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" | |
511246a1 TCM |
606 | "@defvar IP_MULTICAST_IF\n" |
607 | "This sets the source interface used by multicast traffic.\n" | |
608 | "@end defvar\n" | |
609 | "\n" | |
610 | "@defvar IP_MULTICAST_TTL\n" | |
611 | "This sets the default TTL for multicast traffic. This defaults \n" | |
612 | "to 1 and should be increased to allow traffic to pass beyond the\n" | |
613 | "local network.\n" | |
614 | "@end defvar\n" | |
615 | "\n" | |
72e3dae1 KR |
616 | "@defvar IP_ADD_MEMBERSHIP\n" |
617 | "@defvarx IP_DROP_MEMBERSHIP\n" | |
618 | "These can be used only with @code{setsockopt}, not\n" | |
619 | "@code{getsockopt}. @var{value} is a pair\n" | |
620 | "@code{(@var{MULTIADDR} . @var{INTERFACEADDR})} of IPv4\n" | |
621 | "addresses (@pxref{Network Address Conversion}).\n" | |
622 | "@var{MULTIADDR} is a multicast address to be added to or\n" | |
623 | "dropped from the interface @var{INTERFACEADDR}.\n" | |
624 | "@var{INTERFACEADDR} can be @code{INADDR_ANY} to have the system\n" | |
625 | "select the interface. @var{INTERFACEADDR} can also be an\n" | |
f1b7209b KR |
626 | "interface index number, on systems supporting that.\n" |
627 | "@end defvar") | |
1bbd0b84 | 628 | #define FUNC_NAME s_scm_setsockopt |
0f2d19dd | 629 | { |
370312ae | 630 | int fd; |
1c80707c MV |
631 | |
632 | int opt_int; | |
370312ae | 633 | #ifdef HAVE_STRUCT_LINGER |
1c80707c | 634 | struct linger opt_linger; |
370312ae | 635 | #endif |
ecc9f40f | 636 | |
56a3dcd4 | 637 | #ifdef HAVE_STRUCT_IP_MREQ |
1c80707c | 638 | struct ip_mreq opt_mreq; |
ecc9f40f | 639 | #endif |
1c80707c MV |
640 | |
641 | const void *optval = NULL; | |
642 | socklen_t optlen = 0; | |
643 | ||
370312ae | 644 | int ilevel, ioptname; |
439006bf | 645 | |
78446828 | 646 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf GH |
647 | |
648 | SCM_VALIDATE_OPFPORT (1, sock); | |
7cee5b31 MV |
649 | ilevel = scm_to_int (level); |
650 | ioptname = scm_to_int (optname); | |
439006bf | 651 | |
ee149d03 | 652 | fd = SCM_FPORT_FDES (sock); |
1c80707c | 653 | |
439006bf | 654 | if (ilevel == SOL_SOCKET) |
370312ae | 655 | { |
439006bf GH |
656 | #ifdef SO_LINGER |
657 | if (ioptname == SO_LINGER) | |
658 | { | |
370312ae | 659 | #ifdef HAVE_STRUCT_LINGER |
d2e53ed6 | 660 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c MV |
661 | opt_linger.l_onoff = scm_to_int (SCM_CAR (value)); |
662 | opt_linger.l_linger = scm_to_int (SCM_CDR (value)); | |
663 | optlen = sizeof (struct linger); | |
664 | optval = &opt_linger; | |
370312ae | 665 | #else |
d2e53ed6 | 666 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c | 667 | opt_int = scm_to_int (SCM_CAR (value)); |
439006bf | 668 | /* timeout is ignored, but may as well validate it. */ |
1c80707c MV |
669 | scm_to_int (SCM_CDR (value)); |
670 | optlen = sizeof (int); | |
671 | optval = &opt_int; | |
439006bf GH |
672 | #endif |
673 | } | |
674 | else | |
675 | #endif | |
676 | if (0 | |
370312ae | 677 | #ifdef SO_SNDBUF |
439006bf | 678 | || ioptname == SO_SNDBUF |
370312ae GH |
679 | #endif |
680 | #ifdef SO_RCVBUF | |
439006bf | 681 | || ioptname == SO_RCVBUF |
370312ae | 682 | #endif |
439006bf GH |
683 | ) |
684 | { | |
1c80707c MV |
685 | opt_int = scm_to_int (value); |
686 | optlen = sizeof (size_t); | |
687 | optval = &opt_int; | |
439006bf GH |
688 | } |
689 | } | |
1c80707c | 690 | |
56a3dcd4 | 691 | #ifdef HAVE_STRUCT_IP_MREQ |
1c80707c MV |
692 | if (ilevel == IPPROTO_IP && |
693 | (ioptname == IP_ADD_MEMBERSHIP || ioptname == IP_DROP_MEMBERSHIP)) | |
0f2d19dd | 694 | { |
1c80707c MV |
695 | /* Fourth argument must be a pair of addresses. */ |
696 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); | |
697 | opt_mreq.imr_multiaddr.s_addr = htonl (scm_to_ulong (SCM_CAR (value))); | |
698 | opt_mreq.imr_interface.s_addr = htonl (scm_to_ulong (SCM_CDR (value))); | |
699 | optlen = sizeof (opt_mreq); | |
700 | optval = &opt_mreq; | |
701 | } | |
ecc9f40f | 702 | #endif |
439006bf | 703 | |
1c80707c MV |
704 | if (optval == NULL) |
705 | { | |
706 | /* Most options take an int. */ | |
707 | opt_int = scm_to_int (value); | |
708 | optlen = sizeof (int); | |
709 | optval = &opt_int; | |
0f2d19dd | 710 | } |
1c80707c MV |
711 | |
712 | if (setsockopt (fd, ilevel, ioptname, optval, optlen) == -1) | |
1bbd0b84 | 713 | SCM_SYSERROR; |
370312ae | 714 | return SCM_UNSPECIFIED; |
0f2d19dd | 715 | } |
1bbd0b84 | 716 | #undef FUNC_NAME |
0f2d19dd | 717 | |
a1ec6916 | 718 | SCM_DEFINE (scm_shutdown, "shutdown", 2, 0, 0, |
1bbd0b84 | 719 | (SCM sock, SCM how), |
b380b885 | 720 | "Sockets can be closed simply by using @code{close-port}. The\n" |
bb2c02f2 | 721 | "@code{shutdown} procedure allows reception or transmission on a\n" |
b380b885 MD |
722 | "connection to be shut down individually, according to the parameter\n" |
723 | "@var{how}:\n\n" | |
724 | "@table @asis\n" | |
725 | "@item 0\n" | |
726 | "Stop receiving data for this socket. If further data arrives, reject it.\n" | |
727 | "@item 1\n" | |
728 | "Stop trying to transmit data from this socket. Discard any\n" | |
729 | "data waiting to be sent. Stop looking for acknowledgement of\n" | |
730 | "data already sent; don't retransmit it if it is lost.\n" | |
731 | "@item 2\n" | |
732 | "Stop both reception and transmission.\n" | |
733 | "@end table\n\n" | |
734 | "The return value is unspecified.") | |
1bbd0b84 | 735 | #define FUNC_NAME s_scm_shutdown |
0f2d19dd | 736 | { |
370312ae | 737 | int fd; |
78446828 | 738 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 739 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 740 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 741 | if (shutdown (fd, scm_to_signed_integer (how, 0, 2)) == -1) |
1bbd0b84 | 742 | SCM_SYSERROR; |
370312ae GH |
743 | return SCM_UNSPECIFIED; |
744 | } | |
1bbd0b84 | 745 | #undef FUNC_NAME |
0f2d19dd | 746 | |
370312ae GH |
747 | /* convert fam/address/args into a sockaddr of the appropriate type. |
748 | args is modified by removing the arguments actually used. | |
749 | which_arg and proc are used when reporting errors: | |
750 | which_arg is the position of address in the original argument list. | |
751 | proc is the name of the original procedure. | |
752 | size returns the size of the structure allocated. */ | |
753 | ||
bc732342 | 754 | static struct sockaddr * |
