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> |
69d49ac8 | 28 | #include <gmp.h> |
cc948107 | 29 | #include <verify.h> |
e6e2e95a | 30 | |
a0599745 | 31 | #include "libguile/_scm.h" |
2fa901a5 | 32 | #include "libguile/arrays.h" |
a0599745 MD |
33 | #include "libguile/feature.h" |
34 | #include "libguile/fports.h" | |
35 | #include "libguile/strings.h" | |
36 | #include "libguile/vectors.h" | |
7f9994d9 | 37 | #include "libguile/dynwind.h" |
587a3355 | 38 | #include "libguile/srfi-13.h" |
20e6290e | 39 | |
a0599745 MD |
40 | #include "libguile/validate.h" |
41 | #include "libguile/socket.h" | |
95b88819 | 42 | |
d21a1dc8 LC |
43 | #if SCM_ENABLE_DEPRECATED == 1 |
44 | # include "libguile/deprecation.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 JB |
56 | #include <sys/types.h> |
57 | #include <sys/socket.h> | |
1ba8c23a | 58 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
0f2d19dd | 59 | #include <sys/un.h> |
0e958795 | 60 | #endif |
0f2d19dd JB |
61 | #include <netinet/in.h> |
62 | #include <netdb.h> | |
63 | #include <arpa/inet.h> | |
09b204d3 | 64 | |
0f2d19dd | 65 | |
97d0e20b GH |
66 | #if defined (HAVE_UNIX_DOMAIN_SOCKETS) && !defined (SUN_LEN) |
67 | #define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) \ | |
68 | + strlen ((ptr)->sun_path)) | |
69 | #endif | |
70 | ||
f43f3620 LC |
71 | /* The largest possible socket address. Wrapping it in a union guarantees |
72 | that the compiler will make it suitably aligned. */ | |
73 | typedef union | |
74 | { | |
75 | struct sockaddr sockaddr; | |
76 | struct sockaddr_in sockaddr_in; | |
77 | ||
78 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
79 | struct sockaddr_un sockaddr_un; | |
80 | #endif | |
81 | #ifdef HAVE_IPV6 | |
82 | struct sockaddr_in6 sockaddr_in6; | |
83 | #endif | |
84 | } scm_t_max_sockaddr; | |
85 | ||
86 | ||
87 | /* Maximum size of a socket address. */ | |
88 | #define MAX_ADDR_SIZE (sizeof (scm_t_max_sockaddr)) | |
89 | ||
90 | ||
0f2d19dd JB |
91 | \f |
92 | ||
a1ec6916 | 93 | SCM_DEFINE (scm_htons, "htons", 1, 0, 0, |
eefae538 GH |
94 | (SCM value), |
95 | "Convert a 16 bit quantity from host to network byte ordering.\n" | |
96 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
97 | "and returned as a new integer.") | |
1bbd0b84 | 98 | #define FUNC_NAME s_scm_htons |
5c11cc9d | 99 | { |
7cee5b31 | 100 | return scm_from_ushort (htons (scm_to_ushort (value))); |
5c11cc9d | 101 | } |
1bbd0b84 | 102 | #undef FUNC_NAME |
5c11cc9d | 103 | |
a1ec6916 | 104 | SCM_DEFINE (scm_ntohs, "ntohs", 1, 0, 0, |
eefae538 GH |
105 | (SCM value), |
106 | "Convert a 16 bit quantity from network to host byte ordering.\n" | |
107 | "@var{value} is packed into 2 bytes, which are then converted\n" | |
108 | "and returned as a new integer.") | |
1bbd0b84 | 109 | #define FUNC_NAME s_scm_ntohs |
5c11cc9d | 110 | { |
7cee5b31 | 111 | return scm_from_ushort (ntohs (scm_to_ushort (value))); |
5c11cc9d | 112 | } |
1bbd0b84 | 113 | #undef FUNC_NAME |
5c11cc9d | 114 | |
a1ec6916 | 115 | SCM_DEFINE (scm_htonl, "htonl", 1, 0, 0, |
eefae538 GH |
116 | (SCM value), |
117 | "Convert a 32 bit quantity from host to network byte ordering.\n" | |
118 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
119 | "and returned as a new integer.") | |
1bbd0b84 | 120 | #define FUNC_NAME s_scm_htonl |
5c11cc9d | 121 | { |
8ab3d8a0 | 122 | return scm_from_ulong (htonl (scm_to_uint32 (value))); |
5c11cc9d | 123 | } |
1bbd0b84 | 124 | #undef FUNC_NAME |
5c11cc9d | 125 | |
a1ec6916 | 126 | SCM_DEFINE (scm_ntohl, "ntohl", 1, 0, 0, |
eefae538 GH |
127 | (SCM value), |
128 | "Convert a 32 bit quantity from network to host byte ordering.\n" | |
129 | "@var{value} is packed into 4 bytes, which are then converted\n" | |
130 | "and returned as a new integer.") | |
1bbd0b84 | 131 | #define FUNC_NAME s_scm_ntohl |
5c11cc9d | 132 | { |
8ab3d8a0 | 133 | return scm_from_ulong (ntohl (scm_to_uint32 (value))); |
5c11cc9d | 134 | } |
1bbd0b84 | 135 | #undef FUNC_NAME |
5c11cc9d | 136 | |
66c73b76 GH |
137 | #ifdef HAVE_INET_NETOF |
138 | SCM_DEFINE (scm_inet_netof, "inet-netof", 1, 0, 0, | |
139 | (SCM address), | |
eefae538 GH |
140 | "Return the network number part of the given IPv4\n" |
141 | "Internet address. E.g.,\n\n" | |
66c73b76 GH |
142 | "@lisp\n" |
143 | "(inet-netof 2130706433) @result{} 127\n" | |
144 | "@end lisp") | |
145 | #define FUNC_NAME s_scm_inet_netof | |
146 | { | |
147 | struct in_addr addr; | |
148 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
b9bd8526 | 149 | return scm_from_ulong (inet_netof (addr)); |
66c73b76 GH |
150 | } |
151 | #undef FUNC_NAME | |
152 | #endif | |
153 | ||
154 | #ifdef HAVE_INET_LNAOF | |
155 | SCM_DEFINE (scm_lnaof, "inet-lnaof", 1, 0, 0, | |
156 | (SCM address), | |
157 | "Return the local-address-with-network part of the given\n" | |
eefae538 GH |
158 | "IPv4 Internet address, using the obsolete class A/B/C system.\n" |
159 | "E.g.,\n\n" | |
66c73b76 GH |
160 | "@lisp\n" |
161 | "(inet-lnaof 2130706433) @result{} 1\n" | |
162 | "@end lisp") | |
163 | #define FUNC_NAME s_scm_lnaof | |
164 | { | |
165 | struct in_addr addr; | |
166 | addr.s_addr = htonl (SCM_NUM2ULONG (1, address)); | |
b9bd8526 | 167 | return scm_from_ulong (inet_lnaof (addr)); |
66c73b76 GH |
168 | } |
169 | #undef FUNC_NAME | |
170 | #endif | |
171 | ||
172 | #ifdef HAVE_INET_MAKEADDR | |
173 | SCM_DEFINE (scm_inet_makeaddr, "inet-makeaddr", 2, 0, 0, | |
174 | (SCM net, SCM lna), | |
eefae538 | 175 | "Make an IPv4 Internet address by combining the network number\n" |
66c73b76 | 176 | "@var{net} with the local-address-within-network number\n" |
eefae538 | 177 | "@var{lna}. E.g.,\n\n" |
66c73b76 GH |
178 | "@lisp\n" |
179 | "(inet-makeaddr 127 1) @result{} 2130706433\n" | |
180 | "@end lisp") | |
181 | #define FUNC_NAME s_scm_inet_makeaddr | |
182 | { | |
183 | struct in_addr addr; | |
184 | unsigned long netnum; | |
185 | unsigned long lnanum; | |
186 | ||
187 | netnum = SCM_NUM2ULONG (1, net); | |
188 | lnanum = SCM_NUM2ULONG (2, lna); | |
189 | addr = inet_makeaddr (netnum, lnanum); | |
b9bd8526 | 190 | return scm_from_ulong (ntohl (addr.s_addr)); |
66c73b76 GH |
191 | } |
192 | #undef FUNC_NAME | |
193 | #endif | |
194 | ||
a57a0b1e | 195 | #ifdef HAVE_IPV6 |
eefae538 | 196 | |
66c73b76 GH |
197 | /* flip a 128 bit IPv6 address between host and network order. */ |
198 | #ifdef WORDS_BIGENDIAN | |
199 | #define FLIP_NET_HOST_128(addr) | |
200 | #else | |
201 | #define FLIP_NET_HOST_128(addr)\ | |
202 | {\ | |
203 | int i;\ | |
204 | \ | |
205 | for (i = 0; i < 8; i++)\ | |
206 | {\ | |
2de4f939 | 207 | scm_t_uint8 c = (addr)[i];\ |
66c73b76 GH |
208 | \ |
209 | (addr)[i] = (addr)[15 - i];\ | |
210 | (addr)[15 - i] = c;\ | |
211 | }\ | |
212 | } | |
213 | #endif | |
214 | ||
2de4f939 RB |
215 | #ifdef WORDS_BIGENDIAN |
216 | #define FLIPCPY_NET_HOST_128(dest, src) memcpy (dest, src, 16) | |
217 | #else | |
218 | #define FLIPCPY_NET_HOST_128(dest, src) \ | |
219 | { \ | |
220 | const scm_t_uint8 *tmp_srcp = (src) + 15; \ | |
221 | scm_t_uint8 *tmp_destp = (dest); \ | |
222 | \ | |
223 | do { \ | |
224 | *tmp_destp++ = *tmp_srcp--; \ | |
225 | } while (tmp_srcp != (src)); \ | |
226 | } | |
227 | #endif | |
228 | ||
229 | ||
7310ad0c | 230 | #if (SIZEOF_SCM_T_BITS * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
231 | #error "Assumption that scm_t_bits <= 128 bits has been violated." |
232 | #endif | |
233 | ||
7310ad0c | 234 | #if (SIZEOF_UNSIGNED_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
235 | #error "Assumption that unsigned long <= 128 bits has been violated." |
236 | #endif | |
237 | ||
7310ad0c | 238 | #if (SIZEOF_UNSIGNED_LONG_LONG * SCM_CHAR_BIT) > 128 |
2de4f939 RB |
239 | #error "Assumption that unsigned long long <= 128 bits has been violated." |
240 | #endif | |
241 | ||
66c73b76 GH |
242 | /* convert a 128 bit IPv6 address in network order to a host ordered |
243 | SCM integer. */ | |
7cee5b31 MV |
244 | static SCM |
245 | scm_from_ipv6 (const scm_t_uint8 *src) | |
66c73b76 | 246 | { |
2b4d1547 KR |
247 | SCM result = scm_i_mkbig (); |
248 | mpz_import (SCM_I_BIG_MPZ (result), | |
249 | 1, /* chunk */ | |
250 | 1, /* big-endian chunk ordering */ | |
251 | 16, /* chunks are 16 bytes long */ | |
252 | 1, /* big-endian byte ordering */ | |
253 | 0, /* "nails" -- leading unused bits per chunk */ | |
254 | src); | |
255 | return scm_i_normbig (result); | |
256 | } | |
66c73b76 GH |
257 | |
258 | /* convert a host ordered SCM integer to a 128 bit IPv6 address in | |
259 | network order. */ | |
7cee5b31 MV |
260 | static void |
261 | scm_to_ipv6 (scm_t_uint8 dst[16], SCM src) | |
66c73b76 | 262 | { |
e11e83f3 | 263 | if (SCM_I_INUMP (src)) |
66c73b76 | 264 | { |
e11e83f3 | 265 | scm_t_signed_bits n = SCM_I_INUM (src); |
7cee5b31 MV |
266 | if (n < 0) |
267 | scm_out_of_range (NULL, src); | |
2de4f939 RB |
268 | #ifdef WORDS_BIGENDIAN |
269 | memset (dst, 0, 16 - sizeof (scm_t_signed_bits)); | |
270 | memcpy (dst + (16 - sizeof (scm_t_signed_bits)), | |
271 | &n, | |
272 | sizeof (scm_t_signed_bits)); | |
273 | #else | |
274 | memset (dst + sizeof (scm_t_signed_bits), | |
275 | 0, | |
276 | 16 - sizeof (scm_t_signed_bits)); | |
277 | /* FIXME: this pair of ops is kinda wasteful -- should rewrite as | |
278 | a single loop perhaps, similar to the handling of bignums. */ | |
279 | memcpy (dst, &n, sizeof (scm_t_signed_bits)); | |
280 | FLIP_NET_HOST_128 (dst); | |
281 | #endif | |
66c73b76 | 282 | } |
7cee5b31 | 283 | else if (SCM_BIGP (src)) |
66c73b76 | 284 | { |
