1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder
#ifndef _SOCKET_H_
#define _SOCKET_H_
#include <stdio.h>
#ifdef __WIN32
#define __USE_W32_SOCKETS
#include <windows.h>
typedef long in_addr_t;
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#include <time.h>
#include "../common/malloc.h"
#include "cbasetypes.h"
extern time_t last_tick;
extern time_t stall_time;
// define declaration
#define RFIFOSPACE(fd) (session[fd]->max_rdata-session[fd]->rdata_size)
#ifdef TURBO
#define RFIFOHEAD(fd) char *rbPtr = session[fd]->rdata+session[fd]->rdata_pos
#define RFIFOP(fd,pos) (&rbPtr[pos])
#else
//Make it a comment so it does not disrupts the rest of code.
#define RFIFOHEAD(fd) //
#define RFIFOP(fd,pos) (session[fd]->rdata+session[fd]->rdata_pos+(pos))
#endif
// use function instead of macro.
#define RFIFOB(fd,pos) (*(unsigned char*)RFIFOP(fd,pos))
#define RFIFOW(fd,pos) (*(unsigned short*)RFIFOP(fd,pos))
#define RFIFOL(fd,pos) (*(unsigned long*)RFIFOP(fd,pos))
#define RFIFOREST(fd) (session[fd]->rdata_size-session[fd]->rdata_pos)
#define RFIFOFLUSH(fd) \
if(session[fd]->rdata_size == session[fd]->rdata_pos) \
{ session[fd]->rdata_size = session[fd]->rdata_pos = 0; } else { \
session[fd]->rdata_size -= session[fd]->rdata_pos; \
memmove(session[fd]->rdata, session[fd]->rdata+session[fd]->rdata_pos, session[fd]->rdata_size); \
session[fd]->rdata_pos=0; \
}
//#define RFIFOSKIP(fd,len) ((session[fd]->rdata_size-session[fd]->rdata_pos-(len)<0) ? (fprintf(stderr,"too many skip\n"),exit(1)) : (session[fd]->rdata_pos+=(len)))
#define RBUFP(p,pos) (((unsigned char*)(p))+(pos))
#define RBUFB(p,pos) (*(unsigned char*)RBUFP((p),(pos)))
#define RBUFW(p,pos) (*(unsigned short*)RBUFP((p),(pos)))
#define RBUFL(p,pos) (*(unsigned long*)RBUFP((p),(pos)))
#define WFIFOSPACE(fd) (session[fd]->max_wdata-session[fd]->wdata_size)
#ifdef TURBO
#define WFIFOHEAD(fd, x) char *wbPtr = session[fd]->wdata+session[fd]->wdata_size;
#define WFIFOP(fd,pos) (&wbPtr[pos])
#else
#define WFIFOHEAD(fd, size) { if((fd) && session[fd]->wdata_size + (size) > session[fd]->max_wdata ) realloc_writefifo(fd, size); }
#define WFIFOP(fd,pos) (session[fd]->wdata+session[fd]->wdata_size+(pos))
#endif
#define WFIFOB(fd,pos) (*(unsigned char*)WFIFOP(fd,pos))
#define WFIFOW(fd,pos) (*(unsigned short*)WFIFOP(fd,pos))
#define WFIFOL(fd,pos) (*(unsigned long*)WFIFOP(fd,pos))
// use function instead of macro.
//#define WFIFOSET(fd,len) (session[fd]->wdata_size = (session[fd]->wdata_size + (len) + 2048 < session[fd]->max_wdata) ? session[fd]->wdata_size + len : session[fd]->wdata_size)
#define WBUFP(p,pos) (((unsigned char*)(p)) + (pos))
#define WBUFB(p,pos) (*(unsigned char*)((p) + (pos)))
#define WBUFW(p,pos) (*(unsigned short*)((p) + (pos)))
#define WBUFL(p,pos) (*(unsigned long*)((p) + (pos)))
//FD_SETSIZE must be modified on the project files/Makefile, since a change here won't affect
// dependant windows libraries.
/*
#ifdef __WIN32
//The default FD_SETSIZE is kinda small for windows systems.
#ifdef FD_SETSIZE
#undef FD_SETSIZE
#endif
#define FD_SETSIZE 4096
#endif
*/
#ifdef __INTERIX
#define FD_SETSIZE 4096
#endif // __INTERIX
/* Removed Cygwin FD_SETSIZE declarations, now are directly passed on to the compiler through Makefile [Valaris] */
// Session type
enum SessionType {
SESSION_UNKNOWN = -1,
SESSION_RAW = 0,
SESSION_HTTP = 1,
//-----------------
SESSION_MAX = 2
};
// Struct declaration
struct socket_data{
unsigned char eof;
unsigned char *rdata, *wdata;
unsigned int max_rdata, max_wdata;
unsigned int rdata_size, wdata_size;
int rdata_pos;
time_t rdata_tick;
struct sockaddr_in client_addr;
int (*func_recv)(int);
int (*func_send)(int);
int (*func_parse)(int);
int (*func_console)(char*);
void* session_data;
void* session_data2;
enum SessionType type;
};
// Parse functions table
struct func_parse_table {
int (*func)(int);
int (*check)(struct socket_data *);
};
extern struct func_parse_table func_parse_table[SESSION_MAX];
// Data prototype declaration
extern struct socket_data *session[FD_SETSIZE];
extern int fd_max;
//////////////////////////////////
// some checking on sockets
extern bool session_isValid(int fd);
extern bool session_isActive(int fd);
//////////////////////////////////
// Function prototype declaration
int make_listen_port(int);
int make_listen_bind(long,int);
int make_connection(long,int);
int delete_session(int);
int realloc_fifo(int fd,unsigned int rfifo_size,unsigned int wfifo_size);
int realloc_writefifo(int fd, size_t addition);
int WFIFOSET(int fd,int len);
int RFIFOSKIP(int fd,int len);
int do_sendrecv(int next);
int do_parsepacket(void);
void do_close(int fd);
void socket_init(void);
void socket_final(void);
extern void flush_fifo(int fd);
extern void flush_fifos(void);
extern void set_nonblocking(int fd, int yes);
int start_console(void);
void set_defaultparse(int (*defaultparse)(int));
void set_defaultconsoleparse(int (*defaultparse)(char*));
//Resolves the hostname and stores the string representation of the string in ip.
//Meant to simplify calls to gethostbyname without the need of all the
//required network includes.
//hostname is the name to resolve.
//ip is an array of char[4] where the individual parts of the ip are stored (optional)
//ip_str is a char[16] where the whole ip is stored in string notation (optional)
in_addr_t resolve_hostbyname(char* hostname, unsigned char *ip, char *ip_str);
extern unsigned int addr_[16]; // ip addresses of local host (host byte order)
extern unsigned int naddr_; // # of ip addresses
#endif // _SOCKET_H_
|
