1 /* 2 * Copyright (c) 1988, 1990 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 #ifndef lint 8 static char sccsid[] = "@(#)tisink.c 7.2 (Berkeley) 06/28/90"; 9 #endif /* not lint */ 10 11 /* 12 * This is a test program to be a sink for TP4 connections. 13 */ 14 #include <sys/param.h> 15 #include <sys/uio.h> 16 #include <sys/socket.h> 17 #include <sys/ioctl.h> 18 #include <net/route.h> 19 #include <net/if.h> 20 #define TCPT_NTIMERS 4 21 #include <netiso/iso.h> 22 #include <netiso/tp_param.h> 23 #include <netiso/tp_user.h> 24 25 #include <stdio.h> 26 #include <errno.h> 27 #include <ctype.h> 28 #include <netdb.h> 29 30 31 #define dbprintf if(verbose)printf 32 #define try(a,b,c) {x = (a b); dbprintf("%s%s returns %d\n",c,"a",x);\ 33 if(x<0) {perror("a"); myexit(0);}} 34 35 36 struct ifreq ifr; 37 short port = 3000; 38 struct sockaddr_iso faddr, laddr = { sizeof(laddr), AF_ISO }; 39 struct sockaddr_iso *siso = &laddr; 40 41 long size, count = 10, forkp, confp, echop, mynamep, verbose = 1, playtag = 0; 42 long records, intercept; 43 44 char buf[2048]; 45 char your_it[] = "You're it!"; 46 47 char *Servername; 48 49 main(argc, argv) 50 int argc; 51 char *argv[]; 52 { 53 register char **av = argv; 54 register char *cp; 55 struct iso_addr iso_addr(); 56 57 while(--argc > 0) { 58 av++; 59 if(strcmp(*av,"Servername")==0) { 60 av++; 61 Servername = *av; 62 argc--; 63 } else if (strcmp(*av,"host")==0) { 64 av++; 65 laddr.siso_addr = iso_addr(*av); 66 argc--; 67 } else if (strcmp(*av,"count")==0) { 68 av++; 69 sscanf(*av,"%ld",&count); 70 argc--; 71 } else if (strcmp(*av,"port")==0) { 72 av++; 73 sscanf(*av,"%hd",&port); 74 argc--; 75 } else if (strcmp(*av,"size")==0) { 76 av++; 77 sscanf(*av,"%ld",&size); 78 argc--; 79 } 80 } 81 if (Servername) { 82 int tlen = laddr.siso_tlen = strlen(Servername); 83 int len = TSEL(siso) + tlen - (caddr_t) &siso; 84 if (len > sizeof(*siso)) { 85 siso = (struct sockaddr_iso *)malloc(len); 86 *siso = laddr; 87 siso->siso_len = len; 88 } 89 bcopy(Servername, TSEL(siso), tlen); 90 } else { 91 port = htons(port); 92 laddr.siso_tlen = sizeof(port); 93 bcopy((char *)&port, TSEL(siso), sizeof(port)); 94 } 95 tisink(); 96 } 97 #define BIG 2048 98 #define MIDLIN 512 99 char readbuf[BIG]; 100 struct iovec iov[1] = { 101 readbuf, 102 sizeof readbuf, 103 }; 104 char name[MIDLIN]; 105 union { 106 struct { 107 struct cmsghdr cmhdr; 108 char cmdata[128 - sizeof(struct cmsghdr)]; 109 } cm; 110 char data[128]; 111 } cbuf; 112 #define control cbuf.data 113 struct msghdr msghdr = { 114 name, sizeof(name), 115 iov, sizeof(iov)/sizeof(iov[1]), 116 control, sizeof control, 117 0 /* flags */ 118 }; 119 120 tisink() 121 { 122 int x, s, pid, on = 1, loop = 0, n; 123 extern int errno; 124 125 try(socket, (AF_ISO, SOCK_SEQPACKET, 0),""); 126 127 s = x; 128 129 try(bind, (s, (struct sockaddr *) siso, siso->siso_len), ""); 