Commit | Line | Data |
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2fa901a5 | 1 | /* Copyright (C) 1996,1997,1998,2000,2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 Free Software Foundation, Inc. |
86667910 | 2 | * |
73be1d9e | 3 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
86667910 | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
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 | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
73be1d9e | 17 | */ |
1bbd0b84 | 18 | |
1bbd0b84 | 19 | |
0f2d19dd JB |
20 | \f |
21 | ||
dbb605f5 | 22 | #ifdef HAVE_CONFIG_H |
eccde741 RB |
23 | # include <config.h> |
24 | #endif | |
25 | ||
e6e2e95a | 26 | #include <errno.h> |
69d49ac8 | 27 | #include <gmp.h> |
e6e2e95a | 28 | |
a0599745 | 29 | #include "libguile/_scm.h" |
2fa901a5 | 30 | #include "libguile/arrays.h" |
a0599745 MD |
31 | #include "libguile/feature.h" |
32 | #include "libguile/fports.h" | |
33 | #include "libguile/strings.h" | |
34 | #include "libguile/vectors.h" | |
7f9994d9 | 35 | #include "libguile/dynwind.h" |
587a3355 | 36 | #include "libguile/srfi-13.h" |
20e6290e | 37 | |
a0599745 MD |
38 | #include "libguile/validate.h" |
39 | #include "libguile/socket.h" | |
95b88819 | 40 | |
7d1fc872 LC |
41 | #include "libguile/iselect.h" |
42 | ||
b4e15479 SJ |
43 | #ifdef __MINGW32__ |
44 | #include "win32-socket.h" | |
45 | #endif | |
46 | ||
af68e5e5 SJ |
47 | #ifdef HAVE_STDINT_H |
48 | #include <stdint.h> | |
49 | #endif | |
95b88819 GH |
50 | #ifdef HAVE_STRING_H |
51 | #include <string.h> | |
52 | #endif | |
370312ae GH |
53 | #ifdef HAVE_UNISTD_H |
54 | #include <unistd.h> | |
55 | #endif | |
0f2d19dd | 56 | #include <sys/types.h> |
f87c105a | 57 | #ifdef HAVE_WINSOCK2_H |
82893676 MG |
58 | #include <winsock2.h> |
59 | #else | |
0f2d19dd | 60 | #include <sys/socket.h> |
1ba8c23a | 61 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
0f2d19dd | 62 | #include <sys/un.h> |
0e958795 | 63 | #endif |
0f2d19dd JB |
64 | #include <netinet/in.h> |
65 | #include <netdb.h> | |
66 | #include <arpa/inet.h> | |
82893676 | 67 | #endif |
0f2d19dd | 68 | |
97d0e20b GH |
69 | #if defined (HAVE_UNIX_DOMAIN_SOCKETS) && !defined (SUN_LEN) |
70 | #define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) \ | |
71 | + strlen ((ptr)->sun_path)) | |
72 | #endif | |
73 | ||
f43f3620 LC |
74 | /* The largest possible socket address. Wrapping it in a union guarantees |
75 | that the compiler will make it suitably aligned. */ | |
76 | typedef union | |
77 | { | |
78 | struct sockaddr sockaddr; | |
79 | struct sockaddr_in sockaddr_in; | |
80 | ||
81 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
82 | struct sockaddr_un sockaddr_un; | |
83 | #endif | |
84 | #ifdef HAVE_IPV6 | |
85 | struct sockaddr_in6 sockaddr_in6; | |
86 | #endif | |
87 | } scm_t_max_sockaddr; | |
88 | ||
89 | ||
90 | /* Maximum size of a socket address. */ | |
91 | #define MAX_ADDR_SIZE (sizeof (scm_t_max_sockaddr)) | |
92 | ||
93 | ||
0f2d19dd JB |
94 | \f |
95 | ||
a1ec6916 | 96 | SCM_DEFINE (scm_htons, "htons", 1, 0, 0, |
eefae538 GH |
97 | (SCM value), |
98 | "Convert a 16 bit quantity from host to network byte ordering.\n" | |
99 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
100 | "and returned as a new integer.") | |
1bbd0b84 | 101 | #define FUNC_NAME s_scm_htons |
5c11cc9d | 102 | { |
7cee5b31 | 103 | return scm_from_ushort (htons (scm_to_ushort (value))); |
5c11cc9d | 104 | } |
1bbd0b84 | 105 | #undef FUNC_NAME |
5c11cc9d | 106 | |
a1ec6916 | 107 | SCM_DEFINE (scm_ntohs, "ntohs", 1, 0, 0, |
eefae538 GH |
108 | (SCM value), |
109 | "Convert a 16 bit quantity from network to host byte ordering.\n" | |
110 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
111 | "and returned as a new integer.") | |
1bbd0b84 | 112 | #define FUNC_NAME s_scm_ntohs |
5c11cc9d | 113 | { |
7cee5b31 | 114 | return scm_from_ushort (ntohs (scm_to_ushort (value))); |
5c11cc9d | 115 | } |
1bbd0b84 | 116 | #undef FUNC_NAME |
5c11cc9d | 117 | |
a1ec6916 | 118 | SCM_DEFINE (scm_htonl, "htonl", 1, 0, 0, |
eefae538 GH |
119 | (SCM value), |
120 | "Convert a 32 bit quantity from host to network byte ordering.\n" | |
121 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
122 | "and returned as a new integer.") | |
1bbd0b84 | 123 | #define FUNC_NAME s_scm_htonl |
5c11cc9d | 124 | { |
8ab3d8a0 | 125 | return scm_from_ulong (htonl (scm_to_uint32 (value))); |
5c11cc9d | 126 | } |
1bbd0b84 | 127 | #undef FUNC_NAME |
5c11cc9d | 128 | |
a1ec6916 | 129 | SCM_DEFINE (scm_ntohl, "ntohl", 1, 0, 0, |
eefae538 GH |
130 | (SCM value), |
131 | "Convert a 32 bit quantity from network to host byte ordering.\n" | |
132 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
133 | "and returned as a new integer.") | |
1bbd0b84 | 134 | #define FUNC_NAME s_scm_ntohl |
5c11cc9d | 135 | { |
8ab3d8a0 | 136 | return scm_from_ulong (ntohl (scm_to_uint32 (value))); |
5c11cc9d | 137 | } |
1bbd0b84 | 138 | #undef FUNC_NAME |
5c11cc9d | 139 | |
66c73b76 GH |
140 | #ifdef HAVE_INET_NETOF |
141 | SCM_DEFINE (scm_inet_netof, "inet-netof", 1, 0, 0, | |
142 | (SCM address), | |
eefae538 GH |
143 | "Return the network number part of the given IPv4\n" |
144 | "Internet address. E.g.,\n\n" | |
66c73b76 GH |
145 | "@lisp\n" |
146 | "(inet-netof 2130706433) @result{} 127\n" | |
147 | "@end lisp") | |
148 | #define FUNC_NAME s_scm_inet_netof | |
149 | { | |
150 | struct in_addr addr; | |
151 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
b9bd8526 | 152 | return scm_from_ulong (inet_netof (addr)); |
66c73b76 GH |
153 | } |
154 | #undef FUNC_NAME | |
155 | #endif | |
156 | ||
157 | #ifdef HAVE_INET_LNAOF | |
158 | SCM_DEFINE (scm_lnaof, "inet-lnaof", 1, 0, 0, | |
159 | (SCM address), | |
160 | "Return the local-address-with-network part of the given\n" | |
eefae538 GH |
161 | "IPv4 Internet address, using the obsolete class A/B/C system.\n" |
162 | "E.g.,\n\n" | |
66c73b76 GH |
163 | "@lisp\n" |
164 | "(inet-lnaof 2130706433) @result{} 1\n" | |
165 | "@end lisp") | |
166 | #define FUNC_NAME s_scm_lnaof | |
167 | { | |
168 | struct in_addr addr; | |
169 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
b9bd8526 | 170 | return scm_from_ulong (inet_lnaof (addr)); |
66c73b76 GH |
171 | } |
172 | #undef FUNC_NAME | |
173 | #endif | |
174 | ||
175 | #ifdef HAVE_INET_MAKEADDR | |
176 | SCM_DEFINE (scm_inet_makeaddr, "inet-makeaddr", 2, 0, 0, | |
177 | (SCM net, SCM lna), | |
eefae538 | 178 | "Make an IPv4 Internet address by combining the network number\n" |
66c73b76 | 179 | "@var{net} with the local-address-within-network number\n" |
eefae538 | 180 | "@var{lna}. E.g.,\n\n" |
66c73b76 GH |
181 | "@lisp\n" |
182 | "(inet-makeaddr 127 1) @result{} 2130706433\n" | |
183 | "@end lisp") | |
184 | #define FUNC_NAME s_scm_inet_makeaddr | |
185 | { | |
186 | struct in_addr addr; | |
187 | unsigned long netnum; | |
188 | unsigned long lnanum; | |
189 | ||
190 | netnum = SCM_NUM2ULONG (1, net); | |
191 | lnanum = SCM_NUM2ULONG (2, lna); | |
192 | addr = inet_makeaddr (netnum, lnanum); | |
b9bd8526 | 193 | return scm_from_ulong (ntohl (addr.s_addr)); |
66c73b76 GH |
194 | } |
195 | #undef FUNC_NAME | |
196 | #endif | |
197 | ||
a57a0b1e | 198 | #ifdef HAVE_IPV6 |
eefae538 | 199 | |
66c73b76 GH |
200 | /* flip a 128 bit IPv6 address between host and network order. */ |
201 | #ifdef WORDS_BIGENDIAN | |
202 | #define FLIP_NET_HOST_128(addr) | |
203 | #else | |
204 | #define FLIP_NET_HOST_128(addr)\ | |
205 | {\ | |
206 | int i;\ | |
207 | \ | |
208 | for (i = 0; i < 8; i++)\ | |
209 | {\ | |
2de4f939 | 210 | scm_t_uint8 c = (addr)[i];\ |
66c73b76 GH |
211 | \ |
212 | (addr)[i] = (addr)[15 - i];\ | |
213 | (addr)[15 - i] = c;\ | |
214 | }\ | |
215 | } | |
216 | #endif | |
217 | ||
2de4f939 RB |
218 | #ifdef WORDS_BIGENDIAN |
219 | #define FLIPCPY_NET_HOST_128(dest, src) memcpy (dest, src, 16) | |
220 | #else | |
221 | #define FLIPCPY_NET_HOST_128(dest, src) \ | |
222 | { \ | |
223 | const scm_t_uint8 *tmp_srcp = (src) + 15; \ | |
224 | scm_t_uint8 *tmp_destp = (dest); \ | |
225 | \ | |
226 | do { \ | |
227 | *tmp_destp++ = *tmp_srcp--; \ | |
228 | } while (tmp_srcp != (src)); \ | |
229 | } | |
230 | #endif | |
231 | ||
232 | ||
7310ad0c | 233 | #if (SIZEOF_SCM_T_BITS * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
234 | #error "Assumption that scm_t_bits <= 128 bits has been violated." |
235 | #endif | |
236 | ||
7310ad0c | 237 | #if (SIZEOF_UNSIGNED_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
238 | #error "Assumption that unsigned long <= 128 bits has been violated." |
239 | #endif | |
240 | ||
7310ad0c | 241 | #if (SIZEOF_UNSIGNED_LONG_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
242 | #error "Assumption that unsigned long long <= 128 bits has been violated." |
243 | #endif | |
244 | ||
66c73b76 GH |
245 | /* convert a 128 bit IPv6 address in network order to a host ordered |
246 | SCM integer. */ | |
7cee5b31 MV |
247 | static SCM |
248 | scm_from_ipv6 (const scm_t_uint8 *src) | |
66c73b76 | 249 | { |
2b4d1547 KR |
250 | SCM result = scm_i_mkbig (); |
251 | mpz_import (SCM_I_BIG_MPZ (result), | |
252 | 1, /* chunk */ | |
253 | 1, /* big-endian chunk ordering */ | |
254 | 16, /* chunks are 16 bytes long */ | |