2de4f939 | 285 | size_t count; |
7cee5b31 MV |
286 | |
287 | if ((mpz_sgn (SCM_I_BIG_MPZ (src)) < 0) | |
288 | || mpz_sizeinbase (SCM_I_BIG_MPZ (src), 2) > 128) | |
289 | scm_out_of_range (NULL, src); | |
290 | ||
66c73b76 | 291 | memset (dst, 0, 16); |
2de4f939 RB |
292 | mpz_export (dst, |
293 | &count, | |
294 | 1, /* big-endian chunk ordering */ | |
295 | 16, /* chunks are 16 bytes long */ | |
296 | 1, /* big-endian byte ordering */ | |
297 | 0, /* "nails" -- leading unused bits per chunk */ | |
298 | SCM_I_BIG_MPZ (src)); | |
299 | scm_remember_upto_here_1 (src); | |
66c73b76 | 300 | } |
2de4f939 | 301 | else |
1ff4da65 | 302 | scm_wrong_type_arg_msg ("scm_to_ipv6", 0, src, "integer"); |
2de4f939 RB |
303 | } |
304 | ||
e91f21dc | 305 | #endif /* HAVE_IPV6 */ |
66c73b76 | 306 | |
e91f21dc | 307 | \f |
66c73b76 | 308 | |
66c73b76 GH |
309 | SCM_DEFINE (scm_inet_ntop, "inet-ntop", 2, 0, 0, |
310 | (SCM family, SCM address), | |
eefae538 | 311 | "Convert a network address into a printable string.\n" |
66c73b76 GH |
312 | "Note that unlike the C version of this function,\n" |
313 | "the input 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 | 316 | "(inet-ntop AF_INET 2130706433) @result{} \"127.0.0.1\"\n" |
187a4390 NJ |
317 | "(inet-ntop AF_INET6 (- (expt 2 128) 1))\n" |
318 | " @result{} \"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\"\n" | |
66c73b76 GH |
319 | "@end lisp") |
320 | #define FUNC_NAME s_scm_inet_ntop | |
321 | { | |
322 | int af; | |
323 | #ifdef INET6_ADDRSTRLEN | |
324 | char dst[INET6_ADDRSTRLEN]; | |
325 | #else | |
326 | char dst[46]; | |
327 | #endif | |
7a5fb796 | 328 | const char *result; |
66c73b76 | 329 | |
7cee5b31 | 330 | af = scm_to_int (family); |
e91f21dc LC |
331 | SCM_ASSERT_RANGE (1, family, |
332 | af == AF_INET | |
333 | #ifdef HAVE_IPV6 | |
334 | || af == AF_INET6 | |
335 | #endif | |
336 | ); | |
66c73b76 | 337 | if (af == AF_INET) |
7a5fb796 LC |
338 | { |
339 | scm_t_uint32 addr4; | |
340 | ||
341 | addr4 = htonl (SCM_NUM2ULONG (2, address)); | |
342 | result = inet_ntop (af, &addr4, dst, sizeof (dst)); | |
343 | } | |
e91f21dc LC |
344 | #ifdef HAVE_IPV6 |
345 | else if (af == AF_INET6) | |
7a5fb796 LC |
346 | { |
347 | char addr6[16]; | |
348 | ||
349 | scm_to_ipv6 ((scm_t_uint8 *) addr6, address); | |
350 | result = inet_ntop (af, &addr6, dst, sizeof (dst)); | |
351 | } | |
e91f21dc LC |
352 | #endif |
353 | else | |
354 | SCM_MISC_ERROR ("unsupported address family", family); | |
7a5fb796 LC |
355 | |
356 | if (result == NULL) | |
66c73b76 | 357 | SCM_SYSERROR; |
7a5fb796 | 358 | |
cc95e00a | 359 | return scm_from_locale_string (dst); |
66c73b76 GH |
360 | } |
361 | #undef FUNC_NAME | |
66c73b76 | 362 | |
e91f21dc LC |
363 | SCM_DEFINE (scm_inet_pton, "inet-pton", 2, 0, 0, |
364 | (SCM family, SCM address), | |
365 | "Convert a string containing a printable network address to\n" | |
366 | "an integer address. Note that unlike the C version of this\n" | |
367 | "function,\n" | |
368 | "the result is an integer with normal host byte ordering.\n" | |
369 | "@var{family} can be @code{AF_INET} or @code{AF_INET6}. E.g.,\n\n" | |
370 | "@lisp\n" | |
371 | "(inet-pton AF_INET \"127.0.0.1\") @result{} 2130706433\n" | |
372 | "(inet-pton AF_INET6 \"::1\") @result{} 1\n" | |
373 | "@end lisp") | |
374 | #define FUNC_NAME s_scm_inet_pton | |
375 | { | |
376 | int af; | |
377 | char *src; | |
378 | scm_t_uint32 dst[4]; | |
379 | int rv, eno; | |
380 | ||
381 | af = scm_to_int (family); | |
382 | SCM_ASSERT_RANGE (1, family, | |
383 | af == AF_INET | |
384 | #ifdef HAVE_IPV6 | |
385 | || af == AF_INET6 | |
386 | #endif | |
387 | ); | |
eefae538 | 388 | |
e91f21dc LC |
389 | src = scm_to_locale_string (address); |
390 | rv = inet_pton (af, src, dst); | |
391 | eno = errno; | |
392 | free (src); | |
393 | errno = eno; | |
394 | ||
395 | if (rv == -1) | |
396 | SCM_SYSERROR; | |
397 | else if (rv == 0) | |
398 | SCM_MISC_ERROR ("Bad address", SCM_EOL); | |
399 | if (af == AF_INET) | |
400 | return scm_from_ulong (ntohl (*dst)); | |
401 | #ifdef HAVE_IPV6 | |
402 | else if (af == AF_INET6) | |
403 | return scm_from_ipv6 ((scm_t_uint8 *) dst); | |
404 | #endif | |
405 | else | |
406 | SCM_MISC_ERROR ("unsupported address family", family); | |
407 | } | |
408 | #undef FUNC_NAME | |
409 | ||
410 | \f | |
bc45012d | 411 | SCM_SYMBOL (sym_socket, "socket"); |
82ddea4e | 412 | |
439006bf | 413 | #define SCM_SOCK_FD_TO_PORT(fd) scm_fdes_to_port (fd, "r+0", sym_socket) |
1bbd0b84 | 414 | |
a1ec6916 | 415 | SCM_DEFINE (scm_socket, "socket", 3, 0, 0, |
1bbd0b84 | 416 | (SCM family, SCM style, SCM proto), |
1e6808ea | 417 | "Return a new socket port of the type specified by @var{family},\n" |
eefae538 | 418 | "@var{style} and @var{proto}. All three parameters are\n" |
3453619b GH |
419 | "integers. Supported values for @var{family} are\n" |
420 | "@code{AF_UNIX}, @code{AF_INET} and @code{AF_INET6}.\n" | |
421 | "Typical values for @var{style} are @code{SOCK_STREAM},\n" | |
eefae538 GH |
422 | "@code{SOCK_DGRAM} and @code{SOCK_RAW}.\n\n" |
423 | "@var{proto} can be obtained from a protocol name using\n" | |
1e6808ea | 424 | "@code{getprotobyname}. A value of zero specifies the default\n" |
eefae538 | 425 | "protocol, which is usually right.\n\n" |
1e6808ea MG |
426 | "A single socket port cannot by used for communication until it\n" |
427 | "has been connected to another socket.") | |
1bbd0b84 | 428 | #define FUNC_NAME s_scm_socket |
0f2d19dd | 429 | { |
370312ae | 430 | int fd; |
370312ae | 431 | |
7cee5b31 MV |
432 | fd = socket (scm_to_int (family), |
433 | scm_to_int (style), | |
434 | scm_to_int (proto)); | |
439006bf GH |
435 | if (fd == -1) |
436 | SCM_SYSERROR; | |
437 | return SCM_SOCK_FD_TO_PORT (fd); | |
0f2d19dd | 438 | } |
1bbd0b84 | 439 | #undef FUNC_NAME |
0f2d19dd | 440 | |
0e958795 | 441 | #ifdef HAVE_SOCKETPAIR |
a1ec6916 | 442 | SCM_DEFINE (scm_socketpair, "socketpair", 3, 0, 0, |
1bbd0b84 | 443 | (SCM family, SCM style, SCM proto), |
1e6808ea | 444 | "Return a pair of connected (but unnamed) socket ports of the\n" |
eefae538 | 445 | "type specified by @var{family}, @var{style} and @var{proto}.\n" |
1e6808ea MG |
446 | "Many systems support only socket pairs of the @code{AF_UNIX}\n" |
447 | "family. Zero is likely to be the only meaningful value for\n" | |
eefae538 | 448 | "@var{proto}.") |
1bbd0b84 | 449 | #define FUNC_NAME s_scm_socketpair |
0f2d19dd | 450 | { |
370312ae GH |
451 | int fam; |
452 | int fd[2]; | |
370312ae | 453 | |
7cee5b31 | 454 | fam = scm_to_int (family); |
370312ae | 455 | |
7cee5b31 | 456 | if (socketpair (fam, scm_to_int (style), scm_to_int (proto), fd) == -1) |
1bbd0b84 | 457 | SCM_SYSERROR; |
370312ae | 458 | |
439006bf | 459 | return scm_cons (SCM_SOCK_FD_TO_PORT (fd[0]), SCM_SOCK_FD_TO_PORT (fd[1])); |
0f2d19dd | 460 | } |
1bbd0b84 | 461 | #undef FUNC_NAME |
0e958795 | 462 | #endif |
0f2d19dd | 463 | |
f43f3620 LC |
464 | /* Possible results for `getsockopt ()'. Wrapping it into a union guarantees |
465 | suitable alignment. */ | |
466 | typedef union | |
467 | { | |
468 | #ifdef HAVE_STRUCT_LINGER | |
469 | struct linger linger; | |
470 | #endif | |
471 | size_t size; | |
472 | int integer; | |
473 | } scm_t_getsockopt_result; | |
474 | ||
a1ec6916 | 475 | SCM_DEFINE (scm_getsockopt, "getsockopt", 3, 0, 0, |
1bbd0b84 | 476 | (SCM sock, SCM level, SCM optname), |
72e3dae1 KR |
477 | "Return an option value from socket port @var{sock}.\n" |
478 | "\n" | |
479 | "@var{level} is an integer specifying a protocol layer, either\n" | |
480 | "@code{SOL_SOCKET} for socket level options, or a protocol\n" | |
481 | "number from the @code{IPPROTO} constants or @code{getprotoent}\n" | |
482 | "(@pxref{Network Databases}).\n" | |
483 | "\n" | |
484 | "@defvar SOL_SOCKET\n" | |
485 | "@defvarx IPPROTO_IP\n" | |
486 | "@defvarx IPPROTO_TCP\n" | |
487 | "@defvarx IPPROTO_UDP\n" | |
488 | "@end defvar\n" | |
489 | "\n" | |
490 | "@var{optname} is an integer specifying an option within the\n" | |
491 | "protocol layer.\n" | |
492 | "\n" | |
493 | "For @code{SOL_SOCKET} level the following @var{optname}s are\n" | |
494 | "defined (when provided by the system). For their meaning see\n" | |
495 | "@ref{Socket-Level Options,,, libc, The GNU C Library Reference\n" | |
496 | "Manual}, or @command{man 7 socket}.\n" | |
497 | "\n" | |
498 | "@defvar SO_DEBUG\n" | |
499 | "@defvarx SO_REUSEADDR\n" | |
500 | "@defvarx SO_STYLE\n" | |
501 | "@defvarx SO_TYPE\n" | |
502 | "@defvarx SO_ERROR\n" | |
503 | "@defvarx SO_DONTROUTE\n" | |
504 | "@defvarx SO_BROADCAST\n" | |
505 | "@defvarx SO_SNDBUF\n" | |
506 | "@defvarx SO_RCVBUF\n" | |
507 | "@defvarx SO_KEEPALIVE\n" | |
508 | "@defvarx SO_OOBINLINE\n" | |
509 | "@defvarx SO_NO_CHECK\n" | |
510 | "@defvarx SO_PRIORITY\n" | |
511 | "The value returned is an integer.\n" | |
512 | "@end defvar\n" | |
513 | "\n" | |
514 | "@defvar SO_LINGER\n" | |
b7e64f8b BT |
515 | "The value returned is a pair of integers\n" |
516 | "@code{(@var{enable} . @var{timeout})}. On old systems without\n" | |
72e3dae1 | 517 | "timeout support (ie.@: without @code{struct linger}), only\n" |
b7e64f8b | 518 | "@var{enable} has an effect but the value in Guile is always a\n" |
72e3dae1 KR |
519 | "pair.\n" |
520 | "@end defvar") | |
1bbd0b84 | 521 | #define FUNC_NAME s_scm_getsockopt |
0f2d19dd | 522 | { |
370312ae | 523 | int fd; |
439006bf | 524 | /* size of optval is the largest supported option. */ |
f43f3620 LC |
525 | scm_t_getsockopt_result optval; |
526 | socklen_t optlen = sizeof (optval); | |
370312ae GH |
