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-rw-r--r--misc/src/common/socket.c439
1 files changed, 439 insertions, 0 deletions
diff --git a/misc/src/common/socket.c b/misc/src/common/socket.c
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--- /dev/null
+++ b/misc/src/common/socket.c
@@ -0,0 +1,439 @@
+// $Id: socket.c,v 1.1.1.1 2004/09/10 17:44:49 MagicalTux Exp $
+// original : core.c 2003/02/26 18:03:12 Rev 1.7
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+#ifdef LCCWIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <winsock2.h>
+#else
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <sys/time.h>
+#include <unistd.h>
+#endif
+
+#include <fcntl.h>
+#include <string.h>
+
+#include "mmo.h" // [Valaris] thanks to fov
+#include "socket.h"
+#include "utils.h"
+
+#ifdef MEMWATCH
+#include "memwatch.h"
+#endif
+
+fd_set readfds;
+int fd_max;
+
+int rfifo_size = 65536;
+int wfifo_size = 65536;
+
+struct socket_data *session[FD_SETSIZE];
+
+static int null_parse(int fd);
+static int (*default_func_parse)(int) = null_parse;
+
+/*======================================
+ * CORE : Set function
+ *--------------------------------------
+ */
+void set_defaultparse(int (*defaultparse)(int))
+{
+ default_func_parse = defaultparse;
+}
+
+/*======================================
+ * CORE : Socket Sub Function
+ *--------------------------------------
+ */
+
+static int recv_to_fifo(int fd)
+{
+ int len;
+
+ //printf("recv_to_fifo : %d %d\n",fd,session[fd]->eof);
+ if(session[fd]->eof)
+ return -1;
+
+
+#ifdef LCCWIN32
+ len = recv(fd,session[fd]->rdata+session[fd]->rdata_size, RFIFOSPACE(fd), 0);
+#else
+ len=read(fd,session[fd]->rdata+session[fd]->rdata_size,RFIFOSPACE(fd));
+#endif
+
+// printf (":::RECEIVE:::\n");
+// dump(session[fd]->rdata, len); printf ("\n");
+
+ //{ int i; printf("recv %d : ",fd); for(i=0;i<len;i++){ printf("%02x ",RFIFOB(fd,session[fd]->rdata_size+i)); } printf("\n");}
+ if(len>0){
+ session[fd]->rdata_size+=len;
+ } else if(len<=0){
+ // value of connection is not necessary the same
+// if (fd == 4) // Removed [Yor]
+// printf("Char-Server Has Disconnected.\n");
+// else if (fd == 5) // Removed [Yor]
+// printf("Attempt To Log In Successful.\n");
+// else if (fd == 7) // Removed [Yor]
+// printf("Char-Server Has Disconnected.\n");
+// else if (fd == 8) // Removed [Valaris]
+// printf("%s has logged off your server.\n",RFIFOP(fd,6)); // Removed [Valaris]
+
+// else if (fd != 8) // [Valaris]
+ printf("set eof : connection #%d\n", fd);
+ session[fd]->eof=1;
+ }
+ return 0;
+}
+
+static int send_from_fifo(int fd)
+{
+ int len;
+
+ //printf("send_from_fifo : %d\n",fd);
+ if(session[fd]->eof)
+ return -1;
+
+#ifdef LCCWIN32
+ len = send(fd, session[fd]->wdata,session[fd]->wdata_size, 0);
+#else
+ len=write(fd,session[fd]->wdata,session[fd]->wdata_size);
+#endif
+
+// printf (":::SEND:::\n");
+// dump(session[fd]->wdata, len); printf ("\n");
+
+ //{ int i; printf("send %d : ",fd); for(i=0;i<len;i++){ printf("%02x ",session[fd]->wdata[i]); } printf("\n");}
+ if(len>0){
+ if(len<session[fd]->wdata_size){
+ memmove(session[fd]->wdata,session[fd]->wdata+len,session[fd]->wdata_size-len);
+ session[fd]->wdata_size-=len;
+ } else {
+ session[fd]->wdata_size=0;
+ }
+ } else {
+ printf("set eof :%d\n",fd);
+ session[fd]->eof=1;
+ }
+ return 0;
+}
+
+static int null_parse(int fd)
+{
+ printf("null_parse : %d\n",fd);
+ RFIFOSKIP(fd,RFIFOREST(fd));
+ return 0;
+}
+
+/*======================================
+ * CORE : Socket Function
+ *--------------------------------------
+ */
+