439006bf | 755 | scm_fill_sockaddr (int fam, SCM address, SCM *args, int which_arg, |
9c0129ac | 756 | const char *proc, size_t *size) |
3453619b | 757 | #define FUNC_NAME proc |
370312ae GH |
758 | { |
759 | switch (fam) | |
0f2d19dd | 760 | { |
370312ae GH |
761 | case AF_INET: |
762 | { | |
370312ae | 763 | struct sockaddr_in *soka; |
3453619b GH |
764 | unsigned long addr; |
765 | int port; | |
370312ae | 766 | |
3453619b GH |
767 | SCM_VALIDATE_ULONG_COPY (which_arg, address, addr); |
768 | SCM_VALIDATE_CONS (which_arg + 1, *args); | |
7cee5b31 | 769 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 770 | *args = SCM_CDR (*args); |
67329a9e | 771 | soka = (struct sockaddr_in *) scm_malloc (sizeof (struct sockaddr_in)); |
9c0129ac | 772 | |
56a3dcd4 | 773 | #ifdef HAVE_STRUCT_SOCKADDR_SIN_LEN |
3453619b GH |
774 | soka->sin_len = sizeof (struct sockaddr_in); |
775 | #endif | |
370312ae | 776 | soka->sin_family = AF_INET; |
3453619b GH |
777 | soka->sin_addr.s_addr = htonl (addr); |
778 | soka->sin_port = htons (port); | |
370312ae GH |
779 | *size = sizeof (struct sockaddr_in); |
780 | return (struct sockaddr *) soka; | |
781 | } | |
a57a0b1e | 782 | #ifdef HAVE_IPV6 |
3453619b GH |
783 | case AF_INET6: |
784 | { | |
785 | /* see RFC2553. */ | |
786 | int port; | |
787 | struct sockaddr_in6 *soka; | |
788 | unsigned long flowinfo = 0; | |
789 | unsigned long scope_id = 0; | |
790 | ||
3453619b | 791 | SCM_VALIDATE_CONS (which_arg + 1, *args); |
7cee5b31 | 792 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 793 | *args = SCM_CDR (*args); |
d2e53ed6 | 794 | if (scm_is_pair (*args)) |
3453619b GH |
795 | { |
796 | SCM_VALIDATE_ULONG_COPY (which_arg + 2, SCM_CAR (*args), flowinfo); | |
797 | *args = SCM_CDR (*args); | |
d2e53ed6 | 798 | if (scm_is_pair (*args)) |
3453619b GH |
799 | { |
800 | SCM_VALIDATE_ULONG_COPY (which_arg + 3, SCM_CAR (*args), | |
801 | scope_id); | |
802 | *args = SCM_CDR (*args); | |
803 | } | |
804 | } | |
67329a9e | 805 | soka = (struct sockaddr_in6 *) scm_malloc (sizeof (struct sockaddr_in6)); |
9c0129ac | 806 | |
56a3dcd4 | 807 | #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN |
3453619b GH |
808 | soka->sin6_len = sizeof (struct sockaddr_in6); |
809 | #endif | |
810 | soka->sin6_family = AF_INET6; | |
7cee5b31 | 811 | scm_to_ipv6 (soka->sin6_addr.s6_addr, address); |
5a525b84 | 812 | soka->sin6_port = htons (port); |
3453619b | 813 | soka->sin6_flowinfo = flowinfo; |
5a525b84 | 814 | #ifdef HAVE_SIN6_SCOPE_ID |
3453619b | 815 | soka->sin6_scope_id = scope_id; |
5a525b84 | 816 | #endif |
3453619b GH |
817 | *size = sizeof (struct sockaddr_in6); |
818 | return (struct sockaddr *) soka; | |
819 | } | |
820 | #endif | |
1ba8c23a | 821 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
370312ae GH |
822 | case AF_UNIX: |
823 | { | |
824 | struct sockaddr_un *soka; | |
439006bf | 825 | int addr_size; |
7f9994d9 MV |
826 | char *c_address; |
827 | ||
661ae7ab | 828 | scm_dynwind_begin (0); |
7f9994d9 MV |
829 | |
830 | c_address = scm_to_locale_string (address); | |
661ae7ab | 831 | scm_dynwind_free (c_address); |
370312ae | 832 | |
439006bf GH |
833 | /* the static buffer size in sockaddr_un seems to be arbitrary |
834 | and not necessarily a hard limit. e.g., the glibc manual | |
835 | suggests it may be possible to declare it size 0. let's | |
836 | ignore it. if the O/S doesn't like the size it will cause | |
837 | connect/bind etc., to fail. sun_path is always the last | |
838 | member of the structure. */ | |
839 | addr_size = sizeof (struct sockaddr_un) | |
7f9994d9 | 840 | + max (0, strlen (c_address) + 1 - (sizeof soka->sun_path)); |
67329a9e | 841 | soka = (struct sockaddr_un *) scm_malloc (addr_size); |
439006bf GH |
842 | memset (soka, 0, addr_size); /* for sun_len: see sin_len above. */ |
843 | soka->sun_family = AF_UNIX; | |
7f9994d9 | 844 | strcpy (soka->sun_path, c_address); |
439006bf | 845 | *size = SUN_LEN (soka); |
7f9994d9 | 846 | |
661ae7ab | 847 | scm_dynwind_end (); |
370312ae GH |
848 | return (struct sockaddr *) soka; |
849 | } | |
0e958795 | 850 | #endif |
370312ae | 851 | default: |
e11e83f3 | 852 | scm_out_of_range (proc, scm_from_int (fam)); |
0f2d19dd | 853 | } |
0f2d19dd | 854 | } |
3453619b | 855 | #undef FUNC_NAME |
9c0129ac KR |
856 | |
857 | SCM_DEFINE (scm_connect, "connect", 2, 1, 1, | |
858 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 859 | "Initiate a connection from a socket using a specified address\n" |
3453619b GH |
860 | "family to the address\n" |
861 | "specified by @var{address} and possibly @var{args}.\n" | |
862 | "The format required for @var{address}\n" | |
863 | "and @var{args} depends on the family of the socket.\n\n" | |
b380b885 | 864 | "For a socket of family @code{AF_UNIX},\n" |
3453619b | 865 | "only @var{address} is specified and must be a string with the\n" |
b380b885 MD |
866 | "filename where the socket is to be created.\n\n" |
867 | "For a socket of family @code{AF_INET},\n" | |
3453619b GH |
868 | "@var{address} must be an integer IPv4 host address and\n" |
869 | "@var{args} must be a single integer port number.\n\n" | |
870 | "For a socket of family @code{AF_INET6},\n" | |
871 | "@var{address} must be an integer IPv6 host address and\n" | |
872 | "@var{args} may be up to three integers:\n" | |
873 | "port [flowinfo] [scope_id],\n" | |
874 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
875 | "Alternatively, the second argument can be a socket address object " |
876 | "as returned by @code{make-socket-address}, in which case the " | |
877 | "no additional arguments should be passed.\n\n" | |
b380b885 | 878 | "The return value is unspecified.") |
1bbd0b84 | 879 | #define FUNC_NAME s_scm_connect |
0f2d19dd | 880 | { |
370312ae GH |
881 | int fd; |
882 | struct sockaddr *soka; | |
9c0129ac | 883 | size_t size; |
0f2d19dd | 884 | |
78446828 | 885 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 886 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 887 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
888 | |
889 | if (address == SCM_UNDEFINED) | |
890 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a | |
891 | `socket address' object. */ | |
892 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
893 | else | |
894 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
