From 4717ea4a97af59fca6a88a84e10add5d9539a473 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Fri, 9 Feb 2007 17:35:15 +0100
Subject: [PATCH] clean up realpath.[ch] includes and macros

Signed-off-by: Karel Zak <kzak@redhat.com>
---
 mount/realpath.c | 11 ++++-------
 mount/realpath.h | 10 ++++++++++
 mount/swapon.c   |  5 -----
 3 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/mount/realpath.c b/mount/realpath.c
index 373dbe82..9dc517e4 100644
--- a/mount/realpath.c
+++ b/mount/realpath.c
@@ -19,18 +19,15 @@
  * This routine is part of libc.  We include it nevertheless,
  * since the libc version has some security flaws.
  */
-
-#include <limits.h>		/* for PATH_MAX */
-#ifndef PATH_MAX
-#define PATH_MAX 8192
-#endif
 #include <unistd.h>
 #include <string.h>
 #include <errno.h>
 #include "realpath.h"
 #include "sundries.h"		/* for xstrdup */
 
-#define MAX_READLINKS 32
+#ifndef MAXSYMLINKS
+# define MAXSYMLINKS 256
+#endif
 
 char *
 myrealpath(const char *path, char *resolved_path, int maxreslth) {
@@ -85,7 +82,7 @@ myrealpath(const char *path, char *resolved_path, int maxreslth) {
 		}
 
 		/* Protect against infinite loops. */
-		if (readlinks++ > MAX_READLINKS) {
+		if (readlinks++ > MAXSYMLINKS) {
 			errno = ELOOP;
 			goto err;
 		}
diff --git a/mount/realpath.h b/mount/realpath.h
index 206e53c1..016fc484 100644
--- a/mount/realpath.h
+++ b/mount/realpath.h
@@ -1 +1,11 @@
+#ifndef REALPATH_H
+#define REALPATH_H
+
+#include <limits.h>
+#ifndef PATH_MAX
+# define PATH_MAX 4096
+#endif
+
 extern char *myrealpath(const char *path, char *resolved_path, int m);
+
+#endif /* REALPATH_H */
diff --git a/mount/swapon.c b/mount/swapon.c
index ef8dcee9..b6bcd750 100644
--- a/mount/swapon.c
+++ b/mount/swapon.c
@@ -19,11 +19,6 @@
 #include "mount_by_label.h"
 #include "realpath.h"
 
-#include <limits.h>             /* for PATH_MAX */
-#ifndef PATH_MAX
-#define PATH_MAX 8192
-#endif
-
 #define streq(s, t)	(strcmp ((s), (t)) == 0)
 
 #define	_PATH_FSTAB     "/etc/fstab"
-- 
2.39.5