Commit | Line | Data |
---|---|---|
d21a1dc8 LC |
1 | /* Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, |
2 | * 2006, 2007, 2009, 2011 Free Software Foundation, Inc. | |
3 | * | |
73be1d9e | 4 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
5 | * modify it under the terms of the GNU Lesser General Public License |
6 | * as published by the Free Software Foundation; either version 3 of | |
7 | * the License, or (at your option) any later version. | |
86667910 | 8 | * |
53befeb7 NJ |
9 | * This library is distributed in the hope that it will be useful, but |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. | |
86667910 | 13 | * |
73be1d9e MV |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
17 | * 02110-1301 USA | |
73be1d9e | 18 | */ |
1bbd0b84 | 19 | |
1bbd0b84 | 20 | |
0f2d19dd JB |
21 | \f |
22 | ||
dbb605f5 | 23 | #ifdef HAVE_CONFIG_H |
eccde741 RB |
24 | # include <config.h> |
25 | #endif | |
26 | ||
e6e2e95a | 27 | #include <errno.h> |
69d49ac8 | 28 | #include <gmp.h> |
e6e2e95a | 29 | |
a0599745 | 30 | #include "libguile/_scm.h" |
2fa901a5 | 31 | #include "libguile/arrays.h" |
a0599745 MD |
32 | #include "libguile/feature.h" |
33 | #include "libguile/fports.h" | |
34 | #include "libguile/strings.h" | |
35 | #include "libguile/vectors.h" | |
7f9994d9 | 36 | #include "libguile/dynwind.h" |
587a3355 | 37 | #include "libguile/srfi-13.h" |
20e6290e | 38 | |
a0599745 MD |
39 | #include "libguile/validate.h" |
40 | #include "libguile/socket.h" | |
95b88819 | 41 | |
d21a1dc8 LC |
42 | #if SCM_ENABLE_DEPRECATED == 1 |
43 | # include "libguile/deprecation.h" | |
44 | #endif | |
45 | ||
b4e15479 SJ |
46 | #ifdef __MINGW32__ |
47 | #include "win32-socket.h" | |
e91f21dc | 48 | #include <netdb.h> |
b4e15479 SJ |
49 | #endif |
50 | ||
af68e5e5 SJ |
51 | #ifdef HAVE_STDINT_H |
52 | #include <stdint.h> | |
53 | #endif | |
95b88819 GH |
54 | #ifdef HAVE_STRING_H |
55 | #include <string.h> | |
56 | #endif | |
370312ae GH |
57 | #ifdef HAVE_UNISTD_H |
58 | #include <unistd.h> | |
59 | #endif | |
0f2d19dd | 60 | #include <sys/types.h> |
f87c105a | 61 | #ifdef HAVE_WINSOCK2_H |
82893676 MG |
62 | #include <winsock2.h> |
63 | #else | |
0f2d19dd | 64 | #include <sys/socket.h> |
1ba8c23a | 65 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
0f2d19dd | 66 | #include <sys/un.h> |
0e958795 | 67 | #endif |
0f2d19dd JB |
68 | #include <netinet/in.h> |
69 | #include <netdb.h> | |
70 | #include <arpa/inet.h> | |
82893676 | 71 | #endif |
0f2d19dd | 72 | |
97d0e20b GH |
73 | #if defined (HAVE_UNIX_DOMAIN_SOCKETS) && !defined (SUN_LEN) |
74 | #define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) \ | |
75 | + strlen ((ptr)->sun_path)) | |
76 | #endif | |
77 | ||
f43f3620 LC |
78 | /* The largest possible socket address. Wrapping it in a union guarantees |
79 | that the compiler will make it suitably aligned. */ | |
80 | typedef union | |
81 | { | |
82 | struct sockaddr sockaddr; | |
83 | struct sockaddr_in sockaddr_in; | |
84 | ||
85 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
86 | struct sockaddr_un sockaddr_un; | |
87 | #endif | |
88 | #ifdef HAVE_IPV6 | |
89 | struct sockaddr_in6 sockaddr_in6; | |
90 | #endif | |
91 | } scm_t_max_sockaddr; | |
92 | ||
93 | ||
94 | /* Maximum size of a socket address. */ | |
95 | #define MAX_ADDR_SIZE (sizeof (scm_t_max_sockaddr)) | |
96 | ||
97 | ||
0f2d19dd JB |
98 | \f |
99 | ||
a1ec6916 | 100 | SCM_DEFINE (scm_htons, "htons", 1, 0, 0, |
eefae538 GH |
101 | (SCM value), |
102 | "Convert a 16 bit quantity from host to network byte ordering.\n" | |
103 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
104 | "and returned as a new integer.") | |
1bbd0b84 | 105 | #define FUNC_NAME s_scm_htons |
5c11cc9d | 106 | { |
7cee5b31 | 107 | return scm_from_ushort (htons (scm_to_ushort (value))); |
5c11cc9d | 108 | } |
1bbd0b84 | 109 | #undef FUNC_NAME |
5c11cc9d | 110 | |
a1ec6916 | 111 | SCM_DEFINE (scm_ntohs, "ntohs", 1, 0, 0, |
eefae538 GH |
112 | (SCM value), |
113 | "Convert a 16 bit quantity from network to host byte ordering.\n" | |
114 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
115 | "and returned as a new integer.") | |
1bbd0b84 | 116 | #define FUNC_NAME s_scm_ntohs |
5c11cc9d | 117 | { |
7cee5b31 | 118 | return scm_from_ushort (ntohs (scm_to_ushort (value))); |
5c11cc9d | 119 | } |
1bbd0b84 | 120 | #undef FUNC_NAME |
5c11cc9d | 121 | |
a1ec6916 | 122 | SCM_DEFINE (scm_htonl, "htonl", 1, 0, 0, |
eefae538 GH |
123 | (SCM value), |
124 | "Convert a 32 bit quantity from host to network 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_htonl |
5c11cc9d | 128 | { |
8ab3d8a0 | 129 | return scm_from_ulong (htonl (scm_to_uint32 (value))); |
5c11cc9d | 130 | } |
1bbd0b84 | 131 | #undef FUNC_NAME |
5c11cc9d | 132 | |
a1ec6916 | 133 | SCM_DEFINE (scm_ntohl, "ntohl", 1, 0, 0, |
eefae538 GH |
134 | (SCM value), |
135 | "Convert a 32 bit quantity from network to host byte ordering.\n" | |
136 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
137 | "and returned as a new integer.") | |
1bbd0b84 | 138 | #define FUNC_NAME s_scm_ntohl |
5c11cc9d | 139 | { |
8ab3d8a0 | 140 | return scm_from_ulong (ntohl (scm_to_uint32 (value))); |
5c11cc9d | 141 | } |
1bbd0b84 | 142 | #undef FUNC_NAME |
5c11cc9d | 143 | |
66c73b76 GH |
144 | #ifdef HAVE_INET_NETOF |
145 | SCM_DEFINE (scm_inet_netof, "inet-netof", 1, 0, 0, | |
146 | (SCM address), | |
eefae538 GH |
147 | "Return the network number part of the given IPv4\n" |
148 | "Internet address. E.g.,\n\n" | |
66c73b76 GH |
149 | "@lisp\n" |
150 | "(inet-netof 2130706433) @result{} 127\n" | |
151 | "@end lisp") | |
152 | #define FUNC_NAME s_scm_inet_netof | |
153 | { | |
154 | struct in_addr addr; | |
155 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
b9bd8526 | 156 | return scm_from_ulong (inet_netof (addr)); |
66c73b76 GH |
157 | } |
158 | #undef FUNC_NAME | |
159 | #endif | |
160 | ||
161 | #ifdef HAVE_INET_LNAOF | |
162 | SCM_DEFINE (scm_lnaof, "inet-lnaof", 1, 0, 0, | |
163 | (SCM address), | |
164 | "Return the local-address-with-network part of the given\n" | |
eefae538 GH |
165 | "IPv4 Internet address, using the obsolete class A/B/C system.\n" |
166 | "E.g.,\n\n" | |
66c73b76 GH |
167 | "@lisp\n" |
168 | "(inet-lnaof 2130706433) @result{} 1\n" | |
169 | "@end lisp") | |
170 | #define FUNC_NAME s_scm_lnaof | |
171 | { | |
172 | struct in_addr addr; | |
173 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
b9bd8526 | 174 | return scm_from_ulong (inet_lnaof (addr)); |
66c73b76 GH |
175 | } |
176 | #undef FUNC_NAME | |
177 | #endif | |
178 | ||
179 | #ifdef HAVE_INET_MAKEADDR | |
180 | SCM_DEFINE (scm_inet_makeaddr, "inet-makeaddr", 2, 0, 0, | |
181 | (SCM net, SCM lna), | |
eefae538 | 182 | "Make an IPv4 Internet address by combining the network number\n" |
66c73b76 | 183 | "@var{net} with the local-address-within-network number\n" |
eefae538 | 184 | "@var{lna}. E.g.,\n\n" |
66c73b76 GH |
185 | "@lisp\n" |
186 | "(inet-makeaddr 127 1) @result{} 2130706433\n" | |
187 | "@end lisp") | |
188 | #define FUNC_NAME s_scm_inet_makeaddr | |
189 | { | |
190 | struct in_addr addr; | |
191 | unsigned long netnum; | |
192 | unsigned long lnanum; | |
193 | ||
194 | netnum = SCM_NUM2ULONG (1, net); | |
195 | lnanum = SCM_NUM2ULONG (2, lna); | |
196 | addr = inet_makeaddr (netnum, lnanum); | |
b9bd8526 | 197 | return scm_from_ulong (ntohl (addr.s_addr)); |
66c73b76 GH |
198 | } |
199 | #undef FUNC_NAME | |
200 | #endif | |
201 | ||
a57a0b1e | 202 | #ifdef HAVE_IPV6 |
eefae538 | 203 | |
66c73b76 GH |
204 | /* flip a 128 bit IPv6 address between host and network order. */ |
205 | #ifdef WORDS_BIGENDIAN | |
206 | #define FLIP_NET_HOST_128(addr) | |
207 | #else | |
208 | #define FLIP_NET_HOST_128(addr)\ | |
209 | {\ | |
210 | int i;\ | |
211 | \ | |
212 | for (i = 0; i < 8; i++)\ | |
213 | {\ | |
2de4f939 | 214 | scm_t_uint8 c = (addr)[i];\ |
66c73b76 GH |
215 | \ |
216 | (addr)[i] = (addr)[15 - i];\ | |
217 | (addr)[15 - i] = c;\ | |
218 | }\ | |
219 | } | |
220 | #endif | |
221 | ||
2de4f939 RB |
222 | #ifdef WORDS_BIGENDIAN |
223 | #define FLIPCPY_NET_HOST_128(dest, src) memcpy (dest, src, 16) | |
224 | #else | |
225 | #define FLIPCPY_NET_HOST_128(dest, src) \ | |
226 | { \ | |
227 | const scm_t_uint8 *tmp_srcp = (src) + 15; \ | |
228 | scm_t_uint8 *tmp_destp = (dest); \ | |
229 | \ | |
230 | do { \ | |
231 | *tmp_destp++ = *tmp_srcp--; \ | |
232 | } while (tmp_srcp != (src)); \ | |
233 | } | |
234 | #endif | |
235 | ||
236 | ||
7310ad0c | 237 | #if (SIZEOF_SCM_T_BITS * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
238 | #error "Assumption that scm_t_bits <= 128 bits has been violated." |
239 | #endif | |
240 | ||
7310ad0c | 241 | #if (SIZEOF_UNSIGNED_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
242 | #error "Assumption that unsigned long <= 128 bits has been violated." |
243 | #endif | |
244 | ||
7310ad0c | 245 | #if (SIZEOF_UNSIGNED_LONG_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
246 | #error "Assumption that unsigned long long <= 128 bits has been violated." |
247 | #endif | |
248 | ||
66c73b76 GH |
249 | /* convert a 128 bit IPv6 address in network order to a host ordered |
250 | SCM integer. */ | |
7cee5b31 MV |
251 | static SCM |
252 | scm_from_ipv6 (const scm_t_uint8 *src) | |
66c73b76 | 253 | { |
2b4d1547 KR |
254 | SCM result = scm_i_mkbig (); |
255 | mpz_import (SCM_I_BIG_MPZ (result), | |
256 | 1, /* chunk */ | |
257 | 1, /* big-endian chunk ordering */ | |
258 | 16, /* chunks are 16 bytes long */ | |
259 | 1, /* big-endian byte ordering */ | |
260 | 0, /* "nails" -- leading unused bits per chunk */ | |
261 | src); | |
262 | return scm_i_normbig (result); | |
263 | } | |
66c73b76 GH |
