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| author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2017-01-03 13:05:16 (GMT) |
|---|---|---|
| committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2017-01-03 13:05:16 (GMT) |
| commit | 321ce1ff697e622efe2530f8ab09c1eddc7b7863 (patch) | |
| tree | 226e34ef559fa313018518f4016b76988df5c2cd /generic/tkCanvUtil.c | |
| parent | 2c9a8448684abb15832a5d3a4669ef51a47a49e9 (diff) | |
| download | tk-321ce1ff697e622efe2530f8ab09c1eddc7b7863.zip tk-321ce1ff697e622efe2530f8ab09c1eddc7b7863.tar.gz tk-321ce1ff697e622efe2530f8ab09c1eddc7b7863.tar.bz2 | |
Fix [f325020623898d6afe8bb73276459a922003c077|f325020623]: Tk crashes when drawing many dashed objects
Diffstat (limited to 'generic/tkCanvUtil.c')
| -rw-r--r-- | generic/tkCanvUtil.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/generic/tkCanvUtil.c b/generic/tkCanvUtil.c index b4d0c3b..08aeab7 100644 --- a/generic/tkCanvUtil.c +++ b/generic/tkCanvUtil.c @@ -1134,7 +1134,9 @@ Tk_ConfigOutlineGC( if (mask && (dash->number != 0)) { gcValues->line_style = LineOnOffDash; gcValues->dash_offset = outline->offset; - if (dash->number > 0) { + if ((unsigned int)ABS(dash->number) > sizeof(char *)) { + gcValues->dashes = dash->pattern.pt[0]; + } else if (dash->number != 0) { gcValues->dashes = dash->pattern.array[0]; } else { gcValues->dashes = (char) (4 * width + 0.5); @@ -1338,7 +1340,9 @@ Tk_ResetOutlineGC( if ((dash->number > 2) || (dash->number < -1) || (dash->number==2 && (dash->pattern.array[0] != dash->pattern.array[1])) || ((dash->number == -1) && (dash->pattern.array[0] != ','))) { - if (dash->number > 0) { + if ((unsigned int)ABS(dash->number) > sizeof(char *)) { + dashList = dash->pattern.pt[0]; + } else if (dash->number != 0) { dashList = dash->pattern.array[0]; } else { dashList = (char) (4 * width + 0.5); |