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0f2d19dd | 1 | /* "socket.c" internet socket support for client/server in SCM |
86667910 JB |
2 | * Copyright (C) 1995,1996 Free Software Foundation, Inc. |
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 | |
16 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. | |
41 | */ | |
42 | ||
43 | /* Written in 1994 by Aubrey Jaffer. | |
44 | * Thanks to Hallvard.Tretteberg@si.sintef.no for inspiration and discussion. | |
45 | * Rewritten by Gary Houston to be a closer interface to the C socket library. | |
46 | */ | |
0f2d19dd JB |
47 | \f |
48 | ||
49 | #include <stdio.h> | |
0f2d19dd | 50 | #include "_scm.h" |
20e6290e JB |
51 | #include "feature.h" |
52 | ||
53 | #include "socket.h" | |
95b88819 GH |
54 | |
55 | #ifdef HAVE_STRING_H | |
56 | #include <string.h> | |
57 | #endif | |
58 | ||
0f2d19dd JB |
59 | #include <sys/types.h> |
60 | #include <sys/socket.h> | |
61 | #include <sys/un.h> | |
62 | #include <netinet/in.h> | |
63 | #include <netdb.h> | |
64 | #include <arpa/inet.h> | |
65 | ||
66 | \f | |
67 | ||
68 | #ifndef STDC_HEADERS | |
4e9d47f6 | 69 | int close (); |
0f2d19dd JB |
70 | #endif /* STDC_HEADERS */ |
71 | ||
82ddea4e | 72 | extern int inet_aton (); |
82ddea4e | 73 | |
02b754d3 | 74 | SCM_PROC (s_sys_inet_aton, "inet-aton", 1, 0, 0, scm_sys_inet_aton); |
1cc91f1b | 75 | |
0f2d19dd JB |
76 | SCM |
77 | scm_sys_inet_aton (address) | |
78 | SCM address; | |
0f2d19dd JB |
79 | { |
80 | struct in_addr soka; | |
2e18892a | 81 | |
0f2d19dd JB |
82 | SCM_ASSERT (SCM_NIMP (address) && SCM_ROSTRINGP (address), address, SCM_ARG1, s_sys_inet_aton); |
83 | if (SCM_SUBSTRP (address)) | |
84 | address = scm_makfromstr (SCM_ROCHARS (address), SCM_ROLENGTH (address), 0); | |
02b754d3 | 85 | if (inet_aton (SCM_ROCHARS (address), &soka) == 0) |
52859adf | 86 | scm_syserror (s_sys_inet_aton); |
02b754d3 | 87 | return scm_ulong2num (ntohl (soka.s_addr)); |
0f2d19dd JB |
88 | } |
89 | ||
90 | ||
91 | SCM_PROC (s_inet_ntoa, "inet-ntoa", 1, 0, 0, scm_inet_ntoa); | |
1cc91f1b | 92 | |
0f2d19dd JB |
93 | SCM |
94 | scm_inet_ntoa (inetid) | |
95 | SCM inetid; | |
0f2d19dd JB |
96 | { |
97 | struct in_addr addr; | |
98 | char *s; | |
99 | SCM answer; | |
100 | addr.s_addr = htonl (scm_num2ulong (inetid, (char *) SCM_ARG1, s_inet_ntoa)); | |
101 | SCM_DEFER_INTS; | |
102 | s = inet_ntoa (addr); | |
103 | answer = scm_makfromstr (s, strlen (s), 0); | |
104 | SCM_ALLOW_INTS; | |
105 | return answer; | |
106 | } | |
107 | ||
108 | SCM_PROC (s_inet_netof, "inet-netof", 1, 0, 0, scm_inet_netof); | |
1cc91f1b | 109 | |
0f2d19dd JB |
110 | SCM |
111 | scm_inet_netof (address) | |
112 | SCM address; | |
0f2d19dd JB |
113 | { |
114 | struct in_addr addr; | |
115 | addr.s_addr = htonl (scm_num2ulong (address, (char *) SCM_ARG1, s_inet_netof)); | |
