Commit | Line | Data |
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09270afd | 1 | /* Copyright (C) 1996,1997,1998,2000,2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
86667910 | 2 | * |
73be1d9e MV |
3 | * This library is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
86667910 | 7 | * |
73be1d9e MV |
8 | * This library is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * Lesser General Public License for more details. | |
86667910 | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
16 | */ | |
1bbd0b84 | 17 | |
1bbd0b84 | 18 | |
0f2d19dd JB |
19 | \f |
20 | ||
eccde741 RB |
21 | #if HAVE_CONFIG_H |
22 | # include <config.h> | |
23 | #endif | |
24 | ||
e6e2e95a | 25 | #include <errno.h> |
69d49ac8 | 26 | #include <gmp.h> |
e6e2e95a | 27 | |
a0599745 MD |
28 | #include "libguile/_scm.h" |
29 | #include "libguile/unif.h" | |
30 | #include "libguile/feature.h" | |
31 | #include "libguile/fports.h" | |
32 | #include "libguile/strings.h" | |
33 | #include "libguile/vectors.h" | |
20e6290e | 34 | |
a0599745 MD |
35 | #include "libguile/validate.h" |
36 | #include "libguile/socket.h" | |
95b88819 | 37 | |
b4e15479 SJ |
38 | #ifdef __MINGW32__ |
39 | #include "win32-socket.h" | |
40 | #endif | |
41 | ||
af68e5e5 SJ |
42 | #ifdef HAVE_STDINT_H |
43 | #include <stdint.h> | |
44 | #endif | |
95b88819 GH |
45 | #ifdef HAVE_STRING_H |
46 | #include <string.h> | |
47 | #endif | |
370312ae GH |
48 | #ifdef HAVE_UNISTD_H |
49 | #include <unistd.h> | |
50 | #endif | |
0f2d19dd | 51 | #include <sys/types.h> |
f87c105a | 52 | #ifdef HAVE_WINSOCK2_H |
82893676 MG |
53 | #include <winsock2.h> |
54 | #else | |
0f2d19dd | 55 | #include <sys/socket.h> |
1ba8c23a | 56 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
0f2d19dd | 57 | #include <sys/un.h> |
0e958795 | 58 | #endif |
0f2d19dd JB |
59 | #include <netinet/in.h> |
60 | #include <netdb.h> | |
61 | #include <arpa/inet.h> | |
82893676 | 62 | #endif |
0f2d19dd | 63 | |
97d0e20b GH |
64 | #if defined (HAVE_UNIX_DOMAIN_SOCKETS) && !defined (SUN_LEN) |
65 | #define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) \ | |
66 | + strlen ((ptr)->sun_path)) | |
67 | #endif | |
68 | ||
439006bf GH |
69 | /* we are not currently using socklen_t. it's not defined on all systems, |
70 | so would need to be checked by configure. in the meantime, plain | |
71 | int is the best alternative. */ | |
72 | ||
0f2d19dd JB |
73 | \f |
74 | ||
a1ec6916 | 75 | SCM_DEFINE (scm_htons, "htons", 1, 0, 0, |
eefae538 GH |
76 | (SCM value), |
77 | "Convert a 16 bit quantity from host to network byte ordering.\n" | |
78 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
79 | "and returned as a new integer.") | |
1bbd0b84 | 80 | #define FUNC_NAME s_scm_htons |
5c11cc9d GH |
81 | { |
82 | unsigned short c_in; | |
83 | ||
eefae538 GH |
84 | SCM_VALIDATE_INUM_COPY (1, value, c_in); |
85 | if (c_in != SCM_INUM (value)) | |
86 | SCM_OUT_OF_RANGE (1, value); | |
5c11cc9d | 87 | |
93ccaef0 | 88 | return SCM_I_MAKINUM (htons (c_in)); |
5c11cc9d | 89 | } |
1bbd0b84 | 90 | #undef FUNC_NAME |
5c11cc9d | 91 | |
a1ec6916 | 92 | SCM_DEFINE (scm_ntohs, "ntohs", 1, 0, 0, |
eefae538 GH |
93 | (SCM value), |
94 | "Convert a 16 bit quantity from network to host byte ordering.\n" | |
95 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
96 | "and returned as a new integer.") | |
1bbd0b84 | 97 | #define FUNC_NAME s_scm_ntohs |
5c11cc9d GH |
98 | { |
99 | unsigned short c_in; | |
100 | ||
eefae538 GH |
101 | SCM_VALIDATE_INUM_COPY (1, value, c_in); |
102 | if (c_in != SCM_INUM (value)) | |
103 | SCM_OUT_OF_RANGE (1, value); | |
5c11cc9d | 104 | |
93ccaef0 | 105 | return SCM_I_MAKINUM (ntohs (c_in)); |
5c11cc9d | 106 | } |
1bbd0b84 | 107 | #undef FUNC_NAME |
5c11cc9d | 108 | |
a1ec6916 | 109 | SCM_DEFINE (scm_htonl, "htonl", 1, 0, 0, |
eefae538 GH |
110 | (SCM value), |
111 | "Convert a 32 bit quantity from host to network byte ordering.\n" | |
112 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
113 | "and returned as a new integer.") | |
1bbd0b84 | 114 | #define FUNC_NAME s_scm_htonl |
5c11cc9d | 115 | { |
eccde741 | 116 | scm_t_uint32 c_in = SCM_NUM2ULONG (1, value); |
66c73b76 | 117 | |
5c11cc9d GH |
118 | return scm_ulong2num (htonl (c_in)); |
119 | } | |
1bbd0b84 | 120 | #undef FUNC_NAME |
5c11cc9d | 121 | |
a1ec6916 | 122 | SCM_DEFINE (scm_ntohl, "ntohl", 1, 0, 0, |
eefae538 GH |
123 | (SCM value), |
124 | "Convert a 32 bit quantity from network to host byte ordering.\n" | |
125 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
126 | "and returned as a new integer.") | |
1bbd0b84 | 127 | #define FUNC_NAME s_scm_ntohl |
5c11cc9d | 128 | { |
eccde741 | 129 | scm_t_uint32 c_in = SCM_NUM2ULONG (1, value); |
66c73b76 | 130 | |
5c11cc9d GH |
131 | return scm_ulong2num (ntohl (c_in)); |
132 | } | |
1bbd0b84 | 133 | #undef FUNC_NAME |
5c11cc9d | 134 | |
66c73b76 GH |
135 | #ifndef HAVE_INET_ATON |
136 | /* for our definition in inet_aton.c, not usually needed. */ | |
137 | extern int inet_aton (); | |
138 | #endif | |
139 | ||
140 | SCM_DEFINE (scm_inet_aton, "inet-aton", 1, 0, 0, | |
141 | (SCM address), | |
eefae538 GH |
142 | "Convert an IPv4 Internet address from printable string\n" |
143 | "(dotted decimal notation) to an integer. E.g.,\n\n" | |
66c73b76 GH |
144 | "@lisp\n" |
145 | "(inet-aton \"127.0.0.1\") @result{} 2130706433\n" | |
146 | "@end lisp") | |
147 | #define FUNC_NAME s_scm_inet_aton | |
148 | { | |
149 | struct in_addr soka; | |
150 | ||
151 | SCM_VALIDATE_STRING (1, address); | |
66c73b76 GH |
152 | if (inet_aton (SCM_STRING_CHARS (address), &soka) == 0) |
153 | SCM_MISC_ERROR ("bad address", SCM_EOL); | |
154 | return scm_ulong2num (ntohl (soka.s_addr)); | |
155 | } | |
156 | #undef FUNC_NAME | |
157 | ||
158 | ||
159 | SCM_DEFINE (scm_inet_ntoa, "inet-ntoa", 1, 0, 0, | |
160 | (SCM inetid), | |
eefae538 GH |
161 | "Convert an IPv4 Internet address to a printable\n" |
162 | "(dotted decimal notation) string. E.g.,\n\n" | |
66c73b76 GH |
163 | "@lisp\n" |
164 | "(inet-ntoa 2130706433) @result{} \"127.0.0.1\"\n" | |
165 | "@end lisp") | |
166 | #define FUNC_NAME s_scm_inet_ntoa | |
167 | { | |
168 | struct in_addr addr; | |
169 | char *s; | |
170 | SCM answer; | |
171 | addr.s_addr = htonl (SCM_NUM2ULONG (1, inetid)); | |
172 | s = inet_ntoa (addr); | |
36284627 | 173 | answer = scm_mem2string (s, strlen (s)); |
66c73b76 GH |
174 | return answer; |
175 | } | |
176 | #undef FUNC_NAME | |
177 | ||
178 | #ifdef HAVE_INET_NETOF | |
179 | SCM_DEFINE (scm_inet_netof, "inet-netof", 1, 0, 0, | |
180 | (SCM address), | |
eefae538 GH |
181 | "Return the network number part of the given IPv4\n" |
182 | "Internet address. E.g.,\n\n" | |
66c73b76 GH |
183 | "@lisp\n" |
184 | "(inet-netof 2130706433) @result{} 127\n" | |
185 | "@end lisp") | |
186 | #define FUNC_NAME s_scm_inet_netof | |
187 | { | |
188 | struct in_addr addr; | |
189 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
190 | return scm_ulong2num ((unsigned long) inet_netof (addr)); | |
191 | } | |
192 | #undef FUNC_NAME | |
193 | #endif | |
194 | ||
195 | #ifdef HAVE_INET_LNAOF | |
196 | SCM_DEFINE (scm_lnaof, "inet-lnaof", 1, 0, 0, | |
197 | (SCM address), | |
198 | "Return the local-address-with-network part of the given\n" | |
eefae538 GH |
199 | "IPv4 Internet address, using the obsolete class A/B/C system.\n" |
200 | "E.g.,\n\n" | |
66c73b76 GH |
201 | "@lisp\n" |
202 | "(inet-lnaof 2130706433) @result{} 1\n" | |
203 | "@end lisp") | |
204 | #define FUNC_NAME s_scm_lnaof | |
205 | { | |
206 | struct in_addr addr; | |
207 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
208 | return scm_ulong2num ((unsigned long) inet_lnaof (addr)); | |
209 | } | |
210 | #undef FUNC_NAME | |
