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b4e15479 SJ |
1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
2 | * | |
73be1d9e MV |
3 | * This library is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
b4e15479 | 7 | * |
73be1d9e MV |
8 | * This library is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * Lesser General Public License for more details. | |
b4e15479 | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
92205699 | 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
73be1d9e | 16 | */ |
b4e15479 SJ |
17 | |
18 | ||
19 | \f | |
20 | ||
72bcac39 RB |
21 | #if HAVE_CONFIG_H |
22 | # include <config.h> | |
23 | #endif | |
24 | ||
b4e15479 SJ |
25 | #include "libguile/__scm.h" |
26 | #include "libguile/modules.h" | |
27 | #include "libguile/numbers.h" | |
28 | ||
6063dc1d SJ |
29 | #include <stdio.h> |
30 | #include <stdlib.h> | |
31 | #include <string.h> | |
32 | #include <ctype.h> | |
b4e15479 | 33 | #include <errno.h> |
6063dc1d SJ |
34 | #include <limits.h> |
35 | ||
36 | #ifndef PATH_MAX | |
37 | #define PATH_MAX 255 | |
38 | #endif | |
b4e15479 SJ |
39 | |
40 | #include "win32-socket.h" | |
41 | ||
42 | /* Winsock API error description structure. The error description is | |
43 | necessary because there is no error list available. */ | |
44 | typedef struct | |
45 | { | |
46 | int error; /* Error code. */ | |
47 | char *str; /* Error description. */ | |
48 | int replace; /* Possible error code replacement. */ | |
49 | char *replace_str; /* Replacement symbol. */ | |
50 | char *correct_str; /* Original symbol. */ | |
51 | } | |
52 | socket_error_t; | |
53 | ||
6063dc1d SJ |
54 | #define FILE_ETC_SERVICES "services" |
55 | #define ENVIRON_ETC_SERVICES "SERVICES" | |
56 | #define FILE_ETC_NETWORKS "networks" | |
57 | #define ENVIRON_ETC_NETWORKS "NETWORKS" | |
58 | #define FILE_ETC_PROTOCOLS "protocol" | |
59 | #define ENVIRON_ETC_PROTOCOLS "PROTOCOLS" | |
60 | #define MAX_NAMLEN 256 | |
61 | #define MAX_ALIASES 4 | |
62 | ||
63 | /* Internal structure for a thread's M$-Windows servent interface. */ | |
64 | typedef struct | |
65 | { | |
66 | FILE *fd; /* Current file. */ | |
67 | char file[PATH_MAX]; /* File name. */ | |
68 | struct servent ent; /* Return value. */ | |
69 | char name[MAX_NAMLEN]; /* Service name. */ | |
70 | char proto[MAX_NAMLEN]; /* Protocol name. */ | |
71 | char alias[MAX_ALIASES][MAX_NAMLEN]; /* All aliases. */ | |
72 | char *aliases[MAX_ALIASES]; /* Alias pointers. */ | |
73 | int port; /* Network port. */ | |
74 | } | |
75 | scm_i_servent_t; | |
76 | ||
77 | static scm_i_servent_t scm_i_servent; | |
78 | ||
79 | /* Internal structure for a thread's M$-Windows protoent interface. */ | |
80 | typedef struct | |
81 | { | |
82 | FILE *fd; /* Current file. */ | |
83 | char file[PATH_MAX]; /* File name. */ | |
84 | struct protoent ent; /* Return value. */ | |
85 | char name[MAX_NAMLEN]; /* Protocol name. */ | |
86 | char alias[MAX_ALIASES][MAX_NAMLEN]; /* All aliases. */ | |
87 | char *aliases[MAX_ALIASES]; /* Alias pointers. */ | |
88 | int proto; /* Protocol number. */ | |
89 | } | |
