Commit | Line | Data |
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0f2d19dd JB |
1 | /* "socket.c" internet socket support for client/server in SCM |
2 | Copyright (C) 1994 Aubrey Jaffer. | |
3 | Thanks to Hallvard.Tretteberg@si.sintef.no | |
4 | who credits NCSA httpd software by Rob McCool 3/21/93. | |
5 | Rewritten by Gary Houston to be a closer interface to the C | |
6 | socket library. | |
7 | */ | |
8 | \f | |
9 | ||
10 | #include <stdio.h> | |
0f2d19dd | 11 | #include "_scm.h" |
95b88819 GH |
12 | |
13 | #ifdef HAVE_STRING_H | |
14 | #include <string.h> | |
15 | #endif | |
16 | ||
0f2d19dd JB |
17 | #include <sys/types.h> |
18 | #include <sys/socket.h> | |
19 | #include <sys/un.h> | |
20 | #include <netinet/in.h> | |
21 | #include <netdb.h> | |
22 | #include <arpa/inet.h> | |
23 | ||
24 | \f | |
25 | ||
26 | #ifndef STDC_HEADERS | |
27 | int close P ((int fd)); | |
28 | #endif /* STDC_HEADERS */ | |
29 | ||
82ddea4e MD |
30 | #ifdef __STDC__ |
31 | extern int inet_aton (const char *, struct in_addr *); | |
32 | #else | |
33 | extern int inet_aton (); | |
34 | #endif | |
35 | ||
02b754d3 | 36 | SCM_PROC (s_sys_inet_aton, "inet-aton", 1, 0, 0, scm_sys_inet_aton); |
0f2d19dd JB |
37 | #ifdef __STDC__ |
38 | SCM | |
39 | scm_sys_inet_aton (SCM address) | |
40 | #else | |
41 | SCM | |
42 | scm_sys_inet_aton (address) | |
43 | SCM address; | |
44 | #endif | |
45 | { | |
46 | struct in_addr soka; | |
2e18892a | 47 | |
0f2d19dd JB |
48 | SCM_ASSERT (SCM_NIMP (address) && SCM_ROSTRINGP (address), address, SCM_ARG1, s_sys_inet_aton); |
49 | if (SCM_SUBSTRP (address)) | |
50 | address = scm_makfromstr (SCM_ROCHARS (address), SCM_ROLENGTH (address), 0); | |
02b754d3 GH |
51 | if (inet_aton (SCM_ROCHARS (address), &soka) == 0) |
52 | SCM_SYSERROR (s_sys_inet_aton); | |
53 | return scm_ulong2num (ntohl (soka.s_addr)); | |
0f2d19dd JB |
54 | } |
55 | ||
56 | ||
57 | SCM_PROC (s_inet_ntoa, "inet-ntoa", 1, 0, 0, scm_inet_ntoa); | |
58 | #ifdef __STDC__ | |
59 | SCM | |
60 | scm_inet_ntoa (SCM inetid) | |
61 | #else | |
62 | SCM | |
63 | scm_inet_ntoa (inetid) | |
64 | SCM inetid; | |
65 | #endif | |
66 | { | |
67 | struct in_addr addr; | |
68 | char *s; | |
69 | SCM answer; | |
70 | addr.s_addr = htonl (scm_num2ulong (inetid, (char *) SCM_ARG1, s_inet_ntoa)); | |
71 | SCM_DEFER_INTS; | |
72 | s = inet_ntoa (addr); | |
73 | answer = scm_makfromstr (s, strlen (s), 0); | |
74 | SCM_ALLOW_INTS; | |
75 | return answer; | |
76 | } | |
77 | ||
78 | SCM_PROC (s_inet_netof, "inet-netof", 1, 0, 0, scm_inet_netof); | |
79 | #ifdef __STDC__ | |
80 | SCM | |
81 | scm_inet_netof (SCM address) | |
82 | #else | |
83 | SCM | |
84 | scm_inet_netof (address) | |
85 | SCM address; | |
86 | #endif | |
87 | { | |
88 | struct in_addr addr; | |
89 | addr.s_addr = htonl (scm_num2ulong (address, (char *) SCM_ARG1, s_inet_netof)); | |
90 | return scm_ulong2num ((unsigned long) inet_netof (addr)); | |
91 | } | |
92 | ||
93 | SCM_PROC (s_lnaof, "lnaof", 1, 0, 0, scm_lnaof); | |
94 | #ifdef __STDC__ | |
