Commit | Line | Data |
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d21a1dc8 | 1 | /* Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, |
09b204d3 | 2 | * 2006, 2007, 2009, 2011, 2012, 2013 Free Software Foundation, Inc. |
d21a1dc8 | 3 | * |
73be1d9e | 4 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
5 | * modify it under the terms of the GNU Lesser General Public License |
6 | * as published by the Free Software Foundation; either version 3 of | |
7 | * the License, or (at your option) any later version. | |
86667910 | 8 | * |
53befeb7 NJ |
9 | * This library is distributed in the hope that it will be useful, but |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. | |
86667910 | 13 | * |
73be1d9e MV |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
17 | * 02110-1301 USA | |
73be1d9e | 18 | */ |
1bbd0b84 | 19 | |
1bbd0b84 | 20 | |
0f2d19dd JB |
21 | \f |
22 | ||
dbb605f5 | 23 | #ifdef HAVE_CONFIG_H |
eccde741 RB |
24 | # include <config.h> |
25 | #endif | |
26 | ||
e6e2e95a | 27 | #include <errno.h> |
cc948107 | 28 | #include <verify.h> |
e6e2e95a | 29 | |
af68e5e5 SJ |
30 | #ifdef HAVE_STDINT_H |
31 | #include <stdint.h> | |
32 | #endif | |
95b88819 GH |
33 | #ifdef HAVE_STRING_H |
34 | #include <string.h> | |
35 | #endif | |
370312ae GH |
36 | #ifdef HAVE_UNISTD_H |
37 | #include <unistd.h> | |
38 | #endif | |
0f2d19dd JB |
39 | #include <sys/types.h> |
40 | #include <sys/socket.h> | |
1ba8c23a | 41 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
0f2d19dd | 42 | #include <sys/un.h> |
0e958795 | 43 | #endif |
0f2d19dd JB |
44 | #include <netinet/in.h> |
45 | #include <netdb.h> | |
46 | #include <arpa/inet.h> | |
09b204d3 | 47 | |
b0dbbacb AW |
48 | #include <gmp.h> |
49 | ||
50 | #include "libguile/_scm.h" | |
51 | #include "libguile/arrays.h" | |
52 | #include "libguile/feature.h" | |
53 | #include "libguile/fports.h" | |
54 | #include "libguile/strings.h" | |
55 | #include "libguile/vectors.h" | |
56 | #include "libguile/dynwind.h" | |
57 | #include "libguile/srfi-13.h" | |
58 | ||
59 | #include "libguile/validate.h" | |
60 | #include "libguile/socket.h" | |
61 | ||
62 | #if SCM_ENABLE_DEPRECATED == 1 | |
63 | # include "libguile/deprecation.h" | |
82893676 | 64 | #endif |
0f2d19dd | 65 | |
b0dbbacb | 66 | |
0f2d19dd | 67 | |
97d0e20b GH |
68 | #if defined (HAVE_UNIX_DOMAIN_SOCKETS) && !defined (SUN_LEN) |
69 | #define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) \ | |
70 | + strlen ((ptr)->sun_path)) | |
71 | #endif | |
72 | ||
f43f3620 LC |
73 | /* The largest possible socket address. Wrapping it in a union guarantees |
74 | that the compiler will make it suitably aligned. */ | |
75 | typedef union | |
76 | { | |
77 | struct sockaddr sockaddr; | |
78 | struct sockaddr_in sockaddr_in; | |
79 | ||
80 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
81 | struct sockaddr_un sockaddr_un; | |
82 | #endif | |
83 | #ifdef HAVE_IPV6 | |
84 | struct sockaddr_in6 sockaddr_in6; | |
85 | #endif | |
86 | } scm_t_max_sockaddr; | |
87 | ||
88 | ||
89 | /* Maximum size of a socket address. */ | |
90 | #define MAX_ADDR_SIZE (sizeof (scm_t_max_sockaddr)) | |
91 | ||
92 | ||
0f2d19dd JB |
93 | \f |
94 | ||
a1ec6916 | 95 | SCM_DEFINE (scm_htons, "htons", 1, 0, 0, |
eefae538 GH |
96 | (SCM value), |
97 | "Convert a 16 bit quantity from host to network byte ordering.\n" | |
98 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
99 | "and returned as a new integer.") | |
1bbd0b84 | 100 | #define FUNC_NAME s_scm_htons |
5c11cc9d | 101 | { |
7cee5b31 | 102 | return scm_from_ushort (htons (scm_to_ushort (value))); |
5c11cc9d | 103 | } |
1bbd0b84 | 104 | #undef FUNC_NAME |
5c11cc9d | 105 | |
a1ec6916 | 106 | SCM_DEFINE (scm_ntohs, "ntohs", 1, 0, 0, |
eefae538 GH |
107 | (SCM value), |
108 | "Convert a 16 bit quantity from network to host byte ordering.\n" | |
109 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
110 | "and returned as a new integer.") | |
1bbd0b84 | 111 | #define FUNC_NAME s_scm_ntohs |
5c11cc9d | 112 | { |
7cee5b31 | 113 | return scm_from_ushort (ntohs (scm_to_ushort (value))); |
5c11cc9d | 114 | } |
1bbd0b84 | 115 | #undef FUNC_NAME |
5c11cc9d | 116 | |
a1ec6916 | 117 | SCM_DEFINE (scm_htonl, "htonl", 1, 0, 0, |
eefae538 GH |
118 | (SCM value), |
119 | "Convert a 32 bit quantity from host to network byte ordering.\n" | |
120 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
121 | "and returned as a new integer.") | |
1bbd0b84 | 122 | #define FUNC_NAME s_scm_htonl |
5c11cc9d | 123 | { |
8ab3d8a0 | 124 | return scm_from_ulong (htonl (scm_to_uint32 (value))); |
5c11cc9d | 125 | } |
1bbd0b84 | 126 | #undef FUNC_NAME |
5c11cc9d | 127 | |
a1ec6916 | 128 | SCM_DEFINE (scm_ntohl, "ntohl", 1, 0, 0, |
eefae538 GH |
129 | (SCM value), |
130 | "Convert a 32 bit quantity from network to host byte ordering.\n" | |
131 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
132 | "and returned as a new integer.") | |
1bbd0b84 | 133 | #define FUNC_NAME s_scm_ntohl |
5c11cc9d | 134 | { |
8ab3d8a0 | 135 | return scm_from_ulong (ntohl (scm_to_uint32 (value))); |
5c11cc9d | 136 | } |
1bbd0b84 | 137 | #undef FUNC_NAME |
5c11cc9d | 138 | |
66c73b76 GH |
139 | #ifdef HAVE_INET_NETOF |
140 | SCM_DEFINE (scm_inet_netof, "inet-netof", 1, 0, 0, | |
141 | (SCM address), | |
eefae538 GH |
142 | "Return the network number part of the given IPv4\n" |
143 | "Internet address. E.g.,\n\n" | |
66c73b76 GH |
144 | "@lisp\n" |
145 | "(inet-netof 2130706433) @result{} 127\n" | |
146 | "@end lisp") | |
147 | #define FUNC_NAME s_scm_inet_netof | |
148 | { | |
149 | struct in_addr addr; | |
150 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
b9bd8526 | 151 | return scm_from_ulong (inet_netof (addr)); |
66c73b76 GH |
152 | } |
153 | #undef FUNC_NAME | |
154 | #endif | |
155 | ||
156 | #ifdef HAVE_INET_LNAOF | |
157 | SCM_DEFINE (scm_lnaof, "inet-lnaof", 1, 0, 0, | |
158 | (SCM address), | |
159 | "Return the local-address-with-network part of the given\n" | |
eefae538 GH |
160 | "IPv4 Internet address, using the obsolete class A/B/C system.\n" |
161 | "E.g.,\n\n" | |
66c73b76 GH |
162 | "@lisp\n" |
163 | "(inet-lnaof 2130706433) @result{} 1\n" | |
164 | "@end lisp") | |
165 | #define FUNC_NAME s_scm_lnaof | |
166 | { | |
167 | struct in_addr addr; | |
168 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
b9bd8526 | 169 | return scm_from_ulong (inet_lnaof (addr)); |
66c73b76 GH |
170 | } |
171 | #undef FUNC_NAME | |
172 | #endif | |
173 | ||
174 | #ifdef HAVE_INET_MAKEADDR | |
175 | SCM_DEFINE (scm_inet_makeaddr, "inet-makeaddr", 2, 0, 0, | |
176 | (SCM net, SCM lna), | |
eefae538 | 177 | "Make an IPv4 Internet address by combining the network number\n" |
66c73b76 | 178 | "@var{net} with the local-address-within-network number\n" |
eefae538 | 179 | "@var{lna}. E.g.,\n\n" |
66c73b76 GH |
180 | "@lisp\n" |
181 | "(inet-makeaddr 127 1) @result{} 2130706433\n" | |
182 | "@end lisp") | |
183 | #define FUNC_NAME s_scm_inet_makeaddr | |
184 | { | |
185 | struct in_addr addr; | |
186 | unsigned long netnum; | |
187 | unsigned long lnanum; | |
188 | ||
189 | netnum = SCM_NUM2ULONG (1, net); | |
190 | lnanum = SCM_NUM2ULONG (2, lna); | |
191 | addr = inet_makeaddr (netnum, lnanum); | |
b9bd8526 | 192 | return scm_from_ulong (ntohl (addr.s_addr)); |
66c73b76 GH |
193 | } |
194 | #undef FUNC_NAME | |
195 | #endif | |
196 | ||
a57a0b1e | 197 | #ifdef HAVE_IPV6 |
eefae538 | 198 | |
66c73b76 GH |
199 | /* flip a 128 bit IPv6 address between host and network order. */ |
200 | #ifdef WORDS_BIGENDIAN | |
201 | #define FLIP_NET_HOST_128(addr) | |
202 | #else | |
203 | #define FLIP_NET_HOST_128(addr)\ | |
204 | {\ | |
205 | int i;\ | |
206 | \ | |
207 | for (i = 0; i < 8; i++)\ | |
208 | {\ | |
2de4f939 | 209 | scm_t_uint8 c = (addr)[i];\ |
66c73b76 GH |
210 | \ |
211 | (addr)[i] = (addr)[15 - i];\ | |
212 | (addr)[15 - i] = c;\ | |
213 | }\ | |
214 | } | |
215 | #endif | |
216 | ||
2de4f939 RB |
217 | #ifdef WORDS_BIGENDIAN |
218 | #define FLIPCPY_NET_HOST_128(dest, src) memcpy (dest, src, 16) | |
219 | #else | |
220 | #define FLIPCPY_NET_HOST_128(dest, src) \ | |
221 | { \ | |
222 | const scm_t_uint8 *tmp_srcp = (src) + 15; \ | |
223 | scm_t_uint8 *tmp_destp = (dest); \ | |
224 | \ | |
225 | do { \ | |
226 | *tmp_destp++ = *tmp_srcp--; \ | |
227 | } while (tmp_srcp != (src)); \ | |
228 | } | |
229 | #endif | |
230 | ||
231 | ||
7310ad0c | 232 | #if (SIZEOF_SCM_T_BITS * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
233 | #error "Assumption that scm_t_bits <= 128 bits has been violated." |
234 | #endif | |
235 | ||
7310ad0c | 236 | #if (SIZEOF_UNSIGNED_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
237 | #error "Assumption that unsigned long <= 128 bits has been violated." |
238 | #endif | |
239 | ||
7310ad0c | 240 | #if (SIZEOF_UNSIGNED_LONG_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
241 | #error "Assumption that unsigned long long <= 128 bits has been violated." |
242 | #endif | |
243 | ||
66c73b76 GH |
244 | /* convert a 128 bit IPv6 address in network order to a host ordered |
245 | SCM integer. */ | |
7cee5b31 MV |
246 | static SCM |
247 | scm_from_ipv6 (const scm_t_uint8 *src) | |
66c73b76 | 248 | { |
2b4d1547 KR |
249 | SCM result = scm_i_mkbig (); |
250 | mpz_import (SCM_I_BIG_MPZ (result), | |
