[gdal-dev] set dbf header date to current date on modification

[Dave Fuhry]

Patch to ogr/ogrsf_frmts/shape/dbfopen.c attached, which sets the dbf
header's date to the current date on modification.  Old code had the
dbf header's date hardcoded to 07/26/95.

Tested on Linux.  Hope it can make its way into OGR.

-Dave

Index: ogr/ogrsf_frmts/shape/dbfopen.c
===================================================================
--- ogr/ogrsf_frmts/shape/dbfopen.c	(revision 15119)
+++ ogr/ogrsf_frmts/shape/dbfopen.c	(working copy)
@@ -110,6 +110,7 @@
 #include <stdlib.h>
 #include <ctype.h>
 #include <string.h>
+#include <time.h>
 
 SHP_CVSID("$Id: dbfopen.c,v 1.74 2007/12/06 07:00:25 fwarmerdam Exp $")
 
@@ -148,6 +149,8 @@
 {
     unsigned char	abyHeader[XBASE_FLDHDR_SZ];
     int		i;
+    time_t cur_time;
+    struct tm timestruct;
 
     if( !psDBF->bNoHeader )
         return;
@@ -162,10 +165,18 @@
 
     abyHeader[0] = 0x03;		/* memo field? - just copying 	*/
 
-    /* write out a dummy date */
-    abyHeader[1] = 95;			/* YY */
-    abyHeader[2] = 7;			/* MM */
-    abyHeader[3] = 26;			/* DD */
+    if ((cur_time = time(NULL)) == 0)
+    {
+      /* TODO: handle error getting time() */
+    }
+    tzset();
+    if (localtime_r(&cur_time, &timestruct) == NULL)
+    {
+      /* TODO: handle error calling localtime_r */
+    }
+    abyHeader[1] = timestruct.tm_year % 100;		/* YY */
+    abyHeader[2] = timestruct.tm_mon + 1;		/* MM */
+    abyHeader[3] = timestruct.tm_mday;			/* DD */
 
     /* record count preset at zero */
 

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