/**
?*?default?ip2region?implementation
?*
?*?@see????????#ip2region.h
?*?@author????chenxin
?*?@date????2015-10-30
*/

#include?“ip2region.h“
#include?
#include?

/**
?*?create?a?new?ip2region?object
?*
?*?@param????dbFile?path
*/
IP2R_API?uint_t?ip2region_create（ip2region_t?ip2rObj?char?*dbFile）
{
????memset（ip2rObj?0x00?sizeof（ip2region_entry））;
????ip2rObj->headerLen?=?0;
????ip2rObj->HeaderSip?=?（uint_t?*）?IP2R_MALLOC（TOTAL_HEADER_LENGTH）;
????if?（?ip2rObj->HeaderSip?==?NULL?）?{
????????return?0;
????}

????ip2rObj->HeaderPtr?=?（uint_t?*）?IP2R_MALLOC（TOTAL_HEADER_LENGTH）;
????if?（?ip2rObj->HeaderPtr?==?NULL?）?{
????????IP2R_FREE（ip2rObj->HeaderSip）;
????????return?0;
????}

????//open?the?db?file
????ip2rObj->dbHandler?=?fopen（dbFile?“rb“）;
????if?（?ip2rObj->dbHandler?==?NULL??）?{
????????IP2R_FREE（ip2rObj->HeaderSip）;
????????IP2R_FREE（ip2rObj->HeaderPtr）;
????????//fprintf（stderr?“Fail?to?open?the?db?file?%s\n“?ip2rObj>dbFile）;
????????//exit（-1）;
????????return?0;
????}

????ip2rObj->firstIndexPtr?=?0;
????ip2rObj->lastIndexPtr??=?0;
????ip2rObj->totalBlocks???=?0;
????ip2rObj->dbBinStr??????=?NULL;

????return?1;
}

/**
?*?destroy?the?specifield?ip2region?object
?*
?*?@param????ip2region_t
*/
IP2R_API?uint_t?ip2region_destroy（ip2region_t?ip2rObj）
{
????IP2R_FREE（ip2rObj->HeaderSip）;
????ip2rObj->HeaderSip?=?NULL;
????IP2R_FREE（ip2rObj->HeaderPtr）;
????ip2rObj->HeaderPtr?=?NULL;

????//close?the?db?file?resource
????if?（?ip2rObj->dbHandler?!=?NULL?）?{
????????fclose（ip2rObj->dbHandler）;
????????ip2rObj->dbHandler?=?NULL;
????}

????//free?the?db?binary?string
????if?（?ip2rObj->dbBinStr?!=?NULL?）?{
????????IP2R_FREE（ip2rObj->dbBinStr）;
????????ip2rObj->dbBinStr?=?NULL;
????}

????return?1;
}

/**
?*?get?the?region?associated?with?the?specified?ip?address?with?the?memory?binary?search?algorithm
?*
?*?@param???ip2rObj
?*?@param???ip
?*?@param???datablock
*/
IP2R_API?uint_t?ip2region_memory_search（ip2region_t?ip2rObj?uint_t?ip?datablock_t?datablock）?
{
????int?l?h?m?p;
????uint_t?sip?eip?dptr;
????int?dataLen?dataptr;
????long?filesize;
????char?*buffer;

????if?（?ip2rObj->dbBinStr?==?NULL?）?{
????????//get?the?size?of?the?file
????????fseek（ip2rObj->dbHandler?0?SEEK_END）;
????????filesize?=?ftell（ip2rObj->dbHandler）;
????????fseek（ip2rObj->dbHandler?0?SEEK_SET）;

????????//alloc?the?buffer?size
????????ip2rObj->dbBinStr?=?IP2R_MALLOC（filesize）;
????????if?（?ip2rObj->dbBinStr?==?NULL?）?{
????????????return?0;
????????}

????????//now?read?the?whole?file
????????if?（?fread（ip2rObj->dbBinStr?filesize?1?ip2rObj->dbHandler）?!=?1?）?{
????????????return?0;
????????}

????????buffer?=?ip2rObj->dbBinStr;
????????ip2rObj->firstIndexPtr?=?getUnsignedInt（buffer?0）;
????????ip2rObj->lastIndexPtr??=?getUnsignedInt（buffer?4）;
????????ip2rObj->totalBlocks???=?（ip2rObj->lastIndexPtr-ip2rObj->firstIndexPtr）/INDEX_BLOCK_LENGTH?+?1;
????}

????l?=?0;?h?=?ip2rObj->totalBlocks;?dptr?=?0;
????while

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-07-03?12:04??ip2region-master\
?????文件?????????341??2018-07-03?12:04??ip2region-master\.gitignore
?????文件????????2264??2018-07-03?12:04??ip2region-master\CHANGES.md
?????文件??????????63??2018-07-03?12:04??ip2region-master\Cargo.toml
?????文件???????12640??2018-07-03?12:04??ip2region-master\LICENSE.md
?????文件????????4665??2018-07-03?12:04??ip2region-master\README.md
?????目錄???????????0??2018-07-03?12:04??ip2region-master\binding\
?????目錄???????????0??2018-07-03?12:04??ip2region-master\binding\c#\
?????目錄???????????0??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\
?????文件???????13380??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\DBSearcher.cs
?????文件????????1899??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\DataBlock.cs
?????文件????????1639??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\DbConfig.cs
?????文件?????????406??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\DbMakerConfigException.cs
?????文件????????1552??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\HeaderBlock.cs
?????文件?????????987??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\IP2Region.csproj
?????文件????????2527??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\IndexBlock.cs
?????文件????????4405??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region\Util.cs
?????目錄???????????0??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\
?????目錄???????????0??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\DBFile\
?????文件?????2724501??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\DBFile\ip2region.db
?????文件?????????646??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\IP2Region_ConsoleTest.csproj
?????文件????????1869??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\Program.cs
?????目錄???????????0??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\Properties\
?????目錄???????????0??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\Properties\PublishProfiles\
?????文件?????????627??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\Properties\PublishProfiles\FolderProfile.pubxml
?????文件?????????389??2018-07-03?12:04??ip2region-master\binding\c#\IP2Region_ConsoleTest\Properties\PublishProfiles\FolderProfile.pubxml.user
?????目錄???????????0??2018-07-03?12:04??ip2region-master\binding\c\
?????文件?????????506??2018-07-03?12:04??ip2region-master\binding\c\Makefile
?????文件???????11363??2018-07-03?12:04??ip2region-master\binding\c\ip2region.c
?????文件????????3484??2018-07-03?12:04??ip2region-master\binding\c\ip2region.h
?????文件????????2644??2018-07-03?12:04??ip2region-master\binding\c\testSearcher.c
............此處省略97個(gè)文件信息