264 | |
265 | /* convert a host ordered SCM integer to a 128 bit IPv6 address in | |
266 | network order. */ | |
7cee5b31 MV |
267 | static void |
268 | scm_to_ipv6 (scm_t_uint8 dst[16], SCM src) | |
66c73b76 | 269 | { |
e11e83f3 | 270 | if (SCM_I_INUMP (src)) |
66c73b76 | 271 | { |
e11e83f3 | 272 | scm_t_signed_bits n = SCM_I_INUM (src); |
7cee5b31 MV |
273 | if (n < 0) |
274 | scm_out_of_range (NULL, src); | |
2de4f939 RB |
275 | #ifdef WORDS_BIGENDIAN |
276 | memset (dst, 0, 16 - sizeof (scm_t_signed_bits)); | |
277 | memcpy (dst + (16 - sizeof (scm_t_signed_bits)), | |
278 | &n, | |
279 | sizeof (scm_t_signed_bits)); | |
280 | #else | |
281 | memset (dst + sizeof (scm_t_signed_bits), | |
282 | 0, | |
283 | 16 - sizeof (scm_t_signed_bits)); | |
284 | /* FIXME: this pair of ops is kinda wasteful -- should rewrite as | |
285 | a single loop perhaps, similar to the handling of bignums. */ | |
286 | memcpy (dst, &n, sizeof (scm_t_signed_bits)); | |
287 | FLIP_NET_HOST_128 (dst); | |
288 | #endif | |
66c73b76 | 289 | } |
7cee5b31 | 290 | else if (SCM_BIGP (src)) |
66c73b76 | 291 | { |
2de4f939 | 292 | size_t count; |
7cee5b31 MV |
293 | |
294 | if ((mpz_sgn (SCM_I_BIG_MPZ (src)) < 0) | |
295 | || mpz_sizeinbase (SCM_I_BIG_MPZ (src), 2) > 128) | |
296 | scm_out_of_range (NULL, src); | |
297 | ||
66c73b76 | 298 | memset (dst, 0, 16); |
2de4f939 RB |
299 | mpz_export (dst, |
300 | &count, | |
301 | 1, /* big-endian chunk ordering */ | |
302 | 16, /* chunks are 16 bytes long */ | |
303 | 1, /* big-endian byte ordering */ | |
304 | 0, /* "nails" -- leading unused bits per chunk */ | |
305 | SCM_I_BIG_MPZ (src)); | |
306 | scm_remember_upto_here_1 (src); | |
66c73b76 | 307 | } |
2de4f939 | 308 | else |
1ff4da65 | 309 | scm_wrong_type_arg_msg ("scm_to_ipv6", 0, src, "integer"); |
2de4f939 RB |
310 | } |
311 | ||
e91f21dc | 312 | #endif /* HAVE_IPV6 */ |
66c73b76 | 313 | |
e91f21dc | 314 | \f |
66c73b76 | 315 | |
66c73b76 GH |
316 | SCM_DEFINE (scm_inet_ntop, "inet-ntop", 2, 0, 0, |
317 | (SCM family, SCM address), | |
eefae538 | 318 | "Convert a network address into a printable string.\n" |
66c73b76 GH |
319 | "Note that unlike the C version of this function,\n" |
320 | "the input is an integer with normal host byte ordering.\n" | |
eefae538 | 321 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" |
66c73b76 | 322 | "@lisp\n" |
dd85ce47 | 323 | "(inet-ntop AF_INET 2130706433) @result{} \"127.0.0.1\"\n" |
187a4390 NJ |
324 | "(inet-ntop AF_INET6 (- (expt 2 128) 1))\n" |
325 | " @result{} \"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\"\n" | |
66c73b76 GH |
326 | "@end lisp") |
327 | #define FUNC_NAME s_scm_inet_ntop | |
328 | { | |
329 | int af; | |
330 | #ifdef INET6_ADDRSTRLEN | |
331 | char dst[INET6_ADDRSTRLEN]; | |
332 | #else | |
333 | char dst[46]; | |
334 | #endif | |
7a5fb796 | 335 | const char *result; |
66c73b76 | 336 | |
7cee5b31 | 337 | af = scm_to_int (family); |
e91f21dc LC |
338 | SCM_ASSERT_RANGE (1, family, |
339 | af == AF_INET | |
340 | #ifdef HAVE_IPV6 | |
341 | || af == AF_INET6 | |
342 | #endif | |
343 | ); | |
66c73b76 | 344 | if (af == AF_INET) |
7a5fb796 LC |
345 | { |
346 | scm_t_uint32 addr4; | |
347 | ||
348 | addr4 = htonl (SCM_NUM2ULONG (2, address)); | |
349 | result = inet_ntop (af, &addr4, dst, sizeof (dst)); | |
350 | } | |
e91f21dc LC |
351 | #ifdef HAVE_IPV6 |
352 | else if (af == AF_INET6) | |
7a5fb796 LC |
353 | { |
354 | char addr6[16]; | |
355 | ||
356 | scm_to_ipv6 ((scm_t_uint8 *) addr6, address); | |
357 | result = inet_ntop (af, &addr6, dst, sizeof (dst)); | |
358 | } | |
e91f21dc LC |
359 | #endif |
360 | else | |
361 | SCM_MISC_ERROR ("unsupported address family", family); | |
7a5fb796 LC |
362 | |
363 | if (result == NULL) | |
66c73b76 | 364 | SCM_SYSERROR; |
7a5fb796 | 365 | |
cc95e00a | 366 | return scm_from_locale_string (dst); |
66c73b76 GH |
367 | } |
368 | #undef FUNC_NAME | |
66c73b76 | 369 | |
e91f21dc LC |
370 | SCM_DEFINE (scm_inet_pton, "inet-pton", 2, 0, 0, |
371 | (SCM family, SCM address), | |
372 | "Convert a string containing a printable network address to\n" | |
373 | "an integer address. Note that unlike the C version of this\n" | |
374 | "function,\n" | |
375 | "the result is an integer with normal host byte ordering.\n" | |
376 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" | |
377 | "@lisp\n" | |
378 | "(inet-pton AF_INET \"127.0.0.1\") @result{} 2130706433\n" | |
379 | "(inet-pton AF_INET6 \"::1\") @result{} 1\n" | |
380 | "@end lisp") | |
381 | #define FUNC_NAME s_scm_inet_pton | |
382 | { | |
383 | int af; | |
384 | char *src; | |
385 | scm_t_uint32 dst[4]; | |
386 | int rv, eno; | |
387 | ||
388 | af = scm_to_int (family); | |
389 | SCM_ASSERT_RANGE (1, family, | |
390 | af == AF_INET | |
391 | #ifdef HAVE_IPV6 | |
392 | || af == AF_INET6 | |
393 | #endif | |
394 | ); | |
eefae538 | 395 | |
e91f21dc LC |
396 | src = scm_to_locale_string (address); |
397 | rv = inet_pton (af, src, dst); | |
398 | eno = errno; | |
399 | free (src); | |
400 | errno = eno; | |
401 | ||
402 | if (rv == -1) | |
403 | SCM_SYSERROR; | |
404 | else if (rv == 0) | |
405 | SCM_MISC_ERROR ("Bad address", SCM_EOL); | |
406 | if (af == AF_INET) | |
407 | return scm_from_ulong (ntohl (*dst)); | |
408 | #ifdef HAVE_IPV6 | |
409 | else if (af == AF_INET6) | |
410 | return scm_from_ipv6 ((scm_t_uint8 *) dst); | |
411 | #endif | |
412 | else | |
413 | SCM_MISC_ERROR ("unsupported address family", family); | |
414 | } | |
415 | #undef FUNC_NAME | |
416 | ||
417 | \f | |
bc45012d | 418 | SCM_SYMBOL (sym_socket, "socket"); |
82ddea4e | 419 | |
439006bf | 420 | #define SCM_SOCK_FD_TO_PORT(fd) scm_fdes_to_port (fd, "r+0", sym_socket) |
1bbd0b84 | 421 | |
a1ec6916 | 422 | SCM_DEFINE (scm_socket, "socket", 3, 0, 0, |
1bbd0b84 | 423 | (SCM family, SCM style, SCM proto), |
1e6808ea | 424 | "Return a new socket port of the type specified by @var{family},\n" |
eefae538 | 425 | "@var{style} and @var{proto}. All three parameters are\n" |
3453619b GH |
426 | "integers. Supported values for @var{family} are\n" |
427 | "@code{AF_UNIX}, @code{AF_INET} and @code{AF_INET6}.\n" | |
428 | "Typical values for @var{style} are @code{SOCK_STREAM},\n" | |
eefae538 GH |
429 | "@code{SOCK_DGRAM} and @code{SOCK_RAW}.\n\n" |
430 | "@var{proto} can be obtained from a protocol name using\n" | |
1e6808ea | 431 | "@code{getprotobyname}. A value of zero specifies the default\n" |
eefae538 | 432 | "protocol, which is usually right.\n\n" |
1e6808ea MG |
433 | "A single socket port cannot by used for communication until it\n" |
434 | "has been connected to another socket.") | |
1bbd0b84 | 435 | #define FUNC_NAME s_scm_socket |
0f2d19dd | 436 | { |
370312ae | 437 | int fd; |
370312ae | 438 | |
7cee5b31 MV |
439 | fd = socket (scm_to_int (family), |
440 | scm_to_int (style), | |
441 | scm_to_int (proto)); | |
439006bf GH |
442 | if (fd == -1) |
443 | SCM_SYSERROR; | |
444 | return SCM_SOCK_FD_TO_PORT (fd); | |
0f2d19dd | 445 | } |
1bbd0b84 | 446 | #undef FUNC_NAME |
0f2d19dd | 447 | |
0e958795 | 448 | #ifdef HAVE_SOCKETPAIR |
a1ec6916 | 449 | SCM_DEFINE (scm_socketpair, "socketpair", 3, 0, 0, |
1bbd0b84 | 450 | (SCM family, SCM style, SCM proto), |
1e6808ea | 451 | "Return a pair of connected (but unnamed) socket ports of the\n" |
eefae538 | 452 | "type specified by @var{family}, @var{style} and @var{proto}.\n" |
1e6808ea MG |
453 | "Many systems support only socket pairs of the @code{AF_UNIX}\n" |
454 | "family. Zero is likely to be the only meaningful value for\n" | |
eefae538 | 455 | "@var{proto}.") |
1bbd0b84 | 456 | #define FUNC_NAME s_scm_socketpair |
0f2d19dd | 457 | { |
370312ae GH |
458 | int fam; |
459 | int fd[2]; | |
370312ae | 460 | |
7cee5b31 | 461 | fam = scm_to_int (family); |
370312ae | 462 | |
7cee5b31 | 463 | if (socketpair (fam, scm_to_int (style), scm_to_int (proto), fd) == -1) |
1bbd0b84 | 464 | SCM_SYSERROR; |
370312ae | 465 | |
439006bf | 466 | return scm_cons (SCM_SOCK_FD_TO_PORT (fd[0]), SCM_SOCK_FD_TO_PORT (fd[1])); |
0f2d19dd | 467 | } |
1bbd0b84 | 468 | #undef FUNC_NAME |
0e958795 | 469 | #endif |
0f2d19dd | 470 | |
f43f3620 LC |
471 | /* Possible results for `getsockopt ()'. Wrapping it into a union guarantees |
472 | suitable alignment. */ | |
473 | typedef union | |
474 | { | |
475 | #ifdef HAVE_STRUCT_LINGER | |
476 | struct linger linger; | |
477 | #endif | |
478 | size_t size; | |
479 | int integer; | |
480 | } scm_t_getsockopt_result; | |
481 | ||
a1ec6916 | 482 | SCM_DEFINE (scm_getsockopt, "getsockopt", 3, 0, 0, |
1bbd0b84 | 483 | (SCM sock, SCM level, SCM optname), |
72e3dae1 KR |
484 | "Return an option value from socket port @var{sock}.\n" |
485 | "\n" | |
486 | "@var{level} is an integer specifying a protocol layer, either\n" | |
487 | "@code{SOL_SOCKET} for socket level options, or a protocol\n" | |
488 | "number from the @code{IPPROTO} constants or @code{getprotoent}\n" | |
489 | "(@pxref{Network Databases}).\n" | |
490 | "\n" | |
491 | "@defvar SOL_SOCKET\n" | |
492 | "@defvarx IPPROTO_IP\n" | |
493 | "@defvarx IPPROTO_TCP\n" | |
494 | "@defvarx IPPROTO_UDP\n" | |
495 | "@end defvar\n" | |
496 | "\n" | |
497 | "@var{optname} is an integer specifying an option within the\n" | |
498 | "protocol layer.\n" | |
499 | "\n" | |
500 | "For @code{SOL_SOCKET} level the following @var{optname}s are\n" | |
501 | "defined (when provided by the system). For their meaning see\n" | |
502 | "@ref{Socket-Level Options,,, libc, The GNU C Library Reference\n" | |
503 | "Manual}, or @command{man 7 socket}.\n" | |
504 | "\n" | |
505 | "@defvar SO_DEBUG\n" | |
506 | "@defvarx SO_REUSEADDR\n" | |
507 | "@defvarx SO_STYLE\n" | |
508 | "@defvarx SO_TYPE\n" | |
509 | "@defvarx SO_ERROR\n" | |
