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Annotation of Net2/tests/netccitt/xi_sink.c, revision 1.1

1.1     ! root        1: /*-
        !             2:  * Copyright (c) 1988, 1991 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  */
        !            33: 
        !            34: #ifndef lint
        !            35: char copyright[] =
        !            36: "@(#) Copyright (c) 1988, 1991 The Regents of the University of California.\n\
        !            37:  All rights reserved.\n";
        !            38: #endif /* not lint */
        !            39: 
        !            40: #ifndef lint
        !            41: static char sccsid[] = "@(#)xi_sink.c  7.4 (Berkeley) 5/7/91";
        !            42: #endif /* not lint */
        !            43: 
        !            44: /*
        !            45:  * This is a test program to be a sink for X.25 connections.
        !            46:  */
        !            47: #include <sys/param.h>
        !            48: #include <sys/uio.h>
        !            49: #include <sys/socket.h>
        !            50: #include <sys/ioctl.h>
        !            51: #include <net/route.h>
        !            52: #include <net/if.h>
        !            53: #include <netccitt/x25.h>
        !            54: 
        !            55: #include <stdio.h>
        !            56: #include <errno.h>
        !            57: #include <ctype.h>
        !            58: #include <netdb.h>
        !            59: 
        !            60: 
        !            61: #define dbprintf if(verbose)printf
        !            62: #define try(a,b,c) {x = (a b); dbprintf("%s%s returns %d\n",c,"a",x);\
        !            63:                if(x<0) {perror("a"); myexit(0);}}
        !            64: 
        !            65: 
        !            66: struct  ifreq ifr;
        !            67: short port = 3000;
        !            68: struct  sockaddr_x25 faddr, laddr = { sizeof(laddr), AF_CCITT };
        !            69: struct  sockaddr_x25 *sx25 = &laddr;
        !            70: char **xenvp;
        !            71: 
        !            72: long size, count = 10, forkp, confp, echop, mynamep, verbose = 1, playtag = 0;
        !            73: long records, intercept = 0, isode_mode;
        !            74: 
        !            75: char buf[2048];
        !            76: char your_it[] = "You're it!";
        !            77: 
        !            78: char *Servername;
        !            79: 
        !            80: main(argc, argv, envp)
        !            81: int argc;
        !            82: char *argv[];
        !            83: char *envp[];
        !            84: {
        !            85:        register char **av = argv;
        !            86:        register char *cp;
        !            87: 
        !            88:        xenvp = envp;
        !            89:        while(--argc > 0) {
        !            90:                av++;
        !            91:                if (strcmp(*av,"host")==0) {
        !            92:                        av++;
        !            93:                        ccitt_addr(*av, sx25);
        !            94:                        argc--;
        !            95:                } else if (strcmp(*av,"count")==0) {
        !            96:                        av++;
        !            97:                        sscanf(*av,"%ld",&count);
        !            98:                        argc--;
        !            99:                } else if (strcmp(*av,"size")==0) {
        !           100:                        av++;
        !           101:                        sscanf(*av,"%ld",&size);
        !           102:                        argc--;
        !           103:                } else if (strcmp(*av, "intercept")==0) {
        !           104:                        intercept++;
        !           105:                }
        !           106:        }
        !           107:        tisink();
        !           108: }
        !           109: #define BIG 2048
        !           110: #define MIDLIN 512
        !           111: char readbuf[BIG];
        !           112: struct iovec iov[1] = {
        !           113:        readbuf,
        !           114:        sizeof readbuf,
        !           115: };
        !           116: char name[MIDLIN];
        !           117: union {
        !           118:     struct {
        !           119:            struct cmsghdr      cmhdr;
        !           120:            char                cmdata[128 - sizeof(struct cmsghdr)];
        !           121:     } cm;
        !           122:     char data[128];
        !           123: } cbuf;
        !           124: #define control cbuf.data
        !           125: struct msghdr msghdr = {
        !           126:        name, sizeof(name),
        !           127:        iov, sizeof(iov)/sizeof(iov[1]),
        !           128:        control, sizeof control,
        !           129:        0 /* flags */
        !           130: };
        !           131: 
        !           132: tisink()
        !           133: {
        !           134:        int x, s, pid, on = 1, loop = 0, n;
        !           135:        extern int errno;
        !           136: 
        !           137:        try(socket, (AF_CCITT, SOCK_STREAM, 0),"");
        !           138: 
        !           139:        s = x;
        !           140: 
        !           141:        sx25->x25_opts.op_flags |= X25_MQBIT;
        !           142:        try(bind, (s, (struct sockaddr *) sx25, sx25->x25_len), "");
        !           143: 
        !           144:        /*try(setsockopt, (s, SOL_SOCKET, SO_DEBUG, &on, sizeof (on)), ""); */
        !           145: 
        !           146:        try(listen, (s, 5), "");
        !           147:        for(;;) {
        !           148:                int child, ns;
        !           149:                int addrlen = sizeof(faddr);
        !           150:                char childname[50];
        !           151: 
