Mercurial > dovecot > core-2.2
annotate src/lib/network.c @ 5865:22b300677807 HEAD
Added net_ip_hash().
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Mon, 02 Jul 2007 23:11:46 +0300 |
| parents | e383a6b4f4da |
| children | 74a6130211c2 |
| rev | line source |
|---|---|
|
3621
3ae2df67459c
Added fd_set_nonblock() and changed net_set_nonblock() to use it.
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|
1 /* Copyright (c) 1999-2005 Timo Sirainen */ |
| 0 | 2 |
| 3 #include "lib.h" | |
|
4011
323c09be5f00
Moved dupliated close_save_errno() code to public close_keep_errno() function.
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4 #include "close-keep-errno.h" |
|
3621
3ae2df67459c
Added fd_set_nonblock() and changed net_set_nonblock() to use it.
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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 | |
|
3863
55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
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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 | |
| 35 if (ip1->family == AF_INET6) | |
| 36 return memcmp(&ip1->ip, &ip2->ip, sizeof(ip1->ip)) == 0; | |
| 37 #endif | |
| 38 | |
| 39 return memcmp(&ip1->ip, &ip2->ip, 4) == 0; | |
| 40 } | |
| 41 | |
| 5865 | 42 unsigned int net_ip_hash(const struct ip_addr *ip) |
| 43 { | |
| 44 const unsigned char *p = (const unsigned char *)&ip->ip; | |
| 45 unsigned int len, g, h = 0; | |
| 46 | |
| 47 #ifdef HAVE_IPV6 | |
| 48 if (ip->family == AF_INET6) | |
| 49 len = sizeof(ip->ip); | |
| 50 else | |
| 51 #endif | |
| 52 len = 4; | |
| 53 | |
| 54 for (; len > 0; len--, p++) { | |
| 55 h = (h << 4) + *p; | |
| 56 if ((g = h & 0xf0000000UL)) { | |
| 57 h = h ^ (g >> 24); | |
| 58 h = h ^ g; | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 return h; | |
| 63 } | |
| 0 | 64 |
| 65 /* copy IP to sockaddr */ | |
|
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fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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66 static inline void |
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67 sin_set_ip(union sockaddr_union *so, const struct ip_addr *ip) |
| 0 | 68 { |
| 69 if (ip == NULL) { | |
| 70 #ifdef HAVE_IPV6 | |
| 71 so->sin6.sin6_family = AF_INET6; | |
| 72 so->sin6.sin6_addr = in6addr_any; | |
| 73 #else | |
| 74 so->sin.sin_family = AF_INET; | |
| 75 so->sin.sin_addr.s_addr = INADDR_ANY; | |
| 76 #endif | |
| 77 return; | |
| 78 } | |
| 79 | |
| 80 so->sin.sin_family = ip->family; | |
| 81 #ifdef HAVE_IPV6 | |
| 82 if (ip->family == AF_INET6) | |
| 83 memcpy(&so->sin6.sin6_addr, &ip->ip, sizeof(ip->ip)); | |
| 84 else | |
| 85 #endif | |
| 86 memcpy(&so->sin.sin_addr, &ip->ip, 4); | |
| 87 } | |
| 88 | |
|
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fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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89 static inline void |
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fd8888f6f037
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90 sin_get_ip(const union sockaddr_union *so, struct ip_addr *ip) |
| 0 | 91 { |
| 92 ip->family = so->sin.sin_family; | |
| 93 | |
| 94 #ifdef HAVE_IPV6 | |
| 95 if (ip->family == AF_INET6) | |
| 96 memcpy(&ip->ip, &so->sin6.sin6_addr, sizeof(ip->ip)); | |
| 97 else | |
| 98 #endif | |
|
3400
ddfa507bb74f
Don't return random data if net_getpeername() or net_getsockname() is used
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99 if (ip->family == AF_INET) |
| 0 | 100 memcpy(&ip->ip, &so->sin.sin_addr, 4); |
|
3400
ddfa507bb74f
Don't return random data if net_getpeername() or net_getsockname() is used
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101 else |
