Mercurial > dovecot > core-2.2
annotate src/lib/network.c @ 3523:d1ed3b3548db HEAD
Added some more error messages. Also if net_connect_ip() gives my_ip
parameter and it can't be given to bind(), don't silently ignore it.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Sun, 07 Aug 2005 16:06:56 +0300 |
parents | ddfa507bb74f |
children | 5ff3b88db948 |
rev | line source |
---|---|
1741
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Removed most of the license comments from src/lib/*.c. It's just fine to
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1 /* Copyright (c) 1999-2003 Timo Sirainen */ |
0 | 2 |
3 #include "lib.h" | |
4 #include "network.h" | |
5 | |
6 #include <unistd.h> | |
7 #include <fcntl.h> | |
8 #include <ctype.h> | |
9 #include <sys/un.h> | |
10 #include <netinet/tcp.h> | |
11 | |
12 union sockaddr_union { | |
13 struct sockaddr sa; | |
14 struct sockaddr_in sin; | |
15 #ifdef HAVE_IPV6 | |
16 struct sockaddr_in6 sin6; | |
17 #endif | |
18 }; | |
19 | |
20 #ifdef HAVE_IPV6 | |
21 # define SIZEOF_SOCKADDR(so) ((so).sa.sa_family == AF_INET6 ? \ | |
22 sizeof(so.sin6) : sizeof(so.sin)) | |
23 #else | |
24 # define SIZEOF_SOCKADDR(so) (sizeof(so.sin)) | |
25 #endif | |
26 | |
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27 int net_ip_compare(const struct ip_addr *ip1, const struct ip_addr *ip2) |
0 | 28 { |
29 if (ip1->family != ip2->family) | |
30 return 0; | |
31 | |
32 #ifdef HAVE_IPV6 | |
33 if (ip1->family == AF_INET6) | |
34 return memcmp(&ip1->ip, &ip2->ip, sizeof(ip1->ip)) == 0; | |
35 #endif | |
36 | |
37 return memcmp(&ip1->ip, &ip2->ip, 4) == 0; | |
38 } | |
39 | |
40 | |
41 /* copy IP to sockaddr */ | |
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42 static inline void |
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43 sin_set_ip(union sockaddr_union *so, const struct ip_addr *ip) |
0 | 44 { |
45 if (ip == NULL) { | |
46 #ifdef HAVE_IPV6 | |
47 so->sin6.sin6_family = AF_INET6; | |
48 so->sin6.sin6_addr = in6addr_any; | |
49 #else | |
50 so->sin.sin_family = AF_INET; | |
51 so->sin.sin_addr.s_addr = INADDR_ANY; | |
52 #endif | |
53 return; | |
54 } | |
55 | |
56 so->sin.sin_family = ip->family; | |
57 #ifdef HAVE_IPV6 | |
58 if (ip->family == AF_INET6) | |
59 memcpy(&so->sin6.sin6_addr, &ip->ip, sizeof(ip->ip)); | |
60 else | |
61 #endif | |
62 memcpy(&so->sin.sin_addr, &ip->ip, 4); | |
63 } | |
64 | |
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65 static inline void |
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66 sin_get_ip(const union sockaddr_union *so, struct ip_addr *ip) |
0 | 67 { |
68 ip->family = so->sin.sin_family; | |
69 | |
70 #ifdef HAVE_IPV6 | |
71 if (ip->family == AF_INET6) | |
72 memcpy(&ip->ip, &so->sin6.sin6_addr, sizeof(ip->ip)); | |
73 else | |
74 #endif | |
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75 if (ip->family == AF_INET) |
0 | 76 memcpy(&ip->ip, &so->sin.sin_addr, 4); |
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77 else |
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78 memset(&ip->ip, 0, sizeof(ip->ip)); |
0 | 79 } |
80 | |
349 | 81 static inline void sin_set_port(union sockaddr_union *so, unsigned int port) |
0 | 82 { |
83 #ifdef HAVE_IPV6 | |
84 if (so->sin.sin_family == AF_INET6) | |
85 so->sin6.sin6_port = htons((unsigned short) port); | |
86 else | |
87 #endif | |
88 so->sin.sin_port = htons((unsigned short) port); | |
89 } | |
90 | |
349 | 91 static inline unsigned int sin_get_port(union sockaddr_union *so) |
0 | 92 { |
93 #ifdef HAVE_IPV6 | |
94 if (so->sin.sin_family == AF_INET6) | |
95 return ntohs(so->sin6.sin6_port); | |
96 #endif | |
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97 if (so->sin.sin_family == AF_INET) |
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98 return ntohs(so->sin.sin_port); |
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99 |
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100 return 0; |
0 | 101 } |
102 | |
103 static inline void close_save_errno(int fd) | |
104 { | |
105 int old_errno = errno; | |
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106 (void)close(fd); |
0 | 107 errno = old_errno; |
108 } | |
109 | |
110 /* Connect to socket with ip address */ | |
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111 int net_connect_ip(const struct ip_addr *ip, unsigned int port, |
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112 const struct ip_addr *my_ip) |
0 | 113 { |
114 union sockaddr_union so; | |
115 int fd, ret, opt = 1; | |
116 | |
