Mercurial > dovecot > core-2.2
annotate src/lib/network.c @ 6429:65c69a53a7be HEAD
Replaced my Copyright notices. The year range always ends with 2007 now.
My name was replaced with "Dovecot authors". In many cases I didn't really
even own the copyright, so this is more correct.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Sun, 16 Sep 2007 14:34:22 +0300 |
parents | 18173a52f721 |
children | fc5e27a49c87 |
rev | line source |
---|---|
6429
65c69a53a7be
Replaced my Copyright notices. The year range always ends with 2007 now.
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1 /* Copyright (c) 1999-2007 Dovecot authors, see the included COPYING file */ |
0 | 2 |
3 #include "lib.h" | |
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4 #include "close-keep-errno.h" |
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5 #include "fd-set-nonblock.h" |
0 | 6 #include "network.h" |
7 | |
8 #include <unistd.h> | |
9 #include <fcntl.h> | |
10 #include <ctype.h> | |
11 #include <sys/un.h> | |
12 #include <netinet/tcp.h> | |
13 | |
14 union sockaddr_union { | |
15 struct sockaddr sa; | |
16 struct sockaddr_in sin; | |
17 #ifdef HAVE_IPV6 | |
18 struct sockaddr_in6 sin6; | |
19 #endif | |
20 }; | |
21 | |
22 #ifdef HAVE_IPV6 | |
23 # define SIZEOF_SOCKADDR(so) ((so).sa.sa_family == AF_INET6 ? \ | |
24 sizeof(so.sin6) : sizeof(so.sin)) | |
25 #else | |
26 # define SIZEOF_SOCKADDR(so) (sizeof(so.sin)) | |
27 #endif | |
28 | |
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29 bool net_ip_compare(const struct ip_addr *ip1, const struct ip_addr *ip2) |
0 | 30 { |
31 if (ip1->family != ip2->family) | |
32 return 0; | |
33 | |
34 #ifdef HAVE_IPV6 | |
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35 if (ip1->family == AF_INET6) { |
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36 return memcmp(&ip1->u.ip6, &ip2->u.ip6, |
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37 sizeof(ip1->u.ip6)) == 0; |
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38 } |
0 | 39 #endif |
40 | |
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41 return memcmp(&ip1->u.ip4, &ip2->u.ip4, sizeof(ip1->u.ip4)) == 0; |
0 | 42 } |
43 | |
5865 | 44 unsigned int net_ip_hash(const struct ip_addr *ip) |
45 { | |
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46 const unsigned char *p; |
5865 | 47 unsigned int len, g, h = 0; |
48 | |
49 #ifdef HAVE_IPV6 | |
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50 if (ip->family == AF_INET6) { |
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51 p = ip->u.ip6.s6_addr; |
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52 len = sizeof(ip->u.ip6); |
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53 } else |
5865 | 54 #endif |
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55 { |
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56 return ip->u.ip4.s_addr; |
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57 } |
5865 | 58 |
59 for (; len > 0; len--, p++) { | |
60 h = (h << 4) + *p; | |
61 if ((g = h & 0xf0000000UL)) { | |
62 h = h ^ (g >> 24); | |
63 h = h ^ g; | |
64 } | |
65 } | |
66 | |
67 return h; | |
68 } | |
0 | 69 |
70 /* copy IP to sockaddr */ | |
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71 static inline void |
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72 sin_set_ip(union sockaddr_union *so, const struct ip_addr *ip) |
0 | 73 { |
74 if (ip == NULL) { | |
75 #ifdef HAVE_IPV6 | |
76 so->sin6.sin6_family = AF_INET6; | |
77 so->sin6.sin6_addr = in6addr_any; | |
78 #else | |
79 so->sin.sin_family = AF_INET; | |
80 so->sin.sin_addr.s_addr = INADDR_ANY; | |
81 #endif | |
82 return; | |
83 } | |
84 | |
85 so->sin.sin_family = ip->family; | |
86 #ifdef HAVE_IPV6 | |
87 if (ip->family == AF_INET6) | |
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88 memcpy(&so->sin6.sin6_addr, &ip->u.ip6, sizeof(ip->u.ip6)); |
0 | 89 else |
90 #endif | |
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91 memcpy(&so->sin.sin_addr, &ip->u.ip4, sizeof(ip->u.ip4)); |
0 | 92 } |
93 | |
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94 static inline void |
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95 sin_get_ip(const union sockaddr_union *so, struct ip_addr *ip) |
0 | 96 { |
97 ip->family = so->sin.sin_family; | |
98 | |
99 #ifdef HAVE_IPV6 | |
100 if (ip->family == AF_INET6) | |
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101 memcpy(&ip->u.ip6, &so->sin6.sin6_addr, sizeof(ip->u.ip6)); |
0 | 102 else |
103 #endif | |
3400
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104 if (ip->family == AF_INET) |
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105 memcpy(&ip->u.ip4, &so->sin.sin_addr, sizeof(ip->u.ip4)); |
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106 else |
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107 memset(&ip->u, 0, sizeof(ip->u)); |
0 | 108 } |
109 | |
349 | 110 static inline void sin_set_port(union sockaddr_union *so, unsigned int port) |
0 | 111 { |
112 #ifdef HAVE_IPV6 | |