895 | &args, 3, FUNC_NAME, &size); | |
896 | ||
370312ae | 897 | if (connect (fd, soka, size) == -1) |
439006bf GH |
898 | { |
899 | int save_errno = errno; | |
9c0129ac | 900 | |
439006bf GH |
901 | free (soka); |
902 | errno = save_errno; | |
903 | SCM_SYSERROR; | |
904 | } | |
905 | free (soka); | |
370312ae | 906 | return SCM_UNSPECIFIED; |
0f2d19dd | 907 | } |
1bbd0b84 | 908 | #undef FUNC_NAME |
0f2d19dd | 909 | |
9c0129ac KR |
910 | SCM_DEFINE (scm_bind, "bind", 2, 1, 1, |
911 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 912 | "Assign an address to the socket port @var{sock}.\n" |
b380b885 MD |
913 | "Generally this only needs to be done for server sockets,\n" |
914 | "so they know where to look for incoming connections. A socket\n" | |
915 | "without an address will be assigned one automatically when it\n" | |
916 | "starts communicating.\n\n" | |
eefae538 GH |
917 | "The format of @var{address} and @var{args} depends\n" |
918 | "on the family of the socket.\n\n" | |
b380b885 | 919 | "For a socket of family @code{AF_UNIX}, only @var{address}\n" |
eefae538 GH |
920 | "is specified and must be a string with the filename where\n" |
921 | "the socket is to be created.\n\n" | |
922 | "For a socket of family @code{AF_INET}, @var{address}\n" | |
923 | "must be an integer IPv4 address and @var{args}\n" | |
924 | "must be a single integer port number.\n\n" | |
925 | "The values of the following variables can also be used for\n" | |
926 | "@var{address}:\n\n" | |
b380b885 MD |
927 | "@defvar INADDR_ANY\n" |
928 | "Allow connections from any address.\n" | |
929 | "@end defvar\n\n" | |
930 | "@defvar INADDR_LOOPBACK\n" | |
931 | "The address of the local host using the loopback device.\n" | |
932 | "@end defvar\n\n" | |
933 | "@defvar INADDR_BROADCAST\n" | |
934 | "The broadcast address on the local network.\n" | |
935 | "@end defvar\n\n" | |
936 | "@defvar INADDR_NONE\n" | |
937 | "No address.\n" | |
938 | "@end defvar\n\n" | |
eefae538 GH |
939 | "For a socket of family @code{AF_INET6}, @var{address}\n" |
940 | "must be an integer IPv6 address and @var{args}\n" | |
941 | "may be up to three integers:\n" | |
942 | "port [flowinfo] [scope_id],\n" | |
943 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
944 | "Alternatively, the second argument can be a socket address object " |
945 | "as returned by @code{make-socket-address}, in which case the " | |
946 | "no additional arguments should be passed.\n\n" | |
b380b885 | 947 | "The return value is unspecified.") |
1bbd0b84 | 948 | #define FUNC_NAME s_scm_bind |
370312ae | 949 | { |
370312ae | 950 | struct sockaddr *soka; |
9c0129ac | 951 | size_t size; |
370312ae GH |
952 | int fd; |
953 | ||
78446828 | 954 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 955 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 956 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
957 | |
958 | if (address == SCM_UNDEFINED) | |
959 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a | |
960 | `socket address' object. */ | |
961 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
962 | else | |
963 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
964 | &args, 3, FUNC_NAME, &size); | |
965 | ||
966 | ||
439006bf GH |
967 | if (bind (fd, soka, size) == -1) |
968 | { | |
969 | int save_errno = errno; | |
9c0129ac | 970 | |
439006bf GH |
971 | free (soka); |
972 | errno = save_errno; | |
1bbd0b84 | 973 | SCM_SYSERROR; |
439006bf GH |
974 | } |
975 | free (soka); | |
370312ae GH |
976 | return SCM_UNSPECIFIED; |
977 | } | |
1bbd0b84 | 978 | #undef FUNC_NAME |
370312ae | 979 | |
a1ec6916 | 980 | SCM_DEFINE (scm_listen, "listen", 2, 0, 0, |
1bbd0b84 | 981 | (SCM sock, SCM backlog), |
eefae538 | 982 | "Enable @var{sock} to accept connection\n" |
b380b885 MD |
983 | "requests. @var{backlog} is an integer specifying\n" |
984 | "the maximum length of the queue for pending connections.\n" | |
eefae538 GH |
985 | "If the queue fills, new clients will fail to connect until\n" |
986 | "the server calls @code{accept} to accept a connection from\n" | |
987 | "the queue.\n\n" | |
b380b885 | 988 | "The return value is unspecified.") |
1bbd0b84 | 989 | #define FUNC_NAME s_scm_listen |
370312ae GH |
990 | { |
991 | int fd; | |
78446828 | 992 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 993 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 994 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 995 | if (listen (fd, scm_to_int (backlog)) == -1) |
1bbd0b84 | 996 | SCM_SYSERROR; |
370312ae GH |
997 | return SCM_UNSPECIFIED; |
998 | } | |
1bbd0b84 | 999 | #undef FUNC_NAME |
370312ae GH |
1000 | |
1001 | /* Put the components of a sockaddr into a new SCM vector. */ | |
9c0129ac | 1002 | static SCM_C_INLINE_KEYWORD SCM |
f43f3620 LC |
1003 | _scm_from_sockaddr (const scm_t_max_sockaddr *address, unsigned addr_size, |
1004 | const char *proc) | |
0f2d19dd | 1005 | { |
f43f3620 LC |
1006 | SCM result = SCM_EOL; |
1007 | short int fam = ((struct sockaddr *) address)->sa_family; | |
439006bf | 1008 | |
5a525b84 | 1009 | switch (fam) |
0f2d19dd | 1010 | { |
5a525b84 GH |
1011 | case AF_INET: |
1012 | { | |
e1368a8d | 1013 | const struct sockaddr_in *nad = (struct sockaddr_in *) address; |
439006bf | 1014 | |
1d1559ce | 1015 | result = scm_c_make_vector (3, SCM_UNSPECIFIED); |
34d19ef6 | 1016 | |
4057a3e0 MV |
1017 | SCM_SIMPLE_VECTOR_SET(result, 0, |
1018 | scm_from_short (fam)); | |
1019 | SCM_SIMPLE_VECTOR_SET(result, 1, | |
1020 | scm_from_ulong (ntohl (nad->sin_addr.s_addr))); | |
1021 | SCM_SIMPLE_VECTOR_SET(result, 2, | |
1022 | scm_from_ushort (ntohs (nad->sin_port))); | |
5a525b84 GH |
1023 | } |
1024 | break; | |
a57a0b1e | 1025 | #ifdef HAVE_IPV6 |
5a525b84 GH |
1026 | case AF_INET6: |
1027 | { | |
e1368a8d | 1028 | const struct sockaddr_in6 *nad = (struct sockaddr_in6 *) address; |
5a525b84 | 1029 | |
1d1559ce | 1030 | result = scm_c_make_vector (5, SCM_UNSPECIFIED); |
4057a3e0 MV |
1031 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
1032 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_ipv6 (nad->sin6_addr.s6_addr)); | |
1033 | SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ushort (ntohs (nad->sin6_port))); | |
1034 | SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_uint32 (nad->sin6_flowinfo)); | |
5a525b84 | 1035 | #ifdef HAVE_SIN6_SCOPE_ID |
