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Fixed major bug: drivers that accepted size arguments could wind

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up with more than 80 characters (20x4) in their display, and thus
overwrite memory outside of the allocated 80 characterwframebuffer.

For example, using a 20x6 screen would do this.

All drivers now either ignore a missing framebuffer, or allocate it
themselves - the latter is prefered.
This commit is contained in:
ddouthitt
2001-09-27 23:46:55 +00:00
parent 71c3035611
commit 74153173c1
9 changed files with 16 additions and 57 deletions
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server/drivers/text.c
-6
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@@ -38,12 +38,6 @@ text_init (lcd_logical_driver * driver, char *args)
{
text = driver;
if (!text->framebuf) {
syslog(LOG_ERR, "text: no frame buffer!");
text_close ();
return -1;
}
text->wid = LCD_DEFAULT_WIDTH;
text->hgt = LCD_DEFAULT_HEIGHT;
text->cellwid = LCD_DEFAULT_CELL_WIDTH;