251 | 1, /* chunk */ | |
252 | 1, /* big-endian chunk ordering */ | |
253 | 16, /* chunks are 16 bytes long */ | |
254 | 1, /* big-endian byte ordering */ | |
255 | 0, /* "nails" -- leading unused bits per chunk */ | |
256 | src); | |
257 | return scm_i_normbig (result); | |
258 | } | |
66c73b76 GH |
259 | |
260 | /* convert a host ordered SCM integer to a 128 bit IPv6 address in | |
261 | network order. */ | |
7cee5b31 MV |
262 | static void |
263 | scm_to_ipv6 (scm_t_uint8 dst[16], SCM src) | |
66c73b76 | 264 | { |
e11e83f3 | 265 | if (SCM_I_INUMP (src)) |
66c73b76 | 266 | { |
e11e83f3 | 267 | scm_t_signed_bits n = SCM_I_INUM (src); |
7cee5b31 MV |
268 | if (n < 0) |
269 | scm_out_of_range (NULL, src); | |
2de4f939 RB |
270 | #ifdef WORDS_BIGENDIAN |
271 | memset (dst, 0, 16 - sizeof (scm_t_signed_bits)); | |
272 | memcpy (dst + (16 - sizeof (scm_t_signed_bits)), | |
273 | &n, | |
274 | sizeof (scm_t_signed_bits)); | |
275 | #else | |
276 | memset (dst + sizeof (scm_t_signed_bits), | |
277 | 0, | |
278 | 16 - sizeof (scm_t_signed_bits)); | |
279 | /* FIXME: this pair of ops is kinda wasteful -- should rewrite as | |
280 | a single loop perhaps, similar to the handling of bignums. */ | |
281 | memcpy (dst, &n, sizeof (scm_t_signed_bits)); | |
282 | FLIP_NET_HOST_128 (dst); | |
283 | #endif | |
66c73b76 | 284 | } |
7cee5b31 | 285 | else if (SCM_BIGP (src)) |
66c73b76 | 286 | { |
2de4f939 | 287 | size_t count; |
7cee5b31 MV |
288 | |
289 | if ((mpz_sgn (SCM_I_BIG_MPZ (src)) < 0) | |
290 | || mpz_sizeinbase (SCM_I_BIG_MPZ (src), 2) > 128) | |
291 | scm_out_of_range (NULL, src); | |
292 | ||
66c73b76 | 293 | memset (dst, 0, 16); |
2de4f939 RB |
294 | mpz_export (dst, |
295 | &count, | |
296 | 1, /* big-endian chunk ordering */ | |
297 | 16, /* chunks are 16 bytes long */ | |
298 | 1, /* big-endian byte ordering */ | |
299 | 0, /* "nails" -- leading unused bits per chunk */ | |
300 | SCM_I_BIG_MPZ (src)); | |
301 | scm_remember_upto_here_1 (src); | |
66c73b76 | 302 | } |
2de4f939 | 303 | else |
1ff4da65 | 304 | scm_wrong_type_arg_msg ("scm_to_ipv6", 0, src, "integer"); |
2de4f939 RB |
305 | } |
306 | ||
e91f21dc | 307 | #endif /* HAVE_IPV6 */ |
66c73b76 | 308 | |
e91f21dc | 309 | \f |
66c73b76 | 310 | |
66c73b76 GH |
311 | SCM_DEFINE (scm_inet_ntop, "inet-ntop", 2, 0, 0, |
312 | (SCM family, SCM address), | |
eefae538 | 313 | "Convert a network address into a printable string.\n" |
66c73b76 GH |
314 | "Note that unlike the C version of this function,\n" |
315 | "the input is an integer with normal host byte ordering.\n" | |
eefae538 | 316 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" |
66c73b76 | 317 | "@lisp\n" |
dd85ce47 | 318 | "(inet-ntop AF_INET 2130706433) @result{} \"127.0.0.1\"\n" |
187a4390 NJ |
319 | "(inet-ntop AF_INET6 (- (expt 2 128) 1))\n" |
320 | " @result{} \"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\"\n" | |
66c73b76 GH |
321 | "@end lisp") |
322 | #define FUNC_NAME s_scm_inet_ntop | |
323 | { | |
324 | int af; | |
325 | #ifdef INET6_ADDRSTRLEN | |
326 | char dst[INET6_ADDRSTRLEN]; | |
327 | #else | |
328 | char dst[46]; | |
329 | #endif | |
7a5fb796 | 330 | const char *result; |
66c73b76 | 331 | |
7cee5b31 | 332 | af = scm_to_int (family); |
e91f21dc LC |
333 | SCM_ASSERT_RANGE (1, family, |
334 | af == AF_INET | |
335 | #ifdef HAVE_IPV6 | |
336 | || af == AF_INET6 | |
337 | #endif | |
338 | ); | |
66c73b76 | 339 | if (af == AF_INET) |
7a5fb796 LC |
340 | { |
341 | scm_t_uint32 addr4; | |
342 | ||
343 | addr4 = htonl (SCM_NUM2ULONG (2, address)); | |
344 | result = inet_ntop (af, &addr4, dst, sizeof (dst)); | |
345 | } | |
e91f21dc LC |
346 | #ifdef HAVE_IPV6 |
347 | else if (af == AF_INET6) | |
7a5fb796 LC |
348 | { |
349 | char addr6[16]; | |
350 | ||
351 | scm_to_ipv6 ((scm_t_uint8 *) addr6, address); | |
352 | result = inet_ntop (af, &addr6, dst, sizeof (dst)); | |
353 | } | |
e91f21dc LC |
354 | #endif |
355 | else | |
356 | SCM_MISC_ERROR ("unsupported address family", family); | |
7a5fb796 LC |
357 | |
358 | if (result == NULL) | |
66c73b76 | 359 | SCM_SYSERROR; |
7a5fb796 | 360 | |
cc95e00a | 361 | return scm_from_locale_string (dst); |
66c73b76 GH |
362 | } |
363 | #undef FUNC_NAME | |
66c73b76 | 364 | |
e91f21dc LC |
365 | SCM_DEFINE (scm_inet_pton, "inet-pton", 2, 0, 0, |
366 | (SCM family, SCM address), | |
367 | "Convert a string containing a printable network address to\n" | |
368 | "an integer address. Note that unlike the C version of this\n" | |
369 | "function,\n" | |
370 | "the result is an integer with normal host byte ordering.\n" | |
371 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" | |
372 | "@lisp\n" | |
373 | "(inet-pton AF_INET \"127.0.0.1\") @result{} 2130706433\n" | |
374 | "(inet-pton AF_INET6 \"::1\") @result{} 1\n" | |
375 | "@end lisp") | |
376 | #define FUNC_NAME s_scm_inet_pton | |
377 | { | |
378 | int af; | |
379 | char *src; | |
380 | scm_t_uint32 dst[4]; | |
381 | int rv, eno; | |
382 | ||
383 | af = scm_to_int (family); | |
384 | SCM_ASSERT_RANGE (1, family, | |
385 | af == AF_INET | |
386 | #ifdef HAVE_IPV6 | |
387 | || af == AF_INET6 | |
388 | #endif | |
389 | ); | |
eefae538 | 390 | |
e91f21dc LC |
391 | src = scm_to_locale_string (address); |
392 | rv = inet_pton (af, src, dst); | |
393 | eno = errno; | |
394 | free (src); | |
395 | errno = eno; | |
396 | ||
397 | if (rv == -1) | |
398 | SCM_SYSERROR; | |
399 | else if (rv == 0) | |
400 | SCM_MISC_ERROR ("Bad address", SCM_EOL); | |
401 | if (af == AF_INET) | |
402 | return scm_from_ulong (ntohl (*dst)); | |
403 | #ifdef HAVE_IPV6 | |
404 | else if (af == AF_INET6) | |
405 | return scm_from_ipv6 ((scm_t_uint8 *) dst); | |
406 | #endif | |
407 | else | |
408 | SCM_MISC_ERROR ("unsupported address family", family); | |
409 | } | |
410 | #undef FUNC_NAME | |
411 | ||
412 | \f | |
bc45012d | 413 | SCM_SYMBOL (sym_socket, "socket"); |
82ddea4e | 414 | |
439006bf | 415 | #define SCM_SOCK_FD_TO_PORT(fd) scm_fdes_to_port (fd, "r+0", sym_socket) |
1bbd0b84 | 416 | |
a1ec6916 | 417 | SCM_DEFINE (scm_socket, "socket", 3, 0, 0, |
1bbd0b84 | 418 | (SCM family, SCM style, SCM proto), |
1e6808ea | 419 | "Return a new socket port of the type specified by @var{family},\n" |
eefae538 | 420 | "@var{style} and @var{proto}. All three parameters are\n" |
3453619b GH |
421 | "integers. Supported values for @var{family} are\n" |
422 | "@code{AF_UNIX}, @code{AF_INET} and @code{AF_INET6}.\n" | |
423 | "Typical values for @var{style} are @code{SOCK_STREAM},\n" | |
eefae538 GH |
424 | "@code{SOCK_DGRAM} and @code{SOCK_RAW}.\n\n" |
425 | "@var{proto} can be obtained from a protocol name using\n" | |
1e6808ea | 426 | "@code{getprotobyname}. A value of zero specifies the default\n" |
eefae538 | 427 | "protocol, which is usually right.\n\n" |
1e6808ea MG |
428 | "A single socket port cannot by used for communication until it\n" |
429 | "has been connected to another socket.") | |
1bbd0b84 | 430 | #define FUNC_NAME s_scm_socket |
0f2d19dd | 431 | { |
370312ae | 432 | int fd; |
370312ae | 433 | |
7cee5b31 MV |
434 | fd = socket (scm_to_int (family), |
435 | scm_to_int (style), | |
436 | scm_to_int (proto)); | |
439006bf GH |
437 | if (fd == -1) |
438 | SCM_SYSERROR; | |
439 | return SCM_SOCK_FD_TO_PORT (fd); | |
0f2d19dd | 440 | } |
1bbd0b84 | 441 | #undef FUNC_NAME |
0f2d19dd | 442 | |
0e958795 | 443 | #ifdef HAVE_SOCKETPAIR |
a1ec6916 | 444 | SCM_DEFINE (scm_socketpair, "socketpair", 3, 0, 0, |
1bbd0b84 | 445 | (SCM family, SCM style, SCM proto), |
1e6808ea | 446 | "Return a pair of connected (but unnamed) socket ports of the\n" |
eefae538 | 447 | "type specified by @var{family}, @var{style} and @var{proto}.\n" |
1e6808ea MG |
448 | "Many systems support only socket pairs of the @code{AF_UNIX}\n" |
449 | "family. Zero is likely to be the only meaningful value for\n" | |
eefae538 | 450 | "@var{proto}.") |
1bbd0b84 | 451 | #define FUNC_NAME s_scm_socketpair |
0f2d19dd | 452 | { |
370312ae GH |
453 | int fam; |
454 | int fd[2]; | |
370312ae | 455 | |
7cee5b31 | 456 | fam = scm_to_int (family); |
370312ae | 457 | |
7cee5b31 | 458 | if (socketpair (fam, scm_to_int (style), scm_to_int (proto), fd) == -1) |
1bbd0b84 | 459 | SCM_SYSERROR; |
370312ae | 460 | |
439006bf | 461 | return scm_cons (SCM_SOCK_FD_TO_PORT (fd[0]), SCM_SOCK_FD_TO_PORT (fd[1])); |
0f2d19dd | 462 | } |
1bbd0b84 | 463 | #undef FUNC_NAME |
0e958795 | 464 | #endif |
0f2d19dd | 465 | |
f43f3620 LC |
466 | /* Possible results for `getsockopt ()'. Wrapping it into a union guarantees |
467 | suitable alignment. */ | |
468 | typedef union | |
469 | { | |
470 | #ifdef HAVE_STRUCT_LINGER | |
471 | struct linger linger; | |
472 | #endif | |
473 | size_t size; | |
474 | int integer; | |
475 | } scm_t_getsockopt_result; | |
476 | ||
a1ec6916 | 477 | SCM_DEFINE (scm_getsockopt, "getsockopt", 3, 0, 0, |
1bbd0b84 | 478 | (SCM sock, SCM level, SCM optname), |
72e3dae1 KR |
479 | "Return an option value from socket port @var{sock}.\n" |
480 | "\n" | |
481 | "@var{level} is an integer specifying a protocol layer, either\n" | |
482 | "@code{SOL_SOCKET} for socket level options, or a protocol\n" | |
483 | "number from the @code{IPPROTO} constants or @code{getprotoent}\n" | |
484 | "(@pxref{Network Databases}).\n" | |
485 | "\n" | |
486 | "@defvar SOL_SOCKET\n" | |
487 | "@defvarx IPPROTO_IP\n" | |
