better config of ifconfig differences

src/include/os/Linux/osiSock.h

@@ -68,5 +68,7 @@ typedef socklen_t osiSocklen_t;
 #define SOCK_EINTR EINTR
 #define SOCK_EPIPE EPIPE
 
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
 #endif /*osiSockH*/
 

src/include/os/WIN32/osiSock.h

@@ -45,3 +45,7 @@ typedef int osiSocklen_t;
  *	fd can be used with FD_SET(), FD_CLR(), and FD_ISSET().
  */
 #define FD_IN_FDSET(FD) (1)
+
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
+

src/include/os/alpha/osiSock.h

@@ -62,5 +62,7 @@ typedef int osiSocklen_t;
 #define SOCK_EINTR EINTR
 #define SOCK_EPIPE EPIPE
 
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
 #endif /*osiSockH*/
 

src/include/os/cygwin32/osiSock.h

@@ -80,5 +80,7 @@ typedef int osiSocklen_t;
 #define SOCK_EINTR EINTR
 #define SOCK_EPIPE EPIPE
 
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
 #endif /*osiSockH*/
 

src/include/os/hp700/osiSock.h

@@ -64,5 +64,7 @@ typedef int osiSocklen_t;
 #define SOCK_EINTR EINTR
 #define SOCK_EPIPE EPIPE
 
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
 #endif /*osiSockH*/
 

src/include/os/sgi/osiSock.h

@@ -61,5 +61,7 @@ typedef int osiSocklen_t;
 #define SOCK_EINTR EINTR
 #define SOCK_EPIPE EPIPE
 
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
 #endif /*osiSockH*/
 

src/include/os/solaris/osiSock.h

@@ -72,5 +72,7 @@ typedef int osiSocklen_t;
 #define SOCK_EINTR EINTR
 #define SOCK_EPIPE EPIPE
 
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
 #endif /*osiSockH*/
 

src/include/os/sun4/osiSock.h

@@ -128,5 +128,7 @@ typedef int osiSocklen_t;
 #define SOCK_EINTR EINTR
 #define SOCK_EPIPE EPIPE
 
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
 #endif /*osiSockH*/
 

src/include/os/vms/osiSock.h

@@ -158,5 +158,7 @@ typedef int osiSocklen_t;
 #	define FD_IN_FDSET(FD) ((FD)<FD_SETSIZE&&(FD)>=0)
 #endif
 
+#define ifreq_size(pifreq) sizeof(*pifreq)
+
 #endif /*osiSockH*/
 

src/include/os/vxWorks/osiSock.h

@@ -58,6 +58,12 @@ typedef int osiSocklen_t;
 #define INADDR_LOOPBACK 0x7F000001
 #endif
 
+#if ( defined (BSD) && ( BSD >= 44 ) )
+#   define ifreq_size(pifreq) (pifreq->ifr_addr.sa_len + sizeof(pifreq->ifr_name))
+#else
+#   define ifreq_size(pifreq) sizeof(*pifreq)
+#endif
+
 #endif /*osiSockH*/