90 | scm_i_protoent_t; | |
91 | ||
92 | static scm_i_protoent_t scm_i_protoent; | |
93 | ||
b4e15479 SJ |
94 | /* Define replacement symbols for most of the WSA* error codes. */ |
95 | #ifndef EWOULDBLOCK | |
96 | # define EWOULDBLOCK WSAEWOULDBLOCK | |
97 | #endif | |
98 | #ifndef EINPROGRESS | |
99 | # define EINPROGRESS WSAEINPROGRESS | |
100 | #endif | |
101 | #ifndef EALREADY | |
102 | # define EALREADY WSAEALREADY | |
103 | #endif | |
104 | #ifndef EDESTADDRREQ | |
105 | # define EDESTADDRREQ WSAEDESTADDRREQ | |
106 | #endif | |
107 | #ifndef EMSGSIZE | |
108 | # define EMSGSIZE WSAEMSGSIZE | |
109 | #endif | |
110 | #ifndef EPROTOTYPE | |
111 | # define EPROTOTYPE WSAEPROTOTYPE | |
112 | #endif | |
113 | #ifndef ENOTSOCK | |
114 | # define ENOTSOCK WSAENOTSOCK | |
115 | #endif | |
116 | #ifndef ENOPROTOOPT | |
117 | # define ENOPROTOOPT WSAENOPROTOOPT | |
118 | #endif | |
119 | #ifndef EPROTONOSUPPORT | |
120 | # define EPROTONOSUPPORT WSAEPROTONOSUPPORT | |
121 | #endif | |
122 | #ifndef ESOCKTNOSUPPORT | |
123 | # define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT | |
124 | #endif | |
125 | #ifndef EOPNOTSUPP | |
126 | # define EOPNOTSUPP WSAEOPNOTSUPP | |
127 | #endif | |
128 | #ifndef EPFNOSUPPORT | |
129 | # define EPFNOSUPPORT WSAEPFNOSUPPORT | |
130 | #endif | |
131 | #ifndef EAFNOSUPPORT | |
132 | # define EAFNOSUPPORT WSAEAFNOSUPPORT | |
133 | #endif | |
134 | #ifndef EADDRINUSE | |
135 | # define EADDRINUSE WSAEADDRINUSE | |
136 | #endif | |
137 | #ifndef EADDRNOTAVAIL | |
138 | # define EADDRNOTAVAIL WSAEADDRNOTAVAIL | |
139 | #endif | |
140 | #ifndef ENETDOWN | |
141 | # define ENETDOWN WSAENETDOWN | |
142 | #endif | |
143 | #ifndef ENETUNREACH | |
144 | # define ENETUNREACH WSAENETUNREACH | |
145 | #endif | |
146 | #ifndef ENETRESET | |
147 | # define ENETRESET WSAENETRESET | |
148 | #endif | |
149 | #ifndef ECONNABORTED | |
150 | # define ECONNABORTED WSAECONNABORTED | |
151 | #endif | |
152 | #ifndef ECONNRESET | |
153 | # define ECONNRESET WSAECONNRESET | |
154 | #endif | |
155 | #ifndef ENOBUFS | |
156 | # define ENOBUFS WSAENOBUFS | |
157 | #endif | |
158 | #ifndef EISCONN | |
159 | # define EISCONN WSAEISCONN | |
160 | #endif | |
161 | #ifndef ENOTCONN | |
162 | # define ENOTCONN WSAENOTCONN | |
163 | #endif | |
164 | #ifndef ESHUTDOWN | |
165 | # define ESHUTDOWN WSAESHUTDOWN | |
166 | #endif | |
167 | #ifndef ETOOMANYREFS | |
168 | # define ETOOMANYREFS WSAETOOMANYREFS | |
169 | #endif | |
170 | #ifndef ETIMEDOUT | |
171 | # define ETIMEDOUT WSAETIMEDOUT | |
172 | #endif | |
173 | #ifndef ECONNREFUSED | |
174 | # define ECONNREFUSED WSAECONNREFUSED | |
175 | #endif | |
176 | #ifndef ELOOP | |
177 | # define ELOOP WSAELOOP | |
178 | #endif | |
179 | #ifndef EHOSTDOWN | |
180 | # define EHOSTDOWN WSAEHOSTDOWN | |
181 | #endif | |
182 | #ifndef EHOSTUNREACH | |
183 | # define EHOSTUNREACH WSAEHOSTUNREACH | |
184 | #endif | |
185 | #ifndef EPROCLIM | |
186 | # define EPROCLIM WSAEPROCLIM | |
187 | #endif | |
188 | #ifndef EUSERS | |
189 | # define EUSERS WSAEUSERS | |
190 | #endif | |
191 | #ifndef EDQUOT | |