113 if (so->sin.sin_family == AF_INET6) | |
114 so->sin6.sin6_port = htons((unsigned short) port); | |
115 else | |
116 #endif | |
117 so->sin.sin_port = htons((unsigned short) port); | |
118 } | |
119 | |
349 | 120 static inline unsigned int sin_get_port(union sockaddr_union *so) |
0 | 121 { |
122 #ifdef HAVE_IPV6 | |
123 if (so->sin.sin_family == AF_INET6) | |
124 return ntohs(so->sin6.sin6_port); | |
125 #endif | |
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126 if (so->sin.sin_family == AF_INET) |
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127 return ntohs(so->sin.sin_port); |
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128 |
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129 return 0; |
0 | 130 } |
131 | |
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132 int net_connect_ip(const struct ip_addr *ip, unsigned int port, |
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133 const struct ip_addr *my_ip) |
0 | 134 { |
135 union sockaddr_union so; | |
136 int fd, ret, opt = 1; | |
137 | |
138 if (my_ip != NULL && ip->family != my_ip->family) { | |
139 i_warning("net_connect_ip(): ip->family != my_ip->family"); | |
140 my_ip = NULL; | |
141 } | |
142 | |
143 /* create the socket */ | |
144 memset(&so, 0, sizeof(so)); | |
145 so.sin.sin_family = ip->family; | |
146 fd = socket(ip->family, SOCK_STREAM, 0); | |
147 | |
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148 if (fd == -1) { |
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149 i_error("socket() failed: %m"); |
0 | 150 return -1; |
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151 } |
0 | 152 |
153 /* set socket options */ | |
154 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
155 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
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156 net_set_nonblock(fd, TRUE); |
0 | 157 |
158 /* set our own address */ | |
159 if (my_ip != NULL) { | |
160 sin_set_ip(&so, my_ip); | |
161 if (bind(fd, &so.sa, SIZEOF_SOCKADDR(so)) == -1) { | |
162 /* failed, set it back to INADDR_ANY */ | |
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163 i_error("bind(%s) failed: %m", net_ip2addr(my_ip)); |
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164 close_keep_errno(fd); |
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165 return -1; |
0 | 166 } |
167 } | |
168 | |
169 /* connect */ | |
170 sin_set_ip(&so, ip); | |
171 sin_set_port(&so, port); | |
172 ret = connect(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
173 | |
174 #ifndef WIN32 | |
175 if (ret < 0 && errno != EINPROGRESS) | |
176 #else | |
177 if (ret < 0 && WSAGetLastError() != WSAEWOULDBLOCK) | |
178 #endif | |
179 { | |
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180 close_keep_errno(fd); |
0 | 181 return -1; |
182 } | |
183 | |
184 return fd; | |
185 } | |
186 | |
187 int net_connect_unix(const char *path) | |
188 { | |
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189 union { |
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190 struct sockaddr sa; |
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191 struct sockaddr_un un; |
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192 } sa; |
0 | 193 int fd, ret; |
194 | |
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195 memset(&sa, 0, sizeof(sa)); |
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196 sa.un.sun_family = AF_UNIX; |
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197 if (i_strocpy(sa.un.sun_path, path, sizeof(sa.un.sun_path)) < 0) { |
0 | 198 /* too long path */ |
199 errno = EINVAL; | |
200 return -1; | |
201 } | |
202 | |
203 /* create the socket */ | |
204 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
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205 if (fd == -1) { |
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206 i_error("socket(%s) failed: %m", path); |
0 | 207 return -1; |
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208 } |
0 | 209 |
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210 net_set_nonblock(fd, TRUE); |
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211 |
0 | 212 /* connect */ |
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213 ret = connect(fd, &sa.sa, sizeof(sa)); |
0 | 214 if (ret < 0 && errno != EINPROGRESS) { |
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215 close_keep_errno(fd); |
0 | 216 return -1; |
217 } | |
218 | |
219 return fd; | |
220 } | |
221 | |
222 void net_disconnect(int fd) | |
223 { | |
388
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224 if (close(fd) < 0) |
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225 i_error("net_disconnect() failed: %m"); |
0 | 226 } |
227 | |
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228 void net_set_nonblock(int fd, bool nonblock) |
0 | 229 { |
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230 if (fd_set_nonblock(fd, nonblock) < 0) |
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231 i_fatal("fd_set_nonblock(%d) failed: %m", fd); |
0 | 232 } |
