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-rw-r--r--src/ipcalc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/ipcalc.c b/src/ipcalc.c
index da452d3b..56b5ae87 100644
--- a/src/ipcalc.c
+++ b/src/ipcalc.c
@@ -20,6 +20,7 @@
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
+#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
@@ -28,12 +29,12 @@
\def IPBITS
\brief the number of bits in an IP address.
*/
-#define IPBITS (sizeof(unsigned long int) * 8)
+#define IPBITS (sizeof(u_int32_t) * 8)
/*!
\def IPBYTES
\brief the number of bytes in an IP address.
*/
-#define IPBYTES (sizeof(unsigned long int))
+#define IPBYTES (sizeof(u_int32_t))
/*!