extern int net_socket(int type)
{
int sock;
int val;
int ipproto;
if (type==PSOCK_SOCK_STREAM) {
ipproto = PSOCK_IPPROTO_TCP;
} else {
ipproto = PSOCK_IPPROTO_UDP;
}
if ((sock=psock_socket(PSOCK_PF_INET, type, ipproto))<0) {
eventlog(eventlog_level_error,__FUNCTION__,"error creating socket (psock_socket: %s)", pstrerror(psock_errno()));
return -1;
}
val=1;
if (psock_setsockopt(sock,PSOCK_SOL_SOCKET, PSOCK_SO_KEEPALIVE, &val, sizeof(val))<0) {
eventlog(eventlog_level_error,__FUNCTION__,"error set socket option KEEPALIVE (psock_setsockopt: %s)",pstrerror(psock_errno()));
}
if (psock_ctl(sock,PSOCK_NONBLOCK)<0) {
eventlog(eventlog_level_error,__FUNCTION__,"error set socket mode to non-block (psock_ctl: %s)",pstrerror(psock_errno()));
psock_close(sock);
return -1;
}
return sock;
}
int socket(int domain, int type, int protocol)
{
FAR struct socket *psock;
int sockfd;
int ret;
/* Allocate a socket descriptor */
sockfd = sockfd_allocate(0);
if (sockfd < 0)
{
set_errno(ENFILE);
return ERROR;
}
/* Get the underlying socket structure */
psock = sockfd_socket(sockfd);
if (!psock)
{
set_errno(ENOSYS); /* should not happen */
goto errout;
}
/* Initialize the socket structure */
ret = psock_socket(domain, type, protocol, psock);
if (ret < 0)
{
/* Error already set by psock_socket() */
goto errout;
}
return sockfd;
errout:
sockfd_release(sockfd);
return ERROR;
}
extern int net_listen(unsigned int ip, unsigned int port, int type)
{
int sock;
int val;
struct sockaddr_in addr;
int ipproto;
if (type==PSOCK_SOCK_STREAM) {
ipproto = PSOCK_IPPROTO_TCP;
} else {
ipproto = PSOCK_IPPROTO_UDP;
}
if ((sock=psock_socket(PSOCK_PF_INET, type, ipproto))<0) {
eventlog(eventlog_level_error,__FUNCTION__,"error create listen socket");
return -1;
}
val=1;
if (psock_setsockopt(sock,PSOCK_SOL_SOCKET,PSOCK_SO_REUSEADDR,&val,sizeof(int))<0) {
eventlog(eventlog_level_error,__FUNCTION__,"error set socket option SO_REUSEADDR");
}
std::memset(&addr,0,sizeof(addr));
addr.sin_family=PSOCK_AF_INET;
addr.sin_port=htons(port);
addr.sin_addr.s_addr=htonl(ip);
if (psock_bind(sock,(struct sockaddr *)&addr, sizeof(addr))<0) {
eventlog(eventlog_level_error,__FUNCTION__,"error bind listen socket");
psock_close(sock);
return -1;
}
if (psock_listen(sock,LISTEN_QUEUE)<0) {
eventlog(eventlog_level_error,__FUNCTION__,"error listen socket");
psock_close(sock);
return -1;
}
return sock;
}
/* FIXME: No it doesn't! pcAddress is not ever referenced in this
* function.
* CreepLord: Fixed much better way (will accept dns hostnames)
*/
int dbs_server_init(void)
{
int sd;
struct sockaddr_in sinInterface;
int val;
t_addr * servaddr;
dbs_server_connection_list=list_create();
if (d2dbs_d2ladder_init()==-1)
{
eventlog(eventlog_level_error,__FUNCTION__,"d2ladder_init() failed");
return -1;
}
if (cl_init(DEFAULT_HASHTBL_LEN, DEFAULT_GS_MAX)==-1)
{
eventlog(eventlog_level_error,__FUNCTION__,"cl_init() failed");
return -1;
}
if (psock_init()<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"psock_init() failed");
return -1;
}
sd = psock_socket(PSOCK_PF_INET, PSOCK_SOCK_STREAM, PSOCK_IPPROTO_TCP);
if (sd==-1)
{
eventlog(eventlog_level_error,__FUNCTION__,"psock_socket() failed : %s",strerror(psock_errno()));
return -1;
}
val = 1;
if (psock_setsockopt(sd, PSOCK_SOL_SOCKET, PSOCK_SO_REUSEADDR, &val, sizeof(val)) < 0)
{
eventlog(eventlog_level_error,__FUNCTION__,"psock_setsockopt() failed : %s",strerror(psock_errno()));
}
if (!(servaddr=addr_create_str(d2dbs_prefs_get_servaddrs(),INADDR_ANY,DEFAULT_LISTEN_PORT)))
{
eventlog(eventlog_level_error,__FUNCTION__,"could not get servaddr");
return -1;
}
sinInterface.sin_family = PSOCK_AF_INET;
sinInterface.sin_addr.s_addr = htonl(addr_get_ip(servaddr));
sinInterface.sin_port = htons(addr_get_port(servaddr));
if (psock_bind(sd, (struct sockaddr*)&sinInterface, (psock_t_socklen)sizeof(struct sockaddr_in)) < 0)
{
eventlog(eventlog_level_error,__FUNCTION__,"psock_bind() failed : %s",strerror(psock_errno()));
return -1;
}
if (psock_listen(sd, LISTEN_QUEUE) < 0)
{
eventlog(eventlog_level_error,__FUNCTION__,"psock_listen() failed : %s",strerror(psock_errno()));
return -1;
}
addr_destroy(servaddr);
return sd;
}
extern int main(int argc, char * argv[])
{
int sockfd;
if (argc<1 || !argv || !argv[0])
{
fprintf(stderr,"bad arguments\n");
return STATUS_FAILURE;
}
getprefs(argc,argv);
if (!prefs.debug)
eventlog_del_level("debug");
if (prefs.logfile)
{
eventlog_set(stderr);
if (eventlog_open(prefs.logfile)<0)
{
eventlog(eventlog_level_fatal,__FUNCTION__,"could not use file \"%s\" for the eventlog (exiting)",prefs.logfile);
return STATUS_FAILURE;
}
}
#ifdef DO_DAEMONIZE
if (!prefs.foreground)
{
switch (fork())
{
case -1:
eventlog(eventlog_level_error,__FUNCTION__,"could not fork (fork: %s)\n",pstrerror(errno));
return STATUS_FAILURE;
case 0: /* child */
break;
default: /* parent */
return STATUS_SUCCESS;
}
close(STDINFD);
close(STDOUTFD);
close(STDERRFD);
# ifdef HAVE_SETPGID
if (setpgid(0,0)<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not create new process group (setpgid: %s)\n",pstrerror(errno));
return STATUS_FAILURE;
}
# else
# ifdef HAVE_SETPGRP
# ifdef SETPGRP_VOID
if (setpgrp()<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not create new process group (setpgrp: %s)\n",pstrerror(errno));
return STATUS_FAILURE;
}
# else
if (setpgrp(0,0)<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not create new process group (setpgrp: %s)\n",pstrerror(errno));
return STATUS_FAILURE;
}
# endif
# else
# ifdef HAVE_SETSID
if (setsid()<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not create new process group (setsid: %s)\n",pstrerror(errno));