233 | |
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234 int net_set_cork(int fd ATTR_UNUSED, bool cork ATTR_UNUSED) |
0 | 235 { |
236 #ifdef TCP_CORK | |
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237 int val = cork; |
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238 |
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239 return setsockopt(fd, IPPROTO_TCP, TCP_CORK, &val, sizeof(val)); |
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240 #else |
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241 errno = ENOPROTOOPT; |
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242 return -1; |
0 | 243 #endif |
244 } | |
245 | |
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246 void net_get_ip_any4(struct ip_addr *ip) |
780
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247 { |
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248 ip->family = AF_INET; |
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249 ip->u.ip4.s_addr = INADDR_ANY; |
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250 } |
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251 |
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252 void net_get_ip_any6(struct ip_addr *ip) |
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253 { |
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254 #ifdef HAVE_IPV6 |
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255 ip->family = AF_INET6; |
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256 ip->u.ip6 = in6addr_any; |
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257 #else |
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258 memset(ip, 0, sizeof(struct ip_addr)); |
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259 #endif |
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260 } |
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261 |
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262 int net_listen(const struct ip_addr *my_ip, unsigned int *port, int backlog) |
0 | 263 { |
264 union sockaddr_union so; | |
265 int ret, fd, opt = 1; | |
266 socklen_t len; | |
267 | |
268 memset(&so, 0, sizeof(so)); | |
269 sin_set_port(&so, *port); | |
270 sin_set_ip(&so, my_ip); | |
271 | |
272 /* create the socket */ | |
273 fd = socket(so.sin.sin_family, SOCK_STREAM, 0); | |
274 #ifdef HAVE_IPV6 | |
275 if (fd == -1 && (errno == EINVAL || errno == EAFNOSUPPORT)) { | |
276 /* IPv6 is not supported by OS */ | |
277 so.sin.sin_family = AF_INET; | |
278 so.sin.sin_addr.s_addr = INADDR_ANY; | |
279 | |
280 fd = socket(AF_INET, SOCK_STREAM, 0); | |
281 } | |
282 #endif | |
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283 if (fd == -1) { |
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284 i_error("socket() failed: %m"); |
0 | 285 return -1; |
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286 } |
0 | 287 |
288 /* set socket options */ | |
289 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
290 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
291 | |
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292 /* if using IPv6, bind both on the IPv4 and IPv6 addresses */ |
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293 #ifdef IPV6_V6ONLY |
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294 if (so.sin.sin_family == AF_INET6) { |
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295 opt = 0; |
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296 setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof(opt)); |
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297 } |
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298 #endif |
0 | 299 /* specify the address/port we want to listen in */ |
300 ret = bind(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
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301 if (ret < 0) { |
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302 if (errno != EADDRINUSE) { |
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303 i_error("bind(%s, %u) failed: %m", |
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304 net_ip2addr(my_ip), *port); |
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305 } |
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306 } else { |
0 | 307 /* get the actual port we started listen */ |
308 len = SIZEOF_SOCKADDR(so); | |
309 ret = getsockname(fd, &so.sa, &len); | |
310 if (ret >= 0) { | |
311 *port = sin_get_port(&so); | |
312 | |
313 /* start listening */ | |
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314 if (listen(fd, backlog) >= 0) |
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315 return fd; |
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316 |
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317 if (errno != EADDRINUSE) |
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318 i_error("listen() failed: %m"); |
0 | 319 } |
320 } | |
321 | |
322 /* error */ | |
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323 close_keep_errno(fd); |
0 | 324 return -1; |
325 } | |