211 | #endif | |
212 | ||
213 | #ifdef HAVE_INET_MAKEADDR | |
214 | SCM_DEFINE (scm_inet_makeaddr, "inet-makeaddr", 2, 0, 0, | |
215 | (SCM net, SCM lna), | |
eefae538 | 216 | "Make an IPv4 Internet address by combining the network number\n" |
66c73b76 | 217 | "@var{net} with the local-address-within-network number\n" |
eefae538 | 218 | "@var{lna}. E.g.,\n\n" |
66c73b76 GH |
219 | "@lisp\n" |
220 | "(inet-makeaddr 127 1) @result{} 2130706433\n" | |
221 | "@end lisp") | |
222 | #define FUNC_NAME s_scm_inet_makeaddr | |
223 | { | |
224 | struct in_addr addr; | |
225 | unsigned long netnum; | |
226 | unsigned long lnanum; | |
227 | ||
228 | netnum = SCM_NUM2ULONG (1, net); | |
229 | lnanum = SCM_NUM2ULONG (2, lna); | |
230 | addr = inet_makeaddr (netnum, lnanum); | |
231 | return scm_ulong2num (ntohl (addr.s_addr)); | |
232 | } | |
233 | #undef FUNC_NAME | |
234 | #endif | |
235 | ||
a57a0b1e | 236 | #ifdef HAVE_IPV6 |
eefae538 | 237 | |
66c73b76 GH |
238 | /* flip a 128 bit IPv6 address between host and network order. */ |
239 | #ifdef WORDS_BIGENDIAN | |
240 | #define FLIP_NET_HOST_128(addr) | |
241 | #else | |
242 | #define FLIP_NET_HOST_128(addr)\ | |
243 | {\ | |
244 | int i;\ | |
245 | \ | |
246 | for (i = 0; i < 8; i++)\ | |
247 | {\ | |
2de4f939 | 248 | scm_t_uint8 c = (addr)[i];\ |
66c73b76 GH |
249 | \ |
250 | (addr)[i] = (addr)[15 - i];\ | |
251 | (addr)[15 - i] = c;\ | |
252 | }\ | |
253 | } | |
254 | #endif | |
255 | ||
2de4f939 RB |
256 | #ifdef WORDS_BIGENDIAN |
257 | #define FLIPCPY_NET_HOST_128(dest, src) memcpy (dest, src, 16) | |
258 | #else | |
259 | #define FLIPCPY_NET_HOST_128(dest, src) \ | |
260 | { \ | |
261 | const scm_t_uint8 *tmp_srcp = (src) + 15; \ | |
262 | scm_t_uint8 *tmp_destp = (dest); \ | |
263 | \ | |
264 | do { \ | |
265 | *tmp_destp++ = *tmp_srcp--; \ | |
266 | } while (tmp_srcp != (src)); \ | |
267 | } | |
268 | #endif | |
269 | ||
270 | ||
7310ad0c | 271 | #if (SIZEOF_SCM_T_BITS * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
272 | #error "Assumption that scm_t_bits <= 128 bits has been violated." |
273 | #endif | |
274 | ||
7310ad0c | 275 | #if (SIZEOF_UNSIGNED_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
276 | #error "Assumption that unsigned long <= 128 bits has been violated." |
277 | #endif | |
278 | ||
7310ad0c | 279 | #if (SIZEOF_UNSIGNED_LONG_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
280 | #error "Assumption that unsigned long long <= 128 bits has been violated." |
281 | #endif | |
282 | ||
66c73b76 GH |
283 | /* convert a 128 bit IPv6 address in network order to a host ordered |
284 | SCM integer. */ | |
2de4f939 | 285 | static SCM ipv6_net_to_num (const scm_t_uint8 *src) |
66c73b76 | 286 | { |
2de4f939 RB |
287 | int i = 0; |
288 | const scm_t_uint8 *ptr = src; | |
289 | int num_zero_bytes = 0; | |
290 | scm_t_uint8 addr[16]; | |
66c73b76 | 291 | |
2de4f939 RB |
292 | /* count leading zeros (since we know it's bigendian, they'll be first) */ |
293 | while (i < 16) | |
66c73b76 | 294 | { |
2de4f939 RB |
295 | if (*ptr) break; |
296 | num_zero_bytes++; | |
297 | i++; | |
298 | } | |
66c73b76 | 299 | |
2de4f939 RB |
300 | if (SCM_SIZEOF_UNSIGNED_LONG_LONG != 0) /* compiler should optimize this */ |
301 | { | |
302 | if ((16 - num_zero_bytes) <= sizeof (unsigned long long)) | |
303 | { | |
304 | /* it fits */ | |
305 | unsigned long long x; | |
306 | ||
307 | FLIPCPY_NET_HOST_128(addr, src); | |
308 | #ifdef WORDS_BIGENDIAN | |
309 | memcpy (&x, addr + (16 - sizeof (x)), sizeof (x)); | |
310 | #else | |
311 | memcpy (&x, addr, sizeof (x)); | |
312 | #endif | |
313 | return scm_ulong_long2num (x); | |
314 | } | |
66c73b76 GH |
315 | } |
316 | else | |
317 | { | |
2de4f939 RB |
318 | if ((16 - num_zero_bytes) <= sizeof (unsigned long)) |
319 | { | |
320 | /* this is just so that we use INUM where possible. */ | |
321 | unsigned long x; | |
322 | ||
323 | FLIPCPY_NET_HOST_128(addr, src); | |
324 | #ifdef WORDS_BIGENDIAN | |
325 | memcpy (&x, addr + (16 - sizeof (x)), sizeof (x)); | |
326 | #else | |
327 | memcpy (&x, addr, sizeof (x)); | |
328 | #endif | |
329 | return scm_ulong2num (x); | |
330 | } | |
66c73b76 | 331 | } |
2de4f939 RB |
332 | /* otherwise get the big hammer */ |
333 | { | |
334 | SCM result = scm_i_mkbig (); | |
335 | ||
336 | mpz_import (SCM_I_BIG_MPZ (result), | |
337 | 1, /* chunk */ | |
338 | 1, /* big-endian chunk ordering */ | |
339 | 16, /* chunks are 16 bytes long */ | |
340 | 1, /* big-endian byte ordering */ | |
341 | 0, /* "nails" -- leading unused bits per chunk */ | |
342 | src); | |
343 | return scm_i_normbig (result); | |
344 | } | |
66c73b76 GH |
345 | } |
346 | ||
347 | /* convert a host ordered SCM integer to a 128 bit IPv6 address in | |
348 | network order. */ | |
2de4f939 | 349 | static void ipv6_num_to_net (SCM src, scm_t_uint8 *dst) |
66c73b76 | 350 | { |
2de4f939 | 351 | /* This code presumes that src has already been checked for range. */ |
66c73b76 GH |
352 | if (SCM_INUMP (src)) |
353 | { | |
2de4f939 RB |
354 | scm_t_signed_bits n = SCM_INUM (src); |
355 | #ifdef WORDS_BIGENDIAN | |
356 | memset (dst, 0, 16 - sizeof (scm_t_signed_bits)); | |
357 | memcpy (dst + (16 - sizeof (scm_t_signed_bits)), | |
358 | &n, | |
359 | sizeof (scm_t_signed_bits)); | |
360 | #else | |
361 | memset (dst + sizeof (scm_t_signed_bits), | |
362 | 0, | |
363 | 16 - sizeof (scm_t_signed_bits)); | |
364 | /* FIXME: this pair of ops is kinda wasteful -- should rewrite as | |
365 | a single loop perhaps, similar to the handling of bignums. */ | |
366 | memcpy (dst, &n, sizeof (scm_t_signed_bits)); | |
367 | FLIP_NET_HOST_128 (dst); | |
368 | #endif | |
66c73b76 GH |
369 | } |
370 | else | |
371 | { | |
2de4f939 RB |
372 | /* Presumes src has already been checked for fit -- see above. */ |
373 | size_t count; | |
66c73b76 | 374 | memset (dst, 0, 16); |
2de4f939 RB |
375 | mpz_export (dst, |
376 | &count, | |
377 | 1, /* big-endian chunk ordering */ | |
378 | 16, /* chunks are 16 bytes long */ | |
379 | 1, /* big-endian byte ordering */ | |
380 | 0, /* "nails" -- leading unused bits per chunk */ | |
381 | SCM_I_BIG_MPZ (src)); | |
382 | scm_remember_upto_here_1 (src); | |
66c73b76 GH |
383 | } |
384 | } | |
385 | ||
2de4f939 RB |
386 | static int |
387 | bignum_in_ipv6_range_p (SCM address) | |
388 | { | |
389 | int result; | |
390 | int sgn = mpz_sgn (SCM_I_BIG_MPZ (address)); | |
391 | ||
392 | if (sgn < 0) | |
393 | result = 0; | |
394 | else | |
395 | { | |
396 | int size = mpz_sizeinbase (SCM_I_BIG_MPZ (address), 2); | |
397 | if (size > 128) result = 0; | |
398 | else result = 1; | |
399 | } | |
400 | scm_remember_upto_here_1 (address); | |
401 | return result; | |
402 | } | |
403 | ||
66c73b76 GH |
404 | /* check that an SCM variable contains an IPv6 integer address. */ |
405 | #define VALIDATE_INET6(which_arg, address)\ | |
406 | if (SCM_INUMP (address))\ | |
407 | SCM_ASSERT_RANGE (which_arg, address, SCM_INUM (address) >= 0);\ | |
408 | else\ | |
409 | {\ | |
410 | SCM_VALIDATE_BIGINT (which_arg, address);\ | |
e8dde70d KR |
411 | SCM_ASSERT_RANGE (which_arg, address, \ |
412 | bignum_in_ipv6_range_p (address)); \ | |
66c73b76 GH |
413 | } |
414 | ||
415 | #ifdef HAVE_INET_PTON | |
416 | SCM_DEFINE (scm_inet_pton, "inet-pton", 2, 0, 0, | |
417 | (SCM family, SCM address), | |
eefae538 GH |
418 | "Convert a string containing a printable network address to\n" |
419 | "an integer address. Note that unlike the C version of this\n" | |
420 | "function,\n" | |
66c73b76 | 421 | "the result is an integer with normal host byte ordering.\n" |
eefae538 | 422 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" |
66c73b76 | 423 | "@lisp\n" |
dd85ce47 ML |
424 | "(inet-pton AF_INET \"127.0.0.1\") @result{} 2130706433\n" |
