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ipchunk.c
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#include "ipchunk.h"
static int Compare(IpElement *_1, IpElement *_2)
{
if( _1 -> IpLength != _2 -> IpLength )
{
return _1 -> IpLength - _2 -> IpLength;
} else {
if( _1 -> IpLength == 4 )
{
return _1 -> Ip.Ipv4 - _2 -> Ip.Ipv4;
} else {
return memcmp(_1 -> Ip.Ipv6, _2 -> Ip.Ipv6, _1 -> IpLength);
}
}
}
int IpChunk_Init(IpChunk *ic)
{
IpElement Root;
Root.IpLength = 10;
if( Bst_Init(&(ic -> Chunk), NULL, sizeof(IpElement), (int (*)(const void *, const void *))Compare) != 0 )
{
return -1;
}
if( ExtendableBuffer_Init(&(ic -> Datas), 0, -1) != 0 )
{
Array_Free(ic -> Chunk.Nodes);
return -1;
}
return Bst_Add(&(ic -> Chunk), &Root);
}
int IpChunk_Add(IpChunk *ic, uint32_t Ip, int Type, const char *Data, uint32_t DataLength)
{
IpElement New;
New.IpLength = 4;
New.Ip.Ipv4 = Ip;
New.Type = Type;
New.DataOffset = -1;
if( Data != NULL )
{
New.DataOffset = ExtendableBuffer_Add(&(ic -> Datas), Data, DataLength);
}
return Bst_Add(&(ic -> Chunk), &New);
}
int IpChunk_Add6(IpChunk *ic, const char *Ipv6, int Type, const char *Data, uint32_t DataLength)
{
IpElement New;
New.IpLength = 16;
memcpy(New.Ip.Ipv6, Ipv6, 16);
New.Type = Type;
New.DataOffset = -1;
if( Data != NULL )
{
New.DataOffset = ExtendableBuffer_Add(&(ic -> Datas), Data, DataLength);
}
return Bst_Add(&(ic -> Chunk), &New);
}
BOOL IpChunk_Find(IpChunk *ic, uint32_t Ip, int *Type, const char **Data)
{
IpElement Key;
int32_t Result;
Key.IpLength = 4;
Key.Ip.Ipv4 = Ip;
Key.Type = 0;
Key.DataOffset = -1;
Result = Bst_Search(&(ic -> Chunk), &Key, NULL);
if( Result < 0 )
{
return FALSE;
} else {
IpElement *IpResult;
if( Type != NULL || Data != NULL )
{
IpResult = Bst_GetDataByNumber(&(ic -> Chunk), Result);
if( Type != NULL )
{
*Type = IpResult -> Type;
}
if( Data != NULL )
{
if( IpResult -> DataOffset < 0 )
{
*Data = NULL;
} else {
*Data = ExtendableBuffer_GetPositionByOffset(&(ic -> Datas), IpResult -> DataOffset);
}
}
}
return TRUE;
}
}
BOOL IpChunk_Find6(IpChunk *ic, const char *Ipv6, int *Type, const char **Data)
{
IpElement Key;
int32_t Result;
Key.IpLength = 16;
memcpy(Key.Ip.Ipv6, Ipv6, 16);
Key.Type = 0;
Key.DataOffset = -1;
Result = Bst_Search(&(ic -> Chunk), &Key, NULL);
if( Result < 0 )
{
return FALSE;
} else {
IpElement *IpResult;
if( Type != NULL || Data != NULL )
{
IpResult = Bst_GetDataByNumber(&(ic -> Chunk), Result);
if( Type != NULL )
{
*Type = IpResult -> Type;
}
if( Data != NULL )
{
if( IpResult -> DataOffset < 0 )
{
*Data = NULL;
} else {
*Data = ExtendableBuffer_GetPositionByOffset(&(ic -> Datas), IpResult -> DataOffset);
}
}
}
return TRUE;
}
}