maride/guacamole-spice-protocol
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Check write location on rect operations (copy, etc.)

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This commit is contained in:
Michael Jumper 2013-04-08 00:14:25 -07:00
parent 342824914a
commit 7897be9316
1 changed files with 28 additions and 19 deletions
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47
protocols/ssh/src/terminal.c
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@ -417,23 +417,28 @@ int guac_terminal_copy(guac_terminal* term,
int scrolled_rows = rows;
/* Adjust delta rect height if scrolled out of view */
if (scrolled_src_row + scrolled_rows > term->delta->height)
scrolled_rows = term->delta->height - scrolled_src_row;
if (scrolled_dst_row + scrolled_rows > term->delta->height)
scrolled_rows = term->delta->height - scrolled_dst_row;
/* FIXME: If source (but not dest) is partially scrolled out of view, then
* the delta will not be updated properly. We need to pull the data
* from the buffer in such a case.
*/
/* Update delta */
guac_terminal_delta_copy(term->delta,
scrolled_dst_row, dst_col,
scrolled_src_row, src_col,
cols, rows);
if (scrolled_src_row < term->delta->height &&
scrolled_dst_row < term->delta->height) {
/* Adjust delta rect height if scrolled out of view */
if (scrolled_src_row + scrolled_rows > term->delta->height)
scrolled_rows = term->delta->height - scrolled_src_row;
if (scrolled_dst_row + scrolled_rows > term->delta->height)
scrolled_rows = term->delta->height - scrolled_dst_row;
/* Update delta */
guac_terminal_delta_copy(term->delta,
scrolled_dst_row, dst_col,
scrolled_src_row, src_col,
cols, rows);
}
/* Update buffer */
guac_terminal_buffer_copy(term->buffer,
@ -452,18 +457,22 @@ int guac_terminal_clear(guac_terminal* term,
int scrolled_row = row + term->scroll_offset;
int scrolled_rows = rows;
/* Adjust delta rect height if scrolled out of view */
if (scrolled_row + scrolled_rows > term->delta->height)
scrolled_rows = term->delta->height - scrolled_row;
/* Build space */
guac_terminal_char character;
character.value = ' ';
character.attributes = term->current_attributes;
/* Fill with color */
guac_terminal_delta_set_rect(term->delta,
scrolled_row, col, cols, scrolled_rows, &character);
if (scrolled_row < term->delta->height) {
/* Adjust delta rect height if scrolled out of view */
if (scrolled_row + scrolled_rows > term->delta->height)
scrolled_rows = term->delta->height - scrolled_row;
/* Fill with color */
guac_terminal_delta_set_rect(term->delta,
scrolled_row, col, cols, scrolled_rows, &character);
}
guac_terminal_buffer_set_rect(term->buffer,
row, col, cols, rows, &character);