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iodine
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Moved two global vars into main

This commit is contained in:
Erik Ekman 2009-02-15 21:12:47 +00:00 committed by Erik Ekman
parent 9e6ae4ff1d
commit aad34d941a
1 changed files with 19 additions and 19 deletions
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38
src/iodine.c
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@ -75,9 +75,6 @@ static int downstream_fragment;
static int down_ack_seqno;
static int down_ack_fragment;
static int max_downstream_frag_size;
static int autodetect_frag_size;
/* Current up/downstream IP packet */
static struct packet outpkt;
static struct packet inpkt;
@ -749,10 +746,11 @@ handshake_autoprobe_fragsize(int dns_fd)
int read;
int proposed_fragsize = 768;
int range = 768;
int max_fragsize = 0;
max_downstream_frag_size = 0;
max_fragsize = 0;
printf("Autoprobing max downstream fragment size... (skip with -m fragsize)\n");
while (running && range > 0 && (range >= 8 || !max_downstream_frag_size)) {
while (running && range > 0 && (range >= 8 || !max_fragsize)) {
for (i=0; running && i<3 ;i++) {
tv.tv_sec = 1;
tv.tv_usec = 0;
@ -773,7 +771,7 @@ handshake_autoprobe_fragsize(int dns_fd)
if (read == proposed_fragsize) {
printf("%d ok.. ", acked_fragsize);
fflush(stdout);
max_downstream_frag_size = acked_fragsize;
max_fragsize = acked_fragsize;
range >>= 1;
proposed_fragsize += range;
continue;
@ -797,20 +795,20 @@ badlen:
if (!running) {
printf("\n");
warnx("stopped while autodetecting fragment size (Try probing manually with -m)");
return 1;
return 0;
}
if (range == 0) {
/* Tried all the way down to 2 and found no good size */
printf("\n");
warnx("found no accepted fragment size. (Try probing manually with -m)");
return 1;
return 0;
}
printf("will use %d\n", max_downstream_frag_size);
return 0;
printf("will use %d\n", max_fragsize);
return max_fragsize;
}
static void
handshake_set_fragsize(int dns_fd)
handshake_set_fragsize(int dns_fd, int fragsize)
{
struct timeval tv;
char in[4096];
@ -819,12 +817,12 @@ handshake_set_fragsize(int dns_fd)
int r;
int read;
printf("Setting downstream fragment size to max %d...\n", max_downstream_frag_size);
printf("Setting downstream fragment size to max %d...\n", fragsize);
for (i=0; running && i<5 ;i++) {
tv.tv_sec = i + 1;
tv.tv_usec = 0;
send_set_downstream_fragsize(dns_fd, max_downstream_frag_size);
send_set_downstream_fragsize(dns_fd, fragsize);
FD_ZERO(&fds);
FD_SET(dns_fd, &fds);
@ -855,7 +853,7 @@ handshake_set_fragsize(int dns_fd)
}
static int
handshake(int dns_fd)
handshake(int dns_fd, int autodetect_frag_size, int fragsize)
{
int seed;
int r;
@ -877,13 +875,13 @@ handshake(int dns_fd)
}
if (autodetect_frag_size) {
r = handshake_autoprobe_fragsize(dns_fd);
if (r) {
return r;
fragsize = handshake_autoprobe_fragsize(dns_fd);
if (!fragsize) {
return 1;
}
}
handshake_set_fragsize(dns_fd);
handshake_set_fragsize(dns_fd, fragsize);
return 0;
}
@ -985,6 +983,8 @@ main(int argc, char **argv)
int choice;
int tun_fd;
int dns_fd;
int max_downstream_frag_size;
int autodetect_frag_size;
memset(password, 0, 33);
username = NULL;
@ -1113,7 +1113,7 @@ main(int argc, char **argv)
signal(SIGINT, sighandler);
signal(SIGTERM, sighandler);
if(handshake(dns_fd))
if(handshake(dns_fd, autodetect_frag_size, max_downstream_frag_size))
goto cleanup2;
printf("Sending queries for %s to %s\n", topdomain, nameserv_addr);