return STATUS_FAILURE;
}
# else
# error "One of setpgid(), setpgrp(), or setsid() is required"
# endif
# endif
# endif
}
#endif
if (prefs.pidfile)
{
#ifdef HAVE_GETPID
FILE * fp;
if (!(fp = fopen(prefs.pidfile,"w")))
{
eventlog(eventlog_level_error,__FUNCTION__,"unable to open pid file \"%s\" for writing (fopen: %s)",prefs.pidfile,pstrerror(errno));
prefs.pidfile = NULL;
}
else
{
fprintf(fp,"%u",(unsigned int)getpid());
if (fclose(fp)<0)
eventlog(eventlog_level_error,__FUNCTION__,"could not close pid file \"%s\" after writing (fclose: %s)",prefs.pidfile,pstrerror(errno));
}
#else
eventlog(eventlog_level_warn,__FUNCTION__,"no getpid() system call, do not use the -P or the --pidfile option");
prefs.pidfile = NULL;
#endif
}
#ifdef HAVE_GETPID
eventlog(eventlog_level_info,__FUNCTION__,"bntrackd version "PVPGN_VERSION" process %u",(unsigned int)getpid());
#else
eventlog(eventlog_level_info,__FUNCTION__,"bntrackd version "PVPGN_VERSION);
#endif
if (psock_init()<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not initialize socket functions");
return STATUS_FAILURE;
}
/* create the socket */
if ((sockfd = psock_socket(PSOCK_PF_INET,PSOCK_SOCK_DGRAM,PSOCK_IPPROTO_UDP))<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not create UDP listen socket (psock_socket: %s)\n",pstrerror(psock_errno()));
return STATUS_FAILURE;
}
{
struct sockaddr_in servaddr;
/* bind the socket to correct port and interface */
memset(&servaddr,0,sizeof(servaddr));
servaddr.sin_family = PSOCK_AF_INET;
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
servaddr.sin_port = htons(prefs.port);
if (psock_bind(sockfd,(struct sockaddr *)&servaddr,sizeof(servaddr))<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not bind to UDP port %hu (psock_bind: %s)\n",prefs.port,pstrerror(psock_errno()));
return STATUS_FAILURE;
}
}
if (server_process(sockfd)<0)
return STATUS_FAILURE;
return STATUS_SUCCESS;
}
int rpcclnt_connect(struct rpcclnt *rpc)
{
struct socket *so;
int error;
struct sockaddr *saddr;
struct sockaddr_in sin;
struct sockaddr_in *sa;
union
{
struct rpc_call_pmap sdata;
struct rpc_call_mount mountd;
} request;
union
{
struct rpc_reply_pmap rdata;
struct rpc_reply_mount mdata;
} response;
struct timeval tv;
uint16_t tport;
int errval;
fvdbg("Connecting\n");
/* Create the socket */
saddr = rpc->rc_name;
/* Create an instance of the socket state structure */
so = (struct socket *)kmm_zalloc(sizeof(struct socket));
if (!so)
{
fdbg("ERROR: Failed to allocate socket structure\n");
return ENOMEM;
}
error = psock_socket(saddr->sa_family, rpc->rc_sotype, IPPROTO_UDP, so);
if (error < 0)
{
errval = get_errno();
fdbg("ERROR: psock_socket failed: %d", errval);
return error;
}
so->s_crefs = 1;
rpc->rc_so = so;
/* Always set receive timeout to detect server crash and reconnect.
* Otherwise, we can get stuck in psock_receive forever.
*/
tv.tv_sec = 1;
tv.tv_usec = 0;
error = psock_setsockopt(rpc->rc_so, SOL_SOCKET, SO_RCVTIMEO,
(const void *)&tv, sizeof(tv));
if (error < 0)
{
errval = get_errno();
fdbg("ERROR: psock_setsockopt failed: %d\n", errval);
goto bad;
}
/* Some servers require that the client port be a reserved port
* number. We always allocate a reserved port, as this prevents
* filehandle disclosure through UDP port capture.
*/
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = INADDR_ANY;
tport = 1024;
errval = 0;
do
{
tport--;
sin.sin_port = htons(tport);
error = psock_bind(rpc->rc_so, (struct sockaddr *)&sin, sizeof(sin));
if (error < 0)
{
errval = get_errno();
fdbg("ERROR: psock_bind failed: %d\n", errval);
}
}
while (errval == EADDRINUSE && tport > 1024 / 2);
if (error)
{
fdbg("ERROR: psock_bind failed: %d\n", errval);
goto bad;
}
/* Protocols that do not require connections may be optionally left
* unconnected for servers that reply from a port other than
* NFS_PORT.
*/
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
if (error < 0)
{
errval = get_errno();
fdbg("ERROR: psock_connect to PMAP port failed: %d", errval);
goto bad;
}
/* Do the RPC to get a dynamic bounding with the server using ppmap.
* Get port number for MOUNTD.
*/
request.sdata.pmap.prog = txdr_unsigned(RPCPROG_MNT);
request.sdata.pmap.vers = txdr_unsigned(RPCMNT_VER1);
request.sdata.pmap.proc = txdr_unsigned(IPPROTO_UDP);
request.sdata.pmap.port = 0;
error = rpcclnt_request(rpc, PMAPPROC_GETPORT, PMAPPROG, PMAPVERS,
(FAR void *)&request.sdata, sizeof(struct call_args_pmap),
(FAR void *)&response.rdata, sizeof(struct rpc_reply_pmap));
if (error != 0)
{
fdbg("ERROR: rpcclnt_request failed: %d\n", error);
goto bad;
}
sa = (FAR struct sockaddr_in *)saddr;
sa->sin_port = htons(fxdr_unsigned(uint32_t, response.rdata.pmap.port));
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
if (error < 0)
{
errval = get_errno();
fdbg("ERROR: psock_connect MOUNTD port failed: %d\n", errval);
goto bad;
}
/* Do RPC to mountd. */
strncpy(request.mountd.mount.rpath, rpc->rc_path, 90);
request.mountd.mount.len = txdr_unsigned(sizeof(request.mountd.mount.rpath));
error = rpcclnt_request(rpc, RPCMNT_MOUNT, RPCPROG_MNT, RPCMNT_VER1,
(FAR void *)&request.mountd, sizeof(struct call_args_mount),
(FAR void *)&response.mdata, sizeof(struct rpc_reply_mount));
if (error != 0)
{
fdbg("ERROR: rpcclnt_request failed: %d\n", error);
goto bad;
}
error = fxdr_unsigned(uint32_t, response.mdata.mount.status);
if (error != 0)
{
fdbg("ERROR: Bad mount status: %d\n", error);
goto bad;
}
memcpy(&rpc->rc_fh, &response.mdata.mount.fhandle, sizeof(nfsfh_t));
/* Do the RPC to get a dynamic bounding with the server using PMAP.
* NFS port in the socket.
