Commit | Line | Data |
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370312ae | 1 | /* "net_db.c" network database support |
e4b265d8 | 2 | * Copyright (C) 1995,1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc. |
370312ae GH |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2, or (at your option) | |
7 | * any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
16 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
17 | * Boston, MA 02111-1307 USA | |
370312ae GH |
18 | * |
19 | * As a special exception, the Free Software Foundation gives permission | |
20 | * for additional uses of the text contained in its release of GUILE. | |
21 | * | |
22 | * The exception is that, if you link the GUILE library with other files | |
23 | * to produce an executable, this does not by itself cause the | |
24 | * resulting executable to be covered by the GNU General Public License. | |
25 | * Your use of that executable is in no way restricted on account of | |
26 | * linking the GUILE library code into it. | |
27 | * | |
28 | * This exception does not however invalidate any other reasons why | |
29 | * the executable file might be covered by the GNU General Public License. | |
30 | * | |
31 | * This exception applies only to the code released by the | |
32 | * Free Software Foundation under the name GUILE. If you copy | |
33 | * code from other Free Software Foundation releases into a copy of | |
34 | * GUILE, as the General Public License permits, the exception does | |
35 | * not apply to the code that you add in this way. To avoid misleading | |
36 | * anyone as to the status of such modified files, you must delete | |
37 | * this exception notice from them. | |
38 | * | |
39 | * If you write modifications of your own for GUILE, it is your choice | |
40 | * whether to permit this exception to apply to your modifications. | |
82892bed | 41 | * If you do not wish that, delete this exception notice. */ |
370312ae | 42 | |
1bbd0b84 GB |
43 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, |
44 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
45 | ||
46 | ||
370312ae GH |
47 | /* Written in 1994 by Aubrey Jaffer. |
48 | * Thanks to Hallvard.Tretteberg@si.sintef.no for inspiration and discussion. | |
49 | * Rewritten by Gary Houston to be a closer interface to the C socket library. | |
50 | * Split into net_db.c and socket.c. | |
51 | */ | |
52 | \f | |
53 | ||
e6e2e95a MD |
54 | #include <errno.h> |
55 | ||
a0599745 MD |
56 | #include "libguile/_scm.h" |
57 | #include "libguile/feature.h" | |
58 | #include "libguile/strings.h" | |
59 | #include "libguile/vectors.h" | |
370312ae | 60 | |
a0599745 MD |
61 | #include "libguile/validate.h" |
62 | #include "libguile/net_db.h" | |
370312ae GH |
63 | |
64 | #ifdef HAVE_STRING_H | |
65 | #include <string.h> | |
66 | #endif | |
67 | ||
68 | #include <sys/types.h> | |
cae76441 | 69 | #include <sys/socket.h> |
370312ae GH |
70 | #include <netdb.h> |
71 | #include <netinet/in.h> | |
72 | #include <arpa/inet.h> | |
73 | ||
789ecc05 GH |
74 | #ifndef HAVE_H_ERRNO |
75 | /* h_errno not found in netdb.h, maybe this will help. */ | |
76 | extern int h_errno; | |
77 | #endif | |
78 | ||