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Don't return random data if net_getpeername() or net_getsockname() is used
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102 memset(&ip->ip, 0, sizeof(ip->ip)); |
| 0 | 103 } |
| 104 | |
| 349 | 105 static inline void sin_set_port(union sockaddr_union *so, unsigned int port) |
| 0 | 106 { |
| 107 #ifdef HAVE_IPV6 | |
| 108 if (so->sin.sin_family == AF_INET6) | |
| 109 so->sin6.sin6_port = htons((unsigned short) port); | |
| 110 else | |
| 111 #endif | |
| 112 so->sin.sin_port = htons((unsigned short) port); | |
| 113 } | |
| 114 | |
| 349 | 115 static inline unsigned int sin_get_port(union sockaddr_union *so) |
| 0 | 116 { |
| 117 #ifdef HAVE_IPV6 | |
| 118 if (so->sin.sin_family == AF_INET6) | |
| 119 return ntohs(so->sin6.sin6_port); | |
| 120 #endif | |
|
3400
ddfa507bb74f
Don't return random data if net_getpeername() or net_getsockname() is used
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121 if (so->sin.sin_family == AF_INET) |
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ddfa507bb74f
Don't return random data if net_getpeername() or net_getsockname() is used
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122 return ntohs(so->sin.sin_port); |
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Don't return random data if net_getpeername() or net_getsockname() is used
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123 |
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124 return 0; |
| 0 | 125 } |
| 126 | |
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fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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127 int net_connect_ip(const struct ip_addr *ip, unsigned int port, |
|
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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128 const struct ip_addr *my_ip) |
| 0 | 129 { |
| 130 union sockaddr_union so; | |
| 131 int fd, ret, opt = 1; | |
| 132 | |
| 133 if (my_ip != NULL && ip->family != my_ip->family) { | |
| 134 i_warning("net_connect_ip(): ip->family != my_ip->family"); | |
| 135 my_ip = NULL; | |
| 136 } | |
| 137 | |
| 138 /* create the socket */ | |
| 139 memset(&so, 0, sizeof(so)); | |
| 140 so.sin.sin_family = ip->family; | |
| 141 fd = socket(ip->family, SOCK_STREAM, 0); | |
| 142 | |
|
3523
d1ed3b3548db
Added some more error messages. Also if net_connect_ip() gives my_ip
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143 if (fd == -1) { |
|
d1ed3b3548db
Added some more error messages. Also if net_connect_ip() gives my_ip
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144 i_error("socket() failed: %m"); |
| 0 | 145 return -1; |
|
3523
d1ed3b3548db
Added some more error messages. Also if net_connect_ip() gives my_ip
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146 } |
| 0 | 147 |
| 148 /* set socket options */ | |
| 149 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
| 150 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
|
2639
a307ddd22a3a
net_connect() should be nonblocking (currently unused in Dovecot)
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151 net_set_nonblock(fd, TRUE); |
| 0 | 152 |
| 153 /* set our own address */ | |
| 154 if (my_ip != NULL) { | |
| 155 sin_set_ip(&so, my_ip); | |
| 156 if (bind(fd, &so.sa, SIZEOF_SOCKADDR(so)) == -1) { | |
| 157 /* failed, set it back to INADDR_ANY */ | |
|
3523
d1ed3b3548db
Added some more error messages. Also if net_connect_ip() gives my_ip
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158 i_error("bind(%s) failed: %m", net_ip2addr(my_ip)); |
|
4011
323c09be5f00
Moved dupliated close_save_errno() code to public close_keep_errno() function.