425 | "(inet-pton AF_INET6 \"::1\") @result{} 1\n" | |
66c73b76 GH |
426 | "@end lisp") |
427 | #define FUNC_NAME s_scm_inet_pton | |
428 | { | |
429 | int af; | |
430 | char *src; | |
431 | char dst[16]; | |
432 | int rv; | |
433 | ||
434 | SCM_VALIDATE_INUM_COPY (1, family, af); | |
435 | SCM_ASSERT_RANGE (1, family, af == AF_INET || af == AF_INET6); | |
436 | SCM_VALIDATE_STRING_COPY (2, address, src); | |
437 | rv = inet_pton (af, src, dst); | |
438 | if (rv == -1) | |
439 | SCM_SYSERROR; | |
440 | else if (rv == 0) | |
441 | SCM_MISC_ERROR ("Bad address", SCM_EOL); | |
442 | if (af == AF_INET) | |
eccde741 | 443 | return scm_ulong2num (ntohl (*(scm_t_uint32 *) dst)); |
66c73b76 GH |
444 | else |
445 | return ipv6_net_to_num ((char *) dst); | |
446 | } | |
447 | #undef FUNC_NAME | |
448 | #endif | |
449 | ||
450 | #ifdef HAVE_INET_NTOP | |
451 | SCM_DEFINE (scm_inet_ntop, "inet-ntop", 2, 0, 0, | |
452 | (SCM family, SCM address), | |
eefae538 | 453 | "Convert a network address into a printable string.\n" |
66c73b76 GH |
454 | "Note that unlike the C version of this function,\n" |
455 | "the input is an integer with normal host byte ordering.\n" | |
eefae538 | 456 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" |
66c73b76 | 457 | "@lisp\n" |
dd85ce47 | 458 | "(inet-ntop AF_INET 2130706433) @result{} \"127.0.0.1\"\n" |
66c73b76 GH |
459 | "(inet-ntop AF_INET6 (- (expt 2 128) 1)) @result{}\n" |
460 | "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\n" | |
461 | "@end lisp") | |
462 | #define FUNC_NAME s_scm_inet_ntop | |
463 | { | |
464 | int af; | |
465 | #ifdef INET6_ADDRSTRLEN | |
466 | char dst[INET6_ADDRSTRLEN]; | |
467 | #else | |
468 | char dst[46]; | |
469 | #endif | |
470 | char addr6[16]; | |
471 | ||
472 | SCM_VALIDATE_INUM_COPY (1, family, af); | |
473 | SCM_ASSERT_RANGE (1, family, af == AF_INET || af == AF_INET6); | |
474 | if (af == AF_INET) | |
eccde741 | 475 | *(scm_t_uint32 *) addr6 = htonl (SCM_NUM2ULONG (2, address)); |
66c73b76 GH |
476 | else |
477 | { | |
478 | VALIDATE_INET6 (2, address); | |
479 | ipv6_num_to_net (address, addr6); | |
480 | } | |
481 | if (inet_ntop (af, &addr6, dst, sizeof dst) == NULL) | |
482 | SCM_SYSERROR; | |
483 | return scm_makfrom0str (dst); | |
484 | } | |
485 | #undef FUNC_NAME | |
486 | #endif | |
487 | ||
a57a0b1e | 488 | #endif /* HAVE_IPV6 */ |
eefae538 | 489 | |
bc45012d | 490 | SCM_SYMBOL (sym_socket, "socket"); |
82ddea4e | 491 | |
439006bf | 492 | #define SCM_SOCK_FD_TO_PORT(fd) scm_fdes_to_port (fd, "r+0", sym_socket) |
1bbd0b84 | 493 | |
a1ec6916 | 494 | SCM_DEFINE (scm_socket, "socket", 3, 0, 0, |
1bbd0b84 | 495 | (SCM family, SCM style, SCM proto), |
1e6808ea | 496 | "Return a new socket port of the type specified by @var{family},\n" |
eefae538 | 497 | "@var{style} and @var{proto}. All three parameters are\n" |
3453619b GH |
498 | "integers. Supported values for @var{family} are\n" |
499 | "@code{AF_UNIX}, @code{AF_INET} and @code{AF_INET6}.\n" | |
500 | "Typical values for @var{style} are @code{SOCK_STREAM},\n" | |
eefae538 GH |
501 | "@code{SOCK_DGRAM} and @code{SOCK_RAW}.\n\n" |
502 | "@var{proto} can be obtained from a protocol name using\n" | |
1e6808ea | 503 | "@code{getprotobyname}. A value of zero specifies the default\n" |
eefae538 | 504 | "protocol, which is usually right.\n\n" |
1e6808ea MG |
505 | "A single socket port cannot by used for communication until it\n" |
506 | "has been connected to another socket.") | |
1bbd0b84 | 507 | #define FUNC_NAME s_scm_socket |
0f2d19dd | 508 | { |
370312ae | 509 | int fd; |
370312ae | 510 | |
439006bf GH |
511 | SCM_VALIDATE_INUM (1, family); |
512 | SCM_VALIDATE_INUM (2, style); | |
513 | SCM_VALIDATE_INUM (3, proto); | |
370312ae | 514 | fd = socket (SCM_INUM (family), SCM_INUM (style), SCM_INUM (proto)); |
439006bf GH |
515 | if (fd == -1) |
516 | SCM_SYSERROR; | |
517 | return SCM_SOCK_FD_TO_PORT (fd); | |
0f2d19dd | 518 | } |
1bbd0b84 | 519 | #undef FUNC_NAME |
0f2d19dd | 520 | |
0e958795 | 521 | #ifdef HAVE_SOCKETPAIR |
a1ec6916 | 522 | SCM_DEFINE (scm_socketpair, "socketpair", 3, 0, 0, |
1bbd0b84 | 523 | (SCM family, SCM style, SCM proto), |
1e6808ea | 524 | "Return a pair of connected (but unnamed) socket ports of the\n" |
eefae538 | 525 | "type specified by @var{family}, @var{style} and @var{proto}.\n" |
1e6808ea MG |
526 | "Many systems support only socket pairs of the @code{AF_UNIX}\n" |
527 | "family. Zero is likely to be the only meaningful value for\n" | |
eefae538 | 528 | "@var{proto}.") |
1bbd0b84 | 529 | #define FUNC_NAME s_scm_socketpair |
0f2d19dd | 530 | { |
370312ae GH |
531 | int fam; |
532 | int fd[2]; | |
370312ae | 533 | |
34d19ef6 HWN |
534 | SCM_VALIDATE_INUM (1, family); |
535 | SCM_VALIDATE_INUM (2, style); | |
536 | SCM_VALIDATE_INUM (3, proto); | |
370312ae GH |
537 | |
538 | fam = SCM_INUM (family); | |
539 | ||
370312ae | 540 | if (socketpair (fam, SCM_INUM (style), SCM_INUM (proto), fd) == -1) |
1bbd0b84 | 541 | SCM_SYSERROR; |
370312ae | 542 | |
439006bf | 543 | return scm_cons (SCM_SOCK_FD_TO_PORT (fd[0]), SCM_SOCK_FD_TO_PORT (fd[1])); |
0f2d19dd | 544 | } |
1bbd0b84 | 545 | #undef FUNC_NAME |
0e958795 | 546 | #endif |
0f2d19dd | 547 | |
a1ec6916 | 548 | SCM_DEFINE (scm_getsockopt, "getsockopt", 3, 0, 0, |
1bbd0b84 | 549 | (SCM sock, SCM level, SCM optname), |
1e6808ea | 550 | "Return the value of a particular socket option for the socket\n" |
eefae538 | 551 | "port @var{sock}. @var{level} is an integer code for type of\n" |
1e6808ea MG |
552 | "option being requested, e.g., @code{SOL_SOCKET} for\n" |
553 | "socket-level options. @var{optname} is an integer code for the\n" | |
554 | "option required and should be specified using one of the\n" | |
eefae538 | 555 | "symbols @code{SO_DEBUG}, @code{SO_REUSEADDR} etc.\n\n" |
1e6808ea MG |
556 | "The returned value is typically an integer but @code{SO_LINGER}\n" |
557 | "returns a pair of integers.") | |
1bbd0b84 | 558 | #define FUNC_NAME s_scm_getsockopt |
0f2d19dd | 559 | { |
370312ae | 560 | int fd; |
439006bf | 561 | /* size of optval is the largest supported option. */ |
370312ae GH |
562 | #ifdef HAVE_STRUCT_LINGER |
563 | char optval[sizeof (struct linger)]; | |
439006bf | 564 | int optlen = sizeof (struct linger); |
370312ae | 565 | #else |
1be6b49c ML |
566 | char optval[sizeof (size_t)]; |
567 | int optlen = sizeof (size_t); | |
370312ae GH |
568 | #endif |
569 | int ilevel; | |
570 | int ioptname; | |
0f2d19dd | 571 | |
78446828 | 572 | sock = SCM_COERCE_OUTPORT (sock); |
2cf6d014 MD |
573 | SCM_VALIDATE_OPFPORT (1, sock); |
574 | SCM_VALIDATE_INUM_COPY (2, level, ilevel); | |
575 | SCM_VALIDATE_INUM_COPY (3, optname, ioptname); | |
0f2d19dd | 576 | |
ee149d03 | 577 | fd = SCM_FPORT_FDES (sock); |
370312ae | 578 | if (getsockopt (fd, ilevel, ioptname, (void *) optval, &optlen) == -1) |
1bbd0b84 | 579 | SCM_SYSERROR; |
1cc91f1b | 580 | |
439006bf | 581 | if (ilevel == SOL_SOCKET) |
0f2d19dd | 582 | { |
439006bf GH |
583 | #ifdef SO_LINGER |
584 | if (ioptname == SO_LINGER) | |
585 | { | |
370312ae | 586 | #ifdef HAVE_STRUCT_LINGER |
439006bf GH |
587 | struct linger *ling = (struct linger *) optval; |
588 | ||
589 | return scm_cons (scm_long2num (ling->l_onoff), | |
590 | scm_long2num (ling->l_linger)); | |
370312ae | 591 | #else |
82893676 | 592 | return scm_cons (scm_long2num (*(int *) optval), |
93ccaef0 | 593 | SCM_I_MAKINUM (0)); |
0f2d19dd | 594 | #endif |
439006bf GH |
595 | } |
596 | else | |
370312ae | 597 | #endif |
439006bf | 598 | if (0 |
370312ae | 599 | #ifdef SO_SNDBUF |
439006bf | 600 | || ioptname == SO_SNDBUF |
370312ae GH |
601 | #endif |
602 | #ifdef SO_RCVBUF | |
439006bf | 603 | || ioptname == SO_RCVBUF |
370312ae | 604 | #endif |