255 | 1, /* big-endian byte ordering */ | |
256 | 0, /* "nails" -- leading unused bits per chunk */ | |
257 | src); | |
258 | return scm_i_normbig (result); | |
259 | } | |
66c73b76 GH |
260 | |
261 | /* convert a host ordered SCM integer to a 128 bit IPv6 address in | |
262 | network order. */ | |
7cee5b31 MV |
263 | static void |
264 | scm_to_ipv6 (scm_t_uint8 dst[16], SCM src) | |
66c73b76 | 265 | { |
e11e83f3 | 266 | if (SCM_I_INUMP (src)) |
66c73b76 | 267 | { |
e11e83f3 | 268 | scm_t_signed_bits n = SCM_I_INUM (src); |
7cee5b31 MV |
269 | if (n < 0) |
270 | scm_out_of_range (NULL, src); | |
2de4f939 RB |
271 | #ifdef WORDS_BIGENDIAN |
272 | memset (dst, 0, 16 - sizeof (scm_t_signed_bits)); | |
273 | memcpy (dst + (16 - sizeof (scm_t_signed_bits)), | |
274 | &n, | |
275 | sizeof (scm_t_signed_bits)); | |
276 | #else | |
277 | memset (dst + sizeof (scm_t_signed_bits), | |
278 | 0, | |
279 | 16 - sizeof (scm_t_signed_bits)); | |
280 | /* FIXME: this pair of ops is kinda wasteful -- should rewrite as | |
281 | a single loop perhaps, similar to the handling of bignums. */ | |
282 | memcpy (dst, &n, sizeof (scm_t_signed_bits)); | |
283 | FLIP_NET_HOST_128 (dst); | |
284 | #endif | |
66c73b76 | 285 | } |
7cee5b31 | 286 | else if (SCM_BIGP (src)) |
66c73b76 | 287 | { |
2de4f939 | 288 | size_t count; |
7cee5b31 MV |
289 | |
290 | if ((mpz_sgn (SCM_I_BIG_MPZ (src)) < 0) | |
291 | || mpz_sizeinbase (SCM_I_BIG_MPZ (src), 2) > 128) | |
292 | scm_out_of_range (NULL, src); | |
293 | ||
66c73b76 | 294 | memset (dst, 0, 16); |
2de4f939 RB |
295 | mpz_export (dst, |
296 | &count, | |
297 | 1, /* big-endian chunk ordering */ | |
298 | 16, /* chunks are 16 bytes long */ | |
299 | 1, /* big-endian byte ordering */ | |
300 | 0, /* "nails" -- leading unused bits per chunk */ | |
301 | SCM_I_BIG_MPZ (src)); | |
302 | scm_remember_upto_here_1 (src); | |
66c73b76 | 303 | } |
2de4f939 | 304 | else |
1ff4da65 | 305 | scm_wrong_type_arg_msg ("scm_to_ipv6", 0, src, "integer"); |
2de4f939 RB |
306 | } |
307 | ||
66c73b76 GH |
308 | SCM_DEFINE (scm_inet_pton, "inet-pton", 2, 0, 0, |
309 | (SCM family, SCM address), | |
eefae538 GH |
310 | "Convert a string containing a printable network address to\n" |
311 | "an integer address. Note that unlike the C version of this\n" | |
312 | "function,\n" | |
66c73b76 | 313 | "the result is an integer with normal host byte ordering.\n" |
eefae538 | 314 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" |
66c73b76 | 315 | "@lisp\n" |
dd85ce47 ML |
316 | "(inet-pton AF_INET \"127.0.0.1\") @result{} 2130706433\n" |
317 | "(inet-pton AF_INET6 \"::1\") @result{} 1\n" | |
66c73b76 GH |
318 | "@end lisp") |
319 | #define FUNC_NAME s_scm_inet_pton | |
320 | { | |
321 | int af; | |
322 | char *src; | |
f43f3620 | 323 | scm_t_uint32 dst[4]; |
396e5506 | 324 | int rv, eno; |
66c73b76 | 325 | |
7cee5b31 | 326 | af = scm_to_int (family); |
66c73b76 | 327 | SCM_ASSERT_RANGE (1, family, af == AF_INET || af == AF_INET6); |
396e5506 | 328 | src = scm_to_locale_string (address); |
66c73b76 | 329 | rv = inet_pton (af, src, dst); |
396e5506 MV |
330 | eno = errno; |
331 | free (src); | |
332 | errno = eno; | |
66c73b76 GH |
333 | if (rv == -1) |
334 | SCM_SYSERROR; | |
335 | else if (rv == 0) | |
336 | SCM_MISC_ERROR ("Bad address", SCM_EOL); | |
337 | if (af == AF_INET) | |
f43f3620 | 338 | return scm_from_ulong (ntohl (*dst)); |
66c73b76 | 339 | else |
5ee417fc | 340 | return scm_from_ipv6 ((scm_t_uint8 *) dst); |
66c73b76 GH |
341 | } |
342 | #undef FUNC_NAME | |
66c73b76 | 343 | |
66c73b76 GH |
344 | SCM_DEFINE (scm_inet_ntop, "inet-ntop", 2, 0, 0, |
345 | (SCM family, SCM address), | |
eefae538 | 346 | "Convert a network address into a printable string.\n" |
66c73b76 GH |
347 | "Note that unlike the C version of this function,\n" |
348 | "the input is an integer with normal host byte ordering.\n" | |
eefae538 | 349 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" |
66c73b76 | 350 | "@lisp\n" |
dd85ce47 | 351 | "(inet-ntop AF_INET 2130706433) @result{} \"127.0.0.1\"\n" |
187a4390 NJ |
352 | "(inet-ntop AF_INET6 (- (expt 2 128) 1))\n" |
353 | " @result{} \"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\"\n" | |
66c73b76 GH |
354 | "@end lisp") |
355 | #define FUNC_NAME s_scm_inet_ntop | |
356 | { | |
357 | int af; | |
358 | #ifdef INET6_ADDRSTRLEN | |
359 | char dst[INET6_ADDRSTRLEN]; | |
360 | #else | |
361 | char dst[46]; | |
362 | #endif | |
7a5fb796 | 363 | const char *result; |
66c73b76 | 364 | |
7cee5b31 | 365 | af = scm_to_int (family); |
66c73b76 GH |
366 | SCM_ASSERT_RANGE (1, family, af == AF_INET || af == AF_INET6); |
367 | if (af == AF_INET) | |
7a5fb796 LC |
368 | { |
369 | scm_t_uint32 addr4; | |
370 | ||
371 | addr4 = htonl (SCM_NUM2ULONG (2, address)); | |
372 | result = inet_ntop (af, &addr4, dst, sizeof (dst)); | |
373 | } | |
66c73b76 | 374 | else |
7a5fb796 LC |
375 | { |
376 | char addr6[16]; | |
377 | ||
378 | scm_to_ipv6 ((scm_t_uint8 *) addr6, address); | |
379 | result = inet_ntop (af, &addr6, dst, sizeof (dst)); | |
380 | } | |
381 | ||
382 | if (result == NULL) | |
66c73b76 | 383 | SCM_SYSERROR; |
7a5fb796 | 384 | |
cc95e00a | 385 | return scm_from_locale_string (dst); |
66c73b76 GH |
386 | } |
387 | #undef FUNC_NAME | |
66c73b76 | 388 | |
a57a0b1e | 389 | #endif /* HAVE_IPV6 */ |
eefae538 | 390 | |
bc45012d | 391 | SCM_SYMBOL (sym_socket, "socket"); |
82ddea4e | 392 | |
439006bf | 393 | #define SCM_SOCK_FD_TO_PORT(fd) scm_fdes_to_port (fd, "r+0", sym_socket) |
1bbd0b84 | 394 | |
a1ec6916 | 395 | SCM_DEFINE (scm_socket, "socket", 3, 0, 0, |
1bbd0b84 | 396 | (SCM family, SCM style, SCM proto), |
1e6808ea | 397 | "Return a new socket port of the type specified by @var{family},\n" |
eefae538 | 398 | "@var{style} and @var{proto}. All three parameters are\n" |
3453619b GH |
399 | "integers. Supported values for @var{family} are\n" |
400 | "@code{AF_UNIX}, @code{AF_INET} and @code{AF_INET6}.\n" | |
401 | "Typical values for @var{style} are @code{SOCK_STREAM},\n" | |
eefae538 GH |
402 | "@code{SOCK_DGRAM} and @code{SOCK_RAW}.\n\n" |
403 | "@var{proto} can be obtained from a protocol name using\n" | |
1e6808ea | 404 | "@code{getprotobyname}. A value of zero specifies the default\n" |
eefae538 | 405 | "protocol, which is usually right.\n\n" |
1e6808ea MG |
406 | "A single socket port cannot by used for communication until it\n" |
407 | "has been connected to another socket.") | |
1bbd0b84 | 408 | #define FUNC_NAME s_scm_socket |
0f2d19dd | 409 | { |
370312ae | 410 | int fd; |
370312ae | 411 | |
7cee5b31 MV |
412 | fd = socket (scm_to_int (family), |
413 | scm_to_int (style), | |
414 | scm_to_int (proto)); | |
439006bf GH |
415 | if (fd == -1) |
416 | SCM_SYSERROR; | |
417 | return SCM_SOCK_FD_TO_PORT (fd); | |
0f2d19dd | 418 | } |
1bbd0b84 | 419 | #undef FUNC_NAME |
0f2d19dd | 420 | |
0e958795 | 421 | #ifdef HAVE_SOCKETPAIR |
a1ec6916 | 422 | SCM_DEFINE (scm_socketpair, "socketpair", 3, 0, 0, |
1bbd0b84 | 423 | (SCM family, SCM style, SCM proto), |
1e6808ea | 424 | "Return a pair of connected (but unnamed) socket ports of the\n" |
eefae538 | 425 | "type specified by @var{family}, @var{style} and @var{proto}.\n" |
1e6808ea MG |
426 | "Many systems support only socket pairs of the @code{AF_UNIX}\n" |
427 | "family. Zero is likely to be the only meaningful value for\n" | |
eefae538 | 428 | "@var{proto}.") |
1bbd0b84 | 429 | #define FUNC_NAME s_scm_socketpair |
0f2d19dd | 430 | { |
370312ae GH |
431 | int fam; |
432 | int fd[2]; | |
370312ae | 433 | |
7cee5b31 | 434 | fam = scm_to_int (family); |
370312ae | 435 | |
7cee5b31 | 436 | if (socketpair (fam, scm_to_int (style), scm_to_int (proto), fd) == -1) |
1bbd0b84 | 437 | SCM_SYSERROR; |
370312ae | 438 | |
439006bf | 439 | return scm_cons (SCM_SOCK_FD_TO_PORT (fd[0]), SCM_SOCK_FD_TO_PORT (fd[1])); |
0f2d19dd | 440 | } |
1bbd0b84 | 441 | #undef FUNC_NAME |
0e958795 | 442 | #endif |
0f2d19dd | 443 | |
f43f3620 LC |
444 | /* Possible results for `getsockopt ()'. Wrapping it into a union guarantees |
445 | suitable alignment. */ | |
446 | typedef union | |
447 | { | |
448 | #ifdef HAVE_STRUCT_LINGER | |
449 | struct linger linger; | |
450 | #endif | |
451 | size_t size; | |
452 | int integer; | |
453 | } scm_t_getsockopt_result; | |
454 | ||
a1ec6916 | 455 | SCM_DEFINE (scm_getsockopt, "getsockopt", 3, 0, 0, |
1bbd0b84 | 456 | (SCM sock, SCM level, SCM optname), |
72e3dae1 KR |
457 | "Return an option value from socket port @var{sock}.\n" |
458 | "\n" | |
459 | "@var{level} is an integer specifying a protocol layer, either\n" | |
460 | "@code{SOL_SOCKET} for socket level options, or a protocol\n" | |
461 | "number from the @code{IPPROTO} constants or @code{getprotoent}\n" | |
462 | "(@pxref{Network Databases}).\n" | |
463 | "\n" | |
464 | "@defvar SOL_SOCKET\n" | |
465 | "@defvarx IPPROTO_IP\n" | |
466 | "@defvarx IPPROTO_TCP\n" | |
467 | "@defvarx IPPROTO_UDP\n" | |
468 | "@end defvar\n" | |
469 | "\n" | |
470 | "@var{optname} is an integer specifying an option within the\n" | |
471 | "protocol layer.\n" | |
472 | "\n" | |
473 | "For @code{SOL_SOCKET} level the following @var{optname}s are\n" | |
474 | "defined (when provided by the system). For their meaning see\n" | |
