mirror of
https://github.com/yarrick/iodine.git
synced 2024-11-08 09:23:17 +00:00
knf
This commit is contained in:
parent
c58df44dc6
commit
0d08be747f
46
src/iodine.c
46
src/iodine.c
|
@ -101,9 +101,9 @@ read_dns(int fd, char *buf, int buflen)
|
||||||
int r;
|
int r;
|
||||||
|
|
||||||
addrlen = sizeof(struct sockaddr);
|
addrlen = sizeof(struct sockaddr);
|
||||||
r = recvfrom(fd, packet, sizeof(packet), 0, (struct sockaddr*)&from, &addrlen);
|
if ((r = recvfrom(fd, packet, sizeof(packet), 0,
|
||||||
if(r == -1) {
|
(struct sockaddr*)&from, &addrlen)) == -1) {
|
||||||
perror("recvfrom");
|
warn("recvfrom");
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -129,14 +129,15 @@ read_dns(int fd, char *buf, int buflen)
|
||||||
static int
|
static int
|
||||||
tunnel_tun(int tun_fd, int dns_fd)
|
tunnel_tun(int tun_fd, int dns_fd)
|
||||||
{
|
{
|
||||||
char out[64*1024];
|
|
||||||
char in[64*1024];
|
|
||||||
unsigned long outlen;
|
unsigned long outlen;
|
||||||
unsigned long inlen;
|
unsigned long inlen;
|
||||||
|
char out[64*1024];
|
||||||
|
char in[64*1024];
|
||||||
size_t read;
|
size_t read;
|
||||||
|
|
||||||
read = read_tun(tun_fd, in, sizeof(in));
|
if ((read = read_tun(tun_fd, in, sizeof(in))) <= 0)
|
||||||
if(read > 0) {
|
return -1;
|
||||||
|
|
||||||
outlen = sizeof(out);
|
outlen = sizeof(out);
|
||||||
inlen = read;
|
inlen = read;
|
||||||
compress2(out, &outlen, in, inlen, 9);
|
compress2(out, &outlen, in, inlen, 9);
|
||||||
|
@ -147,7 +148,6 @@ tunnel_tun(int tun_fd, int dns_fd)
|
||||||
packetlen = outlen;
|
packetlen = outlen;
|
||||||
|
|
||||||
send_chunk(dns_fd);
|
send_chunk(dns_fd);
|
||||||
}
|
|
||||||
|
|
||||||
return read;
|
return read;
|
||||||
}
|
}
|
||||||
|
@ -155,14 +155,15 @@ tunnel_tun(int tun_fd, int dns_fd)
|
||||||
static int
|
static int
|
||||||
tunnel_dns(int tun_fd, int dns_fd)
|
tunnel_dns(int tun_fd, int dns_fd)
|
||||||
{
|
{
|
||||||
char out[64*1024];
|
|
||||||
char in[64*1024];
|
|
||||||
unsigned long outlen;
|
unsigned long outlen;
|
||||||
unsigned long inlen;
|
unsigned long inlen;
|
||||||
|
char out[64*1024];
|
||||||
|
char in[64*1024];
|
||||||
size_t read;
|
size_t read;
|
||||||
|
|
||||||
read = read_dns(dns_fd, in, sizeof(in));
|
if ((read = read_dns(dns_fd, in, sizeof(in))) <= 0)
|
||||||
if (read > 0) {
|
return -1;
|
||||||
|
|
||||||
outlen = sizeof(out);
|
outlen = sizeof(out);
|
||||||
inlen = read;
|
inlen = read;
|
||||||
uncompress(out, &outlen, in, inlen);
|
uncompress(out, &outlen, in, inlen);
|
||||||
|
@ -170,7 +171,6 @@ tunnel_dns(int tun_fd, int dns_fd)
|
||||||
write_tun(tun_fd, out, outlen);
|
write_tun(tun_fd, out, outlen);
|
||||||
if (!is_sending())
|
if (!is_sending())
|
||||||
send_ping(dns_fd);
|
send_ping(dns_fd);
|
||||||
}
|
|
||||||
|
|
||||||
return read;
|
return read;
|
||||||
}
|
}
|
||||||
|
@ -408,7 +408,7 @@ handshake(int dns_fd)
|
||||||
return 1;
|
return 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
int
|
static void
|
||||||
set_target(const char *host)
|
set_target(const char *host)
|
||||||
{
|
{
|
||||||
struct hostent *h;
|
struct hostent *h;
|
||||||
|
@ -420,11 +420,8 @@ set_target(const char *host)
|
||||||
peer.sin_family = AF_INET;
|
peer.sin_family = AF_INET;
|
||||||
peer.sin_port = htons(53);
|
peer.sin_port = htons(53);
