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 7.1 (Berkeley) 06/27/90"; 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; 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 for(;;) { 135 int child, ns; 136 int addrlen = sizeof(faddr); 137 char childname[50]; 138 139 try (accept, (s, &faddr, &addrlen), ""); 140 ns = x; 141 dumpit("connection from:", &faddr, sizeof faddr); 142 if (mynamep) { 143 addrlen = sizeof(faddr); 144 try (getsockname, (ns, &faddr, &addrlen), ""); 145 dumpit("connected as:", &faddr, addrlen); 146 } 147 loop++; 148 if (loop > 3) myexit(0); 149 if (forkp) { 150 try(fork, (), ""); 151 } else 152 x = 0; 153 if (x == 0) { 154 long n, count = 0, cn, flags; 155 records = 0; 156 if (confp) { 157 msghdr.msg_iovlen = 0; 158 msghdr.msg_namelen = 0; 159 msghdr.msg_controllen = 160 cbuf.cm.cmhdr.cmsg_len = sizeof (cbuf.cm.cmhdr); 161 cbuf.cm.cmhdr.cmsg_level = SOL_TRANSPORT; 162 cbuf.cm.cmhdr.cmsg_type = TPOPT_CFRM_DATA; 163 n = sendmsg(ns, &msghdr, 0); 164 if (n <= 0) { 165 printf("confirm: errno is %d\n", errno); 166 fflush(stdout); 167 perror("Confirm error"); 168 } else { 169 dbprintf("confim ok\n"); 170 } 171 sleep(10); 172 } 173 for (;;) { 174 msghdr.msg_iovlen = 1; 175 msghdr.msg_controllen = sizeof(control); 176 iov->iov_len = sizeof(readbuf); 177 n = recvmsg(ns, &msghdr, 0); 178 flags = msghdr.msg_flags; 179 count++; 180 dbprintf("recvmsg from child %d got %d ctl %d flags %x\n", 181 getpid(), n, (cn = msghdr.msg_controllen), 182 flags); 183 fflush(stdout); 184 if (cn && verbose) 185 dumpit("control data:\n", control, cn); 186 if (n < 0) { 187 fprintf(stderr, "errno is %d\n", errno); 188 perror("recvmsg"); 189 /*sleep (10);*/ 190 break; 191 } else { 192 if (verbose) 193 dumpit("data:\n", readbuf, n); 194 } 195 if (echop) { 196 n = answerback(flags, n, ns); 197 } 198 if (flags & MSG_EOR) 199 records++; 200 if (playtag && n == sizeof(your_it) && (flags & MSG_EOR) 201 && bcmp(readbuf, your_it, n) == 0) { 202 printf("Answering back!!!!\n"); 203 answerback(flags, n, ns); 204 answerback(flags, n, ns); 205 } 206 errno = 0; 207 } 208 } 209 myexit(0); 210 } 211 } 212 answerback(flags, n, ns) 213 { 214 msghdr.msg_controllen = 0; 215 msghdr.msg_iovlen = 1; 216 iov->iov_len = n; 217 n = sendmsg(ns, &msghdr, flags); 218 dbprintf("echoed %d\n", n); 219 return n; 220 } 221 222 dumpit(what, where, n) 223 char *what; unsigned short *where; int n; 224 { 225 unsigned short *s = where; 226 unsigned short *z = where + (n+1)/2; 227 int count = 0; 228 printf(what); 229 while(s < z) { 230 count++; 231 printf("%x ",*s++); 232 if ((count & 15) == 0) 233 putchar('\n'); 234 } 235 if (count & 15) 236 putchar('\n'); 237 fflush(stdout); 238 } 239 myexit(n) 240 { 241 fflush(stderr); 242 printf("got %d records\n", records); 243 fflush(stdout); 244 exit(n); 245 } 246