439006bf GH |
605 | ) |
606 | { | |
1be6b49c | 607 | return scm_long2num (*(size_t *) optval); |
439006bf GH |
608 | } |
609 | } | |
610 | return scm_long2num (*(int *) optval); | |
0f2d19dd | 611 | } |
1bbd0b84 | 612 | #undef FUNC_NAME |
0f2d19dd | 613 | |
a1ec6916 | 614 | SCM_DEFINE (scm_setsockopt, "setsockopt", 4, 0, 0, |
1bbd0b84 | 615 | (SCM sock, SCM level, SCM optname, SCM value), |
eefae538 GH |
616 | "Set the value of a particular socket option for the socket\n" |
617 | "port @var{sock}. @var{level} is an integer code for type of option\n" | |
b380b885 MD |
618 | "being set, e.g., @code{SOL_SOCKET} for socket-level options.\n" |
619 | "@var{optname} is an\n" | |
620 | "integer code for the option to set and should be specified using one of\n" | |
621 | "the symbols @code{SO_DEBUG}, @code{SO_REUSEADDR} etc.\n" | |
622 | "@var{value} is the value to which the option should be set. For\n" | |
623 | "most options this must be an integer, but for @code{SO_LINGER} it must\n" | |
624 | "be a pair.\n\n" | |
625 | "The return value is unspecified.") | |
1bbd0b84 | 626 | #define FUNC_NAME s_scm_setsockopt |
0f2d19dd | 627 | { |
370312ae | 628 | int fd; |
439006bf GH |
629 | int optlen = -1; |
630 | /* size of optval is the largest supported option. */ | |
370312ae | 631 | #ifdef HAVE_STRUCT_LINGER |
439006bf | 632 | char optval[sizeof (struct linger)]; |
370312ae | 633 | #else |
1be6b49c | 634 | char optval[sizeof (size_t)]; |
370312ae GH |
635 | #endif |
636 | int ilevel, ioptname; | |
439006bf | 637 | |
78446828 | 638 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf GH |
639 | |
640 | SCM_VALIDATE_OPFPORT (1, sock); | |
641 | SCM_VALIDATE_INUM_COPY (2, level, ilevel); | |
642 | SCM_VALIDATE_INUM_COPY (3, optname, ioptname); | |
643 | ||
ee149d03 | 644 | fd = SCM_FPORT_FDES (sock); |
439006bf GH |
645 | |
646 | if (ilevel == SOL_SOCKET) | |
370312ae | 647 | { |
439006bf GH |
648 | #ifdef SO_LINGER |
649 | if (ioptname == SO_LINGER) | |
650 | { | |
370312ae | 651 | #ifdef HAVE_STRUCT_LINGER |
439006bf GH |
652 | struct linger ling; |
653 | long lv; | |
654 | ||
655 | SCM_ASSERT (SCM_CONSP (value), value, SCM_ARG4, FUNC_NAME); | |
656 | lv = SCM_NUM2LONG (4, SCM_CAR (value)); | |
657 | ling.l_onoff = (int) lv; | |
658 | SCM_ASSERT_RANGE (SCM_ARG4, value, ling.l_onoff == lv); | |
659 | lv = SCM_NUM2LONG (4, SCM_CDR (value)); | |
660 | ling.l_linger = (int) lv; | |
661 | SCM_ASSERT_RANGE (SCM_ARG4, value, ling.l_linger == lv); | |
662 | optlen = (int) sizeof (struct linger); | |
663 | memcpy (optval, (void *) &ling, optlen); | |
370312ae | 664 | #else |
439006bf GH |
665 | int ling; |
666 | long lv; | |
667 | ||
668 | SCM_ASSERT (SCM_CONSP (value), value, SCM_ARG4, FUNC_NAME); | |
669 | /* timeout is ignored, but may as well validate it. */ | |
670 | lv = SCM_NUM2LONG (4, SCM_CDR (value)); | |
671 | ling = (int) lv; | |
672 | SCM_ASSERT_RANGE (SCM_ARG4, value, ling == lv); | |
673 | lv = SCM_NUM2LONG (4, SCM_CAR (value)); | |
674 | ling = (int) lv; | |
675 | SCM_ASSERT_RANGE (SCM_ARG4, value, ling == lv); | |
676 | optlen = (int) sizeof (int); | |
677 | (*(int *) optval) = ling; | |
678 | #endif | |
679 | } | |
680 | else | |
681 | #endif | |
682 | if (0 | |
370312ae | 683 | #ifdef SO_SNDBUF |
439006bf | 684 | || ioptname == SO_SNDBUF |
370312ae GH |
685 | #endif |
686 | #ifdef SO_RCVBUF | |
439006bf | 687 | || ioptname == SO_RCVBUF |
370312ae | 688 | #endif |
439006bf GH |
689 | ) |
690 | { | |
691 | long lv = SCM_NUM2LONG (4, value); | |
692 | ||
1be6b49c ML |
693 | optlen = (int) sizeof (size_t); |
694 | (*(size_t *) optval) = (size_t) lv; | |
439006bf GH |
695 | } |
696 | } | |
697 | if (optlen == -1) | |
0f2d19dd | 698 | { |
439006bf GH |
699 | /* Most options take an int. */ |
700 | long lv = SCM_NUM2LONG (4, value); | |
701 | int val = (int) lv; | |
702 | ||
703 | SCM_ASSERT_RANGE (SCM_ARG4, value, val == lv); | |
370312ae | 704 | optlen = (int) sizeof (int); |
439006bf | 705 | (*(int *) optval) = val; |
0f2d19dd | 706 | } |
370312ae | 707 | if (setsockopt (fd, ilevel, ioptname, (void *) optval, optlen) == -1) |
1bbd0b84 | 708 | SCM_SYSERROR; |
370312ae | 709 | return SCM_UNSPECIFIED; |
0f2d19dd | 710 | } |
1bbd0b84 | 711 | #undef FUNC_NAME |
0f2d19dd | 712 | |
a1ec6916 | 713 | SCM_DEFINE (scm_shutdown, "shutdown", 2, 0, 0, |
1bbd0b84 | 714 | (SCM sock, SCM how), |
b380b885 | 715 | "Sockets can be closed simply by using @code{close-port}. The\n" |
bb2c02f2 | 716 | "@code{shutdown} procedure allows reception or transmission on a\n" |
b380b885 MD |
717 | "connection to be shut down individually, according to the parameter\n" |
718 | "@var{how}:\n\n" | |
719 | "@table @asis\n" | |
720 | "@item 0\n" | |
721 | "Stop receiving data for this socket. If further data arrives, reject it.\n" | |
722 | "@item 1\n" | |
723 | "Stop trying to transmit data from this socket. Discard any\n" | |
724 | "data waiting to be sent. Stop looking for acknowledgement of\n" | |
725 | "data already sent; don't retransmit it if it is lost.\n" | |
726 | "@item 2\n" | |
727 | "Stop both reception and transmission.\n" | |
728 | "@end table\n\n" | |
729 | "The return value is unspecified.") | |
1bbd0b84 | 730 | #define FUNC_NAME s_scm_shutdown |
0f2d19dd | 731 | { |
370312ae | 732 | int fd; |
78446828 | 733 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 HWN |
734 | SCM_VALIDATE_OPFPORT (1, sock); |
735 | SCM_VALIDATE_INUM (2, how); | |
736 | SCM_ASSERT_RANGE(2, how,0 <= SCM_INUM (how) && 2 >= SCM_INUM (how)); | |
ee149d03 | 737 | fd = SCM_FPORT_FDES (sock); |
370312ae | 738 | if (shutdown (fd, SCM_INUM (how)) == -1) |
1bbd0b84 | 739 | SCM_SYSERROR; |
370312ae GH |
740 | return SCM_UNSPECIFIED; |
741 | } | |
1bbd0b84 | 742 | #undef FUNC_NAME |
0f2d19dd | 743 | |
370312ae GH |
744 | /* convert fam/address/args into a sockaddr of the appropriate type. |
745 | args is modified by removing the arguments actually used. | |
746 | which_arg and proc are used when reporting errors: | |
747 | which_arg is the position of address in the original argument list. | |
748 | proc is the name of the original procedure. | |
749 | size returns the size of the structure allocated. */ | |
750 | ||
370312ae | 751 | static struct sockaddr * |
439006bf GH |
752 | scm_fill_sockaddr (int fam, SCM address, SCM *args, int which_arg, |
753 | const char *proc, int *size) | |
3453619b | 754 | #define FUNC_NAME proc |
370312ae GH |
755 | { |
756 | switch (fam) | |
0f2d19dd | 757 | { |
370312ae GH |
758 | case AF_INET: |
759 | { | |
370312ae | 760 | struct sockaddr_in *soka; |
3453619b GH |
761 | unsigned long addr; |
762 | int port; | |
370312ae | 763 | |
3453619b GH |
764 | SCM_VALIDATE_ULONG_COPY (which_arg, address, addr); |
765 | SCM_VALIDATE_CONS (which_arg + 1, *args); | |
766 | SCM_VALIDATE_INUM_COPY (which_arg + 1, SCM_CAR (*args), port); | |
767 | *args = SCM_CDR (*args); | |
67329a9e | 768 | soka = (struct sockaddr_in *) scm_malloc (sizeof (struct sockaddr_in)); |
439006bf GH |
769 | if (!soka) |
770 | scm_memory_error (proc); | |
3453619b GH |
771 | /* 4.4BSD-style interface includes sin_len member and defines SIN_LEN, |
772 | 4.3BSD does not. */ | |
773 | #ifdef SIN_LEN | |
774 | soka->sin_len = sizeof (struct sockaddr_in); | |
775 | #endif | |
370312ae | 776 | soka->sin_family = AF_INET; |
3453619b GH |
777 | soka->sin_addr.s_addr = htonl (addr); |
778 | soka->sin_port = htons (port); | |
370312ae GH |
779 | *size = sizeof (struct sockaddr_in); |
780 | return (struct sockaddr *) soka; | |
781 | } | |
a57a0b1e | 782 | #ifdef HAVE_IPV6 |
3453619b GH |
783 | case AF_INET6: |
784 | { | |
785 | /* see RFC2553. */ | |
786 | int port; | |
787 | struct sockaddr_in6 *soka; | |
788 | unsigned long flowinfo = 0; | |
