[LTP] [PATCH 6/8] lapi: add safe *xattrat macros

[Andrea Cervesato]

From: Andrea Cervesato <andrea.cervesato@suse.com>

Introduce the following new safe macros:

- SAFE_SETXATTRAT
- SAFE_GETXATTRAT
- SAFE_REMOVEXATTRAT

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
 include/lapi/xattr.h | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)

diff --git a/include/lapi/xattr.h b/include/lapi/xattr.h
index b30b24ac0dce04ee225a7609e92fb7af8b545283..8bf8a5de2c25e9ed8727b78ec0488779f4b65403 100644
--- a/include/lapi/xattr.h
+++ b/include/lapi/xattr.h
@@ -7,6 +7,8 @@
 #define LAPI_XATTR_H__
 
 #include <stdint.h>
+#include <stddef.h>
+#include "lapi/syscalls.h"
 
 #ifndef STRUCT_XATTR_ARGS
 struct xattr_args {
@@ -16,4 +18,100 @@ struct xattr_args {
 };
 #endif
 
+int safe_setxattrat(const char *file, const int lineno,
+		int dfd, const char *path, int at_flags,
+		const char *key, struct xattr_args *args, size_t size)
+{
+	int rval;
+
+	rval = tst_syscall(__NR_setxattrat,
+		    dfd, path, at_flags, key, args, size);
+
+	if (rval == -1) {
+		if (errno == ENOTSUP) {
+			tst_brk_(file, lineno, TCONF,
+				"no xattr support in fs, mounted without user_xattr option "
+				"or invalid namespace/name format");
+			return rval;
+		}
+
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"setxattrat(%d, %s, %d, %s, %p, %zu) failed",
+			dfd, path, at_flags, key, args, size);
+	} else if (rval) {
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"Invalid setxattrat(%d, %s, %d, %s, %p, %zu) return value %d",
+			dfd, path, at_flags, key, args, size, rval);
+	}
+
+	return rval;
+}
+
+#define SAFE_SETXATTRAT(dfd, path, at_flags, key, args, size) \
+	safe_setxattrat(__FILE__, __LINE__, \
+		 (dfd), (path), (at_flags), (key), (args), (size))
+
+int safe_getxattrat(const char *file, const int lineno,
+		int dfd, const char *path, int at_flags,
+		const char *key, struct xattr_args *args, size_t size)
+{
+	int rval;
+
+	rval = tst_syscall(__NR_getxattrat,
+		    dfd, path, at_flags, key, args, size);
+
+	if (rval == -1) {
+		if (errno == ENOTSUP) {
+			tst_brk_(file, lineno, TCONF,
+				"no xattr support in fs, mounted without user_xattr option "
+				"or invalid namespace/name format");
+			return rval;
+		}
+
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"getxattrat(%d, %s, %d, %s, %p, %zu) failed",
+			dfd, path, at_flags, key, args, size);
+	} else if (rval < 0) {
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"Invalid getxattrat(%d, %s, %d, %s, %p, %zu) return value %d",
+			dfd, path, at_flags, key, args, size, rval);
+	}
+
+	return rval;
+}
+
+#define SAFE_GETXATTRAT(dfd, path, at_flags, key, args, size) \
+	safe_getxattrat(__FILE__, __LINE__, \
+		 (dfd), (path), (at_flags), (key), (args), (size))
+
+int safe_removexattrat(const char *file, const int lineno,
+		int dfd, const char *path, int at_flags, const char *name)
+{
+	int rval;
+
+	rval = tst_syscall(__NR_removexattrat, dfd, path, at_flags, name);
+
+	if (rval == -1) {
+		if (errno == ENOTSUP) {
+			tst_brk_(file, lineno, TCONF,
+				"no xattr support in fs or mounted without user_xattr option");
+			return rval;
+		}
+
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"removexattrat(%d, %s, %d, %s) failed",
+			dfd, path, at_flags, name);
+	} else if (rval) {
+		tst_brk_(file, lineno, TBROK | TERRNO,
+			"Invalid removexattrat(%d, %s, %d, %s) return value %d",
+			dfd, path, at_flags, name, rval);
+	}
+
+	return rval;
+}
+
+#define SAFE_REMOVEXATTRAT(dfd, path, at_flags, name) \
+	safe_removexattrat(__FILE__, __LINE__, \
+		 (dfd), (path), (at_flags), (name))
+
 #endif /* LAPI_XATTR_H__ */

-- 
2.43.0