diff options
Diffstat (limited to 'library/clock.tcl')
| -rw-r--r-- | library/clock.tcl | 88 |
1 files changed, 65 insertions, 23 deletions
diff --git a/library/clock.tcl b/library/clock.tcl index 44e7d8c..f4a561d 100644 --- a/library/clock.tcl +++ b/library/clock.tcl @@ -13,7 +13,7 @@ # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # -# RCS: @(#) $Id: clock.tcl,v 1.1 2004/08/18 19:59:00 kennykb Exp $ +# RCS: @(#) $Id: clock.tcl,v 1.2 2004/08/18 20:59:33 kennykb Exp $ # #---------------------------------------------------------------------- @@ -24,7 +24,26 @@ uplevel \#0 { package require msgcat 1.4 if { $::tcl_platform(platform) eq {windows} } { - package require registry 1.1 + if { [catch { package require registry 1.1 }] } { + + # HIDEOUS KLUDGE: [package require registry 1.1] has failed. + # This failure likely means that we're running in Tcl's build + # directory instead of the install directory. We recover by + # trying to load tclreg*.dll directly. + + if { [catch { + load [lindex \ + [glob -directory \ + [file join \ + [pwd] \ + [file dirname [info nameofexecutable]]] \ + tclReg*.dll] \ + 0] registry + }] } { + # Still no registry! + namespace eval ::tcl::clock [list variable NoRegistry {}] + } + } } } @@ -2140,6 +2159,11 @@ proc ::tcl::clock::EnterLocale { locale oldLocaleVar } { proc ::tcl::clock::LoadWindowsDateTimeFormats { locale } { + # Bail out if we can't find the Registry + + variable NoRegistry + if { [info exists NoRegistry] } return + if { ![catch { registry get "HKEY_CURRENT_USER\\Control Panel\\International" \ sShortDate @@ -3144,13 +3168,12 @@ proc ::tcl::clock::SetupTimeZone { timezone } { # We couldn't parse this as a POSIX time zone. Try # again with a time zone file - this time without a colon - if { [catch { - LoadTimeZoneFile $timezone - } msg] } { - return -code error -errorcode $::errorCode $msg + if { [catch { LoadTimeZoneFile $timezone }] + && [catch { LoadZoneinfoFile $timezone }] } { + return -code error -errorcode $::errorCode \ + "time zone $timezone not found" } set TZData($timezone) $TZData(:$timezone) - } } @@ -3190,25 +3213,38 @@ proc ::tcl::clock::GuessWindowsTimeZone {} { variable SecondsPerHour variable SecondsPerMinute variable MinutesPerHour + variable NoRegistry + + if { [info exists NoRegistry] } { + return :localtime + } # Dredge time zone information out of the registry - set rpath HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\TimeZoneInformation - set data [list \ - [expr { -$SecondsPerMinute * [registry get $rpath Bias] }] \ - [expr { -$SecondsPerMinute \ - * [registry get $rpath StandardBias] }] \ - [expr { -$SecondsPerMinute \ - * [registry get $rpath DaylightBias] }]] - set stdtzi [registry get $rpath StandardStart] - foreach ind {0 2 14 4 6 8 10 12} { - binary scan $stdtzi @${ind}s val - lappend data $val - } - set daytzi [registry get $rpath DaylightStart] - foreach ind {0 2 14 4 6 8 10 12} { - binary scan $daytzi @${ind}s val - lappend data $val + if { [catch { + set rpath HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\TimeZoneInformation + set data [list \ + [expr { -$SecondsPerMinute + * [registry get $rpath Bias] }] \ + [expr { -$SecondsPerMinute \ + * [registry get $rpath StandardBias] }] \ + [expr { -$SecondsPerMinute \ + * [registry get $rpath DaylightBias] }]] + set stdtzi [registry get $rpath StandardStart] + foreach ind {0 2 14 4 6 8 10 12} { + binary scan $stdtzi @${ind}s val + lappend data $val + } + set daytzi [registry get $rpath DaylightStart] + foreach ind {0 2 14 4 6 8 10 12} { + binary scan $daytzi @${ind}s val + lappend data $val + } + }] } { + + # Missing values in the Registry - bail out + + return :localtime } # Make up a Posix time zone specifier if we can't find one @@ -3302,6 +3338,10 @@ proc ::tcl::clock::LoadTimeZoneFile { fileName } { variable DataDir variable TZData + if { [info exists TZData($fileName)] } { + return + } + # Since an unsafe interp uses the [clock] command in the master, # this code is security sensitive. Make sure that the path name # cannot escape the given directory. @@ -3318,6 +3358,7 @@ proc ::tcl::clock::LoadTimeZoneFile { fileName } { -errorcode [list CLOCK badTimeZone :$fileName] \ "time zone \":$fileName\" not found" } + return } #---------------------------------------------------------------------- @@ -3397,6 +3438,7 @@ proc ::tcl::clock::LoadZoneinfoFile { fileName } { binary scan $d @${seek}I${nTime}c${nTime} times tempCodes incr seek [expr { 5 * $nTime }] set times [linsert $times 0 $MINWIDE] + set codes {} foreach c $tempCodes { lappend codes [expr { $c & 0xff }] } |