130 131 /*try(setsockopt, (s, SOL_SOCKET, SO_DEBUG, &on, sizeof (on)), ""); */ 132 133 try(listen, (s, 5), ""); 134 if (intercept) { 135 try(setsockopt, 136 (s, SOL_TRANSPORT, TPOPT_INTERCEPT, &on, sizeof(on)), ""); 137 } 138 for(;;) { 139 int child, ns; 140 int addrlen = sizeof(faddr); 141 char childname[50]; 142 143 try (accept, (s, &faddr, &addrlen), ""); 144 ns = x; 145 dumpit("connection from:", &faddr, sizeof faddr); 146 if (mynamep) { 147 addrlen = sizeof(faddr); 148 try (getsockname, (ns, &faddr, &addrlen), ""); 149 dumpit("connected as:", &faddr, addrlen); 150 } 151 loop++; 152 if (loop > 3) myexit(0); 153 if (forkp) { 154 try(fork, (), ""); 155 } else 156 x = 0; 157 if (x == 0) { 158 long n, count = 0, cn, flags; 159 records = 0; 160 if (confp) { 161 msghdr.msg_iovlen = 0; 162 msghdr.msg_namelen = 0; 163 msghdr.msg_controllen = 164 cbuf.cm.cmhdr.cmsg_len = sizeof (cbuf.cm.cmhdr); 165 cbuf.cm.cmhdr.cmsg_level = SOL_TRANSPORT; 166 cbuf.cm.cmhdr.cmsg_type = TPOPT_CFRM_DATA; 167 n = sendmsg(ns, &msghdr, 0); 168 if (n <= 0) { 169 printf("confirm: errno is %d\n", errno); 170 fflush(stdout); 171 perror("Confirm error"); 172 } else { 173 dbprintf("confim ok\n"); 174 } 175 sleep(10); 176 } 177 for (;;) { 178 msghdr.msg_iovlen = 1; 179 msghdr.msg_controllen = sizeof(control); 180 iov->iov_len = sizeof(readbuf); 181 n = recvmsg(ns, &msghdr, 0); 182 flags = msghdr.msg_flags; 183 count++; 184 dbprintf("recvmsg from child %d got %d ctl %d flags %x\n", 185 getpid(), n, (cn = msghdr.msg_controllen), 186 flags); 187 fflush(stdout); 188 if (cn && verbose) 189 dumpit("control data:\n", control, cn); 190 if (n < 0) { 191 fprintf(stderr, "errno is %d\n", errno); 192 perror("recvmsg"); 193 /*sleep (10);*/ 194 break; 195 } else { 196 if (verbose) 197 dumpit("data:\n", readbuf, n); 198 } 199 if (echop) { 200 n = answerback(flags, n, ns); 201 } 202 if (flags & MSG_EOR) 203 records++; 204 if (playtag && n == sizeof(your_it) && (flags & MSG_EOR) 205 && bcmp(readbuf, your_it, n) == 0) { 206 printf("Answering back!!!!\n"); 207 answerback(flags, n, ns); 208 answerback(flags, n, ns); 209 } 210 errno = 0; 211 } 212 } 213 myexit(0); 214 } 215 } 216 answerback(flags, n, ns) 217 { 218 msghdr.msg_controllen = 0; 219 msghdr.msg_iovlen = 1; 220 iov->iov_len = n; 221 n = sendmsg(ns, &msghdr, flags); 222 dbprintf("echoed %d\n", n); 223 return n; 224 } 225 226 dumpit(what, where, n) 227 char *what; unsigned short *where; int n; 228 { 229 unsigned short *s = where; 230 unsigned short *z = where + (n+1)/2; 231 int count = 0; 232 printf(what); 233 while(s < z) { 234 count++; 235 printf("%x ",*s++); 236 if ((count & 15) == 0) 237 putchar('\n'); 238 } 239 if (count & 15) 240 putchar('\n'); 241 fflush(stdout); 242 } 243 myexit(n) 244 { 245 fflush(stderr); 246 printf("got %d records\n", records); 247 fflush(stdout); 248 exit(n); 249 } 250