475 | "@ref{Socket-Level Options,,, libc, The GNU C Library Reference\n" | |
476 | "Manual}, or @command{man 7 socket}.\n" | |
477 | "\n" | |
478 | "@defvar SO_DEBUG\n" | |
479 | "@defvarx SO_REUSEADDR\n" | |
480 | "@defvarx SO_STYLE\n" | |
481 | "@defvarx SO_TYPE\n" | |
482 | "@defvarx SO_ERROR\n" | |
483 | "@defvarx SO_DONTROUTE\n" | |
484 | "@defvarx SO_BROADCAST\n" | |
485 | "@defvarx SO_SNDBUF\n" | |
486 | "@defvarx SO_RCVBUF\n" | |
487 | "@defvarx SO_KEEPALIVE\n" | |
488 | "@defvarx SO_OOBINLINE\n" | |
489 | "@defvarx SO_NO_CHECK\n" | |
490 | "@defvarx SO_PRIORITY\n" | |
491 | "The value returned is an integer.\n" | |
492 | "@end defvar\n" | |
493 | "\n" | |
494 | "@defvar SO_LINGER\n" | |
495 | "The @var{value} returned is a pair of integers\n" | |
496 | "@code{(@var{ENABLE} . @var{TIMEOUT})}. On old systems without\n" | |
497 | "timeout support (ie.@: without @code{struct linger}), only\n" | |
498 | "@var{ENABLE} has an effect but the value in Guile is always a\n" | |
499 | "pair.\n" | |
500 | "@end defvar") | |
1bbd0b84 | 501 | #define FUNC_NAME s_scm_getsockopt |
0f2d19dd | 502 | { |
370312ae | 503 | int fd; |
439006bf | 504 | /* size of optval is the largest supported option. */ |
f43f3620 LC |
505 | scm_t_getsockopt_result optval; |
506 | socklen_t optlen = sizeof (optval); | |
370312ae GH |
507 | int ilevel; |
508 | int ioptname; | |
0f2d19dd | 509 | |
78446828 | 510 | sock = SCM_COERCE_OUTPORT (sock); |
2cf6d014 | 511 | SCM_VALIDATE_OPFPORT (1, sock); |
7cee5b31 MV |
512 | ilevel = scm_to_int (level); |
513 | ioptname = scm_to_int (optname); | |
0f2d19dd | 514 | |
ee149d03 | 515 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 516 | if (getsockopt (fd, ilevel, ioptname, (void *) &optval, &optlen) == -1) |
1bbd0b84 | 517 | SCM_SYSERROR; |
1cc91f1b | 518 | |
439006bf | 519 | if (ilevel == SOL_SOCKET) |
0f2d19dd | 520 | { |
439006bf GH |
521 | #ifdef SO_LINGER |
522 | if (ioptname == SO_LINGER) | |
523 | { | |
370312ae | 524 | #ifdef HAVE_STRUCT_LINGER |
f43f3620 | 525 | struct linger *ling = (struct linger *) &optval; |
439006bf | 526 | |
b9bd8526 MV |
527 | return scm_cons (scm_from_long (ling->l_onoff), |
528 | scm_from_long (ling->l_linger)); | |
370312ae | 529 | #else |
f43f3620 | 530 | return scm_cons (scm_from_long (*(int *) &optval), |
7cee5b31 | 531 | scm_from_int (0)); |
0f2d19dd | 532 | #endif |
439006bf GH |
533 | } |
534 | else | |
370312ae | 535 | #endif |
439006bf | 536 | if (0 |
370312ae | 537 | #ifdef SO_SNDBUF |
439006bf | 538 | || ioptname == SO_SNDBUF |
370312ae GH |
539 | #endif |
540 | #ifdef SO_RCVBUF | |
439006bf | 541 | || ioptname == SO_RCVBUF |
370312ae | 542 | #endif |
439006bf GH |
543 | ) |
544 | { | |
f43f3620 | 545 | return scm_from_size_t (*(size_t *) &optval); |
439006bf GH |
546 | } |
547 | } | |
f43f3620 | 548 | return scm_from_int (*(int *) &optval); |
0f2d19dd | 549 | } |
1bbd0b84 | 550 | #undef FUNC_NAME |
0f2d19dd | 551 | |
a1ec6916 | 552 | SCM_DEFINE (scm_setsockopt, "setsockopt", 4, 0, 0, |
1bbd0b84 | 553 | (SCM sock, SCM level, SCM optname, SCM value), |
72e3dae1 KR |
554 | "Set an option on socket port @var{sock}. The return value is\n" |
555 | "unspecified.\n" | |
556 | "\n" | |
557 | "@var{level} is an integer specifying a protocol layer, either\n" | |
558 | "@code{SOL_SOCKET} for socket level options, or a protocol\n" | |
559 | "number from the @code{IPPROTO} constants or @code{getprotoent}\n" | |
560 | "(@pxref{Network Databases}).\n" | |
561 | "\n" | |
562 | "@defvar SOL_SOCKET\n" | |
563 | "@defvarx IPPROTO_IP\n" | |
564 | "@defvarx IPPROTO_TCP\n" | |
565 | "@defvarx IPPROTO_UDP\n" | |
566 | "@end defvar\n" | |
567 | "\n" | |
568 | "@var{optname} is an integer specifying an option within the\n" | |
569 | "protocol layer.\n" | |
570 | "\n" | |
571 | "For @code{SOL_SOCKET} level the following @var{optname}s are\n" | |
572 | "defined (when provided by the system). For their meaning see\n" | |
573 | "@ref{Socket-Level Options,,, libc, The GNU C Library Reference\n" | |
574 | "Manual}, or @command{man 7 socket}.\n" | |
575 | "\n" | |
576 | "@defvar SO_DEBUG\n" | |
577 | "@defvarx SO_REUSEADDR\n" | |
578 | "@defvarx SO_STYLE\n" | |
579 | "@defvarx SO_TYPE\n" | |
580 | "@defvarx SO_ERROR\n" | |
581 | "@defvarx SO_DONTROUTE\n" | |
582 | "@defvarx SO_BROADCAST\n" | |
583 | "@defvarx SO_SNDBUF\n" | |
584 | "@defvarx SO_RCVBUF\n" | |
585 | "@defvarx SO_KEEPALIVE\n" | |
586 | "@defvarx SO_OOBINLINE\n" | |
587 | "@defvarx SO_NO_CHECK\n" | |
588 | "@defvarx SO_PRIORITY\n" | |
589 | "@var{value} is an integer.\n" | |
590 | "@end defvar\n" | |
591 | "\n" | |
592 | "@defvar SO_LINGER\n" | |
593 | "@var{value} is a pair of integers @code{(@var{ENABLE}\n" | |
594 | ". @var{TIMEOUT})}. On old systems without timeout support\n" | |
595 | "(ie.@: without @code{struct linger}), only @var{ENABLE} has an\n" | |
596 | "effect but the value in Guile is always a pair.\n" | |
597 | "@end defvar\n" | |
598 | "\n" | |
599 | "@c Note that we refer only to ``man ip'' here. On GNU/Linux it's\n" | |
600 | "@c ``man 7 ip'' but on NetBSD it's ``man 4 ip''.\n" | |
601 | "@c \n" | |
602 | "For IP level (@code{IPPROTO_IP}) the following @var{optname}s\n" | |
603 | "are defined (when provided by the system). See @command{man\n" | |
604 | "ip} for what they mean.\n" | |
605 | "\n" | |
606 | "@defvar IP_ADD_MEMBERSHIP\n" | |
607 | "@defvarx IP_DROP_MEMBERSHIP\n" | |
608 | "These can be used only with @code{setsockopt}, not\n" | |
609 | "@code{getsockopt}. @var{value} is a pair\n" | |
610 | "@code{(@var{MULTIADDR} . @var{INTERFACEADDR})} of IPv4\n" | |
611 | "addresses (@pxref{Network Address Conversion}).\n" | |
612 | "@var{MULTIADDR} is a multicast address to be added to or\n" | |
613 | "dropped from the interface @var{INTERFACEADDR}.\n" | |
614 | "@var{INTERFACEADDR} can be @code{INADDR_ANY} to have the system\n" | |
615 | "select the interface. @var{INTERFACEADDR} can also be an\n" | |
f1b7209b KR |
616 | "interface index number, on systems supporting that.\n" |
617 | "@end defvar") | |
1bbd0b84 | 618 | #define FUNC_NAME s_scm_setsockopt |
0f2d19dd | 619 | { |
370312ae | 620 | int fd; |
1c80707c MV |
621 | |
622 | int opt_int; | |
370312ae | 623 | #ifdef HAVE_STRUCT_LINGER |
1c80707c | 624 | struct linger opt_linger; |
370312ae | 625 | #endif |
ecc9f40f MV |
626 | |
627 | #if HAVE_STRUCT_IP_MREQ | |
1c80707c | 628 | struct ip_mreq opt_mreq; |
ecc9f40f | 629 | #endif |
1c80707c MV |
630 | |
631 | const void *optval = NULL; | |
632 | socklen_t optlen = 0; | |
633 | ||
370312ae | 634 | int ilevel, ioptname; |
439006bf | 635 | |
78446828 | 636 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf GH |
637 | |
638 | SCM_VALIDATE_OPFPORT (1, sock); | |
7cee5b31 MV |
639 | ilevel = scm_to_int (level); |
640 | ioptname = scm_to_int (optname); | |
439006bf | 641 | |
ee149d03 | 642 | fd = SCM_FPORT_FDES (sock); |
1c80707c | 643 | |
439006bf | 644 | if (ilevel == SOL_SOCKET) |
370312ae | 645 | { |
439006bf GH |
646 | #ifdef SO_LINGER |
647 | if (ioptname == SO_LINGER) | |
648 | { | |
370312ae | 649 | #ifdef HAVE_STRUCT_LINGER |
d2e53ed6 | 650 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c MV |
651 | opt_linger.l_onoff = scm_to_int (SCM_CAR (value)); |
652 | opt_linger.l_linger = scm_to_int (SCM_CDR (value)); | |
653 | optlen = sizeof (struct linger); | |
654 | optval = &opt_linger; | |
370312ae | 655 | #else |
d2e53ed6 | 656 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c | 657 | opt_int = scm_to_int (SCM_CAR (value)); |
439006bf | 658 | /* timeout is ignored, but may as well validate it. */ |
1c80707c MV |
659 | scm_to_int (SCM_CDR (value)); |
660 | optlen = sizeof (int); | |
661 | optval = &opt_int; | |
439006bf GH |
662 | #endif |
663 | } | |
664 | else | |
665 | #endif | |
666 | if (0 | |
370312ae | 667 | #ifdef SO_SNDBUF |
439006bf | 668 | || ioptname == SO_SNDBUF |
370312ae GH |
669 | #endif |
670 | #ifdef SO_RCVBUF | |
439006bf | 671 | || ioptname == SO_RCVBUF |
370312ae | 672 | #endif |
439006bf GH |
673 | ) |
674 | { | |
1c80707c MV |
675 | opt_int = scm_to_int (value); |
676 | optlen = sizeof (size_t); | |
677 | optval = &opt_int; | |
439006bf GH |
678 | } |
679 | } | |
1c80707c | 680 | |
ecc9f40f | 681 | #if HAVE_STRUCT_IP_MREQ |
1c80707c MV |
682 | if (ilevel == IPPROTO_IP && |
683 | (ioptname == IP_ADD_MEMBERSHIP || ioptname == IP_DROP_MEMBERSHIP)) | |
0f2d19dd | 684 | { |
1c80707c MV |
685 | /* Fourth argument must be a pair of addresses. */ |
686 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); | |
687 | opt_mreq.imr_multiaddr.s_addr = htonl (scm_to_ulong (SCM_CAR (value))); | |
688 | opt_mreq.imr_interface.s_addr = htonl (scm_to_ulong (SCM_CDR (value))); | |
689 | optlen = sizeof (opt_mreq); | |
690 | optval = &opt_mreq; | |
691 | } | |
ecc9f40f | 692 | #endif |
439006bf | 693 | |
1c80707c MV |
694 | if (optval == NULL) |
695 | { | |
696 | /* Most options take an int. */ | |
697 | opt_int = scm_to_int (value); | |
698 | optlen = sizeof (int); | |
699 | optval = &opt_int; | |
0f2d19dd | 700 | } |
1c80707c MV |
701 | |
702 | if (setsockopt (fd, ilevel, ioptname, optval, optlen) == -1) | |
1bbd0b84 | 703 | SCM_SYSERROR; |
370312ae | 704 | return SCM_UNSPECIFIED; |