117 if (my_ip != NULL && ip->family != my_ip->family) { | |
118 i_warning("net_connect_ip(): ip->family != my_ip->family"); | |
119 my_ip = NULL; | |
120 } | |
121 | |
122 /* create the socket */ | |
123 memset(&so, 0, sizeof(so)); | |
124 so.sin.sin_family = ip->family; | |
125 fd = socket(ip->family, SOCK_STREAM, 0); | |
126 | |
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127 if (fd == -1) { |
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128 i_error("socket() failed: %m"); |
0 | 129 return -1; |
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130 } |
0 | 131 |
132 /* set socket options */ | |
133 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
134 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
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135 net_set_nonblock(fd, TRUE); |
0 | 136 |
137 /* set our own address */ | |
138 if (my_ip != NULL) { | |
139 sin_set_ip(&so, my_ip); | |
140 if (bind(fd, &so.sa, SIZEOF_SOCKADDR(so)) == -1) { | |
141 /* failed, set it back to INADDR_ANY */ | |
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142 i_error("bind(%s) failed: %m", net_ip2addr(my_ip)); |
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143 close_save_errno(fd); |
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144 return -1; |
0 | 145 } |
146 } | |
147 | |
148 /* connect */ | |
149 sin_set_ip(&so, ip); | |
150 sin_set_port(&so, port); | |
151 ret = connect(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
152 | |
153 #ifndef WIN32 | |
154 if (ret < 0 && errno != EINPROGRESS) | |
155 #else | |
156 if (ret < 0 && WSAGetLastError() != WSAEWOULDBLOCK) | |
157 #endif | |
158 { | |
159 close_save_errno(fd); | |
160 return -1; | |
161 } | |
162 | |
163 return fd; | |
164 } | |
165 | |
166 int net_connect_unix(const char *path) | |
167 { | |
168 struct sockaddr_un sa; | |
169 int fd, ret; | |
170 | |
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171 memset(&sa, 0, sizeof(sa)); |
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172 sa.sun_family = AF_UNIX; |
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173 if (strocpy(sa.sun_path, path, sizeof(sa.sun_path)) < 0) { |
0 | 174 /* too long path */ |
175 errno = EINVAL; | |
176 return -1; | |
177 } | |
178 | |
179 /* create the socket */ | |
180 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
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181 if (fd == -1) { |
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182 i_error("socket(%s) failed: %m", path); |
0 | 183 return -1; |
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184 } |
0 | 185 |
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186 net_set_nonblock(fd, TRUE); |
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187 |
0 | 188 /* connect */ |
189 ret = connect(fd, (struct sockaddr *) &sa, sizeof(sa)); | |
190 if (ret < 0 && errno != EINPROGRESS) { | |
191 close_save_errno(fd); | |
192 return -1; | |
193 } | |
194 | |
195 return fd; | |
196 } | |
197 | |
198 /* Disconnect socket */ | |
199 void net_disconnect(int fd) | |
200 { | |
388
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201 if (close(fd) < 0) |
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202 i_error("net_disconnect() failed: %m"); |
0 | 203 } |
204 | |
205 /* Set socket blocking/nonblocking */ | |
34
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206 void net_set_nonblock(int fd __attr_unused__, int nonblock __attr_unused__) |
0 | 207 { |
208 #ifdef HAVE_FCNTL | |
1871
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209 int flags; |
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210 |
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211 flags = fcntl(fd, F_GETFL, 0); |
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212 if (flags == -1) |
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213 i_fatal("net_set_nonblock() failed: %m"); |
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214 |
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215 if (nonblock) |
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216 flags |= O_NONBLOCK; |
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217 else |
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218 flags &= ~O_NONBLOCK; |
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219 |
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220 if (fcntl(fd, F_SETFL, flags) < 0) |
628 | 221 i_fatal("net_set_nonblock() failed: %m"); |
0 | 222 #endif |
223 } | |
224 | |
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225 int net_set_cork(int fd __attr_unused__, int cork __attr_unused__) |