66c73b76 | 79 | \f |
370312ae | 80 | |
5c11cc9d GH |
81 | SCM_SYMBOL (scm_host_not_found_key, "host-not-found"); |
82 | SCM_SYMBOL (scm_try_again_key, "try-again"); | |
83 | SCM_SYMBOL (scm_no_recovery_key, "no-recovery"); | |
84 | SCM_SYMBOL (scm_no_data_key, "no-data"); | |
370312ae | 85 | |
5c11cc9d GH |
86 | static void scm_resolv_error (const char *subr, SCM bad_value) |
87 | { | |
5a5f3646 | 88 | #ifdef NETDB_INTERNAL |
5c11cc9d GH |
89 | if (h_errno == NETDB_INTERNAL) |
90 | { | |
91 | /* errno supposedly contains a useful value. */ | |
92 | scm_syserror (subr); | |
93 | } | |
94 | else | |
5a5f3646 | 95 | #endif |
5c11cc9d GH |
96 | { |
97 | SCM key; | |
98 | const char *errmsg; | |
99 | ||
100 | switch (h_errno) | |
101 | { | |
102 | case HOST_NOT_FOUND: | |
103 | key = scm_host_not_found_key; | |
104 | errmsg = "Unknown host"; | |
105 | break; | |
106 | case TRY_AGAIN: | |
107 | key = scm_try_again_key; | |
108 | errmsg = "Host name lookup failure"; | |
109 | break; | |
110 | case NO_RECOVERY: | |
111 | key = scm_no_recovery_key; | |
112 | errmsg = "Unknown server error"; | |
113 | break; | |
114 | case NO_DATA: | |
115 | key = scm_no_data_key; | |
116 | errmsg = "No address associated with name"; | |
117 | break; | |
118 | default: | |
119 | scm_misc_error (subr, "Unknown resolver error", SCM_EOL); | |
120 | errmsg = NULL; | |
121 | } | |
122 | ||
123 | #ifdef HAVE_HSTRERROR | |
d9b6c170 | 124 | errmsg = (const char *) hstrerror (h_errno); |
5c11cc9d GH |
125 | #endif |
126 | scm_error (key, subr, errmsg, scm_cons (bad_value, SCM_EOL), SCM_EOL); | |
127 | } | |
128 | } | |
129 | ||
130 | /* Should take an extra arg for address format (will be needed for IPv6). | |
131 | Should use reentrant facilities if available. | |
370312ae GH |
132 | */ |
133 | ||
a1ec6916 | 134 | SCM_DEFINE (scm_gethost, "gethost", 0, 1, 0, |
d46e4713 | 135 | (SCM host), |
b380b885 MD |
136 | "@deffnx procedure gethostbyname hostname\n" |
137 | "@deffnx procedure gethostbyaddr address\n" | |
138 | "Look up a host by name or address, returning a host object. The\n" | |
139 | "@code{gethost} procedure will accept either a string name or an integer\n" | |
140 | "address; if given no arguments, it behaves like @code{gethostent} (see\n" | |
141 | "below). If a name or address is supplied but the address can not be\n" | |
142 | "found, an error will be thrown to one of the keys:\n" | |
143 | "@code{host-not-found}, @code{try-again}, @code{no-recovery} or\n" | |
144 | "@code{no-data}, corresponding to the equivalent @code{h_error} values.\n" | |
145 | "Unusual conditions may result in errors thrown to the\n" | |
146 | "@code{system-error} or @code{misc_error} keys.") | |
1bbd0b84 | 147 | #define FUNC_NAME s_scm_gethost |
370312ae | 148 | { |
00ffa0e7 | 149 | SCM ans = scm_c_make_vector (5, SCM_UNSPECIFIED); |
370312ae GH |
150 | SCM *ve = SCM_VELTS (ans); |
151 | SCM lst = SCM_EOL; | |
152 | struct hostent *entry; | |
153 | struct in_addr inad; | |
154 | char **argv; | |
155 | int i = 0; | |
d46e4713 | 156 | if (SCM_UNBNDP (host)) |
370312ae | 157 | { |
cd34a384 | 158 | #ifdef HAVE_GETHOSTENT |
370312ae | 159 | entry = gethostent (); |
cd34a384 JB |