95 | SCM | |
96 | scm_lnaof (SCM address) | |
97 | #else | |
98 | SCM | |
99 | scm_lnaof (address) | |
100 | SCM address; | |
101 | #endif | |
102 | { | |
103 | struct in_addr addr; | |
104 | addr.s_addr = htonl (scm_num2ulong (address, (char *) SCM_ARG1, s_lnaof)); | |
105 | return scm_ulong2num ((unsigned long) inet_lnaof (addr)); | |
106 | } | |
107 | ||
108 | ||
109 | SCM_PROC (s_inet_makeaddr, "inet-makeaddr", 2, 0, 0, scm_inet_makeaddr); | |
110 | #ifdef __STDC__ | |
111 | SCM | |
112 | scm_inet_makeaddr (SCM net, SCM lna) | |
113 | #else | |
114 | SCM | |
115 | scm_inet_makeaddr (net, lna) | |
116 | SCM net; | |
117 | SCM lna; | |
118 | #endif | |
119 | { | |
120 | struct in_addr addr; | |
121 | unsigned long netnum; | |
122 | unsigned long lnanum; | |
123 | ||
124 | netnum = scm_num2ulong (net, (char *) SCM_ARG1, s_inet_makeaddr); | |
125 | lnanum = scm_num2ulong (lna, (char *) SCM_ARG2, s_inet_makeaddr); | |
126 | addr = inet_makeaddr (netnum, lnanum); | |
127 | return scm_ulong2num (ntohl (addr.s_addr)); | |
128 | } | |
129 | ||
130 | ||
131 | /* !!! Doesn't take address format. | |
132 | * Assumes hostent stream isn't reused. | |
133 | */ | |
134 | ||
02b754d3 | 135 | SCM_PROC (s_sys_gethost, "gethost", 0, 1, 0, scm_sys_gethost); |
0f2d19dd JB |
136 | #ifdef __STDC__ |
137 | SCM | |
138 | scm_sys_gethost (SCM name) | |
139 | #else | |
140 | SCM | |
141 | scm_sys_gethost (name) | |
142 | SCM name; | |
143 | #endif | |
144 | { | |
145 | SCM ans = scm_make_vector (SCM_MAKINUM (5), SCM_UNSPECIFIED, SCM_BOOL_F); | |
146 | SCM *ve = SCM_VELTS (ans); | |
147 | SCM lst = SCM_EOL; | |
148 | struct hostent *entry; | |
149 | struct in_addr inad; | |
150 | char **argv; | |
151 | int i = 0; | |
152 | #ifdef HAVE_GETHOSTENT | |
153 | if (SCM_UNBNDP (name)) | |
154 | { | |
155 | SCM_DEFER_INTS; | |
156 | entry = gethostent (); | |
157 | } | |
158 | else | |
159 | #endif | |
160 | if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
161 | { | |
162 | SCM_DEFER_INTS; | |
163 | entry = gethostbyname (SCM_CHARS (name)); | |
164 | } | |
165 | else | |
166 | { | |
167 | inad.s_addr = htonl (scm_num2ulong (name, (char *) SCM_ARG1, s_sys_gethost)); | |
168 | SCM_DEFER_INTS; | |
169 | entry = gethostbyaddr ((char *) &inad, sizeof (inad), AF_INET); | |
170 | } | |
171 | SCM_ALLOW_INTS; | |
172 | if (!entry) | |
02b754d3 | 173 | SCM_SYSERROR (s_sys_gethost); |
0f2d19dd JB |
174 | ve[0] = scm_makfromstr (entry->h_name, (scm_sizet) strlen (entry->h_name), 0); |
175 | ve[1] = scm_makfromstrs (-1, entry->h_aliases); | |
176 | ve[2] = SCM_MAKINUM (entry->h_addrtype + 0L); | |
177 | ve[3] = SCM_MAKINUM (entry->h_length + 0L); | |
178 | if (sizeof (struct in_addr) != entry->h_length) | |
179 | { | |
180 | ve[4] = SCM_BOOL_F; | |
181 | return ans; | |
182 | } | |
183 | for (argv = entry->h_addr_list; argv[i]; i++); | |
184 | while (i--) | |
185 | { | |
186 | inad = *(struct in_addr *) argv[i]; | |
187 | lst = scm_cons (scm_ulong2num (ntohl (inad.s_addr)), lst); | |