488 | "@defvarx IPPROTO_TCP\n" | |
489 | "@defvarx IPPROTO_UDP\n" | |
490 | "@end defvar\n" | |
491 | "\n" | |
492 | "@var{optname} is an integer specifying an option within the\n" | |
493 | "protocol layer.\n" | |
494 | "\n" | |
495 | "For @code{SOL_SOCKET} level the following @var{optname}s are\n" | |
496 | "defined (when provided by the system). For their meaning see\n" | |
497 | "@ref{Socket-Level Options,,, libc, The GNU C Library Reference\n" | |
498 | "Manual}, or @command{man 7 socket}.\n" | |
499 | "\n" | |
500 | "@defvar SO_DEBUG\n" | |
501 | "@defvarx SO_REUSEADDR\n" | |
502 | "@defvarx SO_STYLE\n" | |
503 | "@defvarx SO_TYPE\n" | |
504 | "@defvarx SO_ERROR\n" | |
505 | "@defvarx SO_DONTROUTE\n" | |
506 | "@defvarx SO_BROADCAST\n" | |
507 | "@defvarx SO_SNDBUF\n" | |
508 | "@defvarx SO_RCVBUF\n" | |
509 | "@defvarx SO_KEEPALIVE\n" | |
510 | "@defvarx SO_OOBINLINE\n" | |
511 | "@defvarx SO_NO_CHECK\n" | |
512 | "@defvarx SO_PRIORITY\n" | |
5f24f1b5 | 513 | "@defvarx SO_REUSEPORT\n" |
72e3dae1 KR |
514 | "The value returned is an integer.\n" |
515 | "@end defvar\n" | |
516 | "\n" | |
517 | "@defvar SO_LINGER\n" | |
b7e64f8b BT |
518 | "The value returned is a pair of integers\n" |
519 | "@code{(@var{enable} . @var{timeout})}. On old systems without\n" | |
72e3dae1 | 520 | "timeout support (ie.@: without @code{struct linger}), only\n" |
b7e64f8b | 521 | "@var{enable} has an effect but the value in Guile is always a\n" |
72e3dae1 KR |
522 | "pair.\n" |
523 | "@end defvar") | |
1bbd0b84 | 524 | #define FUNC_NAME s_scm_getsockopt |
0f2d19dd | 525 | { |
370312ae | 526 | int fd; |
439006bf | 527 | /* size of optval is the largest supported option. */ |
f43f3620 LC |
528 | scm_t_getsockopt_result optval; |
529 | socklen_t optlen = sizeof (optval); | |
370312ae GH |
530 | int ilevel; |
531 | int ioptname; | |
0f2d19dd | 532 | |
78446828 | 533 | sock = SCM_COERCE_OUTPORT (sock); |
2cf6d014 | 534 | SCM_VALIDATE_OPFPORT (1, sock); |
7cee5b31 MV |
535 | ilevel = scm_to_int (level); |
536 | ioptname = scm_to_int (optname); | |
0f2d19dd | 537 | |
ee149d03 | 538 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 539 | if (getsockopt (fd, ilevel, ioptname, (void *) &optval, &optlen) == -1) |
1bbd0b84 | 540 | SCM_SYSERROR; |
1cc91f1b | 541 | |
439006bf | 542 | if (ilevel == SOL_SOCKET) |
0f2d19dd | 543 | { |
439006bf GH |
544 | #ifdef SO_LINGER |
545 | if (ioptname == SO_LINGER) | |
546 | { | |
370312ae | 547 | #ifdef HAVE_STRUCT_LINGER |
f43f3620 | 548 | struct linger *ling = (struct linger *) &optval; |
439006bf | 549 | |
b9bd8526 MV |
550 | return scm_cons (scm_from_long (ling->l_onoff), |
551 | scm_from_long (ling->l_linger)); | |
370312ae | 552 | #else |
f43f3620 | 553 | return scm_cons (scm_from_long (*(int *) &optval), |
7cee5b31 | 554 | scm_from_int (0)); |
0f2d19dd | 555 | #endif |
439006bf GH |
556 | } |
557 | else | |
370312ae | 558 | #endif |
439006bf | 559 | if (0 |
370312ae | 560 | #ifdef SO_SNDBUF |
439006bf | 561 | || ioptname == SO_SNDBUF |
370312ae GH |
562 | #endif |
563 | #ifdef SO_RCVBUF | |
439006bf | 564 | || ioptname == SO_RCVBUF |
370312ae | 565 | #endif |
439006bf GH |
566 | ) |
567 | { | |
f43f3620 | 568 | return scm_from_size_t (*(size_t *) &optval); |
439006bf GH |
569 | } |
570 | } | |
f43f3620 | 571 | return scm_from_int (*(int *) &optval); |
0f2d19dd | 572 | } |
1bbd0b84 | 573 | #undef FUNC_NAME |
0f2d19dd | 574 | |
a1ec6916 | 575 | SCM_DEFINE (scm_setsockopt, "setsockopt", 4, 0, 0, |
1bbd0b84 | 576 | (SCM sock, SCM level, SCM optname, SCM value), |
72e3dae1 KR |
577 | "Set an option on socket port @var{sock}. The return value is\n" |
578 | "unspecified.\n" | |
579 | "\n" | |
580 | "@var{level} is an integer specifying a protocol layer, either\n" | |
581 | "@code{SOL_SOCKET} for socket level options, or a protocol\n" | |
582 | "number from the @code{IPPROTO} constants or @code{getprotoent}\n" | |
583 | "(@pxref{Network Databases}).\n" | |
584 | "\n" | |
585 | "@defvar SOL_SOCKET\n" | |
586 | "@defvarx IPPROTO_IP\n" | |
587 | "@defvarx IPPROTO_TCP\n" | |
588 | "@defvarx IPPROTO_UDP\n" | |
589 | "@end defvar\n" | |
590 | "\n" | |
591 | "@var{optname} is an integer specifying an option within the\n" | |
592 | "protocol layer.\n" | |
593 | "\n" | |
594 | "For @code{SOL_SOCKET} level the following @var{optname}s are\n" | |
595 | "defined (when provided by the system). For their meaning see\n" | |
596 | "@ref{Socket-Level Options,,, libc, The GNU C Library Reference\n" | |
597 | "Manual}, or @command{man 7 socket}.\n" | |
598 | "\n" | |
599 | "@defvar SO_DEBUG\n" | |
600 | "@defvarx SO_REUSEADDR\n" | |
601 | "@defvarx SO_STYLE\n" | |
602 | "@defvarx SO_TYPE\n" | |
603 | "@defvarx SO_ERROR\n" | |
604 | "@defvarx SO_DONTROUTE\n" | |
605 | "@defvarx SO_BROADCAST\n" | |
606 | "@defvarx SO_SNDBUF\n" | |
607 | "@defvarx SO_RCVBUF\n" | |
608 | "@defvarx SO_KEEPALIVE\n" | |
609 | "@defvarx SO_OOBINLINE\n" | |
610 | "@defvarx SO_NO_CHECK\n" | |
611 | "@defvarx SO_PRIORITY\n" | |
5f24f1b5 | 612 | "@defvarx SO_REUSEPORT\n" |
72e3dae1 KR |
613 | "@var{value} is an integer.\n" |
614 | "@end defvar\n" | |
615 | "\n" | |
616 | "@defvar SO_LINGER\n" | |
617 | "@var{value} is a pair of integers @code{(@var{ENABLE}\n" | |
618 | ". @var{TIMEOUT})}. On old systems without timeout support\n" | |
619 | "(ie.@: without @code{struct linger}), only @var{ENABLE} has an\n" | |
620 | "effect but the value in Guile is always a pair.\n" | |
621 | "@end defvar\n" | |
622 | "\n" | |
623 | "@c Note that we refer only to ``man ip'' here. On GNU/Linux it's\n" | |
624 | "@c ``man 7 ip'' but on NetBSD it's ``man 4 ip''.\n" | |
625 | "@c \n" | |
626 | "For IP level (@code{IPPROTO_IP}) the following @var{optname}s\n" | |
627 | "are defined (when provided by the system). See @command{man\n" | |
628 | "ip} for what they mean.\n" | |
629 | "\n" | |
511246a1 TCM |
630 | "@defvar IP_MULTICAST_IF\n" |
631 | "This sets the source interface used by multicast traffic.\n" | |
632 | "@end defvar\n" | |
633 | "\n" | |
634 | "@defvar IP_MULTICAST_TTL\n" | |
635 | "This sets the default TTL for multicast traffic. This defaults \n" | |
636 | "to 1 and should be increased to allow traffic to pass beyond the\n" | |
637 | "local network.\n" | |
638 | "@end defvar\n" | |
639 | "\n" | |
72e3dae1 KR |
640 | "@defvar IP_ADD_MEMBERSHIP\n" |
641 | "@defvarx IP_DROP_MEMBERSHIP\n" | |
642 | "These can be used only with @code{setsockopt}, not\n" | |
643 | "@code{getsockopt}. @var{value} is a pair\n" | |
644 | "@code{(@var{MULTIADDR} . @var{INTERFACEADDR})} of IPv4\n" | |
645 | "addresses (@pxref{Network Address Conversion}).\n" | |
646 | "@var{MULTIADDR} is a multicast address to be added to or\n" | |
647 | "dropped from the interface @var{INTERFACEADDR}.\n" | |
648 | "@var{INTERFACEADDR} can be @code{INADDR_ANY} to have the system\n" | |
649 | "select the interface. @var{INTERFACEADDR} can also be an\n" | |
f1b7209b KR |
650 | "interface index number, on systems supporting that.\n" |
651 | "@end defvar") | |
1bbd0b84 | 652 | #define FUNC_NAME s_scm_setsockopt |
0f2d19dd | 653 | { |
370312ae | 654 | int fd; |
1c80707c MV |
655 | |
656 | int opt_int; | |
370312ae | 657 | #ifdef HAVE_STRUCT_LINGER |
1c80707c | 658 | struct linger opt_linger; |
370312ae | 659 | #endif |
ecc9f40f | 660 | |
56a3dcd4 | 661 | #ifdef HAVE_STRUCT_IP_MREQ |
1c80707c | 662 | struct ip_mreq opt_mreq; |
ecc9f40f | 663 | #endif |
1c80707c MV |
664 | |
665 | const void *optval = NULL; | |
666 | socklen_t optlen = 0; | |
667 | ||
370312ae | 668 | int ilevel, ioptname; |
439006bf | 669 | |
78446828 | 670 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf GH |
671 | |
672 | SCM_VALIDATE_OPFPORT (1, sock); | |
7cee5b31 MV |
673 | ilevel = scm_to_int (level); |
674 | ioptname = scm_to_int (optname); | |
439006bf | 675 | |
ee149d03 | 676 | fd = SCM_FPORT_FDES (sock); |
1c80707c | 677 | |
439006bf | 678 | if (ilevel == SOL_SOCKET) |
370312ae | 679 | { |
439006bf GH |
680 | #ifdef SO_LINGER |
681 | if (ioptname == SO_LINGER) | |
682 | { | |
370312ae | 683 | #ifdef HAVE_STRUCT_LINGER |
d2e53ed6 | 684 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c MV |
685 | opt_linger.l_onoff = scm_to_int (SCM_CAR (value)); |
686 | opt_linger.l_linger = scm_to_int (SCM_CDR (value)); | |
687 | optlen = sizeof (struct linger); | |
688 | optval = &opt_linger; | |
370312ae | 689 | #else |
d2e53ed6 | 690 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c | 691 | opt_int = scm_to_int (SCM_CAR (value)); |
439006bf | 692 | /* timeout is ignored, but may as well validate it. */ |
1c80707c MV |
693 | scm_to_int (SCM_CDR (value)); |
694 | optlen = sizeof (int); | |
695 | optval = &opt_int; | |
439006bf GH |
696 | #endif |
697 | } | |
698 | else | |
699 | #endif | |
700 | if (0 | |
370312ae | 701 | #ifdef SO_SNDBUF |
439006bf | 702 | || ioptname == SO_SNDBUF |
370312ae GH |
703 | #endif |
704 | #ifdef SO_RCVBUF | |
439006bf | 705 | || ioptname == SO_RCVBUF |
370312ae | 706 | #endif |
439006bf GH |
707 | ) |
708 | { | |
1c80707c MV |
709 | opt_int = scm_to_int (value); |
710 | optlen = sizeof (size_t); | |
711 | optval = &opt_int; | |
439006bf GH |
712 | } |
713 | } | |
1c80707c | 714 | |
56a3dcd4 | 715 | #ifdef HAVE_STRUCT_IP_MREQ |
1c80707c MV |
716 | if (ilevel == IPPROTO_IP && |
717 | (ioptname == IP_ADD_MEMBERSHIP || ioptname == IP_DROP_MEMBERSHIP)) | |
