From da286857e084c98caf151629177fa1fcd7d087fc Mon Sep 17 00:00:00 2001
From: Dominik Schmidt <dev@dominik-schmidt.de>
Date: Mon, 20 Feb 2012 17:11:13 +0100
Subject: [PATCH] windows: add utimes implementation

---
 ConfigureChecks.cmake     |  2 ++
 config.h.cmake            |  3 +-
 src/std/c_time.c          | 72 +++++++++++++++++++++++++++++++++++++++
 src/std/c_time.h          |  3 ++
 src/vio/csync_vio_local.c |  3 +-
 5 files changed, 80 insertions(+), 3 deletions(-)

diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index d08d2d418..eda34361a 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -48,4 +48,6 @@ endif()
 
 check_function_exists(strerror_r HAVE_STRERROR_R)
 
+check_function_exists(utimes HAVE_UTIMES)
+
 set(CSYNC_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "csync required system libraries")
diff --git a/config.h.cmake b/config.h.cmake
index b4c1405b9..ff7321c4c 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -11,4 +11,5 @@
 #cmakedefine HAVE_CLOCK_GETTIME
 
 #cmakedefine WITH_LOG4C 1
-#cmakedefine HAVE_STRERROR_R
\ No newline at end of file
+#cmakedefine HAVE_STRERROR_R
+#cmakedefine HAVE_UTIMES
diff --git a/src/std/c_time.c b/src/std/c_time.c
index 270ff7823..84cfa1ffe 100644
--- a/src/std/c_time.c
+++ b/src/std/c_time.c
@@ -63,3 +63,75 @@ double c_secdiff(struct timespec clock1, struct timespec clock0) {
   return ret;
 }
 
+
+#ifdef HAVE_UTIMES
+int c_utimes(const char *uri, const struct timeval *times) {
+    return utimes(uri, times);
+}
+#else // HAVE_UTIMES
+
+#ifdef _WIN32
+// implementation for utimes taken from KDE mingw headers
+
+#include <errno.h>
+#include <wtypes.h>
+#define CSYNC_SECONDS_SINCE_1601 11644473600LL
+#define CSYNC_USEC_IN_SEC            1000000LL
+//after Microsoft KB167296
+static void UnixTimevalToFileTime(struct timeval t, LPFILETIME pft)
+{
+    LONGLONG ll;
+    ll = Int32x32To64(t.tv_sec, CSYNC_USEC_IN_SEC*10) + t.tv_usec*10 + CSYNC_SECONDS_SINCE_1601*CSYNC_USEC_IN_SEC*10;
+    pft->dwLowDateTime = (DWORD)ll;
+    pft->dwHighDateTime = ll >> 32;
+}
+
+int c_utimes(const char *uri, const struct timeval *times) {
+    FILETIME LastAccessTime;
+    FILETIME LastModificationTime;
+    HANDLE hFile;
+
+    if(times) {
+        UnixTimevalToFileTime(times[0], &LastAccessTime);
+        UnixTimevalToFileTime(times[1], &LastModificationTime);
+    }
+    else {
+        GetSystemTimeAsFileTime(&LastAccessTime);
+        GetSystemTimeAsFileTime(&LastModificationTime);
+    }
+
+    hFile=CreateFileA(uri, FILE_WRITE_ATTRIBUTES, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
+    if(hFile==INVALID_HANDLE_VALUE) {
+        switch(GetLastError()) {
+            case ERROR_FILE_NOT_FOUND:
+                errno=ENOENT;
+                break;
+            case ERROR_PATH_NOT_FOUND:
+            case ERROR_INVALID_DRIVE:
+                errno=ENOTDIR;
+                break;
+                /*case ERROR_WRITE_PROTECT:   //CreateFile sets ERROR_ACCESS_DENIED on read-only devices
+                 *                errno=EROFS;
+                 *                break;*/
+                case ERROR_ACCESS_DENIED:
+                    errno=EACCES;
+                    break;
+                default:
+                    errno=ENOENT;   //what other errors can occur?
+        }
+
+        return -1;
+    }
+
+    if(!SetFileTime(hFile, NULL, &LastAccessTime, &LastModificationTime)) {
+        //can this happen?
+        errno=ENOENT;
+        return -1;
+    }
+
+    CloseHandle(hFile);
+    return 0;
+}
+
+#endif // _WIN32
+#endif // HAVE_UTIMES
diff --git a/src/std/c_time.h b/src/std/c_time.h
index 735971b05..da9dc3631 100644
--- a/src/std/c_time.h
+++ b/src/std/c_time.h
@@ -24,6 +24,7 @@
 #define _C_TIME_H
 
 #include <time.h>
+#include <sys/time.h>
 
 /**
  * @brief Calculate time difference
@@ -52,4 +53,6 @@ struct timespec c_tspecdiff(struct timespec time1, struct timespec time0);
  */
 double c_secdiff(struct timespec clock1, struct timespec clock0);
 
+int c_utimes(const char *uri, const struct timeval *times);
+
 #endif /* _C_TIME_H */
diff --git a/src/vio/csync_vio_local.c b/src/vio/csync_vio_local.c
index 7a9e6def7..fcef78273 100644
--- a/src/vio/csync_vio_local.c
+++ b/src/vio/csync_vio_local.c
@@ -357,6 +357,5 @@ int csync_vio_local_chown(const char *uri, uid_t owner, gid_t group) {
 }
 
 int csync_vio_local_utimes(const char *uri, const struct timeval *times) {
-  return utimes(uri, times);
+    return c_utimes(uri, times);
 }
-