dbus: the changes array might actually be NULL when ti is empty

[elogind.git] / src / pam-module.c

diff --git a/src/pam-module.c b/src/pam-module.c
index a3ce2468d57ed6e1861121988b59b2c0e4d26f03..dd05f93d426ade6ddeea76a5b0d0cc5b3868fca4 100644 (file)
--- a/src/pam-module.c
+++ b/src/pam-module.c
@@ -445,8 +445,8 @@ _public_ PAM_EXTERN int pam_sm_open_session(
         pam_get_item(handle, PAM_TTY, (const void**) &tty);
         pam_get_item(handle, PAM_RUSER, (const void**) &remote_user);
         pam_get_item(handle, PAM_RHOST, (const void**) &remote_host);
-        seat = pam_getenv(handle, "LOGIN_SEAT");
-        cvtnr = pam_getenv(handle, "LOGIN_VTNR");
+        seat = pam_getenv(handle, "XDG_SEAT");
+        cvtnr = pam_getenv(handle, "XDG_VTNR");
 
         service = strempty(service);
         tty = strempty(tty);
@@ -529,6 +529,8 @@ _public_ PAM_EXTERN int pam_sm_open_session(
                                    DBUS_TYPE_OBJECT_PATH, &object_path,
                                    DBUS_TYPE_STRING, &runtime_path,
                                    DBUS_TYPE_UNIX_FD, &session_fd,
+                                   DBUS_TYPE_STRING, &seat,
+                                   DBUS_TYPE_UINT32, &vtnr,
                                    DBUS_TYPE_INVALID)) {
                 pam_syslog(handle, LOG_ERR, "Failed to parse message: %s", bus_error_message(&error));
                 r = PAM_SESSION_ERR;
@@ -547,6 +549,26 @@ _public_ PAM_EXTERN int pam_sm_open_session(
                 goto finish;
         }
 
+        if (!isempty(seat)) {
+                r = pam_misc_setenv(handle, "XDG_SEAT", seat, 0);
+                if (r != PAM_SUCCESS) {
+                        pam_syslog(handle, LOG_ERR, "Failed to set seat.");
+                        goto finish;
+                }
+        }
+
+        if (vtnr > 0) {
+                char buf[11];
+                snprintf(buf, sizeof(buf), "%u", vtnr);
+                char_array_0(buf);
+
+                r = pam_misc_setenv(handle, "XDG_VTNR", buf, 0);
+                if (r != PAM_SUCCESS) {
+                        pam_syslog(handle, LOG_ERR, "Failed to set virtual terminal number.");
+                        goto finish;
+                }
+        }
+
         if (session_fd >= 0) {
                 r = pam_set_data(handle, "systemd.session-fd", INT_TO_PTR(session_fd+1), NULL);
                 if (r != PAM_SUCCESS) {