527 | int ilevel; |
528 | int ioptname; | |
0f2d19dd | 529 | |
78446828 | 530 | sock = SCM_COERCE_OUTPORT (sock); |
2cf6d014 | 531 | SCM_VALIDATE_OPFPORT (1, sock); |
7cee5b31 MV |
532 | ilevel = scm_to_int (level); |
533 | ioptname = scm_to_int (optname); | |
0f2d19dd | 534 | |
ee149d03 | 535 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 536 | if (getsockopt (fd, ilevel, ioptname, (void *) &optval, &optlen) == -1) |
1bbd0b84 | 537 | SCM_SYSERROR; |
1cc91f1b | 538 | |
439006bf | 539 | if (ilevel == SOL_SOCKET) |
0f2d19dd | 540 | { |
439006bf GH |
541 | #ifdef SO_LINGER |
542 | if (ioptname == SO_LINGER) | |
543 | { | |
370312ae | 544 | #ifdef HAVE_STRUCT_LINGER |
f43f3620 | 545 | struct linger *ling = (struct linger *) &optval; |
439006bf | 546 | |
b9bd8526 MV |
547 | return scm_cons (scm_from_long (ling->l_onoff), |
548 | scm_from_long (ling->l_linger)); | |
370312ae | 549 | #else |
f43f3620 | 550 | return scm_cons (scm_from_long (*(int *) &optval), |
7cee5b31 | 551 | scm_from_int (0)); |
0f2d19dd | 552 | #endif |
439006bf GH |
553 | } |
554 | else | |
370312ae | 555 | #endif |
439006bf | 556 | if (0 |
370312ae | 557 | #ifdef SO_SNDBUF |
439006bf | 558 | || ioptname == SO_SNDBUF |
370312ae GH |
559 | #endif |
560 | #ifdef SO_RCVBUF | |
439006bf | 561 | || ioptname == SO_RCVBUF |
370312ae | 562 | #endif |
439006bf GH |
563 | ) |
564 | { | |
f43f3620 | 565 | return scm_from_size_t (*(size_t *) &optval); |
439006bf GH |
566 | } |
567 | } | |
f43f3620 | 568 | return scm_from_int (*(int *) &optval); |
0f2d19dd | 569 | } |
1bbd0b84 | 570 | #undef FUNC_NAME |
0f2d19dd | 571 | |
a1ec6916 | 572 | SCM_DEFINE (scm_setsockopt, "setsockopt", 4, 0, 0, |
1bbd0b84 | 573 | (SCM sock, SCM level, SCM optname, SCM value), |
72e3dae1 KR |
574 | "Set an option on socket port @var{sock}. The return value is\n" |
575 | "unspecified.\n" | |
576 | "\n" | |
577 | "@var{level} is an integer specifying a protocol layer, either\n" | |
578 | "@code{SOL_SOCKET} for socket level options, or a protocol\n" | |
579 | "number from the @code{IPPROTO} constants or @code{getprotoent}\n" | |
580 | "(@pxref{Network Databases}).\n" | |
581 | "\n" | |
582 | "@defvar SOL_SOCKET\n" | |
583 | "@defvarx IPPROTO_IP\n" | |
584 | "@defvarx IPPROTO_TCP\n" | |
585 | "@defvarx IPPROTO_UDP\n" | |
586 | "@end defvar\n" | |
587 | "\n" | |
588 | "@var{optname} is an integer specifying an option within the\n" | |
589 | "protocol layer.\n" | |
590 | "\n" | |
591 | "For @code{SOL_SOCKET} level the following @var{optname}s are\n" | |
592 | "defined (when provided by the system). For their meaning see\n" | |
593 | "@ref{Socket-Level Options,,, libc, The GNU C Library Reference\n" | |
594 | "Manual}, or @command{man 7 socket}.\n" | |
595 | "\n" | |
596 | "@defvar SO_DEBUG\n" | |
597 | "@defvarx SO_REUSEADDR\n" | |
598 | "@defvarx SO_STYLE\n" | |
599 | "@defvarx SO_TYPE\n" | |
600 | "@defvarx SO_ERROR\n" | |
601 | "@defvarx SO_DONTROUTE\n" | |
602 | "@defvarx SO_BROADCAST\n" | |
603 | "@defvarx SO_SNDBUF\n" | |
604 | "@defvarx SO_RCVBUF\n" | |
605 | "@defvarx SO_KEEPALIVE\n" | |
606 | "@defvarx SO_OOBINLINE\n" | |
607 | "@defvarx SO_NO_CHECK\n" | |
608 | "@defvarx SO_PRIORITY\n" | |
609 | "@var{value} is an integer.\n" | |
610 | "@end defvar\n" | |
611 | "\n" | |
612 | "@defvar SO_LINGER\n" | |
613 | "@var{value} is a pair of integers @code{(@var{ENABLE}\n" | |
614 | ". @var{TIMEOUT})}. On old systems without timeout support\n" | |
615 | "(ie.@: without @code{struct linger}), only @var{ENABLE} has an\n" | |
616 | "effect but the value in Guile is always a pair.\n" | |
617 | "@end defvar\n" | |
618 | "\n" | |
619 | "@c Note that we refer only to ``man ip'' here. On GNU/Linux it's\n" | |
620 | "@c ``man 7 ip'' but on NetBSD it's ``man 4 ip''.\n" | |
621 | "@c \n" | |
622 | "For IP level (@code{IPPROTO_IP}) the following @var{optname}s\n" | |
623 | "are defined (when provided by the system). See @command{man\n" | |
624 | "ip} for what they mean.\n" | |
625 | "\n" | |
511246a1 TCM |
626 | "@defvar IP_MULTICAST_IF\n" |
627 | "This sets the source interface used by multicast traffic.\n" | |
628 | "@end defvar\n" | |
629 | "\n" | |
630 | "@defvar IP_MULTICAST_TTL\n" | |
631 | "This sets the default TTL for multicast traffic. This defaults \n" | |
632 | "to 1 and should be increased to allow traffic to pass beyond the\n" | |
633 | "local network.\n" | |
634 | "@end defvar\n" | |
635 | "\n" | |
72e3dae1 KR |
636 | "@defvar IP_ADD_MEMBERSHIP\n" |
637 | "@defvarx IP_DROP_MEMBERSHIP\n" | |
638 | "These can be used only with @code{setsockopt}, not\n" | |
639 | "@code{getsockopt}. @var{value} is a pair\n" | |
640 | "@code{(@var{MULTIADDR} . @var{INTERFACEADDR})} of IPv4\n" | |
641 | "addresses (@pxref{Network Address Conversion}).\n" | |
642 | "@var{MULTIADDR} is a multicast address to be added to or\n" | |
643 | "dropped from the interface @var{INTERFACEADDR}.\n" | |
644 | "@var{INTERFACEADDR} can be @code{INADDR_ANY} to have the system\n" | |
645 | "select the interface. @var{INTERFACEADDR} can also be an\n" | |
f1b7209b KR |
646 | "interface index number, on systems supporting that.\n" |
647 | "@end defvar") | |
1bbd0b84 | 648 | #define FUNC_NAME s_scm_setsockopt |
0f2d19dd | 649 | { |
370312ae | 650 | int fd; |
1c80707c MV |
651 | |
652 | int opt_int; | |
370312ae | 653 | #ifdef HAVE_STRUCT_LINGER |
1c80707c | 654 | struct linger opt_linger; |
370312ae | 655 | #endif |
ecc9f40f | 656 | |
56a3dcd4 | 657 | #ifdef HAVE_STRUCT_IP_MREQ |
1c80707c | 658 | struct ip_mreq opt_mreq; |
ecc9f40f | 659 | #endif |
1c80707c MV |
660 | |
661 | const void *optval = NULL; | |
662 | socklen_t optlen = 0; | |
663 | ||
370312ae | 664 | int ilevel, ioptname; |
439006bf | 665 | |
78446828 | 666 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf GH |
667 | |
668 | SCM_VALIDATE_OPFPORT (1, sock); | |
7cee5b31 MV |
669 | ilevel = scm_to_int (level); |
670 | ioptname = scm_to_int (optname); | |
439006bf | 671 | |
ee149d03 | 672 | fd = SCM_FPORT_FDES (sock); |
1c80707c | 673 | |
439006bf | 674 | if (ilevel == SOL_SOCKET) |
370312ae | 675 | { |
439006bf GH |
676 | #ifdef SO_LINGER |
677 | if (ioptname == SO_LINGER) | |
678 | { | |
370312ae | 679 | #ifdef HAVE_STRUCT_LINGER |
d2e53ed6 | 680 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c MV |
681 | opt_linger.l_onoff = scm_to_int (SCM_CAR (value)); |
682 | opt_linger.l_linger = scm_to_int (SCM_CDR (value)); | |
683 | optlen = sizeof (struct linger); | |
684 | optval = &opt_linger; | |
370312ae | 685 | #else |
d2e53ed6 | 686 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); |
1c80707c | 687 | opt_int = scm_to_int (SCM_CAR (value)); |
439006bf | 688 | /* timeout is ignored, but may as well validate it. */ |
1c80707c MV |
689 | scm_to_int (SCM_CDR (value)); |
690 | optlen = sizeof (int); | |
691 | optval = &opt_int; | |
439006bf GH |
692 | #endif |
693 | } | |
694 | else | |
695 | #endif | |
696 | if (0 | |
370312ae | 697 | #ifdef SO_SNDBUF |
439006bf | 698 | || ioptname == SO_SNDBUF |
370312ae GH |
699 | #endif |
700 | #ifdef SO_RCVBUF | |
439006bf | 701 | || ioptname == SO_RCVBUF |
370312ae | 702 | #endif |
439006bf GH |
703 | ) |
704 | { | |
1c80707c MV |
705 | opt_int = scm_to_int (value); |
706 | optlen = sizeof (size_t); | |
707 | optval = &opt_int; | |
439006bf GH |
708 | } |
709 | } | |
1c80707c | 710 | |
56a3dcd4 | 711 | #ifdef HAVE_STRUCT_IP_MREQ |
1c80707c MV |
712 | if (ilevel == IPPROTO_IP && |
713 | (ioptname == IP_ADD_MEMBERSHIP || ioptname == IP_DROP_MEMBERSHIP)) | |
0f2d19dd | 714 | { |
1c80707c MV |
715 | /* Fourth argument must be a pair of addresses. */ |
716 | SCM_ASSERT (scm_is_pair (value), value, SCM_ARG4, FUNC_NAME); | |
717 | opt_mreq.imr_multiaddr.s_addr = htonl (scm_to_ulong (SCM_CAR (value))); | |
718 | opt_mreq.imr_interface.s_addr = htonl (scm_to_ulong (SCM_CDR (value))); | |
719 | optlen = sizeof (opt_mreq); | |
720 | optval = &opt_mreq; | |
721 | } | |
ecc9f40f | 722 | #endif |
439006bf | 723 | |
1c80707c MV |
724 | if (optval == NULL) |
725 | { | |
726 | /* Most options take an int. */ | |
727 | opt_int = scm_to_int (value); | |
728 | optlen = sizeof (int); | |
729 | optval = &opt_int; | |
0f2d19dd | 730 | } |
1c80707c MV |
731 | |
732 | if (setsockopt (fd, ilevel, ioptname, optval, optlen) == -1) | |
1bbd0b84 | 733 | SCM_SYSERROR; |
370312ae | 734 | return SCM_UNSPECIFIED; |
0f2d19dd | 735 | } |
1bbd0b84 | 736 | #undef FUNC_NAME |
0f2d19dd | 737 | |
cc948107 LC |
738 | /* Our documentation hard-codes this mapping, so make sure it holds. */ |
739 | verify (SHUT_RD == 0); | |
740 | verify (SHUT_WR == 1); | |
741 | verify (SHUT_RDWR == 2); | |
742 | ||
a1ec6916 | 743 | SCM_DEFINE (scm_shutdown, "shutdown", 2, 0, 0, |
1bbd0b84 | 744 | (SCM sock, SCM how), |
b380b885 | 745 | "Sockets can be closed simply by using @code{close-port}. The\n" |
bb2c02f2 | 746 | "@code{shutdown} procedure allows reception or transmission on a\n" |
b380b885 MD |
747 | "connection to be shut down individually, according to the parameter\n" |
748 | "@var{how}:\n\n" | |
749 | "@table @asis\n" | |
750 | "@item 0\n" | |
751 | "Stop receiving data for this socket. If further data arrives, reject it.\n" | |
752 | "@item 1\n" | |
753 | "Stop trying to transmit data from this socket. Discard any\n" | |
754 | "data waiting to be sent. Stop looking for acknowledgement of\n" | |
755 | "data already sent; don't retransmit it if it is lost.\n" | |
756 | "@item 2\n" | |
757 | "Stop both reception and transmission.\n" | |
758 | "@end table\n\n" | |
759 | "The return value is unspecified.") | |