|
||||||
peer.sin_addr = *((struct in_addr *) h->h_addr);
|
peer.sin_addr = *((struct in_addr *) h->h_addr);
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void
|
static void
|
||||||
usage() {
|
usage() {
|
||||||
extern char *__progname;
|
extern char *__progname;
|
||||||
|
@ -449,14 +446,19 @@ help() {
|
||||||
printf(" -d device to set tunnel device name\n");
|
printf(" -d device to set tunnel device name\n");
|
||||||
printf("nameserver is the IP number of the relaying nameserver\n");
|
printf("nameserver is the IP number of the relaying nameserver\n");
|
||||||
printf("topdomain is the FQDN that is delegated to the tunnel endpoint.\n");
|
printf("topdomain is the FQDN that is delegated to the tunnel endpoint.\n");
|
||||||
|
|
||||||
exit(0);
|
exit(0);
|
||||||
}
|
}
|
||||||
|
|
||||||
static void
|
static void
|
||||||
version() {
|
version() {
|
||||||
char *svnver = "$Rev$ from $Date$";
|
char *svnver;
|
||||||
|
|
||||||
|
svnver = "$Rev$ from $Date$";
|
||||||
|
|
||||||
printf("iodine IP over DNS tunneling client\n");
|
printf("iodine IP over DNS tunneling client\n");
|
||||||
printf("SVN version: %s\n", svnver);
|
printf("SVN version: %s\n", svnver);
|
||||||
|
|
||||||
exit(0);
|
exit(0);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -472,12 +474,12 @@ main(int argc, char **argv)
|
||||||
int tun_fd;
|
int tun_fd;
|
||||||
int dns_fd;
|
int dns_fd;
|
||||||
|
|
||||||
username = NULL;
|
|
||||||
memset(password, 0, 33);
|
memset(password, 0, 33);
|
||||||
|
username = NULL;
|
||||||
foreground = 0;
|
foreground = 0;
|
||||||
chunkid = 0;
|
|
||||||
newroot = NULL;
|
newroot = NULL;
|
||||||
device = NULL;
|
device = NULL;
|
||||||
|
chunkid = 0;
|
||||||
|
|
||||||
while ((choice = getopt(argc, argv, "vfhu:t:d:P:")) != -1) {
|
while ((choice = getopt(argc, argv, "vfhu:t:d:P:")) != -1) {
|
||||||
switch(choice) {
|
switch(choice) {
|
||||||
|
@ -540,8 +542,7 @@ main(int argc, char **argv)
|
||||||
goto cleanup1;
|
goto cleanup1;
|
||||||
if ((dns_fd = open_dns(0, INADDR_ANY)) == -1)
|
if ((dns_fd = open_dns(0, INADDR_ANY)) == -1)
|
||||||
goto cleanup2;
|
goto cleanup2;
|
||||||
if (set_target(argv[0]) == -1)
|
set_target(argv[0]);
|
||||||
goto cleanup2;
|
|
||||||
|
|
||||||
signal(SIGINT, sighandler);
|
signal(SIGINT, sighandler);
|
||||||
signal(SIGTERM, sighandler);
|
signal(SIGTERM, sighandler);
|
||||||
|
@ -554,6 +555,7 @@ main(int argc, char **argv)
|
||||||
if (newroot) {
|
if (newroot) {
|
||||||
if (chroot(newroot) != 0 || chdir("/") != 0)
|
if (chroot(newroot) != 0 || chdir("/") != 0)
|
||||||
err(1, "%s", newroot);
|
err(1, "%s", newroot);
|
||||||
|
|
||||||
seteuid(geteuid());
|
seteuid(geteuid());
|
||||||
setuid(getuid());
|
setuid(getuid());
|
||||||
}
|
}
|
||||||
|
|
|
@ -88,10 +88,10 @@ tunnel_dns(int tun_fd, int dns_fd)
|
||||||
{
|
{
|
||||||
struct in_addr clientip;
|
struct in_addr clientip;
|
||||||
struct in_addr myip;
|
struct in_addr myip;
|
||||||
|
char logindata[16];
|
||||||
char out[64*1024];
|
char out[64*1024];
|
||||||
char in[64*1024];
|
char in[64*1024];
|
||||||
char *tmp[2];
|
char *tmp[2];
|
||||||
char logindata[16];
|
|
||||||
long outlen;
|
long outlen;
|
||||||
int read;
|
int read;
|
||||||
int code;
|
int code;
|
||||||
|
|
Loading…
Reference in a new issue