789 | unsigned long scope_id = 0; | |
790 | ||
66c73b76 | 791 | VALIDATE_INET6 (which_arg, address); |
3453619b GH |
792 | SCM_VALIDATE_CONS (which_arg + 1, *args); |
793 | SCM_VALIDATE_INUM_COPY (which_arg + 1, SCM_CAR (*args), port); | |
794 | *args = SCM_CDR (*args); | |
795 | if (SCM_CONSP (*args)) | |
796 | { | |
797 | SCM_VALIDATE_ULONG_COPY (which_arg + 2, SCM_CAR (*args), flowinfo); | |
798 | *args = SCM_CDR (*args); | |
799 | if (SCM_CONSP (*args)) | |
800 | { | |
801 | SCM_VALIDATE_ULONG_COPY (which_arg + 3, SCM_CAR (*args), | |
802 | scope_id); | |
803 | *args = SCM_CDR (*args); | |
804 | } | |
805 | } | |
67329a9e | 806 | soka = (struct sockaddr_in6 *) scm_malloc (sizeof (struct sockaddr_in6)); |
3453619b GH |
807 | if (!soka) |
808 | scm_memory_error (proc); | |
809 | #ifdef SIN_LEN6 | |
810 | soka->sin6_len = sizeof (struct sockaddr_in6); | |
811 | #endif | |
812 | soka->sin6_family = AF_INET6; | |
66c73b76 | 813 | ipv6_num_to_net (address, soka->sin6_addr.s6_addr); |
5a525b84 | 814 | soka->sin6_port = htons (port); |
3453619b | 815 | soka->sin6_flowinfo = flowinfo; |
5a525b84 | 816 | #ifdef HAVE_SIN6_SCOPE_ID |
3453619b | 817 | soka->sin6_scope_id = scope_id; |
5a525b84 | 818 | #endif |
3453619b GH |
819 | *size = sizeof (struct sockaddr_in6); |
820 | return (struct sockaddr *) soka; | |
821 | } | |
822 | #endif | |
1ba8c23a | 823 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
370312ae GH |
824 | case AF_UNIX: |
825 | { | |
826 | struct sockaddr_un *soka; | |
439006bf | 827 | int addr_size; |
370312ae | 828 | |
a6d9e5ab | 829 | SCM_ASSERT (SCM_STRINGP (address), address, which_arg, proc); |
439006bf GH |
830 | /* the static buffer size in sockaddr_un seems to be arbitrary |
831 | and not necessarily a hard limit. e.g., the glibc manual | |
832 | suggests it may be possible to declare it size 0. let's | |
833 | ignore it. if the O/S doesn't like the size it will cause | |
834 | connect/bind etc., to fail. sun_path is always the last | |
835 | member of the structure. */ | |
836 | addr_size = sizeof (struct sockaddr_un) | |
837 | + max (0, SCM_STRING_LENGTH (address) + 1 - (sizeof soka->sun_path)); | |
67329a9e | 838 | soka = (struct sockaddr_un *) scm_malloc (addr_size); |
439006bf GH |
839 | if (!soka) |
840 | scm_memory_error (proc); | |
841 | memset (soka, 0, addr_size); /* for sun_len: see sin_len above. */ | |
842 | soka->sun_family = AF_UNIX; | |
34f0f2b8 | 843 | memcpy (soka->sun_path, SCM_STRING_CHARS (address), |
439006bf GH |
844 | SCM_STRING_LENGTH (address)); |
845 | *size = SUN_LEN (soka); | |
370312ae GH |
846 | return (struct sockaddr *) soka; |
847 | } | |
0e958795 | 848 | #endif |
370312ae | 849 | default: |
93ccaef0 | 850 | scm_out_of_range (proc, SCM_I_MAKINUM (fam)); |
0f2d19dd | 851 | } |
0f2d19dd | 852 | } |
3453619b | 853 | #undef FUNC_NAME |
370312ae | 854 | |
a1ec6916 | 855 | SCM_DEFINE (scm_connect, "connect", 3, 0, 1, |
1bbd0b84 | 856 | (SCM sock, SCM fam, SCM address, SCM args), |
eefae538 | 857 | "Initiate a connection from a socket using a specified address\n" |
3453619b GH |
858 | "family to the address\n" |
859 | "specified by @var{address} and possibly @var{args}.\n" | |
860 | "The format required for @var{address}\n" | |
861 | "and @var{args} depends on the family of the socket.\n\n" | |
b380b885 | 862 | "For a socket of family @code{AF_UNIX},\n" |
3453619b | 863 | "only @var{address} is specified and must be a string with the\n" |
b380b885 MD |
864 | "filename where the socket is to be created.\n\n" |
865 | "For a socket of family @code{AF_INET},\n" | |
3453619b GH |
866 | "@var{address} must be an integer IPv4 host address and\n" |
867 | "@var{args} must be a single integer port number.\n\n" | |
868 | "For a socket of family @code{AF_INET6},\n" | |
869 | "@var{address} must be an integer IPv6 host address and\n" | |
870 | "@var{args} may be up to three integers:\n" | |
871 | "port [flowinfo] [scope_id],\n" | |
872 | "where flowinfo and scope_id default to zero.\n\n" | |
b380b885 | 873 | "The return value is unspecified.") |
1bbd0b84 | 874 | #define FUNC_NAME s_scm_connect |
0f2d19dd | 875 | { |
370312ae GH |
876 | int fd; |
877 | struct sockaddr *soka; | |
439006bf | 878 | int size; |
0f2d19dd | 879 | |
78446828 | 880 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 HWN |
881 | SCM_VALIDATE_OPFPORT (1, sock); |
882 | SCM_VALIDATE_INUM (2, fam); | |
ee149d03 | 883 | fd = SCM_FPORT_FDES (sock); |
439006bf GH |
884 | soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args, 3, FUNC_NAME, |
885 | &size); | |
370312ae | 886 | if (connect (fd, soka, size) == -1) |
439006bf GH |
887 | { |
888 | int save_errno = errno; | |
889 | ||
890 | free (soka); | |
891 | errno = save_errno; | |
892 | SCM_SYSERROR; | |
893 | } | |
894 | free (soka); | |
370312ae | 895 | return SCM_UNSPECIFIED; |
0f2d19dd | 896 | } |
1bbd0b84 | 897 | #undef FUNC_NAME |
0f2d19dd | 898 | |
a1ec6916 | 899 | SCM_DEFINE (scm_bind, "bind", 3, 0, 1, |
1bbd0b84 | 900 | (SCM sock, SCM fam, SCM address, SCM args), |
eefae538 | 901 | "Assign an address to the socket port @var{sock}.\n" |
b380b885 MD |
902 | "Generally this only needs to be done for server sockets,\n" |
903 | "so they know where to look for incoming connections. A socket\n" | |
904 | "without an address will be assigned one automatically when it\n" | |
905 | "starts communicating.\n\n" | |
eefae538 GH |
906 | "The format of @var{address} and @var{args} depends\n" |
907 | "on the family of the socket.\n\n" | |
b380b885 | 908 | "For a socket of family @code{AF_UNIX}, only @var{address}\n" |
eefae538 GH |
909 | "is specified and must be a string with the filename where\n" |
910 | "the socket is to be created.\n\n" | |
911 | "For a socket of family @code{AF_INET}, @var{address}\n" | |
912 | "must be an integer IPv4 address and @var{args}\n" | |
913 | "must be a single integer port number.\n\n" | |
914 | "The values of the following variables can also be used for\n" | |
915 | "@var{address}:\n\n" | |
b380b885 MD |
916 | "@defvar INADDR_ANY\n" |
917 | "Allow connections from any address.\n" | |
918 | "@end defvar\n\n" | |
919 | "@defvar INADDR_LOOPBACK\n" | |
920 | "The address of the local host using the loopback device.\n" | |
921 | "@end defvar\n\n" | |
922 | "@defvar INADDR_BROADCAST\n" | |
923 | "The broadcast address on the local network.\n" | |
924 | "@end defvar\n\n" | |
925 | "@defvar INADDR_NONE\n" | |
926 | "No address.\n" | |
927 | "@end defvar\n\n" | |
eefae538 GH |
928 | "For a socket of family @code{AF_INET6}, @var{address}\n" |
929 | "must be an integer IPv6 address and @var{args}\n" | |
930 | "may be up to three integers:\n" | |
931 | "port [flowinfo] [scope_id],\n" | |
932 | "where flowinfo and scope_id default to zero.\n\n" | |
b380b885 | 933 | "The return value is unspecified.") |
1bbd0b84 | 934 | #define FUNC_NAME s_scm_bind |
370312ae | 935 | { |
370312ae | 936 | struct sockaddr *soka; |
439006bf | 937 | int size; |
370312ae GH |
938 | int fd; |
939 | ||
78446828 | 940 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf GH |
941 | SCM_VALIDATE_OPFPORT (1, sock); |
942 | SCM_VALIDATE_INUM (2, fam); | |
943 | soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args, 3, FUNC_NAME, | |
944 | &size); | |
ee149d03 | 945 | fd = SCM_FPORT_FDES (sock); |
439006bf GH |
946 | if (bind (fd, soka, size) == -1) |
947 | { | |
948 | int save_errno = errno; | |
949 | ||
950 | free (soka); | |
951 | errno = save_errno; | |
1bbd0b84 | 952 | SCM_SYSERROR; |
439006bf GH |
953 | } |
954 | free (soka); | |
370312ae GH |
955 | return SCM_UNSPECIFIED; |
956 | } | |
1bbd0b84 | 957 | #undef FUNC_NAME |
370312ae | 958 | |
a1ec6916 | 959 | SCM_DEFINE (scm_listen, "listen", 2, 0, 0, |
1bbd0b84 | 960 | (SCM sock, SCM backlog), |
