1 #ifndef lint 2 static char sccsid[] = "@(#)v3451.c 4.3 (Berkeley) 06/25/83"; 3 #endif 4 5 #ifdef V3451 6 /* 7 * Routines for calling up on a Vadic 3451 Modem 8 */ 9 #include "tip.h" 10 11 static jmp_buf Sjbuf; 12 13 v3451_dialer(num, acu) 14 register char *num; 15 char *acu; 16 { 17 int ok, (*func)(); 18 int slow = number(value(BAUDRATE)) < 1200, rw = 2; 19 char phone[50]; 20 #ifdef ACULOG 21 char line[80]; 22 #endif 23 24 /* 25 * Get in synch 26 */ 27 vawrite("I\r", 1 + slow); 28 vawrite("I\r", 1 + slow); 29 vawrite("I\r", 1 + slow); 30 vawrite("\005\r", 2 + slow); 31 if (!expect("READY")) { 32 printf("can't synchronize with vadic 3451\n"); 33 #ifdef ACULOG 34 logent(value(HOST), num, "vadic", "can't synch up"); 35 #endif 36 return (0); 37 } 38 ioctl(FD, TIOCHPCL, 0); 39 sleep(1); 40 vawrite("D\r", 2 + slow); 41 if (!expect("NUMBER?")) { 42 printf("Vadic will not accept dial command\n"); 43 #ifdef ACULOG 44 logent(value(HOST), num, "vadic", "will not accept dial"); 45 #endif 46 return (0); 47 } 48 strcpy(phone, num); 49 strcat(phone, "\r"); 50 vawrite(phone, 1 + slow); 51 if (!expect(phone)) { 52 printf("Vadic will not accept phone number\n"); 53 #ifdef ACULOG 54 logent(value(HOST), num, "vadic", "will not accept number"); 55 #endif 56 return (0); 57 } 58 func = signal(SIGINT,SIG_IGN); 59 /* 60 * You cannot interrupt the Vadic when its dialing; 61 * even dropping DTR does not work (definitely a 62 * brain damaged design). 63 */ 64 vawrite("\r", 1 + slow); 65 vawrite("\r", 1 + slow); 66 if (!expect("DIALING:")) { 67 printf("Vadic failed to dial\n"); 68 #ifdef ACULOG 69 logent(value(HOST), num, "vadic", "failed to dial"); 70 #endif 71 return (0); 72 } 73 if (boolean(value(VERBOSE))) 74 printf("\ndialing..."); 75 ok = expect("ON LINE"); 76 signal(SIGINT, func); 77 if (!ok) { 78 printf("call failed\n"); 79 #ifdef ACULOG 80 logent(value(HOST), num, "vadic", "call failed"); 81 #endif 82 return (0); 83 } 84 ioctl(FD, TIOCFLUSH, &rw); 85 return (1); 86 } 87 88 v3451_disconnect() 89 { 90 91 close(FD); 92 } 93 94 v3451_abort() 95 { 96 97 close(FD); 98 } 99 100 static 101 vawrite(cp, delay) 102 register char *cp; 103 int delay; 104 { 105 106 for (; *cp; sleep(delay), cp++) 107 write(FD, cp, 1); 108 } 109 110 static 111 expect(cp) 112 register char *cp; 113 { 114 char buf[300]; 115 register char *rp = buf; 116 int alarmtr(), timeout = 30, online = 0; 117 118 if (strcmp(cp, "\"\"") == 0) 119 return (1); 120 *rp = 0; 121 /* 122 * If we are waiting for the Vadic to complete 123 * dialing and get a connection, allow more time 124 * Unfortunately, the Vadic times out 24 seconds after 125 * the last digit is dialed 126 */ 127 online = strcmp(cp, "ON LINE") == 0; 128 if (online) 129 timeout = number(value(DIALTIMEOUT)); 130 signal(SIGALRM, alarmtr); 131 if (setjmp(Sjbuf)) 132 return (0); 133 alarm(timeout); 134 while (notin(cp, buf) && rp < buf + sizeof (buf) - 1) { 135 if (online && notin("FAILED CALL", buf) == 0) 136 return (0); 137 if (read(FD, rp, 1) < 0) { 138 alarm(0); 139 return (0); 140 } 141 if (*rp &= 0177) 142 rp++; 143 *rp = '\0'; 144 } 145 alarm(0); 146 return (1); 147 } 148 149 static 150 alarmtr() 151 { 152 153 longjmp(Sjbuf, 1); 154 } 155 156 static 157 notin(sh, lg) 158 char *sh, *lg; 159 { 160 161 for (; *lg; lg++) 162 if (prefix(sh, lg)) 163 return (0); 164 return (1); 165 } 166 167 static 168 prefix(s1, s2) 169 register char *s1, *s2; 170 { 171 register char c; 172 173 while ((c = *s1++) == *s2++) 174 if (c == '\0') 175 return (1); 176 return (c == '\0'); 177 } 178 #endif 179