192 | # define EDQUOT WSAEDQUOT | |
193 | #endif | |
194 | #ifndef ESTALE | |
195 | # define ESTALE WSAESTALE | |
196 | #endif | |
197 | #ifndef EREMOTE | |
198 | # define EREMOTE WSAEREMOTE | |
199 | #endif | |
200 | ||
201 | /* List of error structures. */ | |
202 | static socket_error_t socket_errno [] = { | |
203 | /* 000 */ { 0, NULL, 0, NULL, NULL }, | |
204 | /* 001 */ { 0, NULL, 0, NULL, NULL }, | |
205 | /* 002 */ { 0, NULL, 0, NULL, NULL }, | |
206 | /* 003 */ { 0, NULL, 0, NULL, NULL }, | |
207 | /* 004 */ { WSAEINTR, "Interrupted function call", EINTR, NULL, "WSAEINTR" }, | |
208 | /* 005 */ { 0, NULL, 0, NULL, NULL }, | |
209 | /* 006 */ { 0, NULL, 0, NULL, NULL }, | |
210 | /* 007 */ { 0, NULL, 0, NULL, NULL }, | |
211 | /* 008 */ { 0, NULL, 0, NULL, NULL }, | |
212 | /* 009 */ { WSAEBADF, "Bad file number", EBADF, NULL, "WSAEBADF" }, | |
213 | /* 010 */ { 0, NULL, 0, NULL, NULL }, | |
214 | /* 011 */ { 0, NULL, 0, NULL, NULL }, | |
215 | /* 012 */ { 0, NULL, 0, NULL, NULL }, | |
216 | /* 013 */ { WSAEACCES, "Permission denied", EACCES, NULL, "WSAEACCES" }, | |
217 | /* 014 */ { WSAEFAULT, "Bad address", EFAULT, NULL, "WSAEFAULT" }, | |
218 | /* 015 */ { 0, NULL, 0, NULL, NULL }, | |
219 | /* 016 */ { 0, NULL, 0, NULL, NULL }, | |
220 | /* 017 */ { 0, NULL, 0, NULL, NULL }, | |
221 | /* 018 */ { 0, NULL, 0, NULL, NULL }, | |
222 | /* 019 */ { 0, NULL, 0, NULL, NULL }, | |
223 | /* 020 */ { 0, NULL, 0, NULL, NULL }, | |
224 | /* 021 */ { 0, NULL, 0, NULL, NULL }, | |
225 | /* 022 */ { WSAEINVAL, "Invalid argument", EINVAL, NULL, "WSAEINVAL" }, | |
226 | /* 023 */ { 0, NULL, 0, NULL, NULL }, | |
227 | /* 024 */ { WSAEMFILE, "Too many open files", EMFILE, NULL, "WSAEMFILE" }, | |
228 | /* 025 */ { 0, NULL, 0, NULL, NULL }, | |
229 | /* 026 */ { 0, NULL, 0, NULL, NULL }, | |
230 | /* 027 */ { 0, NULL, 0, NULL, NULL }, | |
231 | /* 028 */ { 0, NULL, 0, NULL, NULL }, | |
232 | /* 029 */ { 0, NULL, 0, NULL, NULL }, | |
233 | /* 030 */ { 0, NULL, 0, NULL, NULL }, | |
234 | /* 031 */ { 0, NULL, 0, NULL, NULL }, | |
235 | /* 032 */ { 0, NULL, 0, NULL, NULL }, | |
236 | /* 033 */ { 0, NULL, 0, NULL, NULL }, | |
237 | /* 034 */ { 0, NULL, 0, NULL, NULL }, | |
238 | /* 035 */ { WSAEWOULDBLOCK, "Resource temporarily unavailable", | |
239 | EWOULDBLOCK, "EWOULDBLOCK", "WSAEWOULDBLOCK" }, | |
240 | /* 036 */ { WSAEINPROGRESS, "Operation now in progress", | |
241 | EINPROGRESS, "EINPROGRESS", "WSAEINPROGRESS" }, | |
242 | /* 037 */ { WSAEALREADY, "Operation already in progress", | |
243 | EALREADY, "EALREADY", "WSAEALREADY" }, | |
244 | /* 038 */ { WSAENOTSOCK, "Socket operation on non-socket", | |
245 | ENOTSOCK, "ENOTSOCK", "WSAENOTSOCK"}, | |
246 | /* 039 */ { WSAEDESTADDRREQ, "Destination address required", | |
247 | EDESTADDRREQ, "EDESTADDRREQ", "WSAEDESTADDRREQ" }, | |
248 | /* 040 */ { WSAEMSGSIZE, "Message too long", | |
249 | EMSGSIZE, "EMSGSIZE", "WSAEMSGSIZE" }, | |
250 | /* 041 */ { WSAEPROTOTYPE, "Protocol wrong type for socket", | |
251 | EPROTOTYPE, "EPROTOTYPE", "WSAEPROTOTYPE" }, | |
252 | /* 042 */ { WSAENOPROTOOPT, "Bad protocol option", | |
