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 | ||
02b754d3 | 30 | SCM_PROC (s_sys_inet_aton, "inet-aton", 1, 0, 0, scm_sys_inet_aton); |
0f2d19dd JB |
31 | #ifdef __STDC__ |
32 | SCM | |
33 | scm_sys_inet_aton (SCM address) | |
34 | #else | |
35 | SCM | |
36 | scm_sys_inet_aton (address) | |
37 | SCM address; | |
38 | #endif | |
39 | { | |
40 | struct in_addr soka; | |
2e18892a | 41 | |
0f2d19dd JB |
42 | SCM_ASSERT (SCM_NIMP (address) && SCM_ROSTRINGP (address), address, SCM_ARG1, s_sys_inet_aton); |
43 | if (SCM_SUBSTRP (address)) | |
44 | address = scm_makfromstr (SCM_ROCHARS (address), SCM_ROLENGTH (address), 0); | |
02b754d3 GH |
45 | if (inet_aton (SCM_ROCHARS (address), &soka) == 0) |
46 | SCM_SYSERROR (s_sys_inet_aton); | |
47 | return scm_ulong2num (ntohl (soka.s_addr)); | |
0f2d19dd JB |
48 | } |
49 | ||
50 | ||
51 | SCM_PROC (s_inet_ntoa, "inet-ntoa", 1, 0, 0, scm_inet_ntoa); | |
52 | #ifdef __STDC__ | |
53 | SCM | |
54 | scm_inet_ntoa (SCM inetid) | |
55 | #else | |
56 | SCM | |
57 | scm_inet_ntoa (inetid) | |
58 | SCM inetid; | |
59 | #endif | |
60 | { | |
61 | struct in_addr addr; | |
62 | char *s; | |
63 | SCM answer; | |
64 | addr.s_addr = htonl (scm_num2ulong (inetid, (char *) SCM_ARG1, s_inet_ntoa)); | |
65 | SCM_DEFER_INTS; | |
66 | s = inet_ntoa (addr); | |
67 | answer = scm_makfromstr (s, strlen (s), 0); | |
68 | SCM_ALLOW_INTS; | |
69 | return answer; | |
70 | } | |
71 | ||
72 | SCM_PROC (s_inet_netof, "inet-netof", 1, 0, 0, scm_inet_netof); | |
73 | #ifdef __STDC__ | |
74 | SCM | |
75 | scm_inet_netof (SCM address) | |
76 | #else | |
77 | SCM | |
78 | scm_inet_netof (address) | |
79 | SCM address; | |
80 | #endif | |
81 | { | |
82 | struct in_addr addr; | |
83 | addr.s_addr = htonl (scm_num2ulong (address, (char *) SCM_ARG1, s_inet_netof)); | |
84 | return scm_ulong2num ((unsigned long) inet_netof (addr)); | |
85 | } | |
86 | ||
87 | SCM_PROC (s_lnaof, "lnaof", 1, 0, 0, scm_lnaof); | |
88 | #ifdef __STDC__ | |
89 | SCM | |
90 | scm_lnaof (SCM address) | |
91 | #else | |
92 | SCM | |
93 | scm_lnaof (address) | |
94 | SCM address; | |
95 | #endif | |
96 | { | |
97 | struct in_addr addr; | |
98 | addr.s_addr = htonl (scm_num2ulong (address, (char *) SCM_ARG1, s_lnaof)); | |
99 | return scm_ulong2num ((unsigned long) inet_lnaof (addr)); | |
100 | } | |
101 | ||
102 | ||
103 | SCM_PROC (s_inet_makeaddr, "inet-makeaddr", 2, 0, 0, scm_inet_makeaddr); | |
104 | #ifdef __STDC__ | |
105 | SCM | |
106 | scm_inet_makeaddr (SCM net, SCM lna) | |
107 | #else | |
108 | SCM | |
109 | scm_inet_makeaddr (net, lna) | |
110 | SCM net; | |
111 | SCM lna; | |
112 | #endif | |
113 | { | |
114 | struct in_addr addr; | |
115 | unsigned long netnum; | |
116 | unsigned long lnanum; | |
117 | ||
118 | netnum = scm_num2ulong (net, (char *) SCM_ARG1, s_inet_makeaddr); | |
119 | lnanum = scm_num2ulong (lna, (char *) SCM_ARG2, s_inet_makeaddr); | |
