unsigned char clientid[6];
};
-struct X11Auth {
- unsigned char fakedata[64], realdata[64];
- int fakeproto, realproto;
- int fakelen, reallen;
- tree234 *xdmseen;
-};
-
struct X11Private {
const struct plug_function_table *fn;
/* the above variable absolutely *must* be the first in this structure */
unsigned char firstpkt[12]; /* first X data packet */
- struct X11Auth *auth;
+ struct X11Display *disp;
char *auth_protocol;
unsigned char *auth_data;
int data_read, auth_plen, auth_psize, auth_dlen, auth_dsize;
memcmp(sa->clientid, sb->clientid, sizeof(sa->clientid));
}
-void *x11_invent_auth(char *proto, int protomaxlen,
- char *data, int datamaxlen, int proto_id)
+/* Do-nothing "plug" implementation, used by x11_setup_display() when it
+ * creates a trial connection (and then immediately closes it).
+ * XXX: bit out of place here, could in principle live in a platform-
+ * independent network.c or something */
+static void dummy_plug_log(Plug p, int type, SockAddr addr, int port,
+ const char *error_msg, int error_code) { }
+static int dummy_plug_closing
+ (Plug p, const char *error_msg, int error_code, int calling_back)
+{ return 1; }
+static int dummy_plug_receive(Plug p, int urgent, char *data, int len)
+{ return 1; }
+static void dummy_plug_sent(Plug p, int bufsize) { }
+static int dummy_plug_accepting(Plug p, OSSocket sock) { return 1; }
+static const struct plug_function_table dummy_plug = {
+ dummy_plug_log, dummy_plug_closing, dummy_plug_receive,
+ dummy_plug_sent, dummy_plug_accepting
+};
+
+struct X11Display *x11_setup_display(char *display, int authtype, Conf *conf)
{
- struct X11Auth *auth = snew(struct X11Auth);
- char ourdata[64];
+ struct X11Display *disp = snew(struct X11Display);
+ char *localcopy;
int i;
- if (proto_id == X11_MIT) {
- auth->fakeproto = X11_MIT;
+ if (!display || !*display) {
+ localcopy = platform_get_x_display();
+ if (!localcopy || !*localcopy) {
+ sfree(localcopy);
+ localcopy = dupstr(":0"); /* plausible default for any platform */
+ }
+ } else
+ localcopy = dupstr(display);
+
+ /*
+ * Parse the display name.
+ *
+ * We expect this to have one of the following forms:
+ *
+ * - the standard X format which looks like
+ * [ [ protocol '/' ] host ] ':' displaynumber [ '.' screennumber ]
+ * (X11 also permits a double colon to indicate DECnet, but
+ * that's not our problem, thankfully!)
+ *
+ * - only seen in the wild on MacOS (so far): a pathname to a
+ * Unix-domain socket, which will typically and confusingly
+ * end in ":0", and which I'm currently distinguishing from
+ * the standard scheme by noting that it starts with '/'.
+ */
+ if (localcopy[0] == '/') {
+ disp->unixsocketpath = localcopy;
+ disp->unixdomain = TRUE;
+ disp->hostname = NULL;
+ disp->displaynum = -1;
+ disp->screennum = 0;
+ disp->addr = NULL;
+ } else {
+ char *colon, *dot, *slash;
+ char *protocol, *hostname;
+
+ colon = strrchr(localcopy, ':');
+ if (!colon) {
+ sfree(disp);
+ sfree(localcopy);
+ return NULL; /* FIXME: report a specific error? */
+ }
+
+ *colon++ = '\0';
+ dot = strchr(colon, '.');
+ if (dot)
+ *dot++ = '\0';
+
+ disp->displaynum = atoi(colon);
+ if (dot)
+ disp->screennum = atoi(dot);
+ else
+ disp->screennum = 0;
+
+ protocol = NULL;
+ hostname = localcopy;
+ if (colon > localcopy) {
+ slash = strchr(localcopy, '/');
+ if (slash) {
+ *slash++ = '\0';
+ protocol = localcopy;
+ hostname = slash;
+ }
+ }
+
+ disp->hostname = *hostname ? dupstr(hostname) : NULL;
+
+ if (protocol)
+ disp->unixdomain = (!strcmp(protocol, "local") ||
+ !strcmp(protocol, "unix"));
+ else if (!*hostname || !strcmp(hostname, "unix"))
+ disp->unixdomain = platform_uses_x11_unix_by_default;
+ else
+ disp->unixdomain = FALSE;
+
+ if (!disp->hostname && !disp->unixdomain)
+ disp->hostname = dupstr("localhost");
+
+ disp->unixsocketpath = NULL;
+ disp->addr = NULL;
+
+ sfree(localcopy);
+ }
+
+ /*
+ * Look up the display hostname, if we need to.