510 | "@defvarx SO_DONTROUTE\n" | |
511 | "@defvarx SO_BROADCAST\n" | |
512 | "@defvarx SO_SNDBUF\n" | |
513 | "@defvarx SO_RCVBUF\n" | |
514 | "@defvarx SO_KEEPALIVE\n" | |
515 | "@defvarx SO_OOBINLINE\n" | |
516 | "@defvarx SO_NO_CHECK\n" | |
517 | "@defvarx SO_PRIORITY\n" | |
518 | "The value returned is an integer.\n" | |
519 | "@end defvar\n" | |
520 | "\n" | |
521 | "@defvar SO_LINGER\n" | |
b7e64f8b BT |
522 | "The value returned is a pair of integers\n" |
523 | "@code{(@var{enable} . @var{timeout})}. On old systems without\n" | |
72e3dae1 | 524 | "timeout support (ie.@: without @code{struct linger}), only\n" |
b7e64f8b | 525 | "@var{enable} has an effect but the value in Guile is always a\n" |
72e3dae1 KR |
526 | "pair.\n" |
527 | "@end defvar") | |
1bbd0b84 | 528 | #define FUNC_NAME s_scm_getsockopt |
0f2d19dd | 529 | { |
370312ae | 530 | int fd; |
439006bf | 531 | /* size of optval is the largest supported option. */ |
f43f3620 LC |
532 | scm_t_getsockopt_result optval; |
533 | socklen_t optlen = sizeof (optval); | |
370312ae GH |
534 | int ilevel; |
535 | int ioptname; | |
0f2d19dd | 536 | |
78446828 | 537 | sock = SCM_COERCE_OUTPORT (sock); |
2cf6d014 | 538 | SCM_VALIDATE_OPFPORT (1, sock); |
7cee5b31 MV |
539 | ilevel = scm_to_int (level); |
540 | ioptname = scm_to_int (optname); | |
0f2d19dd | 541 | |
ee149d03 | 542 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 543 | if (getsockopt (fd, ilevel, ioptname, (void *) &optval, &optlen) == -1) |
1bbd0b84 | 544 | SCM_SYSERROR; |
1cc91f1b | 545 | |
439006bf | 546 | if (ilevel == SOL_SOCKET) |
0f2d19dd | 547 | { |
439006bf GH |
548 | #ifdef SO_LINGER |
549 | if (ioptname == SO_LINGER) | |
550 | { | |
370312ae | 551 | #ifdef HAVE_STRUCT_LINGER |
f43f3620 | 552 | struct linger *ling = (struct linger *) &optval; |
439006bf | 553 | |
b9bd8526 MV |
554 | return scm_cons (scm_from_long (ling->l_onoff), |
555 | scm_from_long (ling->l_linger)); | |
370312ae | 556 | #else |
f43f3620 | 557 | return scm_cons (scm_from_long (*(int *) &optval), |
7cee5b31 | 558 | scm_from_int (0)); |
0f2d19dd | 559 | #endif |
439006bf GH |
560 | } |
561 | else | |
370312ae | 562 | #endif |
439006bf | 563 | if (0 |
370312ae | 564 | #ifdef SO_SNDBUF |
439006bf | 565 | || ioptname == SO_SNDBUF |
370312ae GH |
566 | #endif |
567 | #ifdef SO_RCVBUF | |
439006bf | 568 | || ioptname == SO_RCVBUF |
370312ae | 569 | #endif |
439006bf GH |
570 | ) |
571 | { | |
f43f3620 | 572 | return scm_from_size_t (*(size_t *) &optval); |
439006bf GH |
573 | } |
574 | } | |
f43f3620 | 575 | return scm_from_int (*(int *) &optval); |
0f2d19dd | 576 | } |
1bbd0b84 | 577 | #undef FUNC_NAME |
0f2d19dd | 578 | |
a1ec6916 | 579 | SCM_DEFINE (scm_setsockopt, "setsockopt", 4, 0, 0, |
1bbd0b84 | 580 | (SCM sock, SCM level, SCM optname, SCM value), |
72e3dae1 KR |
581 | "Set an option on socket port @var{sock}. The return value is\n" |
582 | "unspecified.\n" | |
583 | "\n" | |
584 | "@var{level} is an integer specifying a protocol layer, either\n" | |
585 | "@code{SOL_SOCKET} for socket level options, or a protocol\n" | |
586 | "number from the @code{IPPROTO} constants or @code{getprotoent}\n" | |
587 | "(@pxref{Network Databases}).\n" | |
588 | "\n" | |
589 | "@defvar SOL_SOCKET\n" | |
590 | "@defvarx IPPROTO_IP\n" | |
591 | "@defvarx IPPROTO_TCP\n" | |
592 | "@defvarx IPPROTO_UDP\n" | |
593 | "@end defvar\n" | |
594 | "\n" | |
595 | "@var{optname} is an integer specifying an option within the\n" | |
596 | "protocol layer.\n" | |
597 | "\n" | |
598 | "For @code{SOL_SOCKET} level the following @var{optname}s are\n" | |
599 | "defined (when provided by the system). For their meaning see\n" | |
600 | "@ref{Socket-Level Options,,, libc, The GNU C Library Reference\n" | |
601 | "Manual}, or @command{man 7 socket}.\n" | |
602 | "\n" | |
603 | "@defvar SO_DEBUG\n" | |
604 | "@defvarx SO_REUSEADDR\n" | |
605 | "@defvarx SO_STYLE\n" | |
606 | "@defvarx SO_TYPE\n" | |
607 | "@defvarx SO_ERROR\n" | |
608 | "@defvarx SO_DONTROUTE\n" | |
609 | "@defvarx SO_BROADCAST\n" | |
610 | "@defvarx SO_SNDBUF\n" | |
611 | "@defvarx SO_RCVBUF\n" | |
612 | "@defvarx SO_KEEPALIVE\n" | |
613 | "@defvarx SO_OOBINLINE\n" | |
614 | "@defvarx SO_NO_CHECK\n" | |
615 | "@defvarx SO_PRIORITY\n" | |
616 | "@var{value} is an integer.\n" | |
617 | "@end defvar\n" | |
618 | "\n" | |
619 | "@defvar SO_LINGER\n" | |
620 | "@var{value} is a pair of integers @code{(@var{ENABLE}\n" | |
621 | ". @var{TIMEOUT})}. On old systems without timeout support\n" | |
622 | "(ie.@: without @code{struct linger}), only @var{ENABLE} has an\n" | |
623 | "effect but the value in Guile is always a pair.\n" | |
624 | "@end defvar\n" | |
625 | "\n" | |
626 | "@c Note that we refer only to ``man ip'' here. On GNU/Linux it's\n" | |
627 | "@c ``man 7 ip'' but on NetBSD it's ``man 4 ip''.\n" | |
628 | "@c \n" | |
629 | "For IP level (@code{IPPROTO_IP}) the following @var{optname}s\n" | |
630 | "are defined (when provided by the system). See @command{man\n" | |
631 | "ip} for what they mean.\n" | |
632 | "\n" | |
511246a1 TCM |
633 | "@defvar IP_MULTICAST_IF\n" |
634 | "This sets the source interface used by multicast traffic.\n" | |
635 | "@end defvar\n" | |
636 | "\n" | |
637 | "@defvar IP_MULTICAST_TTL\n" | |
638 | "This sets the default TTL for multicast traffic. This defaults \n" | |
639 | "to 1 and should be increased to allow traffic to pass beyond the\n" | |
640 | "local network.\n" | |
641 | "@end defvar\n" | |
642 | "\n" | |
72e3dae1 KR |
643 | "@defvar IP_ADD_MEMBERSHIP\n" |
644 | "@defvarx IP_DROP_MEMBERSHIP\n" | |
645 | "These can be used only with @code{setsockopt}, not\n" | |
646 | "@code{getsockopt}. @var{value} is a pair\n" | |
647 | "@code{(@var{MULTIADDR} . @var{INTERFACEADDR})} of IPv4\n" | |
648 | "addresses (@pxref{Network Address Conversion}).\n" | |
649 | "@var{MULTIADDR} is a multicast address to be added to or\n" | |
650 | "dropped from the interface @var{INTERFACEADDR}.\n" | |
651 | "@var{INTERFACEADDR} can be @code{INADDR_ANY} to have the system\n" | |
652 | "select the interface. @var{INTERFACEADDR} can also be an\n" | |
f1b7209b KR |
653 | "interface index number, on systems supporting that.\n" |
654 | "@end defvar") | |
1bbd0b84 | 655 | #define FUNC_NAME s_scm_setsockopt |
0f2d19dd | 656 | { |
370312ae | 657 | int fd; |
1c80707c MV |
658 | |
659 | int opt_int; | |
370312ae | 660 | #ifdef HAVE_STRUCT_LINGER |
1c80707c | 661 | struct linger opt_linger; |
370312ae | 662 | #endif |
ecc9f40f | 663 | |
56a3dcd4 | 664 | #ifdef HAVE_STRUCT_IP_MREQ |
1c80707c | 665 | struct ip_mreq opt_mreq; |
ecc9f40f | 666 | #endif |
1c80707c MV |
667 | |
668 | const void *optval = NULL; | |
669 | socklen_t optlen = 0; | |
670 | ||
370312ae | 671 | int ilevel, ioptname; |
439006bf | 672 | |
78446828 | 673 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf GH |
674 | |
675 | SCM_VALIDATE_OPFPORT (1, sock); | |
7cee5b31 MV |
676 | ilevel = scm_to_int (level); |
677 | ioptname = scm_to_int (optname); | |
439006bf | 678 | |
ee149d03 | 679 | fd = SCM_FPORT_FDES (sock); |
1c80707c | 680 | |
439006bf | 681 | if (ilevel == SOL_SOCKET) |
370312ae | 682 | { |
439006bf GH |
683 | #ifdef SO_LINGER |
684 | if (ioptname == SO_LINGER) | |
685 | { | |
370312ae | 686 | #ifdef HAVE_STRUCT_LINGER |
d2e53ed6 | 687 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c MV |
688 | opt_linger.l_onoff = scm_to_int (SCM_CAR (value)); |
689 | opt_linger.l_linger = scm_to_int (SCM_CDR (value)); | |
690 | optlen = sizeof (struct linger); | |
691 | optval = &opt_linger; | |
370312ae | 692 | #else |
d2e53ed6 | 693 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c | 694 | opt_int = scm_to_int (SCM_CAR (value)); |
439006bf | 695 | /* timeout is ignored, but may as well validate it. */ |
1c80707c MV |
696 | scm_to_int (SCM_CDR (value)); |
697 | optlen = sizeof (int); | |
698 | optval = &opt_int; | |
439006bf GH |
699 | #endif |
700 | } | |
701 | else | |
702 | #endif | |
703 | if (0 | |
370312ae | 704 | #ifdef SO_SNDBUF |
439006bf | 705 | || ioptname == SO_SNDBUF |
370312ae GH |
706 | #endif |
707 | #ifdef SO_RCVBUF | |
439006bf | 708 | || ioptname == SO_RCVBUF |
370312ae | 709 | #endif |
439006bf GH |
710 | ) |
711 | { | |
1c80707c MV |
712 | opt_int = scm_to_int (value); |
713 | optlen = sizeof (size_t); | |
714 | optval = &opt_int; | |
439006bf GH |
715 | } |
716 | } | |
1c80707c | 717 | |
56a3dcd4 | 718 | #ifdef HAVE_STRUCT_IP_MREQ |
1c80707c MV |
719 | if (ilevel == IPPROTO_IP && |
720 | (ioptname == IP_ADD_MEMBERSHIP || ioptname == IP_DROP_MEMBERSHIP)) | |
0f2d19dd | 721 | { |
1c80707c MV |
722 | /* Fourth argument must be a pair of addresses. */ |
723 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); | |
724 | opt_mreq.imr_multiaddr.s_addr = htonl (scm_to_ulong (SCM_CAR (value))); | |
725 | opt_mreq.imr_interface.s_addr = htonl (scm_to_ulong (SCM_CDR (value))); | |
726 | optlen = sizeof (opt_mreq); | |
727 | optval = &opt_mreq; | |
728 | } | |
ecc9f40f | 729 | #endif |
439006bf | 730 | |
1c80707c MV |
731 | if (optval == NULL) |
732 | { | |
733 | /* Most options take an int. */ | |
734 | opt_int = scm_to_int (value); | |
735 | optlen = sizeof (int); | |
736 | optval = &opt_int; | |
0f2d19dd | 737 | } |
1c80707c MV |
738 | |
739 | if (setsockopt (fd, ilevel, ioptname, optval, optlen) == -1) | |
1bbd0b84 | 740 | SCM_SYSERROR; |
370312ae | 741 | return SCM_UNSPECIFIED; |
0f2d19dd | 742 | } |
1bbd0b84 | 743 | #undef FUNC_NAME |
0f2d19dd | 744 | |
a1ec6916 | 745 | SCM_DEFINE (scm_shutdown, "shutdown", 2, 0, 0, |
1bbd0b84 | 746 | (SCM sock, SCM how), |
b380b885 | 747 | "Sockets can be closed simply by using @code{close-port}. The\n" |
bb2c02f2 | 748 | "@code{shutdown} procedure allows reception or transmission on a\n" |