0 | 226 { |
227 #ifdef TCP_CORK | |
410
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228 return setsockopt(fd, SOL_TCP, TCP_CORK, &cork, sizeof(cork)); |
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229 #else |
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230 errno = ENOPROTOOPT; |
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231 return -1; |
0 | 232 #endif |
233 } | |
234 | |
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235 void net_get_ip_any4(struct ip_addr *ip) |
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236 { |
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237 struct in_addr *in_ip = (struct in_addr *) &ip->ip; |
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238 |
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239 ip->family = AF_INET; |
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240 in_ip->s_addr = INADDR_ANY; |
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241 } |
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242 |
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243 void net_get_ip_any6(struct ip_addr *ip) |
780
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244 { |
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245 #ifdef HAVE_IPV6 |
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246 ip->family = AF_INET6; |
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247 ip->ip = in6addr_any; |
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248 #else |
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249 memset(ip, 0, sizeof(struct ip_addr)); |
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250 #endif |
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251 } |
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252 |
0 | 253 /* Listen for connections on a socket. if `my_ip' is NULL, listen in any |
254 address. */ | |
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255 int net_listen(const struct ip_addr *my_ip, unsigned int *port, int backlog) |
0 | 256 { |
257 union sockaddr_union so; | |
258 int ret, fd, opt = 1; | |
259 socklen_t len; | |
260 | |
261 i_assert(port != NULL); | |
262 | |
263 memset(&so, 0, sizeof(so)); | |
264 sin_set_port(&so, *port); | |
265 sin_set_ip(&so, my_ip); | |
266 | |
267 /* create the socket */ | |
268 fd = socket(so.sin.sin_family, SOCK_STREAM, 0); | |
269 #ifdef HAVE_IPV6 | |
270 if (fd == -1 && (errno == EINVAL || errno == EAFNOSUPPORT)) { | |
271 /* IPv6 is not supported by OS */ | |
272 so.sin.sin_family = AF_INET; | |
273 so.sin.sin_addr.s_addr = INADDR_ANY; | |
274 | |
275 fd = socket(AF_INET, SOCK_STREAM, 0); | |
276 } | |
277 #endif | |
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278 if (fd == -1) { |
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279 i_error("socket() failed: %m"); |
0 | 280 return -1; |
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281 } |
0 | 282 |
283 /* set socket options */ | |
284 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
285 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
286 | |
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287 /* if using IPv6, bind both on the IPv4 and IPv6 addresses */ |
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288 #ifdef IPV6_V6ONLY |
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289 if (so.sin.sin_family == AF_INET6) { |
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290 opt = 0; |
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291 setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof(opt)); |
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292 } |
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293 #endif |
0 | 294 /* specify the address/port we want to listen in */ |
295 ret = bind(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
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296 if (ret < 0) |
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297 i_error("bind(%s) failed: %m", net_ip2addr(my_ip)); |
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298 else { |
0 | 299 /* get the actual port we started listen */ |
300 len = SIZEOF_SOCKADDR(so); | |
301 ret = getsockname(fd, &so.sa, &len); | |
302 if (ret >= 0) { | |
303 *port = sin_get_port(&so); | |
304 | |
305 /* start listening */ | |
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306 if (listen(fd, backlog) >= 0) |
0 | 307 return fd; |
308 } | |
309 } | |
310 | |
311 /* error */ | |
312 close_save_errno(fd); | |
313 return -1; | |
