}
}
+/*
+ * Send an appropriate SSH version string.
+ */
+static void ssh_send_verstring(Ssh ssh, char *svers)
+{
+ char *verstring;
+
+ if (ssh->version == 2) {
+ /*
+ * Construct a v2 version string.
+ */
+ verstring = dupprintf("SSH-2.0-%s\015\012", sshver);
+ } else {
+ /*
+ * Construct a v1 version string.
+ */
+ verstring = dupprintf("SSH-%s-%s\012",
+ (ssh_versioncmp(svers, "1.5") <= 0 ?
+ svers : "1.5"),
+ sshver);
+ }
+
+ ssh_fix_verstring(verstring);
+
+ if (ssh->version == 2) {
+ size_t len;
+ /*
+ * Record our version string.
+ */
+ len = strcspn(verstring, "\015\012");
+ ssh->v_c = snewn(len + 1, char);
+ memcpy(ssh->v_c, verstring, len);
+ ssh->v_c[len] = 0;
+ }
+
+ logeventf(ssh, "We claim version: %.*s",
+ strcspn(verstring, "\015\012"), verstring);
+ s_write(ssh, verstring, strlen(verstring));
+ sfree(verstring);
+}
+
static int do_ssh_init(Ssh ssh, unsigned char c)
{
struct do_ssh_init_state {
crBegin(ssh->do_ssh_init_crstate);
+ /*
+ * If the SSH version number's fixed, set it now, and if it's SSH-2,
+ * send the version string too.
+ *
+ * XXX This isn't actually early enough to be useful, since we only
+ * get here when the first incoming byte turns up.
+ */
+ if (ssh->cfg.sshprot == 0)
+ ssh->version = 1;
+ if (ssh->cfg.sshprot == 3) {
+ ssh->version = 2;
+ ssh_send_verstring(ssh, NULL);
+ }
+
/* Search for a line beginning with the string "SSH-" in the input. */
for (;;) {
if (c != 'S') goto no;
crStop(0);
}
- {
- char *verstring;
+ if (s->proto2 && (ssh->cfg.sshprot >= 2 || !s->proto1))
+ ssh->version = 2;
+ else
+ ssh->version = 1;
- if (s->proto2 && (ssh->cfg.sshprot >= 2 || !s->proto1)) {
- /*
- * Construct a v2 version string.
- */
- verstring = dupprintf("SSH-2.0-%s\015\012", sshver);
- ssh->version = 2;
- } else {
- /*
- * Construct a v1 version string.
- */
- verstring = dupprintf("SSH-%s-%s\012",
- (ssh_versioncmp(s->version, "1.5") <= 0 ?
- s->version : "1.5"),
- sshver);
- ssh->version = 1;
- }
+ logeventf(ssh, "Using SSH protocol version %d", ssh->version);
- ssh_fix_verstring(verstring);
+ /* Send the version string, if we haven't already */
+ if (ssh->cfg.sshprot != 3)
+ ssh_send_verstring(ssh, s->version);
- if (ssh->version == 2) {
- size_t len;
- /*
- * Record our version string and their version string.
- */
- len = strcspn(verstring, "\015\012");
- ssh->v_c = snewn(len + 1, char);
- memcpy(ssh->v_c, verstring, len);
- ssh->v_c[len] = 0;
- len = strcspn(s->vstring, "\015\012");
- ssh->v_s = snewn(len + 1, char);
- memcpy(ssh->v_s, s->vstring, len);
- ssh->v_s[len] = 0;
+ if (ssh->version == 2) {
+ size_t len;
+ /*
+ * Record their version string.
+ */
+ len = strcspn(s->vstring, "\015\012");
+ ssh->v_s = snewn(len + 1, char);
+ memcpy(ssh->v_s, s->vstring, len);
+ ssh->v_s[len] = 0;
- /*
- * Initialise SSH-2 protocol.
- */
- ssh->protocol = ssh2_protocol;
- ssh2_protocol_setup(ssh);
- ssh->s_rdpkt = ssh2_rdpkt;
- } else {
- /*
- * Initialise SSH-1 protocol.
- */
- ssh->protocol = ssh1_protocol;
- ssh1_protocol_setup(ssh);
- ssh->s_rdpkt = ssh1_rdpkt;
- }
- logeventf(ssh, "We claim version: %.*s",
- strcspn(verstring, "\015\012"), verstring);
- s_write(ssh, verstring, strlen(verstring));
- sfree(verstring);
- if (ssh->version == 2)
- do_ssh2_transport(ssh, NULL, -1, NULL);
+ /*
+ * Initialise SSH-2 protocol.
+ */
+ ssh->protocol = ssh2_protocol;
+ ssh2_protocol_setup(ssh);
+ ssh->s_rdpkt = ssh2_rdpkt;
+ } else {
+ /*
+ * Initialise SSH-1 protocol.
+ */
+ ssh->protocol = ssh1_protocol;
+ ssh1_protocol_setup(ssh);
+ ssh->s_rdpkt = ssh1_rdpkt;
}
-
- logeventf(ssh, "Using SSH protocol version %d", ssh->version);
+ if (ssh->version == 2)
+ do_ssh2_transport(ssh, NULL, -1, NULL);
update_specials_menu(ssh->frontend);
ssh->state = SSH_STATE_BEFORE_SIZE;