0f2d19dd | 718 | { |
1c80707c MV |
719 | /* Fourth argument must be a pair of addresses. */ |
720 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); | |
721 | opt_mreq.imr_multiaddr.s_addr = htonl (scm_to_ulong (SCM_CAR (value))); | |
722 | opt_mreq.imr_interface.s_addr = htonl (scm_to_ulong (SCM_CDR (value))); | |
723 | optlen = sizeof (opt_mreq); | |
724 | optval = &opt_mreq; | |
725 | } | |
ecc9f40f | 726 | #endif |
439006bf | 727 | |
1c80707c MV |
728 | if (optval == NULL) |
729 | { | |
730 | /* Most options take an int. */ | |
731 | opt_int = scm_to_int (value); | |
732 | optlen = sizeof (int); | |
733 | optval = &opt_int; | |
0f2d19dd | 734 | } |
1c80707c MV |
735 | |
736 | if (setsockopt (fd, ilevel, ioptname, optval, optlen) == -1) | |
1bbd0b84 | 737 | SCM_SYSERROR; |
370312ae | 738 | return SCM_UNSPECIFIED; |
0f2d19dd | 739 | } |
1bbd0b84 | 740 | #undef FUNC_NAME |
0f2d19dd | 741 | |
cc948107 LC |
742 | /* Our documentation hard-codes this mapping, so make sure it holds. */ |
743 | verify (SHUT_RD == 0); | |
744 | verify (SHUT_WR == 1); | |
745 | verify (SHUT_RDWR == 2); | |
746 | ||
a1ec6916 | 747 | SCM_DEFINE (scm_shutdown, "shutdown", 2, 0, 0, |
1bbd0b84 | 748 | (SCM sock, SCM how), |
b380b885 | 749 | "Sockets can be closed simply by using @code{close-port}. The\n" |
bb2c02f2 | 750 | "@code{shutdown} procedure allows reception or transmission on a\n" |
b380b885 MD |
751 | "connection to be shut down individually, according to the parameter\n" |
752 | "@var{how}:\n\n" | |
753 | "@table @asis\n" | |
754 | "@item 0\n" | |
755 | "Stop receiving data for this socket. If further data arrives, reject it.\n" | |
756 | "@item 1\n" | |
757 | "Stop trying to transmit data from this socket. Discard any\n" | |
758 | "data waiting to be sent. Stop looking for acknowledgement of\n" | |
759 | "data already sent; don't retransmit it if it is lost.\n" | |
760 | "@item 2\n" | |
761 | "Stop both reception and transmission.\n" | |
762 | "@end table\n\n" | |
763 | "The return value is unspecified.") | |
1bbd0b84 | 764 | #define FUNC_NAME s_scm_shutdown |
0f2d19dd | 765 | { |
370312ae | 766 | int fd; |
78446828 | 767 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 768 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 769 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 770 | if (shutdown (fd, scm_to_signed_integer (how, 0, 2)) == -1) |
1bbd0b84 | 771 | SCM_SYSERROR; |
370312ae GH |
772 | return SCM_UNSPECIFIED; |
773 | } | |
1bbd0b84 | 774 | #undef FUNC_NAME |
0f2d19dd | 775 | |
370312ae GH |
776 | /* convert fam/address/args into a sockaddr of the appropriate type. |
777 | args is modified by removing the arguments actually used. | |
778 | which_arg and proc are used when reporting errors: | |
779 | which_arg is the position of address in the original argument list. | |
780 | proc is the name of the original procedure. | |
781 | size returns the size of the structure allocated. */ | |
782 | ||
bc732342 | 783 | static struct sockaddr * |
439006bf | 784 | scm_fill_sockaddr (int fam, SCM address, SCM *args, int which_arg, |
9c0129ac | 785 | const char *proc, size_t *size) |
3453619b | 786 | #define FUNC_NAME proc |
370312ae GH |
787 | { |
788 | switch (fam) | |
0f2d19dd | 789 | { |
370312ae GH |
790 | case AF_INET: |
791 | { | |
370312ae | 792 | struct sockaddr_in *soka; |
3453619b GH |
793 | unsigned long addr; |
794 | int port; | |
370312ae | 795 | |
3453619b GH |
796 | SCM_VALIDATE_ULONG_COPY (which_arg, address, addr); |
797 | SCM_VALIDATE_CONS (which_arg + 1, *args); | |
7cee5b31 | 798 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 799 | *args = SCM_CDR (*args); |
67329a9e | 800 | soka = (struct sockaddr_in *) scm_malloc (sizeof (struct sockaddr_in)); |
333a81cc | 801 | memset (soka, '\0', sizeof (struct sockaddr_in)); |
9c0129ac | 802 | |
482d311b | 803 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
3453619b GH |
804 | soka->sin_len = sizeof (struct sockaddr_in); |
805 | #endif | |
370312ae | 806 | soka->sin_family = AF_INET; |
3453619b GH |
807 | soka->sin_addr.s_addr = htonl (addr); |
808 | soka->sin_port = htons (port); | |
370312ae GH |
809 | *size = sizeof (struct sockaddr_in); |
810 | return (struct sockaddr *) soka; | |
811 | } | |
a57a0b1e | 812 | #ifdef HAVE_IPV6 |
3453619b GH |
813 | case AF_INET6: |
814 | { | |
815 | /* see RFC2553. */ | |
816 | int port; | |
817 | struct sockaddr_in6 *soka; | |
818 | unsigned long flowinfo = 0; | |
819 | unsigned long scope_id = 0; | |
820 | ||
3453619b | 821 | SCM_VALIDATE_CONS (which_arg + 1, *args); |
7cee5b31 | 822 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 823 | *args = SCM_CDR (*args); |
d2e53ed6 | 824 | if (scm_is_pair (*args)) |
3453619b GH |
825 | { |
826 | SCM_VALIDATE_ULONG_COPY (which_arg + 2, SCM_CAR (*args), flowinfo); | |
827 | *args = SCM_CDR (*args); | |
d2e53ed6 | 828 | if (scm_is_pair (*args)) |
3453619b GH |
829 | { |
830 | SCM_VALIDATE_ULONG_COPY (which_arg + 3, SCM_CAR (*args), | |
831 | scope_id); | |
832 | *args = SCM_CDR (*args); | |
833 | } | |
834 | } | |
67329a9e | 835 | soka = (struct sockaddr_in6 *) scm_malloc (sizeof (struct sockaddr_in6)); |
9c0129ac | 836 | |
56a3dcd4 | 837 | #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN |
3453619b GH |
838 | soka->sin6_len = sizeof (struct sockaddr_in6); |
839 | #endif | |
840 | soka->sin6_family = AF_INET6; | |
7cee5b31 | 841 | scm_to_ipv6 (soka->sin6_addr.s6_addr, address); |
5a525b84 | 842 | soka->sin6_port = htons (port); |
3453619b | 843 | soka->sin6_flowinfo = flowinfo; |
5a525b84 | 844 | #ifdef HAVE_SIN6_SCOPE_ID |
3453619b | 845 | soka->sin6_scope_id = scope_id; |
5a525b84 | 846 | #endif |
3453619b GH |
847 | *size = sizeof (struct sockaddr_in6); |
848 | return (struct sockaddr *) soka; | |
849 | } | |
850 | #endif | |
1ba8c23a | 851 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
370312ae GH |
852 | case AF_UNIX: |
853 | { | |
854 | struct sockaddr_un *soka; | |
439006bf | 855 | int addr_size; |
7f9994d9 MV |
856 | char *c_address; |
857 | ||
661ae7ab | 858 | scm_dynwind_begin (0); |
7f9994d9 MV |
859 | |
860 | c_address = scm_to_locale_string (address); | |
661ae7ab | 861 | scm_dynwind_free (c_address); |
370312ae | 862 | |
439006bf GH |
863 | /* the static buffer size in sockaddr_un seems to be arbitrary |
864 | and not necessarily a hard limit. e.g., the glibc manual | |
865 | suggests it may be possible to declare it size 0. let's | |
866 | ignore it. if the O/S doesn't like the size it will cause | |
867 | connect/bind etc., to fail. sun_path is always the last | |
868 | member of the structure. */ | |
869 | addr_size = sizeof (struct sockaddr_un) | |
7f9994d9 | 870 | + max (0, strlen (c_address) + 1 - (sizeof soka->sun_path)); |
67329a9e | 871 | soka = (struct sockaddr_un *) scm_malloc (addr_size); |
439006bf GH |
872 | memset (soka, 0, addr_size); /* for sun_len: see sin_len above. */ |
873 | soka->sun_family = AF_UNIX; | |
7f9994d9 | 874 | strcpy (soka->sun_path, c_address); |
439006bf | 875 | *size = SUN_LEN (soka); |
7f9994d9 | 876 | |
661ae7ab | 877 | scm_dynwind_end (); |
370312ae GH |
878 | return (struct sockaddr *) soka; |
879 | } | |
0e958795 | 880 | #endif |
370312ae | 881 | default: |
e11e83f3 | 882 | scm_out_of_range (proc, scm_from_int (fam)); |
0f2d19dd | 883 | } |
0f2d19dd | 884 | } |
3453619b | 885 | #undef FUNC_NAME |
9c0129ac KR |
886 | |
887 | SCM_DEFINE (scm_connect, "connect", 2, 1, 1, | |
888 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 889 | "Initiate a connection from a socket using a specified address\n" |
3453619b GH |
890 | "family to the address\n" |
891 | "specified by @var{address} and possibly @var{args}.\n" | |
892 | "The format required for @var{address}\n" | |
893 | "and @var{args} depends on the family of the socket.\n\n" | |
b380b885 | 894 | "For a socket of family @code{AF_UNIX},\n" |
3453619b | 895 | "only @var{address} is specified and must be a string with the\n" |
b380b885 MD |
896 | "filename where the socket is to be created.\n\n" |
897 | "For a socket of family @code{AF_INET},\n" | |
3453619b GH |
898 | "@var{address} must be an integer IPv4 host address and\n" |
899 | "@var{args} must be a single integer port number.\n\n" | |
900 | "For a socket of family @code{AF_INET6},\n" | |
901 | "@var{address} must be an integer IPv6 host address and\n" | |
902 | "@var{args} may be up to three integers:\n" | |
903 | "port [flowinfo] [scope_id],\n" | |
904 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
905 | "Alternatively, the second argument can be a socket address object " |
906 | "as returned by @code{make-socket-address}, in which case the " | |
907 | "no additional arguments should be passed.\n\n" | |
b380b885 | 908 | "The return value is unspecified.") |
1bbd0b84 | 909 | #define FUNC_NAME s_scm_connect |
0f2d19dd | 910 | { |
370312ae GH |
911 | int fd; |
912 | struct sockaddr *soka; | |
9c0129ac | 913 | size_t size; |
0f2d19dd | 914 | |
78446828 | 915 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 916 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 917 | fd = SCM_FPORT_FDES (sock); |
9c0129ac | 918 | |
d223c3fc | 919 | if (scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
920 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a |
921 | `socket address' object. */ | |
