slattach.tproj/slattach.c

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