+static int connect_client(int listen_fd)
+{
+ int fd;
+ struct sockaddr_in client_address;
+ int len;
+ int result;
+ int yes = 1; // reuse fix
+
+ //printf("connect_client : %d\n",listen_fd);
+
+ len=sizeof(client_address);
+
+ fd=accept(listen_fd,(struct sockaddr*)&client_address,&len);
+ if(fd_max<=fd) fd_max=fd+1;
+
+// setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,NULL,0);
+ setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,(char *)&yes,sizeof yes); // reuse fix
+#ifdef SO_REUSEPORT
+// setsockopt(fd,SOL_SOCKET,SO_REUSEPORT,NULL,0);
+ setsockopt(fd,SOL_SOCKET,SO_REUSEPORT,(char *)&yes,sizeof yes); //reuse fix
+#endif
+// setsockopt(fd,IPPROTO_TCP,TCP_NODELAY,NULL,0);
+ setsockopt(fd,IPPROTO_TCP,TCP_NODELAY,(char *)&yes,sizeof yes); // reuse fix
+
+ if(fd==-1){
+ perror("accept");
+ } else {
+ FD_SET(fd,&readfds);
+ }
+
+#ifdef LCCWIN32
+ {
+ unsigned long val = 1;
+ ioctlsocket(fd, FIONBIO, &val);
+ }
+#else
+ result = fcntl(fd, F_SETFL, O_NONBLOCK);
+#endif
+
+ CREATE(session[fd], struct socket_data, 1);
+ CREATE(session[fd]->rdata, char, rfifo_size);
+ CREATE(session[fd]->wdata, char, wfifo_size);
+
+ session[fd]->max_rdata = rfifo_size;
+ session[fd]->max_wdata = wfifo_size;
+ session[fd]->func_recv = recv_to_fifo;
+ session[fd]->func_send = send_from_fifo;
+ session[fd]->func_parse = default_func_parse;
+ session[fd]->client_addr = client_address;
+
+ //printf("new_session : %d %d\n",fd,session[fd]->eof);
+ return fd;
+}
+
+int make_listen_port(int port)
+{
+ struct sockaddr_in server_address;
+ int fd;
+ int result;
+ int yes = 1; // reuse fix
+
+ fd = socket( AF_INET, SOCK_STREAM, 0 );
+ if(fd_max<=fd) fd_max=fd+1;
+
+#ifdef LCCWIN32
+ {
+ unsigned long val = 1;
+ ioctlsocket(fd, FIONBIO, &val);
+ }
+#else
+ result = fcntl(fd, F_SETFL, O_NONBLOCK);
+#endif
+
+// setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,NULL,0);
+ setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,(char *)&yes,sizeof yes); // reuse fix
+#ifdef SO_REUSEPORT
+// setsockopt(fd,SOL_SOCKET,SO_REUSEPORT,NULL,0);
+ setsockopt(fd,SOL_SOCKET,SO_REUSEPORT,(char *)&yes,sizeof yes); //reuse fix
+#endif
+// setsockopt(fd,IPPROTO_TCP,TCP_NODELAY,NULL,0);
+ setsockopt(fd,IPPROTO_TCP,TCP_NODELAY,(char *)&yes,sizeof yes); // reuse fix
+
+ server_address.sin_family = AF_INET;
+ server_address.sin_addr.s_addr = htonl( INADDR_ANY );
+ server_address.sin_port = htons(port);
+
+ result = bind(fd, (struct sockaddr*)&server_address, sizeof(server_address));
+ if( result == -1 ) {
+ perror("bind");
+ exit(1);
+ }
+ result = listen( fd, 5 );
+ if( result == -1 ) { /* error */
+ perror("listen");
+ exit(1);
+ }
+
+ FD_SET(fd, &readfds );
+
+ CREATE(session[fd], struct socket_data, 1);
+
+ if(session[fd]==NULL){
+ printf("out of memory : make_listen_port\n");
+ exit(1);
+ }
+ memset(session[fd],0,sizeof(*session[fd]));
+ session[fd]->func_recv = connect_client;
+
+ return fd;
+}
+
+int make_connection(long ip,int port)
+{
+ struct sockaddr_in server_address;
+ int fd;
+ int result;
+ int yes = 1; // reuse fix
+
+ fd = socket( AF_INET, SOCK_STREAM, 0 );
+ if(fd_max<=fd) fd_max=fd+1;
+// setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,NULL,0);
+ setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,(char *)&yes,sizeof yes); // reuse fix
+#ifdef SO_REUSEPORT
+// setsockopt(fd,SOL_SOCKET,SO_REUSEPORT,NULL,0);
+ setsockopt(fd,SOL_SOCKET,SO_REUSEPORT,(char *)&yes,sizeof yes); //reuse fix
+#endif
+// setsockopt(fd,IPPROTO_TCP,TCP_NODELAY,NULL,0);
+ setsockopt(fd,IPPROTO_TCP,TCP_NODELAY,(char *)&yes,sizeof yes); // reuse fix
+
+ server_address.sin_family = AF_INET;
