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Robert de Bath's patch: ^C ^Z and ^D send Telnet specials in terminal line

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discipline; also switching disciplines in midsession works better

[originally from svn r400]
This commit is contained in:
Simon Tatham 2000-03-11 14:03:04 +00:00
parent e01efb37f7
commit 4b3c825ec7
1 changed files with 28 additions and 9 deletions
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37
ldisc.c
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@ -53,6 +53,8 @@ static void bsb(int n) {
c_write("\010 \010", 3); c_write("\010 \010", 3);
} }
#define CTRL(x) (x^'@')
static void term_send(char *buf, int len) { static void term_send(char *buf, int len) {
while (len--) { while (len--) {
char c; char c;
@ -63,19 +65,22 @@ static void term_send(char *buf, int len) {
* ^w: delete, and output BSBs, to return to last space/nonspace * ^w: delete, and output BSBs, to return to last space/nonspace
* boundary * boundary
* ^u: delete, and output BSBs, to return to BOL * ^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 * ^r: echo "^R\n" and redraw line
* ^v: quote next char * ^v: quote next char
* ^d: if at BOL, end of file and close connection, else send line * ^d: if at BOL, end of file and close connection, else send line
* and reset to BOL * and reset to BOL
* ^m/^j: send line-plus-\r\n and reset to BOL * ^m: send line-plus-\r\n and reset to BOL
*/ */
case 8: case 127: /* backspace/delete */ case CTRL('H'): case CTRL('?'): /* backspace/delete */
if (term_buflen > 0) { if (term_buflen > 0) {
bsb(plen(term_buf[term_buflen-1])); bsb(plen(term_buf[term_buflen-1]));
term_buflen--; term_buflen--;
} }
break; break;
case 23: /* ^W delete word */ case CTRL('W'): /* delete word */
while (term_buflen > 0) { while (term_buflen > 0) {
bsb(plen(term_buf[term_buflen-1])); bsb(plen(term_buf[term_buflen-1]));
term_buflen--; term_buflen--;
@ -85,13 +90,19 @@ static void term_send(char *buf, int len) {
break; break;
} }
break; break;
case 21: /* ^U delete line */ case CTRL('U'): /* delete line */
case CTRL('C'): /* Send IP */
case CTRL('\\'): /* Quit */
case CTRL('Z'): /* Suspend */
while (term_buflen > 0) { while (term_buflen > 0) {
bsb(plen(term_buf[term_buflen-1])); bsb(plen(term_buf[term_buflen-1]));
term_buflen--; term_buflen--;
} }
if( c == CTRL('C') ) back->special (TS_IP);
if( c == CTRL('Z') ) back->special (TS_SUSP);
if( c == CTRL('\\') ) back->special (TS_ABORT);
break; break;
case 18: /* ^R redraw line */ case CTRL('R'): /* redraw line */
c_write("^R\r\n", 4); c_write("^R\r\n", 4);
{ {
int i; int i;
@ -99,18 +110,18 @@ static void term_send(char *buf, int len) {
pwrite(term_buf[i]); pwrite(term_buf[i]);
} }
break; break;
case 22: /* ^V quote next char */ case CTRL('V'): /* quote next char */
term_quotenext = TRUE; term_quotenext = TRUE;
break; break;
case 4: /* ^D logout or send */ case CTRL('D'): /* logout or send */
if (term_buflen == 0) { if (term_buflen == 0) {
/* FIXME: eof */; back->special (TS_EOF);
} else { } else {
back->send(term_buf, term_buflen); back->send(term_buf, term_buflen);
term_buflen = 0; term_buflen = 0;
} }
break; break;
case 13: case 10: /* ^M/^J send with newline */ case CTRL('M'): /* send with newline */
back->send(term_buf, term_buflen); back->send(term_buf, term_buflen);
back->send("\r\n", 2); back->send("\r\n", 2);
c_write("\r\n", 2); c_write("\r\n", 2);
@ -130,6 +141,14 @@ static void term_send(char *buf, int len) {
} }
static void simple_send(char *buf, int len) { static void simple_send(char *buf, int len) {
if( term_buflen != 0 )
{
back->send(term_buf, term_buflen);
while (term_buflen > 0) {
bsb(plen(term_buf[term_buflen-1]));
term_buflen--;
}
}
back->send(buf, len); back->send(buf, len);
} }