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1.1 root 1: /*
2: * Copyright (c) 1983 Regents of the University of California.
3: * All rights reserved. The Berkeley software License Agreement
4: * specifies the terms and conditions for redistribution.
5: */
6:
7: #ifndef lint
8: static char sccsid[] = "@(#)remote.c 5.3 (Berkeley) 4/30/86";
9: #endif not lint
10:
11: # include "tip.h"
12:
13: /*
14: * Attributes to be gleened from remote host description
15: * data base.
16: */
17: static char **caps[] = {
18: &AT, &DV, &CM, &CU, &EL, &IE, &OE, &PN, &PR, &DI,
19: &ES, &EX, &FO, &RC, &RE, &PA
20: };
21:
22: static char *capstrings[] = {
23: "at", "dv", "cm", "cu", "el", "ie", "oe", "pn", "pr",
24: "di", "es", "ex", "fo", "rc", "re", "pa", 0
25: };
26:
27: char *rgetstr();
28:
29: static
30: getremcap(host)
31: register char *host;
32: {
33: int stat;
34: char tbuf[BUFSIZ];
35: static char buf[BUFSIZ/2];
36: char *bp = buf;
37: register char **p, ***q;
38:
39: if ((stat = rgetent(tbuf, host)) <= 0) {
40: if (DV ||
41: host[0] == '/' && access(DV = host, R_OK | W_OK) == 0) {
42: CU = DV;
43: HO = host;
44: HW = 1;
45: DU = 0;
46: if (!BR)
47: BR = DEFBR;
48: FS = DEFFS;
49: return;
50: }
51: fprintf(stderr, stat == 0 ?
52: "tip: unknown host %s\n" :
53: "tip: can't open host description file\n", host);
54: exit(3);
55: }
56:
57: for (p = capstrings, q = caps; *p != NULL; p++, q++)
58: if (**q == NULL)
59: **q = rgetstr(*p, &bp);
60: if (!BR && (BR = rgetnum("br")) < 0)
61: BR = DEFBR;
62: if ((FS = rgetnum("fs")) < 0)
63: FS = DEFFS;
64: if (DU < 0)
65: DU = 0;
66: else
67: DU = rgetflag("du");
68: if (DV == NOSTR) {
69: fprintf(stderr, "%s: missing device spec\n", host);
70: exit(3);
71: }
72: if (DU && CU == NOSTR)
73: CU = DV;
74: if (DU && PN == NOSTR) {
75: fprintf(stderr, "%s: missing phone number\n", host);
76: exit(3);
77: }
78:
79: HD = rgetflag("hd");
80:
81: /*
82: * This effectively eliminates the "hw" attribute
83: * from the description file
84: */
85: if (!HW)
86: HW = (CU == NOSTR) || (DU && equal(DV, CU));
87: HO = host;
88: /*
89: * see if uppercase mode should be turned on initially
90: */
91: if (rgetflag("ra"))
92: boolean(value(RAISE)) = 1;
93: if (rgetflag("ec"))
94: boolean(value(ECHOCHECK)) = 1;
95: if (rgetflag("be"))
96: boolean(value(BEAUTIFY)) = 1;
97: if (rgetflag("nb"))
98: boolean(value(BEAUTIFY)) = 0;
99: if (rgetflag("sc"))
100: boolean(value(SCRIPT)) = 1;
101: if (rgetflag("tb"))
102: boolean(value(TABEXPAND)) = 1;
103: if (rgetflag("vb"))
104: boolean(value(VERBOSE)) = 1;
105: if (rgetflag("nv"))
106: boolean(value(VERBOSE)) = 0;
107: if (rgetflag("ta"))
108: boolean(value(TAND)) = 1;
109: if (rgetflag("nt"))
110: boolean(value(TAND)) = 0;
111: if (rgetflag("rw"))
112: boolean(value(RAWFTP)) = 1;
113: if (rgetflag("hd"))
114: boolean(value(HALFDUPLEX)) = 1;
115: if (RE == NOSTR)
116: RE = (char *)"tip.record";
117: if (EX == NOSTR)
118: EX = (char *)"\t\n\b\f";
119: if (ES != NOSTR)
120: vstring("es", ES);
121: if (FO != NOSTR)
122: vstring("fo", FO);
123: if (PR != NOSTR)
124: vstring("pr", PR);
125: if (RC != NOSTR)
126: vstring("rc", RC);
127: if ((DL = rgetnum("dl")) < 0)
128: DL = 0;
129: if ((CL = rgetnum("cl")) < 0)
130: CL = 0;
131: if ((ET = rgetnum("et")) < 0)
132: ET = 10;
133: }
134:
135: char *
136: getremote(host)
137: char *host;
138: {
139: register char *cp;
140: static char *next;
141: static int lookedup = 0;
142:
143: if (!lookedup) {
144: if (host == NOSTR && (host = getenv("HOST")) == NOSTR) {
145: fprintf(stderr, "tip: no host specified\n");
146: exit(3);
147: }
148: getremcap(host);
149: next = DV;
150: lookedup++;
151: }
152: /*
153: * We return a new device each time we're called (to allow
154: * a rotary action to be simulated)
155: */
156: if (next == NOSTR)
157: return (NOSTR);
158: if ((cp = index(next, ',')) == NULL) {
159: DV = next;
160: next = NOSTR;
161: } else {
162: *cp++ = '\0';
163: DV = next;
164: next = cp;
165: }
166: return (DV);
167: }
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