eefae538 | 961 | "Enable @var{sock} to accept connection\n" |
b380b885 MD |
962 | "requests. @var{backlog} is an integer specifying\n" |
963 | "the maximum length of the queue for pending connections.\n" | |
eefae538 GH |
964 | "If the queue fills, new clients will fail to connect until\n" |
965 | "the server calls @code{accept} to accept a connection from\n" | |
966 | "the queue.\n\n" | |
b380b885 | 967 | "The return value is unspecified.") |
1bbd0b84 | 968 | #define FUNC_NAME s_scm_listen |
370312ae GH |
969 | { |
970 | int fd; | |
78446828 | 971 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 HWN |
972 | SCM_VALIDATE_OPFPORT (1, sock); |
973 | SCM_VALIDATE_INUM (2, backlog); | |
ee149d03 | 974 | fd = SCM_FPORT_FDES (sock); |
370312ae | 975 | if (listen (fd, SCM_INUM (backlog)) == -1) |
1bbd0b84 | 976 | SCM_SYSERROR; |
370312ae GH |
977 | return SCM_UNSPECIFIED; |
978 | } | |
1bbd0b84 | 979 | #undef FUNC_NAME |
370312ae GH |
980 | |
981 | /* Put the components of a sockaddr into a new SCM vector. */ | |
370312ae | 982 | static SCM |
aca23b65 MV |
983 | scm_addr_vector (const struct sockaddr *address, int addr_size, |
984 | const char *proc) | |
0f2d19dd | 985 | { |
370312ae | 986 | short int fam = address->sa_family; |
1d1559ce | 987 | SCM result =SCM_EOL; |
34d19ef6 | 988 | |
439006bf | 989 | |
5a525b84 | 990 | switch (fam) |
0f2d19dd | 991 | { |
5a525b84 GH |
992 | case AF_INET: |
993 | { | |
e1368a8d | 994 | const struct sockaddr_in *nad = (struct sockaddr_in *) address; |
439006bf | 995 | |
1d1559ce | 996 | result = scm_c_make_vector (3, SCM_UNSPECIFIED); |
34d19ef6 | 997 | |
1d1559ce HWN |
998 | SCM_VECTOR_SET(result, 0, scm_ulong2num ((unsigned long) fam)); |
999 | SCM_VECTOR_SET(result, 1, scm_ulong2num (ntohl (nad->sin_addr.s_addr))); | |
1000 | SCM_VECTOR_SET(result, 2, scm_ulong2num ((unsigned long) ntohs (nad->sin_port))); | |
5a525b84 GH |
1001 | } |
1002 | break; | |
a57a0b1e | 1003 | #ifdef HAVE_IPV6 |
5a525b84 GH |
1004 | case AF_INET6: |
1005 | { | |
e1368a8d | 1006 | const struct sockaddr_in6 *nad = (struct sockaddr_in6 *) address; |
5a525b84 | 1007 | |
1d1559ce HWN |
1008 | result = scm_c_make_vector (5, SCM_UNSPECIFIED); |
1009 | SCM_VECTOR_SET(result, 0, scm_ulong2num ((unsigned long) fam)); | |
1010 | SCM_VECTOR_SET(result, 1, ipv6_net_to_num (nad->sin6_addr.s6_addr)); | |
1011 | SCM_VECTOR_SET(result, 2, scm_ulong2num ((unsigned long) ntohs (nad->sin6_port))); | |
1012 | SCM_VECTOR_SET(result, 3, scm_ulong2num ((unsigned long) nad->sin6_flowinfo)); | |
5a525b84 | 1013 | #ifdef HAVE_SIN6_SCOPE_ID |
1d1559ce | 1014 | SCM_VECTOR_SET(result, 4, scm_ulong2num ((unsigned long) nad->sin6_scope_id)); |
5a525b84 | 1015 | #else |
1d1559ce | 1016 | SCM_VECTOR_SET(result, 4, SCM_INUM0); |
0e958795 | 1017 | #endif |
5a525b84 GH |
1018 | } |
1019 | break; | |
1020 | #endif | |
1021 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1022 | case AF_UNIX: | |
1023 | { | |
e1368a8d | 1024 | const struct sockaddr_un *nad = (struct sockaddr_un *) address; |
439006bf | 1025 | |
1d1559ce | 1026 | result = scm_c_make_vector (2, SCM_UNSPECIFIED); |
34d19ef6 | 1027 | |
1d1559ce | 1028 | SCM_VECTOR_SET(result, 0, scm_ulong2num ((unsigned long) fam)); |
aca23b65 MV |
1029 | /* When addr_size is not enough to cover sun_path, do not try |
1030 | to access it. */ | |
1031 | if (addr_size <= offsetof (struct sockaddr_un, sun_path)) | |
1032 | SCM_VECTOR_SET(result, 1, SCM_BOOL_F); | |
1033 | else | |
1034 | SCM_VECTOR_SET(result, 1, scm_mem2string (nad->sun_path, | |
1035 | strlen (nad->sun_path))); | |
5a525b84 GH |
1036 | } |
1037 | break; | |
1038 | #endif | |
1039 | default: | |
1040 | scm_misc_error (proc, "Unrecognised address family: ~A", | |
93ccaef0 | 1041 | scm_list_1 (SCM_I_MAKINUM (fam))); |
0f2d19dd | 1042 | } |
1d1559ce | 1043 | return result; |
370312ae GH |
1044 | } |
1045 | ||
439006bf GH |
1046 | /* calculate the size of a buffer large enough to hold any supported |
1047 | sockaddr type. if the buffer isn't large enough, certain system | |
1048 | calls will return a truncated address. */ | |
370312ae | 1049 | |
439006bf GH |
1050 | #if defined (HAVE_UNIX_DOMAIN_SOCKETS) |
1051 | #define MAX_SIZE_UN sizeof (struct sockaddr_un) | |
0e958795 | 1052 | #else |
439006bf | 1053 | #define MAX_SIZE_UN 0 |
0e958795 | 1054 | #endif |
439006bf | 1055 | |
a57a0b1e | 1056 | #if defined (HAVE_IPV6) |
5a525b84 GH |
1057 | #define MAX_SIZE_IN6 sizeof (struct sockaddr_in6) |
1058 | #else | |
1059 | #define MAX_SIZE_IN6 0 | |
1060 | #endif | |
1061 | ||
1062 | #define MAX_ADDR_SIZE max (max (sizeof (struct sockaddr_in), MAX_SIZE_IN6),\ | |
1063 | MAX_SIZE_UN) | |
0f2d19dd | 1064 | |
a1ec6916 | 1065 | SCM_DEFINE (scm_accept, "accept", 1, 0, 0, |
1bbd0b84 | 1066 | (SCM sock), |
eefae538 GH |
1067 | "Accept a connection on a bound, listening socket.\n" |
1068 | "If there\n" | |
1069 | "are no pending connections in the queue, wait until\n" | |
1070 | "one is available unless the non-blocking option has been\n" | |
1071 | "set on the socket.\n\n" | |
b380b885 | 1072 | "The return value is a\n" |
eefae538 GH |
1073 | "pair in which the @emph{car} is a new socket port for the\n" |
1074 | "connection and\n" | |
1075 | "the @emph{cdr} is an object with address information about the\n" | |
1076 | "client which initiated the connection.\n\n" | |
1077 | "@var{sock} does not become part of the\n" | |
b380b885 | 1078 | "connection and will continue to accept new requests.") |
1bbd0b84 | 1079 | #define FUNC_NAME s_scm_accept |
0f2d19dd | 1080 | { |
370312ae GH |
1081 | int fd; |
1082 | int newfd; | |
1083 | SCM address; | |
1084 | SCM newsock; | |
439006bf GH |
1085 | int addr_size = MAX_ADDR_SIZE; |
1086 | char max_addr[MAX_ADDR_SIZE]; | |
1087 | struct sockaddr *addr = (struct sockaddr *) max_addr; | |
370312ae | 1088 | |
78446828 | 1089 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 1090 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1091 | fd = SCM_FPORT_FDES (sock); |
439006bf GH |
1092 | newfd = accept (fd, addr, &addr_size); |
1093 | if (newfd == -1) | |
1094 | SCM_SYSERROR; | |
1095 | newsock = SCM_SOCK_FD_TO_PORT (newfd); | |
aca23b65 | 1096 | address = scm_addr_vector (addr, addr_size, FUNC_NAME); |
370312ae | 1097 | return scm_cons (newsock, address); |
0f2d19dd | 1098 | } |
1bbd0b84 | 1099 | #undef FUNC_NAME |
0f2d19dd | 1100 | |
a1ec6916 | 1101 | SCM_DEFINE (scm_getsockname, "getsockname", 1, 0, 0, |
1bbd0b84 | 1102 | (SCM sock), |
eefae538 | 1103 | "Return the address of @var{sock}, in the same form as the\n" |
1e6808ea MG |
1104 | "object returned by @code{accept}. On many systems the address\n" |
1105 | "of a socket in the @code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1106 | #define FUNC_NAME s_scm_getsockname |
0f2d19dd | 1107 | { |
370312ae | 1108 | int fd; |
439006bf GH |
1109 | int addr_size = MAX_ADDR_SIZE; |
1110 | char max_addr[MAX_ADDR_SIZE]; | |
1111 | struct sockaddr *addr = (struct sockaddr *) max_addr; | |
1112 | ||
78446828 | 1113 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1114 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1115 | fd = SCM_FPORT_FDES (sock); |
439006bf | 1116 | if (getsockname (fd, addr, &addr_size) == -1) |
1bbd0b84 | 1117 | SCM_SYSERROR; |
aca23b65 | 1118 | return scm_addr_vector (addr, addr_size, FUNC_NAME); |
0f2d19dd | 1119 | } |
1bbd0b84 | 1120 | #undef FUNC_NAME |
0f2d19dd | 1121 | |
a1ec6916 | 1122 | SCM_DEFINE (scm_getpeername, "getpeername", 1, 0, 0, |
1bbd0b84 | 1123 | (SCM sock), |
eefae538 | 1124 | "Return the address that @var{sock}\n" |
1e6808ea MG |
1125 | "is connected to, in the same form as the object returned by\n" |
1126 | "@code{accept}. On many systems the address of a socket in the\n" | |