4057a3e0 | 1036 | SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_ulong (nad->sin6_scope_id)); |
5a525b84 | 1037 | #else |
4057a3e0 | 1038 | SCM_SIMPLE_VECTOR_SET(result, 4, SCM_INUM0); |
0e958795 | 1039 | #endif |
5a525b84 GH |
1040 | } |
1041 | break; | |
1042 | #endif | |
1043 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1044 | case AF_UNIX: | |
1045 | { | |
e1368a8d | 1046 | const struct sockaddr_un *nad = (struct sockaddr_un *) address; |
439006bf | 1047 | |
1d1559ce | 1048 | result = scm_c_make_vector (2, SCM_UNSPECIFIED); |
34d19ef6 | 1049 | |
4057a3e0 | 1050 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
aca23b65 MV |
1051 | /* When addr_size is not enough to cover sun_path, do not try |
1052 | to access it. */ | |
1053 | if (addr_size <= offsetof (struct sockaddr_un, sun_path)) | |
4057a3e0 | 1054 | SCM_SIMPLE_VECTOR_SET(result, 1, SCM_BOOL_F); |
aca23b65 | 1055 | else |
4057a3e0 | 1056 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (nad->sun_path)); |
5a525b84 GH |
1057 | } |
1058 | break; | |
1059 | #endif | |
1060 | default: | |
9c0129ac KR |
1061 | result = SCM_UNSPECIFIED; |
1062 | scm_misc_error (proc, "unrecognised address family: ~A", | |
e11e83f3 | 1063 | scm_list_1 (scm_from_int (fam))); |
9c0129ac | 1064 | |
0f2d19dd | 1065 | } |
1d1559ce | 1066 | return result; |
370312ae GH |
1067 | } |
1068 | ||
9c0129ac KR |
1069 | /* The publicly-visible function. Return a Scheme object representing |
1070 | ADDRESS, an address of ADDR_SIZE bytes. */ | |
1071 | SCM | |
1072 | scm_from_sockaddr (const struct sockaddr *address, unsigned addr_size) | |
1073 | { | |
f43f3620 LC |
1074 | return (_scm_from_sockaddr ((scm_t_max_sockaddr *) address, |
1075 | addr_size, "scm_from_sockaddr")); | |
9c0129ac KR |
1076 | } |
1077 | ||
1078 | /* Convert ADDRESS, an address object returned by either | |
1079 | `scm_from_sockaddr ()' or `scm_make_socket_address ()', into its C | |
1080 | representation. On success, a non-NULL pointer is returned and | |
1081 | ADDRESS_SIZE is updated to the actual size (in bytes) of the returned | |
1082 | address. The result must eventually be freed using `free ()'. */ | |
1083 | struct sockaddr * | |
1084 | scm_to_sockaddr (SCM address, size_t *address_size) | |
1085 | #define FUNC_NAME "scm_to_sockaddr" | |
1086 | { | |
1087 | short int family; | |
1088 | struct sockaddr *c_address = NULL; | |
1089 | ||
1090 | SCM_VALIDATE_VECTOR (1, address); | |
1091 | ||
1092 | *address_size = 0; | |
1093 | family = scm_to_short (SCM_SIMPLE_VECTOR_REF (address, 0)); | |
1094 | ||
1095 | switch (family) | |
1096 | { | |
1097 | case AF_INET: | |
1098 | { | |
1099 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 3) | |
1100 | scm_misc_error (FUNC_NAME, | |
1101 | "invalid inet address representation: ~A", | |
1102 | scm_list_1 (address)); | |
1103 | else | |
1104 | { | |
1105 | struct sockaddr_in c_inet; | |
1106 | ||
1107 | c_inet.sin_addr.s_addr = | |
1108 | htonl (scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 1))); | |
1109 | c_inet.sin_port = | |
1110 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1111 | c_inet.sin_family = AF_INET; | |
1112 | ||
1113 | *address_size = sizeof (c_inet); | |
1114 | c_address = scm_malloc (sizeof (c_inet)); | |
1115 | memcpy (c_address, &c_inet, sizeof (c_inet)); | |
1116 | } | |
1117 | ||
1118 | break; | |
1119 | } | |
1120 | ||
1121 | #ifdef HAVE_IPV6 | |
1122 | case AF_INET6: | |
1123 | { | |
1124 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 5) | |
1125 | scm_misc_error (FUNC_NAME, "invalid inet6 address representation: ~A", | |
1126 | scm_list_1 (address)); | |
1127 | else | |
1128 | { | |
1129 | struct sockaddr_in6 c_inet6; | |
1130 | ||
1ff4da65 NJ |
1131 | scm_to_ipv6 (c_inet6.sin6_addr.s6_addr, |
1132 | SCM_SIMPLE_VECTOR_REF (address, 1)); | |
9c0129ac KR |
1133 | c_inet6.sin6_port = |
1134 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1135 | c_inet6.sin6_flowinfo = | |
1136 | scm_to_uint32 (SCM_SIMPLE_VECTOR_REF (address, 3)); | |
1137 | #ifdef HAVE_SIN6_SCOPE_ID | |
1138 | c_inet6.sin6_scope_id = | |
1139 | scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 4)); | |
1140 | #endif | |
1141 | ||
1142 | c_inet6.sin6_family = AF_INET6; | |
1143 | ||
1144 | *address_size = sizeof (c_inet6); | |
1145 | c_address = scm_malloc (sizeof (c_inet6)); | |
1146 | memcpy (c_address, &c_inet6, sizeof (c_inet6)); | |
1147 | } | |
1148 | ||
1149 | break; | |
1150 | } | |
1151 | #endif | |
1152 | ||
1153 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1154 | case AF_UNIX: | |
1155 | { | |
1156 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 2) | |
1157 | scm_misc_error (FUNC_NAME, "invalid unix address representation: ~A", | |
1158 | scm_list_1 (address)); | |
1159 | else | |
1160 | { | |
1161 | SCM path; | |
1162 | size_t path_len = 0; | |
1163 | ||
1164 | path = SCM_SIMPLE_VECTOR_REF (address, 1); | |
1165 | if ((!scm_is_string (path)) && (path != SCM_BOOL_F)) | |
1166 | scm_misc_error (FUNC_NAME, "invalid unix address " | |
1167 | "path: ~A", scm_list_1 (path)); | |
1168 | else | |
1169 | { | |
1170 | struct sockaddr_un c_unix; | |
1171 | ||
1172 | if (path == SCM_BOOL_F) | |
1173 | path_len = 0; | |
1174 | else | |
1175 | path_len = scm_c_string_length (path); | |
1176 | ||
1177 | #ifdef UNIX_PATH_MAX | |
1178 | if (path_len >= UNIX_PATH_MAX) | |
1179 | #else | |
1180 | /* We can hope that this limit will eventually vanish, at least on GNU. | |
1181 | However, currently, while glibc doesn't define `UNIX_PATH_MAX', it | |
1182 | documents it has being limited to 108 bytes. */ | |
1183 | if (path_len >= sizeof (c_unix.sun_path)) | |
1184 | #endif | |
1185 | scm_misc_error (FUNC_NAME, "unix address path " | |
1186 | "too long: ~A", scm_list_1 (path)); | |
1187 | else | |
1188 | { | |
1189 | if (path_len) | |
1190 | { | |
1191 | scm_to_locale_stringbuf (path, c_unix.sun_path, | |
1192 | #ifdef UNIX_PATH_MAX | |
1193 | UNIX_PATH_MAX); | |
1194 | #else | |
1195 | sizeof (c_unix.sun_path)); | |
1196 | #endif | |
1197 | c_unix.sun_path[path_len] = '\0'; | |
1198 | ||
1199 | /* Sanity check. */ | |
1200 | if (strlen (c_unix.sun_path) != path_len) | |
1201 | scm_misc_error (FUNC_NAME, "unix address path " | |
1202 | "contains nul characters: ~A", | |
1203 | scm_list_1 (path)); | |
1204 | } | |
1205 | else | |
1206 | c_unix.sun_path[0] = '\0'; | |