160 | #else |
161 | entry = NULL; | |
162 | #endif | |
07513939 JB |
163 | if (! entry) |
164 | { | |
165 | /* As far as I can tell, there's no good way to tell whether | |
166 | zero means an error or end-of-file. The trick of | |
167 | clearing errno before calling gethostent and checking it | |
168 | afterwards doesn't cut it, because, on Linux, it seems to | |
169 | try to contact some other server (YP?) and fails, which | |
170 | is a benign failure. */ | |
07513939 JB |
171 | return SCM_BOOL_F; |
172 | } | |
370312ae | 173 | } |
a6d9e5ab | 174 | else if (SCM_STRINGP (host)) |
370312ae | 175 | { |
a6d9e5ab DH |
176 | SCM_STRING_COERCE_0TERMINATION_X (host); |
177 | entry = gethostbyname (SCM_STRING_CHARS (host)); | |
370312ae GH |
178 | } |
179 | else | |
180 | { | |
e4b265d8 | 181 | inad.s_addr = htonl (SCM_NUM2ULONG (1, host)); |
370312ae GH |
182 | entry = gethostbyaddr ((char *) &inad, sizeof (inad), AF_INET); |
183 | } | |
370312ae | 184 | if (!entry) |
d46e4713 | 185 | scm_resolv_error (FUNC_NAME, host); |
5c11cc9d GH |
186 | |
187 | ve[0] = scm_makfromstr (entry->h_name, | |
188 | (scm_sizet) strlen (entry->h_name), 0); | |
370312ae GH |
189 | ve[1] = scm_makfromstrs (-1, entry->h_aliases); |
190 | ve[2] = SCM_MAKINUM (entry->h_addrtype + 0L); | |
191 | ve[3] = SCM_MAKINUM (entry->h_length + 0L); | |
192 | if (sizeof (struct in_addr) != entry->h_length) | |
193 | { | |
194 | ve[4] = SCM_BOOL_F; | |
195 | return ans; | |
196 | } | |
197 | for (argv = entry->h_addr_list; argv[i]; i++); | |
198 | while (i--) | |
199 | { | |
200 | inad = *(struct in_addr *) argv[i]; | |
201 | lst = scm_cons (scm_ulong2num (ntohl (inad.s_addr)), lst); | |
202 | } | |
203 | ve[4] = lst; | |
204 | return ans; | |
205 | } | |
1bbd0b84 | 206 | #undef FUNC_NAME |
370312ae GH |
207 | |
208 | ||
07513939 JB |
209 | /* In all subsequent getMUMBLE functions, when we're called with no |
210 | arguments, we're supposed to traverse the tables entry by entry. | |
211 | However, there doesn't seem to be any documented way to distinguish | |
212 | between end-of-table and an error; in both cases the functions | |
213 | return zero. Gotta love Unix. For the time being, we clear errno, | |
214 | and if we get a zero and errno is set, we signal an error. This | |
215 | doesn't seem quite right (what if errno gets set as part of healthy | |
216 | operation?), but it seems to work okay. We'll see. */ | |
217 | ||
0e958795 | 218 | #if defined(HAVE_GETNETENT) && defined(HAVE_GETNETBYNAME) && defined(HAVE_GETNETBYADDR) |
a1ec6916 | 219 | SCM_DEFINE (scm_getnet, "getnet", 0, 1, 0, |
d46e4713 | 220 | (SCM net), |
b380b885 MD |
221 | "@deffnx procedure getnetbyname net-name\n" |
222 | "@deffnx procedure getnetbyaddr net-number\n" | |
223 | "Look up a network by name or net number in the network database. The\n" | |
224 | "@var{net-name} argument must be a string, and the @var{net-number}\n" | |
225 | "argument must be an integer. @code{getnet} will accept either type of\n" | |
226 | "argument, behaving like @code{getnetent} (see below) if no arguments are\n" | |
227 | "given.") | |
1bbd0b84 | 228 | #define FUNC_NAME s_scm_getnet |
370312ae GH |
229 | { |