0f2d19dd | 705 | } |
1bbd0b84 | 706 | #undef FUNC_NAME |
0f2d19dd | 707 | |
a1ec6916 | 708 | SCM_DEFINE (scm_shutdown, "shutdown", 2, 0, 0, |
1bbd0b84 | 709 | (SCM sock, SCM how), |
b380b885 | 710 | "Sockets can be closed simply by using @code{close-port}. The\n" |
bb2c02f2 | 711 | "@code{shutdown} procedure allows reception or transmission on a\n" |
b380b885 MD |
712 | "connection to be shut down individually, according to the parameter\n" |
713 | "@var{how}:\n\n" | |
714 | "@table @asis\n" | |
715 | "@item 0\n" | |
716 | "Stop receiving data for this socket. If further data arrives, reject it.\n" | |
717 | "@item 1\n" | |
718 | "Stop trying to transmit data from this socket. Discard any\n" | |
719 | "data waiting to be sent. Stop looking for acknowledgement of\n" | |
720 | "data already sent; don't retransmit it if it is lost.\n" | |
721 | "@item 2\n" | |
722 | "Stop both reception and transmission.\n" | |
723 | "@end table\n\n" | |
724 | "The return value is unspecified.") | |
1bbd0b84 | 725 | #define FUNC_NAME s_scm_shutdown |
0f2d19dd | 726 | { |
370312ae | 727 | int fd; |
78446828 | 728 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 729 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 730 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 731 | if (shutdown (fd, scm_to_signed_integer (how, 0, 2)) == -1) |
1bbd0b84 | 732 | SCM_SYSERROR; |
370312ae GH |
733 | return SCM_UNSPECIFIED; |
734 | } | |
1bbd0b84 | 735 | #undef FUNC_NAME |
0f2d19dd | 736 | |
370312ae GH |
737 | /* convert fam/address/args into a sockaddr of the appropriate type. |
738 | args is modified by removing the arguments actually used. | |
739 | which_arg and proc are used when reporting errors: | |
740 | which_arg is the position of address in the original argument list. | |
741 | proc is the name of the original procedure. | |
742 | size returns the size of the structure allocated. */ | |
743 | ||
bc732342 | 744 | static struct sockaddr * |
439006bf | 745 | scm_fill_sockaddr (int fam, SCM address, SCM *args, int which_arg, |
9c0129ac | 746 | const char *proc, size_t *size) |
3453619b | 747 | #define FUNC_NAME proc |
370312ae GH |
748 | { |
749 | switch (fam) | |
0f2d19dd | 750 | { |
370312ae GH |
751 | case AF_INET: |
752 | { | |
370312ae | 753 | struct sockaddr_in *soka; |
3453619b GH |
754 | unsigned long addr; |
755 | int port; | |
370312ae | 756 | |
3453619b GH |
757 | SCM_VALIDATE_ULONG_COPY (which_arg, address, addr); |
758 | SCM_VALIDATE_CONS (which_arg + 1, *args); | |
7cee5b31 | 759 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 760 | *args = SCM_CDR (*args); |
67329a9e | 761 | soka = (struct sockaddr_in *) scm_malloc (sizeof (struct sockaddr_in)); |
9c0129ac | 762 | |
93b047f4 | 763 | #if HAVE_STRUCT_SOCKADDR_SIN_LEN |
3453619b GH |
764 | soka->sin_len = sizeof (struct sockaddr_in); |
765 | #endif | |
370312ae | 766 | soka->sin_family = AF_INET; |
3453619b GH |
767 | soka->sin_addr.s_addr = htonl (addr); |
768 | soka->sin_port = htons (port); | |
370312ae GH |
769 | *size = sizeof (struct sockaddr_in); |
770 | return (struct sockaddr *) soka; | |
771 | } | |
a57a0b1e | 772 | #ifdef HAVE_IPV6 |
3453619b GH |
773 | case AF_INET6: |
774 | { | |
775 | /* see RFC2553. */ | |
776 | int port; | |
777 | struct sockaddr_in6 *soka; | |
778 | unsigned long flowinfo = 0; | |
779 | unsigned long scope_id = 0; | |
780 | ||
3453619b | 781 | SCM_VALIDATE_CONS (which_arg + 1, *args); |
7cee5b31 | 782 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 783 | *args = SCM_CDR (*args); |
d2e53ed6 | 784 | if (scm_is_pair (*args)) |
3453619b GH |
785 | { |
786 | SCM_VALIDATE_ULONG_COPY (which_arg + 2, SCM_CAR (*args), flowinfo); | |
787 | *args = SCM_CDR (*args); | |
d2e53ed6 | 788 | if (scm_is_pair (*args)) |
3453619b GH |
789 | { |
790 | SCM_VALIDATE_ULONG_COPY (which_arg + 3, SCM_CAR (*args), | |
791 | scope_id); | |
792 | *args = SCM_CDR (*args); | |
793 | } | |
794 | } | |
67329a9e | 795 | soka = (struct sockaddr_in6 *) scm_malloc (sizeof (struct sockaddr_in6)); |
9c0129ac | 796 | |
93b047f4 | 797 | #if HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN |
3453619b GH |
798 | soka->sin6_len = sizeof (struct sockaddr_in6); |
799 | #endif | |
800 | soka->sin6_family = AF_INET6; | |
7cee5b31 | 801 | scm_to_ipv6 (soka->sin6_addr.s6_addr, address); |
5a525b84 | 802 | soka->sin6_port = htons (port); |
3453619b | 803 | soka->sin6_flowinfo = flowinfo; |
5a525b84 | 804 | #ifdef HAVE_SIN6_SCOPE_ID |
3453619b | 805 | soka->sin6_scope_id = scope_id; |
5a525b84 | 806 | #endif |
3453619b GH |
807 | *size = sizeof (struct sockaddr_in6); |
808 | return (struct sockaddr *) soka; | |
809 | } | |
810 | #endif | |
1ba8c23a | 811 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
370312ae GH |
812 | case AF_UNIX: |
813 | { | |
814 | struct sockaddr_un *soka; | |
439006bf | 815 | int addr_size; |
7f9994d9 MV |
816 | char *c_address; |
817 | ||
661ae7ab | 818 | scm_dynwind_begin (0); |
7f9994d9 MV |
819 | |
820 | c_address = scm_to_locale_string (address); | |
661ae7ab | 821 | scm_dynwind_free (c_address); |
370312ae | 822 | |
439006bf GH |
823 | /* the static buffer size in sockaddr_un seems to be arbitrary |
824 | and not necessarily a hard limit. e.g., the glibc manual | |
825 | suggests it may be possible to declare it size 0. let's | |
826 | ignore it. if the O/S doesn't like the size it will cause | |
827 | connect/bind etc., to fail. sun_path is always the last | |
828 | member of the structure. */ | |
829 | addr_size = sizeof (struct sockaddr_un) | |
7f9994d9 | 830 | + max (0, strlen (c_address) + 1 - (sizeof soka->sun_path)); |
67329a9e | 831 | soka = (struct sockaddr_un *) scm_malloc (addr_size); |
439006bf GH |
832 | memset (soka, 0, addr_size); /* for sun_len: see sin_len above. */ |
833 | soka->sun_family = AF_UNIX; | |
7f9994d9 | 834 | strcpy (soka->sun_path, c_address); |
439006bf | 835 | *size = SUN_LEN (soka); |
7f9994d9 | 836 | |
661ae7ab | 837 | scm_dynwind_end (); |
370312ae GH |
838 | return (struct sockaddr *) soka; |
839 | } | |
0e958795 | 840 | #endif |
370312ae | 841 | default: |
e11e83f3 | 842 | scm_out_of_range (proc, scm_from_int (fam)); |
0f2d19dd | 843 | } |
0f2d19dd | 844 | } |
3453619b | 845 | #undef FUNC_NAME |
9c0129ac KR |
846 | |
847 | SCM_DEFINE (scm_connect, "connect", 2, 1, 1, | |
848 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 849 | "Initiate a connection from a socket using a specified address\n" |
3453619b GH |
850 | "family to the address\n" |
851 | "specified by @var{address} and possibly @var{args}.\n" | |
852 | "The format required for @var{address}\n" | |
853 | "and @var{args} depends on the family of the socket.\n\n" | |
b380b885 | 854 | "For a socket of family @code{AF_UNIX},\n" |
3453619b | 855 | "only @var{address} is specified and must be a string with the\n" |
b380b885 MD |
856 | "filename where the socket is to be created.\n\n" |
857 | "For a socket of family @code{AF_INET},\n" | |
3453619b GH |
858 | "@var{address} must be an integer IPv4 host address and\n" |
859 | "@var{args} must be a single integer port number.\n\n" | |
860 | "For a socket of family @code{AF_INET6},\n" | |
861 | "@var{address} must be an integer IPv6 host address and\n" | |
862 | "@var{args} may be up to three integers:\n" | |
863 | "port [flowinfo] [scope_id],\n" | |
864 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
865 | "Alternatively, the second argument can be a socket address object " |
866 | "as returned by @code{make-socket-address}, in which case the " | |
867 | "no additional arguments should be passed.\n\n" | |
b380b885 | 868 | "The return value is unspecified.") |
1bbd0b84 | 869 | #define FUNC_NAME s_scm_connect |
0f2d19dd | 870 | { |
370312ae GH |
871 | int fd; |
872 | struct sockaddr *soka; | |
9c0129ac | 873 | size_t size; |
0f2d19dd | 874 | |
78446828 | 875 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 876 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 877 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
878 | |
879 | if (address == SCM_UNDEFINED) | |
880 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a | |
881 | `socket address' object. */ | |
882 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
883 | else | |
884 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
885 | &args, 3, FUNC_NAME, &size); | |
886 | ||
370312ae | 887 | if (connect (fd, soka, size) == -1) |
439006bf GH |
888 | { |
889 | int save_errno = errno; | |
9c0129ac | 890 | |
439006bf GH |
891 | free (soka); |
892 | errno = save_errno; | |
893 | SCM_SYSERROR; | |
894 | } | |
895 | free (soka); | |
370312ae | 896 | return SCM_UNSPECIFIED; |
0f2d19dd | 897 | } |
1bbd0b84 | 898 | #undef FUNC_NAME |
0f2d19dd | 899 | |
9c0129ac KR |
900 | SCM_DEFINE (scm_bind, "bind", 2, 1, 1, |
901 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 902 | "Assign an address to the socket port @var{sock}.\n" |
b380b885 MD |
903 | "Generally this only needs to be done for server sockets,\n" |
904 | "so they know where to look for incoming connections. A socket\n" | |
905 | "without an address will be assigned one automatically when it\n" | |
906 | "starts communicating.\n\n" | |
eefae538 GH |
907 | "The format of @var{address} and @var{args} depends\n" |