1bbd0b84 | 760 | #define FUNC_NAME s_scm_shutdown |
0f2d19dd | 761 | { |
370312ae | 762 | int fd; |
78446828 | 763 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 764 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 765 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 766 | if (shutdown (fd, scm_to_signed_integer (how, 0, 2)) == -1) |
1bbd0b84 | 767 | SCM_SYSERROR; |
370312ae GH |
768 | return SCM_UNSPECIFIED; |
769 | } | |
1bbd0b84 | 770 | #undef FUNC_NAME |
0f2d19dd | 771 | |
370312ae GH |
772 | /* convert fam/address/args into a sockaddr of the appropriate type. |
773 | args is modified by removing the arguments actually used. | |
774 | which_arg and proc are used when reporting errors: | |
775 | which_arg is the position of address in the original argument list. | |
776 | proc is the name of the original procedure. | |
777 | size returns the size of the structure allocated. */ | |
778 | ||
bc732342 | 779 | static struct sockaddr * |
439006bf | 780 | scm_fill_sockaddr (int fam, SCM address, SCM *args, int which_arg, |
9c0129ac | 781 | const char *proc, size_t *size) |
3453619b | 782 | #define FUNC_NAME proc |
370312ae GH |
783 | { |
784 | switch (fam) | |
0f2d19dd | 785 | { |
370312ae GH |
786 | case AF_INET: |
787 | { | |
370312ae | 788 | struct sockaddr_in *soka; |
3453619b GH |
789 | unsigned long addr; |
790 | int port; | |
370312ae | 791 | |
3453619b GH |
792 | SCM_VALIDATE_ULONG_COPY (which_arg, address, addr); |
793 | SCM_VALIDATE_CONS (which_arg + 1, *args); | |
7cee5b31 | 794 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 795 | *args = SCM_CDR (*args); |
67329a9e | 796 | soka = (struct sockaddr_in *) scm_malloc (sizeof (struct sockaddr_in)); |
333a81cc | 797 | memset (soka, '\0', sizeof (struct sockaddr_in)); |
9c0129ac | 798 | |
482d311b | 799 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
3453619b GH |
800 | soka->sin_len = sizeof (struct sockaddr_in); |
801 | #endif | |
370312ae | 802 | soka->sin_family = AF_INET; |
3453619b GH |
803 | soka->sin_addr.s_addr = htonl (addr); |
804 | soka->sin_port = htons (port); | |
370312ae GH |
805 | *size = sizeof (struct sockaddr_in); |
806 | return (struct sockaddr *) soka; | |
807 | } | |
a57a0b1e | 808 | #ifdef HAVE_IPV6 |
3453619b GH |
809 | case AF_INET6: |
810 | { | |
811 | /* see RFC2553. */ | |
812 | int port; | |
813 | struct sockaddr_in6 *soka; | |
814 | unsigned long flowinfo = 0; | |
815 | unsigned long scope_id = 0; | |
816 | ||
3453619b | 817 | SCM_VALIDATE_CONS (which_arg + 1, *args); |
7cee5b31 | 818 | port = scm_to_int (SCM_CAR (*args)); |
3453619b | 819 | *args = SCM_CDR (*args); |
d2e53ed6 | 820 | if (scm_is_pair (*args)) |
3453619b GH |
821 | { |
822 | SCM_VALIDATE_ULONG_COPY (which_arg + 2, SCM_CAR (*args), flowinfo); | |
823 | *args = SCM_CDR (*args); | |
d2e53ed6 | 824 | if (scm_is_pair (*args)) |
3453619b GH |
825 | { |
826 | SCM_VALIDATE_ULONG_COPY (which_arg + 3, SCM_CAR (*args), | |
827 | scope_id); | |
828 | *args = SCM_CDR (*args); | |
829 | } | |
830 | } | |
67329a9e | 831 | soka = (struct sockaddr_in6 *) scm_malloc (sizeof (struct sockaddr_in6)); |
9c0129ac | 832 | |
56a3dcd4 | 833 | #ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN |
3453619b GH |
834 | soka->sin6_len = sizeof (struct sockaddr_in6); |
835 | #endif | |
836 | soka->sin6_family = AF_INET6; | |
7cee5b31 | 837 | scm_to_ipv6 (soka->sin6_addr.s6_addr, address); |
5a525b84 | 838 | soka->sin6_port = htons (port); |
3453619b | 839 | soka->sin6_flowinfo = flowinfo; |
5a525b84 | 840 | #ifdef HAVE_SIN6_SCOPE_ID |
3453619b | 841 | soka->sin6_scope_id = scope_id; |
5a525b84 | 842 | #endif |
3453619b GH |
843 | *size = sizeof (struct sockaddr_in6); |
844 | return (struct sockaddr *) soka; | |
845 | } | |
846 | #endif | |
1ba8c23a | 847 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS |
370312ae GH |
848 | case AF_UNIX: |
849 | { | |
850 | struct sockaddr_un *soka; | |
439006bf | 851 | int addr_size; |
7f9994d9 MV |
852 | char *c_address; |
853 | ||
661ae7ab | 854 | scm_dynwind_begin (0); |
7f9994d9 MV |
855 | |
856 | c_address = scm_to_locale_string (address); | |
661ae7ab | 857 | scm_dynwind_free (c_address); |
370312ae | 858 | |
439006bf GH |
859 | /* the static buffer size in sockaddr_un seems to be arbitrary |
860 | and not necessarily a hard limit. e.g., the glibc manual | |
861 | suggests it may be possible to declare it size 0. let's | |
862 | ignore it. if the O/S doesn't like the size it will cause | |
863 | connect/bind etc., to fail. sun_path is always the last | |
864 | member of the structure. */ | |
865 | addr_size = sizeof (struct sockaddr_un) | |
7f9994d9 | 866 | + max (0, strlen (c_address) + 1 - (sizeof soka->sun_path)); |
67329a9e | 867 | soka = (struct sockaddr_un *) scm_malloc (addr_size); |
439006bf GH |
868 | memset (soka, 0, addr_size); /* for sun_len: see sin_len above. */ |
869 | soka->sun_family = AF_UNIX; | |
7f9994d9 | 870 | strcpy (soka->sun_path, c_address); |
439006bf | 871 | *size = SUN_LEN (soka); |
7f9994d9 | 872 | |
661ae7ab | 873 | scm_dynwind_end (); |
370312ae GH |
874 | return (struct sockaddr *) soka; |
875 | } | |
0e958795 | 876 | #endif |
370312ae | 877 | default: |
e11e83f3 | 878 | scm_out_of_range (proc, scm_from_int (fam)); |
0f2d19dd | 879 | } |
0f2d19dd | 880 | } |
3453619b | 881 | #undef FUNC_NAME |
9c0129ac KR |
882 | |
883 | SCM_DEFINE (scm_connect, "connect", 2, 1, 1, | |
884 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 885 | "Initiate a connection from a socket using a specified address\n" |
3453619b GH |
886 | "family to the address\n" |
887 | "specified by @var{address} and possibly @var{args}.\n" | |
888 | "The format required for @var{address}\n" | |
889 | "and @var{args} depends on the family of the socket.\n\n" | |
b380b885 | 890 | "For a socket of family @code{AF_UNIX},\n" |
3453619b | 891 | "only @var{address} is specified and must be a string with the\n" |
b380b885 MD |
892 | "filename where the socket is to be created.\n\n" |
893 | "For a socket of family @code{AF_INET},\n" | |
3453619b GH |
894 | "@var{address} must be an integer IPv4 host address and\n" |
895 | "@var{args} must be a single integer port number.\n\n" | |
896 | "For a socket of family @code{AF_INET6},\n" | |
897 | "@var{address} must be an integer IPv6 host address and\n" | |
898 | "@var{args} may be up to three integers:\n" | |
899 | "port [flowinfo] [scope_id],\n" | |
900 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
901 | "Alternatively, the second argument can be a socket address object " |
902 | "as returned by @code{make-socket-address}, in which case the " | |
903 | "no additional arguments should be passed.\n\n" | |
b380b885 | 904 | "The return value is unspecified.") |
1bbd0b84 | 905 | #define FUNC_NAME s_scm_connect |
0f2d19dd | 906 | { |
370312ae GH |
907 | int fd; |
908 | struct sockaddr *soka; | |
9c0129ac | 909 | size_t size; |
0f2d19dd | 910 | |
78446828 | 911 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 912 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 913 | fd = SCM_FPORT_FDES (sock); |
9c0129ac | 914 | |
d223c3fc | 915 | if (scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
916 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a |
917 | `socket address' object. */ | |
918 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
919 | else | |
920 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
921 | &args, 3, FUNC_NAME, &size); | |
922 | ||
370312ae | 923 | if (connect (fd, soka, size) == -1) |
439006bf GH |
924 | { |
925 | int save_errno = errno; | |
9c0129ac | 926 | |
439006bf GH |
927 | free (soka); |
928 | errno = save_errno; | |
929 | SCM_SYSERROR; | |
930 | } | |
931 | free (soka); | |
370312ae | 932 | return SCM_UNSPECIFIED; |
0f2d19dd | 933 | } |
1bbd0b84 | 934 | #undef FUNC_NAME |
0f2d19dd | 935 | |
9c0129ac KR |
936 | SCM_DEFINE (scm_bind, "bind", 2, 1, 1, |
937 | (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args), | |
eefae538 | 938 | "Assign an address to the socket port @var{sock}.\n" |
b380b885 MD |
939 | "Generally this only needs to be done for server sockets,\n" |
940 | "so they know where to look for incoming connections. A socket\n" | |
941 | "without an address will be assigned one automatically when it\n" | |
942 | "starts communicating.\n\n" | |
eefae538 GH |
943 | "The format of @var{address} and @var{args} depends\n" |
944 | "on the family of the socket.\n\n" | |
b380b885 | 945 | "For a socket of family @code{AF_UNIX}, only @var{address}\n" |
eefae538 GH |
946 | "is specified and must be a string with the filename where\n" |
947 | "the socket is to be created.\n\n" | |
948 | "For a socket of family @code{AF_INET}, @var{address}\n" | |
949 | "must be an integer IPv4 address and @var{args}\n" | |
950 | "must be a single integer port number.\n\n" | |
951 | "The values of the following variables can also be used for\n" | |
952 | "@var{address}:\n\n" | |
b380b885 MD |
953 | "@defvar INADDR_ANY\n" |
954 | "Allow connections from any address.\n" | |
955 | "@end defvar\n\n" | |
956 | "@defvar INADDR_LOOPBACK\n" | |
957 | "The address of the local host using the loopback device.\n" | |
958 | "@end defvar\n\n" | |
959 | "@defvar INADDR_BROADCAST\n" | |
960 | "The broadcast address on the local network.\n" | |
961 | "@end defvar\n\n" | |
962 | "@defvar INADDR_NONE\n" | |
963 | "No address.\n" | |
964 | "@end defvar\n\n" | |
eefae538 GH |
965 | "For a socket of family @code{AF_INET6}, @var{address}\n" |
966 | "must be an integer IPv6 address and @var{args}\n" | |
967 | "may be up to three integers:\n" | |
