1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)v3451.c 8.1 (Berkeley) 06/06/93"; 10 #endif /* not lint */ 11 12 /* 13 * Routines for calling up on a Vadic 3451 Modem 14 */ 15 #include "tip.h" 16 17 static jmp_buf Sjbuf; 18 19 v3451_dialer(num, acu) 20 register char *num; 21 char *acu; 22 { 23 sig_t func; 24 int ok; 25 int slow = number(value(BAUDRATE)) < 1200, rw = 2; 26 char phone[50]; 27 #ifdef ACULOG 28 char line[80]; 29 #endif 30 static int expect(); 31 static void vawrite(); 32 33 /* 34 * Get in synch 35 */ 36 vawrite("I\r", 1 + slow); 37 vawrite("I\r", 1 + slow); 38 vawrite("I\r", 1 + slow); 39 vawrite("\005\r", 2 + slow); 40 if (!expect("READY")) { 41 printf("can't synchronize with vadic 3451\n"); 42 #ifdef ACULOG 43 logent(value(HOST), num, "vadic", "can't synch up"); 44 #endif 45 return (0); 46 } 47 ioctl(FD, TIOCHPCL, 0); 48 sleep(1); 49 vawrite("D\r", 2 + slow); 50 if (!expect("NUMBER?")) { 51 printf("Vadic will not accept dial command\n"); 52 #ifdef ACULOG 53 logent(value(HOST), num, "vadic", "will not accept dial"); 54 #endif 55 return (0); 56 } 57 strcpy(phone, num); 58 strcat(phone, "\r"); 59 vawrite(phone, 1 + slow); 60 if (!expect(phone)) { 61 printf("Vadic will not accept phone number\n"); 62 #ifdef ACULOG 63 logent(value(HOST), num, "vadic", "will not accept number"); 64 #endif 65 return (0); 66 } 67 func = signal(SIGINT,SIG_IGN); 68 /* 69 * You cannot interrupt the Vadic when its dialing; 70 * even dropping DTR does not work (definitely a 71 * brain damaged design). 72 */ 73 vawrite("\r", 1 + slow); 74 vawrite("\r", 1 + slow); 75 if (!expect("DIALING:")) { 76 printf("Vadic failed to dial\n"); 77 #ifdef ACULOG 78 logent(value(HOST), num, "vadic", "failed to dial"); 79 #endif 80 return (0); 81 } 82 if (boolean(value(VERBOSE))) 83 printf("\ndialing..."); 84 ok = expect("ON LINE"); 85 signal(SIGINT, func); 86 if (!ok) { 87 printf("call failed\n"); 88 #ifdef ACULOG 89 logent(value(HOST), num, "vadic", "call failed"); 90 #endif 91 return (0); 92 } 93 ioctl(FD, TIOCFLUSH, &rw); 94 return (1); 95 } 96 97 v3451_disconnect() 98 { 99 100 close(FD); 101 } 102 103 v3451_abort() 104 { 105 106 close(FD); 107 } 108 109 static void 110 vawrite(cp, delay) 111 register char *cp; 112 int delay; 113 { 114 115 for (; *cp; sleep(delay), cp++) 116 write(FD, cp, 1); 117 } 118 119 static 120 expect(cp) 121 register char *cp; 122 { 123 char buf[300]; 124 register char *rp = buf; 125 int timeout = 30, online = 0; 126 static int notin(); 127 static void alarmtr(); 128 129 if (strcmp(cp, "\"\"") == 0) 130 return (1); 131 *rp = 0; 132 /* 133 * If we are waiting for the Vadic to complete 134 * dialing and get a connection, allow more time 135 * Unfortunately, the Vadic times out 24 seconds after 136 * the last digit is dialed 137 */ 138 online = strcmp(cp, "ON LINE") == 0; 139 if (online) 140 timeout = number(value(DIALTIMEOUT)); 141 signal(SIGALRM, alarmtr); 142 if (setjmp(Sjbuf)) 143 return (0); 144 alarm(timeout); 145 while (notin(cp, buf) && rp < buf + sizeof (buf) - 1) { 146 if (online && notin("FAILED CALL", buf) == 0) 147 return (0); 148 if (read(FD, rp, 1) < 0) { 149 alarm(0); 150 return (0); 151 } 152 if (*rp &= 0177) 153 rp++; 154 *rp = '\0'; 155 } 156 alarm(0); 157 return (1); 158 } 159 160 static void 161 alarmtr() 162 { 163 longjmp(Sjbuf, 1); 164 } 165 166 static int 167 notin(sh, lg) 168 char *sh, *lg; 169 { 170 static int prefix(); 171 172 for (; *lg; lg++) 173 if (prefix(sh, lg)) 174 return (0); 175 return (1); 176 } 177 178 static 179 prefix(s1, s2) 180 register char *s1, *s2; 181 { 182 register char c; 183 184 while ((c = *s1++) == *s2++) 185 if (c == '\0') 186 return (1); 187 return (c == '\0'); 188 } 189