253 | ENOPROTOOPT, "ENOPROTOOPT", "WSAENOPROTOOPT" }, | |
254 | /* 043 */ { WSAEPROTONOSUPPORT, "Protocol not supported", | |
255 | EPROTONOSUPPORT, "EPROTONOSUPPORT", "WSAEPROTONOSUPPORT" }, | |
256 | /* 044 */ { WSAESOCKTNOSUPPORT, "Socket type not supported", | |
257 | ESOCKTNOSUPPORT, "ESOCKTNOSUPPORT", "WSAESOCKTNOSUPPORT" }, | |
258 | /* 045 */ { WSAEOPNOTSUPP, "Operation not supported", | |
259 | EOPNOTSUPP, "EOPNOTSUPP", "WSAEOPNOTSUPP" }, | |
260 | /* 046 */ { WSAEPFNOSUPPORT, "Protocol family not supported", | |
261 | EPFNOSUPPORT, "EPFNOSUPPORT", "WSAEPFNOSUPPORT" }, | |
262 | /* 047 */ { WSAEAFNOSUPPORT, | |
263 | "Address family not supported by protocol family", | |
264 | EAFNOSUPPORT, "EAFNOSUPPORT", "WSAEAFNOSUPPORT" }, | |
265 | /* 048 */ { WSAEADDRINUSE, "Address already in use", | |
266 | EADDRINUSE, "EADDRINUSE", "WSAEADDRINUSE" }, | |
267 | /* 049 */ { WSAEADDRNOTAVAIL, "Cannot assign requested address", | |
268 | EADDRNOTAVAIL, "EADDRNOTAVAIL", "WSAEADDRNOTAVAIL" }, | |
269 | /* 050 */ { WSAENETDOWN, "Network is down", | |
270 | ENETDOWN, "ENETDOWN", "WSAENETDOWN" }, | |
271 | /* 051 */ { WSAENETUNREACH, "Network is unreachable", | |
272 | ENETUNREACH, "ENETUNREACH", "WSAENETUNREACH" }, | |
273 | /* 052 */ { WSAENETRESET, "Network dropped connection on reset", | |
274 | ENETRESET, "ENETRESET", "WSAENETRESET" }, | |
275 | /* 053 */ { WSAECONNABORTED, "Software caused connection abort", | |
276 | ECONNABORTED, "ECONNABORTED", "WSAECONNABORTED" }, | |
277 | /* 054 */ { WSAECONNRESET, "Connection reset by peer", | |
278 | ECONNRESET, "ECONNRESET", "WSAECONNRESET" }, | |
279 | /* 055 */ { WSAENOBUFS, "No buffer space available", | |
280 | ENOBUFS, "ENOBUFS", "WSAENOBUFS" }, | |
281 | /* 056 */ { WSAEISCONN, "Socket is already connected", | |
282 | EISCONN, "EISCONN", "WSAEISCONN" }, | |
283 | /* 057 */ { WSAENOTCONN, "Socket is not connected", | |
284 | ENOTCONN, "ENOTCONN", "WSAENOTCONN" }, | |
285 | /* 058 */ { WSAESHUTDOWN, "Cannot send after socket shutdown", | |
286 | ESHUTDOWN, "ESHUTDOWN", "WSAESHUTDOWN" }, | |
287 | /* 059 */ { WSAETOOMANYREFS, "Too many references; can't splice", | |
288 | ETOOMANYREFS, "ETOOMANYREFS", "WSAETOOMANYREFS" }, | |
289 | /* 060 */ { WSAETIMEDOUT, "Connection timed out", | |
290 | ETIMEDOUT, "ETIMEDOUT", "WSAETIMEDOUT" }, | |
291 | /* 061 */ { WSAECONNREFUSED, "Connection refused", | |
292 | ECONNREFUSED, "ECONNREFUSED", "WSAECONNREFUSED" }, | |
293 | /* 062 */ { WSAELOOP, "Too many levels of symbolic links", | |
294 | ELOOP, "ELOOP", "WSAELOOP" }, | |
295 | /* 063 */ { WSAENAMETOOLONG, "File name too long", | |
296 | ENAMETOOLONG, NULL, "WSAENAMETOOLONG" }, | |
297 | /* 064 */ { WSAEHOSTDOWN, "Host is down", | |
298 | EHOSTDOWN, "EHOSTDOWN", "WSAEHOSTDOWN" }, | |
299 | /* 065 */ { WSAEHOSTUNREACH, "No route to host", | |
300 | EHOSTUNREACH, "EHOSTUNREACH", "WSAEHOSTUNREACH" }, | |
301 | /* 066 */ { WSAENOTEMPTY, "Directory not empty", | |
302 | ENOTEMPTY, NULL, "WSAENOTEMPTY" }, | |
303 | /* 067 */ { WSAEPROCLIM, "Too many processes", | |
304 | EPROCLIM, "EPROCLIM", "WSAEPROCLIM" }, | |