+ */
+ if (!disp->unixdomain) {
+ const char *err;
+
+ disp->port = 6000 + disp->displaynum;
+ disp->addr = name_lookup(disp->hostname, disp->port,
+ &disp->realhost, conf, ADDRTYPE_UNSPEC);
+
+ if ((err = sk_addr_error(disp->addr)) != NULL) {
+ sk_addr_free(disp->addr);
+ sfree(disp->hostname);
+ sfree(disp->unixsocketpath);
+ sfree(disp);
+ return NULL; /* FIXME: report an error */
+ }
+ }
+
+ /*
+ * Try upgrading an IP-style localhost display to a Unix-socket
+ * display (as the standard X connection libraries do).
+ */
+ if (!disp->unixdomain && sk_address_is_local(disp->addr)) {
+ SockAddr ux = platform_get_x11_unix_address(NULL, disp->displaynum);
+ const char *err = sk_addr_error(ux);
+ if (!err) {
+ /* Create trial connection to see if there is a useful Unix-domain
+ * socket */
+ const struct plug_function_table *dummy = &dummy_plug;
+ Socket s = sk_new(sk_addr_dup(ux), 0, 0, 0, 0, 0, (Plug)&dummy);
+ err = sk_socket_error(s);
+ sk_close(s);
+ }
+ if (err) {
+ sk_addr_free(ux);
+ } else {
+ sk_addr_free(disp->addr);
+ disp->unixdomain = TRUE;
+ disp->addr = ux;
+ /* Fill in the rest in a moment */
+ }
+ }
+
+ if (disp->unixdomain) {
+ if (!disp->addr)
+ disp->addr = platform_get_x11_unix_address(disp->unixsocketpath,
+ disp->displaynum);
+ if (disp->unixsocketpath)
+ disp->realhost = dupstr(disp->unixsocketpath);
+ else
+ disp->realhost = dupprintf("unix:%d", disp->displaynum);
+ disp->port = 0;
+ }
+
+ /*
+ * Invent the remote authorisation details.