230 | SCM ans; | |
231 | SCM *ve; | |
232 | struct netent *entry; | |
233 | ||
00ffa0e7 | 234 | ans = scm_c_make_vector (4, SCM_UNSPECIFIED); |
370312ae | 235 | ve = SCM_VELTS (ans); |
d46e4713 | 236 | if (SCM_UNBNDP (net)) |
370312ae | 237 | { |
370312ae | 238 | entry = getnetent (); |
07513939 JB |
239 | if (! entry) |
240 | { | |
1dd05fd8 MG |
241 | /* There's no good way to tell whether zero means an error |
242 | or end-of-file, so we always return #f. See `gethost' | |
243 | for details. */ | |
244 | return SCM_BOOL_F; | |
07513939 | 245 | } |
370312ae | 246 | } |
a6d9e5ab | 247 | else if (SCM_STRINGP (net)) |
370312ae | 248 | { |
a6d9e5ab DH |
249 | SCM_STRING_COERCE_0TERMINATION_X (net); |
250 | entry = getnetbyname (SCM_STRING_CHARS (net)); | |
370312ae GH |
251 | } |
252 | else | |
253 | { | |
254 | unsigned long netnum; | |
d46e4713 | 255 | netnum = SCM_NUM2ULONG (1, net); |
370312ae GH |
256 | entry = getnetbyaddr (netnum, AF_INET); |
257 | } | |
370312ae | 258 | if (!entry) |
e0c08f17 | 259 | SCM_SYSERROR_MSG ("no such network ~A", SCM_LIST1 (net), errno); |
370312ae GH |
260 | ve[0] = scm_makfromstr (entry->n_name, (scm_sizet) strlen (entry->n_name), 0); |
261 | ve[1] = scm_makfromstrs (-1, entry->n_aliases); | |
262 | ve[2] = SCM_MAKINUM (entry->n_addrtype + 0L); | |
263 | ve[3] = scm_ulong2num (entry->n_net + 0L); | |
264 | return ans; | |
265 | } | |
1bbd0b84 | 266 | #undef FUNC_NAME |
0e958795 | 267 | #endif |
370312ae | 268 | |
0e958795 | 269 | #ifdef HAVE_GETPROTOENT |
a1ec6916 | 270 | SCM_DEFINE (scm_getproto, "getproto", 0, 1, 0, |
d46e4713 | 271 | (SCM protocol), |
b380b885 MD |
272 | "@deffnx procedure getprotobyname name\n" |
273 | "@deffnx procedure getprotobynumber number\n" | |
274 | "Look up a network protocol by name or by number. @code{getprotobyname}\n" | |
275 | "takes a string argument, and @code{getprotobynumber} takes an integer\n" | |
276 | "argument. @code{getproto} will accept either type, behaving like\n" | |
277 | "@code{getprotoent} (see below) if no arguments are supplied.") | |
1bbd0b84 | 278 | #define FUNC_NAME s_scm_getproto |
370312ae GH |
279 | { |
280 | SCM ans; | |
281 | SCM *ve; | |
282 | struct protoent *entry; | |
283 | ||
00ffa0e7 | 284 | ans = scm_c_make_vector (3, SCM_UNSPECIFIED); |
370312ae | 285 | ve = SCM_VELTS (ans); |
d46e4713 | 286 | if (SCM_UNBNDP (protocol)) |
370312ae | 287 | { |
370312ae | 288 | entry = getprotoent (); |
07513939 JB |
289 | if (! entry) |
290 | { | |
1dd05fd8 MG |
291 | /* There's no good way to tell whether zero means an error |
292 | or end-of-file, so we always return #f. See `gethost' | |
293 | for details. */ | |
294 | return SCM_BOOL_F; | |
07513939 | 295 | } |
370312ae | 296 | } |
a6d9e5ab | 297 | else if (SCM_STRINGP (protocol)) |
370312ae | 298 | { |
a6d9e5ab DH |
299 | SCM_STRING_COERCE_0TERMINATION_X (protocol); |
300 | entry = getprotobyname (SCM_STRING_CHARS (protocol)); | |
370312ae GH |
301 | } |
302 | else | |
303 | { | |
304 | unsigned long protonum; | |
e4b265d8 | 305 | protonum = SCM_NUM2ULONG (1, protocol); |
370312ae GH |
306 | entry = getprotobynumber (protonum); |
307 | } | |
370312ae | 308 | if (!entry) |