305 | /* 068 */ { WSAEUSERS, "Too many users", | |
306 | EUSERS, "EUSERS", "WSAEUSERS" }, | |
307 | /* 069 */ { WSAEDQUOT, "Disc quota exceeded", | |
308 | EDQUOT, "EDQUOT", "WSAEDQUOT" }, | |
309 | /* 070 */ { WSAESTALE, "Stale NFS file handle", | |
310 | ESTALE, "ESTALE", "WSAESTALE" }, | |
311 | /* 071 */ { WSAEREMOTE, "Too many levels of remote in path", | |
312 | EREMOTE, "EREMOTE", "WSAEREMOTE" }, | |
313 | /* 072 */ { 0, NULL, 0, NULL, NULL }, | |
314 | /* 073 */ { 0, NULL, 0, NULL, NULL }, | |
315 | /* 074 */ { 0, NULL, 0, NULL, NULL }, | |
316 | /* 075 */ { 0, NULL, 0, NULL, NULL }, | |
317 | /* 076 */ { 0, NULL, 0, NULL, NULL }, | |
318 | /* 077 */ { 0, NULL, 0, NULL, NULL }, | |
319 | /* 078 */ { 0, NULL, 0, NULL, NULL }, | |
320 | /* 079 */ { 0, NULL, 0, NULL, NULL }, | |
321 | /* 080 */ { 0, NULL, 0, NULL, NULL }, | |
322 | /* 081 */ { 0, NULL, 0, NULL, NULL }, | |
323 | /* 082 */ { 0, NULL, 0, NULL, NULL }, | |
324 | /* 083 */ { 0, NULL, 0, NULL, NULL }, | |
325 | /* 084 */ { 0, NULL, 0, NULL, NULL }, | |
326 | /* 085 */ { 0, NULL, 0, NULL, NULL }, | |
327 | /* 086 */ { 0, NULL, 0, NULL, NULL }, | |
328 | /* 087 */ { 0, NULL, 0, NULL, NULL }, | |
329 | /* 088 */ { 0, NULL, 0, NULL, NULL }, | |
330 | /* 089 */ { 0, NULL, 0, NULL, NULL }, | |
331 | /* 090 */ { 0, NULL, 0, NULL, NULL }, | |
332 | /* 091 */ { WSASYSNOTREADY, "Network subsystem is unavailable", | |
333 | 0, NULL, "WSASYSNOTREADY" }, | |
334 | /* 092 */ { WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range", | |
335 | 0, NULL, "WSAVERNOTSUPPORTED" }, | |
336 | /* 093 */ { WSANOTINITIALISED, "Successful WSAStartup not yet performed", | |
337 | 0, NULL, "WSANOTINITIALISED" }, | |
338 | /* 094 */ { 0, NULL, 0, NULL, NULL }, | |
339 | /* 095 */ { 0, NULL, 0, NULL, NULL }, | |
340 | /* 096 */ { 0, NULL, 0, NULL, NULL }, | |
341 | /* 097 */ { 0, NULL, 0, NULL, NULL }, | |
342 | /* 098 */ { 0, NULL, 0, NULL, NULL }, | |
343 | /* 099 */ { 0, NULL, 0, NULL, NULL }, | |
344 | /* 100 */ { 0, NULL, 0, NULL, NULL }, | |
345 | /* 101 */ { WSAEDISCON, "Graceful shutdown in progress", | |
346 | 0, NULL, "WSAEDISCON" }, | |
347 | /* 102 */ { WSAENOMORE, "No more services", | |
348 | 0, NULL, "WSAENOMORE" }, | |
349 | /* 103 */ { WSAECANCELLED, "Service lookup cancelled", | |
350 | 0, NULL, "WSAECANCELLED" }, | |
351 | /* 104 */ { WSAEINVALIDPROCTABLE, "Invalid procedure call table", | |
352 | 0, NULL, "WSAEINVALIDPROCTABLE" }, | |
353 | /* 105 */ { WSAEINVALIDPROVIDER, "Invalid service provider", | |
354 | 0, NULL, "WSAEINVALIDPROVIDER" }, | |
355 | /* 106 */ { WSAEPROVIDERFAILEDINIT, "Service provider failure", | |
356 | 0, NULL, "WSAEPROVIDERFAILEDINIT" }, | |
357 | /* 107 */ { WSASYSCALLFAILURE, "System call failed", | |
358 | 0, NULL, "WSASYSCALLFAILURE" }, | |
359 | /* 108 */ { WSASERVICE_NOT_FOUND, "No such service", | |
360 | 0, NULL, "WSASERVICE_NOT_FOUND" }, | |
361 | /* 109 */ { WSATYPE_NOT_FOUND, "Class not found", | |
362 | 0, NULL, "WSATYPE_NOT_FOUND" }, | |
363 | /* 110 */ { WSA_E_NO_MORE, "No more services", | |
364 | 0, NULL, "WSA_E_NO_MORE" }, | |
