From dd174820dcbb31d57ce35c201b70381479724694 Mon Sep 17 00:00:00 2001
From: Wouter Wijngaards <wouter@nlnetlabs.nl>
Date: Tue, 27 Oct 2015 15:35:08 +0000
Subject: [PATCH] windows portability.

git-svn-id: file:///svn/unbound/trunk@3521 be551aaa-1e26-0410-a405-d3ace91eadb9
---
 config.h.in               | 3 +++
 configure                 | 2 +-
 configure.ac              | 2 +-
 smallapp/unbound-anchor.c | 8 ++++++++
 validator/autotrust.c     | 4 ++++
 5 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/config.h.in b/config.h.in
index 32a9d88c6..1e44741a3 100644
--- a/config.h.in
+++ b/config.h.in
@@ -155,6 +155,9 @@
 /* Define to 1 if fseeko (and presumably ftello) exists and is declared. */
 #undef HAVE_FSEEKO
 
+/* Define to 1 if you have the `fsync' function. */
+#undef HAVE_FSYNC
+
 /* Whether getaddrinfo is available */
 #undef HAVE_GETADDRINFO
 
diff --git a/configure b/configure
index bc09113f1..a08112699 100755
--- a/configure
+++ b/configure
@@ -18116,7 +18116,7 @@ if test "$ac_res" != no; then :
 
 fi
 
-for ac_func in tzset sigprocmask fcntl getpwnam getrlimit setrlimit setsid sbrk chroot kill chown sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent
+for ac_func in tzset sigprocmask fcntl getpwnam getrlimit setrlimit setsid sbrk chroot kill chown sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent fsync
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
diff --git a/configure.ac b/configure.ac
index aa7a9f20b..dd7bd2a57 100644
--- a/configure.ac
+++ b/configure.ac
@@ -990,7 +990,7 @@ AC_INCLUDES_DEFAULT
 #endif
 ])
 AC_SEARCH_LIBS([setusercontext], [util])
-AC_CHECK_FUNCS([tzset sigprocmask fcntl getpwnam getrlimit setrlimit setsid sbrk chroot kill chown sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent])
+AC_CHECK_FUNCS([tzset sigprocmask fcntl getpwnam getrlimit setrlimit setsid sbrk chroot kill chown sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent fsync])
 AC_CHECK_FUNCS([setresuid],,[AC_CHECK_FUNCS([setreuid])])
 AC_CHECK_FUNCS([setresgid],,[AC_CHECK_FUNCS([setregid])])
 
diff --git a/smallapp/unbound-anchor.c b/smallapp/unbound-anchor.c
index 612f0368f..884cb0185 100644
--- a/smallapp/unbound-anchor.c
+++ b/smallapp/unbound-anchor.c
@@ -1833,7 +1833,11 @@ write_unsigned_root(const char* root_anchor_file)
 		if(verb && errno != 0) printf("%s\n", strerror(errno));
 	}
 	fflush(out);
+#ifdef HAVE_FSYNC
 	fsync(fileno(out));
+#else
+	FlushFileBuffers((HANDLE)_fileno(out));
+#endif
 	fclose(out);
 }
 
@@ -1861,7 +1865,11 @@ write_root_anchor(const char* root_anchor_file, BIO* ds)
 		if(verb && errno != 0) printf("%s\n", strerror(errno));
 	}
 	fflush(out);
+#ifdef HAVE_FSYNC
 	fsync(fileno(out));
+#else
+	FlushFileBuffers((HANDLE)_fileno(out));
+#endif
 	fclose(out);
 }
 
diff --git a/validator/autotrust.c b/validator/autotrust.c
index 9c500e08e..6e0f16040 100644
--- a/validator/autotrust.c
+++ b/validator/autotrust.c
@@ -1197,8 +1197,12 @@ void autr_write_file(struct module_env* env, struct trust_anchor* tp)
 	}
 	if(fflush(out) != 0)
 		log_err("could not fflush(%s): %s", fname, strerror(errno));
+#ifdef HAVE_FSYNC
 	if(fsync(fileno(out)) != 0)
 		log_err("could not fsync(%s): %s", fname, strerror(errno));
+#else
+	FlushFileBuffers((HANDLE)_fileno(out));
+#endif
 	if(fclose(out) != 0) {
 		fatal_exit("could not complete write: %s: %s",
 			fname, strerror(errno));
-- 
2.47.2