908 | "on the family of the socket.\n\n" | |
b380b885 | 909 | "For a socket of family @code{AF_UNIX}, only @var{address}\n" |
eefae538 GH |
910 | "is specified and must be a string with the filename where\n" |
911 | "the socket is to be created.\n\n" | |
912 | "For a socket of family @code{AF_INET}, @var{address}\n" | |
913 | "must be an integer IPv4 address and @var{args}\n" | |
914 | "must be a single integer port number.\n\n" | |
915 | "The values of the following variables can also be used for\n" | |
916 | "@var{address}:\n\n" | |
b380b885 MD |
917 | "@defvar INADDR_ANY\n" |
918 | "Allow connections from any address.\n" | |
919 | "@end defvar\n\n" | |
920 | "@defvar INADDR_LOOPBACK\n" | |
921 | "The address of the local host using the loopback device.\n" | |
922 | "@end defvar\n\n" | |
923 | "@defvar INADDR_BROADCAST\n" | |
924 | "The broadcast address on the local network.\n" | |
925 | "@end defvar\n\n" | |
926 | "@defvar INADDR_NONE\n" | |
927 | "No address.\n" | |
928 | "@end defvar\n\n" | |
eefae538 GH |
929 | "For a socket of family @code{AF_INET6}, @var{address}\n" |
930 | "must be an integer IPv6 address and @var{args}\n" | |
931 | "may be up to three integers:\n" | |
932 | "port [flowinfo] [scope_id],\n" | |
933 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
934 | "Alternatively, the second argument can be a socket address object " |
935 | "as returned by @code{make-socket-address}, in which case the " | |
936 | "no additional arguments should be passed.\n\n" | |
b380b885 | 937 | "The return value is unspecified.") |
1bbd0b84 | 938 | #define FUNC_NAME s_scm_bind |
370312ae | 939 | { |
370312ae | 940 | struct sockaddr *soka; |
9c0129ac | 941 | size_t size; |
370312ae GH |
942 | int fd; |
943 | ||
78446828 | 944 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 945 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 946 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
947 | |
948 | if (address == SCM_UNDEFINED) | |
949 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a | |
950 | `socket address' object. */ | |
951 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
952 | else | |
953 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
954 | &args, 3, FUNC_NAME, &size); | |
955 | ||
956 | ||
439006bf GH |
957 | if (bind (fd, soka, size) == -1) |
958 | { | |
959 | int save_errno = errno; | |
9c0129ac | 960 | |
439006bf GH |
961 | free (soka); |
962 | errno = save_errno; | |
1bbd0b84 | 963 | SCM_SYSERROR; |
439006bf GH |
964 | } |
965 | free (soka); | |
370312ae GH |
966 | return SCM_UNSPECIFIED; |
967 | } | |
1bbd0b84 | 968 | #undef FUNC_NAME |
370312ae | 969 | |
a1ec6916 | 970 | SCM_DEFINE (scm_listen, "listen", 2, 0, 0, |
1bbd0b84 | 971 | (SCM sock, SCM backlog), |
eefae538 | 972 | "Enable @var{sock} to accept connection\n" |
b380b885 MD |
973 | "requests. @var{backlog} is an integer specifying\n" |
974 | "the maximum length of the queue for pending connections.\n" | |
eefae538 GH |
975 | "If the queue fills, new clients will fail to connect until\n" |
976 | "the server calls @code{accept} to accept a connection from\n" | |
977 | "the queue.\n\n" | |
b380b885 | 978 | "The return value is unspecified.") |
1bbd0b84 | 979 | #define FUNC_NAME s_scm_listen |
370312ae GH |
980 | { |
981 | int fd; | |
78446828 | 982 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 983 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 984 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 985 | if (listen (fd, scm_to_int (backlog)) == -1) |
1bbd0b84 | 986 | SCM_SYSERROR; |
370312ae GH |
987 | return SCM_UNSPECIFIED; |
988 | } | |
1bbd0b84 | 989 | #undef FUNC_NAME |
370312ae GH |
990 | |
991 | /* Put the components of a sockaddr into a new SCM vector. */ | |
9c0129ac | 992 | static SCM_C_INLINE_KEYWORD SCM |
f43f3620 LC |
993 | _scm_from_sockaddr (const scm_t_max_sockaddr *address, unsigned addr_size, |
994 | const char *proc) | |
0f2d19dd | 995 | { |
f43f3620 LC |
996 | SCM result = SCM_EOL; |
997 | short int fam = ((struct sockaddr *) address)->sa_family; | |
439006bf | 998 | |
5a525b84 | 999 | switch (fam) |
0f2d19dd | 1000 | { |
5a525b84 GH |
1001 | case AF_INET: |
1002 | { | |
e1368a8d | 1003 | const struct sockaddr_in *nad = (struct sockaddr_in *) address; |
439006bf | 1004 | |
1d1559ce | 1005 | result = scm_c_make_vector (3, SCM_UNSPECIFIED); |
34d19ef6 | 1006 | |
4057a3e0 MV |
1007 | SCM_SIMPLE_VECTOR_SET(result, 0, |
1008 | scm_from_short (fam)); | |
1009 | SCM_SIMPLE_VECTOR_SET(result, 1, | |
1010 | scm_from_ulong (ntohl (nad->sin_addr.s_addr))); | |
1011 | SCM_SIMPLE_VECTOR_SET(result, 2, | |
1012 | scm_from_ushort (ntohs (nad->sin_port))); | |
5a525b84 GH |
1013 | } |
1014 | break; | |
a57a0b1e | 1015 | #ifdef HAVE_IPV6 |
5a525b84 GH |
1016 | case AF_INET6: |
1017 | { | |
e1368a8d | 1018 | const struct sockaddr_in6 *nad = (struct sockaddr_in6 *) address; |
5a525b84 | 1019 | |
1d1559ce | 1020 | result = scm_c_make_vector (5, SCM_UNSPECIFIED); |
4057a3e0 MV |
1021 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
1022 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_ipv6 (nad->sin6_addr.s6_addr)); | |
1023 | SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ushort (ntohs (nad->sin6_port))); | |
1024 | SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_uint32 (nad->sin6_flowinfo)); | |
5a525b84 | 1025 | #ifdef HAVE_SIN6_SCOPE_ID |
4057a3e0 | 1026 | SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_ulong (nad->sin6_scope_id)); |
5a525b84 | 1027 | #else |
4057a3e0 | 1028 | SCM_SIMPLE_VECTOR_SET(result, 4, SCM_INUM0); |
0e958795 | 1029 | #endif |
5a525b84 GH |
1030 | } |
1031 | break; | |
1032 | #endif | |
1033 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1034 | case AF_UNIX: | |
1035 | { | |
e1368a8d | 1036 | const struct sockaddr_un *nad = (struct sockaddr_un *) address; |
439006bf | 1037 | |
1d1559ce | 1038 | result = scm_c_make_vector (2, SCM_UNSPECIFIED); |
34d19ef6 | 1039 | |
4057a3e0 | 1040 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
aca23b65 MV |
1041 | /* When addr_size is not enough to cover sun_path, do not try |
1042 | to access it. */ | |
1043 | if (addr_size <= offsetof (struct sockaddr_un, sun_path)) | |
4057a3e0 | 1044 | SCM_SIMPLE_VECTOR_SET(result, 1, SCM_BOOL_F); |
aca23b65 | 1045 | else |
4057a3e0 | 1046 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (nad->sun_path)); |
5a525b84 GH |
1047 | } |
1048 | break; | |
1049 | #endif | |
1050 | default: | |
9c0129ac KR |
1051 | result = SCM_UNSPECIFIED; |
1052 | scm_misc_error (proc, "unrecognised address family: ~A", | |
e11e83f3 | 1053 | scm_list_1 (scm_from_int (fam))); |
9c0129ac | 1054 | |
0f2d19dd | 1055 | } |
1d1559ce | 1056 | return result; |
370312ae GH |
1057 | } |
1058 | ||
9c0129ac KR |
1059 | /* The publicly-visible function. Return a Scheme object representing |
1060 | ADDRESS, an address of ADDR_SIZE bytes. */ | |
1061 | SCM | |
1062 | scm_from_sockaddr (const struct sockaddr *address, unsigned addr_size) | |
1063 | { | |
f43f3620 LC |
1064 | return (_scm_from_sockaddr ((scm_t_max_sockaddr *) address, |
1065 | addr_size, "scm_from_sockaddr")); | |
9c0129ac KR |
1066 | } |
1067 | ||
1068 | /* Convert ADDRESS, an address object returned by either | |
1069 | `scm_from_sockaddr ()' or `scm_make_socket_address ()', into its C | |
1070 | representation. On success, a non-NULL pointer is returned and | |
1071 | ADDRESS_SIZE is updated to the actual size (in bytes) of the returned | |
1072 | address. The result must eventually be freed using `free ()'. */ | |
1073 | struct sockaddr * | |
1074 | scm_to_sockaddr (SCM address, size_t *address_size) | |
1075 | #define FUNC_NAME "scm_to_sockaddr" | |
1076 | { | |
1077 | short int family; | |
1078 | struct sockaddr *c_address = NULL; | |
1079 | ||
1080 | SCM_VALIDATE_VECTOR (1, address); | |
1081 | ||
1082 | *address_size = 0; | |
1083 | family = scm_to_short (SCM_SIMPLE_VECTOR_REF (address, 0)); | |
1084 | ||
1085 | switch (family) | |
1086 | { | |
1087 | case AF_INET: | |
1088 | { | |
1089 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 3) | |
1090 | scm_misc_error (FUNC_NAME, | |
1091 | "invalid inet address representation: ~A", | |
1092 | scm_list_1 (address)); | |
1093 | else | |
1094 | { | |
1095 | struct sockaddr_in c_inet; | |
1096 | ||
1097 | c_inet.sin_addr.s_addr = | |
1098 | htonl (scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 1))); | |
1099 | c_inet.sin_port = | |
1100 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1101 | c_inet.sin_family = AF_INET; | |
1102 | ||
1103 | *address_size = sizeof (c_inet); | |
1104 | c_address = scm_malloc (sizeof (c_inet)); | |
1105 | memcpy (c_address, &c_inet, sizeof (c_inet)); | |
1106 | } | |
1107 | ||
1108 | break; | |
1109 | } | |
1110 | ||
1111 | #ifdef HAVE_IPV6 | |
1112 | case AF_INET6: | |
1113 | { | |
1114 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 5) | |
1115 | scm_misc_error (FUNC_NAME, "invalid inet6 address representation: ~A", | |
1116 | scm_list_1 (address)); | |
1117 | else | |
1118 | { | |
1119 | struct sockaddr_in6 c_inet6; | |
1120 | ||
1ff4da65 NJ |
1121 | scm_to_ipv6 (c_inet6.sin6_addr.s6_addr, |
1122 | SCM_SIMPLE_VECTOR_REF (address, 1)); | |
