[PATCH 7/7] libbb.h: Handle missing HOST_NAME_MAX; ensure MAXFOOLEN agrees with FOO_MAX

[James Clarke <jrtc27@jrtc27.com>]

Signed-off-by: James Clarke <jrtc27@jrtc27.com>
---
 include/libbb.h | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/include/libbb.h b/include/libbb.h
index daccf154a..56f4f4cb3 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -181,7 +181,24 @@ extern char **environ;
 /* klogctl is in libc's klog.h, but we cheat and not #include that */
 int klogctl(int type, char *b, int len);
 #ifndef PATH_MAX
-# define PATH_MAX 256
+# ifdef MAXPATHLEN
+#  define PATH_MAX MAXPATHLEN
+# else
+#  define PATH_MAX 256
+# endif
+#endif
+#ifndef MAXPATHLEN
+# define MAXPATHLEN PATH_MAX
+#endif
+#ifndef HOST_NAME_MAX
+# ifdef MAXHOSTNAMELEN
+#  define HOST_NAME_MAX MAXHOSTNAMELEN
+# else
+#  define HOST_NAME_MAX 256
+# endif
+#endif
+#ifndef MAXHOSTNAMELEN
+# define MAXHOSTNAMELEN HOST_NAME_MAX
 #endif
 #ifndef BUFSIZ
 # define BUFSIZ 4096
-- 
2.14.1