120 | addr = inet_makeaddr (netnum, lnanum); | |
121 | return scm_ulong2num (ntohl (addr.s_addr)); | |
122 | } | |
123 | ||
124 | ||
125 | /* !!! Doesn't take address format. | |
126 | * Assumes hostent stream isn't reused. | |
127 | */ | |
128 | ||
02b754d3 | 129 | SCM_PROC (s_sys_gethost, "gethost", 0, 1, 0, scm_sys_gethost); |
0f2d19dd JB |
130 | #ifdef __STDC__ |
131 | SCM | |
132 | scm_sys_gethost (SCM name) | |
133 | #else | |
134 | SCM | |
135 | scm_sys_gethost (name) | |
136 | SCM name; | |
137 | #endif | |
138 | { | |
139 | SCM ans = scm_make_vector (SCM_MAKINUM (5), SCM_UNSPECIFIED, SCM_BOOL_F); | |
140 | SCM *ve = SCM_VELTS (ans); | |
141 | SCM lst = SCM_EOL; | |
142 | struct hostent *entry; | |
143 | struct in_addr inad; | |
144 | char **argv; | |
145 | int i = 0; | |
146 | #ifdef HAVE_GETHOSTENT | |
147 | if (SCM_UNBNDP (name)) | |
148 | { | |
149 | SCM_DEFER_INTS; | |
150 | entry = gethostent (); | |
151 | } | |
152 | else | |
153 | #endif | |
154 | if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
155 | { | |
156 | SCM_DEFER_INTS; | |
157 | entry = gethostbyname (SCM_CHARS (name)); | |
158 | } | |
159 | else | |
160 | { | |
161 | inad.s_addr = htonl (scm_num2ulong (name, (char *) SCM_ARG1, s_sys_gethost)); | |
162 | SCM_DEFER_INTS; | |
163 | entry = gethostbyaddr ((char *) &inad, sizeof (inad), AF_INET); | |
164 | } | |
165 | SCM_ALLOW_INTS; | |
166 | if (!entry) | |
02b754d3 | 167 | SCM_SYSERROR (s_sys_gethost); |
0f2d19dd JB |
168 | ve[0] = scm_makfromstr (entry->h_name, (scm_sizet) strlen (entry->h_name), 0); |
169 | ve[1] = scm_makfromstrs (-1, entry->h_aliases); | |
170 | ve[2] = SCM_MAKINUM (entry->h_addrtype + 0L); | |
171 | ve[3] = SCM_MAKINUM (entry->h_length + 0L); | |
172 | if (sizeof (struct in_addr) != entry->h_length) | |
173 | { | |
174 | ve[4] = SCM_BOOL_F; | |
175 | return ans; | |
176 | } | |
177 | for (argv = entry->h_addr_list; argv[i]; i++); | |
178 | while (i--) | |
179 | { | |
180 | inad = *(struct in_addr *) argv[i]; | |
181 | lst = scm_cons (scm_ulong2num (ntohl (inad.s_addr)), lst); | |
182 | } | |
183 | ve[4] = lst; | |
184 | return ans; | |
185 | } | |
186 | ||
187 | ||
02b754d3 | 188 | SCM_PROC (s_sys_getnet, "getnet", 0, 1, 0, scm_sys_getnet); |
0f2d19dd JB |
189 | #ifdef __STDC__ |
190 | SCM | |
191 | scm_sys_getnet (SCM name) | |
192 | #else | |
193 | SCM | |
194 | scm_sys_getnet (name) | |
195 | SCM name; | |
196 | #endif | |
197 | { | |
198 | SCM ans; | |
199 | SCM *ve; | |
200 | struct netent *entry; | |
201 | ||
202 | ans = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F); | |
203 | ve = SCM_VELTS (ans); | |
204 | if (SCM_UNBNDP (name)) | |
205 | { | |
206 | SCM_DEFER_INTS; | |
207 | entry = getnetent (); | |
208 | } | |
209 | else if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
210 | { | |
211 | SCM_DEFER_INTS; | |
212 | entry = getnetbyname (SCM_CHARS (name)); | |
213 | } | |
214 | else | |
215 | { | |