922 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
923 | else | |
924 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
925 | &args, 3, FUNC_NAME, &size); | |
926 | ||
370312ae | 927 | if (connect (fd, soka, size) == -1) |
439006bf GH |
928 | { |
929 | int save_errno = errno; | |
9c0129ac | 930 | |
439006bf GH |
931 | free (soka); |
932 | errno = save_errno; | |
933 | SCM_SYSERROR; | |
934 | } | |
935 | free (soka); | |
370312ae | 936 | return SCM_UNSPECIFIED; |
0f2d19dd | 937 | } |
1bbd0b84 | 938 | #undef FUNC_NAME |
0f2d19dd | 939 | |
9c0129ac KR |
940 | SCM_DEFINE (scm_bind, "bind", 2, 1, 1, |
941 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 942 | "Assign an address to the socket port @var{sock}.\n" |
b380b885 MD |
943 | "Generally this only needs to be done for server sockets,\n" |
944 | "so they know where to look for incoming connections. A socket\n" | |
945 | "without an address will be assigned one automatically when it\n" | |
946 | "starts communicating.\n\n" | |
eefae538 GH |
947 | "The format of @var{address} and @var{args} depends\n" |
948 | "on the family of the socket.\n\n" | |
b380b885 | 949 | "For a socket of family @code{AF_UNIX}, only @var{address}\n" |
eefae538 GH |
950 | "is specified and must be a string with the filename where\n" |
951 | "the socket is to be created.\n\n" | |
952 | "For a socket of family @code{AF_INET}, @var{address}\n" | |
953 | "must be an integer IPv4 address and @var{args}\n" | |
954 | "must be a single integer port number.\n\n" | |
955 | "The values of the following variables can also be used for\n" | |
956 | "@var{address}:\n\n" | |
b380b885 MD |
957 | "@defvar INADDR_ANY\n" |
958 | "Allow connections from any address.\n" | |
959 | "@end defvar\n\n" | |
960 | "@defvar INADDR_LOOPBACK\n" | |
961 | "The address of the local host using the loopback device.\n" | |
962 | "@end defvar\n\n" | |
963 | "@defvar INADDR_BROADCAST\n" | |
964 | "The broadcast address on the local network.\n" | |
965 | "@end defvar\n\n" | |
966 | "@defvar INADDR_NONE\n" | |
967 | "No address.\n" | |
968 | "@end defvar\n\n" | |
eefae538 GH |
969 | "For a socket of family @code{AF_INET6}, @var{address}\n" |
970 | "must be an integer IPv6 address and @var{args}\n" | |
971 | "may be up to three integers:\n" | |
972 | "port [flowinfo] [scope_id],\n" | |
973 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
974 | "Alternatively, the second argument can be a socket address object " |
975 | "as returned by @code{make-socket-address}, in which case the " | |
976 | "no additional arguments should be passed.\n\n" | |
b380b885 | 977 | "The return value is unspecified.") |
1bbd0b84 | 978 | #define FUNC_NAME s_scm_bind |
370312ae | 979 | { |
370312ae | 980 | struct sockaddr *soka; |
9c0129ac | 981 | size_t size; |
370312ae GH |
982 | int fd; |
983 | ||
78446828 | 984 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 985 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 986 | fd = SCM_FPORT_FDES (sock); |
9c0129ac | 987 | |
d223c3fc | 988 | if (scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
989 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a |
990 | `socket address' object. */ | |
991 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
992 | else | |
993 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
994 | &args, 3, FUNC_NAME, &size); | |
995 | ||
996 | ||
439006bf GH |
997 | if (bind (fd, soka, size) == -1) |
998 | { | |
999 | int save_errno = errno; | |
9c0129ac | 1000 | |
439006bf GH |
1001 | free (soka); |
1002 | errno = save_errno; | |
1bbd0b84 | 1003 | SCM_SYSERROR; |
439006bf GH |
1004 | } |
1005 | free (soka); | |
370312ae GH |
1006 | return SCM_UNSPECIFIED; |
1007 | } | |
1bbd0b84 | 1008 | #undef FUNC_NAME |
370312ae | 1009 | |
a1ec6916 | 1010 | SCM_DEFINE (scm_listen, "listen", 2, 0, 0, |
1bbd0b84 | 1011 | (SCM sock, SCM backlog), |
eefae538 | 1012 | "Enable @var{sock} to accept connection\n" |
b380b885 MD |
1013 | "requests. @var{backlog} is an integer specifying\n" |
1014 | "the maximum length of the queue for pending connections.\n" | |
eefae538 GH |
1015 | "If the queue fills, new clients will fail to connect until\n" |
1016 | "the server calls @code{accept} to accept a connection from\n" | |
1017 | "the queue.\n\n" | |
b380b885 | 1018 | "The return value is unspecified.") |
1bbd0b84 | 1019 | #define FUNC_NAME s_scm_listen |
370312ae GH |
1020 | { |
1021 | int fd; | |
78446828 | 1022 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1023 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1024 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 1025 | if (listen (fd, scm_to_int (backlog)) == -1) |
1bbd0b84 | 1026 | SCM_SYSERROR; |
370312ae GH |
1027 | return SCM_UNSPECIFIED; |
1028 | } | |
1bbd0b84 | 1029 | #undef FUNC_NAME |
370312ae GH |
1030 | |
1031 | /* Put the components of a sockaddr into a new SCM vector. */ | |
9c0129ac | 1032 | static SCM_C_INLINE_KEYWORD SCM |
f43f3620 LC |
1033 | _scm_from_sockaddr (const scm_t_max_sockaddr *address, unsigned addr_size, |
1034 | const char *proc) | |
0f2d19dd | 1035 | { |
f43f3620 LC |
1036 | SCM result = SCM_EOL; |
1037 | short int fam = ((struct sockaddr *) address)->sa_family; | |
439006bf | 1038 | |
5a525b84 | 1039 | switch (fam) |
0f2d19dd | 1040 | { |
5a525b84 GH |
1041 | case AF_INET: |
1042 | { | |
e1368a8d | 1043 | const struct sockaddr_in *nad = (struct sockaddr_in *) address; |
439006bf | 1044 | |
1d1559ce | 1045 | result = scm_c_make_vector (3, SCM_UNSPECIFIED); |
34d19ef6 | 1046 | |
4057a3e0 MV |
1047 | SCM_SIMPLE_VECTOR_SET(result, 0, |
1048 | scm_from_short (fam)); | |
1049 | SCM_SIMPLE_VECTOR_SET(result, 1, | |
1050 | scm_from_ulong (ntohl (nad->sin_addr.s_addr))); | |
1051 | SCM_SIMPLE_VECTOR_SET(result, 2, | |
1052 | scm_from_ushort (ntohs (nad->sin_port))); | |
5a525b84 GH |
1053 | } |
1054 | break; | |
a57a0b1e | 1055 | #ifdef HAVE_IPV6 |
5a525b84 GH |
1056 | case AF_INET6: |
1057 | { | |
e1368a8d | 1058 | const struct sockaddr_in6 *nad = (struct sockaddr_in6 *) address; |
5a525b84 | 1059 | |
1d1559ce | 1060 | result = scm_c_make_vector (5, SCM_UNSPECIFIED); |
4057a3e0 MV |
1061 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
1062 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_ipv6 (nad->sin6_addr.s6_addr)); | |
1063 | SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ushort (ntohs (nad->sin6_port))); | |
1064 | SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_uint32 (nad->sin6_flowinfo)); | |
5a525b84 | 1065 | #ifdef HAVE_SIN6_SCOPE_ID |
4057a3e0 | 1066 | SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_ulong (nad->sin6_scope_id)); |
5a525b84 | 1067 | #else |
4057a3e0 | 1068 | SCM_SIMPLE_VECTOR_SET(result, 4, SCM_INUM0); |
0e958795 | 1069 | #endif |
5a525b84 GH |
1070 | } |
1071 | break; | |
1072 | #endif | |
1073 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1074 | case AF_UNIX: | |
1075 | { | |
e1368a8d | 1076 | const struct sockaddr_un *nad = (struct sockaddr_un *) address; |
439006bf | 1077 | |
1d1559ce | 1078 | result = scm_c_make_vector (2, SCM_UNSPECIFIED); |
34d19ef6 | 1079 | |
4057a3e0 | 1080 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
aca23b65 MV |
1081 | /* When addr_size is not enough to cover sun_path, do not try |
1082 | to access it. */ | |
1083 | if (addr_size <= offsetof (struct sockaddr_un, sun_path)) | |
4057a3e0 | 1084 | SCM_SIMPLE_VECTOR_SET(result, 1, SCM_BOOL_F); |
aca23b65 | 1085 | else |
4057a3e0 | 1086 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (nad->sun_path)); |
5a525b84 GH |
1087 | } |
1088 | break; | |
1089 | #endif | |
1090 | default: | |
9c0129ac KR |
1091 | result = SCM_UNSPECIFIED; |
1092 | scm_misc_error (proc, "unrecognised address family: ~A", | |
e11e83f3 | 1093 | scm_list_1 (scm_from_int (fam))); |
9c0129ac | 1094 | |
0f2d19dd | 1095 | } |
1d1559ce | 1096 | return result; |
370312ae GH |
1097 | } |
1098 | ||
9c0129ac KR |
1099 | /* The publicly-visible function. Return a Scheme object representing |
1100 | ADDRESS, an address of ADDR_SIZE bytes. */ | |
1101 | SCM | |
1102 | scm_from_sockaddr (const struct sockaddr *address, unsigned addr_size) | |
1103 | { | |
f43f3620 LC |
1104 | return (_scm_from_sockaddr ((scm_t_max_sockaddr *) address, |
1105 | addr_size, "scm_from_sockaddr")); | |
9c0129ac KR |
1106 | } |
1107 | ||
1108 | /* Convert ADDRESS, an address object returned by either | |
1109 | `scm_from_sockaddr ()' or `scm_make_socket_address ()', into its C | |
1110 | representation. On success, a non-NULL pointer is returned and | |
1111 | ADDRESS_SIZE is updated to the actual size (in bytes) of the returned | |
1112 | address. The result must eventually be freed using `free ()'. */ | |
1113 | struct sockaddr * | |
1114 | scm_to_sockaddr (SCM address, size_t *address_size) | |
1115 | #define FUNC_NAME "scm_to_sockaddr" | |
1116 | { | |
1117 | short int family; | |
1118 | struct sockaddr *c_address = NULL; | |
1119 | ||
1120 | SCM_VALIDATE_VECTOR (1, address); | |
1121 | ||
1122 | *address_size = 0; | |
1123 | family = scm_to_short (SCM_SIMPLE_VECTOR_REF (address, 0)); | |
1124 | ||
1125 | switch (family) | |
1126 | { | |
1127 | case AF_INET: | |
1128 | { | |
1129 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 3) | |
1130 | scm_misc_error (FUNC_NAME, | |
1131 | "invalid inet address representation: ~A", | |