+ */
+ if (authtype == X11_MIT) {
+ disp->remoteauthproto = X11_MIT;
/* MIT-MAGIC-COOKIE-1. Cookie size is 128 bits (16 bytes). */
- auth->fakelen = 16;
+ disp->remoteauthdata = snewn(16, unsigned char);
for (i = 0; i < 16; i++)
- auth->fakedata[i] = random_byte();
- auth->xdmseen = NULL;
+ disp->remoteauthdata[i] = random_byte();
+ disp->remoteauthdatalen = 16;
+
+ disp->xdmseen = NULL;
} else {
- assert(proto_id == X11_XDM);
- auth->fakeproto = X11_XDM;
+ assert(authtype == X11_XDM);
+ disp->remoteauthproto = X11_XDM;
/* XDM-AUTHORIZATION-1. Cookie size is 16 bytes; byte 8 is zero. */
- auth->fakelen = 16;
+ disp->remoteauthdata = snewn(16, unsigned char);
for (i = 0; i < 16; i++)
- auth->fakedata[i] = (i == 8 ? 0 : random_byte());
- auth->xdmseen = newtree234(xdmseen_cmp);
+ disp->remoteauthdata[i] = (i == 8 ? 0 : random_byte());
+ disp->remoteauthdatalen = 16;
+
+ disp->xdmseen = newtree234(xdmseen_cmp);
}
+ disp->remoteauthprotoname = dupstr(x11_authnames[disp->remoteauthproto]);
+ disp->remoteauthdatastring = snewn(disp->remoteauthdatalen * 2 + 1, char);
+ for (i = 0; i < disp->remoteauthdatalen; i++)
+ sprintf(disp->remoteauthdatastring + i*2, "%02x",
+ disp->remoteauthdata[i]);
- /* Now format for the recipient. */
- strncpy(proto, x11_authnames[auth->fakeproto], protomaxlen);
- ourdata[0] = '\0';
- for (i = 0; i < auth->fakelen; i++)
- sprintf(ourdata + strlen(ourdata), "%02x", auth->fakedata[i]);
- strncpy(data, ourdata, datamaxlen);
+ /*
+ * Fetch the local authorisation details.
+ */
+ disp->localauthproto = X11_NO_AUTH;
+ disp->localauthdata = NULL;
+ disp->localauthdatalen = 0;
+ platform_get_x11_auth(disp, conf);
- return auth;
+ return disp;
}
-void x11_free_auth(void *authv)
+void x11_free_display(struct X11Display *disp)
{
- struct X11Auth *auth = (struct X11Auth *)authv;
- struct XDMSeen *seen;
-
- if (auth->xdmseen != NULL) {
- while ((seen = delpos234(auth->xdmseen, 0)) != NULL)
+ if (disp->xdmseen != NULL) {
+ struct XDMSeen *seen;
+ while ((seen = delpos234(disp->xdmseen, 0)) != NULL)
sfree(seen);
- freetree234(auth->xdmseen);
+ freetree234(disp->xdmseen);
}
- sfree(auth);
-}
-
-/*
- * Fetch the real auth data for a given display string, and store
- * it in an X11Auth structure. Returns NULL on success, or an error
- * string.
- */
-void x11_get_real_auth(void *authv, char *display)
-{
- struct X11Auth *auth = (struct X11Auth *)authv;
-
- auth->realproto = X11_NO_AUTH; /* in case next call does nothing */
-
- auth->reallen = sizeof(auth->realdata);
- platform_get_x11_auth(display, &auth->realproto,
- auth->realdata, &auth->reallen);
+ sfree(disp->hostname);
+ sfree(disp->unixsocketpath);
+ if (disp->localauthdata)
+ smemclr(disp->localauthdata, disp->localauthdatalen);
+ sfree(disp->localauthdata);
+ if (disp->remoteauthdata)
+ smemclr(disp->remoteauthdata, disp->remoteauthdatalen);
+ sfree(disp->remoteauthdata);
+ sfree(disp->remoteauthprotoname);
+ sfree(disp->remoteauthdatastring);
+ sk_addr_free(disp->addr);
+ sfree(disp);
}
#define XDM_MAXSKEW 20*60 /* 20 minute clock skew should be OK */
static char *x11_verify(unsigned long peer_ip, int peer_port,
- struct X11Auth *auth, char *proto,
