1 /*- 2 * Copyright (c) 1985, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.proprietary.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)hys.c 8.1 (Berkeley) 06/06/93"; 10 #endif /* not lint */ 11 12 #include "condevs.h" 13 14 #ifdef USR2400 15 #define DROPDTR 16 /* 17 * The "correct" switch settings for a USR Courier 2400 are 18 * Dialin/out: 0 0 1 1 0 0 0 1 0 0 19 * Dialout only: 0 0 1 1 1 1 0 1 0 0 20 * where 0 = off and 1 = on 21 */ 22 #endif USR2400 23 24 /* 25 * hyspopn(telno, flds, dev) connect to hayes smartmodem (pulse call) 26 * hystopn(telno, flds, dev) connect to hayes smartmodem (tone call) 27 * char *flds[], *dev[]; 28 * 29 * return codes: 30 * >0 - file number - ok 31 * CF_DIAL,CF_DEVICE - failed 32 */ 33 34 hyspopn(telno, flds, dev) 35 char *telno, *flds[]; 36 struct Devices *dev; 37 { 38 return hysopn(telno, flds, dev, 0); 39 } 40 41 hystopn(telno, flds, dev) 42 char *telno, *flds[]; 43 struct Devices *dev; 44 { 45 return hysopn(telno, flds, dev, 1); 46 } 47 48 /* ARGSUSED */ 49 hysopn(telno, flds, dev, toneflag) 50 char *telno; 51 char *flds[]; 52 struct Devices *dev; 53 int toneflag; 54 { 55 extern errno; 56 char dcname[20]; 57 char cbuf[MAXPH]; 58 register char *cp; 59 register int i; 60 int dh = -1, nrings = 0; 61 62 sprintf(dcname, "/dev/%s", dev->D_line); 63 DEBUG(4, "dc - %s\n", dcname); 64 if (setjmp(Sjbuf)) { 65 logent(dcname, "TIMEOUT"); 66 if (dh >= 0) 67 hyscls(dh); 68 return CF_DIAL; 69 } 70 signal(SIGALRM, alarmtr); 71 getnextfd(); 72 alarm(10); 73 dh = open(dcname, 2); /* read/write */ 74 alarm(0); 75 76 /* modem is open */ 77 next_fd = -1; 78 if (dh >= 0) { 79 fixline(dh, dev->D_speed); 80 if (dochat(dev, flds, dh)) { 81 logent(dcname, "CHAT FAILED"); 82 hyscls(dh); 83 return CF_DIAL; 84 } 85 write(dh, "ATV1E0H\r", 8); 86 if (expect("OK\r\n", dh) != 0) { 87 logent(dcname, "HSM seems dead"); 88 hyscls(dh); 89 return CF_DIAL; 90 } 91 #ifdef USR2400 92 write(dh, "ATX6S7=44\r", 10); 93 if (expect("OK\r\n", dh) != 0) { 94 logent(dcname, "HSM seems dead"); 95 hyscls(dh); 96 return CF_DIAL; 97 } 98 #endif USR2400 99 if (toneflag) 100 write(dh, "\rATDT", 5); 101 else 102 #ifdef USR2400 103 write(dh, "\rATD", 4); 104 #else HAYES 105 write(dh, "\rATDP", 5); 106 #endif HAYES 107 write(dh, telno, strlen(telno)); 108 write(dh, "\r", 1); 109 110 if (setjmp(Sjbuf)) { 111 logent(dcname, "TIMEOUT"); 112 strcpy(devSel, dev->D_line); 113 hyscls(dh); 114 return CF_DIAL; 115 } 116 signal(SIGALRM, alarmtr); 117 alarm(2*MAXMSGTIME); 118 do { 119 cp = cbuf; 120 while (read(dh, cp ,1) == 1) 121 if (*cp >= ' ') 122 break; 123 while (++cp < &cbuf[MAXPH] && read(dh, cp, 1) == 1 && *cp != '\n') 124 ; 125 alarm(0); 126 *cp-- = '\0'; 127 if (*cp == '\r') 128 *cp = '\0'; 129 DEBUG(4,"\nGOT: %s", cbuf); 130 alarm(MAXMSGTIME); 131 } while ((strncmp(cbuf, "RING", 4) == 0 || 132 strncmp(cbuf, "RRING", 5) == 0) && nrings++ < 5); 133 if (strncmp(cbuf, "CONNECT", 7) != 0) { 134 logent(cbuf, _FAILED); 135 strcpy(devSel, dev->D_line); 136 hyscls(dh); 137 return CF_DIAL; 138 } 139 #undef DONTRESETBAUDRATE 140 #ifndef DONTRESETBAUDRATE 141 i = atoi(&cbuf[8]); 142 if (i > 0 && i != dev->D_speed) { 143 DEBUG(4,"Baudrate reset to %d\n", i); 144 fixline(dh, i); 145 } 146 #endif /* DONTRESETBAUDRATE */ 147 148 } 149 if (dh < 0) { 150 logent(dcname, "CAN'T OPEN"); 151 return dh; 152 } 153 DEBUG(4, "hayes ok\n", CNULL); 154 return dh; 155 } 156 157 hyscls(fd) 158 int fd; 159 { 160 char dcname[20]; 161 #ifdef DROPDTR 162 struct sgttyb hup, sav; 163 #endif 164 165 if (fd > 0) { 166 sprintf(dcname, "/dev/%s", devSel); 167 DEBUG(4, "Hanging up fd = %d\n", fd); 168 #ifdef DROPDTR 169 /* 170 * code to drop DTR -- change to 0 baud then back to default. 171 */ 172 gtty(fd, &hup); 173 gtty(fd, &sav); 174 hup.sg_ispeed = B0; 175 hup.sg_ospeed = B0; 176 stty(fd, &hup); 177 sleep(2); 178 stty(fd, &sav); 179 /* 180 * now raise DTR -- close the device & open it again. 181 */ 182 sleep(2); 183 close(fd); 184 sleep(2); 185 fd = open(dcname, 2); 186 stty(fd, &sav); 187 #else 188 sleep(3); 189 write(fd, "+++", 3); 190 #endif 191 sleep(3); 192 write(fd, "ATH\r", 4); 193 /* 194 if (expect("OK",fd) != 0) 195 logent(devSel, "HSM did not respond to ATZ"); 196 */ 197 sleep(1); 198 write(fd, "ATZ\r", 4); 199 sleep(1); 200 close(fd); 201 delock(devSel); 202 } 203 } 204