Handle very large -f files by rejecting them.

[tcpdump] / print-fddi.c

diff --git a/print-fddi.c b/print-fddi.c
index 300441f186f0a0dedaf49a86e0a7989f6467fc9b..27803783b7d8e70b1b09df75554d5237391391bf 100644 (file)
--- a/print-fddi.c
+++ b/print-fddi.c
@@ -85,9 +85,9 @@ struct fddi_header {
  * Some FDDI interfaces use bit-swapped addresses.
  */
 #if defined(ultrix) || defined(__alpha) || defined(__bsdi) || defined(__NetBSD__) || defined(__linux__)
-int    fddi_bitswap = 0;
+static int fddi_bitswap = 0;
 #else
-int    fddi_bitswap = 1;
+static int fddi_bitswap = 1;
 #endif
 
 /*
@@ -278,6 +278,7 @@ fddi_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
 {
        const struct fddi_header *fddip = (const struct fddi_header *)p;
        struct ether_header ehdr;
+       struct lladdr_info src, dst;
        int llc_hdrlen;
 
        if (caplen < FDDI_HDRLEN) {
@@ -293,6 +294,11 @@ fddi_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
        if (ndo->ndo_eflag)
                fddi_hdr_print(ndo, fddip, length, ESRC(&ehdr), EDST(&ehdr));
 
+       src.addr = ESRC(&ehdr);
+       src.addr_string = etheraddr_string;
+       dst.addr = EDST(&ehdr);
+       dst.addr_string = etheraddr_string;
+
        /* Skip over FDDI MAC header */
        length -= FDDI_HDRLEN;
        p += FDDI_HDRLEN;
@@ -301,7 +307,7 @@ fddi_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
        /* Frame Control field determines interpretation of packet */
        if ((fddip->fddi_fc & FDDIFC_CLFF) == FDDIFC_LLC_ASYNC) {
                /* Try to print the LLC-layer header & higher layers */
-               llc_hdrlen = llc_print(ndo, p, length, caplen, ESRC(&ehdr), EDST(&ehdr));
+               llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
                if (llc_hdrlen < 0) {
                        /*
                         * Some kinds of LLC packet we cannot