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ETHER: Fix bpf filter generation to not generate an invalid filter if only multicast addresses were provided

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Mark Pizzolato 2013-11-14 10:39:17 -08:00
parent f59d86d7c0
commit 949aa30bef
1 changed files with 5 additions and 0 deletions
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5
sim_ether.c
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@ -3031,6 +3031,11 @@ if ((addr_count > 0) && (dev->reflections > 0)) {
sprintf(&buf2[strlen(buf2)], "%s(ether src %s)", (*buf2) ? " or " : "", mac);
}
sprintf (&buf[strlen(buf)], ")");
if (1 == strlen(buf2)) { /* all addresses were multicast? */
buf[strlen(buf)-6] = '\0'; /* Remove "not ()" */
if (strlen(buf) > 0)
buf[strlen(buf)-5] = '\0'; /* remove " and " */
}
}
if (strlen(buf) > 0)
sprintf(&buf[strlen(buf)], ")");