1207 | ||
1208 | c_unix.sun_family = AF_UNIX; | |
1209 | ||
1210 | *address_size = SUN_LEN (&c_unix); | |
1211 | c_address = scm_malloc (sizeof (c_unix)); | |
1212 | memcpy (c_address, &c_unix, sizeof (c_unix)); | |
1213 | } | |
1214 | } | |
1215 | } | |
1216 | ||
1217 | break; | |
1218 | } | |
1219 | #endif | |
1220 | ||
1221 | default: | |
1222 | scm_misc_error (FUNC_NAME, "unrecognised address family: ~A", | |
1223 | scm_list_1 (scm_from_ushort (family))); | |
1224 | } | |
1225 | ||
1226 | return c_address; | |
1227 | } | |
1228 | #undef FUNC_NAME | |
1229 | ||
1230 | ||
1231 | /* Return a newly-allocated `sockaddr' structure that reflects ADDRESS, being | |
1232 | an address of family FAMILY, with the family-specific parameters ARGS (see | |
1233 | the description of `connect' for details). The returned structure may be | |
1234 | freed using `free ()'. */ | |
1235 | struct sockaddr * | |
1236 | scm_c_make_socket_address (SCM family, SCM address, SCM args, | |
1237 | size_t *address_size) | |
1238 | { | |
9c0129ac KR |
1239 | struct sockaddr *soka; |
1240 | ||
1241 | soka = scm_fill_sockaddr (scm_to_ushort (family), address, &args, 1, | |
d7c6575f | 1242 | "scm_c_make_socket_address", address_size); |
9c0129ac KR |
1243 | |
1244 | return soka; | |
1245 | } | |
1246 | ||
1247 | SCM_DEFINE (scm_make_socket_address, "make-socket-address", 2, 0, 1, | |
1248 | (SCM family, SCM address, SCM args), | |
1249 | "Return a Scheme address object that reflects @var{address}, " | |
1250 | "being an address of family @var{family}, with the " | |
1251 | "family-specific parameters @var{args} (see the description of " | |
1252 | "@code{connect} for details).") | |
1253 | #define FUNC_NAME s_scm_make_socket_address | |
1254 | { | |
1ac5fb45 | 1255 | SCM result = SCM_BOOL_F; |
9c0129ac KR |
1256 | struct sockaddr *c_address; |
1257 | size_t c_address_size; | |
1258 | ||
1259 | c_address = scm_c_make_socket_address (family, address, args, | |
1260 | &c_address_size); | |
1ac5fb45 LC |
1261 | if (c_address != NULL) |
1262 | { | |
1263 | result = scm_from_sockaddr (c_address, c_address_size); | |
1264 | free (c_address); | |
1265 | } | |
9c0129ac | 1266 | |
1ac5fb45 | 1267 | return result; |
9c0129ac KR |
1268 | } |
1269 | #undef FUNC_NAME | |
1270 | ||
1271 | \f | |
a1ec6916 | 1272 | SCM_DEFINE (scm_accept, "accept", 1, 0, 0, |
1bbd0b84 | 1273 | (SCM sock), |
eefae538 GH |
1274 | "Accept a connection on a bound, listening socket.\n" |
1275 | "If there\n" | |
1276 | "are no pending connections in the queue, wait until\n" | |
1277 | "one is available unless the non-blocking option has been\n" | |
1278 | "set on the socket.\n\n" | |
b380b885 | 1279 | "The return value is a\n" |
eefae538 GH |
1280 | "pair in which the @emph{car} is a new socket port for the\n" |
1281 | "connection and\n" | |
1282 | "the @emph{cdr} is an object with address information about the\n" | |
1283 | "client which initiated the connection.\n\n" | |
1284 | "@var{sock} does not become part of the\n" | |
b380b885 | 1285 | "connection and will continue to accept new requests.") |
1bbd0b84 | 1286 | #define FUNC_NAME s_scm_accept |
0f2d19dd | 1287 | { |
7d1fc872 | 1288 | int fd, selected; |
370312ae GH |
1289 | int newfd; |
1290 | SCM address; | |
1291 | SCM newsock; | |
7d1fc872 | 1292 | SELECT_TYPE readfds, exceptfds; |
5ee417fc | 1293 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1294 | scm_t_max_sockaddr addr; |
370312ae | 1295 | |
78446828 | 1296 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 1297 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1298 | fd = SCM_FPORT_FDES (sock); |
7d1fc872 LC |
1299 | |
1300 | FD_ZERO (&readfds); | |
1301 | FD_ZERO (&exceptfds); | |
1302 | FD_SET (fd, &readfds); | |
1303 | FD_SET (fd, &exceptfds); | |
1304 | ||
1305 | /* Block until something happens on FD, leaving guile mode while | |
1306 | waiting. */ | |
1307 | selected = scm_std_select (fd + 1, &readfds, NULL, &exceptfds, | |
1308 | NULL); | |
1309 | if (selected < 0) | |
1310 | SCM_SYSERROR; | |
1311 | ||
f43f3620 | 1312 | newfd = accept (fd, (struct sockaddr *) &addr, &addr_size); |
439006bf GH |
1313 | if (newfd == -1) |
1314 | SCM_SYSERROR; | |
1315 | newsock = SCM_SOCK_FD_TO_PORT (newfd); | |
f43f3620 LC |
1316 | address = _scm_from_sockaddr (&addr, addr_size, |
1317 | FUNC_NAME); | |
1318 | ||
370312ae | 1319 | return scm_cons (newsock, address); |
0f2d19dd | 1320 | } |
1bbd0b84 | 1321 | #undef FUNC_NAME |
0f2d19dd | 1322 | |
a1ec6916 | 1323 | SCM_DEFINE (scm_getsockname, "getsockname", 1, 0, 0, |
1bbd0b84 | 1324 | (SCM sock), |
eefae538 | 1325 | "Return the address of @var{sock}, in the same form as the\n" |
1e6808ea MG |
1326 | "object returned by @code{accept}. On many systems the address\n" |
1327 | "of a socket in the @code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1328 | #define FUNC_NAME s_scm_getsockname |
0f2d19dd | 1329 | { |
370312ae | 1330 | int fd; |
5ee417fc | 1331 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1332 | scm_t_max_sockaddr addr; |
439006bf | 1333 | |
78446828 | 1334 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1335 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1336 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1337 | if (getsockname (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1338 | SCM_SYSERROR; |
f43f3620 LC |
1339 | |
1340 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1341 | } |
1bbd0b84 | 1342 | #undef FUNC_NAME |
0f2d19dd | 1343 | |
a1ec6916 | 1344 | SCM_DEFINE (scm_getpeername, "getpeername", 1, 0, 0, |
1bbd0b84 | 1345 | (SCM sock), |
eefae538 | 1346 | "Return the address that @var{sock}\n" |
1e6808ea MG |
1347 | "is connected to, in the same form as the object returned by\n" |
1348 | "@code{accept}. On many systems the address of a socket in the\n" | |
1349 | "@code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1350 | #define FUNC_NAME s_scm_getpeername |
0f2d19dd | 1351 | { |
370312ae | 1352 | int fd; |
5ee417fc | 1353 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1354 | scm_t_max_sockaddr addr; |
439006bf | 1355 | |
78446828 | 1356 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1357 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1358 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1359 | if (getpeername (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1360 | SCM_SYSERROR; |