*/
sa->sin_port = htons(PMAPPORT);
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
if (error < 0)
{
errval = get_errno();
fdbg("ERROR: psock_connect PMAP port failed: %d\n", errval);
goto bad;
}
request.sdata.pmap.prog = txdr_unsigned(NFS_PROG);
request.sdata.pmap.vers = txdr_unsigned(NFS_VER3);
request.sdata.pmap.proc = txdr_unsigned(IPPROTO_UDP);
request.sdata.pmap.port = 0;
error = rpcclnt_request(rpc, PMAPPROC_GETPORT, PMAPPROG, PMAPVERS,
(FAR void *)&request.sdata, sizeof(struct call_args_pmap),
(FAR void *)&response.rdata, sizeof(struct rpc_reply_pmap));
if (error != 0)
{
fdbg("ERROR: rpcclnt_request failed: %d\n", error);
goto bad;
}
sa->sin_port = htons(fxdr_unsigned(uint32_t, response.rdata.pmap.port));
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
if (error)
{
fdbg("psock_connect NFS port returns %d\n", error);
goto bad;
}
return OK;
bad:
rpcclnt_disconnect(rpc);
return error;
}
extern int main(int argc, char * argv[])
{
int a;
int sd;
struct sockaddr_in saddr;
t_packet * packet;
t_packet * rpacket;
t_packet * fpacket;
char const * clienttag=NULL;
char const * archtag=NULL;
char const * servname=NULL;
unsigned short servport=0;
char const * hexfile=NULL;
char text[MAX_MESSAGE_LEN];
char const * reqfile=NULL;
struct hostent * host;
unsigned int commpos;
struct termios in_attr_old;
struct termios in_attr_new;
int changed_in;
unsigned int currsize;
unsigned int filelen;
unsigned int startoffset;
int startoffsetoverride=0;
#define EXIST_ACTION_UNSPEC -1
#define EXIST_ACTION_ASK 0
#define EXIST_ACTION_OVERWRITE 1
#define EXIST_ACTION_BACKUP 2
#define EXIST_ACTION_RESUME 3
int exist_action=EXIST_ACTION_UNSPEC;
struct stat exist_buf;
char const * filename;
FILE * fp;
FILE * hexstrm=NULL;
int fd_stdin;
t_bnettime bntime;
time_t tm;
char timestr[FILE_TIME_MAXLEN];
unsigned int screen_width,screen_height;
int munged;
if (argc<1 || !argv || !argv[0])
{
fprintf(stderr,"bad arguments\n");
return STATUS_FAILURE;
}
for (a=1; a<argc; a++)
if (servname && isdigit((int)argv[a][0]) && a+1>=argc)
{
if (str_to_ushort(argv[a],&servport)<0)
{
fprintf(stderr,"%s: \"%s\" should be a positive integer\n",argv[0],argv[a]);
usage(argv[0]);
}
}
else if (!servname && argv[a][0]!='-' && a+2>=argc)
servname = argv[a];
else if (strcmp(argv[a],"-b")==0 || strcmp(argv[a],"--client=SEXP")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_BROODWARS;
}
else if (strcmp(argv[a],"-d")==0 || strcmp(argv[a],"--client=DRTL")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_DIABLORTL;
}
else if (strcmp(argv[a],"--client=DSHR")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_DIABLOSHR;
}
else if (strcmp(argv[a],"-s")==0 || strcmp(argv[a],"--client=STAR")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_STARCRAFT;
}
else if (strcmp(argv[a],"--client=SSHR")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_SHAREWARE;
}
else if (strcmp(argv[a],"-w")==0 || strcmp(argv[a],"--client=W2BN")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_WARCIIBNE;
}
else if (strcmp(argv[a],"--client=D2DV")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_DIABLO2DV;
}
else if (strcmp(argv[a],"--client=D2XP")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_DIABLO2XP;
}
else if (strcmp(argv[a],"--client=WAR3")==0)
{
if (clienttag)
{
fprintf(stderr,"%s: client type was already specified as \"%s\"\n",argv[0],clienttag);
usage(argv[0]);
}
clienttag = CLIENTTAG_WARCRAFT3;
}
else if (strncmp(argv[a],"--client=",9)==0)
{
fprintf(stderr,"%s: unknown client tag \"%s\"\n",argv[0],&argv[a][9]);
usage(argv[0]);
}
else if (strncmp(argv[a],"--hexdump=",10)==0)
{
if (hexfile)
{
fprintf(stderr,"%s: hexdump file was already specified as \"%s\"\n",argv[0],hexfile);
usage(argv[0]);
}
hexfile = &argv[a][10];
}
else if (strcmp(argv[a],"--arch=IX86")==0)
{
if (archtag)
{
fprintf(stderr,"%s: client arch was already specified as \"%s\"\n",argv[0],archtag);
usage(argv[0]);
}
archtag = ARCHTAG_WINX86;
}
else if (strcmp(argv[a],"--arch=PMAC")==0)
{
if (archtag)
{
fprintf(stderr,"%s: client arch was already specified as \"%s\"\n",argv[0],archtag);
usage(argv[0]);
}
archtag = ARCHTAG_MACPPC;
}
else if (strcmp(argv[a],"--arch=XMAC")==0)
{
if (archtag)
{
fprintf(stderr,"%s: client arch was already specified as \"%s\"\n",argv[0],archtag);
usage(argv[0]);
}
archtag = ARCHTAG_OSXPPC;
}
else if (strncmp(argv[a],"--arch=",7)==0)
{
fprintf(stderr,"%s: unknown arch tag \"%s\"\n",argv[0],&argv[a][9]);
usage(argv[0]);
}
else if (strncmp(argv[a],"--startoffset=",14)==0)
{
if (startoffsetoverride)
{
fprintf(stderr,"%s: startoffset was already specified as %u\n",argv[0],startoffset);
usage(argv[0]);
}
if (str_to_uint(&argv[a][14],&startoffset)<0)
{
fprintf(stderr,"%s: startoffset \"%s\" should be a positive integer\n",argv[0],&argv[a][14]);
usage(argv[0]);
}
startoffsetoverride = 1;
}
else if (strncmp(argv[a],"--exists=",9)==0)
{
if (exist_action!=EXIST_ACTION_UNSPEC)
{
fprintf(stderr,"%s: exists was already specified\n",argv[0]);
usage(argv[0]);
}
if (argv[a][9]=='o' || argv[a][9]=='O')
exist_action = EXIST_ACTION_OVERWRITE;
else if (argv[a][9]=='a' || argv[a][9]=='A')
exist_action = EXIST_ACTION_ASK;
else if (argv[a][9]=='b' || argv[a][9]=='B')
exist_action = EXIST_ACTION_BACKUP;
else if (argv[a][9]=='r' || argv[a][9]=='R')
exist_action = EXIST_ACTION_RESUME;
else {
fprintf(stderr,"%s: exists must begin with a,A,o,O,b,B,r or R",argv[0]);
usage(argv[0]);
}
}
else if (strncmp(argv[a],"--file=",7)==0)
{
if (reqfile)
{
fprintf(stderr,"%s: file was already specified as \"%s\"\n",argv[0],reqfile);
usage(argv[0]);
}
reqfile = &argv[a][7];
}
else if (strcmp(argv[a],"-v")==0 || strcmp(argv[a],"--version")==0)
{
printf("version "BNETD_VERSION"\n");
return 0;
}
else if (strcmp(argv[a],"-h")==0 || strcmp(argv[a],"--help")==0 || strcmp(argv[a],"--usage")==0)
usage(argv[0]);
else if (strcmp(argv[a],"--client")==0 || strcmp(argv[a],"--hexdump")==0)
