+ /*
+ * Either perform local editing, or just send characters.
+ */
+ if (EDITING) {
+ while (len--) {
+ char c;
+ c = *buf++;
+ switch (term_quotenext ? ' ' : c) {
+ /*
+ * ^h/^?: delete one char and output one BSB
+ * ^w: delete, and output BSBs, to return to last
+ * space/nonspace boundary
+ * ^u: delete, and output BSBs, to return to BOL
+ * ^c: Do a ^u then send a telnet IP
+ * ^z: Do a ^u then send a telnet SUSP
+ * ^\: Do a ^u then send a telnet ABORT
+ * ^r: echo "^R\n" and redraw line
+ * ^v: quote next char
+ * ^d: if at BOL, end of file and close connection,
+ * else send line and reset to BOL
+ * ^m: send line-plus-\r\n and reset to BOL
+ */
+ case CTRL('H'): case CTRL('?'): /* backspace/delete */
+ if (term_buflen > 0) {
+ if (ECHOING)
+ bsb(plen(term_buf[term_buflen-1]));
+ term_buflen--;
+ }
+ break;
+ case CTRL('W'): /* delete word */
+ while (term_buflen > 0) {
+ if (ECHOING)
+ bsb(plen(term_buf[term_buflen-1]));
+ term_buflen--;
+ if (term_buflen > 0 &&
+ isspace(term_buf[term_buflen-1]) &&
+ !isspace(term_buf[term_buflen]))
+ break;
+ }
+ break;
+ case CTRL('U'): /* delete line */
+ case CTRL('C'): /* Send IP */
+ case CTRL('\\'): /* Quit */
+ case CTRL('Z'): /* Suspend */
+ while (term_buflen > 0) {
+ if (ECHOING)
+ bsb(plen(term_buf[term_buflen-1]));
+ term_buflen--;
+ }
+ back->special (TS_EL);
+ if( c == CTRL('C') ) back->special (TS_IP);
+ if( c == CTRL('Z') ) back->special (TS_SUSP);
+ if( c == CTRL('\\') ) back->special (TS_ABORT);
+ break;
+ case CTRL('R'): /* redraw line */
+ if (ECHOING) {
+ int i;
+ c_write("^R\r\n", 4);
+ for (i = 0; i < term_buflen; i++)
+ pwrite(term_buf[i]);
+ }
+ break;
+ case CTRL('V'): /* quote next char */
+ term_quotenext = TRUE;
+ break;
+ case CTRL('D'): /* logout or send */
+ if (term_buflen == 0) {
+ back->special (TS_EOF);
+ } else {
+ back->send(term_buf, term_buflen);
+ term_buflen = 0;
+ }
+ break;
+ case CTRL('M'): /* send with newline */
+ if (term_buflen > 0)
+ back->send(term_buf, term_buflen);
+ if (cfg.protocol == PROT_RAW)
+ back->send("\r\n", 2);
+ else
+ back->send("\r", 1);
+ if (ECHOING)
+ c_write("\r\n", 2);
+ term_buflen = 0;
+ break;
+ default: /* get to this label from ^V handler */
+ if (term_buflen >= term_bufsiz) {
+ term_bufsiz = term_buflen + 256;
+ term_buf = saferealloc(term_buf, term_bufsiz);
+ }
+ term_buf[term_buflen++] = c;
+ if (ECHOING)
+ pwrite(c);
+ term_quotenext = FALSE;
+ break;
+ }
+ }
+ } else {
+ if( term_buflen != 0 )
+ {
+ back->send(term_buf, term_buflen);
+ while (term_buflen > 0) {
+ bsb(plen(term_buf[term_buflen-1]));
+ term_buflen--;
+ }
+ }
+ if (len > 0) {
+ if (ECHOING)
+ c_write(buf, len);
+ back->send(buf, len);
+ }