projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| f49909f5 | 1 | /*- |
| 17e8cbca KB |
2 | * Copyright (c) 1985, 1993 |
| 3 | * The Regents of the University of California. All rights reserved. | |
| f49909f5 KB |
4 | * |
| 5 | * %sccs.include.proprietary.c% | |
| 6 | */ | |
| 7 | ||
| 1f59c325 | 8 | #ifndef lint |
| 17e8cbca | 9 | static char sccsid[] = "@(#)mic.c 8.1 (Berkeley) %G%"; |
| f49909f5 | 10 | #endif /* not lint */ |
| 1f59c325 | 11 | |
| ddf4e66c | 12 | #include "condevs.h" |
| 1f59c325 RC |
13 | #ifdef MICOM |
| 14 | ||
| 15 | /* | |
| 16 | * micopn: establish connection through a micom. | |
| 17 | * Returns descriptor open to tty for reading and writing. | |
| 18 | * Negative values (-1...-7) denote errors in connmsg. | |
| 19 | * Be sure to disconnect tty when done, via HUPCL or stty 0. | |
| 20 | */ | |
| 21 | micopn(flds) | |
| 22 | register char *flds[]; | |
| 23 | { | |
| 24 | extern errno; | |
| 25 | char *rindex(), *fdig(), dcname[20]; | |
| 26 | int dh, ok = 0, speed; | |
| 27 | register struct condev *cd; | |
| 28 | register FILE *dfp; | |
| 29 | struct Devices dev; | |
| 30 | ||
| 31 | dfp = fopen(DEVFILE, "r"); | |
| 32 | ASSERT(dfp != NULL, "Can't open", DEVFILE, 0); | |
| 33 | ||
| 34 | signal(SIGALRM, alarmtr); | |
| 35 | dh = -1; | |
| 36 | for(cd = condevs; ((cd->CU_meth != NULL)&&(dh < 0)); cd++) { | |
| 37 | if (snccmp(flds[F_LINE], cd->CU_meth) == SAME) { | |
| 38 | fseek(dfp, (off_t)0, 0); | |
| 39 | while(rddev(dfp, &dev) != FAIL) { | |
| 40 | if (strcmp(flds[F_CLASS], dev.D_class) != SAME) | |
| 41 | continue; | |
| 42 | if (snccmp(flds[F_LINE], dev.D_type) != SAME) | |
| 43 | continue; | |
| 44 | if (mlock(dev.D_line) == FAIL) | |
| 45 | continue; | |
| 46 | ||
| 47 | sprintf(dcname, "/dev/%s", dev.D_line); | |
| 48 | getnextfd(); | |
| 49 | alarm(10); | |
| 50 | if (setjmp(Sjbuf)) { | |
| 51 | delock(dev.D_line); | |
| 52 | logent(dev.D_line,"micom open TIMEOUT"); | |
| 53 | dh = -1; | |
| 54 | break; | |
| 55 | } | |
| 56 | dh = open(dcname, 2); | |
| 57 | alarm(0); | |
| 58 | next_fd = -1; | |
| 59 | if (dh > 0) { | |
| 60 | break; | |
| 61 | } | |
| 62 | devSel[0] = '\0'; | |
| 63 | delock(dev.D_line); | |
| 64 | } | |
| 65 | } | |
| 66 | } | |
| 67 | fclose(dfp); | |
| 68 | if (dh < 0) | |
| 69 | return CF_NODEV; | |
| 70 | ||
| 71 | speed = atoi(fdig(flds[F_CLASS])); | |
| 72 | fixline(dh, speed); | |
| 73 | sleep(1); | |
| 74 | ||
| 75 | /* negotiate with micom */ | |
| 76 | if (speed != 4800) /* damn their eyes! */ | |
| 77 | write(dh, "\r", 1); | |
| 78 | else | |
| 79 | write(dh, " ", 1); | |
| 80 | ||
| 81 | DEBUG(4, "wanted %s ", "SELECTION"); | |
| 82 | ok = expect("SELECTION", dh); | |
| 83 | DEBUG(4, "got %s\n", ok ? "?" : "that"); | |
| 84 | if (ok == 0) { | |
| 85 | write(dh, flds[F_PHONE], strlen(flds[F_PHONE])); | |
| 86 | sleep(1); | |
| 87 | write(dh, "\r", 1); | |
| 88 | DEBUG(4, "wanted %s ", "GO"); | |
| 89 | ok = expect("GO", dh); | |
| 90 | DEBUG(4, "got %s\n", ok ? "?" : "that"); | |
| 91 | } | |
| 92 | ||
| 93 | if (ok != 0) { | |
| 94 | if (dh > 2) | |
| 95 | close(dh); | |
| 96 | DEBUG(4, "micom failed\n", ""); | |
| 97 | delock(dev.D_line); | |
| 98 | return(CF_DIAL); | |
| 99 | } | |
| 100 | else | |
| 101 | DEBUG(4, "micom ok\n", ""); | |
| 102 | ||
| 103 | CU_end = cd->CU_clos; | |
| 104 | strcat(devSel, dev.D_line); /* for later unlock */ | |
| 105 | return dh; | |
| 106 | } | |
| 107 | ||
| 108 | miccls(fd) | |
| 109 | register int fd; | |
| 110 | { | |
| 111 | ||
| 112 | if (fd > 0) { | |
| 113 | close(fd); | |
| 114 | delock(devSel); | |
| 115 | } | |
| 116 | } | |
| 117 | #endif MICOM |