+ server_address.sin_addr.s_addr = ip;
+ server_address.sin_port = htons(port);
+
+#ifdef LCCWIN32
+ {
+ unsigned long val = 1;
+ ioctlsocket(fd, FIONBIO, &val);
+ }
+#else
+ result = fcntl(fd, F_SETFL, O_NONBLOCK);
+#endif
+
+ result = connect(fd, (struct sockaddr *)(&server_address),sizeof(struct sockaddr_in));
+
+ FD_SET(fd,&readfds);
+
+ CREATE(session[fd], struct socket_data, 1);
+ CREATE(session[fd]->rdata, char, rfifo_size);
+ CREATE(session[fd]->wdata, char, wfifo_size);
+
+ session[fd]->max_rdata = rfifo_size;
+ session[fd]->max_wdata = wfifo_size;
+ session[fd]->func_recv = recv_to_fifo;
+ session[fd]->func_send = send_from_fifo;
+ session[fd]->func_parse = default_func_parse;
+
+ return fd;
+}
+
+int delete_session(int fd)
+{
+ if(fd<0 || fd>=FD_SETSIZE)
+ return -1;
+ FD_CLR(fd,&readfds);
+ if(session[fd]){
+ if(session[fd]->rdata)
+ free(session[fd]->rdata);
+ if(session[fd]->wdata)
+ free(session[fd]->wdata);
+ if(session[fd]->session_data)
+ free(session[fd]->session_data);
+ free(session[fd]);
+ }
+ session[fd]=NULL;
+ //printf("delete_session:%d\n",fd);
+ return 0;
+}
+
+int realloc_fifo(int fd,int rfifo_size,int wfifo_size)
+{
+ struct socket_data *s=session[fd];
+ if( s->max_rdata != rfifo_size && s->rdata_size < rfifo_size){
+ RECREATE(s->rdata, char, rfifo_size);
+ s->max_rdata = rfifo_size;
+ }
+ if( s->max_wdata != wfifo_size && s->wdata_size < wfifo_size){
+ RECREATE(s->wdata, char, wfifo_size);
+ s->max_wdata = wfifo_size;
+ }
+ return 0;
+}
+
+int WFIFOSET(int fd,int len)
+{
+ struct socket_data *s=session[fd];
+ if( s->wdata_size+len+16384 > s->max_wdata ){
+ realloc_fifo(fd,s->max_rdata, s->max_wdata <<1 );
+ printf("socket: %d wdata expanded to %d bytes.\n",fd, s->max_wdata);
+ }
+ s->wdata_size=(s->wdata_size+(len)+2048 < s->max_wdata) ?
+ s->wdata_size+len : (printf("socket: %d wdata lost !!\n",fd),s->wdata_size);
+ return 0;
+}
+
+int do_sendrecv(int next)
+{
+ fd_set rfd,wfd;
+ struct timeval timeout;
+ int ret,i;
+
+ rfd=readfds;
+ FD_ZERO(&wfd);
+ for(i=0;i<fd_max;i++){
+ if(!session[i] && FD_ISSET(i,&readfds)){
+ printf("force clr fds %d\n",i);
+ FD_CLR(i,&readfds);
+ continue;
+ }
+ if(!session[i])
+ continue;
+ if(session[i]->wdata_size)
+ FD_SET(i,&wfd);
+ }
+ timeout.tv_sec = next/1000;
+ timeout.tv_usec = next%1000*1000;
+ ret = select(fd_max,&rfd,&wfd,NULL,&timeout);
+ if(ret<=0)
+ return 0;
+ for(i=0;i<fd_max;i++){
+ if(!session[i])
+ continue;
+ if(FD_ISSET(i,&wfd)){
+ //printf("write:%d\n",i);
+ if(session[i]->func_send)
+ //send_from_fifo(i);
+ session[i]->func_send(i);
+ }
+ if(FD_ISSET(i,&rfd)){
+ //printf("read:%d\n",i);
+ if(session[i]->func_recv)
+ //recv_to_fifo(i);
+ session[i]->func_recv(i);
+ }
+ }
+ return 0;
+}
+
+int do_parsepacket(void)
+{
+ int i;
+ for(i=0;i<fd_max;i++){
+ if(!session[i])
+ continue;
+ if(session[i]->rdata_size==0 && session[i]->eof==0)
+ continue;
+ if(session[i]->func_parse){
+ session[i]->func_parse(i);
+ if(!session[i])
+ continue;
+ }
+ RFIFOFLUSH(i);
+ }
+ return 0;
+}
+
+void do_socket(void)
+{
+ FD_ZERO(&readfds);
+}
+
+int RFIFOSKIP(int fd,int len)
+{
+ struct socket_data *s=session[fd];
+
+ if (s->rdata_size-s->rdata_pos-len<0) {
+ fprintf(stderr,"too many skip\n");
+ exit(1);
+ }
+
+ s->rdata_pos = s->rdata_pos+len;
+
+ return 0;
+}
+
+
+int Net_Init(void)
+{
+ #ifdef LCCWIN32
+ /* Start up the windows networking */
+ WORD version_wanted = MAKEWORD(1,1);
+ WSADATA wsaData;
+
+ if ( WSAStartup(version_wanted, &wsaData) != 0 ) {
+ printf("SYSERR: WinSock not available!\n");
+ exit(1);
+ }
+ #endif
+
+ return(0);
+}
+