f43f3620 LC |
1361 | |
1362 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1363 | } |
1bbd0b84 | 1364 | #undef FUNC_NAME |
0f2d19dd | 1365 | |
a1ec6916 | 1366 | SCM_DEFINE (scm_recv, "recv!", 2, 1, 0, |
1bbd0b84 | 1367 | (SCM sock, SCM buf, SCM flags), |
eefae538 GH |
1368 | "Receive data from a socket port.\n" |
1369 | "@var{sock} must already\n" | |
b380b885 MD |
1370 | "be bound to the address from which data is to be received.\n" |
1371 | "@var{buf} is a string into which\n" | |
eefae538 GH |
1372 | "the data will be written. The size of @var{buf} limits\n" |
1373 | "the amount of\n" | |
b380b885 | 1374 | "data which can be received: in the case of packet\n" |
eefae538 GH |
1375 | "protocols, if a packet larger than this limit is encountered\n" |
1376 | "then some data\n" | |
b380b885 | 1377 | "will be irrevocably lost.\n\n" |
587a3355 MG |
1378 | "The data is assumed to be binary, and there is no decoding of\n" |
1379 | "of locale-encoded strings.\n\n" | |
b380b885 MD |
1380 | "The optional @var{flags} argument is a value or\n" |
1381 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" | |
eefae538 GH |
1382 | "The value returned is the number of bytes read from the\n" |
1383 | "socket.\n\n" | |
1384 | "Note that the data is read directly from the socket file\n" | |
1385 | "descriptor:\n" | |
09831f94 | 1386 | "any unread buffered port data is ignored.") |
1bbd0b84 | 1387 | #define FUNC_NAME s_scm_recv |
0f2d19dd | 1388 | { |
370312ae GH |
1389 | int rv; |
1390 | int fd; | |
1391 | int flg; | |
cc95e00a MV |
1392 | char *dest; |
1393 | size_t len; | |
587a3355 | 1394 | SCM msg; |
370312ae | 1395 | |
34d19ef6 HWN |
1396 | SCM_VALIDATE_OPFPORT (1, sock); |
1397 | SCM_VALIDATE_STRING (2, buf); | |
7cee5b31 MV |
1398 | if (SCM_UNBNDP (flags)) |
1399 | flg = 0; | |
1400 | else | |
1401 | flg = scm_to_int (flags); | |
ee149d03 | 1402 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1403 | |
587a3355 MG |
1404 | len = scm_i_string_length (buf); |
1405 | msg = scm_i_make_string (len, &dest); | |
cc95e00a | 1406 | SCM_SYSCALL (rv = recv (fd, dest, len, flg)); |
587a3355 MG |
1407 | scm_string_copy_x (buf, scm_from_int (0), |
1408 | msg, scm_from_int (0), scm_from_size_t (len)); | |
cc95e00a | 1409 | |
370312ae | 1410 | if (rv == -1) |
1bbd0b84 | 1411 | SCM_SYSERROR; |
370312ae | 1412 | |
587a3355 | 1413 | scm_remember_upto_here_2 (buf, msg); |
7cee5b31 | 1414 | return scm_from_int (rv); |
370312ae | 1415 | } |
1bbd0b84 | 1416 | #undef FUNC_NAME |
370312ae | 1417 | |
a1ec6916 | 1418 | SCM_DEFINE (scm_send, "send", 2, 1, 0, |
1bbd0b84 | 1419 | (SCM sock, SCM message, SCM flags), |
eefae538 GH |
1420 | "Transmit the string @var{message} on a socket port @var{sock}.\n" |
1421 | "@var{sock} must already be bound to a destination address. The\n" | |
1422 | "value returned is the number of bytes transmitted --\n" | |
1423 | "it's possible for\n" | |
1424 | "this to be less than the length of @var{message}\n" | |
1425 | "if the socket is\n" | |
1426 | "set to be non-blocking. The optional @var{flags} argument\n" | |
1427 | "is a value or\n" | |
b380b885 | 1428 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1429 | "Note that the data is written directly to the socket\n" |
1430 | "file descriptor:\n" | |
587a3355 MG |
1431 | "any unflushed buffered port data is ignored.\n\n" |
1432 | "This operation is defined only for strings containing codepoints\n" | |
1433 | "zero to 255.") | |
1bbd0b84 | 1434 | #define FUNC_NAME s_scm_send |
370312ae GH |
1435 | { |
1436 | int rv; | |
1437 | int fd; | |
1438 | int flg; | |
587a3355 | 1439 | char *src; |
cc95e00a | 1440 | size_t len; |
370312ae | 1441 | |
78446828 | 1442 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1443 | SCM_VALIDATE_OPFPORT (1, sock); |
a6d9e5ab | 1444 | SCM_VALIDATE_STRING (2, message); |
587a3355 MG |
1445 | |
1446 | /* If the string is wide, see if it can be coerced into | |
1447 | a narrow string. */ | |
1448 | if (!scm_i_is_narrow_string (message) | |
1449 | || scm_i_try_narrow_string (message)) | |
1450 | SCM_MISC_ERROR ("the message string is not 8-bit: ~s", | |
1451 | scm_list_1 (message)); | |
1452 | ||
7cee5b31 MV |
1453 | if (SCM_UNBNDP (flags)) |
1454 | flg = 0; | |
1455 | else | |
1456 | flg = scm_to_int (flags); | |
ee149d03 | 1457 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1458 | |
cc95e00a | 1459 | len = scm_i_string_length (message); |
9c44cd45 | 1460 | message = scm_i_string_start_writing (message); |
cc95e00a MV |
1461 | src = scm_i_string_writable_chars (message); |
1462 | SCM_SYSCALL (rv = send (fd, src, len, flg)); | |
1463 | scm_i_string_stop_writing (); | |
1464 | ||
370312ae | 1465 | if (rv == -1) |
1bbd0b84 | 1466 | SCM_SYSERROR; |
396e5506 MV |
1467 | |
1468 | scm_remember_upto_here_1 (message); | |
7cee5b31 | 1469 | return scm_from_int (rv); |
370312ae | 1470 | } |
1bbd0b84 | 1471 | #undef FUNC_NAME |
370312ae | 1472 | |
a1ec6916 | 1473 | SCM_DEFINE (scm_recvfrom, "recvfrom!", 2, 3, 0, |
60d02d09 | 1474 | (SCM sock, SCM str, SCM flags, SCM start, SCM end), |
8ab3d8a0 KR |
1475 | "Receive data from socket port @var{sock} (which must be already\n" |
1476 | "bound), returning the originating address as well as the data.\n" | |
1477 | "This is usually for use on datagram sockets, but can be used on\n" | |
1478 | "stream-oriented sockets too.\n" | |
1479 | "\n" | |
1480 | "The data received is stored in the given @var{str}, using\n" | |
1481 | "either the whole string or just the region between the optional\n" | |
1482 | "@var{start} and @var{end} positions. The size of @var{str}\n" | |
1483 | "limits the amount of data which can be received. For datagram\n" | |
1484 | "protocols, if a packet larger than this is received then excess\n" | |
1485 | "bytes are irrevocably lost.\n" | |
1486 | "\n" | |
1487 | "The return value is a pair. The @code{car} is the number of\n" | |
1488 | "bytes read. The @code{cdr} is a socket address object which is\n" | |
1489 | "where the data come from, or @code{#f} if the origin is\n" | |
1490 | "unknown.\n" | |
1491 | "\n" | |
1492 | "The optional @var{flags} argument is a or bitwise OR\n" | |
1493 | "(@code{logior}) of @code{MSG_OOB}, @code{MSG_PEEK},\n" | |
1494 | "@code{MSG_DONTROUTE} etc.\n" | |
1495 | "\n" | |