326 | |
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327 int net_listen_unix(const char *path, int backlog) |
0 | 328 { |
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329 union { |
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330 struct sockaddr sa; |
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331 struct sockaddr_un un; |
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332 } sa; |
0 | 333 int fd; |
334 | |
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335 memset(&sa, 0, sizeof(sa)); |
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336 sa.un.sun_family = AF_UNIX; |
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337 if (i_strocpy(sa.un.sun_path, path, sizeof(sa.un.sun_path)) < 0) { |
0 | 338 /* too long path */ |
339 errno = EINVAL; | |
340 return -1; | |
341 } | |
342 | |
343 /* create the socket */ | |
344 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
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345 if (fd == -1) { |
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346 i_error("socket() failed: %m"); |
0 | 347 return -1; |
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348 } |
0 | 349 |
350 /* bind */ | |
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351 if (bind(fd, &sa.sa, sizeof(sa)) < 0) { |
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352 if (errno != EADDRINUSE) |
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353 i_error("bind(%s) failed: %m", path); |
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354 } else { |
0 | 355 /* start listening */ |
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356 if (listen(fd, backlog) == 0) |
0 | 357 return fd; |
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358 |
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359 if (errno != EADDRINUSE) |
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360 i_error("listen() failed: %m"); |
0 | 361 } |
362 | |
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363 close_keep_errno(fd); |
0 | 364 return -1; |
365 } | |
366 | |
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367 int net_accept(int fd, struct ip_addr *addr, unsigned int *port) |
0 | 368 { |
369 union sockaddr_union so; | |
370 int ret; | |
371 socklen_t addrlen; | |
372 | |
373 i_assert(fd >= 0); | |
374 | |
375 addrlen = sizeof(so); | |
376 ret = accept(fd, &so.sa, &addrlen); | |
377 | |
680
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378 if (ret < 0) { |
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379 if (errno == EAGAIN || errno == ECONNABORTED) |
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380 return -1; |
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381 else |
680
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382 return -2; |
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383 } |
0 | 384 |
385 if (addr != NULL) sin_get_ip(&so, addr); | |
386 if (port != NULL) *port = sin_get_port(&so); | |
387 | |
388 return ret; | |
389 } | |
390 | |
183
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391 ssize_t net_receive(int fd, void *buf, size_t len) |
0 | 392 { |
183
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393 ssize_t ret; |
0 | 394 |
395 i_assert(fd >= 0); | |
183
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396 i_assert(len <= SSIZE_T_MAX); |
0 | 397 |
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398 ret = read(fd, buf, len); |
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399 if (ret == 0) { |
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400 /* disconnected */ |
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401 errno = 0; |
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402 return -2; |
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403 } |
0 | 404 |
781
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405 if (ret < 0) { |
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406 if (errno == EINTR || errno == EAGAIN) |
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407 return 0; |
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408 |
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409 if (errno == ECONNRESET || errno == ETIMEDOUT) { |
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410 /* treat as disconnection */ |
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411 return -2; |
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412 } |
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413 } |
0 | 414 |
415 return ret; | |
416 } | |
417 | |
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418 ssize_t net_transmit(int fd, const void *data, size_t len) |
0 | 419 { |
183
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420 ssize_t ret; |
0 | 421 |
422 i_assert(fd >= 0); | |
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423 i_assert(len <= SSIZE_T_MAX); |
0 | 424 |
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83ae914a583a
added t_strdup_noconst() which can be used instead of (char *) t_strdup().