b380b885 MD |
749 | "connection to be shut down individually, according to the parameter\n" |
750 | "@var{how}:\n\n" | |
751 | "@table @asis\n" | |
752 | "@item 0\n" | |
753 | "Stop receiving data for this socket. If further data arrives, reject it.\n" | |
754 | "@item 1\n" | |
755 | "Stop trying to transmit data from this socket. Discard any\n" | |
756 | "data waiting to be sent. Stop looking for acknowledgement of\n" | |
757 | "data already sent; don't retransmit it if it is lost.\n" | |
758 | "@item 2\n" | |
759 | "Stop both reception and transmission.\n" | |
760 | "@end table\n\n" | |
761 | "The return value is unspecified.") | |
1bbd0b84 | 762 | #define FUNC_NAME s_scm_shutdown |
0f2d19dd | 763 | { |
370312ae | 764 | int fd; |
78446828 | 765 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 766 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 767 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 768 | if (shutdown (fd, scm_to_signed_integer (how, 0, 2)) == -1) |
1bbd0b84 | 769 | SCM_SYSERROR; |
370312ae GH |
770 | return SCM_UNSPECIFIED; |
771 | } | |
1bbd0b84 | 772 | #undef FUNC_NAME |
0f2d19dd | 773 | |
370312ae GH |
774 | /* convert fam/address/args into a sockaddr of the appropriate type. |
775 | args is modified by removing the arguments actually used. | |
776 | which_arg and proc are used when reporting errors: | |
777 | which_arg is the position of address in the original argument list. | |
778 | proc is the name of the original procedure. | |
779 | size returns the size of the structure allocated. */ | |
780 | ||
bc732342 | 781 | static struct sockaddr * |
439006bf | 782 | scm_fill_sockaddr (int fam, SCM address, SCM *args, int which_arg, |
9c0129ac | 783 | const char *proc, size_t *size) |
3453619b | 784 | #define FUNC_NAME proc |
370312ae GH |
785 | { |
786 | switch (fam) | |
0f2d19dd | 787 | { |
370312ae GH |
788 | case AF_INET: |
789 | { | |
370312ae | 790 | struct sockaddr_in *soka; |
3453619b GH |
791 | unsigned long addr; |
792 | int port; | |
370312ae | 793 | |
3453619b GH |
794 | SCM_VALIDATE_ULONG_COPY (which_arg, address, addr); |
795 | SCM_VALIDATE_CONS (which_arg + 1, *args); | |
7cee5b31 | 796 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 797 | *args = SCM_CDR (*args); |
67329a9e | 798 | soka = (struct sockaddr_in *) scm_malloc (sizeof (struct sockaddr_in)); |
333a81cc | 799 | memset (soka, '\0', sizeof (struct sockaddr_in)); |
9c0129ac | 800 | |
482d311b | 801 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
3453619b GH |
802 | soka->sin_len = sizeof (struct sockaddr_in); |
803 | #endif | |
370312ae | 804 | soka->sin_family = AF_INET; |
3453619b GH |
805 | soka->sin_addr.s_addr = htonl (addr); |
806 | soka->sin_port = htons (port); | |
370312ae GH |
807 | *size = sizeof (struct sockaddr_in); |
808 | return (struct sockaddr *) soka; | |
809 | } | |
a57a0b1e | 810 | #ifdef HAVE_IPV6 |
3453619b GH |
811 | case AF_INET6: |
812 | { | |
813 | /* see RFC2553. */ | |
814 | int port; | |
815 | struct sockaddr_in6 *soka; | |
816 | unsigned long flowinfo = 0; | |
817 | unsigned long scope_id = 0; | |
818 | ||
3453619b | 819 | SCM_VALIDATE_CONS (which_arg + 1, *args); |
7cee5b31 | 820 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 821 | *args = SCM_CDR (*args); |
d2e53ed6 | 822 | if (scm_is_pair (*args)) |
3453619b GH |
823 | { |
824 | SCM_VALIDATE_ULONG_COPY (which_arg + 2, SCM_CAR (*args), flowinfo); | |
825 | *args = SCM_CDR (*args); | |
d2e53ed6 | 826 | if (scm_is_pair (*args)) |
3453619b GH |
827 | { |
828 | SCM_VALIDATE_ULONG_COPY (which_arg + 3, SCM_CAR (*args), | |
829 | scope_id); | |
830 | *args = SCM_CDR (*args); | |
831 | } | |
832 | } | |
67329a9e | 833 | soka = (struct sockaddr_in6 *) scm_malloc (sizeof (struct sockaddr_in6)); |
9c0129ac | 834 | |
56a3dcd4 | 835 | #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN |
3453619b GH |
836 | soka->sin6_len = sizeof (struct sockaddr_in6); |
837 | #endif | |
838 | soka->sin6_family = AF_INET6; | |
7cee5b31 | 839 | scm_to_ipv6 (soka->sin6_addr.s6_addr, address); |
5a525b84 | 840 | soka->sin6_port = htons (port); |
3453619b | 841 | soka->sin6_flowinfo = flowinfo; |
5a525b84 | 842 | #ifdef HAVE_SIN6_SCOPE_ID |
3453619b | 843 | soka->sin6_scope_id = scope_id; |
5a525b84 | 844 | #endif |
3453619b GH |
845 | *size = sizeof (struct sockaddr_in6); |
846 | return (struct sockaddr *) soka; | |
847 | } | |
848 | #endif | |
1ba8c23a | 849 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
370312ae GH |
850 | case AF_UNIX: |
851 | { | |
852 | struct sockaddr_un *soka; | |
439006bf | 853 | int addr_size; |
7f9994d9 MV |
854 | char *c_address; |
855 | ||
661ae7ab | 856 | scm_dynwind_begin (0); |
7f9994d9 MV |
857 | |
858 | c_address = scm_to_locale_string (address); | |
661ae7ab | 859 | scm_dynwind_free (c_address); |
370312ae | 860 | |
439006bf GH |
861 | /* the static buffer size in sockaddr_un seems to be arbitrary |
862 | and not necessarily a hard limit. e.g., the glibc manual | |
863 | suggests it may be possible to declare it size 0. let's | |
864 | ignore it. if the O/S doesn't like the size it will cause | |
865 | connect/bind etc., to fail. sun_path is always the last | |
866 | member of the structure. */ | |
867 | addr_size = sizeof (struct sockaddr_un) | |
7f9994d9 | 868 | + max (0, strlen (c_address) + 1 - (sizeof soka->sun_path)); |
67329a9e | 869 | soka = (struct sockaddr_un *) scm_malloc (addr_size); |
439006bf GH |
870 | memset (soka, 0, addr_size); /* for sun_len: see sin_len above. */ |
871 | soka->sun_family = AF_UNIX; | |
7f9994d9 | 872 | strcpy (soka->sun_path, c_address); |
439006bf | 873 | *size = SUN_LEN (soka); |
7f9994d9 | 874 | |
661ae7ab | 875 | scm_dynwind_end (); |
370312ae GH |
876 | return (struct sockaddr *) soka; |
877 | } | |
0e958795 | 878 | #endif |
370312ae | 879 | default: |
e11e83f3 | 880 | scm_out_of_range (proc, scm_from_int (fam)); |
0f2d19dd | 881 | } |
0f2d19dd | 882 | } |
3453619b | 883 | #undef FUNC_NAME |
9c0129ac KR |
884 | |
885 | SCM_DEFINE (scm_connect, "connect", 2, 1, 1, | |
886 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 887 | "Initiate a connection from a socket using a specified address\n" |
3453619b GH |
888 | "family to the address\n" |
889 | "specified by @var{address} and possibly @var{args}.\n" | |
890 | "The format required for @var{address}\n" | |
891 | "and @var{args} depends on the family of the socket.\n\n" | |
b380b885 | 892 | "For a socket of family @code{AF_UNIX},\n" |
3453619b | 893 | "only @var{address} is specified and must be a string with the\n" |
b380b885 MD |
894 | "filename where the socket is to be created.\n\n" |
895 | "For a socket of family @code{AF_INET},\n" | |
3453619b GH |
896 | "@var{address} must be an integer IPv4 host address and\n" |
897 | "@var{args} must be a single integer port number.\n\n" | |
898 | "For a socket of family @code{AF_INET6},\n" | |
899 | "@var{address} must be an integer IPv6 host address and\n" | |
900 | "@var{args} may be up to three integers:\n" | |
901 | "port [flowinfo] [scope_id],\n" | |
902 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
903 | "Alternatively, the second argument can be a socket address object " |
904 | "as returned by @code{make-socket-address}, in which case the " | |
905 | "no additional arguments should be passed.\n\n" | |
b380b885 | 906 | "The return value is unspecified.") |
1bbd0b84 | 907 | #define FUNC_NAME s_scm_connect |
0f2d19dd | 908 | { |
370312ae GH |
909 | int fd; |
910 | struct sockaddr *soka; | |
9c0129ac | 911 | size_t size; |
0f2d19dd | 912 | |
78446828 | 913 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 914 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 915 | fd = SCM_FPORT_FDES (sock); |
9c0129ac | 916 | |
d223c3fc | 917 | if (scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
918 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a |
919 | `socket address' object. */ | |
920 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
921 | else | |
922 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
923 | &args, 3, FUNC_NAME, &size); | |
924 | ||
370312ae | 925 | if (connect (fd, soka, size) == -1) |
439006bf GH |
926 | { |
927 | int save_errno = errno; | |
9c0129ac | 928 | |
439006bf GH |
929 | free (soka); |
930 | errno = save_errno; | |
931 | SCM_SYSERROR; | |
932 | } | |
933 | free (soka); | |
370312ae | 934 | return SCM_UNSPECIFIED; |
0f2d19dd | 935 | } |
1bbd0b84 | 936 | #undef FUNC_NAME |
0f2d19dd | 937 | |
9c0129ac KR |
938 | SCM_DEFINE (scm_bind, "bind", 2, 1, 1, |
939 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 940 | "Assign an address to the socket port @var{sock}.\n" |
b380b885 MD |
941 | "Generally this only needs to be done for server sockets,\n" |
942 | "so they know where to look for incoming connections. A socket\n" | |
943 | "without an address will be assigned one automatically when it\n" | |
944 | "starts communicating.\n\n" | |
eefae538 GH |
945 | "The format of @var{address} and @var{args} depends\n" |
946 | "on the family of the socket.\n\n" | |
b380b885 | 947 | "For a socket of family @code{AF_UNIX}, only @var{address}\n" |
eefae538 GH |
948 | "is specified and must be a string with the filename where\n" |
949 | "the socket is to be created.\n\n" | |
950 | "For a socket of family @code{AF_INET}, @var{address}\n" | |
951 | "must be an integer IPv4 address and @var{args}\n" | |
952 | "must be a single integer port number.\n\n" | |
953 | "The values of the following variables can also be used for\n" | |
954 | "@var{address}:\n\n" | |
b380b885 MD |
955 | "@defvar INADDR_ANY\n" |
956 | "Allow connections from any address.\n" | |
957 | "@end defvar\n\n" | |