968 | "port [flowinfo] [scope_id],\n" | |
969 | "where flowinfo and scope_id default to zero.\n\n" | |
9c0129ac KR |
970 | "Alternatively, the second argument can be a socket address object " |
971 | "as returned by @code{make-socket-address}, in which case the " | |
972 | "no additional arguments should be passed.\n\n" | |
b380b885 | 973 | "The return value is unspecified.") |
1bbd0b84 | 974 | #define FUNC_NAME s_scm_bind |
370312ae | 975 | { |
370312ae | 976 | struct sockaddr *soka; |
9c0129ac | 977 | size_t size; |
370312ae GH |
978 | int fd; |
979 | ||
78446828 | 980 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 981 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 982 | fd = SCM_FPORT_FDES (sock); |
9c0129ac | 983 | |
d223c3fc | 984 | if (scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
985 | /* No third argument was passed to FAM_OR_SOCKADDR must actually be a |
986 | `socket address' object. */ | |
987 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
988 | else | |
989 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
990 | &args, 3, FUNC_NAME, &size); | |
991 | ||
992 | ||
439006bf GH |
993 | if (bind (fd, soka, size) == -1) |
994 | { | |
995 | int save_errno = errno; | |
9c0129ac | 996 | |
439006bf GH |
997 | free (soka); |
998 | errno = save_errno; | |
1bbd0b84 | 999 | SCM_SYSERROR; |
439006bf GH |
1000 | } |
1001 | free (soka); | |
370312ae GH |
1002 | return SCM_UNSPECIFIED; |
1003 | } | |
1bbd0b84 | 1004 | #undef FUNC_NAME |
370312ae | 1005 | |
a1ec6916 | 1006 | SCM_DEFINE (scm_listen, "listen", 2, 0, 0, |
1bbd0b84 | 1007 | (SCM sock, SCM backlog), |
eefae538 | 1008 | "Enable @var{sock} to accept connection\n" |
b380b885 MD |
1009 | "requests. @var{backlog} is an integer specifying\n" |
1010 | "the maximum length of the queue for pending connections.\n" | |
eefae538 GH |
1011 | "If the queue fills, new clients will fail to connect until\n" |
1012 | "the server calls @code{accept} to accept a connection from\n" | |
1013 | "the queue.\n\n" | |
b380b885 | 1014 | "The return value is unspecified.") |
1bbd0b84 | 1015 | #define FUNC_NAME s_scm_listen |
370312ae GH |
1016 | { |
1017 | int fd; | |
78446828 | 1018 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1019 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1020 | fd = SCM_FPORT_FDES (sock); |
7cee5b31 | 1021 | if (listen (fd, scm_to_int (backlog)) == -1) |
1bbd0b84 | 1022 | SCM_SYSERROR; |
370312ae GH |
1023 | return SCM_UNSPECIFIED; |
1024 | } | |
1bbd0b84 | 1025 | #undef FUNC_NAME |
370312ae GH |
1026 | |
1027 | /* Put the components of a sockaddr into a new SCM vector. */ | |
9c0129ac | 1028 | static SCM_C_INLINE_KEYWORD SCM |
f43f3620 LC |
1029 | _scm_from_sockaddr (const scm_t_max_sockaddr *address, unsigned addr_size, |
1030 | const char *proc) | |
0f2d19dd | 1031 | { |
f43f3620 LC |
1032 | SCM result = SCM_EOL; |
1033 | short int fam = ((struct sockaddr *) address)->sa_family; | |
439006bf | 1034 | |
5a525b84 | 1035 | switch (fam) |
0f2d19dd | 1036 | { |
5a525b84 GH |
1037 | case AF_INET: |
1038 | { | |
e1368a8d | 1039 | const struct sockaddr_in *nad = (struct sockaddr_in *) address; |
439006bf | 1040 | |
1d1559ce | 1041 | result = scm_c_make_vector (3, SCM_UNSPECIFIED); |
34d19ef6 | 1042 | |
4057a3e0 MV |
1043 | SCM_SIMPLE_VECTOR_SET(result, 0, |
1044 | scm_from_short (fam)); | |
1045 | SCM_SIMPLE_VECTOR_SET(result, 1, | |
1046 | scm_from_ulong (ntohl (nad->sin_addr.s_addr))); | |
1047 | SCM_SIMPLE_VECTOR_SET(result, 2, | |
1048 | scm_from_ushort (ntohs (nad->sin_port))); | |
5a525b84 GH |
1049 | } |
1050 | break; | |
a57a0b1e | 1051 | #ifdef HAVE_IPV6 |
5a525b84 GH |
1052 | case AF_INET6: |
1053 | { | |
e1368a8d | 1054 | const struct sockaddr_in6 *nad = (struct sockaddr_in6 *) address; |
5a525b84 | 1055 | |
1d1559ce | 1056 | result = scm_c_make_vector (5, SCM_UNSPECIFIED); |
4057a3e0 MV |
1057 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
1058 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_ipv6 (nad->sin6_addr.s6_addr)); | |
1059 | SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ushort (ntohs (nad->sin6_port))); | |
1060 | SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_uint32 (nad->sin6_flowinfo)); | |
5a525b84 | 1061 | #ifdef HAVE_SIN6_SCOPE_ID |
4057a3e0 | 1062 | SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_ulong (nad->sin6_scope_id)); |
5a525b84 | 1063 | #else |
4057a3e0 | 1064 | SCM_SIMPLE_VECTOR_SET(result, 4, SCM_INUM0); |
0e958795 | 1065 | #endif |
5a525b84 GH |
1066 | } |
1067 | break; | |
1068 | #endif | |
1069 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1070 | case AF_UNIX: | |
1071 | { | |
e1368a8d | 1072 | const struct sockaddr_un *nad = (struct sockaddr_un *) address; |
439006bf | 1073 | |
1d1559ce | 1074 | result = scm_c_make_vector (2, SCM_UNSPECIFIED); |
34d19ef6 | 1075 | |
4057a3e0 | 1076 | SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_short (fam)); |
aca23b65 MV |
1077 | /* When addr_size is not enough to cover sun_path, do not try |
1078 | to access it. */ | |
1079 | if (addr_size <= offsetof (struct sockaddr_un, sun_path)) | |
4057a3e0 | 1080 | SCM_SIMPLE_VECTOR_SET(result, 1, SCM_BOOL_F); |
aca23b65 | 1081 | else |
4057a3e0 | 1082 | SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (nad->sun_path)); |
5a525b84 GH |
1083 | } |
1084 | break; | |
1085 | #endif | |
1086 | default: | |
9c0129ac KR |
1087 | result = SCM_UNSPECIFIED; |
1088 | scm_misc_error (proc, "unrecognised address family: ~A", | |
e11e83f3 | 1089 | scm_list_1 (scm_from_int (fam))); |
9c0129ac | 1090 | |
0f2d19dd | 1091 | } |
1d1559ce | 1092 | return result; |
370312ae GH |
1093 | } |
1094 | ||
9c0129ac KR |
1095 | /* The publicly-visible function. Return a Scheme object representing |
1096 | ADDRESS, an address of ADDR_SIZE bytes. */ | |
1097 | SCM | |
1098 | scm_from_sockaddr (const struct sockaddr *address, unsigned addr_size) | |
1099 | { | |
f43f3620 LC |
1100 | return (_scm_from_sockaddr ((scm_t_max_sockaddr *) address, |
1101 | addr_size, "scm_from_sockaddr")); | |
9c0129ac KR |
1102 | } |
1103 | ||
1104 | /* Convert ADDRESS, an address object returned by either | |
1105 | `scm_from_sockaddr ()' or `scm_make_socket_address ()', into its C | |
1106 | representation. On success, a non-NULL pointer is returned and | |
1107 | ADDRESS_SIZE is updated to the actual size (in bytes) of the returned | |
1108 | address. The result must eventually be freed using `free ()'. */ | |
1109 | struct sockaddr * | |
1110 | scm_to_sockaddr (SCM address, size_t *address_size) | |
1111 | #define FUNC_NAME "scm_to_sockaddr" | |
1112 | { | |
1113 | short int family; | |
1114 | struct sockaddr *c_address = NULL; | |
1115 | ||
1116 | SCM_VALIDATE_VECTOR (1, address); | |
1117 | ||
1118 | *address_size = 0; | |
1119 | family = scm_to_short (SCM_SIMPLE_VECTOR_REF (address, 0)); | |
1120 | ||
1121 | switch (family) | |
1122 | { | |
1123 | case AF_INET: | |
1124 | { | |
1125 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 3) | |
1126 | scm_misc_error (FUNC_NAME, | |
1127 | "invalid inet address representation: ~A", | |
1128 | scm_list_1 (address)); | |
1129 | else | |
1130 | { | |
1131 | struct sockaddr_in c_inet; | |
1132 | ||
333a81cc NL |
1133 | memset (&c_inet, '\0', sizeof (struct sockaddr_in)); |
1134 | ||
482d311b NL |
1135 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
1136 | c_inet.sin_len = sizeof (struct sockaddr_in); | |
1137 | #endif | |
1138 | ||
9c0129ac KR |
1139 | c_inet.sin_addr.s_addr = |
1140 | htonl (scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 1))); | |
1141 | c_inet.sin_port = | |
1142 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1143 | c_inet.sin_family = AF_INET; | |
1144 | ||
1145 | *address_size = sizeof (c_inet); | |
1146 | c_address = scm_malloc (sizeof (c_inet)); | |
1147 | memcpy (c_address, &c_inet, sizeof (c_inet)); | |
1148 | } | |
1149 | ||
1150 | break; | |
1151 | } | |
1152 | ||
1153 | #ifdef HAVE_IPV6 | |
1154 | case AF_INET6: | |
1155 | { | |
1156 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 5) | |
1157 | scm_misc_error (FUNC_NAME, "invalid inet6 address representation: ~A", | |
1158 | scm_list_1 (address)); | |
1159 | else | |
1160 | { | |
1161 | struct sockaddr_in6 c_inet6; | |
1162 | ||
1ff4da65 NJ |
1163 | scm_to_ipv6 (c_inet6.sin6_addr.s6_addr, |
1164 | SCM_SIMPLE_VECTOR_REF (address, 1)); | |
9c0129ac KR |
1165 | c_inet6.sin6_port = |
1166 | htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2))); | |
1167 | c_inet6.sin6_flowinfo = | |
1168 | scm_to_uint32 (SCM_SIMPLE_VECTOR_REF (address, 3)); | |
1169 | #ifdef HAVE_SIN6_SCOPE_ID | |
1170 | c_inet6.sin6_scope_id = | |
1171 | scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 4)); | |
1172 | #endif | |
1173 | ||
1174 | c_inet6.sin6_family = AF_INET6; | |
1175 | ||
1176 | *address_size = sizeof (c_inet6); | |
1177 | c_address = scm_malloc (sizeof (c_inet6)); | |
1178 | memcpy (c_address, &c_inet6, sizeof (c_inet6)); | |
1179 | } | |
1180 | ||
1181 | break; | |
1182 | } | |
1183 | #endif | |
1184 | ||
1185 | #ifdef HAVE_UNIX_DOMAIN_SOCKETS | |
1186 | case AF_UNIX: | |
1187 | { | |
1188 | if (SCM_SIMPLE_VECTOR_LENGTH (address) != 2) | |
1189 | scm_misc_error (FUNC_NAME, "invalid unix address representation: ~A", | |
1190 | scm_list_1 (address)); | |
1191 | else | |
1192 | { | |
1193 | SCM path; | |
1194 | size_t path_len = 0; | |
1195 | ||
1196 | path = SCM_SIMPLE_VECTOR_REF (address, 1); | |
393baa8a | 1197 | if (!scm_is_string (path) && !scm_is_false (path)) |
9c0129ac KR |