{
fprintf(stderr,"%s: option \"%s\" requires an argument\n",argv[0],argv[a]);
usage(argv[0]);
}
else
{
fprintf(stderr,"%s: unknown option \"%s\"\n",argv[0],argv[a]);
usage(argv[0]);
}
if (servport==0)
servport = BNETD_SERV_PORT;
if (!clienttag)
clienttag = CLIENTTAG_STARCRAFT;
if (!archtag)
archtag = ARCHTAG_WINX86;
if (!servname)
servname = BNETD_DEFAULT_HOST;
if (exist_action==EXIST_ACTION_UNSPEC)
exist_action = EXIST_ACTION_ASK;
if (hexfile)
if (!(hexstrm = fopen(hexfile,"w")))
fprintf(stderr,"%s: could not open file \"%s\" for writing the hexdump (fopen: %s)",argv[0],hexfile,strerror(errno));
else
fprintf(hexstrm,"# dump generated by bnftp version "BNETD_VERSION"\n");
if (psock_init()<0)
{
fprintf(stderr,"%s: could not inialialize socket functions\n",argv[0]);
return STATUS_FAILURE;
}
if (!(host = gethostbyname(servname)))
{
fprintf(stderr,"%s: unknown host \"%s\"\n",argv[0],servname);
return STATUS_FAILURE;
}
fd_stdin = fileno(stdin);
if (tcgetattr(fd_stdin,&in_attr_old)>=0)
{
in_attr_new = in_attr_old;
in_attr_new.c_lflag &= ~(ECHO | ICANON); /* turn off ECHO and ICANON */
in_attr_new.c_cc[VMIN] = 1; /* require reads to return at least one byte */
in_attr_new.c_cc[VTIME] = 0; /* no timeout */
tcsetattr(fd_stdin,TCSANOW,&in_attr_new);
changed_in = 1;
}
else
{
fprintf(stderr,"%s: could not get terminal attributes for stdin\n",argv[0]);
changed_in = 0;
}
if (client_get_termsize(fd_stdin,&screen_width,&screen_height)<0)
{
fprintf(stderr,"%s: could not determine screen size\n",argv[0]);
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
return STATUS_FAILURE;
}
if ((sd = psock_socket(PSOCK_PF_INET,PSOCK_SOCK_STREAM,PSOCK_IPPROTO_TCP))<0)
{
fprintf(stderr,"%s: could not create socket (psock_socket: %s)\n",argv[0],strerror(psock_errno()));
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
return STATUS_FAILURE;
}
memset(&saddr,0,sizeof(saddr));
saddr.sin_family = PSOCK_AF_INET;
saddr.sin_port = htons(servport);
memcpy(&saddr.sin_addr.s_addr,host->h_addr_list[0],host->h_length);
if (psock_connect(sd,(struct sockaddr *)&saddr,sizeof(saddr))<0)
{
fprintf(stderr,"%s: could not connect to server \"%s\" port %hu (psock_connect: %s)\n",argv[0],servname,servport,strerror(psock_errno()));
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
return STATUS_FAILURE;
}
printf("Connected to %s:%hu.\n",inet_ntoa(saddr.sin_addr),servport);
#ifdef CLIENTDEBUG
eventlog_set(stderr);
#endif
if (!(packet = packet_create(packet_class_init)))
{
fprintf(stderr,"%s: could not create packet\n",argv[0]);
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
return STATUS_FAILURE;
}
bn_byte_set(&packet->u.client_initconn.class,CLIENT_INITCONN_CLASS_FILE);
if (hexstrm)
{
fprintf(hexstrm,"%d: send class=%s[0x%02hx] type=%s[0x%04hx] length=%u\n",
sd,
packet_get_class_str(packet),(unsigned int)packet_get_class(packet),
packet_get_type_str(packet,packet_dir_from_client),packet_get_type(packet),
packet_get_size(packet));
hexdump(hexstrm,packet_get_raw_data(packet,0),packet_get_size(packet));
}
client_blocksend_packet(sd,packet);
packet_del_ref(packet);
if (!(rpacket = packet_create(packet_class_file)))
{
fprintf(stderr,"%s: could not create packet\n",argv[0]);
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
return STATUS_FAILURE;
}
if (!(fpacket = packet_create(packet_class_raw)))
{
fprintf(stderr,"%s: could not create packet\n",argv[0]);
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
if (!reqfile) /* if not specified on the command line then prompt for it */
{
munged = 1;
commpos = 0;
text[0] = '\0';
for (;;)
{
switch (client_get_comm("filename: ",text,sizeof(text),&commpos,1,munged,screen_width))
{
case -1: /* cancel or error */
printf("\n");
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
case 0: /* timeout */
munged = 0;
continue;
case 1:
munged = 0;
if (text[0]=='\0')
continue;
printf("\n");
}
break;
}
reqfile = text;
}
if (stat(reqfile,&exist_buf)==0) /* check if the file exists */
{
char text2[MAX_MESSAGE_LEN];
munged = 1;
commpos = 0;
text2[0] = '\0';
while (exist_action==EXIST_ACTION_ASK)
{
switch (client_get_comm("File exists [O]verwrite, [B]ackup or [R]esume?: ",text2,sizeof(text2),&commpos,1,munged,screen_width))
{
case -1: /* cancel or error */
printf("\n");
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
case 0: /* timeout */
munged = 0;
continue;
case 1:
munged = 0;
if (text2[0]=='\0')
continue;
printf("\n");
break;
}
switch (text2[0])
{
case 'o':
case 'O':
exist_action = EXIST_ACTION_OVERWRITE;
break;
case 'b':
case 'B':
exist_action = EXIST_ACTION_BACKUP;
break;
case 'r':
case 'R':
exist_action = EXIST_ACTION_RESUME;
break;
default:
printf("Please answer with o,O,b,B,r or R.\n");
munged = 1;
continue;
}
break;
}
switch (exist_action)
{
case EXIST_ACTION_OVERWRITE:
if (!startoffsetoverride)
startoffset = 0;
break;
case EXIST_ACTION_BACKUP:
{
char * bakfile;
unsigned int bnr;
int renamed=0;
if (!(bakfile = malloc(strlen(reqfile)+1+2+1))) /* assuming we go up to bnr 99 we need reqfile+'.'+'99'+'\0' */
{
fprintf(stderr,"%s: unable to allocate memory for backup filename.\n",argv[0]);
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
for (bnr=0; bnr<100; bnr++)
{
sprintf(bakfile,"%s.%d",reqfile,bnr);
if (stat(bakfile,&exist_buf)==0)
continue; /* backup exists */
/* backup does not exist */
if (rename(reqfile,bakfile)<0) /* just rename the existing file to the backup */
fprintf(stderr,"%s: could not create backup file \"%s\" (rename: %s)\n",argv[0],bakfile,strerror(errno));
else
{
renamed = 1;
printf("Renaming \"%s\" to \"%s\".\n",reqfile,bakfile);
}
break;
}
free(bakfile);
if (!renamed)
{
fprintf(stderr,"%s: could not create backup for \"%s\".\n",argv[0],reqfile);
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
if (!startoffsetoverride)
startoffset = 0;
}
break;
case EXIST_ACTION_RESUME:
if (!startoffsetoverride)
