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do proper mtu detection, ticket #54

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This commit is contained in:
Erik Ekman 2009-03-06 23:16:23 +00:00
parent 7fe021cba9
commit 1971df98ee
1 changed files with 10 additions and 9 deletions
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15
src/iodine.c
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@ -772,26 +772,27 @@ handshake_autoprobe_fragsize(int dns_fd)
fprintf(stderr, "%d ok.. ", acked_fragsize);
fflush(stderr);
max_fragsize = acked_fragsize;
range >>= 1;
proposed_fragsize += range;
continue;
} else {
goto badlen;
}
}
if (strncmp("BADIP", in, 5) == 0) {
fprintf(stderr, "got BADIP.. ");
fflush(stderr);
}
break;
}
}
}
badlen:
range >>= 1;
if (max_fragsize == proposed_fragsize) {
/* Try bigger */
proposed_fragsize += range;
} else {
/* Try smaller */
fprintf(stderr, "%d not ok.. ", proposed_fragsize);
fflush(stderr);
range >>= 1;
proposed_fragsize -= range;
}
}
if (!running) {
fprintf(stderr, "\n");
warnx("stopped while autodetecting fragment size (Try probing manually with -m)");