+ struct X11Display *disp, char *proto,
unsigned char *data, int dlen)
{
- if (strcmp(proto, x11_authnames[auth->fakeproto]) != 0)
- return "wrong authentication protocol attempted";
- if (auth->fakeproto == X11_MIT) {
- if (dlen != auth->fakelen)
+ if (strcmp(proto, x11_authnames[disp->remoteauthproto]) != 0)
+ return "wrong authorisation protocol attempted";
+ if (disp->remoteauthproto == X11_MIT) {
+ if (dlen != disp->remoteauthdatalen)
return "MIT-MAGIC-COOKIE-1 data was wrong length";
- if (memcmp(auth->fakedata, data, dlen) != 0)
+ if (memcmp(disp->remoteauthdata, data, dlen) != 0)
return "MIT-MAGIC-COOKIE-1 data did not match";
}
- if (auth->fakeproto == X11_XDM) {
+ if (disp->remoteauthproto == X11_XDM) {
unsigned long t;
time_t tim;
int i;
return "XDM-AUTHORIZATION-1 data was wrong length";
if (peer_port == -1)
return "cannot do XDM-AUTHORIZATION-1 without remote address data";
- des_decrypt_xdmauth(auth->fakedata+9, data, 24);
- if (memcmp(auth->fakedata, data, 8) != 0)
+ des_decrypt_xdmauth(disp->remoteauthdata+9, data, 24);
+ if (memcmp(disp->remoteauthdata, data, 8) != 0)
return "XDM-AUTHORIZATION-1 data failed check"; /* cookie wrong */
if (GET_32BIT_MSB_FIRST(data+8) != peer_ip)
return "XDM-AUTHORIZATION-1 data failed check"; /* IP wrong */
seen = snew(struct XDMSeen);
seen->time = t;
memcpy(seen->clientid, data+8, 6);
- assert(auth->xdmseen != NULL);
- ret = add234(auth->xdmseen, seen);
+ assert(disp->xdmseen != NULL);
+ ret = add234(disp->xdmseen, seen);
if (ret != seen) {
sfree(seen);
return "XDM-AUTHORIZATION-1 data replayed";
}
/* While we're here, purge entries too old to be replayed. */
for (;;) {
- seen = index234(auth->xdmseen, 0);
+ seen = index234(disp->xdmseen, 0);
assert(seen != NULL);
if (t - seen->time <= XDM_MAXSKEW)
break;
- sfree(delpos234(auth->xdmseen, 0));
+ sfree(delpos234(disp->xdmseen, 0));
}
}
/* implement other protocols here if ever required */
return NULL;
}
+void x11_get_auth_from_authfile(struct X11Display *disp,
+ const char *authfilename)
+{
+ FILE *authfp;
+ char *buf, *ptr, *str[4];
+ int len[4];
+ int family, protocol;
+ int ideal_match = FALSE;
+ char *ourhostname;
+
+ /*
+ * Normally we should look for precisely the details specified in
+ * `disp'. However, there's an oddity when the display is local:
+ * displays like "localhost:0" usually have their details stored
+ * in a Unix-domain-socket record (even if there isn't actually a
+ * real Unix-domain socket available, as with OpenSSH's proxy X11
+ * server).
+ *
+ * This is apparently a fudge to get round the meaninglessness of
+ * "localhost" in a shared-home-directory context -- xauth entries
+ * for Unix-domain sockets already disambiguate this by storing
+ * the *local* hostname in the conveniently-blank hostname field,
+ * but IP "localhost" records couldn't do this. So, typically, an
+ * IP "localhost" entry in the auth database isn't present and if
+ * it were it would be ignored.
+ *
+ * However, we don't entirely trust that (say) Windows X servers
+ * won't rely on a straight "localhost" entry, bad idea though
+ * that is; so if we can't find a Unix-domain-socket entry we'll
+ * fall back to an IP-based entry if we can find one.