9c0129ac KR |
1123 | c_inet6.sin6_port = |
1124 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1125 | c_inet6.sin6_flowinfo = | |
1126 | scm_to_uint32 (SCM_SIMPLE_VECTOR_REF (address, 3)); | |
1127 | #ifdef HAVE_SIN6_SCOPE_ID | |
1128 | c_inet6.sin6_scope_id = | |
1129 | scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 4)); | |
1130 | #endif | |
1131 | ||
1132 | c_inet6.sin6_family = AF_INET6; | |
1133 | ||
1134 | *address_size = sizeof (c_inet6); | |
1135 | c_address = scm_malloc (sizeof (c_inet6)); | |
1136 | memcpy (c_address, &c_inet6, sizeof (c_inet6)); | |
1137 | } | |
1138 | ||
1139 | break; | |
1140 | } | |
1141 | #endif | |
1142 | ||
1143 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1144 | case AF_UNIX: | |
1145 | { | |
1146 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 2) | |
1147 | scm_misc_error (FUNC_NAME, "invalid unix address representation: ~A", | |
1148 | scm_list_1 (address)); | |
1149 | else | |
1150 | { | |
1151 | SCM path; | |
1152 | size_t path_len = 0; | |
1153 | ||
1154 | path = SCM_SIMPLE_VECTOR_REF (address, 1); | |
1155 | if ((!scm_is_string (path)) && (path != SCM_BOOL_F)) | |
1156 | scm_misc_error (FUNC_NAME, "invalid unix address " | |
1157 | "path: ~A", scm_list_1 (path)); | |
1158 | else | |
1159 | { | |
1160 | struct sockaddr_un c_unix; | |
1161 | ||
1162 | if (path == SCM_BOOL_F) | |
1163 | path_len = 0; | |
1164 | else | |
1165 | path_len = scm_c_string_length (path); | |
1166 | ||
1167 | #ifdef UNIX_PATH_MAX | |
1168 | if (path_len >= UNIX_PATH_MAX) | |
1169 | #else | |
1170 | /* We can hope that this limit will eventually vanish, at least on GNU. | |
1171 | However, currently, while glibc doesn't define `UNIX_PATH_MAX', it | |
1172 | documents it has being limited to 108 bytes. */ | |
1173 | if (path_len >= sizeof (c_unix.sun_path)) | |
1174 | #endif | |
1175 | scm_misc_error (FUNC_NAME, "unix address path " | |
1176 | "too long: ~A", scm_list_1 (path)); | |
1177 | else | |
1178 | { | |
1179 | if (path_len) | |
1180 | { | |
1181 | scm_to_locale_stringbuf (path, c_unix.sun_path, | |
1182 | #ifdef UNIX_PATH_MAX | |
1183 | UNIX_PATH_MAX); | |
1184 | #else | |
1185 | sizeof (c_unix.sun_path)); | |
1186 | #endif | |
1187 | c_unix.sun_path[path_len] = '\0'; | |
1188 | ||
1189 | /* Sanity check. */ | |
1190 | if (strlen (c_unix.sun_path) != path_len) | |
1191 | scm_misc_error (FUNC_NAME, "unix address path " | |
1192 | "contains nul characters: ~A", | |
1193 | scm_list_1 (path)); | |
1194 | } | |
1195 | else | |
1196 | c_unix.sun_path[0] = '\0'; | |
1197 | ||
1198 | c_unix.sun_family = AF_UNIX; | |
1199 | ||
1200 | *address_size = SUN_LEN (&c_unix); | |
1201 | c_address = scm_malloc (sizeof (c_unix)); | |
1202 | memcpy (c_address, &c_unix, sizeof (c_unix)); | |
1203 | } | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | break; | |
1208 | } | |
1209 | #endif | |
1210 | ||
1211 | default: | |
1212 | scm_misc_error (FUNC_NAME, "unrecognised address family: ~A", | |
1213 | scm_list_1 (scm_from_ushort (family))); | |
1214 | } | |
1215 | ||
1216 | return c_address; | |
1217 | } | |
1218 | #undef FUNC_NAME | |
1219 | ||
1220 | ||
1221 | /* Return a newly-allocated `sockaddr' structure that reflects ADDRESS, being | |
1222 | an address of family FAMILY, with the family-specific parameters ARGS (see | |
1223 | the description of `connect' for details). The returned structure may be | |
1224 | freed using `free ()'. */ | |
1225 | struct sockaddr * | |
1226 | scm_c_make_socket_address (SCM family, SCM address, SCM args, | |
1227 | size_t *address_size) | |
1228 | { | |
9c0129ac KR |
1229 | struct sockaddr *soka; |
1230 | ||
1231 | soka = scm_fill_sockaddr (scm_to_ushort (family), address, &args, 1, | |
d7c6575f | 1232 | "scm_c_make_socket_address", address_size); |
9c0129ac KR |
1233 | |
1234 | return soka; | |
1235 | } | |
1236 | ||
1237 | SCM_DEFINE (scm_make_socket_address, "make-socket-address", 2, 0, 1, | |
1238 | (SCM family, SCM address, SCM args), | |
1239 | "Return a Scheme address object that reflects @var{address}, " | |
1240 | "being an address of family @var{family}, with the " | |
1241 | "family-specific parameters @var{args} (see the description of " | |
1242 | "@code{connect} for details).") | |
1243 | #define FUNC_NAME s_scm_make_socket_address | |
1244 | { | |
1ac5fb45 | 1245 | SCM result = SCM_BOOL_F; |
9c0129ac KR |
1246 | struct sockaddr *c_address; |
1247 | size_t c_address_size; | |
1248 | ||
1249 | c_address = scm_c_make_socket_address (family, address, args, | |
1250 | &c_address_size); | |
1ac5fb45 LC |
1251 | if (c_address != NULL) |
1252 | { | |
1253 | result = scm_from_sockaddr (c_address, c_address_size); | |
1254 | free (c_address); | |
1255 | } | |
9c0129ac | 1256 | |
1ac5fb45 | 1257 | return result; |
9c0129ac KR |
1258 | } |
1259 | #undef FUNC_NAME | |
1260 | ||
1261 | \f | |
a1ec6916 | 1262 | SCM_DEFINE (scm_accept, "accept", 1, 0, 0, |
1bbd0b84 | 1263 | (SCM sock), |
eefae538 GH |
1264 | "Accept a connection on a bound, listening socket.\n" |
1265 | "If there\n" | |
1266 | "are no pending connections in the queue, wait until\n" | |
1267 | "one is available unless the non-blocking option has been\n" | |
1268 | "set on the socket.\n\n" | |
b380b885 | 1269 | "The return value is a\n" |
eefae538 GH |
1270 | "pair in which the @emph{car} is a new socket port for the\n" |
1271 | "connection and\n" | |
1272 | "the @emph{cdr} is an object with address information about the\n" | |
1273 | "client which initiated the connection.\n\n" | |
1274 | "@var{sock} does not become part of the\n" | |
b380b885 | 1275 | "connection and will continue to accept new requests.") |
1bbd0b84 | 1276 | #define FUNC_NAME s_scm_accept |
0f2d19dd | 1277 | { |
7d1fc872 | 1278 | int fd, selected; |
370312ae GH |
1279 | int newfd; |
1280 | SCM address; | |
1281 | SCM newsock; | |
7d1fc872 | 1282 | SELECT_TYPE readfds, exceptfds; |
5ee417fc | 1283 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1284 | scm_t_max_sockaddr addr; |
370312ae | 1285 | |
78446828 | 1286 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 1287 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1288 | fd = SCM_FPORT_FDES (sock); |
7d1fc872 LC |
1289 | |
1290 | FD_ZERO (&readfds); | |
1291 | FD_ZERO (&exceptfds); | |
1292 | FD_SET (fd, &readfds); | |
1293 | FD_SET (fd, &exceptfds); | |
1294 | ||
1295 | /* Block until something happens on FD, leaving guile mode while | |
1296 | waiting. */ | |
1297 | selected = scm_std_select (fd + 1, &readfds, NULL, &exceptfds, | |
1298 | NULL); | |
1299 | if (selected < 0) | |
1300 | SCM_SYSERROR; | |
1301 | ||
f43f3620 | 1302 | newfd = accept (fd, (struct sockaddr *) &addr, &addr_size); |
439006bf GH |
1303 | if (newfd == -1) |
1304 | SCM_SYSERROR; | |
1305 | newsock = SCM_SOCK_FD_TO_PORT (newfd); | |
f43f3620 LC |
1306 | address = _scm_from_sockaddr (&addr, addr_size, |
1307 | FUNC_NAME); | |
1308 | ||
370312ae | 1309 | return scm_cons (newsock, address); |
0f2d19dd | 1310 | } |
1bbd0b84 | 1311 | #undef FUNC_NAME |
0f2d19dd | 1312 | |
a1ec6916 | 1313 | SCM_DEFINE (scm_getsockname, "getsockname", 1, 0, 0, |
1bbd0b84 | 1314 | (SCM sock), |
eefae538 | 1315 | "Return the address of @var{sock}, in the same form as the\n" |
1e6808ea MG |
1316 | "object returned by @code{accept}. On many systems the address\n" |
1317 | "of a socket in the @code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1318 | #define FUNC_NAME s_scm_getsockname |
0f2d19dd | 1319 | { |
370312ae | 1320 | int fd; |
5ee417fc | 1321 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1322 | scm_t_max_sockaddr addr; |
439006bf | 1323 | |
78446828 | 1324 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1325 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1326 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1327 | if (getsockname (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1328 | SCM_SYSERROR; |
f43f3620 LC |
1329 | |
1330 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1331 | } |
1bbd0b84 | 1332 | #undef FUNC_NAME |
0f2d19dd | 1333 | |
a1ec6916 | 1334 | SCM_DEFINE (scm_getpeername, "getpeername", 1, 0, 0, |
1bbd0b84 | 1335 | (SCM sock), |
eefae538 | 1336 | "Return the address that @var{sock}\n" |
1e6808ea MG |
1337 | "is connected to, in the same form as the object returned by\n" |
1338 | "@code{accept}. On many systems the address of a socket in the\n" | |
1339 | "@code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1340 | #define FUNC_NAME s_scm_getpeername |
0f2d19dd | 1341 | { |
370312ae | 1342 | int fd; |
5ee417fc | 1343 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1344 | scm_t_max_sockaddr addr; |
439006bf | 1345 | |
78446828 | 1346 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1347 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1348 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1349 | if (getpeername (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1350 | SCM_SYSERROR; |
f43f3620 LC |
1351 | |
1352 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1353 | } |
1bbd0b84 | 1354 | #undef FUNC_NAME |
0f2d19dd | 1355 | |
a1ec6916 | 1356 | SCM_DEFINE (scm_recv, "recv!", 2, 1, 0, |
1bbd0b84 | 1357 | (SCM sock, SCM buf, SCM flags), |
