUTURE {
 global:
@@ -438,5 +443,5 @@ global:
         /* sd-path */
         sd_path_home;
         sd_path_search;
-} LIBSYSTEMD_216;
+} LIBSYSTEMD_217;
 )
diff --git a/src/libsystemd/sd-login/sd-login.c b/src/libsystemd/sd-login/sd-login.c
index 95cb6ff581..c72d23ed53 100644
--- a/src/libsystemd/sd-login/sd-login.c
+++ b/src/libsystemd/sd-login/sd-login.c
@@ -485,6 +485,25 @@ _public_ int sd_session_get_class(const char *session, char **class) {
         return session_get_string(session, "CLASS", class);
 }
 
+_public_ int sd_session_get_desktop(const char *session, char **desktop) {
+        _cleanup_free_ char *escaped = NULL;
+        char *t;
+        int r;
+
+        assert_return(desktop, -EINVAL);
+
+        r = session_get_string(session, "DESKTOP", &escaped);
+        if (r < 0)
+                return r;
+
+        t = cunescape(escaped);
+        if (!t)
+                return -ENOMEM;
+
+        *desktop = t;
+        return 0;
+}
+
 _public_ int sd_session_get_display(const char *session, char **display) {
         return session_get_string(session, "DISPLAY", display);
 }
diff --git a/src/systemd/sd-login.h b/src/systemd/sd-login.h
index 1eb3be30b5..93af19709b 100644
--- a/src/systemd/sd-login.h
+++ b/src/systemd/sd-login.h
@@ -147,6 +147,9 @@ int sd_session_get_type(const char *session, char **type);
 /* Determine the class of this session, i.e. one of "user", "greeter" or "lock-screen". */
 int sd_session_get_class(const char *session, char **clazz);
 
+/* Determine the desktop brand of this session, i.e. something like "GNOME", "KDE" or "SYSTEMD-CONSOLE". */
+int sd_session_get_desktop(const char *session, char **desktop);
+
 /* Determine the X11 display of this session. */
 int sd_session_get_display(const char *session, char **display);