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Proper upper limit for mousechar start is UCHAR_MAX - 3, not UCHAR_MAX

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PR:		24437
Submitted by:	Cejka Rudolf <cejkar@dcse.fee.vutbr.cz>
This commit is contained in:
Andrey A. Chernov 2001-04-21 13:50:32 +00:00
parent ad6931f954
commit e4ef2fa234
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=75788
1 changed files with 2 additions and 2 deletions
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4
usr.sbin/vidcontrol/vidcontrol.c
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@ -488,8 +488,8 @@ set_mouse_char(char *arg)
long l;
l = strtol(arg, NULL, 0);
if ((l < 0) || (l > UCHAR_MAX)) {
warnx("argument to -M must be 0 through %d", UCHAR_MAX);
if ((l < 0) || (l > UCHAR_MAX - 3)) {
warnx("argument to -M must be 0 through %d", UCHAR_MAX - 3);
return;
}
mouse.operation = MOUSE_MOUSECHAR;