+ case TS_DATA:
+ if (c == IAC) {
+ telrcv_state = TS_IAC;
+ break;
+ }
+# if defined(TN3270)
+ if (In3270) {
+ *Ifrontp++ = c;
+ while (scc > 0) {
+ c = *sbp++ & 0377, scc--; count++;
+#if defined(ENCRYPT)
+ if (decrypt_input)
+ c = (*decrypt_input)(c);
+#endif
+ if (c == IAC) {
+ telrcv_state = TS_IAC;
+ break;
+ }
+ *Ifrontp++ = c;
+ }
+ } else
+# endif /* defined(TN3270) */
+ /*
+ * The 'crmod' hack (see following) is needed
+ * since we can't * set CRMOD on output only.
+ * Machines like MULTICS like to send \r without
+ * \n; since we must turn off CRMOD to get proper
+ * input, the mapping is done here (sigh).
+ */
+ if ((c == '\r') && my_want_state_is_dont(TELOPT_BINARY)) {
+ if (scc > 0) {
+ c = *sbp&0xff;
+#if defined(ENCRYPT)
+ if (decrypt_input)
+ c = (*decrypt_input)(c);
+#endif
+ if (c == 0) {
+ sbp++, scc--; count++;
+ /* a "true" CR */
+ TTYADD('\r');
+ } else if (my_want_state_is_dont(TELOPT_ECHO) &&
+ (c == '\n')) {
+ sbp++, scc--; count++;
+ TTYADD('\n');
+ } else {
+#if defined(ENCRYPT)
+ if (decrypt_input)
+ (*decrypt_input)(-1);
+#endif
+
+ TTYADD('\r');
+ if (crmod) {
+ TTYADD('\n');
+ }
+ }
+ } else {
+ telrcv_state = TS_CR;
+ TTYADD('\r');
+ if (crmod) {
+ TTYADD('\n');
+ }
+ }
+ } else {
+ TTYADD(c);
+ }
+ continue;
+
+ case TS_IAC:
+process_iac:
+ switch (c) {
+
+ case WILL:
+ telrcv_state = TS_WILL;
+ continue;
+
+ case WONT:
+ telrcv_state = TS_WONT;
+ continue;
+
+ case DO:
+ telrcv_state = TS_DO;
+ continue;
+
+ case DONT:
+ telrcv_state = TS_DONT;
+ continue;
+
+ case DM:
+ /*
+ * We may have missed an urgent notification,
+ * so make sure we flush whatever is in the
+ * buffer currently.
+ */
+ printoption("RCVD", IAC, DM);
+ SYNCHing = 1;
+ (void) ttyflush(1);
+ SYNCHing = stilloob();
+ settimer(gotDM);
+ break;
+
+ case SB:
+ SB_CLEAR();
+ telrcv_state = TS_SB;
+ continue;
+
+# if defined(TN3270)
+ case EOR:
+ if (In3270) {
+ if (Ibackp == Ifrontp) {
+ Ibackp = Ifrontp = Ibuf;
+ ISend = 0; /* should have been! */
+ } else {
+ Ibackp += DataFromNetwork(Ibackp, Ifrontp-Ibackp, 1);
+ ISend = 1;
+ }
+ }
+ printoption("RCVD", IAC, EOR);
+ break;
+# endif /* defined(TN3270) */
+
+ case IAC:
+# if !defined(TN3270)
+ TTYADD(IAC);
+# else /* !defined(TN3270) */
+ if (In3270) {
+ *Ifrontp++ = IAC;
+ } else {
+ TTYADD(IAC);
+ }
+# endif /* !defined(TN3270) */
+ break;
+
+ case NOP:
+ case GA:
+ default:
+ printoption("RCVD", IAC, c);
+ break;
+ }
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_WILL:
+ printoption("RCVD", WILL, c);
+ willoption(c);
+ SetIn3270();
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_WONT:
+ printoption("RCVD", WONT, c);
+ wontoption(c);
+ SetIn3270();
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_DO:
+ printoption("RCVD", DO, c);
+ dooption(c);
+ SetIn3270();
+ if (c == TELOPT_NAWS) {
+ sendnaws();
+ } else if (c == TELOPT_LFLOW) {
+ localflow = 1;
+ setcommandmode();
+ setconnmode(0);
+ }
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_DONT:
+ printoption("RCVD", DONT, c);
+ dontoption(c);
+ flushline = 1;
+ setconnmode(0); /* set new tty mode (maybe) */
+ SetIn3270();
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_SB:
+ if (c == IAC) {
+ telrcv_state = TS_SE;
+ } else {
+ SB_ACCUM(c);
+ }
+ continue;
+
+ case TS_SE:
+ if (c != SE) {
+ if (c != IAC) {
+ /*
+ * This is an error. We only expect to get
+ * "IAC IAC" or "IAC SE". Several things may
+ * have happend. An IAC was not doubled, the
+ * IAC SE was left off, or another option got
+ * inserted into the suboption are all possibilities.