1496 | "Data is read directly from the socket file descriptor, any\n" | |
1497 | "buffered port data is ignored.\n" | |
1498 | "\n" | |
1499 | "On a GNU/Linux system @code{recvfrom!} is not multi-threading,\n" | |
1500 | "all threads stop while a @code{recvfrom!} call is in progress.\n" | |
1501 | "An application may need to use @code{select}, @code{O_NONBLOCK}\n" | |
1502 | "or @code{MSG_DONTWAIT} to avoid this.") | |
1bbd0b84 | 1503 | #define FUNC_NAME s_scm_recvfrom |
370312ae GH |
1504 | { |
1505 | int rv; | |
1506 | int fd; | |
1507 | int flg; | |
60d02d09 | 1508 | char *buf; |
396e5506 MV |
1509 | size_t offset; |
1510 | size_t cend; | |
370312ae | 1511 | SCM address; |
5ee417fc | 1512 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1513 | scm_t_max_sockaddr addr; |
370312ae | 1514 | |
34d19ef6 | 1515 | SCM_VALIDATE_OPFPORT (1, sock); |
60d02d09 | 1516 | fd = SCM_FPORT_FDES (sock); |
396e5506 MV |
1517 | |
1518 | SCM_VALIDATE_STRING (2, str); | |
cc95e00a | 1519 | scm_i_get_substring_spec (scm_i_string_length (str), |
396e5506 MV |
1520 | start, &offset, end, &cend); |
1521 | ||
1146b6cd GH |
1522 | if (SCM_UNBNDP (flags)) |
1523 | flg = 0; | |
370312ae | 1524 | else |
60d02d09 | 1525 | SCM_VALIDATE_ULONG_COPY (3, flags, flg); |
370312ae | 1526 | |
97d0e20b GH |
1527 | /* recvfrom will not necessarily return an address. usually nothing |
1528 | is returned for stream sockets. */ | |
9c44cd45 | 1529 | str = scm_i_string_start_writing (str); |
cc95e00a | 1530 | buf = scm_i_string_writable_chars (str); |
f43f3620 | 1531 | ((struct sockaddr *) &addr)->sa_family = AF_UNSPEC; |
60d02d09 | 1532 | SCM_SYSCALL (rv = recvfrom (fd, buf + offset, |
1146b6cd | 1533 | cend - offset, flg, |
f43f3620 | 1534 | (struct sockaddr *) &addr, &addr_size)); |
cc95e00a MV |
1535 | scm_i_string_stop_writing (); |
1536 | ||
370312ae | 1537 | if (rv == -1) |
1bbd0b84 | 1538 | SCM_SYSERROR; |
f43f3620 LC |
1539 | if (((struct sockaddr *) &addr)->sa_family != AF_UNSPEC) |
1540 | address = _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
370312ae GH |
1541 | else |
1542 | address = SCM_BOOL_F; | |
1543 | ||
396e5506 | 1544 | scm_remember_upto_here_1 (str); |
f43f3620 | 1545 | |
e11e83f3 | 1546 | return scm_cons (scm_from_int (rv), address); |
0f2d19dd | 1547 | } |
1bbd0b84 | 1548 | #undef FUNC_NAME |
0f2d19dd | 1549 | |
9c0129ac KR |
1550 | SCM_DEFINE (scm_sendto, "sendto", 3, 1, 1, |
1551 | (SCM sock, SCM message, SCM fam_or_sockaddr, SCM address, SCM args_and_flags), | |
eefae538 GH |
1552 | "Transmit the string @var{message} on the socket port\n" |
1553 | "@var{sock}. The\n" | |
1554 | "destination address is specified using the @var{fam},\n" | |
1555 | "@var{address} and\n" | |
9c0129ac KR |
1556 | "@var{args_and_flags} arguments, or just a socket address object " |
1557 | "returned by @code{make-socket-address}, in a similar way to the\n" | |
eefae538 GH |
1558 | "@code{connect} procedure. @var{args_and_flags} contains\n" |
1559 | "the usual connection arguments optionally followed by\n" | |
1560 | "a flags argument, which is a value or\n" | |
b380b885 | 1561 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1562 | "The value returned is the number of bytes transmitted --\n" |
1563 | "it's possible for\n" | |
1564 | "this to be less than the length of @var{message} if the\n" | |
1565 | "socket is\n" | |
1566 | "set to be non-blocking.\n" | |
1567 | "Note that the data is written directly to the socket\n" | |
1568 | "file descriptor:\n" | |
587a3355 MG |
1569 | "any unflushed buffered port data is ignored.\n" |
1570 | "This operation is defined only for strings containing codepoints\n" | |
1571 | "zero to 255.") | |
1bbd0b84 | 1572 | #define FUNC_NAME s_scm_sendto |
370312ae GH |
1573 | { |
1574 | int rv; | |
1575 | int fd; | |
1576 | int flg; | |
1577 | struct sockaddr *soka; | |
9c0129ac | 1578 | size_t size; |
370312ae | 1579 | |
78446828 | 1580 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1581 | SCM_VALIDATE_FPORT (1, sock); |
a6d9e5ab | 1582 | SCM_VALIDATE_STRING (2, message); |
ee149d03 | 1583 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
1584 | |
1585 | if (!scm_is_number (fam_or_sockaddr)) | |
1586 | { | |
1587 | /* FAM_OR_SOCKADDR must actually be a `socket address' object. This | |
1588 | means that the following arguments, i.e. ADDRESS and those listed in | |
1589 | ARGS_AND_FLAGS, are the `MSG_' flags. */ | |
1590 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
1591 | if (address != SCM_UNDEFINED) | |
1592 | args_and_flags = scm_cons (address, args_and_flags); | |
1593 | } | |
1594 | else | |
1595 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
1596 | &args_and_flags, 3, FUNC_NAME, &size); | |
1597 | ||
d2e53ed6 | 1598 | if (scm_is_null (args_and_flags)) |
370312ae GH |
1599 | flg = 0; |
1600 | else | |
1601 | { | |
34d19ef6 | 1602 | SCM_VALIDATE_CONS (5, args_and_flags); |
e4b265d8 | 1603 | flg = SCM_NUM2ULONG (5, SCM_CAR (args_and_flags)); |
370312ae | 1604 | } |
396e5506 | 1605 | SCM_SYSCALL (rv = sendto (fd, |
cc95e00a MV |
1606 | scm_i_string_chars (message), |
1607 | scm_i_string_length (message), | |
ae2fa5bc | 1608 | flg, soka, size)); |
370312ae | 1609 | if (rv == -1) |
439006bf GH |
1610 | { |
1611 | int save_errno = errno; | |
1612 | free (soka); | |
1613 | errno = save_errno; | |
1614 | SCM_SYSERROR; | |
1615 | } | |
1616 | free (soka); | |
396e5506 MV |
1617 | |
1618 | scm_remember_upto_here_1 (message); | |
e11e83f3 | 1619 | return scm_from_int (rv); |
370312ae | 1620 | } |
1bbd0b84 | 1621 | #undef FUNC_NAME |
370312ae GH |
1622 | \f |
1623 | ||
1624 | ||
1625 | void | |
0f2d19dd | 1626 | scm_init_socket () |
0f2d19dd | 1627 | { |
370312ae GH |
1628 | /* protocol families. */ |
1629 | #ifdef AF_UNSPEC | |
e11e83f3 | 1630 | scm_c_define ("AF_UNSPEC", scm_from_int (AF_UNSPEC)); |
370312ae GH |
1631 | #endif |
1632 | #ifdef AF_UNIX | |
e11e83f3 | 1633 | scm_c_define ("AF_UNIX", scm_from_int (AF_UNIX)); |
370312ae GH |
1634 | #endif |
1635 | #ifdef AF_INET | |
e11e83f3 | 1636 | scm_c_define ("AF_INET", scm_from_int (AF_INET)); |
370312ae | 1637 | #endif |
3453619b | 1638 | #ifdef AF_INET6 |
e11e83f3 | 1639 | scm_c_define ("AF_INET6", scm_from_int (AF_INET6)); |
3453619b | 1640 | #endif |
370312ae GH |
1641 | |
1642 | #ifdef PF_UNSPEC | |
e11e83f3 | 1643 | scm_c_define ("PF_UNSPEC", scm_from_int (PF_UNSPEC)); |
