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author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2012-03-21 22:22:53 (GMT) |
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committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2012-03-21 22:22:53 (GMT) |
commit | 6db610bb79fd5283c600f956e518fcafb974ae8e (patch) | |
tree | a523b8d182e2349f2bfa0950f4d219e0ddd31c6c /unix | |
parent | e82ec654c94d1f0ae357d10c1e9ab6df5830b720 (diff) | |
parent | 06a17431086a4c08e2111ef5942d49759f7b3687 (diff) | |
download | tk-6db610bb79fd5283c600f956e518fcafb974ae8e.zip tk-6db610bb79fd5283c600f956e518fcafb974ae8e.tar.gz tk-6db610bb79fd5283c600f956e518fcafb974ae8e.tar.bz2 |
[Bug 2809525] Abort on overlong color name
Diffstat (limited to 'unix')
-rw-r--r-- | unix/tkUnixColor.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/unix/tkUnixColor.c b/unix/tkUnixColor.c index d3dba23..a455118 100644 --- a/unix/tkUnixColor.c +++ b/unix/tkUnixColor.c @@ -126,20 +126,6 @@ TkpGetColor( Colormap colormap = Tk_Colormap(tkwin); XColor color; TkColor *tkColPtr; - char buf[100]; - unsigned len = strlen(name); - - /* - * Make sure that we never exceed a reasonable length of color name. A - * good maximum length is 99, arbitrary, but larger than any known color - * name. [Bug 2809525] - */ - - if (len > 99) { - len = 99; - } - memcpy(buf, name, len); - buf[len] = '\0'; /* * Map from the name to a pixel value. Call XAllocNamedColor rather than @@ -150,7 +136,10 @@ TkpGetColor( if (*name != '#') { XColor screen; - if (XAllocNamedColor(display, colormap, buf, &screen, &color) != 0) { + if (strlen(name) > 99) { + /* Don't bother to parse this. [Bug 2809525]*/ + return (TkColor *) NULL; + } else if (XAllocNamedColor(display, colormap, name, &screen, &color) != 0) { DeleteStressedCmap(display, colormap); } else { /* @@ -160,13 +149,13 @@ TkpGetColor( * approximation to the desired color. */ - if (XLookupColor(display, colormap, buf, &color, &screen) == 0) { + if (XLookupColor(display, colormap, name, &color, &screen) == 0) { return NULL; } FindClosestColor(tkwin, &screen, &color); } } else { - if (TkParseColor(display, colormap, buf, &color) == 0) { + if (TkParseColor(display, colormap, name, &color) == 0) { return NULL; } if (XAllocColor(display, colormap, &color) != 0) { |