958 | "@defvar INADDR_LOOPBACK\n" | |
959 | "The address of the local host using the loopback device.\n" | |
960 | "@end defvar\n\n" | |
961 | "@defvar INADDR_BROADCAST\n" | |
962 | "The broadcast address on the local network.\n" | |
963 | "@end defvar\n\n" | |
964 | "@defvar INADDR_NONE\n" | |
965 | "No address.\n" | |
966 | "@end defvar\n\n" | |
eefae538 GH |
967 | "For a socket of family @code{AF_INET6}, @var{address}\n" |
968 | "must be an integer IPv6 address and @var{args}\n" | |
969 | "may be up to three integers:\n" | |
970 | "port [flowinfo] [scope_id],\n" | |
971 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
972 | "Alternatively, the second argument can be a socket address object " |
973 | "as returned by @code{make-socket-address}, in which case the " | |
974 | "no additional arguments should be passed.\n\n" | |
b380b885 | 975 | "The return value is unspecified.") |
1bbd0b84 | 976 | #define FUNC_NAME s_scm_bind |
370312ae | 977 | { |
370312ae | 978 | struct sockaddr *soka; |
9c0129ac | 979 | size_t size; |
370312ae GH |
980 | int fd; |
981 | ||
78446828 | 982 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 983 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 984 | fd = SCM_FPORT_FDES (sock); |
9c0129ac | 985 | |
d223c3fc | 986 | if (scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
987 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a |
988 | `socket address' object. */ | |
989 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
990 | else | |
991 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
992 | &args, 3, FUNC_NAME, &size); | |
993 | ||
994 | ||
439006bf GH |
995 | if (bind (fd, soka, size) == -1) |
996 | { | |
997 | int save_errno = errno; | |
9c0129ac | 998 | |
439006bf GH |
999 | free (soka); |
1000 | errno = save_errno; | |
1bbd0b84 | 1001 | SCM_SYSERROR; |
439006bf GH |
1002 | } |
1003 | free (soka); | |
370312ae GH |
1004 | return SCM_UNSPECIFIED; |
1005 | } | |
1bbd0b84 | 1006 | #undef FUNC_NAME |
370312ae | 1007 | |
a1ec6916 | 1008 | SCM_DEFINE (scm_listen, "listen", 2, 0, 0, |
1bbd0b84 | 1009 | (SCM sock, SCM backlog), |
eefae538 | 1010 | "Enable @var{sock} to accept connection\n" |
b380b885 MD |
1011 | "requests. @var{backlog} is an integer specifying\n" |
1012 | "the maximum length of the queue for pending connections.\n" | |
eefae538 GH |
1013 | "If the queue fills, new clients will fail to connect until\n" |
1014 | "the server calls @code{accept} to accept a connection from\n" | |
1015 | "the queue.\n\n" | |
b380b885 | 1016 | "The return value is unspecified.") |
1bbd0b84 | 1017 | #define FUNC_NAME s_scm_listen |
370312ae GH |
1018 | { |
1019 | int fd; | |
78446828 | 1020 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1021 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1022 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 1023 | if (listen (fd, scm_to_int (backlog)) == -1) |
1bbd0b84 | 1024 | SCM_SYSERROR; |
370312ae GH |
1025 | return SCM_UNSPECIFIED; |
1026 | } | |
1bbd0b84 | 1027 | #undef FUNC_NAME |
370312ae GH |
1028 | |
1029 | /* Put the components of a sockaddr into a new SCM vector. */ | |
9c0129ac | 1030 | static SCM_C_INLINE_KEYWORD SCM |
f43f3620 LC |
1031 | _scm_from_sockaddr (const scm_t_max_sockaddr *address, unsigned addr_size, |
1032 | const char *proc) | |
0f2d19dd | 1033 | { |
f43f3620 LC |
1034 | SCM result = SCM_EOL; |
1035 | short int fam = ((struct sockaddr *) address)->sa_family; | |
439006bf | 1036 | |
5a525b84 | 1037 | switch (fam) |
0f2d19dd | 1038 | { |
5a525b84 GH |
1039 | case AF_INET: |
1040 | { | |
e1368a8d | 1041 | const struct sockaddr_in *nad = (struct sockaddr_in *) address; |
439006bf | 1042 | |
1d1559ce | 1043 | result = scm_c_make_vector (3, SCM_UNSPECIFIED); |
34d19ef6 | 1044 | |
4057a3e0 MV |
1045 | SCM_SIMPLE_VECTOR_SET(result, 0, |
1046 | scm_from_short (fam)); | |
1047 | SCM_SIMPLE_VECTOR_SET(result, 1, | |
1048 | scm_from_ulong (ntohl (nad->sin_addr.s_addr))); | |
1049 | SCM_SIMPLE_VECTOR_SET(result, 2, | |
1050 | scm_from_ushort (ntohs (nad->sin_port))); | |
5a525b84 GH |
1051 | } |
1052 | break; | |
a57a0b1e | 1053 | #ifdef HAVE_IPV6 |
5a525b84 GH |
1054 | case AF_INET6: |
1055 | { | |
e1368a8d | 1056 | const struct sockaddr_in6 *nad = (struct sockaddr_in6 *) address; |
5a525b84 | 1057 | |
1d1559ce | 1058 | result = scm_c_make_vector (5, SCM_UNSPECIFIED); |
4057a3e0 MV |
1059 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
1060 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_ipv6 (nad->sin6_addr.s6_addr)); | |
1061 | SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ushort (ntohs (nad->sin6_port))); | |
1062 | SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_uint32 (nad->sin6_flowinfo)); | |
5a525b84 | 1063 | #ifdef HAVE_SIN6_SCOPE_ID |
4057a3e0 | 1064 | SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_ulong (nad->sin6_scope_id)); |
5a525b84 | 1065 | #else |
4057a3e0 | 1066 | SCM_SIMPLE_VECTOR_SET(result, 4, SCM_INUM0); |
0e958795 | 1067 | #endif |
5a525b84 GH |
1068 | } |
1069 | break; | |
1070 | #endif | |
1071 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1072 | case AF_UNIX: | |
1073 | { | |
e1368a8d | 1074 | const struct sockaddr_un *nad = (struct sockaddr_un *) address; |
439006bf | 1075 | |
1d1559ce | 1076 | result = scm_c_make_vector (2, SCM_UNSPECIFIED); |
34d19ef6 | 1077 | |
4057a3e0 | 1078 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
aca23b65 MV |
1079 | /* When addr_size is not enough to cover sun_path, do not try |
1080 | to access it. */ | |
1081 | if (addr_size <= offsetof (struct sockaddr_un, sun_path)) | |
4057a3e0 | 1082 | SCM_SIMPLE_VECTOR_SET(result, 1, SCM_BOOL_F); |
aca23b65 | 1083 | else |
4057a3e0 | 1084 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (nad->sun_path)); |
5a525b84 GH |
1085 | } |
1086 | break; | |
1087 | #endif | |
1088 | default: | |
9c0129ac KR |
1089 | result = SCM_UNSPECIFIED; |
1090 | scm_misc_error (proc, "unrecognised address family: ~A", | |
e11e83f3 | 1091 | scm_list_1 (scm_from_int (fam))); |
9c0129ac | 1092 | |
0f2d19dd | 1093 | } |
1d1559ce | 1094 | return result; |
370312ae GH |
1095 | } |
1096 | ||
9c0129ac KR |
1097 | /* The publicly-visible function. Return a Scheme object representing |
1098 | ADDRESS, an address of ADDR_SIZE bytes. */ | |
1099 | SCM | |
1100 | scm_from_sockaddr (const struct sockaddr *address, unsigned addr_size) | |
1101 | { | |
f43f3620 LC |
1102 | return (_scm_from_sockaddr ((scm_t_max_sockaddr *) address, |
1103 | addr_size, "scm_from_sockaddr")); | |
9c0129ac KR |
1104 | } |
1105 | ||
1106 | /* Convert ADDRESS, an address object returned by either | |
1107 | `scm_from_sockaddr ()' or `scm_make_socket_address ()', into its C | |
1108 | representation. On success, a non-NULL pointer is returned and | |
1109 | ADDRESS_SIZE is updated to the actual size (in bytes) of the returned | |
1110 | address. The result must eventually be freed using `free ()'. */ | |
1111 | struct sockaddr * | |
1112 | scm_to_sockaddr (SCM address, size_t *address_size) | |
1113 | #define FUNC_NAME "scm_to_sockaddr" | |
1114 | { | |
1115 | short int family; | |
1116 | struct sockaddr *c_address = NULL; | |
1117 | ||
1118 | SCM_VALIDATE_VECTOR (1, address); | |
1119 | ||
1120 | *address_size = 0; | |
1121 | family = scm_to_short (SCM_SIMPLE_VECTOR_REF (address, 0)); | |
1122 | ||
1123 | switch (family) | |
1124 | { | |
1125 | case AF_INET: | |
1126 | { | |
1127 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 3) | |
1128 | scm_misc_error (FUNC_NAME, | |
1129 | "invalid inet address representation: ~A", | |
1130 | scm_list_1 (address)); | |
1131 | else | |
1132 | { | |
1133 | struct sockaddr_in c_inet; | |
1134 | ||
333a81cc NL |
1135 | memset (&c_inet, '\0', sizeof (struct sockaddr_in)); |
1136 | ||
482d311b NL |
1137 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
1138 | c_inet.sin_len = sizeof (struct sockaddr_in); | |
1139 | #endif | |
1140 | ||
9c0129ac KR |
1141 | c_inet.sin_addr.s_addr = |
1142 | htonl (scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 1))); | |
1143 | c_inet.sin_port = | |
1144 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1145 | c_inet.sin_family = AF_INET; | |
1146 | ||
1147 | *address_size = sizeof (c_inet); | |
1148 | c_address = scm_malloc (sizeof (c_inet)); | |
1149 | memcpy (c_address, &c_inet, sizeof (c_inet)); | |
1150 | } | |
1151 | ||
1152 | break; | |
1153 | } | |
1154 | ||
1155 | #ifdef HAVE_IPV6 | |
1156 | case AF_INET6: | |
1157 | { | |
1158 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 5) | |
1159 | scm_misc_error (FUNC_NAME, "invalid inet6 address representation: ~A", | |
1160 | scm_list_1 (address)); | |
1161 | else | |
1162 | { | |
1163 | struct sockaddr_in6 c_inet6; | |
1164 | ||
1ff4da65 NJ |
1165 | scm_to_ipv6 (c_inet6.sin6_addr.s6_addr, |
1166 | SCM_SIMPLE_VECTOR_REF (address, 1)); | |
9c0129ac KR |
1167 | c_inet6.sin6_port = |
1168 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1169 | c_inet6.sin6_flowinfo = | |
1170 | scm_to_uint32 (SCM_SIMPLE_VECTOR_REF (address, 3)); | |
1171 | #ifdef HAVE_SIN6_SCOPE_ID | |
1172 | c_inet6.sin6_scope_id = | |
1173 | scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 4)); | |
1174 | #endif | |
1175 | ||
1176 | c_inet6.sin6_family = AF_INET6; | |
1177 | ||
1178 | *address_size = sizeof (c_inet6); | |
1179 | c_address = scm_malloc (sizeof (c_inet6)); | |
1180 | memcpy (c_address, &c_inet6, sizeof (c_inet6)); | |
1181 | } | |
1182 | ||
1183 | break; | |
1184 | } | |
1185 | #endif | |
1186 | ||
1187 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1188 | case AF_UNIX: | |
1189 | { | |
1190 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 2) | |
