From b4f12a17aaa6e9badb25409e59cd32d0c549dbb7 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Sat, 8 May 2010 14:49:59 -0400
Subject: [PATCH] Implement regress_make_tempfile on win32 to test
 evbuffer_add_file

(Conclusion: evbuffer_add_file is broken on win32, since it
uses recv on a file.)
---
 test/regress_buffer.c |  4 +---
 test/regress_main.c   | 29 ++++++++++++++++++++++++++---
 2 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/test/regress_buffer.c b/test/regress_buffer.c
index 291eee6e..fa24738e 100644
--- a/test/regress_buffer.c
+++ b/test/regress_buffer.c
@@ -583,7 +583,6 @@ test_evbuffer_reference(void *ptr)
 	evbuffer_free(src);
 }
 
-#ifndef WIN32
 int _evbuffer_testing_use_sendfile(void);
 int _evbuffer_testing_use_mmap(void);
 int _evbuffer_testing_use_linear_file_access(void);
@@ -643,7 +642,6 @@ test_evbuffer_add_file(void *ptr)
 	evutil_closesocket(pair[1]);
 	evbuffer_free(src);
 }
-#endif
 
 #ifndef _EVENT_DISABLE_MM_REPLACEMENT
 static void *
@@ -1544,9 +1542,9 @@ struct testcase_t evbuffer_testcases[] = {
 	  (void*)"sendfile" },
 	{ "add_file_mmap", test_evbuffer_add_file, TT_FORK, &nil_setup,
 	  (void*)"mmap" },
+#endif
 	{ "add_file_linear", test_evbuffer_add_file, TT_FORK, &nil_setup,
 	  (void*)"linear" },
-#endif
 
 	END_OF_TESTCASES
 };
diff --git a/test/regress_main.c b/test/regress_main.c
index f9544b6c..822ea80b 100644
--- a/test/regress_main.c
+++ b/test/regress_main.c
@@ -28,6 +28,8 @@
 #ifdef WIN32
 #include <winsock2.h>
 #include <windows.h>
+#include <io.h>
+#include <fcntl.h>
 #endif
 
 #include "event-config.h"
@@ -43,7 +45,6 @@
 #include <sys/time.h>
 #endif
 #include <sys/queue.h>
-#include <fcntl.h>
 #include <signal.h>
 #include <errno.h>
 #endif
@@ -125,8 +126,30 @@ regress_make_tmpfile(const void *data, size_t datalen)
 	unlink(tmpfilename);
 	return (fd);
 #else
-	/* we need a windows implementation here */
-	return (-1);
+	/* XXXX actually delete the file later */
+	char tmpfilepath[MAX_PATH];
+	char tmpfilename[MAX_PATH];
+	DWORD r, written;
+	int tries = 16;
+	HANDLE h;
+	r = GetTempPathA(MAX_PATH, tmpfilepath);
+	if (r > MAX_PATH || r == 0)
+		return (-1);
+	for (; tries > 0; --tries) {
+		r = GetTempFileNameA(tmpfilepath, "LIBEVENT", 0, tmpfilename);
+		if (r == 0)
+			return (-1);
+		h = CreateFileA(tmpfilename, GENERIC_READ|GENERIC_WRITE,
+		    0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+		if (h != INVALID_HANDLE_VALUE)
+			break;
+	}
+	if (tries == 0)
+		return (-1);
+	written = 0;
+	WriteFile(h, data, datalen, &written, NULL);
+	/* Closing the fd returned by this function will indeed close h. */
+	return _open_osfhandle((intptr_t)h,_O_RDONLY);
 #endif
 }
 
-- 
2.50.1