startoffset = exist_buf.st_size;
break;
}
}
else
if (!startoffsetoverride)
startoffset = 0;
if (changed_in)
tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
if (!(packet = packet_create(packet_class_file)))
{
fprintf(stderr,"%s: could not create packet\n",argv[0]);
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
packet_set_size(packet,sizeof(t_client_file_req));
packet_set_type(packet,CLIENT_FILE_REQ);
bn_int_tag_set(&packet->u.client_file_req.archtag,archtag);
bn_int_tag_set(&packet->u.client_file_req.clienttag,clienttag);
bn_int_set(&packet->u.client_file_req.adid,0);
bn_int_set(&packet->u.client_file_req.extensiontag,0);
bn_int_set(&packet->u.client_file_req.startoffset,startoffset);
bn_long_set_a_b(&packet->u.client_file_req.timestamp,0x00000000,0x00000000);
packet_append_string(packet,reqfile);
if (hexstrm)
{
fprintf(hexstrm,"%d: send class=%s[0x%02hx] type=%s[0x%04hx] length=%u\n",
sd,
packet_get_class_str(packet),(unsigned int)packet_get_class(packet),
packet_get_type_str(packet,packet_dir_from_client),packet_get_type(packet),
packet_get_size(packet));
hexdump(hexstrm,packet_get_raw_data(packet,0),packet_get_size(packet));
}
printf("\nRequesting info...");
fflush(stdout);
client_blocksend_packet(sd,packet);
packet_del_ref(packet);
do
{
if (client_blockrecv_packet(sd,rpacket)<0)
{
fprintf(stderr,"%s: server closed connection\n",argv[0]);
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
if (hexstrm)
{
fprintf(hexstrm,"%d: recv class=%s[0x%02hx] type=%s[0x%04hx] length=%u\n",
sd,
packet_get_class_str(rpacket),(unsigned int)packet_get_class(rpacket),
packet_get_type_str(rpacket,packet_dir_from_server),packet_get_type(rpacket),
packet_get_size(rpacket));
hexdump(hexstrm,packet_get_raw_data(rpacket,0),packet_get_size(rpacket));
}
}
while (packet_get_type(rpacket)!=SERVER_FILE_REPLY);
filelen = bn_int_get(rpacket->u.server_file_reply.filelen);
bn_long_to_bnettime(rpacket->u.server_file_reply.timestamp,&bntime);
tm = bnettime_to_time(bntime);
strftime(timestr,FILE_TIME_MAXLEN,FILE_TIME_FORMAT,localtime(&tm));
filename = packet_get_str_const(rpacket,sizeof(t_server_file_reply),MAX_FILENAME_STR);
if (exist_action==EXIST_ACTION_RESUME)
{
if (!(fp = fopen(reqfile,"ab")))
{
fprintf(stderr,"%s: could not open file \"%s\" for appending (fopen: %s)\n",argv[0],reqfile,strerror(errno));
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
}
else
{
if (!(fp = fopen(reqfile,"wb")))
{
fprintf(stderr,"%s: could not open file \"%s\" for writing (fopen: %s)\n",argv[0],reqfile,strerror(errno));
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
}
printf("\n name: \"");
str_print_term(stdout,filename,0,0);
printf("\"\n changed: %s\n length: %u bytes\n",timestr,filelen);
fflush(stdout);
if (startoffset>0) {
filelen -= startoffset; /* for resuming files */
printf("Resuming at position %u (%u bytes remaining).\n",startoffset,filelen);
}
printf("\nSaving to \"%s\"...",reqfile);
for (currsize=0; currsize+MAX_PACKET_SIZE<=filelen; currsize+=MAX_PACKET_SIZE)
{
printf(".");
fflush(stdout);
if (client_blockrecv_raw_packet(sd,fpacket,MAX_PACKET_SIZE)<0)
{
printf("error\n");
fprintf(stderr,"%s: server closed connection\n",argv[0]);
if (fclose(fp)<0)
fprintf(stderr,"%s: could not close file \"%s\" after writing (fclose: %s)\n",argv[0],reqfile,strerror(errno));
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
if (hexstrm)
{
fprintf(hexstrm,"%d: recv class=%s[0x%02hx] type=%s[0x%04hx] length=%u\n",
sd,
packet_get_class_str(fpacket),(unsigned int)packet_get_class(fpacket),
packet_get_type_str(fpacket,packet_dir_from_server),packet_get_type(fpacket),
packet_get_size(fpacket));
hexdump(hexstrm,packet_get_raw_data(fpacket,0),packet_get_size(fpacket));
}
if (fwrite(packet_get_raw_data_const(fpacket,0),1,MAX_PACKET_SIZE,fp)<MAX_PACKET_SIZE)
{
printf("error\n");
fprintf(stderr,"%s: could not write to file \"%s\" (fwrite: %s)\n",argv[0],reqfile,strerror(errno));
if (fclose(fp)<0)
fprintf(stderr,"%s: could not close file \"%s\" after writing (fclose: %s)\n",argv[0],reqfile,strerror(errno));
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
}
filelen -= currsize;
if (filelen)
{
printf(".");
fflush(stdout);
if (client_blockrecv_raw_packet(sd,fpacket,filelen)<0)
{
printf("error\n");
fprintf(stderr,"%s: server closed connection\n",argv[0]);
if (fclose(fp)<0)
fprintf(stderr,"%s: could not close file \"%s\" after writing (fclose: %s)\n",argv[0],reqfile,strerror(errno));
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
if (hexstrm)
{
fprintf(hexstrm,"%d: recv class=%s[0x%02hx] type=%s[0x%04hx] length=%u\n",
sd,
packet_get_class_str(fpacket),(unsigned int)packet_get_class(fpacket),
packet_get_type_str(fpacket,packet_dir_from_server),packet_get_type(fpacket),
packet_get_size(fpacket));
hexdump(hexstrm,packet_get_raw_data(fpacket,0),packet_get_size(fpacket));
}
if (fwrite(packet_get_raw_data_const(fpacket,0),1,filelen,fp)<filelen)
{
printf("error\n");
fprintf(stderr,"%s: could not write to file \"%s\"\n",argv[0],reqfile);
if (fclose(fp)<0)
fprintf(stderr,"%s: could not close file \"%s\" after writing (fclose: %s)\n",argv[0],reqfile,strerror(errno));
packet_del_ref(fpacket);
packet_del_ref(rpacket);
return STATUS_FAILURE;
}
}
packet_del_ref(fpacket);
packet_del_ref(rpacket);
if (hexstrm)
{
fprintf(hexstrm,"# end of dump\n");
if (fclose(hexstrm)<0)
fprintf(stderr,"%s: could not close hexdump file \"%s\" after writing (fclose: %s)",argv[0],hexfile,strerror(errno));
}
if (fclose(fp)<0)
{
fprintf(stderr,"%s: could not close file \"%s\" after writing (fclose: %s)\n",argv[0],reqfile,strerror(errno));
return STATUS_FAILURE;
}
printf("done\n");
return STATUS_FAILURE;
}
static int proxy_process(unsigned short server_listen_port, struct sockaddr_in servaddr)
{
int lsock;
struct sockaddr_in laddr;
t_psock_fd_set rfds, wfds;
int highest_fd;
int udpsock;
t_virtconn * vc;
t_elem const * curr;