314 } | |
315 | |
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316 int net_listen_unix(const char *path, int backlog) |
0 | 317 { |
318 struct sockaddr_un sa; | |
319 int fd; | |
320 | |
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321 memset(&sa, 0, sizeof(sa)); |
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322 sa.sun_family = AF_UNIX; |
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323 if (strocpy(sa.sun_path, path, sizeof(sa.sun_path)) < 0) { |
0 | 324 /* too long path */ |
325 errno = EINVAL; | |
326 return -1; | |
327 } | |
328 | |
329 /* create the socket */ | |
330 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
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331 if (fd == -1) { |
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332 i_error("socket() failed: %m"); |
0 | 333 return -1; |
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334 } |
0 | 335 |
336 /* bind */ | |
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337 if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) |
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338 i_error("bind(%s) failed: %m", path); |
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339 else { |
0 | 340 /* start listening */ |
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341 if (listen(fd, backlog) == 0) |
0 | 342 return fd; |
343 } | |
344 | |
345 close_save_errno(fd); | |
346 return -1; | |
347 } | |
348 | |
349 /* Accept a connection on a socket */ | |
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350 int net_accept(int fd, struct ip_addr *addr, unsigned int *port) |
0 | 351 { |
352 union sockaddr_union so; | |
353 int ret; | |
354 socklen_t addrlen; | |
355 | |
356 i_assert(fd >= 0); | |
357 | |
358 addrlen = sizeof(so); | |
359 ret = accept(fd, &so.sa, &addrlen); | |
360 | |
680
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361 if (ret < 0) { |
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362 if (errno == EBADF || errno == ENOTSOCK || |
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363 errno == EOPNOTSUPP || errno == EFAULT || errno == EINVAL) |
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364 return -2; |
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365 else |
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366 return -1; |
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367 } |
0 | 368 |
369 if (addr != NULL) sin_get_ip(&so, addr); | |
370 if (port != NULL) *port = sin_get_port(&so); | |
371 | |
372 return ret; | |
373 } | |
374 | |
375 /* Read data from socket, return number of bytes read, -1 = error */ | |
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376 ssize_t net_receive(int fd, void *buf, size_t len) |
0 | 377 { |
183
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378 ssize_t ret; |
0 | 379 |
380 i_assert(fd >= 0); | |
381 i_assert(buf != NULL); | |
183
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382 i_assert(len <= SSIZE_T_MAX); |
0 | 383 |
384 ret = recv(fd, buf, len, 0); | |
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385 if (ret == 0) { |
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386 /* disconnected */ |
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387 errno = 0; |
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388 return -2; |
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389 } |
0 | 390 |
781
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391 if (ret < 0) { |
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392 if (errno == EINTR || errno == EAGAIN) |
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393 return 0; |
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394 |
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395 if (errno == ECONNRESET || errno == ETIMEDOUT) { |
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396 /* treat as disconnection */ |
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397 return -2; |
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398 } |
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399 } |
0 | 400 |
401 return ret; | |
402 } | |
403 | |
404 /* Transmit data, return number of bytes sent, -1 = error */ | |
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405 ssize_t net_transmit(int fd, const void *data, size_t len) |
0 | 406 { |
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407 ssize_t ret; |
0 | 408 |
409 i_assert(fd >= 0); | |
410 i_assert(data != NULL); | |
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411 i_assert(len <= SSIZE_T_MAX); |
