From 854adf52322f38a2b82ea33ef375d90a6e6f7daf Mon Sep 17 00:00:00 2001
From: gianluca <gianluca>
Date: Mon, 6 Oct 2008 15:27:32 +0000
Subject: [PATCH] Implemented pcap_hopen_offline(). This "internal" function
 allows us to support pcap_fopen_offline() on windows platforms (where FILE*
 handles cannot be passed on DLL boundaries).

---
 pcap-stdinc.h | 26 +++++++++++++++++++++++++-
 pcap/pcap.h   | 13 ++++++++++++-
 savefile.c    | 29 ++++++++++++++++++++++++++++-
 3 files changed, 65 insertions(+), 3 deletions(-)

diff --git a/pcap-stdinc.h b/pcap-stdinc.h
index 68c146d..32b52d8 100644
--- a/pcap-stdinc.h
+++ b/pcap-stdinc.h
@@ -28,7 +28,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * @(#) $Header: /tcpdump/master/libpcap/pcap-stdinc.h,v 1.10 2007-09-27 17:59:45 gianluca Exp $ (LBL)
+ * @(#) $Header: /tcpdump/master/libpcap/pcap-stdinc.h,v 1.11 2008-10-06 15:27:32 gianluca Exp $ (LBL)
  */
 
 #define SIZEOF_CHAR 1
@@ -64,3 +64,27 @@
 #define vsnprintf _vsnprintf
 #define strdup _strdup
 #define inline __inline 
+
+#ifdef __MINGW32__
+#include <stdint.h>
+#else /*__MINGW32__*/
+/* MSVC compiler */
+#ifndef _UINTPTR_T_DEFINED
+#ifdef  _WIN64
+typedef unsigned __int64    uintptr_t;
+#else
+typedef _W64 unsigned int   uintptr_t;
+#endif
+#define _UINTPTR_T_DEFINED
+#endif
+
+#ifndef _INTPTR_T_DEFINED
+#ifdef  _WIN64
+typedef __int64    intptr_t;
+#else
+typedef _W64 int   intptr_t;
+#endif
+#define _INTPTR_T_DEFINED
+#endif 
+
+#endif /*__MINGW32__*/
diff --git a/pcap/pcap.h b/pcap/pcap.h
index 2175308..29d5a4e 100644
--- a/pcap/pcap.h
+++ b/pcap/pcap.h
@@ -31,7 +31,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * @(#) $Header: /tcpdump/master/libpcap/pcap/pcap.h,v 1.14 2008-07-01 08:02:33 guy Exp $ (LBL)
+ * @(#) $Header: /tcpdump/master/libpcap/pcap/pcap.h,v 1.15 2008-10-06 15:27:32 gianluca Exp $ (LBL)
  */
 
 #ifndef lib_pcap_pcap_h
@@ -268,7 +268,18 @@ int	pcap_activate(pcap_t *);
 pcap_t	*pcap_open_live(const char *, int, int, int, char *);
 pcap_t	*pcap_open_dead(int, int);
 pcap_t	*pcap_open_offline(const char *, char *);
+#if defined(WIN32)
+pcap_t  *pcap_hopen_offline(intptr_t, char *);
+#if !defined(LIBPCAP_EXPORTS)
+#define pcap_fopen_offline(f,b) \
+	pcap_hopen_offline(_get_osfhandle(_fileno(f)), b)
+#else /*LIBPCAP_EXPORTS*/
+static pcap_t *pcap_fopen_offline(FILE *, char *);
+#endif
+#else /*WIN32*/
 pcap_t	*pcap_fopen_offline(FILE *, char *);
+#endif /*WIN32*/
+
 void	pcap_close(pcap_t *);
 int	pcap_loop(pcap_t *, int, pcap_handler, u_char *);
 int	pcap_dispatch(pcap_t *, int, pcap_handler, u_char *);
diff --git a/savefile.c b/savefile.c
index db9ed54..2624e2f 100644
--- a/savefile.c
+++ b/savefile.c
@@ -30,7 +30,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/libpcap/savefile.c,v 1.177 2008-09-22 20:14:19 guy Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/libpcap/savefile.c,v 1.178 2008-10-06 15:27:32 gianluca Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -1154,6 +1154,33 @@ pcap_open_offline(const char *fname, char *errbuf)
 	return (p);
 }
 
+#ifdef WIN32
+pcap_t* pcap_hopen_offline(intptr_t osfd, char *errbuf)
+{
+	int fd;
+	FILE *file;
+
+	fd = _open_osfhandle(osfd, _O_RDONLY);
+	if ( fd < 0 ) 
+	{
+		snprintf(errbuf, PCAP_ERRBUF_SIZE, pcap_strerror(errno));
+		return NULL;
+	}
+
+	file = _fdopen(fd, "rb");
+	if ( file == NULL ) 
+	{
+		snprintf(errbuf, PCAP_ERRBUF_SIZE, pcap_strerror(errno));
+		return NULL;
+	}
+
+	return pcap_fopen_offline(file, errbuf);
+}
+#endif
+
+#ifdef WIN32
+static
+#endif
 pcap_t *
 pcap_fopen_offline(FILE *fp, char *errbuf)
 {