[LTP] [PATCH v2 1/3] Add SAFE_ACCESS macro

[Dai Shili <daisl.fnst@fujitsu.com>]

Signed-off-by: Dai Shili <daisl.fnst@fujitsu.com>
---
 include/tst_safe_macros.h |  5 +++++
 lib/tst_safe_macros.c     | 19 +++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/include/tst_safe_macros.h b/include/tst_safe_macros.h
index 9a543e4..81c4b08 100644
--- a/include/tst_safe_macros.h
+++ b/include/tst_safe_macros.h
@@ -24,6 +24,11 @@
 #include "safe_macros_fn.h"
 #include "tst_cmd.h"
 
+int safe_access(const char *filename, const int lineno, const char *pathname,
+		   int mode);
+#define SAFE_ACCESS(path, mode) \
+	safe_access(__FILE__, __LINE__, (path), (mode))
+
 #define SAFE_BASENAME(path) \
 	safe_basename(__FILE__, __LINE__, NULL, (path))
 
diff --git a/lib/tst_safe_macros.c b/lib/tst_safe_macros.c
index a9f6aeb..24aad0d 100644
--- a/lib/tst_safe_macros.c
+++ b/lib/tst_safe_macros.c
@@ -20,6 +20,25 @@
 #include "lapi/personality.h"
 #include "lapi/pidfd.h"
 
+int safe_access(const char *file, const int lineno,
+           const char *pathname, int mode)
+{
+        int rval;
+
+        rval = access(pathname, mode);
+
+        if (rval == -1) {
+                tst_brk_(file, lineno, TBROK | TERRNO,
+                        "access(%s,%d) failed", pathname, mode);
+        } else if (rval) {
+                tst_brk_(file, lineno, TBROK | TERRNO,
+                        "Invalid access(%s,%d) return value %d", pathname,
+                        mode, rval);
+        }
+
+        return rval;
+}
+
 int safe_setpgid(const char *file, const int lineno, pid_t pid, pid_t pgid)
 {
 	int rval;
-- 
1.8.3.1


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