370312ae GH |
1644 | #endif |
1645 | #ifdef PF_UNIX | |
e11e83f3 | 1646 | scm_c_define ("PF_UNIX", scm_from_int (PF_UNIX)); |
370312ae GH |
1647 | #endif |
1648 | #ifdef PF_INET | |
e11e83f3 | 1649 | scm_c_define ("PF_INET", scm_from_int (PF_INET)); |
370312ae | 1650 | #endif |
3453619b | 1651 | #ifdef PF_INET6 |
e11e83f3 | 1652 | scm_c_define ("PF_INET6", scm_from_int (PF_INET6)); |
3453619b | 1653 | #endif |
370312ae | 1654 | |
66c73b76 GH |
1655 | /* standard addresses. */ |
1656 | #ifdef INADDR_ANY | |
b9bd8526 | 1657 | scm_c_define ("INADDR_ANY", scm_from_ulong (INADDR_ANY)); |
66c73b76 GH |
1658 | #endif |
1659 | #ifdef INADDR_BROADCAST | |
b9bd8526 | 1660 | scm_c_define ("INADDR_BROADCAST", scm_from_ulong (INADDR_BROADCAST)); |
66c73b76 GH |
1661 | #endif |
1662 | #ifdef INADDR_NONE | |
b9bd8526 | 1663 | scm_c_define ("INADDR_NONE", scm_from_ulong (INADDR_NONE)); |
66c73b76 GH |
1664 | #endif |
1665 | #ifdef INADDR_LOOPBACK | |
b9bd8526 | 1666 | scm_c_define ("INADDR_LOOPBACK", scm_from_ulong (INADDR_LOOPBACK)); |
66c73b76 GH |
1667 | #endif |
1668 | ||
6f637a1b KR |
1669 | /* socket types. |
1670 | ||
1671 | SOCK_PACKET is deliberately omitted, the GNU/Linux socket(2) and | |
1672 | packet(7) advise that it's obsolete and strongly deprecated. */ | |
1673 | ||
370312ae | 1674 | #ifdef SOCK_STREAM |
e11e83f3 | 1675 | scm_c_define ("SOCK_STREAM", scm_from_int (SOCK_STREAM)); |
370312ae GH |
1676 | #endif |
1677 | #ifdef SOCK_DGRAM | |
e11e83f3 | 1678 | scm_c_define ("SOCK_DGRAM", scm_from_int (SOCK_DGRAM)); |
370312ae | 1679 | #endif |
6f637a1b KR |
1680 | #ifdef SOCK_SEQPACKET |
1681 | scm_c_define ("SOCK_SEQPACKET", scm_from_int (SOCK_SEQPACKET)); | |
1682 | #endif | |
370312ae | 1683 | #ifdef SOCK_RAW |
e11e83f3 | 1684 | scm_c_define ("SOCK_RAW", scm_from_int (SOCK_RAW)); |
370312ae | 1685 | #endif |
6f637a1b KR |
1686 | #ifdef SOCK_RDM |
1687 | scm_c_define ("SOCK_RDM", scm_from_int (SOCK_RDM)); | |
1688 | #endif | |
370312ae | 1689 | |
8fae2bf4 KR |
1690 | /* setsockopt level. |
1691 | ||
1692 | SOL_IP, SOL_TCP and SOL_UDP are defined on gnu/linux, but not on for | |
1693 | instance NetBSD. We define IPPROTOs because that's what the posix spec | |
1694 | shows in its example at | |
1695 | ||
1696 | http://www.opengroup.org/onlinepubs/007904975/functions/getsockopt.html | |
1697 | */ | |
370312ae | 1698 | #ifdef SOL_SOCKET |
e11e83f3 | 1699 | scm_c_define ("SOL_SOCKET", scm_from_int (SOL_SOCKET)); |
370312ae | 1700 | #endif |
8fae2bf4 KR |
1701 | #ifdef IPPROTO_IP |
1702 | scm_c_define ("IPPROTO_IP", scm_from_int (IPPROTO_IP)); | |
370312ae | 1703 | #endif |
8fae2bf4 KR |
1704 | #ifdef IPPROTO_TCP |
1705 | scm_c_define ("IPPROTO_TCP", scm_from_int (IPPROTO_TCP)); | |
370312ae | 1706 | #endif |
8fae2bf4 KR |
1707 | #ifdef IPPROTO_UDP |
1708 | scm_c_define ("IPPROTO_UDP", scm_from_int (IPPROTO_UDP)); | |
370312ae GH |
1709 | #endif |
1710 | ||
1711 | /* setsockopt names. */ | |
1712 | #ifdef SO_DEBUG | |
e11e83f3 | 1713 | scm_c_define ("SO_DEBUG", scm_from_int (SO_DEBUG)); |
370312ae GH |
1714 | #endif |
1715 | #ifdef SO_REUSEADDR | |
e11e83f3 | 1716 | scm_c_define ("SO_REUSEADDR", scm_from_int (SO_REUSEADDR)); |
370312ae GH |
1717 | #endif |
1718 | #ifdef SO_STYLE | |
e11e83f3 | 1719 | scm_c_define ("SO_STYLE", scm_from_int (SO_STYLE)); |
370312ae GH |
1720 | #endif |
1721 | #ifdef SO_TYPE | |
e11e83f3 | 1722 | scm_c_define ("SO_TYPE", scm_from_int (SO_TYPE)); |
370312ae GH |
1723 | #endif |
1724 | #ifdef SO_ERROR | |
e11e83f3 | 1725 | scm_c_define ("SO_ERROR", scm_from_int (SO_ERROR)); |
370312ae GH |
1726 | #endif |
1727 | #ifdef SO_DONTROUTE | |
e11e83f3 | 1728 | scm_c_define ("SO_DONTROUTE", scm_from_int (SO_DONTROUTE)); |
370312ae GH |
1729 | #endif |
1730 | #ifdef SO_BROADCAST | |
e11e83f3 | 1731 | scm_c_define ("SO_BROADCAST", scm_from_int (SO_BROADCAST)); |
370312ae GH |
1732 | #endif |
1733 | #ifdef SO_SNDBUF | |
e11e83f3 | 1734 | scm_c_define ("SO_SNDBUF", scm_from_int (SO_SNDBUF)); |
370312ae GH |
1735 | #endif |
1736 | #ifdef SO_RCVBUF | |
e11e83f3 | 1737 | scm_c_define ("SO_RCVBUF", scm_from_int (SO_RCVBUF)); |
370312ae GH |
1738 | #endif |
1739 | #ifdef SO_KEEPALIVE | |
e11e83f3 | 1740 | scm_c_define ("SO_KEEPALIVE", scm_from_int (SO_KEEPALIVE)); |
370312ae GH |
1741 | #endif |
1742 | #ifdef SO_OOBINLINE | |
e11e83f3 | 1743 | scm_c_define ("SO_OOBINLINE", scm_from_int (SO_OOBINLINE)); |
370312ae GH |
1744 | #endif |
1745 | #ifdef SO_NO_CHECK | |
e11e83f3 | 1746 | scm_c_define ("SO_NO_CHECK", scm_from_int (SO_NO_CHECK)); |
370312ae GH |
1747 | #endif |
1748 | #ifdef SO_PRIORITY | |
e11e83f3 | 1749 | scm_c_define ("SO_PRIORITY", scm_from_int (SO_PRIORITY)); |
370312ae GH |
1750 | #endif |
1751 | #ifdef SO_LINGER | |
e11e83f3 | 1752 | scm_c_define ("SO_LINGER", scm_from_int (SO_LINGER)); |
370312ae GH |
1753 | #endif |
1754 | ||
1755 | /* recv/send options. */ | |
8ab3d8a0 KR |
1756 | #ifdef MSG_DONTWAIT |
1757 | scm_c_define ("MSG_DONTWAIT", scm_from_int (MSG_DONTWAIT)); | |
1758 | #endif | |
370312ae | 1759 | #ifdef MSG_OOB |
e11e83f3 | 1760 | scm_c_define ("MSG_OOB", scm_from_int (MSG_OOB)); |
370312ae GH |
1761 | #endif |
1762 | #ifdef MSG_PEEK | |
e11e83f3 | 1763 | scm_c_define ("MSG_PEEK", scm_from_int (MSG_PEEK)); |
370312ae GH |
1764 | #endif |
1765 | #ifdef MSG_DONTROUTE | |
e11e83f3 | 1766 | scm_c_define ("MSG_DONTROUTE", scm_from_int (MSG_DONTROUTE)); |
370312ae GH |
1767 | #endif |
1768 | ||
b4e15479 SJ |
1769 | #ifdef __MINGW32__ |
1770 | scm_i_init_socket_Win32 (); | |
1771 | #endif | |
1772 | ||
1c80707c MV |
1773 | #ifdef IP_ADD_MEMBERSHIP |
1774 | scm_c_define ("IP_ADD_MEMBERSHIP", scm_from_int (IP_ADD_MEMBERSHIP)); | |
1775 | scm_c_define ("IP_DROP_MEMBERSHIP", scm_from_int (IP_DROP_MEMBERSHIP)); | |
1776 | #endif | |
1777 | ||
511246a1 TCM |
1778 | #ifdef IP_MULTICAST_TTL |
1779 | scm_c_define ("IP_MULTICAST_TTL", scm_from_int ( IP_MULTICAST_TTL)); | |
1780 | #endif | |
1781 | ||
1782 | #ifdef IP_MULTICAST_IF | |
1783 | scm_c_define ("IP_MULTICAST_IF", scm_from_int ( IP_MULTICAST_IF)); | |
1784 | #endif | |
1785 | ||
0f2d19dd | 1786 | scm_add_feature ("socket"); |
370312ae | 1787 | |
a0599745 | 1788 | #include "libguile/socket.x" |
0f2d19dd JB |
1789 | } |
1790 | ||
89e00824 ML |
1791 | |
1792 | /* | |
1793 | Local Variables: | |
1794 | c-file-style: "gnu" | |
1795 | End: | |
1796 | */ |