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| author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2016-08-31 08:55:32 (GMT) |
|---|---|---|
| committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2016-08-31 08:55:32 (GMT) |
| commit | 3710a862b304ce13a5d771616b45eaa556f201bc (patch) | |
| tree | b89107a81aaee65f22938a9b9f99531a9877eefd /generic/tkEntry.c | |
| parent | b237ee23c355f68d92dccd811aa8bfd6f1ceed05 (diff) | |
| parent | 34d8945d9d1dbbb3f599cabcad75ec0305f7615d (diff) | |
| download | tk-3710a862b304ce13a5d771616b45eaa556f201bc.zip tk-3710a862b304ce13a5d771616b45eaa556f201bc.tar.gz tk-3710a862b304ce13a5d771616b45eaa556f201bc.tar.bz2 | |
Fix use of XMaxTransChars in stead of TCL_UTF_MAX in some places. This should prevent possible buffer overflow when TCL_UTF_MAX=6
Micro-optimizations in tkEntry and ttkEntry
Diffstat (limited to 'generic/tkEntry.c')
| -rw-r--r-- | generic/tkEntry.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/generic/tkEntry.c b/generic/tkEntry.c index 5681e47..a66cf18 100644 --- a/generic/tkEntry.c +++ b/generic/tkEntry.c @@ -1927,7 +1927,7 @@ EntryComputeGeometry( if (entryPtr->showChar != NULL) { Tcl_UniChar ch; - char buf[TCL_UTF_MAX]; + char buf[4]; int size; /* @@ -1945,7 +1945,8 @@ EntryComputeGeometry( entryPtr->displayString = p; for (i = entryPtr->numChars; --i >= 0; ) { - p += Tcl_UniCharToUtf(ch, p); + memcpy(p, buf, size); + p += size; } *p = '\0'; } |