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425 ret = send(fd, data, len, 0); |
781
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426 if (ret == -1 && (errno == EINTR || errno == EAGAIN)) |
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427 return 0; |
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428 |
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429 if (errno == EPIPE) |
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430 return -2; |
0 | 431 |
432 return ret; | |
433 } | |
434 | |
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Changed ips_count to unsigned int in net_gethostbyname(). Also removed
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435 int net_gethostbyname(const char *addr, struct ip_addr **ips, |
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Changed ips_count to unsigned int in net_gethostbyname(). Also removed
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436 unsigned int *ips_count) |
0 | 437 { |
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Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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|
438 /* @UNSAFE */ |
0 | 439 #ifdef HAVE_IPV6 |
440 union sockaddr_union *so; | |
441 struct addrinfo hints, *ai, *origai; | |
442 int host_error; | |
443 #else | |
444 struct hostent *hp; | |
445 #endif | |
446 int count; | |
447 | |
448 *ips = NULL; | |
449 *ips_count = 0; | |
450 | |
451 #ifdef HAVE_IPV6 | |
452 memset(&hints, 0, sizeof(struct addrinfo)); | |
453 hints.ai_socktype = SOCK_STREAM; | |
454 | |
455 /* save error to host_error for later use */ | |
456 host_error = getaddrinfo(addr, NULL, &hints, &ai); | |
457 if (host_error != 0) | |
458 return host_error; | |
459 | |
460 /* get number of IPs */ | |
461 origai = ai; | |
462 for (count = 0; ai != NULL; ai = ai->ai_next) | |
463 count++; | |
464 | |
465 *ips_count = count; | |
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466 *ips = t_malloc(sizeof(struct ip_addr) * count); |
0 | 467 |
468 count = 0; | |
469 for (ai = origai; ai != NULL; ai = ai->ai_next, count++) { | |
470 so = (union sockaddr_union *) ai->ai_addr; | |
471 | |
2113
c5817f302aa6
net_gethostbyname() was broken with IPv6 enabled (wasn't really used with
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472 sin_get_ip(so, &(*ips)[count]); |
0 | 473 } |
474 freeaddrinfo(origai); | |
475 #else | |
476 hp = gethostbyname(addr); | |
477 if (hp == NULL) | |
478 return h_errno; | |
479 | |
480 /* get number of IPs */ | |
481 count = 0; | |
482 while (hp->h_addr_list[count] != NULL) | |
483 count++; | |
484 | |
485 *ips_count = count; | |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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486 *ips = t_malloc(sizeof(struct ip_addr) * count); |
0 | 487 |
488 while (count > 0) { | |
489 count--; | |
490 | |
491 (*ips)[count].family = AF_INET; | |
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74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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492 memcpy(&(*ips)[count].u.ip4, hp->h_addr_list[count], |
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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493 sizeof((*ips)[count].u.ip4)); |
0 | 494 } |
495 #endif | |
496 | |
497 return 0; | |
498 } | |
499 | |
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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500 int net_getsockname(int fd, struct ip_addr *addr, unsigned int *port) |
0 | 501 { |
502 union sockaddr_union so; | |
503 socklen_t addrlen; | |
504 | |
505 i_assert(fd >= 0); | |
506 | |
507 addrlen = sizeof(so); | |
4018
989dd95aa8b9
Enable -Wstrict-aliasing=2 warning and fixed a couple of warnings it gave.