Timo Sirainen <timo.sirainen@movial.fi>
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3863
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159 close_keep_errno(fd); |
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3523
d1ed3b3548db
Added some more error messages. Also if net_connect_ip() gives my_ip
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160 return -1; |
| 0 | 161 } |
| 162 } | |
| 163 | |
| 164 /* connect */ | |
| 165 sin_set_ip(&so, ip); | |
| 166 sin_set_port(&so, port); | |
| 167 ret = connect(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
| 168 | |
| 169 #ifndef WIN32 | |
| 170 if (ret < 0 && errno != EINPROGRESS) | |
| 171 #else | |
| 172 if (ret < 0 && WSAGetLastError() != WSAEWOULDBLOCK) | |
| 173 #endif | |
| 174 { | |
|
4011
323c09be5f00
Moved dupliated close_save_errno() code to public close_keep_errno() function.
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175 close_keep_errno(fd); |
| 0 | 176 return -1; |
| 177 } | |
| 178 | |
| 179 return fd; | |
| 180 } | |
| 181 | |
| 182 int net_connect_unix(const char *path) | |
| 183 { | |
| 184 struct sockaddr_un sa; | |
| 185 int fd, ret; | |
| 186 | |
|
807
35abd7a5d381
Buffer related cleanups. Use PATH_MAX instead of hardcoded 1024 for paths.
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187 memset(&sa, 0, sizeof(sa)); |
|
35abd7a5d381
Buffer related cleanups. Use PATH_MAX instead of hardcoded 1024 for paths.
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188 sa.sun_family = AF_UNIX; |
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35abd7a5d381
Buffer related cleanups. Use PATH_MAX instead of hardcoded 1024 for paths.
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189 if (strocpy(sa.sun_path, path, sizeof(sa.sun_path)) < 0) { |
| 0 | 190 /* too long path */ |
| 191 errno = EINVAL; | |
| 192 return -1; | |
| 193 } | |
| 194 | |
| 195 /* create the socket */ | |
| 196 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
|
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Added some more error messages. Also if net_connect_ip() gives my_ip
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197 if (fd == -1) { |
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Added some more error messages. Also if net_connect_ip() gives my_ip
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198 i_error("socket(%s) failed: %m", path); |
| 0 | 199 return -1; |
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Added some more error messages. Also if net_connect_ip() gives my_ip
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200 } |
| 0 | 201 |
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3076
8d15fea729c2
Use nonblocking connecting for unix sockets.
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202 net_set_nonblock(fd, TRUE); |
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Use nonblocking connecting for unix sockets.
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203 |
| 0 | 204 /* connect */ |
|
4018
989dd95aa8b9
Enable -Wstrict-aliasing=2 warning and fixed a couple of warnings it gave.
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205 ret = connect(fd, (void *)&sa, sizeof(sa)); |
| 0 | 206 if (ret < 0 && errno != EINPROGRESS) { |
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323c09be5f00
Moved dupliated close_save_errno() code to public close_keep_errno() function.
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207 close_keep_errno(fd); |
| 0 | 208 return -1; |
| 209 } | |
| 210 | |
| 211 return fd; | |
| 212 } | |
| 213 | |
| 214 void net_disconnect(int fd) | |
| 215 { | |
|
388
792fc5b3daa4
Send error message if close() fails in net_disconnect().
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216 if (close(fd) < 0) |
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792fc5b3daa4
Send error message if close() fails in net_disconnect().
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217 i_error("net_disconnect() failed: %m"); |
| 0 | 218 } |
| 219 | |
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55df57c028d4
Added "bool" type and changed all ints that were used as booleans to bool.
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220 void net_set_nonblock(int fd, bool nonblock) |
| 0 | 221 { |
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3621
3ae2df67459c
Added fd_set_nonblock() and changed net_set_nonblock() to use it.
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222 if (fd_set_nonblock(fd, nonblock) < 0) |
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3ae2df67459c
Added fd_set_nonblock() and changed net_set_nonblock() to use it.