365 | /* 111 */ { WSA_E_CANCELLED, "Service lookup cancelled", | |
366 | 0, NULL, "WSA_E_CANCELLED" }, | |
367 | /* 112 */ { WSAEREFUSED, "Database query refused", | |
368 | 0, NULL, "WSAEREFUSED" }, | |
369 | /* end */ { -1, NULL, -1, NULL, NULL } | |
370 | }; | |
371 | ||
372 | /* Extended list of error structures. */ | |
373 | static socket_error_t socket_h_errno [] = { | |
374 | /* 000 */ { 0, NULL, 0, NULL, NULL }, | |
375 | /* 001 */ { WSAHOST_NOT_FOUND, "Host not found", | |
376 | HOST_NOT_FOUND, "HOST_NOT_FOUND", "WSAHOST_NOT_FOUND" }, | |
377 | /* 002 */ { WSATRY_AGAIN, "Non-authoritative host not found", | |
378 | TRY_AGAIN, "TRY_AGAIN", "WSATRY_AGAIN" }, | |
379 | /* 003 */ { WSANO_RECOVERY, "This is a non-recoverable error", | |
380 | NO_RECOVERY, "NO_RECOVERY", "WSANO_RECOVERY" }, | |
381 | /* 004 */ { WSANO_DATA, "Valid name, no data record of requested type", | |
382 | NO_DATA, "NO_DATA", "WSANO_DATA" }, | |
383 | /* 005 */ { WSANO_ADDRESS, "No address, look for MX record", | |
384 | NO_ADDRESS, "NO_ADDRESS", "WSANO_ADDRESS" }, | |
385 | /* end */ { -1, NULL, -1, NULL, NULL } | |
386 | }; | |
387 | ||
388 | /* Returns the result of @code{WSAGetLastError()}. */ | |
389 | int | |
390 | scm_i_socket_errno (void) | |
391 | { | |
392 | return WSAGetLastError (); | |
393 | } | |
394 | ||
395 | /* Returns a valid error message for Winsock-API error codes obtained via | |
396 | @code{WSAGetLastError()} or NULL otherwise. */ | |
397 | char * | |
398 | scm_i_socket_strerror (int error) | |
399 | { | |
400 | if (error >= WSABASEERR && error <= (WSABASEERR + 112)) | |
401 | return socket_errno[error - WSABASEERR].str; | |
402 | else if (error >= (WSABASEERR + 1000) && error <= (WSABASEERR + 1005)) | |
403 | return socket_h_errno[error - (WSABASEERR + 1000)].str; | |
404 | return NULL; | |
405 | } | |
406 | ||
6063dc1d SJ |
407 | /* Constructs a valid filename for the given file @var{file} in the M$-Windows |
408 | directory. This is usually the default location for the network files. */ | |
409 | char * | |
410 | scm_i_socket_filename (char *file) | |
411 | { | |
412 | static char dir[PATH_MAX]; | |
413 | int len = PATH_MAX; | |
414 | ||
415 | len = GetWindowsDirectory (dir, len); | |
416 | if (dir[len - 1] != '\\') | |
417 | strcat (dir, "\\"); | |
418 | strcat (dir, file); | |
419 | return dir; | |
420 | } | |
421 | ||
422 | /* Removes comments and white spaces at end of line and returns a pointer | |
423 | to the end of the line. */ | |
424 | static char * | |
425 | scm_i_socket_uncomment (char *line) | |
426 | { | |
427 | char *end; | |
428 | ||
429 | if ((end = strchr (line, '#')) != NULL) | |
430 | *end-- = '\0'; | |
431 | else | |
432 | { | |
433 | end = line + strlen (line) - 1; | |
434 | while (end > line && (*end == '\r' || *end == '\n')) | |
435 | *end-- = '\0'; | |
436 | } | |
437 | while (end > line && isspace (*end)) | |
438 | *end-- = '\0'; | |
439 | ||
440 | return end; | |
441 | } | |
442 | ||
443 | /* The getservent() function reads the next line from the file `/etc/services' | |
444 | and returns a structure servent containing the broken out fields from the | |