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508 if (getsockname(fd, &so.sa, &addrlen) == -1) |
0 | 509 return -1; |
510 | |
511 if (addr != NULL) sin_get_ip(&so, addr); | |
512 if (port != NULL) *port = sin_get_port(&so); | |
513 | |
514 return 0; | |
515 } | |
516 | |
2098 | 517 int net_getpeername(int fd, struct ip_addr *addr, unsigned int *port) |
518 { | |
519 union sockaddr_union so; | |
520 socklen_t addrlen; | |
521 | |
522 i_assert(fd >= 0); | |
523 | |
524 addrlen = sizeof(so); | |
4018
989dd95aa8b9
Enable -Wstrict-aliasing=2 warning and fixed a couple of warnings it gave.
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525 if (getpeername(fd, &so.sa, &addrlen) == -1) |
2098 | 526 return -1; |
527 | |
528 if (addr != NULL) sin_get_ip(&so, addr); | |
529 if (port != NULL) *port = sin_get_port(&so); | |
530 | |
531 return 0; | |
532 } | |
533 | |
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8c28289a15a1
s/host/addr/ in a few network functions
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534 const char *net_ip2addr(const struct ip_addr *ip) |
0 | 535 { |
536 #ifdef HAVE_IPV6 | |
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s/host/addr/ in a few network functions
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537 char addr[MAX_IP_LEN+1]; |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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538 |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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539 addr[MAX_IP_LEN] = '\0'; |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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540 if (inet_ntop(ip->family, &ip->u.ip6, addr, MAX_IP_LEN) == NULL) |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
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changeset
|
541 return NULL; |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
781
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changeset
|
542 |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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543 return t_strdup(addr); |
0 | 544 #else |
545 unsigned long ip4; | |
546 | |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
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diff
changeset
|
547 if (ip->family != AF_INET) |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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changeset
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548 return NULL; |
0 | 549 |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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parents:
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550 ip4 = ntohl(ip->u.ip4.s_addr); |
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
781
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changeset
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551 return t_strdup_printf("%lu.%lu.%lu.%lu", |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
781
diff
changeset
|
552 (ip4 & 0xff000000UL) >> 24, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
781
diff
changeset
|
553 (ip4 & 0x00ff0000) >> 16, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
781
diff
changeset
|
554 (ip4 & 0x0000ff00) >> 8, |
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
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changeset
|
555 (ip4 & 0x000000ff)); |
0 | 556 #endif |
557 } | |
558 | |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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559 int net_addr2ip(const char *addr, struct ip_addr *ip) |
0 | 560 { |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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561 if (strchr(addr, ':') != NULL) { |
0 | 562 /* IPv6 */ |
563 ip->family = AF_INET6; | |
564 #ifdef HAVE_IPV6 | |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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parents:
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changeset
|
565 if (inet_pton(AF_INET6, addr, &ip->u.ip6) == 0) |
0 | 566 return -1; |
567 #else | |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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568 ip->u.ip4.s_addr = 0; |
0 | 569 #endif |
570 } else { | |
571 /* IPv4 */ | |
572 ip->family = AF_INET; | |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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parents:
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diff
changeset
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573 if (inet_aton(addr, &ip->u.ip4) == 0) |
0 | 574 return -1; |
575 } | |
576 | |
577 return 0; | |
578 } | |
579 | |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
580 int net_ipv6_mapped_ipv4_convert(const struct ip_addr *src, |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
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diff
changeset
|
581 struct ip_addr *dest) |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
582 { |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
583 #ifdef HAVE_IPV6 |
4699
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
584 static uint8_t v4_prefix[] = |
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
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diff
changeset
|
585 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff }; |
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
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parents:
4684
diff
changeset
|