1132 | scm_list_1 (address)); | |
1133 | else | |
1134 | { | |
1135 | struct sockaddr_in c_inet; | |
1136 | ||
333a81cc NL |
1137 | memset (&c_inet, '\0', sizeof (struct sockaddr_in)); |
1138 | ||
482d311b NL |
1139 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
1140 | c_inet.sin_len = sizeof (struct sockaddr_in); | |
1141 | #endif | |
1142 | ||
9c0129ac KR |
1143 | c_inet.sin_addr.s_addr = |
1144 | htonl (scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 1))); | |
1145 | c_inet.sin_port = | |
1146 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1147 | c_inet.sin_family = AF_INET; | |
1148 | ||
1149 | *address_size = sizeof (c_inet); | |
1150 | c_address = scm_malloc (sizeof (c_inet)); | |
1151 | memcpy (c_address, &c_inet, sizeof (c_inet)); | |
1152 | } | |
1153 | ||
1154 | break; | |
1155 | } | |
1156 | ||
1157 | #ifdef HAVE_IPV6 | |
1158 | case AF_INET6: | |
1159 | { | |
1160 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 5) | |
1161 | scm_misc_error (FUNC_NAME, "invalid inet6 address representation: ~A", | |
1162 | scm_list_1 (address)); | |
1163 | else | |
1164 | { | |
1165 | struct sockaddr_in6 c_inet6; | |
1166 | ||
1ff4da65 NJ |
1167 | scm_to_ipv6 (c_inet6.sin6_addr.s6_addr, |
1168 | SCM_SIMPLE_VECTOR_REF (address, 1)); | |
9c0129ac KR |
1169 | c_inet6.sin6_port = |
1170 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1171 | c_inet6.sin6_flowinfo = | |
1172 | scm_to_uint32 (SCM_SIMPLE_VECTOR_REF (address, 3)); | |
1173 | #ifdef HAVE_SIN6_SCOPE_ID | |
1174 | c_inet6.sin6_scope_id = | |
1175 | scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 4)); | |
1176 | #endif | |
1177 | ||
1178 | c_inet6.sin6_family = AF_INET6; | |
1179 | ||
1180 | *address_size = sizeof (c_inet6); | |
1181 | c_address = scm_malloc (sizeof (c_inet6)); | |
1182 | memcpy (c_address, &c_inet6, sizeof (c_inet6)); | |
1183 | } | |
1184 | ||
1185 | break; | |
1186 | } | |
1187 | #endif | |
1188 | ||
1189 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1190 | case AF_UNIX: | |
1191 | { | |
1192 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 2) | |
1193 | scm_misc_error (FUNC_NAME, "invalid unix address representation: ~A", | |
1194 | scm_list_1 (address)); | |
1195 | else | |
1196 | { | |
1197 | SCM path; | |
1198 | size_t path_len = 0; | |
1199 | ||
1200 | path = SCM_SIMPLE_VECTOR_REF (address, 1); | |
393baa8a | 1201 | if (!scm_is_string (path) && !scm_is_false (path)) |
9c0129ac KR |
1202 | scm_misc_error (FUNC_NAME, "invalid unix address " |
1203 | "path: ~A", scm_list_1 (path)); | |
1204 | else | |
1205 | { | |
1206 | struct sockaddr_un c_unix; | |
1207 | ||
393baa8a | 1208 | if (scm_is_false (path)) |
9c0129ac KR |
1209 | path_len = 0; |
1210 | else | |
1211 | path_len = scm_c_string_length (path); | |
1212 | ||
1213 | #ifdef UNIX_PATH_MAX | |
1214 | if (path_len >= UNIX_PATH_MAX) | |
1215 | #else | |
1216 | /* We can hope that this limit will eventually vanish, at least on GNU. | |
1217 | However, currently, while glibc doesn't define `UNIX_PATH_MAX', it | |
1218 | documents it has being limited to 108 bytes. */ | |
1219 | if (path_len >= sizeof (c_unix.sun_path)) | |
1220 | #endif | |
1221 | scm_misc_error (FUNC_NAME, "unix address path " | |
1222 | "too long: ~A", scm_list_1 (path)); | |
1223 | else | |
1224 | { | |
1225 | if (path_len) | |
1226 | { | |
1227 | scm_to_locale_stringbuf (path, c_unix.sun_path, | |
1228 | #ifdef UNIX_PATH_MAX | |
1229 | UNIX_PATH_MAX); | |
1230 | #else | |
1231 | sizeof (c_unix.sun_path)); | |
1232 | #endif | |
1233 | c_unix.sun_path[path_len] = '\0'; | |
1234 | ||
1235 | /* Sanity check. */ | |
1236 | if (strlen (c_unix.sun_path) != path_len) | |
1237 | scm_misc_error (FUNC_NAME, "unix address path " | |
1238 | "contains nul characters: ~A", | |
1239 | scm_list_1 (path)); | |
1240 | } | |
1241 | else | |
1242 | c_unix.sun_path[0] = '\0'; | |
1243 | ||
1244 | c_unix.sun_family = AF_UNIX; | |
1245 | ||
1246 | *address_size = SUN_LEN (&c_unix); | |
1247 | c_address = scm_malloc (sizeof (c_unix)); | |
1248 | memcpy (c_address, &c_unix, sizeof (c_unix)); | |
1249 | } | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | break; | |
1254 | } | |
1255 | #endif | |
1256 | ||
1257 | default: | |
1258 | scm_misc_error (FUNC_NAME, "unrecognised address family: ~A", | |
1259 | scm_list_1 (scm_from_ushort (family))); | |
1260 | } | |
1261 | ||
1262 | return c_address; | |
1263 | } | |
1264 | #undef FUNC_NAME | |
1265 | ||
1266 | ||
1267 | /* Return a newly-allocated `sockaddr' structure that reflects ADDRESS, being | |
1268 | an address of family FAMILY, with the family-specific parameters ARGS (see | |
1269 | the description of `connect' for details). The returned structure may be | |
1270 | freed using `free ()'. */ | |
1271 | struct sockaddr * | |
1272 | scm_c_make_socket_address (SCM family, SCM address, SCM args, | |
1273 | size_t *address_size) | |
1274 | { | |
9c0129ac KR |
1275 | struct sockaddr *soka; |
1276 | ||
1277 | soka = scm_fill_sockaddr (scm_to_ushort (family), address, &args, 1, | |
d7c6575f | 1278 | "scm_c_make_socket_address", address_size); |
9c0129ac KR |
1279 | |
1280 | return soka; | |
1281 | } | |
1282 | ||
1283 | SCM_DEFINE (scm_make_socket_address, "make-socket-address", 2, 0, 1, | |
1284 | (SCM family, SCM address, SCM args), | |
1285 | "Return a Scheme address object that reflects @var{address}, " | |
1286 | "being an address of family @var{family}, with the " | |
1287 | "family-specific parameters @var{args} (see the description of " | |
1288 | "@code{connect} for details).") | |
1289 | #define FUNC_NAME s_scm_make_socket_address | |
1290 | { | |
1ac5fb45 | 1291 | SCM result = SCM_BOOL_F; |
9c0129ac KR |
1292 | struct sockaddr *c_address; |
1293 | size_t c_address_size; | |
1294 | ||
1295 | c_address = scm_c_make_socket_address (family, address, args, | |
1296 | &c_address_size); | |
1ac5fb45 LC |
1297 | if (c_address != NULL) |
1298 | { | |
1299 | result = scm_from_sockaddr (c_address, c_address_size); | |
1300 | free (c_address); | |
1301 | } | |
9c0129ac | 1302 | |
1ac5fb45 | 1303 | return result; |
9c0129ac KR |
1304 | } |
1305 | #undef FUNC_NAME | |
1306 | ||
1307 | \f | |
a1ec6916 | 1308 | SCM_DEFINE (scm_accept, "accept", 1, 0, 0, |
1bbd0b84 | 1309 | (SCM sock), |
eefae538 GH |
1310 | "Accept a connection on a bound, listening socket.\n" |
1311 | "If there\n" | |
1312 | "are no pending connections in the queue, wait until\n" | |
1313 | "one is available unless the non-blocking option has been\n" | |
1314 | "set on the socket.\n\n" | |
b380b885 | 1315 | "The return value is a\n" |
eefae538 GH |
1316 | "pair in which the @emph{car} is a new socket port for the\n" |
1317 | "connection and\n" | |
1318 | "the @emph{cdr} is an object with address information about the\n" | |
1319 | "client which initiated the connection.\n\n" | |
1320 | "@var{sock} does not become part of the\n" | |
b380b885 | 1321 | "connection and will continue to accept new requests.") |
1bbd0b84 | 1322 | #define FUNC_NAME s_scm_accept |
0f2d19dd | 1323 | { |
e68e0369 | 1324 | int fd; |
370312ae GH |
1325 | int newfd; |
1326 | SCM address; | |
1327 | SCM newsock; | |
5ee417fc | 1328 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1329 | scm_t_max_sockaddr addr; |
370312ae | 1330 | |
78446828 | 1331 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 1332 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1333 | fd = SCM_FPORT_FDES (sock); |
032a16fc | 1334 | SCM_SYSCALL (newfd = accept (fd, (struct sockaddr *) &addr, &addr_size)); |
439006bf GH |
1335 | if (newfd == -1) |
1336 | SCM_SYSERROR; | |
1337 | newsock = SCM_SOCK_FD_TO_PORT (newfd); | |
f43f3620 LC |
1338 | address = _scm_from_sockaddr (&addr, addr_size, |
1339 | FUNC_NAME); | |
1340 | ||
370312ae | 1341 | return scm_cons (newsock, address); |
0f2d19dd | 1342 | } |
1bbd0b84 | 1343 | #undef FUNC_NAME |
0f2d19dd | 1344 | |
a1ec6916 | 1345 | SCM_DEFINE (scm_getsockname, "getsockname", 1, 0, 0, |
1bbd0b84 | 1346 | (SCM sock), |
eefae538 | 1347 | "Return the address of @var{sock}, in the same form as the\n" |
1e6808ea MG |
1348 | "object returned by @code{accept}. On many systems the address\n" |
1349 | "of a socket in the @code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1350 | #define FUNC_NAME s_scm_getsockname |
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 (getsockname (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_getpeername, "getpeername", 1, 0, 0, |
1bbd0b84 | 1367 | (SCM sock), |
eefae538 | 1368 | "Return the address that @var{sock}\n" |
1e6808ea MG |
1369 | "is connected to, in the same form as the object returned by\n" |
1370 | "@code{accept}. On many systems the address of a socket in the\n" | |
1371 | "@code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1372 | #define FUNC_NAME s_scm_getpeername |
0f2d19dd | 1373 | { |
370312ae | 1374 | int fd; |
5ee417fc | 1375 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1376 | scm_t_max_sockaddr addr; |
439006bf | 1377 | |
78446828 | 1378 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1379 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1380 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1381 | if (getpeername (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1382 | SCM_SYSERROR; |
f43f3620 LC |
1383 | |