+ */
+ int localhost = !disp->unixdomain && sk_address_is_local(disp->addr);
+
+ authfp = fopen(authfilename, "rb");
+ if (!authfp)
+ return;
+
+ ourhostname = get_hostname();
+
+ /* Records in .Xauthority contain four strings of up to 64K each */
+ buf = snewn(65537 * 4, char);
+
+ while (!ideal_match) {
+ int c, i, j, match = FALSE;
+
+#define GET do { c = fgetc(authfp); if (c == EOF) goto done; c = (unsigned char)c; } while (0)
+ /* Expect a big-endian 2-byte number giving address family */
+ GET; family = c;
+ GET; family = (family << 8) | c;
+ /* Then expect four strings, each composed of a big-endian 2-byte
+ * length field followed by that many bytes of data */
+ ptr = buf;
+ for (i = 0; i < 4; i++) {
+ GET; len[i] = c;
+ GET; len[i] = (len[i] << 8) | c;
+ str[i] = ptr;
+ for (j = 0; j < len[i]; j++) {
+ GET; *ptr++ = c;
+ }
+ *ptr++ = '\0';
+ }
+#undef GET
+
+ /*
+ * Now we have a full X authority record in memory. See
+ * whether it matches the display we're trying to
+ * authenticate to.
+ *
+ * The details we've just read should be interpreted as
+ * follows:
+ *
+ * - 'family' is the network address family used to
+ * connect to the display. 0 means IPv4; 6 means IPv6;
+ * 256 means Unix-domain sockets.
+ *
+ * - str[0] is the network address itself. For IPv4 and
+ * IPv6, this is a string of binary data of the
+ * appropriate length (respectively 4 and 16 bytes)
+ * representing the address in big-endian format, e.g.
+ * 7F 00 00 01 means IPv4 localhost. For Unix-domain
+ * sockets, this is the host name of the machine on
+ * which the Unix-domain display resides (so that an
+ * .Xauthority file on a shared file system can contain
+ * authority entries for Unix-domain displays on
+ * several machines without them clashing).
+ *
+ * - str[1] is the display number. I've no idea why
+ * .Xauthority stores this as a string when it has a
+ * perfectly good integer format, but there we go.
+ *
+ * - str[2] is the authorisation method, encoded as its
+ * canonical string name (i.e. "MIT-MAGIC-COOKIE-1",
+ * "XDM-AUTHORIZATION-1" or something we don't
+ * recognise).
+ *
+ * - str[3] is the actual authorisation data, stored in
+ * binary form.
+ */
+
+ if (disp->displaynum < 0 || disp->displaynum != atoi(str[1]))
+ continue; /* not the one */
+
+ for (protocol = 1; protocol < lenof(x11_authnames); protocol++)
+ if (!strcmp(str[2], x11_authnames[protocol]))
+ break;
+ if (protocol == lenof(x11_authnames))
+ continue; /* don't recognise this protocol, look for another */
+
+ switch (family) {
+ case 0: /* IPv4 */
+ if (!disp->unixdomain &&
+ sk_addrtype(disp->addr) == ADDRTYPE_IPV4) {
+ char buf[4];
+ sk_addrcopy(disp->addr, buf);
+ if (len[0] == 4 && !memcmp(str[0], buf, 4)) {
+ match = TRUE;
+ /* If this is a "localhost" entry, note it down
+ * but carry on looking for a Unix-domain entry. */
+ ideal_match = !localhost;
+ }
+ }
+ break;
+ case 6: /* IPv6 */
+ if (!disp->unixdomain &&
+ sk_addrtype(disp->addr) == ADDRTYPE_IPV6) {
+ char buf[16];
+ sk_addrcopy(disp->addr, buf);
+ if (len[0] == 16 && !memcmp(str[0], buf, 16)) {
+ match = TRUE;
+ ideal_match = !localhost;
+ }
+ }
+ break;
+ case 256: /* Unix-domain / localhost */
+ if ((disp->unixdomain || localhost)
+ && ourhostname && !strcmp(ourhostname, str[0]))
+ /* A matching Unix-domain socket is always the best
+ * match. */
+ match = ideal_match = TRUE;
+ break;
+ }
+
+ if (match) {
+ /* Current best guess -- may be overridden if !ideal_match */
+ disp->localauthproto = protocol;
+ sfree(disp->localauthdata); /* free previous guess, if any */
+ disp->localauthdata = snewn(len[3], unsigned char);
+ memcpy(disp->localauthdata, str[3], len[3]);
+ disp->localauthdatalen = len[3];
+ }
+ }
+
+ done:
+ fclose(authfp);
+ smemclr(buf, 65537 * 4);
+ sfree(buf);
+ sfree(ourhostname);
+}
+
static void x11_log(Plug p, int type, SockAddr addr, int port,
const char *error_msg, int error_code)
{
{
struct X11Private *pr = (struct X11Private *) plug;
- /*
- * We have no way to communicate down the forwarded connection,
- * so if an error occurred on the socket, we just ignore it
- * and treat it like a proper close.