216 | unsigned long netnum; | |
217 | netnum = scm_num2ulong (name, (char *) SCM_ARG1, s_sys_getnet); | |
218 | SCM_DEFER_INTS; | |
219 | entry = getnetbyaddr (netnum, AF_INET); | |
220 | } | |
221 | SCM_ALLOW_INTS; | |
222 | if (!entry) | |
02b754d3 | 223 | SCM_SYSERROR (s_sys_getnet); |
0f2d19dd JB |
224 | ve[0] = scm_makfromstr (entry->n_name, (scm_sizet) strlen (entry->n_name), 0); |
225 | ve[1] = scm_makfromstrs (-1, entry->n_aliases); | |
226 | ve[2] = SCM_MAKINUM (entry->n_addrtype + 0L); | |
227 | ve[3] = scm_ulong2num (entry->n_net + 0L); | |
228 | return ans; | |
229 | } | |
230 | ||
02b754d3 | 231 | SCM_PROC (s_sys_getproto, "getproto", 0, 1, 0, scm_sys_getproto); |
0f2d19dd JB |
232 | #ifdef __STDC__ |
233 | SCM | |
234 | scm_sys_getproto (SCM name) | |
235 | #else | |
236 | SCM | |
237 | scm_sys_getproto (name) | |
238 | SCM name; | |
239 | #endif | |
240 | { | |
241 | SCM ans; | |
242 | SCM *ve; | |
243 | struct protoent *entry; | |
244 | ||
245 | ans = scm_make_vector (SCM_MAKINUM (3), SCM_UNSPECIFIED, SCM_BOOL_F); | |
246 | ve = SCM_VELTS (ans); | |
247 | if (SCM_UNBNDP (name)) | |
248 | { | |
249 | SCM_DEFER_INTS; | |
250 | entry = getprotoent (); | |
251 | } | |
252 | else if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
253 | { | |
254 | SCM_DEFER_INTS; | |
255 | entry = getprotobyname (SCM_CHARS (name)); | |
256 | } | |
257 | else | |
258 | { | |
259 | unsigned long protonum; | |
260 | protonum = scm_num2ulong (name, (char *) SCM_ARG1, s_sys_getproto); | |
261 | SCM_DEFER_INTS; | |
262 | entry = getprotobynumber (protonum); | |
263 | } | |
264 | SCM_ALLOW_INTS; | |
265 | if (!entry) | |
02b754d3 | 266 | SCM_SYSERROR (s_sys_getproto); |
0f2d19dd JB |
267 | ve[0] = scm_makfromstr (entry->p_name, (scm_sizet) strlen (entry->p_name), 0); |
268 | ve[1] = scm_makfromstrs (-1, entry->p_aliases); | |
269 | ve[2] = SCM_MAKINUM (entry->p_proto + 0L); | |
270 | return ans; | |
271 | } | |
272 | ||
273 | #ifdef __STDC__ | |
274 | static SCM | |
275 | scm_return_entry (struct servent *entry) | |
276 | #else | |
277 | static SCM | |
278 | scm_return_entry (entry) | |
279 | struct servent *entry; | |
280 | #endif | |
281 | { | |
282 | SCM ans; | |
283 | SCM *ve; | |
284 | ||
285 | ans = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F); | |
286 | ve = SCM_VELTS (ans); | |
0f2d19dd JB |
287 | ve[0] = scm_makfromstr (entry->s_name, (scm_sizet) strlen (entry->s_name), 0); |
288 | ve[1] = scm_makfromstrs (-1, entry->s_aliases); | |
289 | ve[2] = SCM_MAKINUM (ntohs (entry->s_port) + 0L); | |
290 | ve[3] = scm_makfromstr (entry->s_proto, (scm_sizet) strlen (entry->s_proto), 0); | |
291 | SCM_ALLOW_INTS; | |
292 | return ans; | |
293 | } | |
294 | ||
02b754d3 | 295 | SCM_PROC (s_sys_getserv, "getserv", 0, 2, 0, scm_sys_getserv); |
0f2d19dd JB |
296 | #ifdef __STDC__ |
297 | SCM | |
298 | scm_sys_getserv (SCM name, SCM proto) | |
299 | #else | |
300 | SCM | |
