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1 | /* |
2 | * Copyright (c) 1988 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
b36fc510 KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
897ce52e KB |
16 | */ |
17 | ||
18 | #ifndef lint | |
6d0564c5 | 19 | static char sccsid[] = "@(#)utilities.c 1.10 (Berkeley) %G%"; |
897ce52e KB |
20 | #endif /* not lint */ |
21 | ||
788caa15 GM |
22 | #define TELOPTS |
23 | #include <arpa/telnet.h> | |
115a5494 | 24 | #include <sys/types.h> |
788caa15 GM |
25 | |
26 | #include <ctype.h> | |
27 | ||
2dde2af0 GM |
28 | #include "general.h" |
29 | ||
6d0564c5 GM |
30 | #include "fdset.h" |
31 | ||
115a5494 GM |
32 | #include "ring.h" |
33 | ||
cf9305fa GM |
34 | #include "defines.h" |
35 | ||
788caa15 GM |
36 | #include "externs.h" |
37 | ||
38 | FILE *NetTrace = 0; /* Not in bss, since needs to stay */ | |
39 | ||
40 | /* | |
41 | * upcase() | |
42 | * | |
43 | * Upcase (in place) the argument. | |
44 | */ | |
45 | ||
46 | void | |
47 | upcase(argument) | |
48 | register char *argument; | |
49 | { | |
50 | register int c; | |
51 | ||
52 | while ((c = *argument) != 0) { | |
53 | if (islower(c)) { | |
54 | *argument = toupper(c); | |
55 | } | |
56 | argument++; | |
57 | } | |
58 | } | |
59 | ||
60 | /* | |
61 | * SetSockOpt() | |
62 | * | |
63 | * Compensate for differences in 4.2 and 4.3 systems. | |
64 | */ | |
65 | ||
66 | int | |
67 | SetSockOpt(fd, level, option, yesno) | |
68 | int | |
69 | fd, | |
70 | level, | |
71 | option, | |
72 | yesno; | |
73 | { | |
74 | #ifndef NOT43 | |
75 | return setsockopt(fd, level, option, | |
76 | (char *)&yesno, sizeof yesno); | |
77 | #else /* NOT43 */ | |
78 | if (yesno == 0) { /* Can't do that in 4.2! */ | |
79 | fprintf(stderr, "Error: attempt to turn off an option 0x%x.\n", | |
80 | option); | |
81 | return -1; | |
82 | } | |
83 | return setsockopt(fd, level, option, 0, 0); | |
84 | #endif /* NOT43 */ | |
85 | } | |
86 | \f | |
87 | /* | |
88 | * The following are routines used to print out debugging information. | |
89 | */ | |
90 | ||
91 | ||
92 | void | |
93 | Dump(direction, buffer, length) | |
94 | char direction; | |
95 | char *buffer; | |
96 | int length; | |
97 | { | |
98 | # define BYTES_PER_LINE 32 | |
99 | # define min(x,y) ((x<y)? x:y) | |
100 | char *pThis; | |
101 | int offset; | |
102 | ||
103 | offset = 0; | |
104 | ||
105 | while (length) { | |
106 | /* print one line */ | |
107 | fprintf(NetTrace, "%c 0x%x\t", direction, offset); | |
108 | pThis = buffer; | |
109 | buffer = buffer+min(length, BYTES_PER_LINE); | |
110 | while (pThis < buffer) { | |
111 | fprintf(NetTrace, "%.2x", (*pThis)&0xff); | |
112 | pThis++; | |
113 | } | |
114 | fprintf(NetTrace, "\n"); | |
115 | length -= BYTES_PER_LINE; | |
116 | offset += BYTES_PER_LINE; | |
117 | if (length < 0) { | |
118 | return; | |
119 | } | |
120 | /* find next unique line */ | |
121 | } | |
122 | } | |
123 | ||
124 | ||
125 | /*VARARGS*/ | |
126 | void | |
127 | printoption(direction, fmt, option, what) | |
128 | char *direction, *fmt; | |
129 | int option, what; | |
130 | { | |
131 | if (!showoptions) | |
132 | return; | |
133 | fprintf(NetTrace, "%s ", direction+1); | |
134 | if (fmt == doopt) | |
135 | fmt = "do"; | |
136 | else if (fmt == dont) | |
137 | fmt = "dont"; | |
138 | else if (fmt == will) | |
139 | fmt = "will"; | |
140 | else if (fmt == wont) | |
141 | fmt = "wont"; | |
142 | else | |
143 | fmt = "???"; | |
144 | if (option < (sizeof telopts/sizeof telopts[0])) | |
145 | fprintf(NetTrace, "%s %s", fmt, telopts[option]); | |
146 | else | |
147 | fprintf(NetTrace, "%s %d", fmt, option); | |
148 | if (*direction == '<') { | |
149 | fprintf(NetTrace, "\r\n"); | |
150 | return; | |
151 | } | |
