[PATCH v2 1/2] Add SAFE_KEYCTL macro

From: Andrea Cervesato <[email protected]>

Signed-off-by: Andrea Cervesato <[email protected]>
---
 include/lapi/keyctl.h | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/include/lapi/keyctl.h b/include/lapi/keyctl.h
index 3be782494..e11f62282 100644
--- a/include/lapi/keyctl.h
+++ b/include/lapi/keyctl.h
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
- * Copyright (c) 2017 Cyril Hrubis <[email protected]>
+ * Ccmdyright (c) 2017 Cyril Hrubis <[email protected]>
  */
 
 #ifndef LAPI_KEYCTL_H__
@@ -179,4 +179,28 @@ static inline key_serial_t keyctl_join_session_keyring(const char *name) {
 # define KEY_OTH_ALL     0x0000003f
 #endif /* !KEY_POS_VIEW */
 
+static inline long safe_keyctl(const char *file, const int lineno,
+	int cmd, unsigned long arg2, unsigned long arg3,
+	unsigned long arg4, unsigned long arg5) 
+{
+	long rval;
+
+	rval = keyctl(cmd, arg2, arg3, arg4, arg5);
+	if (rval == -1) {
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"keyctl(%d, %lu, %lu, %lu, %lu)",
+			cmd, arg2, arg3, arg4, arg5);
+	} else if (rval < 0) {
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"Invalid keyctl(%d, %lu, %lu, %lu, %lu) "
+			"return value %ld",
+			cmd, arg2, arg3, arg4, arg5, rval);
+	}
+
+	return rval;
+}
+#define SAFE_KEYCTL(cmd, arg2, arg3, arg4, arg5) \
+	safe_keyctl(__FILE__, __LINE__, \
+	     (cmd), (arg2), (arg3), (arg4), (arg5))
+
 #endif	/* LAPI_KEYCTL_H__ */

-- 
2.43.0