445 | line. The `/etc/services' file is opened if necessary. */ | |
446 | struct servent * | |
447 | getservent (void) | |
448 | { | |
449 | char line[MAX_NAMLEN], *end, *p; | |
450 | int done = 0, i, n, a; | |
451 | struct servent *e = NULL; | |
452 | ||
453 | /* Ensure a open file. */ | |
454 | if (scm_i_servent.fd == NULL || feof (scm_i_servent.fd)) | |
455 | { | |
456 | setservent (1); | |
457 | if (scm_i_servent.fd == NULL) | |
458 | return NULL; | |
459 | } | |
460 | ||
461 | while (!done) | |
462 | { | |
463 | /* Get new line. */ | |
464 | if (fgets (line, MAX_NAMLEN, scm_i_servent.fd) != NULL) | |
465 | { | |
466 | end = scm_i_socket_uncomment (line); | |
467 | ||
468 | /* Scan the line. */ | |
469 | if ((i = sscanf (line, "%s %d/%s%n", | |
470 | scm_i_servent.name, | |
471 | &scm_i_servent.port, | |
472 | scm_i_servent.proto, &n)) != 3) | |
473 | continue; | |
474 | ||
475 | /* Scan the remaining aliases. */ | |
476 | p = line + n; | |
477 | for (a = 0; a < MAX_ALIASES && p < end && i != -1 && n > 1; | |
478 | a++, p += n) | |
479 | i = sscanf (p, "%s%n", scm_i_servent.alias[a], &n); | |
480 | ||
481 | /* Prepare the return value. */ | |
482 | e = &scm_i_servent.ent; | |
483 | e->s_name = scm_i_servent.name; | |
484 | e->s_port = htons (scm_i_servent.port); | |
485 | e->s_proto = scm_i_servent.proto; | |
486 | e->s_aliases = scm_i_servent.aliases; | |
487 | scm_i_servent.aliases[a] = NULL; | |
488 | while (a--) | |
489 | scm_i_servent.aliases[a] = scm_i_servent.alias[a]; | |
490 | done = 1; | |
491 | } | |
492 | else | |
493 | break; | |
494 | } | |
495 | return done ? e : NULL; | |
496 | } | |
497 | ||
498 | /* The setservent() function opens and rewinds the `/etc/services' file. | |
499 | This file can be set from outside with an environment variable specifying | |
500 | the file name. */ | |
501 | void | |
502 | setservent (int stayopen) | |
503 | { | |
504 | char *file = NULL; | |
505 | ||
506 | endservent (); | |
507 | if ((file = getenv (ENVIRON_ETC_SERVICES)) != NULL) | |
508 | strcpy (scm_i_servent.file, file); | |
509 | else if ((file = scm_i_socket_filename (FILE_ETC_SERVICES)) != NULL) | |
510 | strcpy (scm_i_servent.file, file); | |
511 | scm_i_servent.fd = fopen (scm_i_servent.file, "rt"); | |
512 | } | |
513 | ||
514 | /* The endservent() function closes the `/etc/services' file. */ | |
515 | void | |
516 | endservent (void) | |
517 | { | |
518 | if (scm_i_servent.fd != NULL) | |
519 | { | |
520 | fclose (scm_i_servent.fd); | |
521 | scm_i_servent.fd = NULL; | |
522 | } | |
523 | } | |
524 | ||
525 | /* The getprotoent() function reads the next line from the file | |
526 | `/etc/protocols' and returns a structure protoent containing the broken | |
527 | out fields from the line. The `/etc/protocols' file is opened if | |
528 | necessary. */ | |
529 | struct protoent * | |
530 | getprotoent (void) | |
531 | { | |
532 | char line[MAX_NAMLEN], *end, *p; | |
533 | int done = 0, i, n, a; | |
534 | struct protoent *e = NULL; | |
535 | ||
536 | /* Ensure a open file. */ | |
537 | if (scm_i_protoent.fd == NULL || feof (scm_i_protoent.fd)) | |