1198 | scm_misc_error (FUNC_NAME, "invalid unix address " |
1199 | "path: ~A", scm_list_1 (path)); | |
1200 | else | |
1201 | { | |
1202 | struct sockaddr_un c_unix; | |
1203 | ||
393baa8a | 1204 | if (scm_is_false (path)) |
9c0129ac KR |
1205 | path_len = 0; |
1206 | else | |
1207 | path_len = scm_c_string_length (path); | |
1208 | ||
1209 | #ifdef UNIX_PATH_MAX | |
1210 | if (path_len >= UNIX_PATH_MAX) | |
1211 | #else | |
1212 | /* We can hope that this limit will eventually vanish, at least on GNU. | |
1213 | However, currently, while glibc doesn't define `UNIX_PATH_MAX', it | |
1214 | documents it has being limited to 108 bytes. */ | |
1215 | if (path_len >= sizeof (c_unix.sun_path)) | |
1216 | #endif | |
1217 | scm_misc_error (FUNC_NAME, "unix address path " | |
1218 | "too long: ~A", scm_list_1 (path)); | |
1219 | else | |
1220 | { | |
1221 | if (path_len) | |
1222 | { | |
1223 | scm_to_locale_stringbuf (path, c_unix.sun_path, | |
1224 | #ifdef UNIX_PATH_MAX | |
1225 | UNIX_PATH_MAX); | |
1226 | #else | |
1227 | sizeof (c_unix.sun_path)); | |
1228 | #endif | |
1229 | c_unix.sun_path[path_len] = '\0'; | |
1230 | ||
1231 | /* Sanity check. */ | |
1232 | if (strlen (c_unix.sun_path) != path_len) | |
1233 | scm_misc_error (FUNC_NAME, "unix address path " | |
1234 | "contains nul characters: ~A", | |
1235 | scm_list_1 (path)); | |
1236 | } | |
1237 | else | |
1238 | c_unix.sun_path[0] = '\0'; | |
1239 | ||
1240 | c_unix.sun_family = AF_UNIX; | |
1241 | ||
1242 | *address_size = SUN_LEN (&c_unix); | |
1243 | c_address = scm_malloc (sizeof (c_unix)); | |
1244 | memcpy (c_address, &c_unix, sizeof (c_unix)); | |
1245 | } | |
1246 | } | |
1247 | } | |
1248 | ||
1249 | break; | |
1250 | } | |
1251 | #endif | |
1252 | ||
1253 | default: | |
1254 | scm_misc_error (FUNC_NAME, "unrecognised address family: ~A", | |
1255 | scm_list_1 (scm_from_ushort (family))); | |
1256 | } | |
1257 | ||
1258 | return c_address; | |
1259 | } | |
1260 | #undef FUNC_NAME | |
1261 | ||
1262 | ||
1263 | /* Return a newly-allocated `sockaddr' structure that reflects ADDRESS, being | |
1264 | an address of family FAMILY, with the family-specific parameters ARGS (see | |
1265 | the description of `connect' for details). The returned structure may be | |
1266 | freed using `free ()'. */ | |
1267 | struct sockaddr * | |
1268 | scm_c_make_socket_address (SCM family, SCM address, SCM args, | |
1269 | size_t *address_size) | |
1270 | { | |
9c0129ac KR |
1271 | struct sockaddr *soka; |
1272 | ||
1273 | soka = scm_fill_sockaddr (scm_to_ushort (family), address, &args, 1, | |
d7c6575f | 1274 | "scm_c_make_socket_address", address_size); |
9c0129ac KR |
1275 | |
1276 | return soka; | |
1277 | } | |
1278 | ||
1279 | SCM_DEFINE (scm_make_socket_address, "make-socket-address", 2, 0, 1, | |
1280 | (SCM family, SCM address, SCM args), | |
1281 | "Return a Scheme address object that reflects @var{address}, " | |
1282 | "being an address of family @var{family}, with the " | |
1283 | "family-specific parameters @var{args} (see the description of " | |
1284 | "@code{connect} for details).") | |
1285 | #define FUNC_NAME s_scm_make_socket_address | |
1286 | { | |
1ac5fb45 | 1287 | SCM result = SCM_BOOL_F; |
9c0129ac KR |
1288 | struct sockaddr *c_address; |
1289 | size_t c_address_size; | |
1290 | ||
1291 | c_address = scm_c_make_socket_address (family, address, args, | |
1292 | &c_address_size); | |
1ac5fb45 LC |
1293 | if (c_address != NULL) |
1294 | { | |
1295 | result = scm_from_sockaddr (c_address, c_address_size); | |
1296 | free (c_address); | |
1297 | } | |
9c0129ac | 1298 | |
1ac5fb45 | 1299 | return result; |
9c0129ac KR |
1300 | } |
1301 | #undef FUNC_NAME | |
1302 | ||
1303 | \f | |
a1ec6916 | 1304 | SCM_DEFINE (scm_accept, "accept", 1, 0, 0, |
1bbd0b84 | 1305 | (SCM sock), |
eefae538 GH |
1306 | "Accept a connection on a bound, listening socket.\n" |
1307 | "If there\n" | |
1308 | "are no pending connections in the queue, wait until\n" | |
1309 | "one is available unless the non-blocking option has been\n" | |
1310 | "set on the socket.\n\n" | |
b380b885 | 1311 | "The return value is a\n" |
eefae538 GH |
1312 | "pair in which the @emph{car} is a new socket port for the\n" |
1313 | "connection and\n" | |
1314 | "the @emph{cdr} is an object with address information about the\n" | |
1315 | "client which initiated the connection.\n\n" | |
1316 | "@var{sock} does not become part of the\n" | |
b380b885 | 1317 | "connection and will continue to accept new requests.") |
1bbd0b84 | 1318 | #define FUNC_NAME s_scm_accept |
0f2d19dd | 1319 | { |
e68e0369 | 1320 | int fd; |
370312ae GH |
1321 | int newfd; |
1322 | SCM address; | |
1323 | SCM newsock; | |
5ee417fc | 1324 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1325 | scm_t_max_sockaddr addr; |
370312ae | 1326 | |
78446828 | 1327 | sock = SCM_COERCE_OUTPORT (sock); |
439006bf | 1328 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1329 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1330 | newfd = accept (fd, (struct sockaddr *) &addr, &addr_size); |
439006bf GH |
1331 | if (newfd == -1) |
1332 | SCM_SYSERROR; | |
1333 | newsock = SCM_SOCK_FD_TO_PORT (newfd); | |
f43f3620 LC |
1334 | address = _scm_from_sockaddr (&addr, addr_size, |
1335 | FUNC_NAME); | |
1336 | ||
370312ae | 1337 | return scm_cons (newsock, address); |
0f2d19dd | 1338 | } |
1bbd0b84 | 1339 | #undef FUNC_NAME |
0f2d19dd | 1340 | |
a1ec6916 | 1341 | SCM_DEFINE (scm_getsockname, "getsockname", 1, 0, 0, |
1bbd0b84 | 1342 | (SCM sock), |
eefae538 | 1343 | "Return the address of @var{sock}, in the same form as the\n" |
1e6808ea MG |
1344 | "object returned by @code{accept}. On many systems the address\n" |
1345 | "of a socket in the @code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1346 | #define FUNC_NAME s_scm_getsockname |
0f2d19dd | 1347 | { |
370312ae | 1348 | int fd; |
5ee417fc | 1349 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1350 | scm_t_max_sockaddr addr; |
439006bf | 1351 | |
78446828 | 1352 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1353 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1354 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1355 | if (getsockname (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1356 | SCM_SYSERROR; |
f43f3620 LC |
1357 | |
1358 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1359 | } |
1bbd0b84 | 1360 | #undef FUNC_NAME |
0f2d19dd | 1361 | |
a1ec6916 | 1362 | SCM_DEFINE (scm_getpeername, "getpeername", 1, 0, 0, |
1bbd0b84 | 1363 | (SCM sock), |
eefae538 | 1364 | "Return the address that @var{sock}\n" |
1e6808ea MG |
1365 | "is connected to, in the same form as the object returned by\n" |
1366 | "@code{accept}. On many systems the address of a socket in the\n" | |
1367 | "@code{AF_FILE} namespace cannot be read.") | |
1bbd0b84 | 1368 | #define FUNC_NAME s_scm_getpeername |
0f2d19dd | 1369 | { |
370312ae | 1370 | int fd; |
5ee417fc | 1371 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1372 | scm_t_max_sockaddr addr; |
439006bf | 1373 | |
78446828 | 1374 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1375 | SCM_VALIDATE_OPFPORT (1, sock); |
ee149d03 | 1376 | fd = SCM_FPORT_FDES (sock); |
f43f3620 | 1377 | if (getpeername (fd, (struct sockaddr *) &addr, &addr_size) == -1) |
1bbd0b84 | 1378 | SCM_SYSERROR; |
f43f3620 LC |
1379 | |
1380 | return _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
0f2d19dd | 1381 | } |
1bbd0b84 | 1382 | #undef FUNC_NAME |
0f2d19dd | 1383 | |
a1ec6916 | 1384 | SCM_DEFINE (scm_recv, "recv!", 2, 1, 0, |
1bbd0b84 | 1385 | (SCM sock, SCM buf, SCM flags), |
eefae538 GH |
1386 | "Receive data from a socket port.\n" |
1387 | "@var{sock} must already\n" | |
b380b885 | 1388 | "be bound to the address from which data is to be received.\n" |
d21a1dc8 | 1389 | "@var{buf} is a bytevector into which\n" |
eefae538 GH |
1390 | "the data will be written. The size of @var{buf} limits\n" |
1391 | "the amount of\n" | |
b380b885 | 1392 | "data which can be received: in the case of packet\n" |
eefae538 GH |
1393 | "protocols, if a packet larger than this limit is encountered\n" |
1394 | "then some data\n" | |
b380b885 MD |
1395 | "will be irrevocably lost.\n\n" |
1396 | "The optional @var{flags} argument is a value or\n" | |
1397 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" | |
eefae538 GH |
1398 | "The value returned is the number of bytes read from the\n" |
1399 | "socket.\n\n" | |
1400 | "Note that the data is read directly from the socket file\n" | |
1401 | "descriptor:\n" | |
09831f94 | 1402 | "any unread buffered port data is ignored.") |
1bbd0b84 | 1403 | #define FUNC_NAME s_scm_recv |
0f2d19dd | 1404 | { |
d21a1dc8 | 1405 | int rv, fd, flg; |
370312ae | 1406 | |
34d19ef6 | 1407 | SCM_VALIDATE_OPFPORT (1, sock); |
d21a1dc8 | 1408 | |
7cee5b31 MV |
1409 | if (SCM_UNBNDP (flags)) |
1410 | flg = 0; | |
1411 | else | |
1412 | flg = scm_to_int (flags); | |
ee149d03 | 1413 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1414 | |
d21a1dc8 LC |
1415 | #if SCM_ENABLE_DEPRECATED == 1 |
1416 | if (SCM_UNLIKELY (scm_is_string (buf))) | |
1417 | { | |
1418 | SCM msg; | |
1419 | char *dest; | |
1420 | size_t len; | |
1421 | ||
1422 | scm_c_issue_deprecation_warning | |
1423 | ("Passing a string to `recv!' is deprecated, " | |
1424 | "use a bytevector instead."); | |
1425 | ||
1426 | len = scm_i_string_length (buf); | |
190d4b0d | 1427 | msg = scm_i_make_string (len, &dest, 0); |
d21a1dc8 LC |
1428 | SCM_SYSCALL (rv = recv (fd, dest, len, flg)); |
1429 | scm_string_copy_x (buf, scm_from_int (0), | |