int csocket;
int ssocket;
if ((udpsock = psock_socket(PSOCK_PF_INET,PSOCK_SOCK_DGRAM,PSOCK_IPPROTO_UDP))<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not create UDP socket (psock_socket: %s)",pstrerror(psock_errno()));
return -1;
}
if (psock_ctl(udpsock,PSOCK_NONBLOCK)<0)
eventlog(eventlog_level_error,__FUNCTION__,"could not set UDP listen socket to non-blocking mode (psock_ctl: %s)",pstrerror(psock_errno()));
if ((lsock = psock_socket(PSOCK_PF_INET,PSOCK_SOCK_STREAM,PSOCK_IPPROTO_TCP))<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not create listening socket (psock_socket: %s)",pstrerror(psock_errno()));
psock_close(udpsock);
return -1;
}
{
int val=1;
if (psock_setsockopt(lsock,PSOCK_SOL_SOCKET,PSOCK_SO_REUSEADDR,&val,(psock_t_socklen)sizeof(int))<0)
eventlog(eventlog_level_error,__FUNCTION__,"[%d] could not set socket option SO_REUSEADDR (psock_setsockopt: %s)",lsock,pstrerror(psock_errno()));
/* not a fatal error... */
}
memset(&laddr,0,sizeof(laddr));
laddr.sin_family = PSOCK_AF_INET;
laddr.sin_port = htons(server_listen_port);
laddr.sin_addr.s_addr = htonl(INADDR_ANY);
if (psock_bind(lsock,(struct sockaddr *)&laddr,(psock_t_socklen)sizeof(laddr))<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not bind socket to address 0.0.0.0:%hu TCP (psock_bind: %s)",server_listen_port,pstrerror(psock_errno()));
psock_close(udpsock);
psock_close(lsock);
return -1;
}
memset(&laddr,0,sizeof(laddr));
laddr.sin_family = PSOCK_AF_INET;
laddr.sin_port = htons(server_listen_port);
laddr.sin_addr.s_addr = htonl(INADDR_ANY);
if (psock_bind(udpsock,(struct sockaddr *)&laddr,(psock_t_socklen)sizeof(laddr))<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not bind socket to address 0.0.0.0:%hu UDP (psock_bind: %s)",server_listen_port,pstrerror(psock_errno()));
psock_close(udpsock);
psock_close(lsock);
return -1;
}
eventlog(eventlog_level_info,__FUNCTION__,"bound to UDP port %hu",server_listen_port);
/* tell socket to listen for connections */
if (psock_listen(lsock,LISTEN_QUEUE)<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"could not listen (psock_listen: %s)",pstrerror(psock_errno()));
psock_close(udpsock);
psock_close(lsock);
return -1;
}
if (psock_ctl(lsock,PSOCK_NONBLOCK)<0)
eventlog(eventlog_level_error,__FUNCTION__,"could not set TCP listen socket to non-blocking mode (psock_ctl: %s)",pstrerror(psock_errno()));
eventlog(eventlog_level_info,__FUNCTION__,"listening on TCP port %hu",server_listen_port);
for (;;)
{
/* loop over all connections to create the sets for select() */
PSOCK_FD_ZERO(&rfds);
PSOCK_FD_ZERO(&wfds);
highest_fd = lsock;
PSOCK_FD_SET(lsock,&rfds);
if (udpsock>highest_fd)
highest_fd = udpsock;
PSOCK_FD_SET(udpsock,&rfds);
LIST_TRAVERSE_CONST(virtconnlist(),curr)
{
vc = elem_get_data(curr);
csocket = virtconn_get_client_socket(vc);
if (queue_get_length((t_queue const * const *)virtconn_get_clientout_queue(vc))>0)
PSOCK_FD_SET(csocket,&wfds); /* pending output, also check for writeability */
PSOCK_FD_SET(csocket,&rfds);
if (csocket>highest_fd)
highest_fd = csocket;
switch (virtconn_get_state(vc))
{
case virtconn_state_connecting:
eventlog(eventlog_level_debug,__FUNCTION__,"waiting for %d to finish connecting",ssocket);
ssocket = virtconn_get_server_socket(vc);
PSOCK_FD_SET(ssocket,&wfds); /* wait for connect to complete */
if (ssocket>highest_fd)
highest_fd = ssocket;
break;
case virtconn_state_connected:
eventlog(eventlog_level_debug,__FUNCTION__,"checking for reading on connected socket %d",ssocket);
ssocket = virtconn_get_server_socket(vc);
if (queue_get_length((t_queue const * const *)virtconn_get_serverout_queue(vc))>0)
PSOCK_FD_SET(ssocket,&wfds); /* pending output, also check for writeability */
PSOCK_FD_SET(ssocket,&rfds);
if (ssocket>highest_fd)
highest_fd = ssocket;
break;
default: /* avoid warning */
break;
}
}
/* find which sockets need servicing */
if (psock_select(highest_fd+1,&rfds,&wfds,NULL,NULL)<0)
{
if (errno!=PSOCK_EINTR)
eventlog(eventlog_level_error,__FUNCTION__,"select failed (select: %s)",pstrerror(errno));
continue;
}
/* check for incoming connection */
if (PSOCK_FD_ISSET(lsock,&rfds))
{
int asock;
struct sockaddr_in caddr;
psock_t_socklen caddr_len;
/* accept the connection */
caddr_len = sizeof(caddr);
if ((asock = psock_accept(lsock,(struct sockaddr *)&caddr,&caddr_len))<0)
{
if (psock_errno()==PSOCK_EWOULDBLOCK || psock_errno()==PSOCK_ECONNABORTED) /* BSD, POSIX error for aborted connections, SYSV often uses EAGAIN */
eventlog(eventlog_level_error,__FUNCTION__,"client aborted connection (psock_accept: %s)",pstrerror(psock_errno()));
else /* EAGAIN can mean out of resources _or_ connection aborted */
if (psock_errno()!=PSOCK_EINTR)
eventlog(eventlog_level_error,__FUNCTION__,"could not accept new connection (psock_accept: %s)",pstrerror(psock_errno()));
}
else
{
int ssd;
int val=1;
eventlog(eventlog_level_info,__FUNCTION__,"[%d] accepted connection from %s:%hu",asock,inet_ntoa(caddr.sin_addr),ntohs(caddr.sin_port));
if (psock_setsockopt(asock,PSOCK_SOL_SOCKET,PSOCK_SO_KEEPALIVE,&val,(psock_t_socklen)sizeof(val))<0)
eventlog(eventlog_level_error,__FUNCTION__,"[%d] could not set socket option SO_KEEPALIVE (psock_setsockopt: %s)",asock,pstrerror(psock_errno()));
/* not a fatal error */
if (psock_ctl(asock,PSOCK_NONBLOCK)<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"[%d] could not set TCP socket to non-blocking mode (closing connection) (psock_ctl: %s)",asock,pstrerror(psock_errno()));
psock_close(asock);
}
else
if ((ssd = psock_socket(PSOCK_PF_INET,PSOCK_SOCK_STREAM,PSOCK_IPPROTO_TCP))<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"[%d] could create TCP socket (closing connection) (psock_socket: %s)",asock,pstrerror(psock_errno()));
psock_close(asock);
}
else
if (psock_ctl(ssd,PSOCK_NONBLOCK)<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"[%d] could not set TCP socket to non-blocking mode (closing connection) (psock_ctl: %s)",asock,pstrerror(psock_errno()));