eefae538 GH |
1358 | "Receive data from a socket port.\n" |
1359 | "@var{sock} must already\n" | |
b380b885 MD |
1360 | "be bound to the address from which data is to be received.\n" |
1361 | "@var{buf} is a string into which\n" | |
eefae538 GH |
1362 | "the data will be written. The size of @var{buf} limits\n" |
1363 | "the amount of\n" | |
b380b885 | 1364 | "data which can be received: in the case of packet\n" |
eefae538 GH |
1365 | "protocols, if a packet larger than this limit is encountered\n" |
1366 | "then some data\n" | |
b380b885 | 1367 | "will be irrevocably lost.\n\n" |
587a3355 MG |
1368 | "The data is assumed to be binary, and there is no decoding of\n" |
1369 | "of locale-encoded strings.\n\n" | |
b380b885 MD |
1370 | "The optional @var{flags} argument is a value or\n" |
1371 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" | |
eefae538 GH |
1372 | "The value returned is the number of bytes read from the\n" |
1373 | "socket.\n\n" | |
1374 | "Note that the data is read directly from the socket file\n" | |
1375 | "descriptor:\n" | |
09831f94 | 1376 | "any unread buffered port data is ignored.") |
1bbd0b84 | 1377 | #define FUNC_NAME s_scm_recv |
0f2d19dd | 1378 | { |
370312ae GH |
1379 | int rv; |
1380 | int fd; | |
1381 | int flg; | |
cc95e00a MV |
1382 | char *dest; |
1383 | size_t len; | |
587a3355 | 1384 | SCM msg; |
370312ae | 1385 | |
34d19ef6 HWN |
1386 | SCM_VALIDATE_OPFPORT (1, sock); |
1387 | SCM_VALIDATE_STRING (2, buf); | |
7cee5b31 MV |
1388 | if (SCM_UNBNDP (flags)) |
1389 | flg = 0; | |
1390 | else | |
1391 | flg = scm_to_int (flags); | |
ee149d03 | 1392 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1393 | |
587a3355 MG |
1394 | len = scm_i_string_length (buf); |
1395 | msg = scm_i_make_string (len, &dest); | |
cc95e00a | 1396 | SCM_SYSCALL (rv = recv (fd, dest, len, flg)); |
587a3355 MG |
1397 | scm_string_copy_x (buf, scm_from_int (0), |
1398 | msg, scm_from_int (0), scm_from_size_t (len)); | |
cc95e00a | 1399 | |
370312ae | 1400 | if (rv == -1) |
1bbd0b84 | 1401 | SCM_SYSERROR; |
370312ae | 1402 | |
587a3355 | 1403 | scm_remember_upto_here_2 (buf, msg); |
7cee5b31 | 1404 | return scm_from_int (rv); |
370312ae | 1405 | } |
1bbd0b84 | 1406 | #undef FUNC_NAME |
370312ae | 1407 | |
a1ec6916 | 1408 | SCM_DEFINE (scm_send, "send", 2, 1, 0, |
1bbd0b84 | 1409 | (SCM sock, SCM message, SCM flags), |
eefae538 GH |
1410 | "Transmit the string @var{message} on a socket port @var{sock}.\n" |
1411 | "@var{sock} must already be bound to a destination address. The\n" | |
1412 | "value returned is the number of bytes transmitted --\n" | |
1413 | "it's possible for\n" | |
1414 | "this to be less than the length of @var{message}\n" | |
1415 | "if the socket is\n" | |
1416 | "set to be non-blocking. The optional @var{flags} argument\n" | |
1417 | "is a value or\n" | |
b380b885 | 1418 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1419 | "Note that the data is written directly to the socket\n" |
1420 | "file descriptor:\n" | |
587a3355 MG |
1421 | "any unflushed buffered port data is ignored.\n\n" |
1422 | "This operation is defined only for strings containing codepoints\n" | |
1423 | "zero to 255.") | |
1bbd0b84 | 1424 | #define FUNC_NAME s_scm_send |
370312ae GH |
1425 | { |
1426 | int rv; | |
1427 | int fd; | |
1428 | int flg; | |
587a3355 | 1429 | char *src; |
cc95e00a | 1430 | size_t len; |
370312ae | 1431 | |
78446828 | 1432 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1433 | SCM_VALIDATE_OPFPORT (1, sock); |
a6d9e5ab | 1434 | SCM_VALIDATE_STRING (2, message); |
587a3355 MG |
1435 | |
1436 | /* If the string is wide, see if it can be coerced into | |
1437 | a narrow string. */ | |
1438 | if (!scm_i_is_narrow_string (message) | |
1439 | || scm_i_try_narrow_string (message)) | |
1440 | SCM_MISC_ERROR ("the message string is not 8-bit: ~s", | |
1441 | scm_list_1 (message)); | |
1442 | ||
7cee5b31 MV |
1443 | if (SCM_UNBNDP (flags)) |
1444 | flg = 0; | |
1445 | else | |
1446 | flg = scm_to_int (flags); | |
ee149d03 | 1447 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1448 | |
cc95e00a | 1449 | len = scm_i_string_length (message); |
9c44cd45 | 1450 | message = scm_i_string_start_writing (message); |
cc95e00a MV |
1451 | src = scm_i_string_writable_chars (message); |
1452 | SCM_SYSCALL (rv = send (fd, src, len, flg)); | |
1453 | scm_i_string_stop_writing (); | |
1454 | ||
370312ae | 1455 | if (rv == -1) |
1bbd0b84 | 1456 | SCM_SYSERROR; |
396e5506 MV |
1457 | |
1458 | scm_remember_upto_here_1 (message); | |
7cee5b31 | 1459 | return scm_from_int (rv); |
370312ae | 1460 | } |
1bbd0b84 | 1461 | #undef FUNC_NAME |
370312ae | 1462 | |
a1ec6916 | 1463 | SCM_DEFINE (scm_recvfrom, "recvfrom!", 2, 3, 0, |
60d02d09 | 1464 | (SCM sock, SCM str, SCM flags, SCM start, SCM end), |
8ab3d8a0 KR |
1465 | "Receive data from socket port @var{sock} (which must be already\n" |
1466 | "bound), returning the originating address as well as the data.\n" | |
1467 | "This is usually for use on datagram sockets, but can be used on\n" | |
1468 | "stream-oriented sockets too.\n" | |
1469 | "\n" | |
1470 | "The data received is stored in the given @var{str}, using\n" | |
1471 | "either the whole string or just the region between the optional\n" | |
1472 | "@var{start} and @var{end} positions. The size of @var{str}\n" | |
1473 | "limits the amount of data which can be received. For datagram\n" | |
1474 | "protocols, if a packet larger than this is received then excess\n" | |
1475 | "bytes are irrevocably lost.\n" | |
1476 | "\n" | |
1477 | "The return value is a pair. The @code{car} is the number of\n" | |
1478 | "bytes read. The @code{cdr} is a socket address object which is\n" | |
1479 | "where the data come from, or @code{#f} if the origin is\n" | |
1480 | "unknown.\n" | |
1481 | "\n" | |
1482 | "The optional @var{flags} argument is a or bitwise OR\n" | |
1483 | "(@code{logior}) of @code{MSG_OOB}, @code{MSG_PEEK},\n" | |
1484 | "@code{MSG_DONTROUTE} etc.\n" | |
1485 | "\n" | |
1486 | "Data is read directly from the socket file descriptor, any\n" | |
1487 | "buffered port data is ignored.\n" | |
1488 | "\n" | |
1489 | "On a GNU/Linux system @code{recvfrom!} is not multi-threading,\n" | |
1490 | "all threads stop while a @code{recvfrom!} call is in progress.\n" | |
1491 | "An application may need to use @code{select}, @code{O_NONBLOCK}\n" | |
1492 | "or @code{MSG_DONTWAIT} to avoid this.") | |
1bbd0b84 | 1493 | #define FUNC_NAME s_scm_recvfrom |
370312ae GH |
1494 | { |
1495 | int rv; | |
1496 | int fd; | |
1497 | int flg; | |
60d02d09 | 1498 | char *buf; |
396e5506 MV |
1499 | size_t offset; |
1500 | size_t cend; | |
370312ae | 1501 | SCM address; |
5ee417fc | 1502 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1503 | scm_t_max_sockaddr addr; |
370312ae | 1504 | |
34d19ef6 | 1505 | SCM_VALIDATE_OPFPORT (1, sock); |
60d02d09 | 1506 | fd = SCM_FPORT_FDES (sock); |
396e5506 MV |
1507 | |
1508 | SCM_VALIDATE_STRING (2, str); | |
cc95e00a | 1509 | scm_i_get_substring_spec (scm_i_string_length (str), |
396e5506 MV |
1510 | start, &offset, end, &cend); |
1511 | ||
1146b6cd GH |
1512 | if (SCM_UNBNDP (flags)) |
1513 | flg = 0; | |
370312ae | 1514 | else |
60d02d09 | 1515 | SCM_VALIDATE_ULONG_COPY (3, flags, flg); |
370312ae | 1516 | |
97d0e20b GH |
1517 | /* recvfrom will not necessarily return an address. usually nothing |
1518 | is returned for stream sockets. */ | |
9c44cd45 | 1519 | str = scm_i_string_start_writing (str); |
cc95e00a | 1520 | buf = scm_i_string_writable_chars (str); |
f43f3620 | 1521 | ((struct sockaddr *) &addr)->sa_family = AF_UNSPEC; |
60d02d09 | 1522 | SCM_SYSCALL (rv = recvfrom (fd, buf + offset, |
1146b6cd | 1523 | cend - offset, flg, |
f43f3620 | 1524 | (struct sockaddr *) &addr, &addr_size)); |
cc95e00a MV |
1525 | scm_i_string_stop_writing (); |
1526 | ||
370312ae | 1527 | if (rv == -1) |
1bbd0b84 | 1528 | SCM_SYSERROR; |
f43f3620 LC |
1529 | if (((struct sockaddr *) &addr)->sa_family != AF_UNSPEC) |
1530 | address = _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
370312ae GH |
1531 | else |
1532 | address = SCM_BOOL_F; | |
1533 | ||
396e5506 | 1534 | scm_remember_upto_here_1 (str); |
f43f3620 | 1535 | |
e11e83f3 | 1536 | return scm_cons (scm_from_int (rv), address); |
0f2d19dd | 1537 | } |
1bbd0b84 | 1538 | #undef FUNC_NAME |
0f2d19dd | 1539 | |
9c0129ac KR |
1540 | SCM_DEFINE (scm_sendto, "sendto", 3, 1, 1, |
1541 | (SCM sock, SCM message, SCM fam_or_sockaddr, SCM address, SCM args_and_flags), | |
eefae538 GH |
1542 | "Transmit the string @var{message} on the socket port\n" |
1543 | "@var{sock}. The\n" | |
1544 | "destination address is specified using the @var{fam},\n" | |
1545 | "@var{address} and\n" | |
9c0129ac KR |
1546 | "@var{args_and_flags} arguments, or just a socket address object " |
1547 | "returned by @code{make-socket-address}, in a similar way to the\n" | |
eefae538 GH |
1548 | "@code{connect} procedure. @var{args_and_flags} contains\n" |
1549 | "the usual connection arguments optionally followed by\n" | |
1550 | "a flags argument, which is a value or\n" | |
b380b885 | 1551 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1552 | "The value returned is the number of bytes transmitted --\n" |
