vte (gtk2): apply change-scroll-region.patch (close #9688)
More info (including upstream fix):
cb07c67478/index.html (L754-L773)
Patch from: https://bug542087.bugzilla-attachments.gnome.org/attachment.cgi?id=176035
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67
pkgs/desktops/gnome-2/desktop/vte/change-scroll-region.patch
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67
pkgs/desktops/gnome-2/desktop/vte/change-scroll-region.patch
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@ -0,0 +1,67 @@
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Index: vte-0.26.0/src/vte.c
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===================================================================
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--- vte-0.26.0.orig/src/vte.c 2010-11-30 23:04:53.000000000 -0800
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+++ vte-0.26.0/src/vte.c 2010-12-07 20:05:07.865548000 -0800
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@@ -3862,6 +3862,7 @@ vte_terminal_process_incoming(VteTermina
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long wcount, start, delta;
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gboolean leftovers, modified, bottom, again;
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gboolean invalidated_text;
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+ gboolean in_scroll_region;
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GArray *unichars;
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struct _vte_incoming_chunk *chunk, *next_chunk, *achunk = NULL;
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@@ -3881,6 +3882,10 @@ vte_terminal_process_incoming(VteTermina
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cursor = screen->cursor_current;
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cursor_visible = terminal->pvt->cursor_visible;
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+ in_scroll_region = screen->scrolling_restricted
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+ && (screen->cursor_current.row >= (screen->insert_delta + screen->scrolling_region.start))
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+ && (screen->cursor_current.row <= (screen->insert_delta + screen->scrolling_region.end));
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+
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/* We should only be called when there's data to process. */
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g_assert(terminal->pvt->incoming ||
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(terminal->pvt->pending->len > 0));
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@@ -3979,6 +3984,8 @@ skip_chunk:
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* points to the first character which isn't part of this
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* sequence. */
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if ((match != NULL) && (match[0] != '\0')) {
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+ gboolean new_in_scroll_region;
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+
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/* Call the right sequence handler for the requested
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* behavior. */
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_vte_terminal_handle_sequence(terminal,
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@@ -3989,12 +3996,20 @@ skip_chunk:
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start = (next - wbuf);
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modified = TRUE;
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- /* if we have moved during the sequence handler, restart the bbox */
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+ new_in_scroll_region = screen->scrolling_restricted
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+ && (screen->cursor_current.row >= (screen->insert_delta + screen->scrolling_region.start))
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+ && (screen->cursor_current.row <= (screen->insert_delta + screen->scrolling_region.end));
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+
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+ delta = screen->scroll_delta; /* delta may have changed from sequence. */
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+
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+ /* if we have moved greatly during the sequence handler, or moved into a scroll_region
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+ * from outside it, restart the bbox */
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if (invalidated_text &&
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- (screen->cursor_current.col > bbox_bottomright.x + VTE_CELL_BBOX_SLACK ||
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- screen->cursor_current.col < bbox_topleft.x - VTE_CELL_BBOX_SLACK ||
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- screen->cursor_current.row > bbox_bottomright.y + VTE_CELL_BBOX_SLACK ||
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- screen->cursor_current.row < bbox_topleft.y - VTE_CELL_BBOX_SLACK)) {
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+ ((new_in_scroll_region && !in_scroll_region) ||
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+ (screen->cursor_current.col > bbox_bottomright.x + VTE_CELL_BBOX_SLACK ||
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+ screen->cursor_current.col < bbox_topleft.x - VTE_CELL_BBOX_SLACK ||
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+ screen->cursor_current.row > bbox_bottomright.y + VTE_CELL_BBOX_SLACK ||
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+ screen->cursor_current.row < bbox_topleft.y - VTE_CELL_BBOX_SLACK))) {
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/* Clip off any part of the box which isn't already on-screen. */
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bbox_topleft.x = MAX(bbox_topleft.x, 0);
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bbox_topleft.y = MAX(bbox_topleft.y, delta);
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@@ -4014,6 +4029,8 @@ skip_chunk:
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bbox_bottomright.x = bbox_bottomright.y = -G_MAXINT;
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bbox_topleft.x = bbox_topleft.y = G_MAXINT;
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}
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+
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+ in_scroll_region = new_in_scroll_region;
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} else
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/* Second, we have a NULL match, and next points to the very
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* next character in the buffer. Insert the character which
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@ -11,6 +11,7 @@ stdenv.mkDerivation rec {
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patches = [
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./alt.patch
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./change-scroll-region.patch
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# CVE-2012-2738
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./vte-0.28.2-limit-arguments.patch
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];
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