1384 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1385 | } |
1bbd0b84 | 1386 | #undef FUNC_NAME |
0f2d19dd | 1387 | |
a1ec6916 | 1388 | SCM_DEFINE (scm_recv, "recv!", 2, 1, 0, |
1bbd0b84 | 1389 | (SCM sock, SCM buf, SCM flags), |
eefae538 GH |
1390 | "Receive data from a socket port.\n" |
1391 | "@var{sock} must already\n" | |
b380b885 | 1392 | "be bound to the address from which data is to be received.\n" |
d21a1dc8 | 1393 | "@var{buf} is a bytevector into which\n" |
eefae538 GH |
1394 | "the data will be written. The size of @var{buf} limits\n" |
1395 | "the amount of\n" | |
b380b885 | 1396 | "data which can be received: in the case of packet\n" |
eefae538 GH |
1397 | "protocols, if a packet larger than this limit is encountered\n" |
1398 | "then some data\n" | |
b380b885 MD |
1399 | "will be irrevocably lost.\n\n" |
1400 | "The optional @var{flags} argument is a value or\n" | |
1401 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" | |
eefae538 GH |
1402 | "The value returned is the number of bytes read from the\n" |
1403 | "socket.\n\n" | |
1404 | "Note that the data is read directly from the socket file\n" | |
1405 | "descriptor:\n" | |
09831f94 | 1406 | "any unread buffered port data is ignored.") |
1bbd0b84 | 1407 | #define FUNC_NAME s_scm_recv |
0f2d19dd | 1408 | { |
d21a1dc8 | 1409 | int rv, fd, flg; |
370312ae | 1410 | |
34d19ef6 | 1411 | SCM_VALIDATE_OPFPORT (1, sock); |
d21a1dc8 | 1412 | |
7cee5b31 MV |
1413 | if (SCM_UNBNDP (flags)) |
1414 | flg = 0; | |
1415 | else | |
1416 | flg = scm_to_int (flags); | |
ee149d03 | 1417 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1418 | |
fc7bd367 | 1419 | SCM_VALIDATE_BYTEVECTOR (1, buf); |
d21a1dc8 | 1420 | |
fc7bd367 AW |
1421 | SCM_SYSCALL (rv = recv (fd, |
1422 | SCM_BYTEVECTOR_CONTENTS (buf), | |
1423 | SCM_BYTEVECTOR_LENGTH (buf), | |
1424 | flg)); | |
cc95e00a | 1425 | |
d21a1dc8 | 1426 | if (SCM_UNLIKELY (rv == -1)) |
1bbd0b84 | 1427 | SCM_SYSERROR; |
370312ae | 1428 | |
d21a1dc8 | 1429 | scm_remember_upto_here (buf); |
7cee5b31 | 1430 | return scm_from_int (rv); |
370312ae | 1431 | } |
1bbd0b84 | 1432 | #undef FUNC_NAME |
370312ae | 1433 | |
a1ec6916 | 1434 | SCM_DEFINE (scm_send, "send", 2, 1, 0, |
1bbd0b84 | 1435 | (SCM sock, SCM message, SCM flags), |
d21a1dc8 | 1436 | "Transmit bytevector @var{message} on socket port @var{sock}.\n" |
eefae538 GH |
1437 | "@var{sock} must already be bound to a destination address. The\n" |
1438 | "value returned is the number of bytes transmitted --\n" | |
1439 | "it's possible for\n" | |
1440 | "this to be less than the length of @var{message}\n" | |
1441 | "if the socket is\n" | |
1442 | "set to be non-blocking. The optional @var{flags} argument\n" | |
1443 | "is a value or\n" | |
b380b885 | 1444 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1445 | "Note that the data is written directly to the socket\n" |
1446 | "file descriptor:\n" | |
587a3355 MG |
1447 | "any unflushed buffered port data is ignored.\n\n" |
1448 | "This operation is defined only for strings containing codepoints\n" | |
1449 | "zero to 255.") | |
1bbd0b84 | 1450 | #define FUNC_NAME s_scm_send |
370312ae | 1451 | { |
d21a1dc8 | 1452 | int rv, fd, flg; |
370312ae | 1453 | |
78446828 | 1454 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1455 | SCM_VALIDATE_OPFPORT (1, sock); |
587a3355 | 1456 | |
7cee5b31 MV |
1457 | if (SCM_UNBNDP (flags)) |
1458 | flg = 0; | |
1459 | else | |
1460 | flg = scm_to_int (flags); | |
d21a1dc8 | 1461 | |
ee149d03 | 1462 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1463 | |
fc7bd367 | 1464 | SCM_VALIDATE_BYTEVECTOR (1, message); |
d21a1dc8 | 1465 | |
fc7bd367 AW |
1466 | SCM_SYSCALL (rv = send (fd, |
1467 | SCM_BYTEVECTOR_CONTENTS (message), | |
1468 | SCM_BYTEVECTOR_LENGTH (message), | |
1469 | flg)); | |
cc95e00a | 1470 | |
370312ae | 1471 | if (rv == -1) |
1bbd0b84 | 1472 | SCM_SYSERROR; |
396e5506 MV |
1473 | |
1474 | scm_remember_upto_here_1 (message); | |
7cee5b31 | 1475 | return scm_from_int (rv); |
370312ae | 1476 | } |
1bbd0b84 | 1477 | #undef FUNC_NAME |
370312ae | 1478 | |
a1ec6916 | 1479 | SCM_DEFINE (scm_recvfrom, "recvfrom!", 2, 3, 0, |
d21a1dc8 | 1480 | (SCM sock, SCM buf, SCM flags, SCM start, SCM end), |
8ab3d8a0 KR |
1481 | "Receive data from socket port @var{sock} (which must be already\n" |
1482 | "bound), returning the originating address as well as the data.\n" | |
1483 | "This is usually for use on datagram sockets, but can be used on\n" | |
1484 | "stream-oriented sockets too.\n" | |
1485 | "\n" | |
d21a1dc8 LC |
1486 | "The data received is stored in bytevector @var{buf}, using\n" |
1487 | "either the whole bytevector or just the region between the optional\n" | |
1488 | "@var{start} and @var{end} positions. The size of @var{buf}\n" | |
1489 | "limits the amount of data that can be received. For datagram\n" | |
8ab3d8a0 KR |
1490 | "protocols, if a packet larger than this is received then excess\n" |
1491 | "bytes are irrevocably lost.\n" | |
1492 | "\n" | |
1493 | "The return value is a pair. The @code{car} is the number of\n" | |
1494 | "bytes read. The @code{cdr} is a socket address object which is\n" | |
d21a1dc8 | 1495 | "where the data came from, or @code{#f} if the origin is\n" |
8ab3d8a0 KR |
1496 | "unknown.\n" |
1497 | "\n" | |
1498 | "The optional @var{flags} argument is a or bitwise OR\n" | |
1499 | "(@code{logior}) of @code{MSG_OOB}, @code{MSG_PEEK},\n" | |
1500 | "@code{MSG_DONTROUTE} etc.\n" | |
1501 | "\n" | |
1502 | "Data is read directly from the socket file descriptor, any\n" | |
1503 | "buffered port data is ignored.\n" | |
1504 | "\n" | |
1505 | "On a GNU/Linux system @code{recvfrom!} is not multi-threading,\n" | |
1506 | "all threads stop while a @code{recvfrom!} call is in progress.\n" | |
1507 | "An application may need to use @code{select}, @code{O_NONBLOCK}\n" | |
1508 | "or @code{MSG_DONTWAIT} to avoid this.") | |
1bbd0b84 | 1509 | #define FUNC_NAME s_scm_recvfrom |
370312ae | 1510 | { |
d21a1dc8 | 1511 | int rv, fd, flg; |
370312ae | 1512 | SCM address; |
d21a1dc8 | 1513 | size_t offset, cend; |
5ee417fc | 1514 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1515 | scm_t_max_sockaddr addr; |
370312ae | 1516 | |
34d19ef6 | 1517 | SCM_VALIDATE_OPFPORT (1, sock); |
60d02d09 | 1518 | fd = SCM_FPORT_FDES (sock); |
396e5506 | 1519 | |
1146b6cd GH |
1520 | if (SCM_UNBNDP (flags)) |
1521 | flg = 0; | |
370312ae | 1522 | else |
60d02d09 | 1523 | SCM_VALIDATE_ULONG_COPY (3, flags, flg); |
370312ae | 1524 | |
f43f3620 | 1525 | ((struct sockaddr *) &addr)->sa_family = AF_UNSPEC; |
d21a1dc8 | 1526 | |
fc7bd367 | 1527 | SCM_VALIDATE_BYTEVECTOR (1, buf); |
d21a1dc8 | 1528 | |
fc7bd367 AW |
1529 | if (SCM_UNBNDP (start)) |
1530 | offset = 0; | |
1531 | else | |
1532 | offset = scm_to_size_t (start); | |
d21a1dc8 | 1533 | |
fc7bd367 AW |
1534 | if (SCM_UNBNDP (end)) |
1535 | cend = SCM_BYTEVECTOR_LENGTH (buf); | |
d21a1dc8 | 1536 | else |
d21a1dc8 | 1537 | { |
fc7bd367 AW |
1538 | cend = scm_to_size_t (end); |
1539 | if (SCM_UNLIKELY (cend >= SCM_BYTEVECTOR_LENGTH (buf) | |
1540 | || cend < offset)) | |
1541 | scm_out_of_range (FUNC_NAME, end); | |
d21a1dc8 | 1542 | } |
cc95e00a | 1543 | |
fc7bd367 AW |
1544 | SCM_SYSCALL (rv = recvfrom (fd, |
1545 | SCM_BYTEVECTOR_CONTENTS (buf) + offset, | |
1546 | cend - offset, flg, | |
1547 | (struct sockaddr *) &addr, &addr_size)); | |
1548 | ||
370312ae | 1549 | if (rv == -1) |
1bbd0b84 | 1550 | SCM_SYSERROR; |
d21a1dc8 LC |
1551 | |
1552 | /* `recvfrom' does not necessarily return an address. Usually nothing | |
1553 | is returned for stream sockets. */ | |
f43f3620 LC |
1554 | if (((struct sockaddr *) &addr)->sa_family != AF_UNSPEC) |
1555 | address = _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
370312ae GH |
1556 | else |
1557 | address = SCM_BOOL_F; | |
1558 | ||
d21a1dc8 | 1559 | scm_remember_upto_here_1 (buf); |
f43f3620 | 1560 | |
e11e83f3 | 1561 | return scm_cons (scm_from_int (rv), address); |
0f2d19dd | 1562 | } |
1bbd0b84 | 1563 | #undef FUNC_NAME |
0f2d19dd | 1564 | |
9c0129ac KR |
1565 | SCM_DEFINE (scm_sendto, "sendto", 3, 1, 1, |
1566 | (SCM sock, SCM message, SCM fam_or_sockaddr, SCM address, SCM args_and_flags), | |
d21a1dc8 | 1567 | "Transmit bytevector @var{message} on socket port\n" |
eefae538 | 1568 | "@var{sock}. The\n" |
b7e64f8b | 1569 | "destination address is specified using the @var{fam_or_sockaddr},\n" |
eefae538 | 1570 | "@var{address} and\n" |
9c0129ac KR |
1571 | "@var{args_and_flags} arguments, or just a socket address object " |
1572 | "returned by @code{make-socket-address}, in a similar way to the\n" | |
eefae538 GH |
1573 | "@code{connect} procedure. @var{args_and_flags} contains\n" |
1574 | "the usual connection arguments optionally followed by\n" | |
1575 | "a flags argument, which is a value or\n" | |
b380b885 | 1576 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1577 | "The value returned is the number of bytes transmitted --\n" |
1578 | "it's possible for\n" | |
1579 | "this to be less than the length of @var{message} if the\n" | |
1580 | "socket is\n" | |
1581 | "set to be non-blocking.\n" | |
1582 | "Note that the data is written directly to the socket\n" | |
1583 | "file descriptor:\n" | |
587a3355 MG |
1584 | "any unflushed buffered port data is ignored.\n" |