        !           152:                try (accept, (s, &faddr, &addrlen), "");
        !           153:                ns = x;
        !           154:                dumpit("connection from:", &faddr, sizeof faddr);
        !           155:                if (mynamep || intercept) {
        !           156:                        addrlen = sizeof(faddr);
        !           157:                        try (getsockname, (ns, &faddr, &addrlen), "");
        !           158:                        dumpit("connected as:", &faddr, addrlen);
        !           159:                }
        !           160:                loop++;
        !           161:                if (loop > 3) myexit(0);
        !           162:                if (forkp) {
        !           163:                        try(fork, (), "");
        !           164:                } else
        !           165:                        x = 0;
        !           166:                if (x == 0)  {
        !           167:                    long n, count = 0, cn, flags;
        !           168:                    records = 0;
        !           169: #ifdef ISODE_MODE
        !           170:                    if (isode_mode) {
        !           171:                        static char fdbuf[10];
        !           172:                        static char *nargv[4] =
        !           173:                            {"/usr/sbin/isod.tsap", fdbuf, "", 0};
        !           174:                        sprintf(fdbuf, "Z%d", ns);
        !           175:                        old_isod_main(3, nargv, xenvp);
        !           176:                    } else
        !           177: #endif
        !           178:                    for (;;) {
        !           179:                        msghdr.msg_iovlen = 1;
        !           180:                        msghdr.msg_controllen = sizeof(control);
        !           181:                        iov->iov_len = sizeof(readbuf);
        !           182:                        n = recvmsg(ns, &msghdr, 0);
        !           183:                        flags = msghdr.msg_flags;
        !           184:                        count++;
        !           185:                        dbprintf("recvmsg from child %d got %d ctl %d flags %x\n",
        !           186:                                    getpid(), n, (cn = msghdr.msg_controllen),
        !           187:                                        flags);
        !           188:                        fflush(stdout);
        !           189:                        if (cn && verbose)
        !           190:                                dumpit("control data:\n", control, cn);
        !           191:                        if (n < 0) {
        !           192:                                fprintf(stderr, "errno is %d\n", errno);
        !           193:                                perror("recvmsg");
        !           194:                                /*sleep (10);*/
        !           195:                                break;
        !           196:                        } else {
        !           197:                                if (verbose)
        !           198:                                        dumpit("data:\n", readbuf, n);
        !           199:                        }
        !           200:                        if (echop) {
        !           201:                                n = answerback(flags, n, ns);
        !           202:                        }
        !           203:                        if (flags & MSG_EOR)
        !           204:                                records++;
        !           205:                        if (playtag && n == sizeof(your_it) && (flags & MSG_EOR)
        !           206:                            && bcmp(readbuf, your_it, n) == 0) {
        !           207:                                printf("Answering back!!!!\n");
        !           208:                                answerback(flags, n, ns);
        !           209:                                answerback(flags, n, ns);
        !           210:                        }
        !           211:                        errno = 0;
        !           212:                    }
        !           213:                }
        !           214:                myexit(0);
        !           215:        }
        !           216: }
        !           217: answerback(flags, n, ns)
        !           218: {
        !           219:        msghdr.msg_controllen = 0;
        !           220:        msghdr.msg_iovlen = 1;
        !           221:        iov->iov_len = n;
        !           222:        n = sendmsg(ns, &msghdr, flags);
        !           223:        dbprintf("echoed %d\n", n);
        !           224:        return n;
        !           225: }
        !           226: 
        !           227: dumpit(what, where, n)
        !           228: char *what; unsigned short *where; int n;
        !           229: {
        !           230:        unsigned short *s = where;
        !           231:        unsigned short *z = where + (n+1)/2;
        !           232:        int count = 0;
        !           233:        printf(what);
        !           234:        while(s < z) {
        !           235:                count++;
        !           236:                printf("%x ",*s++);
        !           237:                if ((count & 15) == 0)
        !           238:                        putchar('\n');
        !           239:        }
        !           240:        if (count & 15)
        !           241:                putchar('\n');
        !           242:        fflush(stdout);
        !           243: }
        !           244: myexit(n)
        !           245: {
        !           246:        fflush(stderr);
        !           247:        printf("got %d records\n", records);
        !           248:        fflush(stdout);
        !           249:        exit(n);
        !           250: }

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