1430 | msg, scm_from_int (0), scm_from_size_t (len)); | |
1431 | } | |
1432 | else | |
1433 | #endif | |
1434 | { | |
1435 | SCM_VALIDATE_BYTEVECTOR (1, buf); | |
1436 | ||
1437 | SCM_SYSCALL (rv = recv (fd, | |
1438 | SCM_BYTEVECTOR_CONTENTS (buf), | |
1439 | SCM_BYTEVECTOR_LENGTH (buf), | |
1440 | flg)); | |
1441 | } | |
cc95e00a | 1442 | |
d21a1dc8 | 1443 | if (SCM_UNLIKELY (rv == -1)) |
1bbd0b84 | 1444 | SCM_SYSERROR; |
370312ae | 1445 | |
d21a1dc8 | 1446 | scm_remember_upto_here (buf); |
7cee5b31 | 1447 | return scm_from_int (rv); |
370312ae | 1448 | } |
1bbd0b84 | 1449 | #undef FUNC_NAME |
370312ae | 1450 | |
a1ec6916 | 1451 | SCM_DEFINE (scm_send, "send", 2, 1, 0, |
1bbd0b84 | 1452 | (SCM sock, SCM message, SCM flags), |
d21a1dc8 | 1453 | "Transmit bytevector @var{message} on socket port @var{sock}.\n" |
eefae538 GH |
1454 | "@var{sock} must already be bound to a destination address. The\n" |
1455 | "value returned is the number of bytes transmitted --\n" | |
1456 | "it's possible for\n" | |
1457 | "this to be less than the length of @var{message}\n" | |
1458 | "if the socket is\n" | |
1459 | "set to be non-blocking. The optional @var{flags} argument\n" | |
1460 | "is a value or\n" | |
b380b885 | 1461 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1462 | "Note that the data is written directly to the socket\n" |
1463 | "file descriptor:\n" | |
587a3355 MG |
1464 | "any unflushed buffered port data is ignored.\n\n" |
1465 | "This operation is defined only for strings containing codepoints\n" | |
1466 | "zero to 255.") | |
1bbd0b84 | 1467 | #define FUNC_NAME s_scm_send |
370312ae | 1468 | { |
d21a1dc8 | 1469 | int rv, fd, flg; |
370312ae | 1470 | |
78446828 | 1471 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1472 | SCM_VALIDATE_OPFPORT (1, sock); |
587a3355 | 1473 | |
7cee5b31 MV |
1474 | if (SCM_UNBNDP (flags)) |
1475 | flg = 0; | |
1476 | else | |
1477 | flg = scm_to_int (flags); | |
d21a1dc8 | 1478 | |
ee149d03 | 1479 | fd = SCM_FPORT_FDES (sock); |
370312ae | 1480 | |
d21a1dc8 LC |
1481 | #if SCM_ENABLE_DEPRECATED == 1 |
1482 | if (SCM_UNLIKELY (scm_is_string (message))) | |
1483 | { | |
1484 | scm_c_issue_deprecation_warning | |
1485 | ("Passing a string to `send' is deprecated, " | |
1486 | "use a bytevector instead."); | |
1487 | ||
1488 | /* If the string is wide, see if it can be coerced into a narrow | |
1489 | string. */ | |
1490 | if (!scm_i_is_narrow_string (message) | |
1491 | || !scm_i_try_narrow_string (message)) | |
1492 | SCM_MISC_ERROR ("the message string is not 8-bit: ~s", | |
1493 | scm_list_1 (message)); | |
1494 | ||
1495 | SCM_SYSCALL (rv = send (fd, | |
1496 | scm_i_string_chars (message), | |
1497 | scm_i_string_length (message), | |
1498 | flg)); | |
1499 | } | |
1500 | else | |
1501 | #endif | |
1502 | { | |
1503 | SCM_VALIDATE_BYTEVECTOR (1, message); | |
1504 | ||
1505 | SCM_SYSCALL (rv = send (fd, | |
1506 | SCM_BYTEVECTOR_CONTENTS (message), | |
1507 | SCM_BYTEVECTOR_LENGTH (message), | |
1508 | flg)); | |
1509 | } | |
cc95e00a | 1510 | |
370312ae | 1511 | if (rv == -1) |
1bbd0b84 | 1512 | SCM_SYSERROR; |
396e5506 MV |
1513 | |
1514 | scm_remember_upto_here_1 (message); | |
7cee5b31 | 1515 | return scm_from_int (rv); |
370312ae | 1516 | } |
1bbd0b84 | 1517 | #undef FUNC_NAME |
370312ae | 1518 | |
a1ec6916 | 1519 | SCM_DEFINE (scm_recvfrom, "recvfrom!", 2, 3, 0, |
d21a1dc8 | 1520 | (SCM sock, SCM buf, SCM flags, SCM start, SCM end), |
8ab3d8a0 KR |
1521 | "Receive data from socket port @var{sock} (which must be already\n" |
1522 | "bound), returning the originating address as well as the data.\n" | |
1523 | "This is usually for use on datagram sockets, but can be used on\n" | |
1524 | "stream-oriented sockets too.\n" | |
1525 | "\n" | |
d21a1dc8 LC |
1526 | "The data received is stored in bytevector @var{buf}, using\n" |
1527 | "either the whole bytevector or just the region between the optional\n" | |
1528 | "@var{start} and @var{end} positions. The size of @var{buf}\n" | |
1529 | "limits the amount of data that can be received. For datagram\n" | |
8ab3d8a0 KR |
1530 | "protocols, if a packet larger than this is received then excess\n" |
1531 | "bytes are irrevocably lost.\n" | |
1532 | "\n" | |
1533 | "The return value is a pair. The @code{car} is the number of\n" | |
1534 | "bytes read. The @code{cdr} is a socket address object which is\n" | |
d21a1dc8 | 1535 | "where the data came from, or @code{#f} if the origin is\n" |
8ab3d8a0 KR |
1536 | "unknown.\n" |
1537 | "\n" | |
1538 | "The optional @var{flags} argument is a or bitwise OR\n" | |
1539 | "(@code{logior}) of @code{MSG_OOB}, @code{MSG_PEEK},\n" | |
1540 | "@code{MSG_DONTROUTE} etc.\n" | |
1541 | "\n" | |
1542 | "Data is read directly from the socket file descriptor, any\n" | |
1543 | "buffered port data is ignored.\n" | |
1544 | "\n" | |
1545 | "On a GNU/Linux system @code{recvfrom!} is not multi-threading,\n" | |
1546 | "all threads stop while a @code{recvfrom!} call is in progress.\n" | |
1547 | "An application may need to use @code{select}, @code{O_NONBLOCK}\n" | |
1548 | "or @code{MSG_DONTWAIT} to avoid this.") | |
1bbd0b84 | 1549 | #define FUNC_NAME s_scm_recvfrom |
370312ae | 1550 | { |
d21a1dc8 | 1551 | int rv, fd, flg; |
370312ae | 1552 | SCM address; |
d21a1dc8 | 1553 | size_t offset, cend; |
5ee417fc | 1554 | socklen_t addr_size = MAX_ADDR_SIZE; |
f43f3620 | 1555 | scm_t_max_sockaddr addr; |
370312ae | 1556 | |
34d19ef6 | 1557 | SCM_VALIDATE_OPFPORT (1, sock); |
60d02d09 | 1558 | fd = SCM_FPORT_FDES (sock); |
396e5506 | 1559 | |
1146b6cd GH |
1560 | if (SCM_UNBNDP (flags)) |
1561 | flg = 0; | |
370312ae | 1562 | else |
60d02d09 | 1563 | SCM_VALIDATE_ULONG_COPY (3, flags, flg); |
370312ae | 1564 | |
f43f3620 | 1565 | ((struct sockaddr *) &addr)->sa_family = AF_UNSPEC; |
d21a1dc8 LC |
1566 | |
1567 | #if SCM_ENABLE_DEPRECATED == 1 | |
1568 | if (SCM_UNLIKELY (scm_is_string (buf))) | |
1569 | { | |
1570 | char *cbuf; | |
1571 | ||
1572 | scm_c_issue_deprecation_warning | |
1573 | ("Passing a string to `recvfrom!' is deprecated, " | |
1574 | "use a bytevector instead."); | |
1575 | ||
1576 | scm_i_get_substring_spec (scm_i_string_length (buf), | |
1577 | start, &offset, end, &cend); | |
1578 | ||
1579 | buf = scm_i_string_start_writing (buf); | |
1580 | cbuf = scm_i_string_writable_chars (buf); | |
1581 | ||
1582 | SCM_SYSCALL (rv = recvfrom (fd, cbuf + offset, | |
1583 | cend - offset, flg, | |
1584 | (struct sockaddr *) &addr, &addr_size)); | |
1585 | scm_i_string_stop_writing (); | |
1586 | } | |
1587 | else | |
1588 | #endif | |
1589 | { | |
1590 | SCM_VALIDATE_BYTEVECTOR (1, buf); | |
1591 | ||
1592 | if (SCM_UNBNDP (start)) | |
1593 | offset = 0; | |
1594 | else | |
1595 | offset = scm_to_size_t (start); | |
1596 | ||
1597 | if (SCM_UNBNDP (end)) | |
1598 | cend = SCM_BYTEVECTOR_LENGTH (buf); | |
1599 | else | |
1600 | { | |
1601 | cend = scm_to_size_t (end); | |
1602 | if (SCM_UNLIKELY (cend >= SCM_BYTEVECTOR_LENGTH (buf) | |
1603 | || cend < offset)) | |
1604 | scm_out_of_range (FUNC_NAME, end); | |
1605 | } | |
1606 | ||
1607 | SCM_SYSCALL (rv = recvfrom (fd, | |
1608 | SCM_BYTEVECTOR_CONTENTS (buf) + offset, | |
1609 | cend - offset, flg, | |
1610 | (struct sockaddr *) &addr, &addr_size)); | |
1611 | } | |
cc95e00a | 1612 | |
370312ae | 1613 | if (rv == -1) |
1bbd0b84 | 1614 | SCM_SYSERROR; |
d21a1dc8 LC |
1615 | |
1616 | /* `recvfrom' does not necessarily return an address. Usually nothing | |
1617 | is returned for stream sockets. */ | |
f43f3620 LC |
1618 | if (((struct sockaddr *) &addr)->sa_family != AF_UNSPEC) |
1619 | address = _scm_from_sockaddr (&addr, addr_size, FUNC_NAME); | |
370312ae GH |
1620 | else |
1621 | address = SCM_BOOL_F; | |
1622 | ||
d21a1dc8 | 1623 | scm_remember_upto_here_1 (buf); |
f43f3620 | 1624 | |
e11e83f3 | 1625 | return scm_cons (scm_from_int (rv), address); |
0f2d19dd | 1626 | } |
1bbd0b84 | 1627 | #undef FUNC_NAME |
0f2d19dd | 1628 | |
9c0129ac KR |
1629 | SCM_DEFINE (scm_sendto, "sendto", 3, 1, 1, |
1630 | (SCM sock, SCM message, SCM fam_or_sockaddr, SCM address, SCM args_and_flags), | |
d21a1dc8 | 1631 | "Transmit bytevector @var{message} on socket port\n" |
eefae538 | 1632 | "@var{sock}. The\n" |
b7e64f8b | 1633 | "destination address is specified using the @var{fam_or_sockaddr},\n" |
eefae538 | 1634 | "@var{address} and\n" |
9c0129ac KR |
1635 | "@var{args_and_flags} arguments, or just a socket address object " |
1636 | "returned by @code{make-socket-address}, in a similar way to the\n" | |
eefae538 GH |
1637 | "@code{connect} procedure. @var{args_and_flags} contains\n" |
1638 | "the usual connection arguments optionally followed by\n" | |
1639 | "a flags argument, which is a value or\n" | |
b380b885 | 1640 | "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n" |
eefae538 GH |
1641 | "The value returned is the number of bytes transmitted --\n" |
1642 | "it's possible for\n" | |
1643 | "this to be less than the length of @var{message} if the\n" | |
1644 | "socket is\n" | |
1645 | "set to be non-blocking.\n" | |
1646 | "Note that the data is written directly to the socket\n" | |
1647 | "file descriptor:\n" | |
587a3355 MG |
1648 | "any unflushed buffered port data is ignored.\n" |
1649 | "This operation is defined only for strings containing codepoints\n" | |
1650 | "zero to 255.") | |
1bbd0b84 | 1651 | #define FUNC_NAME s_scm_sendto |
370312ae | 1652 | { |
d21a1dc8 | 1653 | int rv, fd, flg; |
370312ae | 1654 | struct sockaddr *soka; |
9c0129ac | 1655 | size_t size; |
370312ae | 1656 | |