586 |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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diff
changeset
|
587 if (!IPADDR_IS_V6(src)) |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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diff
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|
588 return -1; |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
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5865
diff
changeset
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589 if (memcmp(src->u.ip6.s6_addr, v4_prefix, sizeof(v4_prefix)) != 0) |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
590 return -1; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
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diff
changeset
|
591 |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
592 dest->family = AF_INET; |
5984
74a6130211c2
Changed struct ip_addr to use union for ipv4/ipv6 structs so we don't have
Timo Sirainen <tss@iki.fi>
parents:
5865
diff
changeset
|
593 memcpy(&dest->u.ip6, &src->u.ip6.s6_addr[3*4], 4); |
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
594 return 0; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
595 #else |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
596 return -1; |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
597 #endif |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
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4018
diff
changeset
|
598 } |
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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diff
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|
599 |
0 | 600 int net_geterror(int fd) |
601 { | |
602 int data; | |
603 socklen_t len = sizeof(data); | |
604 | |
605 if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &data, &len) == -1) | |
606 return -1; | |
607 | |
608 return data; | |
609 } | |
610 | |
611 const char *net_gethosterror(int error) | |
612 { | |
613 #ifdef HAVE_IPV6 | |
614 i_assert(error != 0); | |
615 | |
616 return gai_strerror(error); | |
617 #else | |
618 switch (error) { | |
619 case HOST_NOT_FOUND: | |
620 return "Host not found"; | |
621 case NO_ADDRESS: | |
622 return "No IP address found for name"; | |
623 case NO_RECOVERY: | |
624 return "A non-recovable name server error occurred"; | |
625 case TRY_AGAIN: | |
626 return "A temporary error on an authoritative name server"; | |
627 } | |
628 | |
629 /* unknown error */ | |
630 return NULL; | |
631 #endif | |
632 } | |
633 | |
634 int net_hosterror_notfound(int error) | |
635 { | |
636 #ifdef HAVE_IPV6 | |
1915
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
637 #ifdef EAI_NODATA /* NODATA is depricated */ |
0 | 638 return error != 1 && (error == EAI_NONAME || error == EAI_NODATA); |
639 #else | |
1915
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
640 return error != 1 && (error == EAI_NONAME); |
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
641 #endif |
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
642 #else |
0 | 643 return error == HOST_NOT_FOUND || error == NO_ADDRESS; |
644 #endif | |
645 } | |
646 | |
2113
c5817f302aa6
net_gethostbyname() was broken with IPv6 enabled (wasn't really used with
Timo Sirainen <tss@iki.fi>
parents:
2098
diff
changeset
|
647 const char *net_getservbyport(unsigned short port) |
0 | 648 { |
649 struct servent *entry; | |
650 | |
349 | 651 entry = getservbyport(htons(port), "tcp"); |
0 | 652 return entry == NULL ? NULL : entry->s_name; |
653 } | |
654 | |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents:
3681
diff
changeset
|
655 bool is_ipv4_address(const char *addr) |
0 | 656 { |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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diff
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|
657 while (*addr != '\0') { |
8c28289a15a1
s/host/addr/ in a few network functions
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1268
diff
changeset
|
658 if (*addr != '.' && !i_isdigit(*addr)) |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
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659 return FALSE; |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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diff
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|
660 addr++; |
0 | 661 } |
662 | |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
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parents:
3681
diff
changeset
|
663 return TRUE; |
0 | 664 } |
665 | |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
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parents:
3681
diff
changeset
|
666 bool is_ipv6_address(const char *addr) |
0 | 667 { |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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diff
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|
668 while (*addr != '\0') { |
8c28289a15a1
s/host/addr/ in a few network functions
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1268
diff
changeset
|
669 if (*addr != ':' && !i_isxdigit(*addr)) |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
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diff
changeset
|
670 return FALSE; |
1485
8c28289a15a1
s/host/addr/ in a few network functions
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671 addr++; |
0 | 672 } |
673 | |
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
Timo Sirainen <tss@iki.fi>
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|
674 return TRUE; |
0 | 675 } |