116 | return scm_ulong2num ((unsigned long) inet_netof (addr)); | |
117 | } | |
118 | ||
119 | SCM_PROC (s_lnaof, "lnaof", 1, 0, 0, scm_lnaof); | |
1cc91f1b | 120 | |
0f2d19dd JB |
121 | SCM |
122 | scm_lnaof (address) | |
123 | SCM address; | |
0f2d19dd JB |
124 | { |
125 | struct in_addr addr; | |
126 | addr.s_addr = htonl (scm_num2ulong (address, (char *) SCM_ARG1, s_lnaof)); | |
127 | return scm_ulong2num ((unsigned long) inet_lnaof (addr)); | |
128 | } | |
129 | ||
130 | ||
131 | SCM_PROC (s_inet_makeaddr, "inet-makeaddr", 2, 0, 0, scm_inet_makeaddr); | |
1cc91f1b | 132 | |
0f2d19dd JB |
133 | SCM |
134 | scm_inet_makeaddr (net, lna) | |
135 | SCM net; | |
136 | SCM lna; | |
0f2d19dd JB |
137 | { |
138 | struct in_addr addr; | |
139 | unsigned long netnum; | |
140 | unsigned long lnanum; | |
141 | ||
142 | netnum = scm_num2ulong (net, (char *) SCM_ARG1, s_inet_makeaddr); | |
143 | lnanum = scm_num2ulong (lna, (char *) SCM_ARG2, s_inet_makeaddr); | |
144 | addr = inet_makeaddr (netnum, lnanum); | |
145 | return scm_ulong2num (ntohl (addr.s_addr)); | |
146 | } | |
147 | ||
148 | ||
149 | /* !!! Doesn't take address format. | |
150 | * Assumes hostent stream isn't reused. | |
151 | */ | |
152 | ||
02b754d3 | 153 | SCM_PROC (s_sys_gethost, "gethost", 0, 1, 0, scm_sys_gethost); |
1cc91f1b | 154 | |
0f2d19dd JB |
155 | SCM |
156 | scm_sys_gethost (name) | |
157 | SCM name; | |
0f2d19dd JB |
158 | { |
159 | SCM ans = scm_make_vector (SCM_MAKINUM (5), SCM_UNSPECIFIED, SCM_BOOL_F); | |
160 | SCM *ve = SCM_VELTS (ans); | |
161 | SCM lst = SCM_EOL; | |
162 | struct hostent *entry; | |
163 | struct in_addr inad; | |
164 | char **argv; | |
165 | int i = 0; | |
166 | #ifdef HAVE_GETHOSTENT | |
167 | if (SCM_UNBNDP (name)) | |
168 | { | |
169 | SCM_DEFER_INTS; | |
170 | entry = gethostent (); | |
171 | } | |
172 | else | |
173 | #endif | |
174 | if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
175 | { | |
176 | SCM_DEFER_INTS; | |
177 | entry = gethostbyname (SCM_CHARS (name)); | |
178 | } | |
179 | else | |
180 | { | |
181 | inad.s_addr = htonl (scm_num2ulong (name, (char *) SCM_ARG1, s_sys_gethost)); | |
182 | SCM_DEFER_INTS; | |
183 | entry = gethostbyaddr ((char *) &inad, sizeof (inad), AF_INET); | |
184 | } | |
185 | SCM_ALLOW_INTS; | |
186 | if (!entry) | |
52859adf | 187 | scm_syserror (s_sys_gethost); |
0f2d19dd JB |
188 | ve[0] = scm_makfromstr (entry->h_name, (scm_sizet) strlen (entry->h_name), 0); |
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 | } | |
206 | ||
207 | ||
02b754d3 | 208 | SCM_PROC (s_sys_getnet, "getnet", 0, 1, 0, scm_sys_getnet); |
1cc91f1b | 209 | |
0f2d19dd JB |
210 | SCM |
211 | scm_sys_getnet (name) | |
212 | SCM name; | |
0f2d19dd JB |
213 | { |
214 | SCM ans; | |
215 | SCM *ve; | |
216 | struct netent *entry; | |
217 | ||
218 | ans = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F); | |