e0c08f17 | 309 | SCM_SYSERROR_MSG ("no such protocol ~A", SCM_LIST1 (protocol), errno); |
370312ae GH |
310 | ve[0] = scm_makfromstr (entry->p_name, (scm_sizet) strlen (entry->p_name), 0); |
311 | ve[1] = scm_makfromstrs (-1, entry->p_aliases); | |
312 | ve[2] = SCM_MAKINUM (entry->p_proto + 0L); | |
313 | return ans; | |
314 | } | |
1bbd0b84 | 315 | #undef FUNC_NAME |
0e958795 | 316 | #endif |
370312ae | 317 | |
370312ae | 318 | static SCM |
1bbd0b84 | 319 | scm_return_entry (struct servent *entry) |
370312ae GH |
320 | { |
321 | SCM ans; | |
322 | SCM *ve; | |
323 | ||
00ffa0e7 | 324 | ans = scm_c_make_vector (4, SCM_UNSPECIFIED); |
370312ae GH |
325 | ve = SCM_VELTS (ans); |
326 | ve[0] = scm_makfromstr (entry->s_name, (scm_sizet) strlen (entry->s_name), 0); | |
327 | ve[1] = scm_makfromstrs (-1, entry->s_aliases); | |
328 | ve[2] = SCM_MAKINUM (ntohs (entry->s_port) + 0L); | |
329 | ve[3] = scm_makfromstr (entry->s_proto, (scm_sizet) strlen (entry->s_proto), 0); | |
370312ae GH |
330 | return ans; |
331 | } | |
332 | ||
0e958795 | 333 | #ifdef HAVE_GETSERVENT |
a1ec6916 | 334 | SCM_DEFINE (scm_getserv, "getserv", 0, 2, 0, |
d46e4713 | 335 | (SCM name, SCM protocol), |
b380b885 MD |
336 | "@deffnx procedure getservbyname name protocol\n" |
337 | "@deffnx procedure getservbyport port protocol\n" | |
338 | "Look up a network service by name or by service number, and return a\n" | |
339 | "network service object. The @var{protocol} argument specifies the name\n" | |
340 | "of the desired protocol; if the protocol found in the network service\n" | |
341 | "database does not match this name, a system error is signalled.\n\n" | |
342 | "The @code{getserv} procedure will take either a service name or number\n" | |
343 | "as its first argument; if given no arguments, it behaves like\n" | |
344 | "@code{getservent} (see below).") | |
1bbd0b84 | 345 | #define FUNC_NAME s_scm_getserv |
370312ae GH |
346 | { |
347 | struct servent *entry; | |
348 | if (SCM_UNBNDP (name)) | |
349 | { | |
370312ae | 350 | entry = getservent (); |
07513939 JB |
351 | if (!entry) |
352 | { | |
1dd05fd8 MG |
353 | /* There's no good way to tell whether zero means an error |
354 | or end-of-file, so we always return #f. See `gethost' | |
355 | for details. */ | |
356 | return SCM_BOOL_F; | |
07513939 | 357 | } |
370312ae GH |
358 | return scm_return_entry (entry); |
359 | } | |
a6d9e5ab DH |
360 | SCM_VALIDATE_STRING (2, protocol); |
361 | SCM_STRING_COERCE_0TERMINATION_X (protocol); | |
362 | if (SCM_STRINGP (name)) | |
370312ae | 363 | { |
a6d9e5ab DH |
364 | SCM_STRING_COERCE_0TERMINATION_X (name); |
365 | entry = getservbyname (SCM_STRING_CHARS (name), SCM_STRING_CHARS (protocol)); | |
370312ae GH |
366 | } |
367 | else | |
368 | { | |
3b3b36dd | 369 | SCM_VALIDATE_INUM (1,name); |
a6d9e5ab | 370 | entry = getservbyport (htons (SCM_INUM (name)), SCM_STRING_CHARS (protocol)); |
370312ae GH |
371 | } |
372 | if (!entry) | |
e0c08f17 | 373 | SCM_SYSERROR_MSG("no such service ~A", SCM_LIST1 (name), errno); |
370312ae GH |
374 | return scm_return_entry (entry); |
375 | } | |
1bbd0b84 | 376 | #undef FUNC_NAME |
0e958795 | 377 | #endif |
370312ae | 378 | |
