1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 */ 6 7 #ifndef lint 8 static char sccsid[] = "@(#)v3451.c 5.1 (Berkeley) 04/30/85"; 9 #endif not lint 10 11 /* 12 * Routines for calling up on a Vadic 3451 Modem 13 */ 14 #include "tip.h" 15 16 static jmp_buf Sjbuf; 17 18 v3451_dialer(num, acu) 19 register char *num; 20 char *acu; 21 { 22 int ok, (*func)(); 23 int slow = number(value(BAUDRATE)) < 1200, rw = 2; 24 char phone[50]; 25 #ifdef ACULOG 26 char line[80]; 27 #endif 28 29 /* 30 * Get in synch 31 */ 32 vawrite("I\r", 1 + slow); 33 vawrite("I\r", 1 + slow); 34 vawrite("I\r", 1 + slow); 35 vawrite("\005\r", 2 + slow); 36 if (!expect("READY")) { 37 printf("can't synchronize with vadic 3451\n"); 38 #ifdef ACULOG 39 logent(value(HOST), num, "vadic", "can't synch up"); 40 #endif 41 return (0); 42 } 43 ioctl(FD, TIOCHPCL, 0); 44 sleep(1); 45 vawrite("D\r", 2 + slow); 46 if (!expect("NUMBER?")) { 47 printf("Vadic will not accept dial command\n"); 48 #ifdef ACULOG 49 logent(value(HOST), num, "vadic", "will not accept dial"); 50 #endif 51 return (0); 52 } 53 strcpy(phone, num); 54 strcat(phone, "\r"); 55 vawrite(phone, 1 + slow); 56 if (!expect(phone)) { 57 printf("Vadic will not accept phone number\n"); 58 #ifdef ACULOG 59 logent(value(HOST), num, "vadic", "will not accept number"); 60 #endif 61 return (0); 62 } 63 func = signal(SIGINT,SIG_IGN); 64 /* 65 * You cannot interrupt the Vadic when its dialing; 66 * even dropping DTR does not work (definitely a 67 * brain damaged design). 68 */ 69 vawrite("\r", 1 + slow); 70 vawrite("\r", 1 + slow); 71 if (!expect("DIALING:")) { 72 printf("Vadic failed to dial\n"); 73 #ifdef ACULOG 74 logent(value(HOST), num, "vadic", "failed to dial"); 75 #endif 76 return (0); 77 } 78 if (boolean(value(VERBOSE))) 79 printf("\ndialing..."); 80 ok = expect("ON LINE"); 81 signal(SIGINT, func); 82 if (!ok) { 83 printf("call failed\n"); 84 #ifdef ACULOG 85 logent(value(HOST), num, "vadic", "call failed"); 86 #endif 87 return (0); 88 } 89 ioctl(FD, TIOCFLUSH, &rw); 90 return (1); 91 } 92 93 v3451_disconnect() 94 { 95 96 close(FD); 97 } 98 99 v3451_abort() 100 { 101 102 close(FD); 103 } 104 105 static 106 vawrite(cp, delay) 107 register char *cp; 108 int delay; 109 { 110 111 for (; *cp; sleep(delay), cp++) 112 write(FD, cp, 1); 113 } 114 115 static 116 expect(cp) 117 register char *cp; 118 { 119 char buf[300]; 120 register char *rp = buf; 121 int alarmtr(), timeout = 30, online = 0; 122 123 if (strcmp(cp, "\"\"") == 0) 124 return (1); 125 *rp = 0; 126 /* 127 * If we are waiting for the Vadic to complete 128 * dialing and get a connection, allow more time 129 * Unfortunately, the Vadic times out 24 seconds after 130 * the last digit is dialed 131 */ 132 online = strcmp(cp, "ON LINE") == 0; 133 if (online) 134 timeout = number(value(DIALTIMEOUT)); 135 signal(SIGALRM, alarmtr); 136 if (setjmp(Sjbuf)) 137 return (0); 138 alarm(timeout); 139 while (notin(cp, buf) && rp < buf + sizeof (buf) - 1) { 140 if (online && notin("FAILED CALL", buf) == 0) 141 return (0); 142 if (read(FD, rp, 1) < 0) { 143 alarm(0); 144 return (0); 145 } 146 if (*rp &= 0177) 147 rp++; 148 *rp = '\0'; 149 } 150 alarm(0); 151 return (1); 152 } 153 154 static 155 alarmtr() 156 { 157 158 longjmp(Sjbuf, 1); 159 } 160 161 static 162 notin(sh, lg) 163 char *sh, *lg; 164 { 165 166 for (; *lg; lg++) 167 if (prefix(sh, lg)) 168 return (0); 169 return (1); 170 } 171 172 static 173 prefix(s1, s2) 174 register char *s1, *s2; 175 { 176 register char c; 177 178 while ((c = *s1++) == *s2++) 179 if (c == '\0') 180 return (1); 181 return (c == '\0'); 182 } 183