From a5cf1e220def07290260e4125e74f41ac75cf88d Mon Sep 17 00:00:00 2001
From: Darren Tucker <dtucker@zip.com.au>
Date: Fri, 17 Jan 2014 18:10:58 +1100
Subject:  - (dtucker) [configure.ac openbsd-compat/bsd-statvfs.c   
 openbsd-compat/bsd-statvfs.h] Implement enough of statvfs on top of statfs   
 to be useful (and for the regression tests to pass) on platforms that    have
 statfs and fstatfs.  ok djm@

---
 ChangeLog                    |  4 ++++
 configure.ac                 |  5 ++--
 openbsd-compat/bsd-statvfs.c | 55 ++++++++++++++++++++++++++++++++++++++++----
 openbsd-compat/bsd-statvfs.h |  9 +++++---
 4 files changed, 63 insertions(+), 10 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index d3a15e4d..70dad451 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -32,6 +32,10 @@
    openbsd-compat/openssl-compat.h]  Add compatibility layer for older
    openssl versions.  ok djm@
  - (dtucker) Fix typo in #ifndef.
+ - (dtucker) [configure.ac openbsd-compat/bsd-statvfs.c
+   openbsd-compat/bsd-statvfs.h] Implement enough of statvfs on top of statfs
+   to be useful (and for the regression tests to pass) on platforms that
+   have statfs and fstatfs.  ok djm@
 
 20140118
  - (djm) OpenBSD CVS Sync
diff --git a/configure.ac b/configure.ac
index 2ac3afa3..c97e12f3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.551 2014/01/17 06:32:30 dtucker Exp $
+# $Id: configure.ac,v 1.552 2014/01/17 07:10:58 dtucker Exp $
 #
 # Copyright (c) 1999-2004 Damien Miller
 #
@@ -15,7 +15,7 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 AC_INIT([OpenSSH], [Portable], [openssh-unix-dev@mindrot.org])
-AC_REVISION($Revision: 1.551 $)
+AC_REVISION($Revision: 1.552 $)
 AC_CONFIG_SRCDIR([ssh.c])
 AC_LANG([C])
 
@@ -1585,6 +1585,7 @@ AC_CHECK_FUNCS([ \
 	fchmod \
 	fchown \
 	freeaddrinfo \
+	fstatfs \
 	fstatvfs \
 	futimes \
 	getaddrinfo \
diff --git a/openbsd-compat/bsd-statvfs.c b/openbsd-compat/bsd-statvfs.c
index 844d5b46..2b1da80e 100644
--- a/openbsd-compat/bsd-statvfs.c
+++ b/openbsd-compat/bsd-statvfs.c
@@ -1,7 +1,7 @@
-/* $Id: bsd-statvfs.c,v 1.1 2008/06/08 17:32:29 dtucker Exp $ */
+/* $Id: bsd-statvfs.c,v 1.2 2014/01/17 07:10:59 dtucker Exp $ */
 
 /*
- * Copyright (c) 2008 Darren Tucker <dtucker@zip.com.au>
+ * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -18,20 +18,65 @@
 
 #include "includes.h"
 
+#if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS)
+
+#include <sys/param.h>
+#ifdef HAVE_SYS_MOUNT_H
+# include <sys/mount.h>
+#endif
+
 #include <errno.h>
 
-#ifndef HAVE_STATVFS
+static void
+copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from)
+{
+	to->f_bsize = from->f_bsize;
+	to->f_frsize = from->f_bsize;	/* no exact equivalent */
+	to->f_blocks = from->f_blocks;
+	to->f_bfree = from->f_bfree;
+	to->f_bavail = from->f_bavail;
+	to->f_files = from->f_files;
+	to->f_ffree = from->f_ffree;
+	to->f_favail = from->f_ffree;	/* no exact equivalent */
+	to->f_fsid = 0;			/* XXX fix me */
+	to->f_flag = from->f_flags;
+	to->f_namemax = MNAMELEN;
+}
+
+# ifndef HAVE_STATVFS
 int statvfs(const char *path, struct statvfs *buf)
 {
+#  ifdef HAVE_STATFS
+	struct statfs fs;
+
+	memset(&fs, 0, sizeof(fs));
+	if (statfs(path, &fs) == -1)
+		return -1;
+	copy_statfs_to_statvfs(buf, &fs);
+	return 0;
+#  else
 	errno = ENOSYS;
 	return -1;
+#  endif
 }
-#endif
+# endif
 
-#ifndef HAVE_FSTATVFS
+# ifndef HAVE_FSTATVFS
 int fstatvfs(int fd, struct statvfs *buf)
 {
+#  ifdef HAVE_FSTATFS
+	struct statfs fs;
+
+	memset(&fs, 0, sizeof(fs));
+	if (fstatfs(fd, &fs) == -1)
+		return -1;
+	copy_statfs_to_statvfs(buf, &fs);
+	return 0;
+#  else
 	errno = ENOSYS;
 	return -1;
+#  endif
 }
+# endif
+
 #endif
diff --git a/openbsd-compat/bsd-statvfs.h b/openbsd-compat/bsd-statvfs.h
index da215ffc..057407cc 100644
--- a/openbsd-compat/bsd-statvfs.h
+++ b/openbsd-compat/bsd-statvfs.h
@@ -1,7 +1,7 @@
-/* $Id: bsd-statvfs.h,v 1.1 2008/06/08 17:32:29 dtucker Exp $ */
+/* $Id: bsd-statvfs.h,v 1.2 2014/01/17 07:10:59 dtucker Exp $ */
 
 /*
- * Copyright (c) 2008 Darren Tucker <dtucker@zip.com.au>
+ * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -20,11 +20,14 @@
 
 #include <sys/types.h>
 
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
 #ifdef HAVE_SYS_STATFS_H
 #include <sys/statfs.h>
 #endif
 
-#ifndef HAVE_STATVFS
+#if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS)
 
 #ifndef HAVE_FSBLKCNT_T
 typedef unsigned long fsblkcnt_t;
-- 
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