X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fust-error.h;h=49045babc5402bd1851fc340a27ce7ad12a6e9d7;hb=2137460a3901f8abdae909cf72e43e6ac23507ec;hp=05cc3bee65e2dd61a87c3907bda010e444c85680;hpb=32ce85691c17b331072b1c0df96f69e8b388d134;p=lttng-ust.git

diff --git a/include/lttng/ust-error.h b/include/lttng/ust-error.h
index 05cc3bee..49045bab 100644
--- a/include/lttng/ust-error.h
+++ b/include/lttng/ust-error.h
@@ -1,35 +1,21 @@
-#ifndef _LTTNG_UST_ERROR_H
-#define _LTTNG_UST_ERROR_H
-
 /*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *                      Julien Desfossez <julien.desfossez@polymtl.ca>
- *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * 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
+ * Copyright (C) 2011 EfficiOS Inc.
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
 
-/*
- * This header is meant for liblttng and libust internal use ONLY.
- * These declarations should NOT be considered stable API.
- */
+#ifndef _LTTNG_UST_ERROR_H
+#define _LTTNG_UST_ERROR_H
 
 #include <limits.h>
 #include <unistd.h>
 #include <lttng/ust-abi.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * ustcomm error code.
  */
@@ -46,15 +32,24 @@ enum lttng_ust_error_code {
 	LTTNG_UST_ERR_INVAL_MAGIC = 1031,	/* Invalid magic number */
 	LTTNG_UST_ERR_INVAL_SOCKET_TYPE = 1032,	/* Invalid socket type */
 	LTTNG_UST_ERR_UNSUP_MAJOR = 1033,	/* Unsupported major version */
+	LTTNG_UST_ERR_PEERCRED = 1034,		/* Cannot get unix socket peer credentials */
+	LTTNG_UST_ERR_PEERCRED_PID = 1035,	/* Peer credentials PID is invalid. Socket appears to belong to a distinct, non-nested pid namespace. */
 
 	/* MUST be last element */
 	LTTNG_UST_ERR_NR,			/* Last element */
 };
 
 /*
- * Return a human-readable error message for an lttng-ust error code.
- * code must be a positive value (or 0).
+ * lttng_ust_strerror
+ * @code: must be a negative value of enum lttng_ust_error_code (or 0).
+ *
+ * Returns a ptr to a string representing a human readable error code from the
+ * ustcomm_return_code enum.
  */
-extern const char *lttng_ust_strerror(int code);
+const char *lttng_ust_strerror(int code);
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif	/* _LTTNG_UST_ERROR_H */