188 | } | |
189 | ve[4] = lst; | |
190 | return ans; | |
191 | } | |
192 | ||
193 | ||
02b754d3 | 194 | SCM_PROC (s_sys_getnet, "getnet", 0, 1, 0, scm_sys_getnet); |
0f2d19dd JB |
195 | #ifdef __STDC__ |
196 | SCM | |
197 | scm_sys_getnet (SCM name) | |
198 | #else | |
199 | SCM | |
200 | scm_sys_getnet (name) | |
201 | SCM name; | |
202 | #endif | |
203 | { | |
204 | SCM ans; | |
205 | SCM *ve; | |
206 | struct netent *entry; | |
207 | ||
208 | ans = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F); | |
209 | ve = SCM_VELTS (ans); | |
210 | if (SCM_UNBNDP (name)) | |
211 | { | |
212 | SCM_DEFER_INTS; | |
213 | entry = getnetent (); | |
214 | } | |
215 | else if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
216 | { | |
217 | SCM_DEFER_INTS; | |
218 | entry = getnetbyname (SCM_CHARS (name)); | |
219 | } | |
220 | else | |
221 | { | |
222 | unsigned long netnum; | |
223 | netnum = scm_num2ulong (name, (char *) SCM_ARG1, s_sys_getnet); | |
224 | SCM_DEFER_INTS; | |
225 | entry = getnetbyaddr (netnum, AF_INET); | |
226 | } | |
227 | SCM_ALLOW_INTS; | |
228 | if (!entry) | |
02b754d3 | 229 | SCM_SYSERROR (s_sys_getnet); |
0f2d19dd JB |
230 | ve[0] = scm_makfromstr (entry->n_name, (scm_sizet) strlen (entry->n_name), 0); |
231 | ve[1] = scm_makfromstrs (-1, entry->n_aliases); | |
232 | ve[2] = SCM_MAKINUM (entry->n_addrtype + 0L); | |
233 | ve[3] = scm_ulong2num (entry->n_net + 0L); | |
234 | return ans; | |
235 | } | |
236 | ||
02b754d3 | 237 | SCM_PROC (s_sys_getproto, "getproto", 0, 1, 0, scm_sys_getproto); |
0f2d19dd JB |
238 | #ifdef __STDC__ |
239 | SCM | |
240 | scm_sys_getproto (SCM name) | |
241 | #else | |
242 | SCM | |
243 | scm_sys_getproto (name) | |
244 | SCM name; | |
245 | #endif | |
246 | { | |
247 | SCM ans; | |
248 | SCM *ve; | |
249 | struct protoent *entry; | |
250 | ||
251 | ans = scm_make_vector (SCM_MAKINUM (3), SCM_UNSPECIFIED, SCM_BOOL_F); | |
252 | ve = SCM_VELTS (ans); | |
253 | if (SCM_UNBNDP (name)) | |
254 | { | |
255 | SCM_DEFER_INTS; | |
256 | entry = getprotoent (); | |
257 | } | |
258 | else if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
259 | { | |
260 | SCM_DEFER_INTS; | |
261 | entry = getprotobyname (SCM_CHARS (name)); | |
262 | } | |
263 | else | |
264 | { | |
265 | unsigned long protonum; | |
266 | protonum = scm_num2ulong (name, (char *) SCM_ARG1, s_sys_getproto); | |
267 | SCM_DEFER_INTS; | |
268 | entry = getprotobynumber (protonum); | |
269 | } | |
270 | SCM_ALLOW_INTS; | |
271 | if (!entry) | |
02b754d3 | 272 | SCM_SYSERROR (s_sys_getproto); |
0f2d19dd JB |
273 | ve[0] = scm_makfromstr (entry->p_name, (scm_sizet) strlen (entry->p_name), 0); |
274 | ve[1] = scm_makfromstrs (-1, entry->p_aliases); | |
275 | ve[2] = SCM_MAKINUM (entry->p_proto + 0L); | |
276 | return ans; | |
277 | } | |
278 | ||
279 | #ifdef __STDC__ | |
280 | static SCM | |
281 | scm_return_entry (struct servent *entry) | |
282 | #else | |
283 | static SCM | |
284 | scm_return_entry (entry) | |
285 | struct servent *entry; | |
286 | #endif | |
