tcp - STL comparator for Session Management -


i trying find total number of session in captured *.pcap file structure 

struct sessionmanager{     unsigned short int src_port;     unsigned short int dest_port;     unsigned char protocol;     unsigned short int ip_ver;     unsigned int srcip4addr;     unsigned int destip4addr;     char srcip6addr[16];     char destip6addr[16];     unsigned int seqnumber; };

and these wrote compare function

comparator

if(a->protocol <b->protocol)     return true; else if(a->protocol==b->protocol)     if(a->ip_ver<b->ip_ver)         return true;     else if(a->ip_ver==b->ip_ver)         if(a->src_port<b->src_port)             return true;         else if(a->src_port==b->src_port)             if(a->dest_port<b->dest_port)                 return true;             else if(a->dest_port==b->dest_port)                 if((a->ip_ver==4))                 {                     if((a->srcip4addr<b->srcip4addr))                         return true;                     else if((a->srcip4addr==b->srcip4addr))                          if(a->destip4addr<b->destip4addr)                             return true;                 }                 else if(a->ip_ver==6)                 {                     if(cmp(a->srcip6addr,b->srcip6addr)==-1)                         return true;                     else if(cmp(a->srcip6addr,b->srcip6addr)==0)                     {                         if(cmp(a->destip6addr,b->destip6addr)==-1)                             return true;                         else if(cmp(a->destip6addr,b->destip6addr)==0)                             if(a->src_port<b->src_port)                                 return true;                             else if(a->src_port==b->src_port)                                 if(a->dest_port<b->dest_port)                                     return true;                                 if(a->dest_port==b->dest_port)                                     return false;                     }                  } return false;

its working fine ipv4 not working ipv6 i've created separate method string comparison


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