1553 | "it's possible for\n" | |
1554 | "this to be less than the length of @var{message} if the\n" | |
1555 | "socket is\n" | |
1556 | "set to be non-blocking.\n" | |
1557 | "Note that the data is written directly to the socket\n" | |
1558 | "file descriptor:\n" | |
587a3355 MG |
1559 | "any unflushed buffered port data is ignored.\n" |
1560 | "This operation is defined only for strings containing codepoints\n" | |
1561 | "zero to 255.") | |
1bbd0b84 | 1562 | #define FUNC_NAME s_scm_sendto |
370312ae GH |
1563 | { |
1564 | int rv; | |
1565 | int fd; | |
1566 | int flg; | |
1567 | struct sockaddr *soka; | |
9c0129ac | 1568 | size_t size; |
370312ae | 1569 | |
78446828 | 1570 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1571 | SCM_VALIDATE_FPORT (1, sock); |
a6d9e5ab | 1572 | SCM_VALIDATE_STRING (2, message); |
ee149d03 | 1573 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
1574 | |
1575 | if (!scm_is_number (fam_or_sockaddr)) | |
1576 | { | |
1577 | /* FAM_OR_SOCKADDR must actually be a `socket address' object. This | |
1578 | means that the following arguments, i.e. ADDRESS and those listed in | |
1579 | ARGS_AND_FLAGS, are the `MSG_' flags. */ | |
1580 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
1581 | if (address != SCM_UNDEFINED) | |
1582 | args_and_flags = scm_cons (address, args_and_flags); | |
1583 | } | |
1584 | else | |
1585 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
1586 | &args_and_flags, 3, FUNC_NAME, &size); | |
1587 | ||
d2e53ed6 | 1588 | if (scm_is_null (args_and_flags)) |
370312ae GH |
1589 | flg = 0; |
1590 | else | |
1591 | { | |
34d19ef6 | 1592 | SCM_VALIDATE_CONS (5, args_and_flags); |
e4b265d8 | 1593 | flg = SCM_NUM2ULONG (5, SCM_CAR (args_and_flags)); |
370312ae | 1594 | } |
396e5506 | 1595 | SCM_SYSCALL (rv = sendto (fd, |
cc95e00a MV |
1596 | scm_i_string_chars (message), |
1597 | scm_i_string_length (message), | |
ae2fa5bc | 1598 | flg, soka, size)); |
370312ae | 1599 | if (rv == -1) |
439006bf GH |
1600 | { |
1601 | int save_errno = errno; | |
1602 | free (soka); | |
1603 | errno = save_errno; | |
1604 | SCM_SYSERROR; | |
1605 | } | |
1606 | free (soka); | |
396e5506 MV |
1607 | |
1608 | scm_remember_upto_here_1 (message); | |
e11e83f3 | 1609 | return scm_from_int (rv); |
370312ae | 1610 | } |
1bbd0b84 | 1611 | #undef FUNC_NAME |
370312ae GH |
1612 | \f |
1613 | ||
1614 | ||
1615 | void | |
0f2d19dd | 1616 | scm_init_socket () |
0f2d19dd | 1617 | { |
370312ae GH |
1618 | /* protocol families. */ |
1619 | #ifdef AF_UNSPEC | |
e11e83f3 | 1620 | scm_c_define ("AF_UNSPEC", scm_from_int (AF_UNSPEC)); |
370312ae GH |
1621 | #endif |
1622 | #ifdef AF_UNIX | |
e11e83f3 | 1623 | scm_c_define ("AF_UNIX", scm_from_int (AF_UNIX)); |
370312ae GH |
1624 | #endif |
1625 | #ifdef AF_INET | |
e11e83f3 | 1626 | scm_c_define ("AF_INET", scm_from_int (AF_INET)); |
370312ae | 1627 | #endif |
3453619b | 1628 | #ifdef AF_INET6 |
e11e83f3 | 1629 | scm_c_define ("AF_INET6", scm_from_int (AF_INET6)); |
3453619b | 1630 | #endif |
370312ae GH |
1631 | |
1632 | #ifdef PF_UNSPEC | |
e11e83f3 | 1633 | scm_c_define ("PF_UNSPEC", scm_from_int (PF_UNSPEC)); |
370312ae GH |
1634 | #endif |
1635 | #ifdef PF_UNIX | |
e11e83f3 | 1636 | scm_c_define ("PF_UNIX", scm_from_int (PF_UNIX)); |
370312ae GH |
1637 | #endif |
1638 | #ifdef PF_INET | |
e11e83f3 | 1639 | scm_c_define ("PF_INET", scm_from_int (PF_INET)); |
370312ae | 1640 | #endif |
3453619b | 1641 | #ifdef PF_INET6 |
e11e83f3 | 1642 | scm_c_define ("PF_INET6", scm_from_int (PF_INET6)); |
3453619b | 1643 | #endif |
370312ae | 1644 | |
66c73b76 GH |
1645 | /* standard addresses. */ |
1646 | #ifdef INADDR_ANY | |
b9bd8526 | 1647 | scm_c_define ("INADDR_ANY", scm_from_ulong (INADDR_ANY)); |
66c73b76 GH |
1648 | #endif |
1649 | #ifdef INADDR_BROADCAST | |
b9bd8526 | 1650 | scm_c_define ("INADDR_BROADCAST", scm_from_ulong (INADDR_BROADCAST)); |
66c73b76 GH |
1651 | #endif |
1652 | #ifdef INADDR_NONE | |
b9bd8526 | 1653 | scm_c_define ("INADDR_NONE", scm_from_ulong (INADDR_NONE)); |
66c73b76 GH |
1654 | #endif |
1655 | #ifdef INADDR_LOOPBACK | |
b9bd8526 | 1656 | scm_c_define ("INADDR_LOOPBACK", scm_from_ulong (INADDR_LOOPBACK)); |
66c73b76 GH |
1657 | #endif |
1658 | ||
6f637a1b KR |
1659 | /* socket types. |
1660 | ||
1661 | SOCK_PACKET is deliberately omitted, the GNU/Linux socket(2) and | |
1662 | packet(7) advise that it's obsolete and strongly deprecated. */ | |
1663 | ||
370312ae | 1664 | #ifdef SOCK_STREAM |
e11e83f3 | 1665 | scm_c_define ("SOCK_STREAM", scm_from_int (SOCK_STREAM)); |
370312ae GH |
1666 | #endif |
1667 | #ifdef SOCK_DGRAM | |
e11e83f3 | 1668 | scm_c_define ("SOCK_DGRAM", scm_from_int (SOCK_DGRAM)); |
370312ae | 1669 | #endif |
6f637a1b KR |
1670 | #ifdef SOCK_SEQPACKET |
1671 | scm_c_define ("SOCK_SEQPACKET", scm_from_int (SOCK_SEQPACKET)); | |
1672 | #endif | |
370312ae | 1673 | #ifdef SOCK_RAW |
e11e83f3 | 1674 | scm_c_define ("SOCK_RAW", scm_from_int (SOCK_RAW)); |
370312ae | 1675 | #endif |
6f637a1b KR |
1676 | #ifdef SOCK_RDM |
1677 | scm_c_define ("SOCK_RDM", scm_from_int (SOCK_RDM)); | |
1678 | #endif | |
370312ae | 1679 | |
8fae2bf4 KR |
1680 | /* setsockopt level. |
1681 | ||
1682 | SOL_IP, SOL_TCP and SOL_UDP are defined on gnu/linux, but not on for | |
1683 | instance NetBSD. We define IPPROTOs because that's what the posix spec | |
1684 | shows in its example at | |
1685 | ||
1686 | http://www.opengroup.org/onlinepubs/007904975/functions/getsockopt.html | |
1687 | */ | |
370312ae | 1688 | #ifdef SOL_SOCKET |
e11e83f3 | 1689 | scm_c_define ("SOL_SOCKET", scm_from_int (SOL_SOCKET)); |
370312ae | 1690 | #endif |
8fae2bf4 KR |
1691 | #ifdef IPPROTO_IP |
1692 | scm_c_define ("IPPROTO_IP", scm_from_int (IPPROTO_IP)); | |
370312ae | 1693 | #endif |
8fae2bf4 KR |
1694 | #ifdef IPPROTO_TCP |
1695 | scm_c_define ("IPPROTO_TCP", scm_from_int (IPPROTO_TCP)); | |
370312ae | 1696 | #endif |
8fae2bf4 KR |
1697 | #ifdef IPPROTO_UDP |
1698 | scm_c_define ("IPPROTO_UDP", scm_from_int (IPPROTO_UDP)); | |
370312ae GH |
1699 | #endif |
1700 | ||
1701 | /* setsockopt names. */ | |
1702 | #ifdef SO_DEBUG | |
e11e83f3 | 1703 | scm_c_define ("SO_DEBUG", scm_from_int (SO_DEBUG)); |
370312ae GH |
1704 | #endif |
1705 | #ifdef SO_REUSEADDR | |
e11e83f3 | 1706 | scm_c_define ("SO_REUSEADDR", scm_from_int (SO_REUSEADDR)); |
370312ae GH |
1707 | #endif |
1708 | #ifdef SO_STYLE | |
e11e83f3 | 1709 | scm_c_define ("SO_STYLE", scm_from_int (SO_STYLE)); |
370312ae GH |
1710 | #endif |
1711 | #ifdef SO_TYPE | |
e11e83f3 | 1712 | scm_c_define ("SO_TYPE", scm_from_int (SO_TYPE)); |
370312ae GH |
1713 | #endif |
1714 | #ifdef SO_ERROR | |
e11e83f3 | 1715 | scm_c_define ("SO_ERROR", scm_from_int (SO_ERROR)); |
370312ae GH |
1716 | #endif |
1717 | #ifdef SO_DONTROUTE | |
e11e83f3 | 1718 | scm_c_define ("SO_DONTROUTE", scm_from_int (SO_DONTROUTE)); |
370312ae GH |
1719 | #endif |
1720 | #ifdef SO_BROADCAST | |
e11e83f3 | 1721 | scm_c_define ("SO_BROADCAST", scm_from_int (SO_BROADCAST)); |
370312ae GH |
1722 | #endif |
1723 | #ifdef SO_SNDBUF | |
e11e83f3 | 1724 | scm_c_define ("SO_SNDBUF", scm_from_int (SO_SNDBUF)); |
370312ae GH |
1725 | #endif |
1726 | #ifdef SO_RCVBUF | |
e11e83f3 | 1727 | scm_c_define ("SO_RCVBUF", scm_from_int (SO_RCVBUF)); |
370312ae GH |
1728 | #endif |
1729 | #ifdef SO_KEEPALIVE | |
e11e83f3 | 1730 | scm_c_define ("SO_KEEPALIVE", scm_from_int (SO_KEEPALIVE)); |
370312ae GH |
1731 | #endif |
1732 | #ifdef SO_OOBINLINE | |
e11e83f3 | 1733 | scm_c_define ("SO_OOBINLINE", scm_from_int (SO_OOBINLINE)); |
370312ae GH |
1734 | #endif |
1735 | #ifdef SO_NO_CHECK | |
e11e83f3 | 1736 | scm_c_define ("SO_NO_CHECK", scm_from_int (SO_NO_CHECK)); |
370312ae GH |
1737 | #endif |
1738 | #ifdef SO_PRIORITY | |
e11e83f3 | 1739 | scm_c_define ("SO_PRIORITY", scm_from_int (SO_PRIORITY)); |
370312ae GH |
1740 | #endif |
1741 | #ifdef SO_LINGER | |
e11e83f3 | 1742 | scm_c_define ("SO_LINGER", scm_from_int (SO_LINGER)); |
370312ae GH |
1743 | #endif |
1744 | ||
1745 | /* recv/send options. */ | |
8ab3d8a0 KR |
1746 | #ifdef MSG_DONTWAIT |
1747 | scm_c_define ("MSG_DONTWAIT", scm_from_int (MSG_DONTWAIT)); | |
1748 | #endif | |
370312ae | 1749 | #ifdef MSG_OOB |
e11e83f3 | 1750 | scm_c_define ("MSG_OOB", scm_from_int (MSG_OOB)); |
370312ae GH |
1751 | #endif |
1752 | #ifdef MSG_PEEK | |
e11e83f3 | 1753 | scm_c_define ("MSG_PEEK", scm_from_int (MSG_PEEK)); |
370312ae GH |
1754 | #endif |
1755 | #ifdef MSG_DONTROUTE | |
e11e83f3 | 1756 | scm_c_define ("MSG_DONTROUTE", scm_from_int (MSG_DONTROUTE)); |
370312ae GH |
1757 | #endif |
1758 | ||
b4e15479 SJ |
1759 | #ifdef __MINGW32__ |
1760 | scm_i_init_socket_Win32 (); | |
1761 | #endif | |
1762 | ||
1c80707c MV |
1763 | #ifdef IP_ADD_MEMBERSHIP |
1764 | scm_c_define ("IP_ADD_MEMBERSHIP", scm_from_int (IP_ADD_MEMBERSHIP)); | |
1765 | scm_c_define ("IP_DROP_MEMBERSHIP", scm_from_int (IP_DROP_MEMBERSHIP)); | |
1766 | #endif | |
1767 | ||
0f2d19dd | 1768 | scm_add_feature ("socket"); |
370312ae | 1769 | |
a0599745 | 1770 | #include "libguile/socket.x" |
0f2d19dd JB |
1771 | } |
1772 | ||
89e00824 ML |
1773 | |
1774 | /* | |
1775 | Local Variables: | |
1776 | c-file-style: "gnu" | |
1777 | End: | |
1778 | */ |