1191 | scm_misc_error (FUNC_NAME, "invalid unix address representation: ~A", | |
1192 | scm_list_1 (address)); | |
1193 | else | |
1194 | { | |
1195 | SCM path; | |
1196 | size_t path_len = 0; | |
1197 | ||
1198 | path = SCM_SIMPLE_VECTOR_REF (address, 1); | |
393baa8a | 1199 | if (!scm_is_string (path) && !scm_is_false (path)) |
9c0129ac KR |
1200 | scm_misc_error (FUNC_NAME, "invalid unix address " |
1201 | "path: ~A", scm_list_1 (path)); | |
1202 | else | |
1203 | { | |
1204 | struct sockaddr_un c_unix; | |
1205 | ||
393baa8a | 1206 | if (scm_is_false (path)) |
9c0129ac KR |
1207 | path_len = 0; |
1208 | else | |
1209 | path_len = scm_c_string_length (path); | |
1210 | ||
1211 | #ifdef UNIX_PATH_MAX | |
1212 | if (path_len >= UNIX_PATH_MAX) | |
1213 | #else | |
1214 | /* We can hope that this limit will eventually vanish, at least on GNU. | |
1215 | However, currently, while glibc doesn't define `UNIX_PATH_MAX', it | |
1216 | documents it has being limited to 108 bytes. */ | |
1217 | if (path_len >= sizeof (c_unix.sun_path)) | |
1218 | #endif | |
1219 | scm_misc_error (FUNC_NAME, "unix address path " | |
1220 | "too long: ~A", scm_list_1 (path)); | |
1221 | else | |
1222 | { | |
1223 | if (path_len) | |
1224 | { | |
1225 | scm_to_locale_stringbuf (path, c_unix.sun_path, | |
1226 | #ifdef UNIX_PATH_MAX | |
1227 | UNIX_PATH_MAX); | |
1228 | #else | |
1229 | sizeof (c_unix.sun_path)); | |
1230 | #endif | |
1231 | c_unix.sun_path[path_len] = '\0'; | |
1232 | ||
1233 | /* Sanity check. */ | |
1234 | if (strlen (c_unix.sun_path) != path_len) | |
1235 | scm_misc_error (FUNC_NAME, "unix address path " | |
1236 | "contains nul characters: ~A", | |
1237 | scm_list_1 (path)); | |
1238 | } | |
1239 | else | |
1240 | c_unix.sun_path[0] = '\0'; | |
1241 | ||
1242 | c_unix.sun_family = AF_UNIX; | |
1243 | ||
1244 | *address_size = SUN_LEN (&c_unix); | |
1245 | c_address = scm_malloc (sizeof (c_unix)); | |
1246 | memcpy (c_address, &c_unix, sizeof (c_unix)); | |
1247 | } | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | break; | |
1252 | } | |
1253 | #endif | |
1254 | ||
1255 | default: | |
1256 | scm_misc_error (FUNC_NAME, "unrecognised address family: ~A", | |
1257 | scm_list_1 (scm_from_ushort (family))); | |
1258 | } | |
1259 | ||
1260 | return c_address; | |
1261 | } | |
1262 | #undef FUNC_NAME | |
1263 | ||
1264 | ||
1265 | /* Return a newly-allocated `sockaddr' structure that reflects ADDRESS, being | |
1266 | an address of family FAMILY, with the family-specific parameters ARGS (see | |
1267 | the description of `connect' for details). The returned structure may be | |
1268 | freed using `free ()'. */ | |
1269 | struct sockaddr * | |
1270 | scm_c_make_socket_address (SCM family, SCM address, SCM args, | |
1271 | size_t *address_size) | |
1272 | { | |
9c0129ac KR |
1273 | struct sockaddr *soka; |
1274 | ||
1275 | soka = scm_fill_sockaddr (scm_to_ushort (family), address, &args, 1, | |
d7c6575f | 1276 | "scm_c_make_socket_address", address_size); |
9c0129ac KR |
1277 | |
1278 | return soka; | |
1279 | } | |
1280 | ||
1281 | SCM_DEFINE (scm_make_socket_address, "make-socket-address", 2, 0, 1, | |
1282 | (SCM family, SCM address, SCM args), | |
1283 | "Return a Scheme address object that reflects @var{address}, " | |
1284 | "being an address of family @var{family}, with the " | |
1285 | "family-specific parameters @var{args} (see the description of " | |
1286 | "@code{connect} for details).") | |
1287 | #define FUNC_NAME s_scm_make_socket_address | |
1288 | { | |
1ac5fb45 | 1289 | SCM result = SCM_BOOL_F; |
9c0129ac KR |
1290 | struct sockaddr *c_address; |
1291 | size_t c_address_size; | |
1292 | ||
1293 | c_address = scm_c_make_socket_address (family, address, args, | |
1294 | &c_address_size); | |
1ac5fb45 LC |
1295 | if (c_address != NULL) |
1296 | { | |
1297 | result = scm_from_sockaddr (c_address, c_address_size); | |
1298 | free (c_address); | |
1299 | } | |
9c0129ac | 1300 | |
1ac5fb45 | 1301 | return result; |
9c0129ac KR |
1302 | } |
1303 | #undef FUNC_NAME | |
1304 | ||
1305 | \f | |
a1ec6916 | 1306 | SCM_DEFINE (scm_accept, "accept", 1, 0, 0, |
1bbd0b84 | 1307 | (SCM sock), |
eefae538 GH |
1308 | "Accept a connection on a bound, listening socket.\n" |
1309 | "If there\n" | |
1310 | "are no pending connections in the queue, wait until\n" | |
1311 | "one is available unless the non-blocking option has been\n" | |
1312 | "set on the socket.\n\n" | |
b380b885 | 1313 | "The return value is a\n" |
eefae538 GH |
1314 | "pair in which the @emph{car} is a new socket port for the\n" |
1315 | "connection and\n" | |
1316 | "the @emph{cdr} is an object with address information about the\n" | |
1317 | "client which initiated the connection.\n\n" | |
1318 | "@var{sock} does not become part of the\n" | |
b380b885 | 1319 | "connection and will continue to accept new requests.") |
1bbd0b84 | 1320 | #define FUNC_NAME s_scm_accept |
0f2d19dd | 1321 | { |
e68e0369 | 1322 | int fd; |
370312ae GH |
1323 | int newfd; |
1324 | SCM address; | |
1325 | SCM newsock; | |
5ee417fc | 1326 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1327 | scm_t_max_sockaddr addr; |
370312ae | 1328 | |
78446828 | 1329 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 1330 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1331 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1332 | newfd = accept (fd, (struct sockaddr *) &addr, &addr_size); |
439006bf GH |
1333 | if (newfd == -1) |
1334 | SCM_SYSERROR; | |
1335 | newsock = SCM_SOCK_FD_TO_PORT (newfd); | |
f43f3620 LC |
1336 | address = _scm_from_sockaddr (&addr, addr_size, |
1337 | FUNC_NAME); | |
1338 | ||
370312ae | 1339 | return scm_cons (newsock, address); |
0f2d19dd | 1340 | } |
1bbd0b84 | 1341 | #undef FUNC_NAME |
0f2d19dd | 1342 | |
a1ec6916 | 1343 | SCM_DEFINE (scm_getsockname, "getsockname", 1, 0, 0, |
1bbd0b84 | 1344 | (SCM sock), |
eefae538 | 1345 | "Return the address of @var{sock}, in the same form as the\n" |
1e6808ea MG |
1346 | "object returned by @code{accept}. On many systems the address\n" |
1347 | "of a socket in the @code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1348 | #define FUNC_NAME s_scm_getsockname |
0f2d19dd | 1349 | { |
370312ae | 1350 | int fd; |
5ee417fc | 1351 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1352 | scm_t_max_sockaddr addr; |
439006bf | 1353 | |
78446828 | 1354 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1355 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1356 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1357 | if (getsockname (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1358 | SCM_SYSERROR; |
f43f3620 LC |
1359 | |
1360 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1361 | } |
1bbd0b84 | 1362 | #undef FUNC_NAME |
0f2d19dd | 1363 | |
a1ec6916 | 1364 | SCM_DEFINE (scm_getpeername, "getpeername", 1, 0, 0, |
1bbd0b84 | 1365 | (SCM sock), |
eefae538 | 1366 | "Return the address that @var{sock}\n" |
1e6808ea MG |
1367 | "is connected to, in the same form as the object returned by\n" |
1368 | "@code{accept}. On many systems the address of a socket in the\n" | |
1369 | "@code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1370 | #define FUNC_NAME s_scm_getpeername |
0f2d19dd | 1371 | { |
370312ae | 1372 | int fd; |
5ee417fc | 1373 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1374 | scm_t_max_sockaddr addr; |
439006bf | 1375 | |
78446828 | 1376 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1377 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1378 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1379 | if (getpeername (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1380 | SCM_SYSERROR; |
f43f3620 LC |
1381 | |
1382 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1383 | } |
1bbd0b84 | 1384 | #undef FUNC_NAME |
0f2d19dd | 1385 | |
a1ec6916 | 1386 | SCM_DEFINE (scm_recv, "recv!", 2, 1, 0, |
1bbd0b84 | 1387 | (SCM sock, SCM buf, SCM flags), |
eefae538 GH |
1388 | "Receive data from a socket port.\n" |
1389 | "@var{sock} must already\n" | |
b380b885 | 1390 | "be bound to the address from which data is to be received.\n" |
d21a1dc8 | 1391 | "@var{buf} is a bytevector into which\n" |
eefae538 GH |
1392 | "the data will be written. The size of @var{buf} limits\n" |
1393 | "the amount of\n" | |
b380b885 | 1394 | "data which can be received: in the case of packet\n" |
eefae538 GH |
1395 | "protocols, if a packet larger than this limit is encountered\n" |
1396 | "then some data\n" | |
b380b885 MD |
1397 | "will be irrevocably lost.\n\n" |
1398 | "The optional @var{flags} argument is a value or\n" | |
1399 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" | |
eefae538 GH |
1400 | "The value returned is the number of bytes read from the\n" |
1401 | "socket.\n\n" | |
1402 | "Note that the data is read directly from the socket file\n" | |
1403 | "descriptor:\n" | |
09831f94 | 1404 | "any unread buffered port data is ignored.") |
1bbd0b84 | 1405 | #define FUNC_NAME s_scm_recv |
0f2d19dd | 1406 | { |
d21a1dc8 | 1407 | int rv, fd, flg; |
370312ae | 1408 | |
34d19ef6 | 1409 | SCM_VALIDATE_OPFPORT (1, sock); |
d21a1dc8 | 1410 | |
7cee5b31 MV |
1411 | if (SCM_UNBNDP (flags)) |
1412 | flg = 0; | |
1413 | else | |
1414 | flg = scm_to_int (flags); | |
ee149d03 | 1415 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1416 | |
d21a1dc8 LC |
1417 | #if SCM_ENABLE_DEPRECATED == 1 |
1418 | if (SCM_UNLIKELY (scm_is_string (buf))) | |
1419 | { | |
1420 | SCM msg; | |
1421 | char *dest; | |
1422 | size_t len; | |
1423 | ||
1424 | scm_c_issue_deprecation_warning | |
1425 | ("Passing a string to `recv!' is deprecated, " | |
1426 | "use a bytevector instead."); | |
1427 | ||
1428 | len = scm_i_string_length (buf); | |
