backlight: add minimal tool to save/restore screen brightness across reboots

[elogind.git] / src / core / selinux-access.c

diff --git a/src/core/selinux-access.c b/src/core/selinux-access.c
index be728d5d5bbbf8c979da5cdef2654dcaceb5b3a8..426aed07d263171def62b05ae811ecc3b08be4de 100644 (file)
--- a/src/core/selinux-access.c
+++ b/src/core/selinux-access.c
@@ -174,20 +174,25 @@ static int audit_callback(
    user_avc's into the /var/log/audit/audit.log, otherwise they will be
    sent to syslog.
 */
-static int log_callback(int type, const char *fmt, ...) {
+_printf_attr_(2, 3) static int log_callback(int type, const char *fmt, ...) {
         va_list ap;
 
         va_start(ap, fmt);
 
 #ifdef HAVE_AUDIT
         if (get_audit_fd() >= 0) {
-                char buf[LINE_MAX];
+                _cleanup_free_ char *buf = NULL;
+                int r;
 
-                vsnprintf(buf, sizeof(buf), fmt, ap);
-                audit_log_user_avc_message(get_audit_fd(), AUDIT_USER_AVC, buf, NULL, NULL, NULL, 0);
+                r = vasprintf(&buf, fmt, ap);
                 va_end(ap);
 
-                return 0;
+                if (r >= 0) {
+                        audit_log_user_avc_message(get_audit_fd(), AUDIT_USER_AVC, buf, NULL, NULL, NULL, 0);
+                        return 0;
+                }
+
+                va_start(ap, fmt);
         }
 #endif
         log_metav(LOG_USER | LOG_INFO, __FILE__, __LINE__, __FUNCTION__, fmt, ap);
@@ -256,7 +261,7 @@ static int get_audit_data(
         const char *sender;
         int r, fd;
         struct ucred ucred;
-        socklen_t len;
+        socklen_t len = sizeof(ucred);
 
         sender = dbus_message_get_sender(message);
         if (sender)