0 | 412 |
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413 ret = send(fd, data, len, 0); |
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414 if (ret == -1 && (errno == EINTR || errno == EAGAIN)) |
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415 return 0; |
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416 |
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417 if (errno == EPIPE) |
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418 return -2; |
0 | 419 |
420 return ret; | |
421 } | |
422 | |
423 /* Get IP addresses for host. ips contains ips_count of IPs, they don't need | |
424 to be free'd. Returns 0 = ok, others = error code for net_gethosterror() */ | |
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425 int net_gethostbyname(const char *addr, struct ip_addr **ips, int *ips_count) |
0 | 426 { |
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427 /* @UNSAFE */ |
0 | 428 #ifdef HAVE_IPV6 |
429 union sockaddr_union *so; | |
430 struct addrinfo hints, *ai, *origai; | |
431 char hbuf[NI_MAXHOST]; | |
432 int host_error; | |
433 #else | |
434 struct hostent *hp; | |
435 #endif | |
436 int count; | |
437 | |
438 i_assert(addr != NULL); | |
439 i_assert(ips != NULL); | |
440 i_assert(ips_count != NULL); | |
441 | |
442 *ips = NULL; | |
443 *ips_count = 0; | |
444 | |
445 #ifdef HAVE_IPV6 | |
446 memset(&hints, 0, sizeof(struct addrinfo)); | |
447 hints.ai_socktype = SOCK_STREAM; | |
448 | |
449 /* save error to host_error for later use */ | |
450 host_error = getaddrinfo(addr, NULL, &hints, &ai); | |
451 if (host_error != 0) | |
452 return host_error; | |
453 | |
454 if (getnameinfo(ai->ai_addr, ai->ai_addrlen, hbuf, | |
455 sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0) | |
456 return 1; | |
457 | |
458 | |
459 /* get number of IPs */ | |
460 origai = ai; | |
461 for (count = 0; ai != NULL; ai = ai->ai_next) | |
462 count++; | |
463 | |
464 *ips_count = count; | |
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465 *ips = t_malloc(sizeof(struct ip_addr) * count); |
0 | 466 |
467 count = 0; | |
468 for (ai = origai; ai != NULL; ai = ai->ai_next, count++) { | |
469 so = (union sockaddr_union *) ai->ai_addr; | |
470 | |
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471 sin_get_ip(so, &(*ips)[count]); |
0 | 472 } |
473 freeaddrinfo(origai); | |
474 #else | |
475 hp = gethostbyname(addr); | |
476 if (hp == NULL) | |
477 return h_errno; | |
478 | |
479 /* get number of IPs */ | |
480 count = 0; | |
481 while (hp->h_addr_list[count] != NULL) | |
482 count++; | |
483 | |
484 *ips_count = count; | |
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485 *ips = t_malloc(sizeof(struct ip_addr) * count); |
0 | 486 |
487 while (count > 0) { | |
488 count--; | |
489 | |
490 (*ips)[count].family = AF_INET; | |
491 memcpy(&(*ips)[count].ip, hp->h_addr_list[count], 4); | |
492 } | |
493 #endif | |
494 | |
495 return 0; | |
496 } | |
497 | |
498 /* Get socket address/port */ | |
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499 int net_getsockname(int fd, struct ip_addr *addr, unsigned int *port) |
0 | 500 { |
501 union sockaddr_union so; | |
502 socklen_t addrlen; | |
503 | |
504 i_assert(fd >= 0); | |
505 | |
506 addrlen = sizeof(so); | |
507 if (getsockname(fd, (struct sockaddr *) &so, &addrlen) == -1) | |
508 return -1; | |
509 | |
510 if (addr != NULL) sin_get_ip(&so, addr); | |
511 if (port != NULL) *port = sin_get_port(&so); | |
512 | |
513 return 0; | |
514 } | |
515 | |
2098 | 516 int net_getpeername(int fd, struct ip_addr *addr, unsigned int *port) |
517 { | |
518 union sockaddr_union so; | |
519 socklen_t addrlen; | |
520 | |
521 i_assert(fd >= 0); | |
522 | |
523 addrlen = sizeof(so); | |
524 if (getpeername(fd, (struct sockaddr *) &so, &addrlen) == -1) | |
525 return -1; | |
526 | |
527 if (addr != NULL) sin_get_ip(&so, addr); | |
528 if (port != NULL) *port = sin_get_port(&so); | |
529 | |
530 return 0; | |
531 } | |
532 | |
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533 const char *net_ip2addr(const struct ip_addr *ip) |
0 | 534 { |
535 #ifdef HAVE_IPV6 | |
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536 char addr[MAX_IP_LEN+1]; |
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537 |
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538 addr[MAX_IP_LEN] = '\0'; |
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539 if (inet_ntop(ip->family, &ip->ip, addr, MAX_IP_LEN) == NULL) |
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540 return NULL; |