1127 | "@code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1128 | #define FUNC_NAME s_scm_getpeername |
0f2d19dd | 1129 | { |
370312ae | 1130 | int fd; |
439006bf GH |
1131 | int addr_size = MAX_ADDR_SIZE; |
1132 | char max_addr[MAX_ADDR_SIZE]; | |
1133 | struct sockaddr *addr = (struct sockaddr *) max_addr; | |
1134 | ||
78446828 | 1135 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1136 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1137 | fd = SCM_FPORT_FDES (sock); |
439006bf | 1138 | if (getpeername (fd, addr, &addr_size) == -1) |
1bbd0b84 | 1139 | SCM_SYSERROR; |
aca23b65 | 1140 | return scm_addr_vector (addr, addr_size, FUNC_NAME); |
0f2d19dd | 1141 | } |
1bbd0b84 | 1142 | #undef FUNC_NAME |
0f2d19dd | 1143 | |
a1ec6916 | 1144 | SCM_DEFINE (scm_recv, "recv!", 2, 1, 0, |
1bbd0b84 | 1145 | (SCM sock, SCM buf, SCM flags), |
eefae538 GH |
1146 | "Receive data from a socket port.\n" |
1147 | "@var{sock} must already\n" | |
b380b885 MD |
1148 | "be bound to the address from which data is to be received.\n" |
1149 | "@var{buf} is a string into which\n" | |
eefae538 GH |
1150 | "the data will be written. The size of @var{buf} limits\n" |
1151 | "the amount of\n" | |
b380b885 | 1152 | "data which can be received: in the case of packet\n" |
eefae538 GH |
1153 | "protocols, if a packet larger than this limit is encountered\n" |
1154 | "then some data\n" | |
b380b885 MD |
1155 | "will be irrevocably lost.\n\n" |
1156 | "The optional @var{flags} argument is a value or\n" | |
1157 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" | |
eefae538 GH |
1158 | "The value returned is the number of bytes read from the\n" |
1159 | "socket.\n\n" | |
1160 | "Note that the data is read directly from the socket file\n" | |
1161 | "descriptor:\n" | |
09831f94 | 1162 | "any unread buffered port data is ignored.") |
1bbd0b84 | 1163 | #define FUNC_NAME s_scm_recv |
0f2d19dd | 1164 | { |
370312ae GH |
1165 | int rv; |
1166 | int fd; | |
1167 | int flg; | |
370312ae | 1168 | |
34d19ef6 HWN |
1169 | SCM_VALIDATE_OPFPORT (1, sock); |
1170 | SCM_VALIDATE_STRING (2, buf); | |
1171 | SCM_VALIDATE_INUM_DEF_COPY (3, flags,0, flg); | |
ee149d03 | 1172 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1173 | |
bfa974f0 | 1174 | SCM_SYSCALL (rv = recv (fd, SCM_STRING_CHARS (buf), SCM_STRING_LENGTH (buf), flg)); |
370312ae | 1175 | if (rv == -1) |
1bbd0b84 | 1176 | SCM_SYSERROR; |
370312ae | 1177 | |
93ccaef0 | 1178 | return SCM_I_MAKINUM (rv); |
370312ae | 1179 | } |
1bbd0b84 | 1180 | #undef FUNC_NAME |
370312ae | 1181 | |
a1ec6916 | 1182 | SCM_DEFINE (scm_send, "send", 2, 1, 0, |
1bbd0b84 | 1183 | (SCM sock, SCM message, SCM flags), |
eefae538 GH |
1184 | "Transmit the string @var{message} on a socket port @var{sock}.\n" |
1185 | "@var{sock} must already be bound to a destination address. The\n" | |
1186 | "value returned is the number of bytes transmitted --\n" | |
1187 | "it's possible for\n" | |
1188 | "this to be less than the length of @var{message}\n" | |
1189 | "if the socket is\n" | |
1190 | "set to be non-blocking. The optional @var{flags} argument\n" | |
1191 | "is a value or\n" | |
b380b885 | 1192 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1193 | "Note that the data is written directly to the socket\n" |
1194 | "file descriptor:\n" | |
b380b885 | 1195 | "any unflushed buffered port data is ignored.") |
1bbd0b84 | 1196 | #define FUNC_NAME s_scm_send |
370312ae GH |
1197 | { |
1198 | int rv; | |
1199 | int fd; | |
1200 | int flg; | |
1201 | ||
78446828 | 1202 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1203 | SCM_VALIDATE_OPFPORT (1, sock); |
a6d9e5ab | 1204 | SCM_VALIDATE_STRING (2, message); |
34d19ef6 | 1205 | SCM_VALIDATE_INUM_DEF_COPY (3, flags,0, flg); |
ee149d03 | 1206 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1207 | |
34f0f2b8 | 1208 | SCM_SYSCALL (rv = send (fd, SCM_STRING_CHARS (message), SCM_STRING_LENGTH (message), flg)); |
370312ae | 1209 | if (rv == -1) |
1bbd0b84 | 1210 | SCM_SYSERROR; |
93ccaef0 | 1211 | return SCM_I_MAKINUM (rv); |
370312ae | 1212 | } |
1bbd0b84 | 1213 | #undef FUNC_NAME |
370312ae | 1214 | |
a1ec6916 | 1215 | SCM_DEFINE (scm_recvfrom, "recvfrom!", 2, 3, 0, |
60d02d09 | 1216 | (SCM sock, SCM str, SCM flags, SCM start, SCM end), |
eefae538 | 1217 | "Return data from the socket port @var{sock} and also\n" |
1e6808ea | 1218 | "information about where the data was received from.\n" |
eefae538 | 1219 | "@var{sock} must already be bound to the address from which\n" |
1e6808ea MG |
1220 | "data is to be received. @code{str}, is a string into which the\n" |
1221 | "data will be written. The size of @var{str} limits the amount\n" | |
1222 | "of data which can be received: in the case of packet protocols,\n" | |
1223 | "if a packet larger than this limit is encountered then some\n" | |
eefae538 | 1224 | "data will be irrevocably lost.\n\n" |
1e6808ea | 1225 | "The optional @var{flags} argument is a value or bitwise OR of\n" |
eefae538 | 1226 | "@code{MSG_OOB}, @code{MSG_PEEK}, @code{MSG_DONTROUTE} etc.\n\n" |
1e6808ea MG |
1227 | "The value returned is a pair: the @emph{car} is the number of\n" |
1228 | "bytes read from the socket and the @emph{cdr} an address object\n" | |
eefae538 GH |
1229 | "in the same form as returned by @code{accept}. The address\n" |
1230 | "will given as @code{#f} if not available, as is usually the\n" | |
1231 | "case for stream sockets.\n\n" | |
1e6808ea | 1232 | "The @var{start} and @var{end} arguments specify a substring of\n" |
eefae538 | 1233 | "@var{str} to which the data should be written.\n\n" |
1e6808ea MG |
1234 | "Note that the data is read directly from the socket file\n" |
1235 | "descriptor: any unread buffered port data is ignored.") | |
1bbd0b84 | 1236 | #define FUNC_NAME s_scm_recvfrom |
370312ae GH |
1237 | { |
1238 | int rv; | |
1239 | int fd; | |
1240 | int flg; | |
60d02d09 GH |
1241 | char *buf; |
1242 | int offset; | |
1146b6cd | 1243 | int cend; |
370312ae | 1244 | SCM address; |
439006bf GH |
1245 | int addr_size = MAX_ADDR_SIZE; |
1246 | char max_addr[MAX_ADDR_SIZE]; | |
1247 | struct sockaddr *addr = (struct sockaddr *) max_addr; | |
370312ae | 1248 | |
34d19ef6 | 1249 | SCM_VALIDATE_OPFPORT (1, sock); |
60d02d09 GH |
1250 | fd = SCM_FPORT_FDES (sock); |
1251 | SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, str, buf, 4, start, offset, | |
1252 | 5, end, cend); | |
1146b6cd GH |
1253 | if (SCM_UNBNDP (flags)) |
1254 | flg = 0; | |
370312ae | 1255 | else |
60d02d09 | 1256 | SCM_VALIDATE_ULONG_COPY (3, flags, flg); |
370312ae | 1257 | |
97d0e20b GH |
1258 | /* recvfrom will not necessarily return an address. usually nothing |
1259 | is returned for stream sockets. */ | |
439006bf | 1260 | addr->sa_family = AF_UNSPEC; |
60d02d09 | 1261 | SCM_SYSCALL (rv = recvfrom (fd, buf + offset, |
1146b6cd | 1262 | cend - offset, flg, |
439006bf | 1263 | addr, &addr_size)); |
370312ae | 1264 | if (rv == -1) |
1bbd0b84 | 1265 | SCM_SYSERROR; |
eefae538 | 1266 | if (addr->sa_family != AF_UNSPEC) |
aca23b65 | 1267 | address = scm_addr_vector (addr, addr_size, FUNC_NAME); |
370312ae GH |
1268 | else |
1269 | address = SCM_BOOL_F; | |
1270 | ||
93ccaef0 | 1271 | return scm_cons (SCM_I_MAKINUM (rv), address); |
0f2d19dd | 1272 | } |
1bbd0b84 | 1273 | #undef FUNC_NAME |
0f2d19dd | 1274 | |
a1ec6916 | 1275 | SCM_DEFINE (scm_sendto, "sendto", 4, 0, 1, |
1bbd0b84 | 1276 | (SCM sock, SCM message, SCM fam, SCM address, SCM args_and_flags), |
eefae538 GH |
1277 | "Transmit the string @var{message} on the socket port\n" |
1278 | "@var{sock}. The\n" | |
1279 | "destination address is specified using the @var{fam},\n" | |
1280 | "@var{address} and\n" | |
1281 | "@var{args_and_flags} arguments, in a similar way to the\n" | |
