Move to kernel style SPDX license identifiers

[lttng-ust.git] / liblttng-ust / compat.h

diff --git a/liblttng-ust/compat.h b/liblttng-ust/compat.h
index a941b9a1ed407a945ecef8d624ed2b98f9f5387a..200d9771f85462b91ceabb7b5404254787e25fb9 100644 (file)
--- a/liblttng-ust/compat.h
+++ b/liblttng-ust/compat.h
@@ -1,26 +1,14 @@
-#ifndef _UST_COMPAT_H
-#define _UST_COMPAT_H
-
 /*
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  * Copyright (C) 2016 Raphaël Beamonte <raphael.beamonte@gmail.com>
  * Copyright (C) 2020 Michael Jeanson <mjeanson@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#ifndef _UST_COMPAT_H
+#define _UST_COMPAT_H
+
 #include <pthread.h>
 #include <errno.h>
 #include <string.h>
@@ -34,6 +22,14 @@
 static inline
 int lttng_pthread_setname_np(const char *name)
 {
+       /*
+        * Some implementations don't error out, replicate this behavior for
+        * consistency.
+        */
+       if (strnlen(name, LTTNG_UST_ABI_PROCNAME_LEN) >= LTTNG_UST_ABI_PROCNAME_LEN) {
+               return ERANGE;
+       }
+
        return pthread_setname_np(pthread_self(), name);
 }