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--- a/src/nemesis.h
+++ b/src/nemesis.h
@@ -164,10 +164,10 @@
extern int verbose;
extern int interval;
extern int count;
-int got_link;
-int got_payload;
-int got_ipoptions;
-int got_tcpoptions;
+extern int got_link;
+extern int got_payload;
+extern int got_ipoptions;
+extern int got_tcpoptions;
struct file {
uint8_t *file_buf; /* pointer to file memory */
--- a/src/nemesis.c
+++ b/src/nemesis.c
@@ -10,6 +10,9 @@
#include <string.h>
#include <unistd.h>
+int got_payload;
+int mode;
+
extern int optind;
static int usage(char *arg)
--- a/src/nemesis-icmp.c
+++ b/src/nemesis-icmp.c
@@ -12,6 +12,8 @@
#include <pcap.h>
#endif
+int got_origoptions;
+
static ETHERhdr etherhdr;
static IPhdr iphdr;
static IPhdr ipunreach;
--- a/src/nemesis-icmp.h
+++ b/src/nemesis-icmp.h
@@ -39,8 +39,8 @@
#include "nemesis.h"
#include <libnet.h>
-int mode; /* ICMP injection mode */
-int got_origoptions;
+extern int mode; /* ICMP injection mode */
+extern int got_origoptions;
int buildicmp(ETHERhdr *, IPhdr *, ICMPhdr *, IPhdr *, struct file *, struct file *, struct file *, libnet_t *);
--- a/src/nemesis-ospf.h
+++ b/src/nemesis-ospf.h
@@ -43,7 +43,7 @@
extern NETLSAhdr netlsahdr;
extern SUMLSAhdr sumlsahdr;
-int mode; /* OSPF injection mode */
+extern int mode; /* OSPF injection mode */
int buildospf(ETHERhdr *, IPhdr *, struct file *, struct file *, libnet_t *, int);
--- a/src/nemesis-dns.c
+++ b/src/nemesis-dns.c
@@ -12,6 +12,8 @@
#include <pcap.h>
#endif
+int state;
+
static ETHERhdr etherhdr;
static IPhdr iphdr;
static TCPhdr tcphdr;
--- a/src/nemesis-dns.h
+++ b/src/nemesis-dns.h
@@ -29,7 +29,7 @@
#include "nemesis.h"
#include <libnet.h>
-int state; /* default to UDP */
+extern int state; /* default to UDP */
int builddns(ETHERhdr *, IPhdr *, TCPhdr *, UDPhdr *, DNShdr *, struct file *, struct file *, struct file *, libnet_t *);
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