slattach.tproj/slattach.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 1988, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  *
  29  * This code is derived from software contributed to Berkeley by
  30  * Rick Adams.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  * 3. All advertising materials mentioning features or use of this software
  41  *    must display the following acknowledgement:
  42  *      This product includes software developed by the University of
  43  *      California, Berkeley and its contributors.
  44  * 4. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  */
  60
  61
  62 #include <sys/param.h>
  63 #include <sgtty.h>
  64 #include <sys/socket.h>
  65 #include <netinet/in.h>
  66 #include <net/if.h>
  67 #include <netdb.h>
  68 #include <fcntl.h>
  69 #include <stdio.h>
  70 #include <paths.h>
  71
  72 #define DEFAULT_BAUD    9600
  73 int     slipdisc = SLIPDISC;
  74
  75 __private_extern__
  76 char    devname[32] = { '\0' };
  77 char    hostname[MAXHOSTNAMELEN];
  78
  79 main(argc, argv)
  80         int argc;
  81         char *argv[];
  82 {
  83         register int fd;
  84         register char *dev = argv[1];
  85         struct sgttyb sgtty;
  86         int     speed;
  87
  88         if (argc < 2 || argc > 3) {
  89                 fprintf(stderr, "usage: %s ttyname [baudrate]\n", argv[0]);
  90                 exit(1);
  91         }
  92         speed = argc == 3 ? findspeed(atoi(argv[2])) : findspeed(DEFAULT_BAUD);
  93         if (speed == 0) {
  94                 fprintf(stderr, "unknown speed %s", argv[2]);
  95                 exit(1);
  96         }
  97         if (strncmp(_PATH_DEV, dev, sizeof(_PATH_DEV) - 1)) {
  98                 (void)snprintf(devname, sizeof(devname),
  99                     "%s%s", _PATH_DEV, dev);
 100                 dev = devname;
 101         }
 102         if ((fd = open(dev, O_RDWR | O_NDELAY)) < 0) {
 103                 perror(dev);
 104                 exit(1);
 105         }
 106         sgtty.sg_flags = RAW | ANYP;
 107         sgtty.sg_ispeed = sgtty.sg_ospeed = speed;
 108         if (ioctl(fd, TIOCSETP, &sgtty) < 0) {
 109                 perror("ioctl(TIOCSETP)");
 110                 exit(1);
 111         }
 112         if (ioctl(fd, TIOCSETD, &slipdisc) < 0) {
 113                 perror("ioctl(TIOCSETD)");
 114                 exit(1);
 115         }
 116
 117         if (fork() > 0)
 118                 exit(0);
 119         for (;;)
 120                 sigpause(0L);
 121 }
 122
 123 struct sg_spds {
 124         int sp_val, sp_name;
 125 }       spds[] = {
 126 #ifdef B50
 127         { 50, B50 },
 128 #endif
 129 #ifdef B75
 130         { 75, B75 },
 131 #endif
 132 #ifdef B110
 133         { 110, B110 },
 134 #endif
 135 #ifdef B150
 136         { 150, B150 },
 137 #endif
 138 #ifdef B200
 139         { 200, B200 },
 140 #endif
 141 #ifdef B300
 142         { 300, B300 },
 143 #endif
 144 #ifdef B600
 145         { 600, B600 },
 146 #endif
 147 #ifdef B1200
 148         { 1200, B1200 },
 149 #endif
 150 #ifdef B1800
 151         { 1800, B1800 },
 152 #endif
 153 #ifdef B2000
 154         { 2000, B2000 },
 155 #endif
 156 #ifdef B2400
 157         { 2400, B2400 },
 158 #endif
 159 #ifdef B3600
 160         { 3600, B3600 },
 161 #endif
 162 #ifdef B4800
 163         { 4800, B4800 },
 164 #endif
 165 #ifdef B7200
 166         { 7200, B7200 },
 167 #endif
 168 #ifdef B9600
 169         { 9600, B9600 },
 170 #endif
 171 #ifdef EXTA
 172         { 19200, EXTA },
 173 #endif
 174 #ifdef EXTB
 175         { 38400, EXTB },
 176 #endif
 177         { 0, 0 }
 178 };
 179
 180 findspeed(speed)
 181         register int speed;
 182 {
 183         register struct sg_spds *sp;
 184
 185         sp = spds;
 186         while (sp->sp_val && sp->sp_val != speed)
 187                 sp++;
 188         return (sp->sp_name);
 189 }