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Handle date formatting for Windows for years earlier than 1970. See #2136

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dmiller
2020-10-08 23:09:21 +00:00
parent e3262d33d6
commit 50bef20b92
3 changed files with 32 additions and 39 deletions
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40
nselib/mssql.lua
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@@ -106,7 +106,7 @@
local math = require "math"
local match = require "match"
local nmap = require "nmap"
local os = require "os"
local datetime = require "datetime"
local shortport = require "shortport"
local smb = require "smb"
local smbauth = require "smbauth"
@@ -156,6 +156,8 @@ do
end
end
-- This constant is number of seconds from 1900-01-01 to 1970-01-01
local tds_offset_seconds = -2208988800 + datetime.system_time_at_epoch
-- *************************************
-- Informational Classes
@@ -1231,19 +1233,13 @@ ColumnData =
end,
[DataTypes.SYBDATETIME] = function( data, pos )
local hi, lo, result_seconds, result
local tds_epoch, system_epoch, tds_offset_seconds
local hi, lo
hi, lo, pos = string.unpack("<i4I4", data, pos)
tds_epoch = os.time( {year = 1900, month = 1, day = 1, hour = 00, min = 00, sec = 00, isdst = nil} )
-- determine the offset between the tds_epoch and the local system epoch
system_epoch = os.time( os.date("*t", 0))
tds_offset_seconds = os.difftime(tds_epoch,system_epoch)
local result_seconds = (hi*24*60*60) + (lo/300)
result_seconds = (hi*24*60*60) + (lo/300)
result = os.date("!%b %d, %Y %H:%M:%S", tds_offset_seconds + result_seconds )
local result = datetime.format_timestamp(tds_offset_seconds + result_seconds)
return pos, result
end,
@@ -1311,23 +1307,6 @@ ColumnData =
return ColumnData.Parse[DataTypes.DECIMALNTYPE]( precision, scale, data, pos )
end,
[DataTypes.SYBDATETIME] = function( data, pos )
local hi, lo, result_seconds, result
local tds_epoch, system_epoch, tds_offset_seconds
hi, lo, pos = string.unpack("<i4I4", data, pos)
tds_epoch = os.time( {year = 1900, month = 1, day = 1, hour = 00, min = 00, sec = 00, isdst = nil} )
-- determine the offset between the tds_epoch and the local system epoch
system_epoch = os.time( os.date("*t", 0))
tds_offset_seconds = os.difftime(tds_epoch,system_epoch)
result_seconds = (hi*24*60*60) + (lo/300)
result = os.date("!%b %d, %Y %H:%M:%S", tds_offset_seconds + result_seconds )
return pos, result
end,
[DataTypes.BITNTYPE] = function( data, pos )
return ColumnData.Parse[DataTypes.SYBINTN](data, pos)
end,
@@ -1406,13 +1385,8 @@ ColumnData =
local days, mins
days, mins, pos = string.unpack("<I2I2", data, pos)
local tds_epoch = os.time( {year = 1900, month = 1, day = 1, hour = 00, min = 00, sec = 00, isdst = nil} )
-- determine the offset between the tds_epoch and the local system epoch
local system_epoch = os.time( os.date("*t", 0))
local tds_offset_seconds = os.difftime(tds_epoch,system_epoch)
local result_seconds = (days*24*60*60) + (mins*60)
coldata = os.date("!%b %d, %Y %H:%M:%S", tds_offset_seconds + result_seconds )
coldata = datetime.format_timestamp(tds_offset_seconds + result_seconds)
return pos,coldata