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541 |
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542 return t_strdup(addr); |
0 | 543 #else |
544 unsigned long ip4; | |
545 | |
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546 if (ip->family != AF_INET) |
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547 return NULL; |
0 | 548 |
549 ip4 = ntohl(ip->ip.s_addr); | |
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550 return t_strdup_printf("%lu.%lu.%lu.%lu", |
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551 (ip4 & 0xff000000UL) >> 24, |
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552 (ip4 & 0x00ff0000) >> 16, |
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553 (ip4 & 0x0000ff00) >> 8, |
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554 (ip4 & 0x000000ff)); |
0 | 555 #endif |
556 } | |
557 | |
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558 int net_addr2ip(const char *addr, struct ip_addr *ip) |
0 | 559 { |
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560 if (strchr(addr, ':') != NULL) { |
0 | 561 /* IPv6 */ |
562 ip->family = AF_INET6; | |
563 #ifdef HAVE_IPV6 | |
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564 if (inet_pton(AF_INET6, addr, &ip->ip) == 0) |
0 | 565 return -1; |
566 #else | |
567 ip->ip.s_addr = 0; | |
568 #endif | |
569 } else { | |
570 /* IPv4 */ | |
571 ip->family = AF_INET; | |
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572 if (inet_aton(addr, (struct in_addr *) &ip->ip) == 0) |
0 | 573 return -1; |
574 } | |
575 | |
576 return 0; | |
577 } | |
578 | |
579 /* Get socket error */ | |
580 int net_geterror(int fd) | |
581 { | |
582 int data; | |
583 socklen_t len = sizeof(data); | |
584 | |
585 if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &data, &len) == -1) | |
586 return -1; | |
587 | |
588 return data; | |
589 } | |
590 | |
591 /* get error of net_gethostname() */ | |
592 const char *net_gethosterror(int error) | |
593 { | |
594 #ifdef HAVE_IPV6 | |
595 i_assert(error != 0); | |
596 | |
597 if (error == 1) { | |
598 /* getnameinfo() failed */ | |
599 return strerror(errno); | |
600 } | |
601 | |
602 return gai_strerror(error); | |
603 #else | |
604 switch (error) { | |
605 case HOST_NOT_FOUND: | |
606 return "Host not found"; | |
607 case NO_ADDRESS: | |
608 return "No IP address found for name"; | |
609 case NO_RECOVERY: | |
610 return "A non-recovable name server error occurred"; | |
611 case TRY_AGAIN: | |
612 return "A temporary error on an authoritative name server"; | |
613 } | |
614 | |
615 /* unknown error */ | |
616 return NULL; | |
617 #endif | |
618 } | |
619 | |
620 /* return TRUE if host lookup failed because it didn't exist (ie. not | |
621 some error with name server) */ | |
622 int net_hosterror_notfound(int error) | |
623 { | |
624 #ifdef HAVE_IPV6 | |
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625 #ifdef EAI_NODATA /* NODATA is depricated */ |
0 | 626 return error != 1 && (error == EAI_NONAME || error == EAI_NODATA); |
627 #else | |
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628 return error != 1 && (error == EAI_NONAME); |
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629 #endif |
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630 #else |
0 | 631 return error == HOST_NOT_FOUND || error == NO_ADDRESS; |
632 #endif | |
633 } | |
634 | |
635 /* Get name of TCP service */ | |
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636 const char *net_getservbyport(unsigned short port) |
0 | 637 { |
638 struct servent *entry; | |
639 | |
349 | 640 entry = getservbyport(htons(port), "tcp"); |
0 | 641 return entry == NULL ? NULL : entry->s_name; |
642 } | |
643 | |
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644 int is_ipv4_address(const char *addr) |
0 | 645 { |
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646 while (*addr != '\0') { |
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647 if (*addr != '.' && !i_isdigit(*addr)) |
0 | 648 return 0; |
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649 addr++; |
0 | 650 } |
651 | |
652 return 1; | |
653 } | |
654 | |
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655 int is_ipv6_address(const char *addr) |
0 | 656 { |
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657 while (*addr != '\0') { |
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658 if (*addr != ':' && !i_isxdigit(*addr)) |
0 | 659 return 0; |
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660 addr++; |
0 | 661 } |
662 | |
663 return 1; | |
664 } |