psock_close(ssd);
psock_close(asock);
}
else
if (!(vc = virtconn_create(asock,ssd,ntohl(caddr.sin_addr.s_addr),BNETD_MIN_TEST_PORT)))
{
eventlog(eventlog_level_error,__FUNCTION__,"[%d] unable to create new connection (closing connection)",asock);
psock_close(ssd);
psock_close(asock);
}
else
{
memset(&caddr,0,sizeof(caddr));
caddr.sin_family = PSOCK_AF_INET;
caddr.sin_port = htons(virtconn_get_udpport(vc));
caddr.sin_addr.s_addr = htonl(virtconn_get_udpaddr(vc));
eventlog(eventlog_level_info,__FUNCTION__,"[%d] addr now %s:%hu",asock,inet_ntoa(caddr.sin_addr),ntohs(caddr.sin_port));
}
}
}
eventlog(eventlog_level_debug,__FUNCTION__,"checking for incoming UDP");
if (PSOCK_FD_ISSET(udpsock,&rfds))
{
t_packet * upacket;
struct sockaddr_in toaddr;
struct sockaddr_in fromaddr;
psock_t_socklen fromlen;
int len;
if (!(upacket = packet_create(packet_class_raw)))
eventlog(eventlog_level_error,__FUNCTION__,"could not allocate raw packet for input");
else
{
/* packet_set_flags(upacket,PROXY_FLAG_UDP);*/
fromlen = sizeof(fromaddr);
if ((len = psock_recvfrom(udpsock,packet_get_raw_data_build(upacket,0),MAX_PACKET_SIZE,0,(struct sockaddr *)&fromaddr,&fromlen))<0)
{
if (psock_errno()!=PSOCK_EINTR && psock_errno()!=PSOCK_EAGAIN && psock_errno()!=PSOCK_EWOULDBLOCK)
eventlog(eventlog_level_error,__FUNCTION__,"could not recv UDP datagram (psock_recvfrom: %s)",pstrerror(psock_errno()));
}
else
{
if (fromaddr.sin_family!=PSOCK_AF_INET)
eventlog(eventlog_level_error,__FUNCTION__,"got UDP datagram with bad address family %d",fromaddr.sin_family);
else
{
char tempa[32];
char tempb[32];
packet_set_size(upacket,len);
if (fromaddr.sin_addr.s_addr==servaddr.sin_addr.s_addr) /* from server */
{
if ((curr = list_get_first_const(virtconnlist()))) /* hack.. find proper client */
{
vc = elem_get_data(curr);
memset(&toaddr,0,sizeof(toaddr));
toaddr.sin_family = PSOCK_AF_INET;
toaddr.sin_port = htons(virtconn_get_udpport(vc));
toaddr.sin_addr.s_addr = htonl(virtconn_get_udpaddr(vc));
eventlog(eventlog_level_info,__FUNCTION__,"[%d] addr by UDP send is %s:%hu",virtconn_get_client_socket(vc),inet_ntoa(toaddr.sin_addr),ntohs(toaddr.sin_port));
if (hexstrm)
{
strcpy(tempa,inet_ntoa(fromaddr.sin_addr));
strcpy(tempb,inet_ntoa(toaddr.sin_addr));
fprintf(hexstrm,"%d: srv prot=UDP from=%s:%hu to=%s:%hu length=%d\n",
udpsock,
tempa,
ntohs(fromaddr.sin_port),
tempb,
ntohs(toaddr.sin_port),
len);
hexdump(hexstrm,packet_get_raw_data(upacket,0),len);
}
/*queue_push_packet(virtconn_get_clientout_queue(__));*/ /* where to queue ... */
for (;;) /* hack.. just block for now */
{
if (psock_sendto(udpsock,packet_get_raw_data_const(upacket,0),len,0,
(struct sockaddr *)&toaddr,(psock_t_socklen)sizeof(toaddr))<len)
{
if (psock_errno()==PSOCK_EINTR || psock_errno()==PSOCK_EAGAIN || psock_errno()==PSOCK_EWOULDBLOCK)
continue;
eventlog(eventlog_level_error,__FUNCTION__,"could not send UDP datagram to client (psock_sendto: %s)",pstrerror(psock_errno()));
}
break;
}
}
}
else /* from client */
{
if (hexstrm)
{
strcpy(tempa,inet_ntoa(fromaddr.sin_addr));
strcpy(tempb,inet_ntoa(servaddr.sin_addr));
fprintf(hexstrm,"%d: clt prot=UDP from=%s:%hu to=%s:%hu length=%d\n",
udpsock,
tempa,
ntohs(fromaddr.sin_port),
tempb,
ntohs(servaddr.sin_port),
len);
hexdump(hexstrm,packet_get_raw_data(upacket,0),len);
}
/*queue_push_packet(virtconn_get_serverout_queue(vc));*/
for (;;) /* hack.. just block for now */
{
if (psock_sendto(udpsock,packet_get_raw_data_const(upacket,0),len,0,
(struct sockaddr *)&servaddr,(psock_t_socklen)sizeof(servaddr))<len)
{
if (psock_errno()==PSOCK_EINTR || psock_errno()==PSOCK_EAGAIN || psock_errno()==PSOCK_EWOULDBLOCK)
continue;
eventlog(eventlog_level_error,__FUNCTION__,"could not send UDP datagram to server (psock_sendto: %s)",pstrerror(psock_errno()));
}
break;
}
}
}
}
packet_del_ref(upacket);
}
}
/* search connections for sockets that need service */
eventlog(eventlog_level_debug,__FUNCTION__,"checking for sockets that need service");
LIST_TRAVERSE_CONST(virtconnlist(),curr)
{
unsigned int currsize;
t_packet * packet;
vc = elem_get_data(curr);
csocket = virtconn_get_client_socket(vc);
if (virtconn_get_state(vc)==virtconn_state_connected ||
virtconn_get_state(vc)==virtconn_state_connecting)
ssocket = virtconn_get_server_socket(vc);
else
ssocket = -1;
eventlog(eventlog_level_debug,__FUNCTION__,"checking %d for client readability",csocket);
if (PSOCK_FD_ISSET(csocket,&rfds))
{
if (virtconn_get_state(vc)==virtconn_state_initial)
{
if (init_virtconn(vc,servaddr)<0)
{
virtconn_destroy(vc);
continue;
}
}
else
{
currsize = virtconn_get_clientin_size(vc);
if (!queue_get_length(virtconn_get_clientin_queue(vc)))
{
switch (virtconn_get_class(vc))
{
case virtconn_class_bnet:
if (!(packet = packet_create(packet_class_bnet)))
{
eventlog(eventlog_level_error,__FUNCTION__,"could not allocate normal packet for input");
continue;
}
break;
case virtconn_class_file:
if (!(packet = packet_create(packet_class_file)))
{
eventlog(eventlog_level_error,__FUNCTION__,"could not allocate file packet for input");
continue;
}
break;
case virtconn_class_bot:
if (!(packet = packet_create(packet_class_raw)))
{
eventlog(eventlog_level_error,__FUNCTION__,"could not allocate raw packet for input");
continue;
}
packet_set_size(packet,1); /* start by only reading one char */
break;
default:
eventlog(eventlog_level_error,__FUNCTION__,"[%d] connection has bad type (closing connection)",virtconn_get_client_socket(vc));
virtconn_destroy(vc);
continue;
}
queue_push_packet(virtconn_get_clientin_queue(vc),packet);
packet_del_ref(packet);
if (!queue_get_length(virtconn_get_clientin_queue(vc)))
continue; /* push failed */
currsize = 0;
}
packet = queue_peek_packet((t_queue const * const *)virtconn_get_clientin_queue(vc)); /* avoid warning */
switch (net_recv_packet(csocket,packet,&currsize))
