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Hack to work around the rootshell.com xterm DoS problem. A better

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fix might be possible, but it's unclear whether this is a productive
strategy in the long term.

[originally from svn r495]
This commit is contained in:
Simon Tatham 2000-06-05 16:33:58 +00:00
parent 6b81798205
commit e0fac426c5
1 changed files with 15 additions and 3 deletions
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18
terminal.c
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@ -1209,7 +1209,11 @@ void term_out(void) {
*/
compatibility(VT340TEXT);
if (esc_nargs<=1 && (esc_args[0]<1 || esc_args[0]>=24)) {
request_resize (cols, def(esc_args[0], 24), 0);
unsigned int newrows = def(esc_args[0], 24);
/* Hack: prevent big-resize DoS attack. */
if (newrows > max(512, cfg.height))
newrows = max(512, cfg.height);
request_resize (cols, newrows, 0);
deselect();
}
break;
@ -1221,7 +1225,11 @@ void term_out(void) {
*/
compatibility(VT420);
if (esc_nargs==1 && esc_args[0]>=24) {
request_resize (cols, def(esc_args[0], cfg.height), 0);
unsigned int newrows = def(esc_args[0], cfg.height);
/* Hack: prevent big-resize DoS attack. */
if (newrows > max(512, cfg.height))
newrows = max(512, cfg.height);
request_resize (cols, newrows, 0);
deselect();
}
break;
@ -1232,7 +1240,11 @@ void term_out(void) {
*/
compatibility(VT340TEXT);
if (esc_nargs<=1) {
request_resize (cols, def(esc_args[0], cfg.width), 0);
unsigned int newcols = def(esc_args[0], cfg.width);
/* Hack: prevent big-resize DoS attack. */
if (newcols > max(512, cfg.width))
newcols = max(512, cfg.width);
request_resize (newcols, rows, 0);
deselect();
}
break;