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223 i_fatal("fd_set_nonblock(%d) failed: %m", fd); |
| 0 | 224 } |
| 225 | |
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226 int net_set_cork(int fd __attr_unused__, bool cork __attr_unused__) |
| 0 | 227 { |
| 228 #ifdef TCP_CORK | |
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229 int val = cork; |
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230 |
|
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231 return setsockopt(fd, IPPROTO_TCP, TCP_CORK, &val, sizeof(val)); |
|
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Split IOBuffer into mmaped IBuffer, file IBuffer, memory data IBuffer and
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232 #else |
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233 errno = ENOPROTOOPT; |
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234 return -1; |
| 0 | 235 #endif |
| 236 } | |
| 237 | |
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Naming style changes, finally got tired of most of the typedefs. Also the
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238 void net_get_ip_any4(struct ip_addr *ip) |
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imap_listen and imaps_listen accepts now "*" as "all IPv4 interfaces" and
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239 { |
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240 struct in_addr *in_ip = (struct in_addr *) &ip->ip; |
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241 |
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242 ip->family = AF_INET; |
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243 in_ip->s_addr = INADDR_ANY; |
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244 } |
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245 |
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246 void net_get_ip_any6(struct ip_addr *ip) |
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247 { |
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248 #ifdef HAVE_IPV6 |
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249 ip->family = AF_INET6; |
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250 ip->ip = in6addr_any; |
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251 #else |
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252 memset(ip, 0, sizeof(struct ip_addr)); |
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253 #endif |
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254 } |
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255 |
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Added backlog parameter for net_listen*().
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256 int net_listen(const struct ip_addr *my_ip, unsigned int *port, int backlog) |
| 0 | 257 { |
| 258 union sockaddr_union so; | |
| 259 int ret, fd, opt = 1; | |
| 260 socklen_t len; | |
| 261 | |
| 262 memset(&so, 0, sizeof(so)); | |
| 263 sin_set_port(&so, *port); | |
| 264 sin_set_ip(&so, my_ip); | |
| 265 | |
| 266 /* create the socket */ | |
| 267 fd = socket(so.sin.sin_family, SOCK_STREAM, 0); | |
| 268 #ifdef HAVE_IPV6 | |
| 269 if (fd == -1 && (errno == EINVAL || errno == EAFNOSUPPORT)) { | |
| 270 /* IPv6 is not supported by OS */ | |
| 271 so.sin.sin_family = AF_INET; | |
| 272 so.sin.sin_addr.s_addr = INADDR_ANY; | |
| 273 | |
| 274 fd = socket(AF_INET, SOCK_STREAM, 0); | |
| 275 } | |
| 276 #endif | |
|
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277 if (fd == -1) { |
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278 i_error("socket() failed: %m"); |
| 0 | 279 return -1; |
|
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280 } |
| 0 | 281 |
| 282 /* set socket options */ | |
| 283 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); | |
| 284 setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &opt, sizeof(opt)); | |
| 285 | |
|
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286 /* if using IPv6, bind both on the IPv4 and IPv6 addresses */ |
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287 #ifdef IPV6_V6ONLY |
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288 if (so.sin.sin_family == AF_INET6) { |
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289 opt = 0; |
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290 setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof(opt)); |
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291 } |
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292 #endif |
| 0 | 293 /* specify the address/port we want to listen in */ |
| 294 ret = bind(fd, &so.sa, SIZEOF_SOCKADDR(so)); | |
|
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295 if (ret < 0) { |
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296 if (errno != EADDRINUSE) { |
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297 i_error("bind(%s, %u) failed: %m", |
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298 net_ip2addr(my_ip), *port); |
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299 } |
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300 } else { |
| 0 | 301 /* get the actual port we started listen */ |
| 302 len = SIZEOF_SOCKADDR(so); | |
| 303 ret = getsockname(fd, &so.sa, &len); | |
| 304 if (ret >= 0) { | |
| 305 *port = sin_get_port(&so); | |
| 306 | |
| 307 /* start listening */ | |
|
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308 if (listen(fd, backlog) >= 0) |
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309 return fd; |
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310 |
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311 if (errno != EADDRINUSE) |