{
case -1:
virtconn_destroy(vc);
continue;
case 0: /* still working on it */
virtconn_set_clientin_size(vc,currsize);
break;
case 1: /* done reading */
if (virtconn_get_class(vc)==virtconn_class_bot &&
currsize<MAX_PACKET_SIZE)
{
char const * const temp=packet_get_raw_data_const(packet,0);
if (temp[currsize-1]!='\r' && temp[currsize-1]!='\n')
{
virtconn_set_clientin_size(vc,currsize);
packet_set_size(packet,currsize+1);
break; /* no end of line, get another char */
}
/* got a complete line... fall through */
}
packet = queue_pull_packet(virtconn_get_clientin_queue(vc));
if (hexstrm)
{
fprintf(hexstrm,"%d: cli class=%s[0x%04hx] type=%s[0x%04hx] length=%hu\n",
csocket,
packet_get_class_str(packet),packet_get_class(packet),
packet_get_type_str(packet,packet_dir_from_client),packet_get_type(packet),
packet_get_size(packet));
hexdump(hexstrm,packet_get_raw_data_const(packet,0),packet_get_size(packet));
}
queue_push_packet(virtconn_get_serverout_queue(vc),packet);
packet_del_ref(packet);
virtconn_set_clientin_size(vc,0);
}
}
}
eventlog(eventlog_level_debug,__FUNCTION__,"checking %d for server readability",ssocket);
if (ssocket!=-1 && PSOCK_FD_ISSET(ssocket,&rfds))
{
currsize = virtconn_get_serverin_size(vc);
if (!queue_get_length(virtconn_get_serverin_queue(vc)))
{
switch (virtconn_get_class(vc))
{
case virtconn_class_bnet:
if (!(packet = packet_create(packet_class_bnet)))
{
eventlog(eventlog_level_error,__FUNCTION__,"could not allocate normal packet for input");
continue;
}
break;
case virtconn_class_file:
{
unsigned int fileleft;
if ((fileleft = virtconn_get_fileleft(vc))>0)
{
if (!(packet = packet_create(packet_class_raw)))
{
eventlog(eventlog_level_error,__FUNCTION__,"could not allocate raw file packet for input");
continue;
}
if (fileleft>MAX_PACKET_SIZE)
packet_set_size(packet,MAX_PACKET_SIZE);
else
packet_set_size(packet,fileleft);
}
else
{
if (!(packet = packet_create(packet_class_file)))
{
eventlog(eventlog_level_error,__FUNCTION__,"could not allocate file packet for input");
continue;
}
}
}
break;
case virtconn_class_bot:
if (!(packet = packet_create(packet_class_raw)))
{
eventlog(eventlog_level_error,__FUNCTION__,"could not allocate raw packet for input");
continue;
}
packet_set_size(packet,MAX_PACKET_SIZE); /* read as much as possible */
break;
default:
eventlog(eventlog_level_error,__FUNCTION__,"[%d] connection has bad type (closing connection)",virtconn_get_client_socket(vc));
virtconn_destroy(vc);
continue;
}
queue_push_packet(virtconn_get_serverin_queue(vc),packet);
packet_del_ref(packet);
if (!queue_get_length(virtconn_get_serverin_queue(vc)))
continue; /* push failed */
currsize = 0;
}
packet = queue_peek_packet((t_queue const * const *)virtconn_get_serverin_queue(vc)); /* avoid warning */
switch (net_recv_packet(ssocket,packet,&currsize))
{
case -1:
virtconn_destroy(vc);
continue;
case 0: /* still working on it */
virtconn_set_serverin_size(vc,currsize);
if (virtconn_get_class(vc)!=virtconn_class_bot || currsize<1)
break;
else
packet_set_size(packet,currsize);
/* fallthough... we take what we can get with the bot data */
case 1: /* done reading */
packet = queue_pull_packet(virtconn_get_serverin_queue(vc));
if (virtconn_get_class(vc)==virtconn_class_file)
{
unsigned int len=virtconn_get_fileleft(vc);
if (len)
virtconn_set_fileleft(vc,len-currsize);
else if (packet_get_type(packet)==SERVER_FILE_REPLY &&
packet_get_size(packet)>=sizeof(t_server_file_reply))
virtconn_set_fileleft(vc,bn_int_get(packet->u.server_file_reply.filelen));
}
queue_push_packet(virtconn_get_clientout_queue(vc),packet);
packet_del_ref(packet);
virtconn_set_serverin_size(vc,0);
}
}
eventlog(eventlog_level_debug,__FUNCTION__,"checking %d for client writeability",csocket);
if (PSOCK_FD_ISSET(csocket,&wfds))
{
currsize = virtconn_get_clientout_size(vc);
switch (net_send_packet(csocket,queue_peek_packet((t_queue const * const *)virtconn_get_clientout_queue(vc)),&currsize)) /* avoid warning */
{
case -1:
virtconn_destroy(vc);
continue;
case 0: /* still working on it */
virtconn_set_clientout_size(vc,currsize);
break;
case 1: /* done sending */
packet = queue_pull_packet(virtconn_get_clientout_queue(vc));
if (hexstrm)
{
fprintf(hexstrm,"%d: srv class=%s[0x%04hx] type=%s[0x%04hx] length=%hu\n",
csocket,
packet_get_class_str(packet),packet_get_class(packet),
packet_get_type_str(packet,packet_dir_from_server),packet_get_type(packet),
packet_get_size(packet));
hexdump(hexstrm,packet_get_raw_data(packet,0),packet_get_size(packet));
}
packet_del_ref(packet);
virtconn_set_clientout_size(vc,0);
}
}
eventlog(eventlog_level_debug,__FUNCTION__,"checking %d for server writeability",ssocket);
if (ssocket!=-1 && PSOCK_FD_ISSET(ssocket,&wfds))
{
if (virtconn_get_state(vc)==virtconn_state_connecting)
{
int err;
psock_t_socklen errlen;
err = 0;
errlen = sizeof(err);
if (psock_getsockopt(ssocket,PSOCK_SOL_SOCKET,PSOCK_SO_ERROR,&err,&errlen)<0)
{
eventlog(eventlog_level_error,__FUNCTION__,"[%d] unable to read socket error (psock_getsockopt[psock_connect]: %s)",virtconn_get_client_socket(vc),pstrerror(psock_errno()));
virtconn_destroy(vc);
continue;
}
if (errlen==0 || err==0)
virtconn_set_state(vc,virtconn_state_connected);
else
{
eventlog(eventlog_level_error,__FUNCTION__,"[%d] could not connect to server (psock_getsockopt[psock_connect]: %s)",virtconn_get_client_socket(vc),pstrerror(err));
virtconn_destroy(vc);
continue;
}
}
else
{
currsize = virtconn_get_serverout_size(vc);
switch (net_send_packet(ssocket,queue_peek_packet((t_queue const * const *)virtconn_get_serverout_queue(vc)),&currsize)) /* avoid warning */
{
case -1:
virtconn_destroy(vc);
continue;
case 0: /* still working on it */
virtconn_set_serverout_size(vc,currsize);
break;
case 1: /* done sending */
packet = queue_pull_packet(virtconn_get_serverout_queue(vc));
packet_del_ref(packet);
virtconn_set_serverout_size(vc,0);
}
}
}
}