#ifndef NESSUS_TCP_H__ #define NESSUS_TCP_H__ #ifdef HAVE_NETINET_TCP_H #include <netinet/tcp.h> #endif #ifdef _CYGWIN_ #define tcp_seq u_int #endif #if !defined(HAVE_STRUCT_TCPHDR) || (HAVE_STRUCT_TCPHDR == 0) #undef HAVE_TCPHDR_TH_X2_OFF #undef HAVE_TCPHDR_TH_OFF #define HAVE_TCPHDR_TH_OFF 1 #define HAVE_STRUCT_TCPHDR 1 struct tcphdr { u_short th_sport; /* source port */ u_short th_dport; /* destination port */ tcp_seq th_seq; /* sequence number */ tcp_seq th_ack; /* acknowledgement number */ #if !WORDS_BIGENDIAN u_int th_x2:4, /* (unused) */ th_off:4; /* data offset */ #endif #if WORDS_BIGENDIAN u_int th_off:4, /* data offset */ th_x2:4; /* (unused) */ #endif u_char th_flags; u_short th_win; /* window */ u_short th_sum; /* checksum */ u_short th_urp; /* urgent pointer */ }; #endif #ifndef TH_FIN #define TH_FIN 0x01 #endif #ifndef TH_SYN #define TH_SYN 0x02 #endif #ifndef TH_RST #define TH_RST 0x04 #endif #ifndef TH_PUSH #define TH_PUSH 0x08 #endif #ifndef TH_ACK #define TH_ACK 0x10 #endif #ifndef TH_URG #define TH_URG 0x20 #endif #ifndef TH_FLAGS #define TH_FLAGS (TH_FIN|TH_SYN|TH_RST|TH_ACK|TH_URG) #endif #endif