1282 | "@code{connect} procedure. @var{args_and_flags} contains\n" | |
1283 | "the usual connection arguments optionally followed by\n" | |
1284 | "a flags argument, which is a value or\n" | |
b380b885 | 1285 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1286 | "The value returned is the number of bytes transmitted --\n" |
1287 | "it's possible for\n" | |
1288 | "this to be less than the length of @var{message} if the\n" | |
1289 | "socket is\n" | |
1290 | "set to be non-blocking.\n" | |
1291 | "Note that the data is written directly to the socket\n" | |
1292 | "file descriptor:\n" | |
b380b885 | 1293 | "any unflushed buffered port data is ignored.") |
1bbd0b84 | 1294 | #define FUNC_NAME s_scm_sendto |
370312ae GH |
1295 | { |
1296 | int rv; | |
1297 | int fd; | |
1298 | int flg; | |
1299 | struct sockaddr *soka; | |
439006bf | 1300 | int size; |
370312ae | 1301 | |
78446828 | 1302 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1303 | SCM_VALIDATE_FPORT (1, sock); |
a6d9e5ab | 1304 | SCM_VALIDATE_STRING (2, message); |
34d19ef6 | 1305 | SCM_VALIDATE_INUM (3, fam); |
ee149d03 | 1306 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1307 | soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args_and_flags, 4, |
1bbd0b84 | 1308 | FUNC_NAME, &size); |
370312ae GH |
1309 | if (SCM_NULLP (args_and_flags)) |
1310 | flg = 0; | |
1311 | else | |
1312 | { | |
34d19ef6 | 1313 | SCM_VALIDATE_CONS (5, args_and_flags); |
e4b265d8 | 1314 | flg = SCM_NUM2ULONG (5, SCM_CAR (args_and_flags)); |
370312ae | 1315 | } |
439006bf GH |
1316 | SCM_SYSCALL (rv = sendto (fd, SCM_STRING_CHARS (message), |
1317 | SCM_STRING_LENGTH (message), | |
ae2fa5bc | 1318 | flg, soka, size)); |
370312ae | 1319 | if (rv == -1) |
439006bf GH |
1320 | { |
1321 | int save_errno = errno; | |
1322 | free (soka); | |
1323 | errno = save_errno; | |
1324 | SCM_SYSERROR; | |
1325 | } | |
1326 | free (soka); | |
93ccaef0 | 1327 | return SCM_I_MAKINUM (rv); |
370312ae | 1328 | } |
1bbd0b84 | 1329 | #undef FUNC_NAME |
370312ae GH |
1330 | \f |
1331 | ||
1332 | ||
1333 | void | |
0f2d19dd | 1334 | scm_init_socket () |
0f2d19dd | 1335 | { |
370312ae GH |
1336 | /* protocol families. */ |
1337 | #ifdef AF_UNSPEC | |
93ccaef0 | 1338 | scm_c_define ("AF_UNSPEC", SCM_I_MAKINUM (AF_UNSPEC)); |
370312ae GH |
1339 | #endif |
1340 | #ifdef AF_UNIX | |
93ccaef0 | 1341 | scm_c_define ("AF_UNIX", SCM_I_MAKINUM (AF_UNIX)); |
370312ae GH |
1342 | #endif |
1343 | #ifdef AF_INET | |
93ccaef0 | 1344 | scm_c_define ("AF_INET", SCM_I_MAKINUM (AF_INET)); |
370312ae | 1345 | #endif |
3453619b | 1346 | #ifdef AF_INET6 |
93ccaef0 | 1347 | scm_c_define ("AF_INET6", SCM_I_MAKINUM (AF_INET6)); |
3453619b | 1348 | #endif |
370312ae GH |
1349 | |
1350 | #ifdef PF_UNSPEC | |
93ccaef0 | 1351 | scm_c_define ("PF_UNSPEC", SCM_I_MAKINUM (PF_UNSPEC)); |
370312ae GH |
1352 | #endif |
1353 | #ifdef PF_UNIX | |
93ccaef0 | 1354 | scm_c_define ("PF_UNIX", SCM_I_MAKINUM (PF_UNIX)); |
370312ae GH |
1355 | #endif |
1356 | #ifdef PF_INET | |
93ccaef0 | 1357 | scm_c_define ("PF_INET", SCM_I_MAKINUM (PF_INET)); |
370312ae | 1358 | #endif |
3453619b | 1359 | #ifdef PF_INET6 |
93ccaef0 | 1360 | scm_c_define ("PF_INET6", SCM_I_MAKINUM (PF_INET6)); |
3453619b | 1361 | #endif |
370312ae | 1362 | |
66c73b76 GH |
1363 | /* standard addresses. */ |
1364 | #ifdef INADDR_ANY | |
86d31dfe | 1365 | scm_c_define ("INADDR_ANY", scm_ulong2num (INADDR_ANY)); |
66c73b76 GH |
1366 | #endif |
1367 | #ifdef INADDR_BROADCAST | |
86d31dfe | 1368 | scm_c_define ("INADDR_BROADCAST", scm_ulong2num (INADDR_BROADCAST)); |
66c73b76 GH |
1369 | #endif |
1370 | #ifdef INADDR_NONE | |
86d31dfe | 1371 | scm_c_define ("INADDR_NONE", scm_ulong2num (INADDR_NONE)); |
66c73b76 GH |
1372 | #endif |
1373 | #ifdef INADDR_LOOPBACK | |
86d31dfe | 1374 | scm_c_define ("INADDR_LOOPBACK", scm_ulong2num (INADDR_LOOPBACK)); |
66c73b76 GH |
1375 | #endif |
1376 | ||
370312ae GH |
1377 | /* socket types. */ |
1378 | #ifdef SOCK_STREAM | |
93ccaef0 | 1379 | scm_c_define ("SOCK_STREAM", SCM_I_MAKINUM (SOCK_STREAM)); |
370312ae GH |
1380 | #endif |
1381 | #ifdef SOCK_DGRAM | |
93ccaef0 | 1382 | scm_c_define ("SOCK_DGRAM", SCM_I_MAKINUM (SOCK_DGRAM)); |
370312ae GH |
1383 | #endif |
1384 | #ifdef SOCK_RAW | |
93ccaef0 | 1385 | scm_c_define ("SOCK_RAW", SCM_I_MAKINUM (SOCK_RAW)); |
370312ae GH |
1386 | #endif |
1387 | ||
1388 | /* setsockopt level. */ | |
1389 | #ifdef SOL_SOCKET | |
93ccaef0 | 1390 | scm_c_define ("SOL_SOCKET", SCM_I_MAKINUM (SOL_SOCKET)); |
370312ae GH |
1391 | #endif |
1392 | #ifdef SOL_IP | |
93ccaef0 | 1393 | scm_c_define ("SOL_IP", SCM_I_MAKINUM (SOL_IP)); |
370312ae GH |
1394 | #endif |
1395 | #ifdef SOL_TCP | |
93ccaef0 | 1396 | scm_c_define ("SOL_TCP", SCM_I_MAKINUM (SOL_TCP)); |
370312ae GH |
1397 | #endif |
1398 | #ifdef SOL_UDP | |
93ccaef0 | 1399 | scm_c_define ("SOL_UDP", SCM_I_MAKINUM (SOL_UDP)); |
370312ae GH |
1400 | #endif |
1401 | ||
1402 | /* setsockopt names. */ | |
1403 | #ifdef SO_DEBUG | |
93ccaef0 | 1404 | scm_c_define ("SO_DEBUG", SCM_I_MAKINUM (SO_DEBUG)); |
370312ae GH |
1405 | #endif |
1406 | #ifdef SO_REUSEADDR | |
93ccaef0 | 1407 | scm_c_define ("SO_REUSEADDR", SCM_I_MAKINUM (SO_REUSEADDR)); |
370312ae GH |
1408 | #endif |
1409 | #ifdef SO_STYLE | |
93ccaef0 | 1410 | scm_c_define ("SO_STYLE", SCM_I_MAKINUM (SO_STYLE)); |
370312ae GH |
1411 | #endif |
1412 | #ifdef SO_TYPE | |
93ccaef0 | 1413 | scm_c_define ("SO_TYPE", SCM_I_MAKINUM (SO_TYPE)); |
370312ae GH |
1414 | #endif |
1415 | #ifdef SO_ERROR | |
93ccaef0 | 1416 | scm_c_define ("SO_ERROR", SCM_I_MAKINUM (SO_ERROR)); |
370312ae GH |
1417 | #endif |
1418 | #ifdef SO_DONTROUTE | |
93ccaef0 | 1419 | scm_c_define ("SO_DONTROUTE", SCM_I_MAKINUM (SO_DONTROUTE)); |
370312ae GH |
1420 | #endif |
1421 | #ifdef SO_BROADCAST | |
93ccaef0 | 1422 | scm_c_define ("SO_BROADCAST", SCM_I_MAKINUM (SO_BROADCAST)); |
370312ae GH |
1423 | #endif |
1424 | #ifdef SO_SNDBUF | |
93ccaef0 | 1425 | scm_c_define ("SO_SNDBUF", SCM_I_MAKINUM (SO_SNDBUF)); |
370312ae GH |
1426 | #endif |
1427 | #ifdef SO_RCVBUF | |
93ccaef0 | 1428 | scm_c_define ("SO_RCVBUF", SCM_I_MAKINUM (SO_RCVBUF)); |
370312ae GH |
1429 | #endif |
1430 | #ifdef SO_KEEPALIVE | |
93ccaef0 | 1431 | scm_c_define ("SO_KEEPALIVE", SCM_I_MAKINUM (SO_KEEPALIVE)); |
370312ae GH |
1432 | #endif |
1433 | #ifdef SO_OOBINLINE | |
93ccaef0 | 1434 | scm_c_define ("SO_OOBINLINE", SCM_I_MAKINUM (SO_OOBINLINE)); |
370312ae GH |
1435 | #endif |
1436 | #ifdef SO_NO_CHECK | |
93ccaef0 | 1437 | scm_c_define ("SO_NO_CHECK", SCM_I_MAKINUM (SO_NO_CHECK)); |
370312ae GH |
1438 | #endif |
1439 | #ifdef SO_PRIORITY | |
93ccaef0 | 1440 | scm_c_define ("SO_PRIORITY", SCM_I_MAKINUM (SO_PRIORITY)); |
370312ae GH |
1441 | #endif |
1442 | #ifdef SO_LINGER | |
93ccaef0 | 1443 | scm_c_define ("SO_LINGER", SCM_I_MAKINUM (SO_LINGER)); |
370312ae GH |
1444 | #endif |
1445 | ||
1446 | /* recv/send options. */ | |
1447 | #ifdef MSG_OOB | |
93ccaef0 | 1448 | scm_c_define ("MSG_OOB", SCM_I_MAKINUM (MSG_OOB)); |
370312ae GH |
1449 | #endif |
1450 | #ifdef MSG_PEEK | |
93ccaef0 | 1451 | scm_c_define ("MSG_PEEK", SCM_I_MAKINUM (MSG_PEEK)); |
370312ae GH |
1452 | #endif |
1453 | #ifdef MSG_DONTROUTE | |
93ccaef0 | 1454 | scm_c_define ("MSG_DONTROUTE", SCM_I_MAKINUM (MSG_DONTROUTE)); |
370312ae GH |
1455 | #endif |
1456 | ||
b4e15479 SJ |
1457 | #ifdef __MINGW32__ |
1458 | scm_i_init_socket_Win32 (); | |
1459 | #endif | |
1460 | ||
0f2d19dd | 1461 | scm_add_feature ("socket"); |
370312ae | 1462 | |
a0599745 | 1463 | #include "libguile/socket.x" |
0f2d19dd JB |
1464 | } |
1465 | ||
89e00824 ML |
1466 | |
1467 | /* | |
1468 | Local Variables: | |
1469 | c-file-style: "gnu" | |
1470 | End: | |
1471 | */ |