1585 | "This operation is defined only for strings containing codepoints\n" | |
1586 | "zero to 255.") | |
1bbd0b84 | 1587 | #define FUNC_NAME s_scm_sendto |
370312ae | 1588 | { |
d21a1dc8 | 1589 | int rv, fd, flg; |
370312ae | 1590 | struct sockaddr *soka; |
9c0129ac | 1591 | size_t size; |
370312ae | 1592 | |
78446828 | 1593 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1594 | SCM_VALIDATE_FPORT (1, sock); |
ee149d03 | 1595 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
1596 | |
1597 | if (!scm_is_number (fam_or_sockaddr)) | |
1598 | { | |
1599 | /* FAM_OR_SOCKADDR must actually be a `socket address' object. This | |
1600 | means that the following arguments, i.e. ADDRESS and those listed in | |
1601 | ARGS_AND_FLAGS, are the `MSG_' flags. */ | |
1602 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
d223c3fc | 1603 | if (!scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
1604 | args_and_flags = scm_cons (address, args_and_flags); |
1605 | } | |
1606 | else | |
1607 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
1608 | &args_and_flags, 3, FUNC_NAME, &size); | |
1609 | ||
d2e53ed6 | 1610 | if (scm_is_null (args_and_flags)) |
370312ae GH |
1611 | flg = 0; |
1612 | else | |
1613 | { | |
34d19ef6 | 1614 | SCM_VALIDATE_CONS (5, args_and_flags); |
e4b265d8 | 1615 | flg = SCM_NUM2ULONG (5, SCM_CAR (args_and_flags)); |
370312ae | 1616 | } |
d21a1dc8 | 1617 | |
fc7bd367 | 1618 | SCM_VALIDATE_BYTEVECTOR (1, message); |
d21a1dc8 | 1619 | |
fc7bd367 AW |
1620 | SCM_SYSCALL (rv = sendto (fd, |
1621 | SCM_BYTEVECTOR_CONTENTS (message), | |
1622 | SCM_BYTEVECTOR_LENGTH (message), | |
1623 | flg, soka, size)); | |
d21a1dc8 | 1624 | |
370312ae | 1625 | if (rv == -1) |
439006bf GH |
1626 | { |
1627 | int save_errno = errno; | |
1628 | free (soka); | |
1629 | errno = save_errno; | |
1630 | SCM_SYSERROR; | |
1631 | } | |
1632 | free (soka); | |
396e5506 MV |
1633 | |
1634 | scm_remember_upto_here_1 (message); | |
e11e83f3 | 1635 | return scm_from_int (rv); |
370312ae | 1636 | } |
1bbd0b84 | 1637 | #undef FUNC_NAME |
370312ae GH |
1638 | \f |
1639 | ||
1640 | ||
1641 | void | |
0f2d19dd | 1642 | scm_init_socket () |
0f2d19dd | 1643 | { |
370312ae GH |
1644 | /* protocol families. */ |
1645 | #ifdef AF_UNSPEC | |
e11e83f3 | 1646 | scm_c_define ("AF_UNSPEC", scm_from_int (AF_UNSPEC)); |
370312ae | 1647 | #endif |
dba6f4e2 | 1648 | #if defined HAVE_UNIX_DOMAIN_SOCKETS && defined AF_UNIX |
e11e83f3 | 1649 | scm_c_define ("AF_UNIX", scm_from_int (AF_UNIX)); |
370312ae GH |
1650 | #endif |
1651 | #ifdef AF_INET | |
e11e83f3 | 1652 | scm_c_define ("AF_INET", scm_from_int (AF_INET)); |
370312ae | 1653 | #endif |
3453619b | 1654 | #ifdef AF_INET6 |
e11e83f3 | 1655 | scm_c_define ("AF_INET6", scm_from_int (AF_INET6)); |
3453619b | 1656 | #endif |
370312ae GH |
1657 | |
1658 | #ifdef PF_UNSPEC | |
e11e83f3 | 1659 | scm_c_define ("PF_UNSPEC", scm_from_int (PF_UNSPEC)); |
370312ae GH |
1660 | #endif |
1661 | #ifdef PF_UNIX | |
e11e83f3 | 1662 | scm_c_define ("PF_UNIX", scm_from_int (PF_UNIX)); |
370312ae GH |
1663 | #endif |
1664 | #ifdef PF_INET | |
e11e83f3 | 1665 | scm_c_define ("PF_INET", scm_from_int (PF_INET)); |
370312ae | 1666 | #endif |
3453619b | 1667 | #ifdef PF_INET6 |
e11e83f3 | 1668 | scm_c_define ("PF_INET6", scm_from_int (PF_INET6)); |
3453619b | 1669 | #endif |
370312ae | 1670 | |
66c73b76 GH |
1671 | /* standard addresses. */ |
1672 | #ifdef INADDR_ANY | |
b9bd8526 | 1673 | scm_c_define ("INADDR_ANY", scm_from_ulong (INADDR_ANY)); |
66c73b76 GH |
1674 | #endif |
1675 | #ifdef INADDR_BROADCAST | |
b9bd8526 | 1676 | scm_c_define ("INADDR_BROADCAST", scm_from_ulong (INADDR_BROADCAST)); |
66c73b76 GH |
1677 | #endif |
1678 | #ifdef INADDR_NONE | |
b9bd8526 | 1679 | scm_c_define ("INADDR_NONE", scm_from_ulong (INADDR_NONE)); |
66c73b76 GH |
1680 | #endif |
1681 | #ifdef INADDR_LOOPBACK | |
b9bd8526 | 1682 | scm_c_define ("INADDR_LOOPBACK", scm_from_ulong (INADDR_LOOPBACK)); |
66c73b76 GH |
1683 | #endif |
1684 | ||
6f637a1b KR |
1685 | /* socket types. |
1686 | ||
1687 | SOCK_PACKET is deliberately omitted, the GNU/Linux socket(2) and | |
1688 | packet(7) advise that it's obsolete and strongly deprecated. */ | |
1689 | ||
370312ae | 1690 | #ifdef SOCK_STREAM |
e11e83f3 | 1691 | scm_c_define ("SOCK_STREAM", scm_from_int (SOCK_STREAM)); |
370312ae GH |
1692 | #endif |
1693 | #ifdef SOCK_DGRAM | |
e11e83f3 | 1694 | scm_c_define ("SOCK_DGRAM", scm_from_int (SOCK_DGRAM)); |
370312ae | 1695 | #endif |
6f637a1b KR |
1696 | #ifdef SOCK_SEQPACKET |
1697 | scm_c_define ("SOCK_SEQPACKET", scm_from_int (SOCK_SEQPACKET)); | |
1698 | #endif | |
370312ae | 1699 | #ifdef SOCK_RAW |
e11e83f3 | 1700 | scm_c_define ("SOCK_RAW", scm_from_int (SOCK_RAW)); |
370312ae | 1701 | #endif |
6f637a1b KR |
1702 | #ifdef SOCK_RDM |
1703 | scm_c_define ("SOCK_RDM", scm_from_int (SOCK_RDM)); | |
1704 | #endif | |
370312ae | 1705 | |
8fae2bf4 KR |
1706 | /* setsockopt level. |
1707 | ||
1708 | SOL_IP, SOL_TCP and SOL_UDP are defined on gnu/linux, but not on for | |
1709 | instance NetBSD. We define IPPROTOs because that's what the posix spec | |
1710 | shows in its example at | |
1711 | ||
1712 | http://www.opengroup.org/onlinepubs/007904975/functions/getsockopt.html | |
1713 | */ | |
370312ae | 1714 | #ifdef SOL_SOCKET |
e11e83f3 | 1715 | scm_c_define ("SOL_SOCKET", scm_from_int (SOL_SOCKET)); |
370312ae | 1716 | #endif |
8fae2bf4 KR |
1717 | #ifdef IPPROTO_IP |
1718 | scm_c_define ("IPPROTO_IP", scm_from_int (IPPROTO_IP)); | |
370312ae | 1719 | #endif |
8fae2bf4 KR |
1720 | #ifdef IPPROTO_TCP |
1721 | scm_c_define ("IPPROTO_TCP", scm_from_int (IPPROTO_TCP)); | |
370312ae | 1722 | #endif |
8fae2bf4 KR |
1723 | #ifdef IPPROTO_UDP |
1724 | scm_c_define ("IPPROTO_UDP", scm_from_int (IPPROTO_UDP)); | |
370312ae GH |
1725 | #endif |
1726 | ||
1727 | /* setsockopt names. */ | |
1728 | #ifdef SO_DEBUG | |
e11e83f3 | 1729 | scm_c_define ("SO_DEBUG", scm_from_int (SO_DEBUG)); |
370312ae GH |
1730 | #endif |
1731 | #ifdef SO_REUSEADDR | |
e11e83f3 | 1732 | scm_c_define ("SO_REUSEADDR", scm_from_int (SO_REUSEADDR)); |
370312ae GH |
1733 | #endif |
1734 | #ifdef SO_STYLE | |
e11e83f3 | 1735 | scm_c_define ("SO_STYLE", scm_from_int (SO_STYLE)); |
370312ae GH |
1736 | #endif |
1737 | #ifdef SO_TYPE | |
e11e83f3 | 1738 | scm_c_define ("SO_TYPE", scm_from_int (SO_TYPE)); |
370312ae GH |
1739 | #endif |
1740 | #ifdef SO_ERROR | |
e11e83f3 | 1741 | scm_c_define ("SO_ERROR", scm_from_int (SO_ERROR)); |
370312ae GH |
1742 | #endif |
1743 | #ifdef SO_DONTROUTE | |
e11e83f3 | 1744 | scm_c_define ("SO_DONTROUTE", scm_from_int (SO_DONTROUTE)); |
370312ae GH |
1745 | #endif |
1746 | #ifdef SO_BROADCAST | |
e11e83f3 | 1747 | scm_c_define ("SO_BROADCAST", scm_from_int (SO_BROADCAST)); |
370312ae GH |
1748 | #endif |
1749 | #ifdef SO_SNDBUF | |
e11e83f3 | 1750 | scm_c_define ("SO_SNDBUF", scm_from_int (SO_SNDBUF)); |
370312ae GH |
1751 | #endif |
1752 | #ifdef SO_RCVBUF | |
e11e83f3 | 1753 | scm_c_define ("SO_RCVBUF", scm_from_int (SO_RCVBUF)); |
370312ae GH |
1754 | #endif |
1755 | #ifdef SO_KEEPALIVE | |
e11e83f3 | 1756 | scm_c_define ("SO_KEEPALIVE", scm_from_int (SO_KEEPALIVE)); |
370312ae GH |
1757 | #endif |
1758 | #ifdef SO_OOBINLINE | |
e11e83f3 | 1759 | scm_c_define ("SO_OOBINLINE", scm_from_int (SO_OOBINLINE)); |
370312ae GH |
1760 | #endif |
1761 | #ifdef SO_NO_CHECK | |
e11e83f3 | 1762 | scm_c_define ("SO_NO_CHECK", scm_from_int (SO_NO_CHECK)); |
370312ae GH |
1763 | #endif |
1764 | #ifdef SO_PRIORITY | |
e11e83f3 | 1765 | scm_c_define ("SO_PRIORITY", scm_from_int (SO_PRIORITY)); |
370312ae GH |
1766 | #endif |
1767 | #ifdef SO_LINGER | |
e11e83f3 | 1768 | scm_c_define ("SO_LINGER", scm_from_int (SO_LINGER)); |
370312ae | 1769 | #endif |
5f24f1b5 LC |
1770 | #ifdef SO_REUSEPORT /* new in Linux 3.9 */ |
1771 | scm_c_define ("SO_REUSEPORT", scm_from_int (SO_REUSEPORT)); | |
1772 | #endif | |
370312ae GH |
1773 | |
1774 | /* recv/send options. */ | |
8ab3d8a0 KR |
1775 | #ifdef MSG_DONTWAIT |
1776 | scm_c_define ("MSG_DONTWAIT", scm_from_int (MSG_DONTWAIT)); | |
1777 | #endif | |
370312ae | 1778 | #ifdef MSG_OOB |
e11e83f3 | 1779 | scm_c_define ("MSG_OOB", scm_from_int (MSG_OOB)); |
370312ae GH |
1780 | #endif |
1781 | #ifdef MSG_PEEK | |
e11e83f3 | 1782 | scm_c_define ("MSG_PEEK", scm_from_int (MSG_PEEK)); |
370312ae GH |
1783 | #endif |
1784 | #ifdef MSG_DONTROUTE | |
e11e83f3 | 1785 | scm_c_define ("MSG_DONTROUTE", scm_from_int (MSG_DONTROUTE)); |
370312ae GH |
1786 | #endif |
1787 | ||
1c80707c MV |
1788 | #ifdef IP_ADD_MEMBERSHIP |
1789 | scm_c_define ("IP_ADD_MEMBERSHIP", scm_from_int (IP_ADD_MEMBERSHIP)); | |
1790 | scm_c_define ("IP_DROP_MEMBERSHIP", scm_from_int (IP_DROP_MEMBERSHIP)); | |
1791 | #endif | |
1792 | ||
511246a1 TCM |
1793 | #ifdef IP_MULTICAST_TTL |
1794 | scm_c_define ("IP_MULTICAST_TTL", scm_from_int ( IP_MULTICAST_TTL)); | |
1795 | #endif | |
1796 | ||
1797 | #ifdef IP_MULTICAST_IF | |
1798 | scm_c_define ("IP_MULTICAST_IF", scm_from_int ( IP_MULTICAST_IF)); | |
1799 | #endif | |
1800 | ||
0f2d19dd | 1801 | scm_add_feature ("socket"); |
370312ae | 1802 | |
a0599745 | 1803 | #include "libguile/socket.x" |
0f2d19dd JB |
1804 | } |
1805 | ||
89e00824 ML |
1806 | |
1807 | /* | |
1808 | Local Variables: | |
1809 | c-file-style: "gnu" | |
1810 | End: | |
1811 | */ |