- */
- sshfwd_close(pr->c);
- x11_close(pr->s);
+ if (error_msg) {
+ /*
+ * Socket error. Slam the connection instantly shut.
+ */
+ sshfwd_unclean_close(pr->c);
+ } else {
+ /*
+ * Ordinary EOF received on socket. Send an EOF on the SSH
+ * channel.
+ */
+ if (pr->c)
+ sshfwd_write_eof(pr->c);
+ }
+
return 1;
}
return atoi(display + n + 1);
}
-/* Find the right display, returns an allocated string */
-char *x11_display(const char *display) {
- char *ret;
- if(!display || !*display) {
- /* try to find platform-specific local display */
- if((ret = platform_get_x_display())==0 || !*ret)
- /* plausible default for all platforms */
- ret = dupstr(":0");
- } else
- ret = dupstr(display);
- if(ret[0] == ':') {
- /* no transport specified, use whatever we think is best */
- char *s = dupcat(platform_x11_best_transport, ret, (char *)0);
- sfree(ret);
- return s;
- } else
- return ret;
-}
-
/*
* Called to set up the raw connection.
*
* Returns an error message, or NULL on success.
* also, fills the SocketsStructure
*/
-const char *x11_init(Socket * s, char *display, void *c, void *auth,
- const char *peeraddr, int peerport, const Config *cfg)
+extern const char *x11_init(Socket *s, struct X11Display *disp, void *c,
+ const char *peeraddr, int peerport, Conf *conf)
{
static const struct plug_function_table fn_table = {
x11_log,
NULL
};
- SockAddr addr;
- int port;
const char *err;
- char *dummy_realhost;
- char host[128];
- int n, displaynum;
struct X11Private *pr;
- /* default display */
- display = x11_display(display);
- /*
- * Split up display name into host and display-number parts.
- */
- n = strcspn(display, ":");
- assert(n != 0); /* x11_display() promises this */
- if (display[n])
- displaynum = atoi(display + n + 1);
- else
- displaynum = 0; /* sensible default */
- if (n > sizeof(host) - 1)
- n = sizeof(host) - 1;
- strncpy(host, display, n);
- host[n] = '\0';
- sfree(display);
-
- if(!strcmp(host, "unix")) {
- /* use AF_UNIX sockets (doesn't make sense on all platforms) */
- addr = platform_get_x11_unix_address(displaynum,
- &dummy_realhost);
- port = 0; /* to show we are not confused */
- } else {
- port = 6000 + displaynum;
-
- /*
- * Try to find host.
- */
- addr = name_lookup(host, port, &dummy_realhost, cfg, ADDRTYPE_UNSPEC);
- if ((err = sk_addr_error(addr)) != NULL) {
- sk_addr_free(addr);
- return err;
- }
- }
-
/*
* Open socket.
*/
pr = snew(struct X11Private);
pr->fn = &fn_table;
pr->auth_protocol = NULL;
- pr->auth = (struct X11Auth *)auth;
+ pr->disp = disp;
pr->verified = 0;
pr->data_read = 0;
pr->throttled = pr->throttle_override = 0;
pr->c = c;
- pr->s = *s = new_connection(addr, dummy_realhost, port,
- 0, 1, 0, 0, (Plug) pr, cfg);
+ pr->s = *s = new_connection(sk_addr_dup(disp->addr),
+ disp->realhost, disp->port,
+ 0, 1, 0, 0, (Plug) pr, conf);
if ((err = sk_socket_error(*s)) != NULL) {
sfree(pr);
return err;
return 0;
/*
- * If we haven't verified the authentication, do so now.