219 | ve = SCM_VELTS (ans); | |
220 | if (SCM_UNBNDP (name)) | |
221 | { | |
222 | SCM_DEFER_INTS; | |
223 | entry = getnetent (); | |
224 | } | |
225 | else if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
226 | { | |
227 | SCM_DEFER_INTS; | |
228 | entry = getnetbyname (SCM_CHARS (name)); | |
229 | } | |
230 | else | |
231 | { | |
232 | unsigned long netnum; | |
233 | netnum = scm_num2ulong (name, (char *) SCM_ARG1, s_sys_getnet); | |
234 | SCM_DEFER_INTS; | |
235 | entry = getnetbyaddr (netnum, AF_INET); | |
236 | } | |
237 | SCM_ALLOW_INTS; | |
238 | if (!entry) | |
52859adf | 239 | scm_syserror (s_sys_getnet); |
0f2d19dd JB |
240 | ve[0] = scm_makfromstr (entry->n_name, (scm_sizet) strlen (entry->n_name), 0); |
241 | ve[1] = scm_makfromstrs (-1, entry->n_aliases); | |
242 | ve[2] = SCM_MAKINUM (entry->n_addrtype + 0L); | |
243 | ve[3] = scm_ulong2num (entry->n_net + 0L); | |
244 | return ans; | |
245 | } | |
246 | ||
02b754d3 | 247 | SCM_PROC (s_sys_getproto, "getproto", 0, 1, 0, scm_sys_getproto); |
1cc91f1b | 248 | |
0f2d19dd JB |
249 | SCM |
250 | scm_sys_getproto (name) | |
251 | SCM name; | |
0f2d19dd JB |
252 | { |
253 | SCM ans; | |
254 | SCM *ve; | |
255 | struct protoent *entry; | |
256 | ||
257 | ans = scm_make_vector (SCM_MAKINUM (3), SCM_UNSPECIFIED, SCM_BOOL_F); | |
258 | ve = SCM_VELTS (ans); | |
259 | if (SCM_UNBNDP (name)) | |
260 | { | |
261 | SCM_DEFER_INTS; | |
262 | entry = getprotoent (); | |
263 | } | |
264 | else if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
265 | { | |
266 | SCM_DEFER_INTS; | |
267 | entry = getprotobyname (SCM_CHARS (name)); | |
268 | } | |
269 | else | |
270 | { | |
271 | unsigned long protonum; | |
272 | protonum = scm_num2ulong (name, (char *) SCM_ARG1, s_sys_getproto); | |
273 | SCM_DEFER_INTS; | |
274 | entry = getprotobynumber (protonum); | |
275 | } | |
276 | SCM_ALLOW_INTS; | |
277 | if (!entry) | |
52859adf | 278 | scm_syserror (s_sys_getproto); |
0f2d19dd JB |
279 | ve[0] = scm_makfromstr (entry->p_name, (scm_sizet) strlen (entry->p_name), 0); |
280 | ve[1] = scm_makfromstrs (-1, entry->p_aliases); | |
281 | ve[2] = SCM_MAKINUM (entry->p_proto + 0L); | |
282 | return ans; | |
283 | } | |
284 | ||
1cc91f1b JB |
285 | |
286 | static SCM scm_return_entry SCM_P ((struct servent *entry)); | |
287 | ||
0f2d19dd JB |
288 | static SCM |
289 | scm_return_entry (entry) | |
290 | struct servent *entry; | |
0f2d19dd JB |
291 | { |
292 | SCM ans; | |
293 | SCM *ve; | |
294 | ||
295 | ans = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F); | |
296 | ve = SCM_VELTS (ans); | |
0f2d19dd JB |
297 | ve[0] = scm_makfromstr (entry->s_name, (scm_sizet) strlen (entry->s_name), 0); |
298 | ve[1] = scm_makfromstrs (-1, entry->s_aliases); | |
299 | ve[2] = SCM_MAKINUM (ntohs (entry->s_port) + 0L); | |
300 | ve[3] = scm_makfromstr (entry->s_proto, (scm_sizet) strlen (entry->s_proto), 0); | |
