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Added screenlength detection using ANSI sequences

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This commit is contained in:
Michiel Broek 2006-02-06 21:16:17 +00:00
parent 2041e889f5
commit 88453c9c55
2 changed files with 62 additions and 17 deletions
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4
ChangeLog
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@ -2,6 +2,10 @@ $Id$
v0.83.12 06-Feb-2006
mbsebbs:
Added screen rows detection using ANSI sequences needed for
some terminal programs like minicom.
v0.83.11 28-Jan-2006 - 06-Feb-2006

75
mbsebbs/mbsebbs.c
View File

@ -4,7 +4,7 @@
* Purpose ...............: Main startup
*
*****************************************************************************
* Copyright (C) 1997-2005
* Copyright (C) 1997-2006
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
@ -45,6 +45,7 @@
#include "term.h"
#include "ttyio.h"
#include "openport.h"
#include "input.h"
@ -61,7 +62,8 @@ int main(int argc, char **argv)
int i, rc, Fix;
struct stat sb;
struct winsize ws;
unsigned char ch = 0;
pTTY = calloc(15, sizeof(char));
tty = ttyname(1);
@ -102,26 +104,65 @@ int main(int argc, char **argv)
Syslog(' ', " ");
Syslog(' ', "MBSEBBS v%s", VERSION);
if (ioctl(1, TIOCGWINSZ, &ws) != -1 && (ws.ws_col > 0) && (ws.ws_row > 0)) {
cols = ws.ws_col;
rows = ws.ws_row;
} else {
Syslog('b', "Could not get screensize using ioctl() call");
if (getenv("LINES") != NULL) {
rows = atoi(getenv("LINES"));
} else {
Syslog('b', "Could not get screensize from environment too");
}
/* use linux/vt.h + ioctl VT_RESIZE */
}
if ((rc = rawport()) != 0) {
WriteError("Unable to set raw mode");
Quick_Bye(MBERR_OK);;
}
PUTSTR((char *)"Loading MBSE BBS ...");
Enter(1);
if (ioctl(1, TIOCGWINSZ, &ws) != -1 && (ws.ws_col > 0) && (ws.ws_row > 0)) {
cols = ws.ws_col;
rows = ws.ws_row;
PUTSTR((char *)"Loading MBSE BBS ...");
Enter(1);
} else {
Syslog('b', "Could not get screensize using ioctl() call");
if (getenv("LINES") != NULL) {
rows = atoi(getenv("LINES"));
PUTSTR((char *)"Loading MBSE BBS ...");
Enter(1);
} else {
Syslog('b', "Could not get screensize from environment too");
/*
* Next idea borrowed from Synchronet BBS
*/
PUTSTR((char *)"\r\n"); /* Locate cursor at column 1 */
PUTSTR((char *)"\x1b[s"); /* Save cursor position (necessary for HyperTerm auto-ANSI) */
PUTSTR((char *)"\x1b[99B_"); /* locate cursor as far down as possible */
PUTSTR((char *)"\x1b[6n"); /* Get cursor position */
PUTSTR((char *)"\x1b[u"); /* Restore cursor position */
// PUTSTR((char *)"\x1b[!_"); /* RIP? */
// PUTSTR((char *)"\x1b[0t_"); /* WIP? */
// PUTSTR((char *)"\2\2?HTML?"); /* HTML? */
PUTSTR((char *)"\x1b[0m_"); /* "Normal" colors */
PUTSTR((char *)"\x1b[2J"); /* clear screen */
PUTSTR((char *)"\x1b[H"); /* home cursor */
PUTSTR((char *)"\xC"); /* clear screen (in case not ANSI) */
PUTSTR((char *)"\r"); /* Move cursor left (in case previous char printed) */
PUTSTR((char *)"Loading MBSE BBS ..."); /* Let the use think something is happening */
Enter(1);
memset(&temp, 0, sizeof(temp));
for (i = 0; i < 10; i++) {
rc = Waitchar(&ch, 200); /* 4 seconds timeout */
if (rc == 1) {
temp[i] = ch;
if (ch > 31)
Syslog('b', "detect rc=%d ch=%d ch=%c", rc, ch, ch);
else
Syslog('b', "detect rc=%d ch=%d ch=^%c", rc, ch, ch+64);
}
if (rc == TIMEOUT)
break;
}
if ((temp[0] == '\x1b') && (temp[1] == '[') && strchr(temp, ';') /*&& strchr(temp, 'R') */) {
rows = atoi(strtok(temp +2, ";"));
Syslog('b', "detected ANSI cursor position at row %d", rows);
if (rows < 24)
rows = 24;
}
}
}
if ((p = getenv("CONNECT")) != NULL)
Syslog('+', "CONNECT %s", p);