0e958795 | 379 | #if defined(HAVE_SETHOSTENT) && defined(HAVE_ENDHOSTENT) |
a1ec6916 | 380 | SCM_DEFINE (scm_sethost, "sethost", 0, 1, 0, |
d46e4713 | 381 | (SCM stayopen), |
b380b885 MD |
382 | "If @var{stayopen} is omitted, this is equivalent to @code{endhostent}.\n" |
383 | "Otherwise it is equivalent to @code{sethostent stayopen}.") | |
1bbd0b84 | 384 | #define FUNC_NAME s_scm_sethost |
370312ae | 385 | { |
d46e4713 | 386 | if (SCM_UNBNDP (stayopen)) |
370312ae GH |
387 | endhostent (); |
388 | else | |
d46e4713 | 389 | sethostent (SCM_NFALSEP (stayopen)); |
370312ae GH |
390 | return SCM_UNSPECIFIED; |
391 | } | |
1bbd0b84 | 392 | #undef FUNC_NAME |
0e958795 | 393 | #endif |
370312ae | 394 | |
0e958795 | 395 | #if defined(HAVE_SETNETENT) && defined(HAVE_ENDNETENT) |
a1ec6916 | 396 | SCM_DEFINE (scm_setnet, "setnet", 0, 1, 0, |
d46e4713 | 397 | (SCM stayopen), |
b380b885 MD |
398 | "If @var{stayopen} is omitted, this is equivalent to @code{endnetent}.\n" |
399 | "Otherwise it is equivalent to @code{setnetent stayopen}.") | |
1bbd0b84 | 400 | #define FUNC_NAME s_scm_setnet |
370312ae | 401 | { |
d46e4713 | 402 | if (SCM_UNBNDP (stayopen)) |
370312ae GH |
403 | endnetent (); |
404 | else | |
d46e4713 | 405 | setnetent (SCM_NFALSEP (stayopen)); |
370312ae GH |
406 | return SCM_UNSPECIFIED; |
407 | } | |
1bbd0b84 | 408 | #undef FUNC_NAME |
0e958795 | 409 | #endif |
370312ae | 410 | |
0e958795 | 411 | #if defined(HAVE_SETPROTOENT) && defined(HAVE_ENDPROTOENT) |
a1ec6916 | 412 | SCM_DEFINE (scm_setproto, "setproto", 0, 1, 0, |
d46e4713 | 413 | (SCM stayopen), |
b380b885 MD |
414 | "If @var{stayopen} is omitted, this is equivalent to @code{endprotoent}.\n" |
415 | "Otherwise it is equivalent to @code{setprotoent stayopen}.") | |
1bbd0b84 | 416 | #define FUNC_NAME s_scm_setproto |
370312ae | 417 | { |
d46e4713 | 418 | if (SCM_UNBNDP (stayopen)) |
370312ae GH |
419 | endprotoent (); |
420 | else | |
d46e4713 | 421 | setprotoent (SCM_NFALSEP (stayopen)); |
370312ae GH |
422 | return SCM_UNSPECIFIED; |
423 | } | |
1bbd0b84 | 424 | #undef FUNC_NAME |
0e958795 | 425 | #endif |
370312ae | 426 | |
0e958795 | 427 | #if defined(HAVE_SETSERVENT) && defined(HAVE_ENDSERVENT) |
a1ec6916 | 428 | SCM_DEFINE (scm_setserv, "setserv", 0, 1, 0, |
d46e4713 | 429 | (SCM stayopen), |
b380b885 MD |
430 | "If @var{stayopen} is omitted, this is equivalent to @code{endservent}.\n" |
431 | "Otherwise it is equivalent to @code{setservent stayopen}.") | |
1bbd0b84 | 432 | #define FUNC_NAME s_scm_setserv |
370312ae | 433 | { |
d46e4713 | 434 | if (SCM_UNBNDP (stayopen)) |
370312ae GH |
435 | endservent (); |
436 | else | |
d46e4713 | 437 | setservent (SCM_NFALSEP (stayopen)); |
370312ae GH |
438 | return SCM_UNSPECIFIED; |
439 | } | |
1bbd0b84 | 440 | #undef FUNC_NAME |
0e958795 | 441 | #endif |
370312ae GH |
442 | |
443 | ||
444 | void | |
445 | scm_init_net_db () | |
446 | { | |
370312ae | 447 | scm_add_feature ("net-db"); |
8dc9439f | 448 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 449 | #include "libguile/net_db.x" |
8dc9439f | 450 | #endif |
370312ae | 451 | } |
89e00824 ML |
452 | |
453 | /* | |
454 | Local Variables: | |
455 | c-file-style: "gnu" | |
456 | End: | |
457 | */ |