301 | scm_sys_getserv (name, proto) | |
302 | SCM name; | |
303 | SCM proto; | |
304 | #endif | |
305 | { | |
306 | struct servent *entry; | |
307 | if (SCM_UNBNDP (name)) | |
308 | { | |
309 | SCM_DEFER_INTS; | |
310 | entry = getservent (); | |
02b754d3 GH |
311 | if (!entry) |
312 | SCM_SYSERROR (s_sys_getserv); | |
0f2d19dd JB |
313 | return scm_return_entry (entry); |
314 | } | |
315 | SCM_ASSERT (SCM_NIMP (proto) && SCM_STRINGP (proto), proto, SCM_ARG2, s_sys_getserv); | |
316 | if (SCM_NIMP (name) && SCM_STRINGP (name)) | |
317 | { | |
318 | SCM_DEFER_INTS; | |
319 | entry = getservbyname (SCM_CHARS (name), SCM_CHARS (proto)); | |
320 | } | |
321 | else | |
322 | { | |
323 | SCM_ASSERT (SCM_INUMP (name), name, SCM_ARG1, s_sys_getserv); | |
324 | SCM_DEFER_INTS; | |
325 | entry = getservbyport (SCM_INUM (name), SCM_CHARS (proto)); | |
326 | } | |
02b754d3 GH |
327 | if (!entry) |
328 | SCM_SYSERROR (s_sys_getserv); | |
0f2d19dd JB |
329 | return scm_return_entry (entry); |
330 | } | |
331 | ||
332 | SCM_PROC (s_sethost, "sethost", 0, 1, 0, scm_sethost); | |
333 | #ifdef __STDC__ | |
334 | SCM | |
335 | scm_sethost (SCM arg) | |
336 | #else | |
337 | SCM | |
338 | scm_sethost (arg) | |
339 | SCM arg; | |
340 | #endif | |
341 | { | |
342 | if (SCM_UNBNDP (arg)) | |
343 | endhostent (); | |
344 | else | |
345 | sethostent (SCM_NFALSEP (arg)); | |
346 | return SCM_UNSPECIFIED; | |
347 | } | |
348 | ||
349 | SCM_PROC (s_setnet, "setnet", 0, 1, 0, scm_setnet); | |
350 | #ifdef __STDC__ | |
351 | SCM | |
352 | scm_setnet (SCM arg) | |
353 | #else | |
354 | SCM | |
355 | scm_setnet (arg) | |
356 | SCM arg; | |
357 | #endif | |
358 | { | |
359 | if (SCM_UNBNDP (arg)) | |
360 | endnetent (); | |
361 | else | |
362 | setnetent (SCM_NFALSEP (arg)); | |
363 | return SCM_UNSPECIFIED; | |
364 | } | |
365 | ||
366 | SCM_PROC (s_setproto, "setproto", 0, 1, 0, scm_setproto); | |
367 | #ifdef __STDC__ | |
368 | SCM | |
369 | scm_setproto (SCM arg) | |
370 | #else | |
371 | SCM | |
372 | scm_setproto (arg) | |
373 | SCM arg; | |
374 | #endif | |
375 | { | |
376 | if (SCM_UNBNDP (arg)) | |
377 | endprotoent (); | |
378 | else | |
379 | setprotoent (SCM_NFALSEP (arg)); | |
380 | return SCM_UNSPECIFIED; | |
381 | } | |
382 | ||
383 | SCM_PROC (s_setserv, "setserv", 0, 1, 0, scm_setserv); | |
384 | #ifdef __STDC__ | |
385 | SCM | |
386 | scm_setserv (SCM arg) | |
387 | #else | |
388 | SCM | |
389 | scm_setserv (arg) | |
390 | SCM arg; | |
391 | #endif | |
392 | { | |
393 | if (SCM_UNBNDP (arg)) | |
394 | endservent (); | |
395 | else | |
396 | setservent (SCM_NFALSEP (arg)); | |
397 | return SCM_UNSPECIFIED; | |
398 | } | |
399 | ||
400 | #ifdef __STDC__ | |
401 | void | |
402 | scm_init_socket (void) | |
403 | #else | |
404 | void | |
405 | scm_init_socket () | |
406 | #endif | |
407 | { | |
408 | scm_add_feature ("socket"); | |
409 | #include "socket.x" | |
410 | } | |
411 | ||
412 |