+ * If we assume that the IAC was not doubled,
+ * and really the IAC SE was left off, we could
+ * get into an infinate loop here. So, instead,
+ * we terminate the suboption, and process the
+ * partial suboption if we can.
+ */
+ SB_ACCUM(IAC);
+ SB_ACCUM(c);
+ subpointer -= 2;
+ SB_TERM();
+
+ printoption("In SUBOPTION processing, RCVD", IAC, c);
+ suboption(); /* handle sub-option */
+ SetIn3270();
+ telrcv_state = TS_IAC;
+ goto process_iac;
+ }
+ SB_ACCUM(c);
+ telrcv_state = TS_SB;
+ } else {
+ SB_ACCUM(IAC);
+ SB_ACCUM(SE);
+ subpointer -= 2;
+ SB_TERM();
+ suboption(); /* handle sub-option */
+ SetIn3270();
+ telrcv_state = TS_DATA;
+ }
+ }
+ }
+ if (count)
+ ring_consumed(&netiring, count);
+ return returnValue||count;
+}
+
+static int bol = 1, local = 0;
+
+ int
+rlogin_susp()
+{
+ if (local) {
+ local = 0;
+ bol = 1;
+ command(0, "z\n", 2);
+ return(1);
+ }
+ return(0);
+}
+
+ static int
+telsnd()
+{
+ int tcc;
+ int count;
+ int returnValue = 0;
+ unsigned char *tbp;
+
+ tcc = 0;
+ count = 0;
+ while (NETROOM() > 2) {
+ register int sc;
+ register int c;
+
+ if (tcc == 0) {
+ if (count) {
+ ring_consumed(&ttyiring, count);
+ returnValue = 1;
+ count = 0;
+ }
+ tbp = ttyiring.consume;
+ tcc = ring_full_consecutive(&ttyiring);
+ if (tcc == 0) {
+ break;
+ }
+ }
+ c = *tbp++ & 0xff, sc = strip(c), tcc--; count++;
+ if (rlogin != _POSIX_VDISABLE) {
+ if (bol) {
+ bol = 0;
+ if (sc == rlogin) {
+ local = 1;
+ continue;
+ }
+ } else if (local) {
+ local = 0;
+ if (sc == '.' || c == termEofChar) {
+ bol = 1;
+ command(0, "close\n", 6);
+ continue;
+ }
+ if (sc == termSuspChar) {
+ bol = 1;
+ command(0, "z\n", 2);
+ continue;
+ }
+ if (sc == escape) {
+ command(0, (char *)tbp, tcc);
+ bol = 1;
+ count += tcc;
+ tcc = 0;
+ flushline = 1;
+ break;
+ }
+ if (sc != rlogin) {
+ ++tcc;
+ --tbp;
+ --count;
+ c = sc = rlogin;
+ }
+ }
+ if ((sc == '\n') || (sc == '\r'))
+ bol = 1;
+ } else if (sc == escape) {
+ /*
+ * Double escape is a pass through of a single escape character.
+ */
+ if (tcc && strip(*tbp) == escape) {
+ tbp++;
+ tcc--;
+ count++;
+ bol = 0;
+ } else {
+ command(0, (char *)tbp, tcc);
+ bol = 1;
+ count += tcc;
+ tcc = 0;
+ flushline = 1;
+ break;
+ }
+ } else
+ bol = 0;
+#ifdef KLUDGELINEMODE
+ if (kludgelinemode && (globalmode&MODE_EDIT) && (sc == echoc)) {
+ if (tcc > 0 && strip(*tbp) == echoc) {
+ tcc--; tbp++; count++;
+ } else {
+ dontlecho = !dontlecho;
+ settimer(echotoggle);
+ setconnmode(0);
+ flushline = 1;
+ break;
+ }
+ }
+#endif
+ if (MODE_LOCAL_CHARS(globalmode)) {
+ if (TerminalSpecialChars(sc) == 0) {
+ bol = 1;