78446828 | 1657 | sock = SCM_COERCE_OUTPORT (sock); |
34d19ef6 | 1658 | SCM_VALIDATE_FPORT (1, sock); |
ee149d03 | 1659 | fd = SCM_FPORT_FDES (sock); |
9c0129ac KR |
1660 | |
1661 | if (!scm_is_number (fam_or_sockaddr)) | |
1662 | { | |
1663 | /* FAM_OR_SOCKADDR must actually be a `socket address' object. This | |
1664 | means that the following arguments, i.e. ADDRESS and those listed in | |
1665 | ARGS_AND_FLAGS, are the `MSG_' flags. */ | |
1666 | soka = scm_to_sockaddr (fam_or_sockaddr, &size); | |
d223c3fc | 1667 | if (!scm_is_eq (address, SCM_UNDEFINED)) |
9c0129ac KR |
1668 | args_and_flags = scm_cons (address, args_and_flags); |
1669 | } | |
1670 | else | |
1671 | soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address, | |
1672 | &args_and_flags, 3, FUNC_NAME, &size); | |
1673 | ||
d2e53ed6 | 1674 | if (scm_is_null (args_and_flags)) |
370312ae GH |
1675 | flg = 0; |
1676 | else | |
1677 | { | |
34d19ef6 | 1678 | SCM_VALIDATE_CONS (5, args_and_flags); |
e4b265d8 | 1679 | flg = SCM_NUM2ULONG (5, SCM_CAR (args_and_flags)); |
370312ae | 1680 | } |
d21a1dc8 LC |
1681 | |
1682 | #if SCM_ENABLE_DEPRECATED == 1 | |
1683 | if (SCM_UNLIKELY (scm_is_string (message))) | |
1684 | { | |
1685 | scm_c_issue_deprecation_warning | |
1686 | ("Passing a string to `sendto' is deprecated, " | |
1687 | "use a bytevector instead."); | |
1688 | ||
1689 | /* If the string is wide, see if it can be coerced into a narrow | |
1690 | string. */ | |
1691 | if (!scm_i_is_narrow_string (message) | |
1692 | || !scm_i_try_narrow_string (message)) | |
1693 | SCM_MISC_ERROR ("the message string is not 8-bit: ~s", | |
1694 | scm_list_1 (message)); | |
1695 | ||
1696 | SCM_SYSCALL (rv = sendto (fd, | |
1697 | scm_i_string_chars (message), | |
1698 | scm_i_string_length (message), | |
1699 | flg, soka, size)); | |
1700 | } | |
1701 | else | |
1702 | #endif | |
1703 | { | |
1704 | SCM_VALIDATE_BYTEVECTOR (1, message); | |
1705 | ||
1706 | SCM_SYSCALL (rv = sendto (fd, | |
1707 | SCM_BYTEVECTOR_CONTENTS (message), | |
1708 | SCM_BYTEVECTOR_LENGTH (message), | |
1709 | flg, soka, size)); | |
1710 | } | |
1711 | ||
370312ae | 1712 | if (rv == -1) |
439006bf GH |
1713 | { |
1714 | int save_errno = errno; | |
1715 | free (soka); | |
1716 | errno = save_errno; | |
1717 | SCM_SYSERROR; | |
1718 | } | |
1719 | free (soka); | |
396e5506 MV |
1720 | |
1721 | scm_remember_upto_here_1 (message); | |
e11e83f3 | 1722 | return scm_from_int (rv); |
370312ae | 1723 | } |
1bbd0b84 | 1724 | #undef FUNC_NAME |
370312ae GH |
1725 | \f |
1726 | ||
1727 | ||
1728 | void | |
0f2d19dd | 1729 | scm_init_socket () |
0f2d19dd | 1730 | { |
370312ae GH |
1731 | /* protocol families. */ |
1732 | #ifdef AF_UNSPEC | |
e11e83f3 | 1733 | scm_c_define ("AF_UNSPEC", scm_from_int (AF_UNSPEC)); |
370312ae GH |
1734 | #endif |
1735 | #ifdef AF_UNIX | |
e11e83f3 | 1736 | scm_c_define ("AF_UNIX", scm_from_int (AF_UNIX)); |
370312ae GH |
1737 | #endif |
1738 | #ifdef AF_INET | |
e11e83f3 | 1739 | scm_c_define ("AF_INET", scm_from_int (AF_INET)); |
370312ae | 1740 | #endif |
3453619b | 1741 | #ifdef AF_INET6 |
e11e83f3 | 1742 | scm_c_define ("AF_INET6", scm_from_int (AF_INET6)); |
3453619b | 1743 | #endif |
370312ae GH |
1744 | |
1745 | #ifdef PF_UNSPEC | |
e11e83f3 | 1746 | scm_c_define ("PF_UNSPEC", scm_from_int (PF_UNSPEC)); |
370312ae GH |
1747 | #endif |
1748 | #ifdef PF_UNIX | |
e11e83f3 | 1749 | scm_c_define ("PF_UNIX", scm_from_int (PF_UNIX)); |
370312ae GH |
1750 | #endif |
1751 | #ifdef PF_INET | |
e11e83f3 | 1752 | scm_c_define ("PF_INET", scm_from_int (PF_INET)); |
370312ae | 1753 | #endif |
3453619b | 1754 | #ifdef PF_INET6 |
e11e83f3 | 1755 | scm_c_define ("PF_INET6", scm_from_int (PF_INET6)); |
3453619b | 1756 | #endif |
370312ae | 1757 | |
66c73b76 GH |
1758 | /* standard addresses. */ |
1759 | #ifdef INADDR_ANY | |
b9bd8526 | 1760 | scm_c_define ("INADDR_ANY", scm_from_ulong (INADDR_ANY)); |
66c73b76 GH |
1761 | #endif |
1762 | #ifdef INADDR_BROADCAST | |
b9bd8526 | 1763 | scm_c_define ("INADDR_BROADCAST", scm_from_ulong (INADDR_BROADCAST)); |
66c73b76 GH |
1764 | #endif |
1765 | #ifdef INADDR_NONE | |
b9bd8526 | 1766 | scm_c_define ("INADDR_NONE", scm_from_ulong (INADDR_NONE)); |
66c73b76 GH |
1767 | #endif |
1768 | #ifdef INADDR_LOOPBACK | |
b9bd8526 | 1769 | scm_c_define ("INADDR_LOOPBACK", scm_from_ulong (INADDR_LOOPBACK)); |
66c73b76 GH |
1770 | #endif |
1771 | ||
6f637a1b KR |
1772 | /* socket types. |
1773 | ||
1774 | SOCK_PACKET is deliberately omitted, the GNU/Linux socket(2) and | |
1775 | packet(7) advise that it's obsolete and strongly deprecated. */ | |
1776 | ||
370312ae | 1777 | #ifdef SOCK_STREAM |
e11e83f3 | 1778 | scm_c_define ("SOCK_STREAM", scm_from_int (SOCK_STREAM)); |
370312ae GH |
1779 | #endif |
1780 | #ifdef SOCK_DGRAM | |
e11e83f3 | 1781 | scm_c_define ("SOCK_DGRAM", scm_from_int (SOCK_DGRAM)); |
370312ae | 1782 | #endif |
6f637a1b KR |
1783 | #ifdef SOCK_SEQPACKET |
1784 | scm_c_define ("SOCK_SEQPACKET", scm_from_int (SOCK_SEQPACKET)); | |
1785 | #endif | |
370312ae | 1786 | #ifdef SOCK_RAW |
e11e83f3 | 1787 | scm_c_define ("SOCK_RAW", scm_from_int (SOCK_RAW)); |
370312ae | 1788 | #endif |
6f637a1b KR |
1789 | #ifdef SOCK_RDM |
1790 | scm_c_define ("SOCK_RDM", scm_from_int (SOCK_RDM)); | |
1791 | #endif | |
370312ae | 1792 | |
8fae2bf4 KR |
1793 | /* setsockopt level. |
1794 | ||
1795 | SOL_IP, SOL_TCP and SOL_UDP are defined on gnu/linux, but not on for | |
1796 | instance NetBSD. We define IPPROTOs because that's what the posix spec | |
1797 | shows in its example at | |
1798 | ||
1799 | http://www.opengroup.org/onlinepubs/007904975/functions/getsockopt.html | |
1800 | */ | |
370312ae | 1801 | #ifdef SOL_SOCKET |
e11e83f3 | 1802 | scm_c_define ("SOL_SOCKET", scm_from_int (SOL_SOCKET)); |
370312ae | 1803 | #endif |
8fae2bf4 KR |
1804 | #ifdef IPPROTO_IP |
1805 | scm_c_define ("IPPROTO_IP", scm_from_int (IPPROTO_IP)); | |
370312ae | 1806 | #endif |
8fae2bf4 KR |
1807 | #ifdef IPPROTO_TCP |
1808 | scm_c_define ("IPPROTO_TCP", scm_from_int (IPPROTO_TCP)); | |
370312ae | 1809 | #endif |
8fae2bf4 KR |
1810 | #ifdef IPPROTO_UDP |
1811 | scm_c_define ("IPPROTO_UDP", scm_from_int (IPPROTO_UDP)); | |
370312ae GH |
1812 | #endif |
1813 | ||
1814 | /* setsockopt names. */ | |
1815 | #ifdef SO_DEBUG | |
e11e83f3 | 1816 | scm_c_define ("SO_DEBUG", scm_from_int (SO_DEBUG)); |
370312ae GH |
1817 | #endif |
1818 | #ifdef SO_REUSEADDR | |
e11e83f3 | 1819 | scm_c_define ("SO_REUSEADDR", scm_from_int (SO_REUSEADDR)); |
370312ae GH |
1820 | #endif |
1821 | #ifdef SO_STYLE | |
e11e83f3 | 1822 | scm_c_define ("SO_STYLE", scm_from_int (SO_STYLE)); |
370312ae GH |
1823 | #endif |
1824 | #ifdef SO_TYPE | |
e11e83f3 | 1825 | scm_c_define ("SO_TYPE", scm_from_int (SO_TYPE)); |
370312ae GH |
1826 | #endif |
1827 | #ifdef SO_ERROR | |
e11e83f3 | 1828 | scm_c_define ("SO_ERROR", scm_from_int (SO_ERROR)); |
370312ae GH |
1829 | #endif |
1830 | #ifdef SO_DONTROUTE | |
e11e83f3 | 1831 | scm_c_define ("SO_DONTROUTE", scm_from_int (SO_DONTROUTE)); |
370312ae GH |
1832 | #endif |
1833 | #ifdef SO_BROADCAST | |
e11e83f3 | 1834 | scm_c_define ("SO_BROADCAST", scm_from_int (SO_BROADCAST)); |
370312ae GH |
1835 | #endif |
1836 | #ifdef SO_SNDBUF | |
e11e83f3 | 1837 | scm_c_define ("SO_SNDBUF", scm_from_int (SO_SNDBUF)); |
370312ae GH |
1838 | #endif |
1839 | #ifdef SO_RCVBUF | |
e11e83f3 | 1840 | scm_c_define ("SO_RCVBUF", scm_from_int (SO_RCVBUF)); |
370312ae GH |
1841 | #endif |
1842 | #ifdef SO_KEEPALIVE | |
e11e83f3 | 1843 | scm_c_define ("SO_KEEPALIVE", scm_from_int (SO_KEEPALIVE)); |
370312ae GH |
1844 | #endif |
1845 | #ifdef SO_OOBINLINE | |
e11e83f3 | 1846 | scm_c_define ("SO_OOBINLINE", scm_from_int (SO_OOBINLINE)); |
370312ae GH |
1847 | #endif |
1848 | #ifdef SO_NO_CHECK | |
e11e83f3 | 1849 | scm_c_define ("SO_NO_CHECK", scm_from_int (SO_NO_CHECK)); |
370312ae GH |
1850 | #endif |
1851 | #ifdef SO_PRIORITY | |
e11e83f3 | 1852 | scm_c_define ("SO_PRIORITY", scm_from_int (SO_PRIORITY)); |
370312ae GH |
1853 | #endif |
1854 | #ifdef SO_LINGER | |
e11e83f3 | 1855 | scm_c_define ("SO_LINGER", scm_from_int (SO_LINGER)); |
370312ae GH |
1856 | #endif |
1857 | ||
1858 | /* recv/send options. */ | |
8ab3d8a0 KR |
1859 | #ifdef MSG_DONTWAIT |
1860 | scm_c_define ("MSG_DONTWAIT", scm_from_int (MSG_DONTWAIT)); | |
1861 | #endif | |
370312ae | 1862 | #ifdef MSG_OOB |
e11e83f3 | 1863 | scm_c_define ("MSG_OOB", scm_from_int (MSG_OOB)); |
370312ae GH |
1864 | #endif |
1865 | #ifdef MSG_PEEK | |
e11e83f3 | 1866 | scm_c_define ("MSG_PEEK", scm_from_int (MSG_PEEK)); |
370312ae GH |
1867 | #endif |
1868 | #ifdef MSG_DONTROUTE | |
e11e83f3 | 1869 | scm_c_define ("MSG_DONTROUTE", scm_from_int (MSG_DONTROUTE)); |
370312ae GH |
1870 | #endif |
1871 | ||
1c80707c MV |
1872 | #ifdef IP_ADD_MEMBERSHIP |
1873 | scm_c_define ("IP_ADD_MEMBERSHIP", scm_from_int (IP_ADD_MEMBERSHIP)); | |
1874 | scm_c_define ("IP_DROP_MEMBERSHIP", scm_from_int (IP_DROP_MEMBERSHIP)); | |
1875 | #endif | |
1876 | ||
511246a1 TCM |
1877 | #ifdef IP_MULTICAST_TTL |
1878 | scm_c_define ("IP_MULTICAST_TTL", scm_from_int ( IP_MULTICAST_TTL)); | |
1879 | #endif | |
1880 | ||
1881 | #ifdef IP_MULTICAST_IF | |
1882 | scm_c_define ("IP_MULTICAST_IF", scm_from_int ( IP_MULTICAST_IF)); | |
1883 | #endif | |
1884 | ||
0f2d19dd | 1885 | scm_add_feature ("socket"); |
370312ae | 1886 | |
a0599745 | 1887 | #include "libguile/socket.x" |
0f2d19dd JB |
1888 | } |
1889 | ||
89e00824 ML |
1890 | |
1891 | /* | |
1892 | Local Variables: | |
1893 | c-file-style: "gnu" | |
1894 | End: | |
1895 | */ |