Commit | Line | Data |
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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 | ||
f76694db | 8 | #ifndef lint |
17e8cbca | 9 | static char sccsid[] = "@(#)dn.c 8.1 (Berkeley) %G%"; |
f49909f5 | 10 | #endif /* not lint */ |
f76694db | 11 | |
ddf4e66c | 12 | #include "condevs.h" |
de465ec0 | 13 | #define ACULAST "-<" |
f76694db RC |
14 | |
15 | /*** | |
16 | * dnopn(ph, flds, dev) dial remote machine | |
17 | * | |
18 | * return codes: | |
19 | * file descriptor - succeeded | |
20 | * FAIL - failed | |
21 | */ | |
22 | dnopn(ph, flds, dev) | |
23 | char *ph; | |
24 | char *flds[]; | |
25 | struct Devices *dev; | |
26 | { | |
27 | char dcname[20], dnname[20], phone[MAXPH+2], c = 0; | |
de465ec0 | 28 | #ifdef USG |
f76694db | 29 | struct termio ttbuf; |
de465ec0 | 30 | #endif USG |
f76694db RC |
31 | int dnf, dcf; |
32 | int nw, lt, pid, status; | |
33 | unsigned timelim; | |
de465ec0 JB |
34 | #ifdef TIOCFLUSH |
35 | int zero = 0; | |
36 | #endif TIOCFLUSH | |
f76694db RC |
37 | |
38 | sprintf(dnname, "/dev/%s", dev->D_calldev); | |
39 | errno = 0; | |
40 | ||
41 | if (setjmp(Sjbuf)) { | |
42 | logent(dnname, "CAN'T OPEN"); | |
43 | DEBUG(4, "%s Open timed out\n", dnname); | |
44 | return(CF_NODEV); | |
45 | } | |
46 | signal(SIGALRM, alarmtr); | |
47 | getnextfd(); | |
48 | alarm(10); | |
49 | dnf = open(dnname, 1); | |
50 | alarm(0); | |
51 | next_fd = -1; | |
52 | if (dnf < 0 && errno == EACCES) { | |
53 | logent(dnname, "CAN'T OPEN"); | |
54 | logent("DEVICE", "NO"); | |
55 | return CF_NODEV; | |
56 | } | |
57 | fioclex(dnf); | |
58 | ||
59 | sprintf(dcname, "/dev/%s", dev->D_line); | |
60 | sprintf(phone, "%s%s", ph, ACULAST); | |
61 | DEBUG(4, "dc - %s, ", dcname); | |
62 | DEBUG(4, "acu - %s\n", dnname); | |
63 | pid = 0; | |
64 | if (setjmp(Sjbuf)) { | |
65 | logent("DIALUP DN write", "TIMEOUT"); | |
66 | if (pid) | |
67 | kill(pid, 9); | |
68 | delock(dev->D_line); | |
69 | if (dnf) | |
70 | close(dnf); | |
71 | return CF_DIAL; | |
72 | } | |
73 | signal(SIGALRM, alarmtr); | |
74 | timelim = 5 * strlen(phone); | |
75 | alarm(timelim < 30 ? 30 : timelim); | |
76 | if ((pid = fork()) == 0) { | |
77 | sleep(2); | |
78 | fclose(stdin); | |
79 | fclose(stdout); | |
80 | #ifdef TIOCFLUSH | |
de465ec0 JB |
81 | ioctl(dnf, TIOCFLUSH, &zero); |
82 | #endif TIOCFLUSH | |
f76694db RC |
83 | nw = write(dnf, phone, lt = strlen(phone)); |
84 | if (nw != lt) { | |
85 | logent("DIALUP ACU write", _FAILED); | |
86 | exit(1); | |
87 | } | |
88 | DEBUG(4, "ACU write ok\n", CNULL); | |
89 | exit(0); | |
90 | } | |
91 | /* open line - will return on carrier */ | |
92 | /* RT needs a sleep here because it returns immediately from open */ | |
93 | ||
94 | #if RT | |
95 | sleep(15); | |
96 | #endif | |
97 | ||
98 | getnextfd(); | |
99 | errno = 0; | |
100 | dcf = open(dcname, 2); | |
101 | next_fd = -1; | |
102 | if (dcf < 0 && errno == EACCES) | |
103 | logent(dcname, "CAN'T OPEN"); | |
104 | DEBUG(4, "dcf is %d\n", dcf); | |
105 | if (dcf < 0) { | |
106 | logent("DIALUP LINE open", _FAILED); | |
107 | alarm(0); | |
108 | kill(pid, 9); | |
109 | close(dnf); | |
110 | delock(dev->D_line); | |
111 | return CF_DIAL; | |
112 | } | |
113 | while ((nw = wait(<)) != pid && nw != -1) | |
114 | ; | |
de465ec0 | 115 | #ifdef USG |
f76694db RC |
116 | ioctl(dcf, TCGETA, &ttbuf); |
117 | if(!(ttbuf.c_cflag & HUPCL)) { | |
118 | ttbuf.c_cflag |= HUPCL; | |
119 | ioctl(dcf, TCSETA, &ttbuf); | |
120 | } | |
de465ec0 | 121 | #endif USG |
f76694db RC |
122 | alarm(0); |
123 | fflush(stdout); | |
124 | fixline(dcf, dev->D_speed); | |
125 | DEBUG(4, "Fork Stat %o\n", lt); | |
126 | if (lt != 0) { | |
127 | close(dcf); | |
128 | if (dnf) | |
129 | close(dnf); | |
130 | delock(dev->D_line); | |
131 | return CF_DIAL; | |
132 | } | |
133 | return dcf; | |
134 | } | |
135 | ||
136 | /*** | |
137 | * dncls() close dn type call unit | |
138 | * | |
139 | * return codes: None | |
140 | */ | |
141 | dncls(fd) | |
142 | register int fd; | |
143 | { | |
144 | if (fd > 0) { | |
145 | close(fd); | |
146 | sleep(5); | |
147 | delock(devSel); | |
148 | } | |
149 | } |