152 | fprintf(NetTrace, " (%s)\r\n", what ? "reply" : "don't reply"); | |
153 | } | |
154 | ||
155 | void | |
156 | printsub(direction, pointer, length) | |
157 | char *direction, /* "<" or ">" */ | |
158 | *pointer; /* where suboption data sits */ | |
159 | int length; /* length of suboption data */ | |
160 | { | |
161 | if (showoptions) { | |
162 | fprintf(NetTrace, "%s suboption ", | |
163 | (direction[0] == '<')? "Received":"Sent"); | |
164 | switch (pointer[0]) { | |
165 | case TELOPT_TTYPE: | |
166 | fprintf(NetTrace, "Terminal type "); | |
167 | switch (pointer[1]) { | |
168 | case TELQUAL_IS: | |
169 | { | |
448f9c06 | 170 | char tmpbuf[SUBBUFSIZE]; |
788caa15 GM |
171 | int minlen = min(length, sizeof tmpbuf); |
172 | ||
173 | memcpy(tmpbuf, pointer+2, minlen); | |
174 | tmpbuf[minlen-1] = 0; | |
175 | fprintf(NetTrace, "is %s.\n", tmpbuf); | |
176 | } | |
177 | break; | |
178 | case TELQUAL_SEND: | |
179 | fprintf(NetTrace, "- request to send.\n"); | |
180 | break; | |
181 | default: | |
182 | fprintf(NetTrace, | |
80a47e22 GM |
183 | "- unknown qualifier %d (0x%x).\n", |
184 | pointer[1], pointer[1]); | |
788caa15 GM |
185 | } |
186 | break; | |
187 | default: | |
188 | fprintf(NetTrace, "Unknown option %d (0x%x)\n", | |
189 | pointer[0], pointer[0]); | |
190 | } | |
191 | } | |
192 | } | |
cf9305fa GM |
193 | |
194 | /* EmptyTerminal - called to make sure that the terminal buffer is empty. | |
195 | * Note that we consider the buffer to run all the | |
196 | * way to the kernel (thus the select). | |
197 | */ | |
198 | ||
199 | void | |
200 | EmptyTerminal() | |
201 | { | |
202 | #if defined(unix) | |
203 | fd_set o; | |
204 | ||
205 | FD_ZERO(&o); | |
206 | #endif /* defined(unix) */ | |
207 | ||
208 | if (TTYBYTES() == 0) { | |
209 | #if defined(unix) | |
210 | FD_SET(tout, &o); | |
211 | (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, | |
212 | (struct timeval *) 0); /* wait for TTLOWAT */ | |
213 | #endif /* defined(unix) */ | |
214 | } else { | |
215 | while (TTYBYTES()) { | |
216 | ttyflush(0); | |
217 | #if defined(unix) | |
218 | FD_SET(tout, &o); | |
219 | (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0, | |
220 | (struct timeval *) 0); /* wait for TTLOWAT */ | |
221 | #endif /* defined(unix) */ | |
222 | } | |
223 | } | |
224 | } | |
225 | ||
226 | void | |
227 | SetForExit() | |
228 | { | |
229 | setconnmode(); | |
230 | #if defined(TN3270) | |
231 | if (In3270) { | |
232 | Finish3270(); | |
233 | } | |
6da40c06 GM |
234 | #else /* defined(TN3270) */ |
235 | do { | |
236 | telrcv(); /* Process any incoming data */ | |
237 | EmptyTerminal(); | |
238 | } while (ring_full_count(&netiring)); /* While there is any */ | |
cf9305fa GM |
239 | #endif /* defined(TN3270) */ |
240 | setcommandmode(); | |
241 | fflush(stdout); | |
242 | fflush(stderr); | |
243 | #if defined(TN3270) | |
244 | if (In3270) { | |
245 | StopScreen(1); | |
246 | } | |
247 | #endif /* defined(TN3270) */ | |
248 | setconnmode(); | |
249 | EmptyTerminal(); /* Flush the path to the tty */ | |
250 | setcommandmode(); | |
251 | } | |
252 | ||
253 | void | |
254 | Exit(returnCode) | |
255 | int returnCode; | |
256 | { | |
257 | SetForExit(); | |
258 | exit(returnCode); | |
259 | } | |
260 | ||
261 | void | |
262 | ExitString(string, returnCode) | |
263 | char *string; | |
264 | int returnCode; | |
265 | { | |
266 | SetForExit(); | |
267 | fwrite(string, 1, strlen(string), stderr); | |
268 | exit(returnCode); | |
269 | } | |
270 | ||
271 | #if defined(MSDOS) | |
272 | void | |
273 | ExitPerror(string, returnCode) | |
274 | char *string; | |
275 | int returnCode; | |
276 | { | |
277 | SetForExit(); | |
278 | perror(string); | |
279 | exit(returnCode); | |
280 | } | |
281 | #endif /* defined(MSDOS) */ |