190d4b0d | 1429 | msg = scm_i_make_string (len, &dest, 0); |
d21a1dc8 LC |
1430 | SCM_SYSCALL (rv = recv (fd, dest, len, flg)); |
1431 | scm_string_copy_x (buf, scm_from_int (0), | |
1432 | msg, scm_from_int (0), scm_from_size_t (len)); | |
1433 | } | |
1434 | else | |
1435 | #endif | |
1436 | { | |
1437 | SCM_VALIDATE_BYTEVECTOR (1, buf); | |
1438 | ||
1439 | SCM_SYSCALL (rv = recv (fd, | |
1440 | SCM_BYTEVECTOR_CONTENTS (buf), | |
1441 | SCM_BYTEVECTOR_LENGTH (buf), | |
1442 | flg)); | |
1443 | } | |
cc95e00a | 1444 | |
d21a1dc8 | 1445 | if (SCM_UNLIKELY (rv == -1)) |
1bbd0b84 | 1446 | SCM_SYSERROR; |
370312ae | 1447 | |
d21a1dc8 | 1448 | scm_remember_upto_here (buf); |
7cee5b31 | 1449 | return scm_from_int (rv); |
370312ae | 1450 | } |
1bbd0b84 | 1451 | #undef FUNC_NAME |
370312ae | 1452 | |
a1ec6916 | 1453 | SCM_DEFINE (scm_send, "send", 2, 1, 0, |
1bbd0b84 | 1454 | (SCM sock, SCM message, SCM flags), |
d21a1dc8 | 1455 | "Transmit bytevector @var{message} on socket port @var{sock}.\n" |
eefae538 GH |
1456 | "@var{sock} must already be bound to a destination address. The\n" |
1457 | "value returned is the number of bytes transmitted --\n" | |
1458 | "it's possible for\n" | |
1459 | "this to be less than the length of @var{message}\n" | |
1460 | "if the socket is\n" | |
1461 | "set to be non-blocking. The optional @var{flags} argument\n" | |
1462 | "is a value or\n" | |
b380b885 | 1463 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1464 | "Note that the data is written directly to the socket\n" |
1465 | "file descriptor:\n" | |
587a3355 MG |
1466 | "any unflushed buffered port data is ignored.\n\n" |
1467 | "This operation is defined only for strings containing codepoints\n" | |
1468 | "zero to 255.") | |
1bbd0b84 | 1469 | #define FUNC_NAME s_scm_send |
370312ae | 1470 | { |
d21a1dc8 | 1471 | int rv, fd, flg; |
370312ae | 1472 | |
78446828 | 1473 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1474 | SCM_VALIDATE_OPFPORT (1, sock); |
587a3355 | 1475 | |
7cee5b31 MV |
1476 | if (SCM_UNBNDP (flags)) |
1477 | flg = 0; | |
1478 | else | |
1479 | flg = scm_to_int (flags); | |
d21a1dc8 | 1480 | |
ee149d03 | 1481 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1482 | |
d21a1dc8 LC |
1483 | #if SCM_ENABLE_DEPRECATED == 1 |
1484 | if (SCM_UNLIKELY (scm_is_string (message))) | |
1485 | { | |
1486 | scm_c_issue_deprecation_warning | |
1487 | ("Passing a string to `send' is deprecated, " | |
1488 | "use a bytevector instead."); | |
1489 | ||
1490 | /* If the string is wide, see if it can be coerced into a narrow | |
1491 | string. */ | |
1492 | if (!scm_i_is_narrow_string (message) | |
1493 | || !scm_i_try_narrow_string (message)) | |
1494 | SCM_MISC_ERROR ("the message string is not 8-bit: ~s", | |
1495 | scm_list_1 (message)); | |
1496 | ||
1497 | SCM_SYSCALL (rv = send (fd, | |
1498 | scm_i_string_chars (message), | |
1499 | scm_i_string_length (message), | |
1500 | flg)); | |
1501 | } | |
1502 | else | |
1503 | #endif | |
1504 | { | |
1505 | SCM_VALIDATE_BYTEVECTOR (1, message); | |
1506 | ||
1507 | SCM_SYSCALL (rv = send (fd, | |
1508 | SCM_BYTEVECTOR_CONTENTS (message), | |
1509 | SCM_BYTEVECTOR_LENGTH (message), | |
1510 | flg)); | |
1511 | } | |
cc95e00a | 1512 | |
370312ae | 1513 | if (rv == -1) |
1bbd0b84 | 1514 | SCM_SYSERROR; |
396e5506 MV |
1515 | |
1516 | scm_remember_upto_here_1 (message); | |
7cee5b31 | 1517 | return scm_from_int (rv); |
370312ae | 1518 | } |
1bbd0b84 | 1519 | #undef FUNC_NAME |
370312ae | 1520 | |
a1ec6916 | 1521 | SCM_DEFINE (scm_recvfrom, "recvfrom!", 2, 3, 0, |
d21a1dc8 | 1522 | (SCM sock, SCM buf, SCM flags, SCM start, SCM end), |
8ab3d8a0 KR |
1523 | "Receive data from socket port @var{sock} (which must be already\n" |
1524 | "bound), returning the originating address as well as the data.\n" | |
1525 | "This is usually for use on datagram sockets, but can be used on\n" | |
1526 | "stream-oriented sockets too.\n" | |
1527 | "\n" | |
d21a1dc8 LC |
1528 | "The data received is stored in bytevector @var{buf}, using\n" |
1529 | "either the whole bytevector or just the region between the optional\n" | |
1530 | "@var{start} and @var{end} positions. The size of @var{buf}\n" | |
1531 | "limits the amount of data that can be received. For datagram\n" | |
8ab3d8a0 KR |
1532 | "protocols, if a packet larger than this is received then excess\n" |
1533 | "bytes are irrevocably lost.\n" | |
1534 | "\n" | |
1535 | "The return value is a pair. The @code{car} is the number of\n" | |
1536 | "bytes read. The @code{cdr} is a socket address object which is\n" | |
d21a1dc8 | 1537 | "where the data came from, or @code{#f} if the origin is\n" |
8ab3d8a0 KR |
1538 | "unknown.\n" |
1539 | "\n" | |
1540 | "The optional @var{flags} argument is a or bitwise OR\n" | |
1541 | "(@code{logior}) of @code{MSG_OOB}, @code{MSG_PEEK},\n" | |
1542 | "@code{MSG_DONTROUTE} etc.\n" | |
1543 | "\n" | |
1544 | "Data is read directly from the socket file descriptor, any\n" | |
1545 | "buffered port data is ignored.\n" | |
1546 | "\n" | |
1547 | "On a GNU/Linux system @code{recvfrom!} is not multi-threading,\n" | |
1548 | "all threads stop while a @code{recvfrom!} call is in progress.\n" | |
1549 | "An application may need to use @code{select}, @code{O_NONBLOCK}\n" | |
1550 | "or @code{MSG_DONTWAIT} to avoid this.") | |
1bbd0b84 | 1551 | #define FUNC_NAME s_scm_recvfrom |
370312ae | 1552 | { |
d21a1dc8 | 1553 | int rv, fd, flg; |
370312ae | 1554 | SCM address; |
d21a1dc8 | 1555 | size_t offset, cend; |
5ee417fc | 1556 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1557 | scm_t_max_sockaddr addr; |
370312ae | 1558 | |
34d19ef6 | 1559 | SCM_VALIDATE_OPFPORT (1, sock); |
60d02d09 | 1560 | fd = SCM_FPORT_FDES (sock); |
396e5506 | 1561 | |
1146b6cd GH |
1562 | if (SCM_UNBNDP (flags)) |
1563 | flg = 0; | |
370312ae | 1564 | else |
60d02d09 | 1565 | SCM_VALIDATE_ULONG_COPY (3, flags, flg); |
370312ae | 1566 | |
f43f3620 | 1567 | ((struct sockaddr *) &addr)->sa_family = AF_UNSPEC; |
d21a1dc8 LC |
1568 | |
1569 | #if SCM_ENABLE_DEPRECATED == 1 | |
1570 | if (SCM_UNLIKELY (scm_is_string (buf))) | |
1571 | { | |
1572 | char *cbuf; | |
1573 | ||
1574 | scm_c_issue_deprecation_warning | |
1575 | ("Passing a string to `recvfrom!' is deprecated, " | |
1576 | "use a bytevector instead."); | |
1577 | ||
1578 | scm_i_get_substring_spec (scm_i_string_length (buf), | |
1579 | start, &offset, end, &cend); | |
1580 | ||
1581 | buf = scm_i_string_start_writing (buf); | |
1582 | cbuf = scm_i_string_writable_chars (buf); | |
1583 | ||
1584 | SCM_SYSCALL (rv = recvfrom (fd, cbuf + offset, | |
1585 | cend - offset, flg, | |
1586 | (struct sockaddr *) &addr, &addr_size)); | |
1587 | scm_i_string_stop_writing (); | |
1588 | } | |
1589 | else | |
1590 | #endif | |
1591 | { | |
1592 | SCM_VALIDATE_BYTEVECTOR (1, buf); | |
1593 | ||
1594 | if (SCM_UNBNDP (start)) | |
1595 | offset = 0; | |
1596 | else | |
1597 | offset = scm_to_size_t (start); | |
1598 | ||
1599 | if (SCM_UNBNDP (end)) | |
1600 | cend = SCM_BYTEVECTOR_LENGTH (buf); | |
1601 | else | |
1602 | { | |
1603 | cend = scm_to_size_t (end); | |
1604 | if (SCM_UNLIKELY (cend >= SCM_BYTEVECTOR_LENGTH (buf) | |
1605 | || cend < offset)) | |
1606 | scm_out_of_range (FUNC_NAME, end); | |
1607 | } | |
1608 | ||
1609 | SCM_SYSCALL (rv = recvfrom (fd, | |
1610 | SCM_BYTEVECTOR_CONTENTS (buf) + offset, | |
1611 | cend - offset, flg, | |
1612 | (struct sockaddr *) &addr, &addr_size)); | |
1613 | } | |
cc95e00a | 1614 | |
370312ae | 1615 | if (rv == -1) |
1bbd0b84 | 1616 | SCM_SYSERROR; |
d21a1dc8 LC |
1617 | |
1618 | /* `recvfrom' does not necessarily return an address. Usually nothing | |
1619 | is returned for stream sockets. */ | |
f43f3620 LC |
1620 | if (((struct sockaddr *) &addr)->sa_family != AF_UNSPEC) |
1621 | address = _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
370312ae GH |
1622 | else |
1623 | address = SCM_BOOL_F; | |
1624 | ||
d21a1dc8 | 1625 | scm_remember_upto_here_1 (buf); |
f43f3620 | 1626 | |
e11e83f3 | 1627 | return scm_cons (scm_from_int (rv), address); |
0f2d19dd | 1628 | } |
1bbd0b84 | 1629 | #undef FUNC_NAME |
0f2d19dd | 1630 | |
9c0129ac KR |
1631 | SCM_DEFINE (scm_sendto, "sendto", 3, 1, 1, |
1632 | (SCM sock, SCM message, SCM fam_or_sockaddr, SCM address, SCM args_and_flags), | |
d21a1dc8 | 1633 | "Transmit bytevector @var{message} on socket port\n" |
eefae538 | 1634 | "@var{sock}. The\n" |
b7e64f8b | 1635 | "destination address is specified using the @var{fam_or_sockaddr},\n" |
eefae538 | 1636 | "@var{address} and\n" |
9c0129ac KR |
1637 | "@var{args_and_flags} arguments, or just a socket address object " |
1638 | "returned by @code{make-socket-address}, in a similar way to the\n" | |
eefae538 GH |
1639 | "@code{connect} procedure. @var{args_and_flags} contains\n" |
1640 | "the usual connection arguments optionally followed by\n" | |
1641 | "a flags argument, which is a value or\n" | |
b380b885 | 1642 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1643 | "The value returned is the number of bytes transmitted --\n" |
1644 | "it's possible for\n" | |
1645 | "this to be less than the length of @var{message} if the\n" | |
1646 | "socket is\n" | |
1647 | "set to be non-blocking.\n" | |
1648 | "Note that the data is written directly to the socket\n" | |
1649 | "file descriptor:\n" | |
587a3355 MG |
1650 | "any unflushed buffered port data is ignored.\n" |
1651 | "This operation is defined only for strings containing codepoints\n" | |
1652 | "zero to 255.") | |
1bbd0b84 | 1653 | #define FUNC_NAME s_scm_sendto |
370312ae | 1654 | { |
d21a1dc8 | 1655 | int rv, fd, flg; |
370312ae | 1656 | struct sockaddr *soka; |
9c0129ac | 1657 | size_t size; |