287 | { | |
288 | SCM ans; | |
289 | SCM *ve; | |
290 | ||
291 | ans = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F); | |
292 | ve = SCM_VELTS (ans); | |
0f2d19dd JB |
293 | ve[0] = scm_makfromstr (entry->s_name, (scm_sizet) strlen (entry->s_name), 0); |
294 | ve[1] = scm_makfromstrs (-1, entry->s_aliases); | |
295 | ve[2] = SCM_MAKINUM (ntohs (entry->s_port) + 0L); | |
296 | ve[3] = scm_makfromstr (entry->s_proto, (scm_sizet) strlen (entry->s_proto), 0); | |
297 | SCM_ALLOW_INTS; | |
298 | return ans; | |
299 | } | |
300 | ||
02b754d3 | 301 | SCM_PROC (s_sys_getserv, "getserv", 0, 2, 0, scm_sys_getserv); |
0f2d19dd JB |
302 | #ifdef __STDC__ |
303 | SCM | |
304 | scm_sys_getserv (SCM name, SCM proto) | |
305 | #else | |
306 | SCM | |
307 | scm_sys_getserv (name, proto) | |
308 | SCM name; | |
309 | SCM proto; | |
310 | #endif | |
311 | { | |
312 | struct servent *entry; | |
313 | if (SCM_UNBNDP (name)) | |
314 | { | |
315 | SCM_DEFER_INTS; | |
316 | entry = getservent (); | |
02b754d3 GH |
317 | if (!entry) |
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 GH |
333 | if (!entry) |
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); | |
339 | #ifdef __STDC__ | |
340 | SCM | |
341 | scm_sethost (SCM arg) | |
342 | #else | |
343 | SCM | |
344 | scm_sethost (arg) | |
345 | SCM arg; | |
346 | #endif | |
347 | { | |
348 | if (SCM_UNBNDP (arg)) | |
349 | endhostent (); | |
350 | else | |
351 | sethostent (SCM_NFALSEP (arg)); | |
352 | return SCM_UNSPECIFIED; | |
353 | } | |
354 | ||
355 | SCM_PROC (s_setnet, "setnet", 0, 1, 0, scm_setnet); | |
356 | #ifdef __STDC__ | |
357 | SCM | |
358 | scm_setnet (SCM arg) | |
359 | #else | |
360 | SCM | |
361 | scm_setnet (arg) | |
362 | SCM arg; | |
363 | #endif | |
364 | { | |
365 | if (SCM_UNBNDP (arg)) | |
366 | endnetent (); | |
367 | else | |
368 | setnetent (SCM_NFALSEP (arg)); | |
369 | return SCM_UNSPECIFIED; | |
370 | } | |
371 | ||
372 | SCM_PROC (s_setproto, "setproto", 0, 1, 0, scm_setproto); | |
373 | #ifdef __STDC__ | |
374 | SCM | |
375 | scm_setproto (SCM arg) | |
376 | #else | |
377 | SCM | |
378 | scm_setproto (arg) | |
379 | SCM arg; | |
380 | #endif | |
381 | { | |
382 | if (SCM_UNBNDP (arg)) | |
383 | endprotoent (); | |
384 | else | |
385 | setprotoent (SCM_NFALSEP (arg)); | |
386 | return SCM_UNSPECIFIED; | |
387 | } | |
388 | ||
389 | SCM_PROC (s_setserv, "setserv", 0, 1, 0, scm_setserv); | |
390 | #ifdef __STDC__ | |
391 | SCM | |
392 | scm_setserv (SCM arg) | |
393 | #else | |
394 | SCM | |
395 | scm_setserv (arg) | |
396 | SCM arg; | |
397 | #endif | |
398 | { | |
399 | if (SCM_UNBNDP (arg)) | |
400 | endservent (); | |
401 | else | |
402 | setservent (SCM_NFALSEP (arg)); | |
403 | return SCM_UNSPECIFIED; | |
404 | } | |
405 | ||
406 | #ifdef __STDC__ | |
407 | void | |
408 | scm_init_socket (void) | |
409 | #else | |
410 | void | |
411 | scm_init_socket () | |
412 | #endif | |
413 | { | |
414 | scm_add_feature ("socket"); | |
415 | #include "socket.x" | |
416 | } | |
417 | ||
418 |