Don't directly fetch multi-byte integers from packets.

[tcpdump] / print-symantec.c

diff --git a/print-symantec.c b/print-symantec.c
index ebb62cd4d135ac5bb67644d8915484dfa69a4f72..e212b1a436b10f64b21f9322cd47640fddf6bf1c 100644 (file)
--- a/print-symantec.c
+++ b/print-symantec.c
@@ -33,6 +33,7 @@ static const char rcsid[] _U_ =
 #include <pcap.h>
 
 #include "interface.h"
+#include "extract.h"
 #include "addrtoname.h"
 #include "ethertype.h"
 
@@ -52,7 +53,7 @@ symantec_hdr_print(register const u_char *bp, u_int length)
 
        sp = (const struct symantec_header *)bp;
 
-       etype = ntohs(sp->ether_type);
+       etype = EXTRACT_16BITS(&sp->ether_type);
        if (!qflag) {
                if (etype <= ETHERMTU)
                          (void)printf("invalid ethertype %u", etype);
@@ -98,7 +99,7 @@ symantec_if_print(const struct pcap_pkthdr *h, const u_char *p)
        sp = (struct symantec_header *)p;
        p += sizeof (struct symantec_header);
 
-       ether_type = ntohs(sp->ether_type);
+       ether_type = EXTRACT_16BITS(&sp->ether_type);
 
        if (ether_type <= ETHERMTU) {
                /* ether_type not known, print raw packet */