+ * If we haven't verified the authorisation, do so now.
*/
if (!pr->verified) {
char *err;
pr->auth_protocol[pr->auth_plen] = '\0'; /* ASCIZ */
err = x11_verify(pr->peer_ip, pr->peer_port,
- pr->auth, pr->auth_protocol,
+ pr->disp, pr->auth_protocol,
pr->auth_data, pr->auth_dlen);
/*
- * If authentication failed, construct and send an error
+ * If authorisation failed, construct and send an error
* packet, then terminate the connection.
*/
if (err) {
int msglen, msgsize;
unsigned char *reply;
- message = dupprintf("PuTTY X11 proxy: %s", err);
+ message = dupprintf("%s X11 proxy: %s", appname, err);
msglen = strlen(message);
reply = snewn(8 + msglen+1 + 4, unsigned char); /* include zero */
msgsize = (msglen + 3) & ~3;
memset(reply + 8, 0, msgsize);
memcpy(reply + 8, message, msglen);
sshfwd_write(pr->c, (char *)reply, 8 + msgsize);
- sshfwd_close(pr->c);
- x11_close(s);
+ sshfwd_write_eof(pr->c);
sfree(reply);
sfree(message);
return 0;
{
char realauthdata[64];
int realauthlen = 0;
- int authstrlen = strlen(x11_authnames[pr->auth->realproto]);
+ int authstrlen = strlen(x11_authnames[pr->disp->localauthproto]);
int buflen = 0; /* initialise to placate optimiser */
static const char zeroes[4] = { 0,0,0,0 };
void *buf;
- if (pr->auth->realproto == X11_MIT) {
- assert(pr->auth->reallen <= lenof(realauthdata));
- realauthlen = pr->auth->reallen;
- memcpy(realauthdata, pr->auth->realdata, realauthlen);
- } else if (pr->auth->realproto == X11_XDM &&
- pr->auth->reallen == 16 &&
+ if (pr->disp->localauthproto == X11_MIT) {
+ assert(pr->disp->localauthdatalen <= lenof(realauthdata));
+ realauthlen = pr->disp->localauthdatalen;
+ memcpy(realauthdata, pr->disp->localauthdata, realauthlen);
+ } else if (pr->disp->localauthproto == X11_XDM &&
+ pr->disp->localauthdatalen == 16 &&
((buf = sk_getxdmdata(s, &buflen))!=0)) {
time_t t;
realauthlen = (buflen+12+7) & ~7;
assert(realauthlen <= lenof(realauthdata));
memset(realauthdata, 0, realauthlen);
- memcpy(realauthdata, pr->auth->realdata, 8);
+ memcpy(realauthdata, pr->disp->localauthdata, 8);
memcpy(realauthdata+8, buf, buflen);
t = time(NULL);
PUT_32BIT_MSB_FIRST(realauthdata+8+buflen, t);
- des_encrypt_xdmauth(pr->auth->realdata+9,
+ des_encrypt_xdmauth(pr->disp->localauthdata+9,
(unsigned char *)realauthdata,
realauthlen);
sfree(buf);
sk_write(s, (char *)pr->firstpkt, 12);
if (authstrlen) {
- sk_write(s, x11_authnames[pr->auth->realproto], authstrlen);
+ sk_write(s, x11_authnames[pr->disp->localauthproto],
+ authstrlen);
sk_write(s, zeroes, 3 & (-authstrlen));
}
if (realauthlen) {
return sk_write(s, data, len);
}
+
+void x11_send_eof(Socket s)
+{
+ sk_write_eof(s);
+}
projects / u / mdw / putty / blobdiff