538 | { | |
539 | setprotoent (1); | |
540 | if (scm_i_protoent.fd == NULL) | |
541 | return NULL; | |
542 | } | |
543 | ||
544 | while (!done) | |
545 | { | |
546 | /* Get new line. */ | |
547 | if (fgets (line, MAX_NAMLEN, scm_i_protoent.fd) != NULL) | |
548 | { | |
549 | end = scm_i_socket_uncomment (line); | |
550 | ||
551 | /* Scan the line. */ | |
552 | if ((i = sscanf (line, "%s %d%n", | |
553 | scm_i_protoent.name, | |
554 | &scm_i_protoent.proto, &n)) != 2) | |
555 | continue; | |
556 | ||
557 | /* Scan the remaining aliases. */ | |
558 | p = line + n; | |
559 | for (a = 0; a < MAX_ALIASES && p < end && i != -1 && n > 1; | |
560 | a++, p += n) | |
561 | i = sscanf (p, "%s%n", scm_i_protoent.alias[a], &n); | |
562 | ||
563 | /* Prepare the return value. */ | |
564 | e = &scm_i_protoent.ent; | |
565 | e->p_name = scm_i_protoent.name; | |
566 | e->p_proto = scm_i_protoent.proto; | |
567 | e->p_aliases = scm_i_protoent.aliases; | |
568 | scm_i_protoent.aliases[a] = NULL; | |
569 | while (a--) | |
570 | scm_i_protoent.aliases[a] = scm_i_protoent.alias[a]; | |
571 | done = 1; | |
572 | } | |
573 | else | |
574 | break; | |
575 | } | |
576 | return done ? e : NULL; | |
577 | } | |
578 | ||
579 | /* The setprotoent() function opens and rewinds the `/etc/protocols' file. | |
580 | As in setservent() the user can modify the location of the file using | |
581 | an environment variable. */ | |
582 | void | |
583 | setprotoent (int stayopen) | |
584 | { | |
585 | char *file = NULL; | |
586 | ||
587 | endprotoent (); | |
588 | if ((file = getenv (ENVIRON_ETC_PROTOCOLS)) != NULL) | |
589 | strcpy (scm_i_protoent.file, file); | |
590 | else if ((file = scm_i_socket_filename (FILE_ETC_PROTOCOLS)) != NULL) | |
591 | strcpy (scm_i_protoent.file, file); | |
592 | scm_i_protoent.fd = fopen (scm_i_protoent.file, "rt"); | |
593 | } | |
594 | ||
595 | /* The endprotoent() function closes `/etc/protocols'. */ | |
596 | void | |
597 | endprotoent (void) | |
598 | { | |
599 | if (scm_i_protoent.fd != NULL) | |
600 | { | |
601 | fclose (scm_i_protoent.fd); | |
602 | scm_i_protoent.fd = NULL; | |
603 | } | |
604 | } | |
605 | ||
b4e15479 SJ |
606 | /* Define both the original and replacement error symbol is possible. Thus |
607 | the user is able to check symbolic errors after unsuccessful networking | |
608 | function calls. */ | |
609 | static void | |
610 | scm_socket_symbols_Win32 (socket_error_t * e) | |
611 | { | |
612 | while (e->error != -1) | |
613 | { | |
614 | if (e->error) | |
615 | { | |
616 | if (e->correct_str) | |
e11e83f3 | 617 | scm_c_define (e->correct_str, scm_from_int (e->error)); |
b4e15479 | 618 | if (e->replace && e->replace_str) |
e11e83f3 | 619 | scm_c_define (e->replace_str, scm_from_int (e->replace)); |
b4e15479 SJ |
620 | } |
621 | e++; | |
622 | } | |
623 | } | |
624 | ||
625 | /* Initialize Winsock API under M$-Windows. */ | |
626 | void | |
627 | scm_i_init_socket_Win32 (void) | |
628 | { | |
629 | scm_socket_symbols_Win32 (socket_errno); | |
630 | scm_socket_symbols_Win32 (socket_h_errno); | |
631 | } |