370312ae | 1658 | |
78446828 | 1659 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1660 | SCM_VALIDATE_FPORT (1, sock); |
ee149d03 | 1661 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
1662 | |
1663 | if (!scm_is_number (fam_or_sockaddr)) | |
1664 | { | |
1665 | /* FAM_OR_SOCKADDR must actually be a `socket address' object. This | |
1666 | means that the following arguments, i.e. ADDRESS and those listed in | |
1667 | ARGS_AND_FLAGS, are the `MSG_' flags. */ | |
1668 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
d223c3fc | 1669 | if (!scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
1670 | args_and_flags = scm_cons (address, args_and_flags); |
1671 | } | |
1672 | else | |
1673 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
1674 | &args_and_flags, 3, FUNC_NAME, &size); | |
1675 | ||
d2e53ed6 | 1676 | if (scm_is_null (args_and_flags)) |
370312ae GH |
1677 | flg = 0; |
1678 | else | |
1679 | { | |
34d19ef6 | 1680 | SCM_VALIDATE_CONS (5, args_and_flags); |
e4b265d8 | 1681 | flg = SCM_NUM2ULONG (5, SCM_CAR (args_and_flags)); |
370312ae | 1682 | } |
d21a1dc8 LC |
1683 | |
1684 | #if SCM_ENABLE_DEPRECATED == 1 | |
1685 | if (SCM_UNLIKELY (scm_is_string (message))) | |
1686 | { | |
1687 | scm_c_issue_deprecation_warning | |
1688 | ("Passing a string to `sendto' is deprecated, " | |
1689 | "use a bytevector instead."); | |
1690 | ||
1691 | /* If the string is wide, see if it can be coerced into a narrow | |
1692 | string. */ | |
1693 | if (!scm_i_is_narrow_string (message) | |
1694 | || !scm_i_try_narrow_string (message)) | |
1695 | SCM_MISC_ERROR ("the message string is not 8-bit: ~s", | |
1696 | scm_list_1 (message)); | |
1697 | ||
1698 | SCM_SYSCALL (rv = sendto (fd, | |
1699 | scm_i_string_chars (message), | |
1700 | scm_i_string_length (message), | |
1701 | flg, soka, size)); | |
1702 | } | |
1703 | else | |
1704 | #endif | |
1705 | { | |
1706 | SCM_VALIDATE_BYTEVECTOR (1, message); | |
1707 | ||
1708 | SCM_SYSCALL (rv = sendto (fd, | |
1709 | SCM_BYTEVECTOR_CONTENTS (message), | |
1710 | SCM_BYTEVECTOR_LENGTH (message), | |
1711 | flg, soka, size)); | |
1712 | } | |
1713 | ||
370312ae | 1714 | if (rv == -1) |
439006bf GH |
1715 | { |
1716 | int save_errno = errno; | |
1717 | free (soka); | |
1718 | errno = save_errno; | |
1719 | SCM_SYSERROR; | |
1720 | } | |
1721 | free (soka); | |
396e5506 MV |
1722 | |
1723 | scm_remember_upto_here_1 (message); | |
e11e83f3 | 1724 | return scm_from_int (rv); |
370312ae | 1725 | } |
1bbd0b84 | 1726 | #undef FUNC_NAME |
370312ae GH |
1727 | \f |
1728 | ||
1729 | ||
1730 | void | |
0f2d19dd | 1731 | scm_init_socket () |
0f2d19dd | 1732 | { |
370312ae GH |
1733 | /* protocol families. */ |
1734 | #ifdef AF_UNSPEC | |
e11e83f3 | 1735 | scm_c_define ("AF_UNSPEC", scm_from_int (AF_UNSPEC)); |
370312ae GH |
1736 | #endif |
1737 | #ifdef AF_UNIX | |
e11e83f3 | 1738 | scm_c_define ("AF_UNIX", scm_from_int (AF_UNIX)); |
370312ae GH |
1739 | #endif |
1740 | #ifdef AF_INET | |
e11e83f3 | 1741 | scm_c_define ("AF_INET", scm_from_int (AF_INET)); |
370312ae | 1742 | #endif |
3453619b | 1743 | #ifdef AF_INET6 |
e11e83f3 | 1744 | scm_c_define ("AF_INET6", scm_from_int (AF_INET6)); |
3453619b | 1745 | #endif |
370312ae GH |
1746 | |
1747 | #ifdef PF_UNSPEC | |
e11e83f3 | 1748 | scm_c_define ("PF_UNSPEC", scm_from_int (PF_UNSPEC)); |
370312ae GH |
1749 | #endif |
1750 | #ifdef PF_UNIX | |
e11e83f3 | 1751 | scm_c_define ("PF_UNIX", scm_from_int (PF_UNIX)); |
370312ae GH |
1752 | #endif |
1753 | #ifdef PF_INET | |
e11e83f3 | 1754 | scm_c_define ("PF_INET", scm_from_int (PF_INET)); |
370312ae | 1755 | #endif |
3453619b | 1756 | #ifdef PF_INET6 |
e11e83f3 | 1757 | scm_c_define ("PF_INET6", scm_from_int (PF_INET6)); |
3453619b | 1758 | #endif |
370312ae | 1759 | |
66c73b76 GH |
1760 | /* standard addresses. */ |
1761 | #ifdef INADDR_ANY | |
b9bd8526 | 1762 | scm_c_define ("INADDR_ANY", scm_from_ulong (INADDR_ANY)); |
66c73b76 GH |
1763 | #endif |
1764 | #ifdef INADDR_BROADCAST | |
b9bd8526 | 1765 | scm_c_define ("INADDR_BROADCAST", scm_from_ulong (INADDR_BROADCAST)); |
66c73b76 GH |
1766 | #endif |
1767 | #ifdef INADDR_NONE | |
b9bd8526 | 1768 | scm_c_define ("INADDR_NONE", scm_from_ulong (INADDR_NONE)); |
66c73b76 GH |
1769 | #endif |
1770 | #ifdef INADDR_LOOPBACK | |
b9bd8526 | 1771 | scm_c_define ("INADDR_LOOPBACK", scm_from_ulong (INADDR_LOOPBACK)); |
66c73b76 GH |
1772 | #endif |
1773 | ||
6f637a1b KR |
1774 | /* socket types. |
1775 | ||
1776 | SOCK_PACKET is deliberately omitted, the GNU/Linux socket(2) and | |
1777 | packet(7) advise that it's obsolete and strongly deprecated. */ | |
1778 | ||
370312ae | 1779 | #ifdef SOCK_STREAM |
e11e83f3 | 1780 | scm_c_define ("SOCK_STREAM", scm_from_int (SOCK_STREAM)); |
370312ae GH |
1781 | #endif |
1782 | #ifdef SOCK_DGRAM | |
e11e83f3 | 1783 | scm_c_define ("SOCK_DGRAM", scm_from_int (SOCK_DGRAM)); |
370312ae | 1784 | #endif |
6f637a1b KR |
1785 | #ifdef SOCK_SEQPACKET |
1786 | scm_c_define ("SOCK_SEQPACKET", scm_from_int (SOCK_SEQPACKET)); | |
1787 | #endif | |
370312ae | 1788 | #ifdef SOCK_RAW |
e11e83f3 | 1789 | scm_c_define ("SOCK_RAW", scm_from_int (SOCK_RAW)); |
370312ae | 1790 | #endif |
6f637a1b KR |
1791 | #ifdef SOCK_RDM |
1792 | scm_c_define ("SOCK_RDM", scm_from_int (SOCK_RDM)); | |
1793 | #endif | |
370312ae | 1794 | |
8fae2bf4 KR |
1795 | /* setsockopt level. |
1796 | ||
1797 | SOL_IP, SOL_TCP and SOL_UDP are defined on gnu/linux, but not on for | |
1798 | instance NetBSD. We define IPPROTOs because that's what the posix spec | |
1799 | shows in its example at | |
1800 | ||
1801 | http://www.opengroup.org/onlinepubs/007904975/functions/getsockopt.html | |
1802 | */ | |
370312ae | 1803 | #ifdef SOL_SOCKET |
e11e83f3 | 1804 | scm_c_define ("SOL_SOCKET", scm_from_int (SOL_SOCKET)); |
370312ae | 1805 | #endif |
8fae2bf4 KR |
1806 | #ifdef IPPROTO_IP |
1807 | scm_c_define ("IPPROTO_IP", scm_from_int (IPPROTO_IP)); | |
370312ae | 1808 | #endif |
8fae2bf4 KR |
1809 | #ifdef IPPROTO_TCP |
1810 | scm_c_define ("IPPROTO_TCP", scm_from_int (IPPROTO_TCP)); | |
370312ae | 1811 | #endif |
8fae2bf4 KR |
1812 | #ifdef IPPROTO_UDP |
1813 | scm_c_define ("IPPROTO_UDP", scm_from_int (IPPROTO_UDP)); | |
370312ae GH |
1814 | #endif |
1815 | ||
1816 | /* setsockopt names. */ | |
1817 | #ifdef SO_DEBUG | |
e11e83f3 | 1818 | scm_c_define ("SO_DEBUG", scm_from_int (SO_DEBUG)); |
370312ae GH |
1819 | #endif |
1820 | #ifdef SO_REUSEADDR | |
e11e83f3 | 1821 | scm_c_define ("SO_REUSEADDR", scm_from_int (SO_REUSEADDR)); |
370312ae GH |
1822 | #endif |
1823 | #ifdef SO_STYLE | |
e11e83f3 | 1824 | scm_c_define ("SO_STYLE", scm_from_int (SO_STYLE)); |
370312ae GH |
1825 | #endif |
1826 | #ifdef SO_TYPE | |
e11e83f3 | 1827 | scm_c_define ("SO_TYPE", scm_from_int (SO_TYPE)); |
370312ae GH |
1828 | #endif |
1829 | #ifdef SO_ERROR | |
e11e83f3 | 1830 | scm_c_define ("SO_ERROR", scm_from_int (SO_ERROR)); |
370312ae GH |
1831 | #endif |
1832 | #ifdef SO_DONTROUTE | |
e11e83f3 | 1833 | scm_c_define ("SO_DONTROUTE", scm_from_int (SO_DONTROUTE)); |
370312ae GH |
1834 | #endif |
1835 | #ifdef SO_BROADCAST | |
e11e83f3 | 1836 | scm_c_define ("SO_BROADCAST", scm_from_int (SO_BROADCAST)); |
370312ae GH |
1837 | #endif |
1838 | #ifdef SO_SNDBUF | |
e11e83f3 | 1839 | scm_c_define ("SO_SNDBUF", scm_from_int (SO_SNDBUF)); |
370312ae GH |
1840 | #endif |
1841 | #ifdef SO_RCVBUF | |
e11e83f3 | 1842 | scm_c_define ("SO_RCVBUF", scm_from_int (SO_RCVBUF)); |
370312ae GH |
1843 | #endif |
1844 | #ifdef SO_KEEPALIVE | |
e11e83f3 | 1845 | scm_c_define ("SO_KEEPALIVE", scm_from_int (SO_KEEPALIVE)); |
370312ae GH |
1846 | #endif |
1847 | #ifdef SO_OOBINLINE | |
e11e83f3 | 1848 | scm_c_define ("SO_OOBINLINE", scm_from_int (SO_OOBINLINE)); |
370312ae GH |
1849 | #endif |
1850 | #ifdef SO_NO_CHECK | |
e11e83f3 | 1851 | scm_c_define ("SO_NO_CHECK", scm_from_int (SO_NO_CHECK)); |
370312ae GH |
1852 | #endif |
1853 | #ifdef SO_PRIORITY | |
e11e83f3 | 1854 | scm_c_define ("SO_PRIORITY", scm_from_int (SO_PRIORITY)); |
370312ae GH |
1855 | #endif |
1856 | #ifdef SO_LINGER | |
e11e83f3 | 1857 | scm_c_define ("SO_LINGER", scm_from_int (SO_LINGER)); |
370312ae GH |
1858 | #endif |
1859 | ||
1860 | /* recv/send options. */ | |
8ab3d8a0 KR |
1861 | #ifdef MSG_DONTWAIT |
1862 | scm_c_define ("MSG_DONTWAIT", scm_from_int (MSG_DONTWAIT)); | |
1863 | #endif | |
370312ae | 1864 | #ifdef MSG_OOB |
e11e83f3 | 1865 | scm_c_define ("MSG_OOB", scm_from_int (MSG_OOB)); |
370312ae GH |
1866 | #endif |
1867 | #ifdef MSG_PEEK | |
e11e83f3 | 1868 | scm_c_define ("MSG_PEEK", scm_from_int (MSG_PEEK)); |
370312ae GH |
1869 | #endif |
1870 | #ifdef MSG_DONTROUTE | |
e11e83f3 | 1871 | scm_c_define ("MSG_DONTROUTE", scm_from_int (MSG_DONTROUTE)); |
370312ae GH |
1872 | #endif |
1873 | ||
b4e15479 SJ |
1874 | #ifdef __MINGW32__ |
1875 | scm_i_init_socket_Win32 (); | |
1876 | #endif | |
1877 | ||
1c80707c MV |
1878 | #ifdef IP_ADD_MEMBERSHIP |
1879 | scm_c_define ("IP_ADD_MEMBERSHIP", scm_from_int (IP_ADD_MEMBERSHIP)); | |
1880 | scm_c_define ("IP_DROP_MEMBERSHIP", scm_from_int (IP_DROP_MEMBERSHIP)); | |
1881 | #endif | |
1882 | ||
511246a1 TCM |
1883 | #ifdef IP_MULTICAST_TTL |
1884 | scm_c_define ("IP_MULTICAST_TTL", scm_from_int ( IP_MULTICAST_TTL)); | |
1885 | #endif | |
1886 | ||
1887 | #ifdef IP_MULTICAST_IF | |
1888 | scm_c_define ("IP_MULTICAST_IF", scm_from_int ( IP_MULTICAST_IF)); | |
1889 | #endif | |
1890 | ||
0f2d19dd | 1891 | scm_add_feature ("socket"); |
370312ae | 1892 | |
a0599745 | 1893 | #include "libguile/socket.x" |
0f2d19dd JB |
1894 | } |
1895 | ||
89e00824 ML |
1896 | |
1897 | /* | |
1898 | Local Variables: | |
1899 | c-file-style: "gnu" | |
1900 | End: | |
1901 | */ |