301 | SCM_ALLOW_INTS; | |
302 | return ans; | |
303 | } | |
304 | ||
02b754d3 | 305 | SCM_PROC (s_sys_getserv, "getserv", 0, 2, 0, scm_sys_getserv); |
1cc91f1b | 306 | |
0f2d19dd JB |
307 | SCM |
308 | scm_sys_getserv (name, proto) | |
309 | SCM name; | |
310 | SCM proto; | |
0f2d19dd JB |
311 | { |
312 | struct servent *entry; | |
313 | if (SCM_UNBNDP (name)) | |
314 | { | |
315 | SCM_DEFER_INTS; | |
316 | entry = getservent (); | |
02b754d3 | 317 | if (!entry) |
52859adf | 318 | scm_syserror (s_sys_getserv); |
0f2d19dd JB |
319 | return scm_return_entry (entry); |
320 | } | |
321 | SCM_ASSERT (SCM_NIMP (proto) && SCM_STRINGP (proto), proto, SCM_ARG2, s_sys_getserv); | |
322 | if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
323 | { | |
324 | SCM_DEFER_INTS; | |
325 | entry = getservbyname (SCM_CHARS (name), SCM_CHARS (proto)); | |
326 | } | |
327 | else | |
328 | { | |
329 | SCM_ASSERT (SCM_INUMP (name), name, SCM_ARG1, s_sys_getserv); | |
330 | SCM_DEFER_INTS; | |
331 | entry = getservbyport (SCM_INUM (name), SCM_CHARS (proto)); | |
332 | } | |
02b754d3 | 333 | if (!entry) |
52859adf | 334 | scm_syserror (s_sys_getserv); |
0f2d19dd JB |
335 | return scm_return_entry (entry); |
336 | } | |
337 | ||
338 | SCM_PROC (s_sethost, "sethost", 0, 1, 0, scm_sethost); | |
1cc91f1b | 339 | |
0f2d19dd JB |
340 | SCM |
341 | scm_sethost (arg) | |
342 | SCM arg; | |
0f2d19dd JB |
343 | { |
344 | if (SCM_UNBNDP (arg)) | |
345 | endhostent (); | |
346 | else | |
347 | sethostent (SCM_NFALSEP (arg)); | |
348 | return SCM_UNSPECIFIED; | |
349 | } | |
350 | ||
351 | SCM_PROC (s_setnet, "setnet", 0, 1, 0, scm_setnet); | |
1cc91f1b | 352 | |
0f2d19dd JB |
353 | SCM |
354 | scm_setnet (arg) | |
355 | SCM arg; | |
0f2d19dd JB |
356 | { |
357 | if (SCM_UNBNDP (arg)) | |
358 | endnetent (); | |
359 | else | |
360 | setnetent (SCM_NFALSEP (arg)); | |
361 | return SCM_UNSPECIFIED; | |
362 | } | |
363 | ||
364 | SCM_PROC (s_setproto, "setproto", 0, 1, 0, scm_setproto); | |
1cc91f1b | 365 | |
0f2d19dd JB |
366 | SCM |
367 | scm_setproto (arg) | |
368 | SCM arg; | |
0f2d19dd JB |
369 | { |
370 | if (SCM_UNBNDP (arg)) | |
371 | endprotoent (); | |
372 | else | |
373 | setprotoent (SCM_NFALSEP (arg)); | |
374 | return SCM_UNSPECIFIED; | |
375 | } | |
376 | ||
377 | SCM_PROC (s_setserv, "setserv", 0, 1, 0, scm_setserv); | |
1cc91f1b | 378 | |
0f2d19dd JB |
379 | SCM |
380 | scm_setserv (arg) | |
381 | SCM arg; | |
0f2d19dd JB |
382 | { |
383 | if (SCM_UNBNDP (arg)) | |
384 | endservent (); | |
385 | else | |
386 | setservent (SCM_NFALSEP (arg)); | |
387 | return SCM_UNSPECIFIED; | |
388 | } | |
389 | ||
1cc91f1b | 390 | |
0f2d19dd JB |
391 | void |
392 | scm_init_socket () | |
0f2d19dd JB |
393 | { |
394 | scm_add_feature ("socket"); | |
395 | #include "socket.x" | |
396 | } | |
397 | ||
398 |