1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. 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 * $FreeBSD$ 34 */ 35 36 #ifndef lint 37 static char sccsid[] = "@(#)v831.c 8.1 (Berkeley) 6/6/93"; 38 #endif /* not lint */ 39 40 /* 41 * Routines for dialing up on Vadic 831 42 */ 43 #include "tipconf.h" 44 #include "tip.h" 45 #include <errno.h> 46 47 int v831_abort(); 48 static void alarmtr(); 49 50 static jmp_buf jmpbuf; 51 static int child = -1; 52 53 v831_dialer(num, acu) 54 char *num, *acu; 55 { 56 int status, pid, connected = 1; 57 register int timelim; 58 static int dialit(); 59 60 if (boolean(value(VERBOSE))) 61 printf("\nstarting call..."); 62 #ifdef DEBUG 63 printf ("(acu=%s)\n", acu); 64 #endif 65 if ((AC = open(acu, O_RDWR)) < 0) { 66 if (errno == EBUSY) 67 printf("line busy..."); 68 else 69 printf("acu open error..."); 70 return (0); 71 } 72 if (setjmp(jmpbuf)) { 73 kill(child, SIGKILL); 74 close(AC); 75 return (0); 76 } 77 signal(SIGALRM, alarmtr); 78 timelim = 5 * strlen(num); 79 alarm(timelim < 30 ? 30 : timelim); 80 if ((child = fork()) == 0) { 81 /* 82 * ignore this stuff for aborts 83 */ 84 signal(SIGALRM, SIG_IGN); 85 signal(SIGINT, SIG_IGN); 86 signal(SIGQUIT, SIG_IGN); 87 sleep(2); 88 exit(dialit(num, acu) != 'A'); 89 } 90 /* 91 * open line - will return on carrier 92 */ 93 if ((FD = open(DV, O_RDWR)) < 0) { 94 #ifdef DEBUG 95 printf("(after open, errno=%d)\n", errno); 96 #endif 97 if (errno == EIO) 98 printf("lost carrier..."); 99 else 100 printf("dialup line open failed..."); 101 alarm(0); 102 kill(child, SIGKILL); 103 close(AC); 104 return (0); 105 } 106 alarm(0); 107 #ifdef notdef 108 ioctl(AC, TIOCHPCL, 0); 109 #endif 110 signal(SIGALRM, SIG_DFL); 111 while ((pid = wait(&status)) != child && pid != -1) 112 ; 113 if (status) { 114 close(AC); 115 return (0); 116 } 117 return (1); 118 } 119 120 static void 121 alarmtr() 122 { 123 alarm(0); 124 longjmp(jmpbuf, 1); 125 } 126 127 /* 128 * Insurance, for some reason we don't seem to be 129 * hanging up... 130 */ 131 v831_disconnect() 132 { 133 sleep(2); 134 #ifdef DEBUG 135 printf("[disconnect: FD=%d]\n", FD); 136 #endif 137 if (FD > 0) { 138 ioctl(FD, TIOCCDTR, 0); 139 acu_setspeec (0); 140 ioctl(FD, TIOCNXCL, 0); 141 } 142 close(FD); 143 } 144 145 v831_abort() 146 { 147 148 #ifdef DEBUG 149 printf("[abort: AC=%d]\n", AC); 150 #endif 151 sleep(2); 152 if (child > 0) 153 kill(child, SIGKILL); 154 if (AC > 0) 155 ioctl(FD, TIOCNXCL, 0); 156 close(AC); 157 if (FD > 0) 158 ioctl(FD, TIOCCDTR, 0); 159 close(FD); 160 } 161 162 /* 163 * Sigh, this probably must be changed at each site. 164 */ 165 struct vaconfig { 166 char *vc_name; 167 char vc_rack; 168 char vc_modem; 169 } vaconfig[] = { 170 { "/dev/cua0",'4','0' }, 171 { "/dev/cua1",'4','1' }, 172 { 0 } 173 }; 174 175 #define pc(x) (c = x, write(AC,&c,1)) 176 #define ABORT 01 177 #define SI 017 178 #define STX 02 179 #define ETX 03 180 181 static int 182 dialit(phonenum, acu) 183 register char *phonenum; 184 char *acu; 185 { 186 register struct vaconfig *vp; 187 char c; 188 int i, two = 2; 189 static char *sanitize(); 190 191 phonenum = sanitize(phonenum); 192 #ifdef DEBUG 193 printf ("(dial phonenum=%s)\n", phonenum); 194 #endif 195 if (*phonenum == '<' && phonenum[1] == 0) 196 return ('Z'); 197 for (vp = vaconfig; vp->vc_name; vp++) 198 if (strcmp(vp->vc_name, acu) == 0) 199 break; 200 if (vp->vc_name == 0) { 201 printf("Unable to locate dialer (%s)\n", acu); 202 return ('K'); 203 } 204 { 205 #if HAVE_TERMIOS 206 struct termios termios; 207 tcgetattr (AC, &termios); 208 termios.c_iflag = 0; 209 #ifndef _POSIX_SOURCE 210 termios.c_lflag = (PENDIN|ECHOKE|ECHOE); 211 #else 212 termios.c_lflag = (PENDIN|ECHOE); 213 #endif 214 termios.c_cflag = (CLOCAL|HUPCL|CREAD|CS8); 215 termios.c_ispeed = termios.c_ospeed = B2400; 216 tcsetattr (AC, TCSANOW, &termios); 217 #else /* HAVE_TERMIOS */ 218 struct sgttyb cntrl; 219 ioctl(AC, TIOCGETP, &cntrl); 220 cntrl.sg_ispeed = cntrl.sg_ospeed = B2400; 221 cntrl.sg_flags = RAW | EVENP | ODDP; 222 ioctl(AC, TIOCSETP, &cntrl); 223 #endif 224 } 225 ioctl(AC, TIOCFLUSH, &two); 226 pc(STX); 227 pc(vp->vc_rack); 228 pc(vp->vc_modem); 229 while (*phonenum && *phonenum != '<') 230 pc(*phonenum++); 231 pc(SI); 232 pc(ETX); 233 sleep(1); 234 i = read(AC, &c, 1); 235 #ifdef DEBUG 236 printf("read %d chars, char=%c, errno %d\n", i, c, errno); 237 #endif 238 if (i != 1) 239 c = 'M'; 240 if (c == 'B' || c == 'G') { 241 char cc, oc = c; 242 243 pc(ABORT); 244 read(AC, &cc, 1); 245 #ifdef DEBUG 246 printf("abort response=%c\n", cc); 247 #endif 248 c = oc; 249 v831_disconnect(); 250 } 251 close(AC); 252 #ifdef DEBUG 253 printf("dialit: returns %c\n", c); 254 #endif 255 return (c); 256 } 257 258 static char * 259 sanitize(s) 260 register char *s; 261 { 262 static char buf[128]; 263 register char *cp; 264 265 for (cp = buf; *s; s++) { 266 if (!isdigit(*s) && *s == '<' && *s != '_') 267 continue; 268 if (*s == '_') 269 *s = '='; 270 *cp++ = *s; 271 } 272 *cp++ = 0; 273 return (buf); 274 } 275