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312 i_error("listen() failed: %m"); |
| 0 | 313 } |
| 314 } | |
| 315 | |
| 316 /* error */ | |
|
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317 close_keep_errno(fd); |
| 0 | 318 return -1; |
| 319 } | |
| 320 | |
|
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321 int net_listen_unix(const char *path, int backlog) |
| 0 | 322 { |
| 323 struct sockaddr_un sa; | |
| 324 int fd; | |
| 325 | |
|
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326 memset(&sa, 0, sizeof(sa)); |
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327 sa.sun_family = AF_UNIX; |
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328 if (strocpy(sa.sun_path, path, sizeof(sa.sun_path)) < 0) { |
| 0 | 329 /* too long path */ |
| 330 errno = EINVAL; | |
| 331 return -1; | |
| 332 } | |
| 333 | |
| 334 /* create the socket */ | |
| 335 fd = socket(PF_UNIX, SOCK_STREAM, 0); | |
|
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336 if (fd == -1) { |
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337 i_error("socket() failed: %m"); |
| 0 | 338 return -1; |
|
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339 } |
| 0 | 340 |
| 341 /* bind */ | |
|
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342 if (bind(fd, (void *)&sa, sizeof(sa)) < 0) { |
|
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343 if (errno != EADDRINUSE) |
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344 i_error("bind(%s) failed: %m", path); |
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345 } else { |
| 0 | 346 /* start listening */ |
|
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347 if (listen(fd, backlog) == 0) |
| 0 | 348 return fd; |
|
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349 |
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350 if (errno != EADDRINUSE) |
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351 i_error("listen() failed: %m"); |
| 0 | 352 } |
| 353 | |
|
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Moved dupliated close_save_errno() code to public close_keep_errno() function.
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354 close_keep_errno(fd); |
| 0 | 355 return -1; |
| 356 } | |
| 357 | |
|
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358 int net_accept(int fd, struct ip_addr *addr, unsigned int *port) |
| 0 | 359 { |
| 360 union sockaddr_union so; | |
| 361 int ret; | |
| 362 socklen_t addrlen; | |
| 363 | |
| 364 i_assert(fd >= 0); | |
| 365 | |
| 366 addrlen = sizeof(so); | |
| 367 ret = accept(fd, &so.sa, &addrlen); | |
| 368 | |
|
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369 if (ret < 0) { |
|
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370 if (errno == EAGAIN || errno == ECONNABORTED) |
|
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371 return -1; |
|
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372 else |
|
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373 return -2; |
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374 } |
| 0 | 375 |
| 376 if (addr != NULL) sin_get_ip(&so, addr); | |
| 377 if (port != NULL) *port = sin_get_port(&so); | |
| 378 | |
| 379 return ret; | |
| 380 } | |
| 381 | |
|
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382 ssize_t net_receive(int fd, void *buf, size_t len) |
| 0 | 383 { |
|
183
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384 ssize_t ret; |
| 0 | 385 |
| 386 i_assert(fd >= 0); | |
|
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387 i_assert(len <= SSIZE_T_MAX); |
| 0 | 388 |
|
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Use read() instead of recv() in net_receive(), so it works even with
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389 ret = read(fd, buf, len); |
|
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390 if (ret == 0) { |
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391 /* disconnected */ |
|
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392 errno = 0; |
|
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393 return -2; |
|
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394 } |
| 0 | 395 |
|
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396 if (ret < 0) { |
|
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397 if (errno == EINTR || errno == EAGAIN) |
|
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398 return 0; |
|
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399 |
|
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net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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400 if (errno == ECONNRESET || errno == ETIMEDOUT) { |
|
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net_receive, net_transmit: Return -2 for regular disconnection errors. Don't
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401 /* treat as disconnection */ |
|
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402 return -2; |
|
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403 } |
|
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404 } |
| 0 | 405 |
| 406 return ret; | |
| 407 } | |
| 408 | |
|
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size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more
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409 ssize_t net_transmit(int fd, const void *data, size_t len) |
| 0 | 410 { |
|
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411 ssize_t ret; |
| 0 | 412 |
| 413 i_assert(fd >= 0); | |
|
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414 i_assert(len <= SSIZE_T_MAX); |
| 0 | 415 |
|
64
83ae914a583a
added t_strdup_noconst() which can be used instead of (char *) t_strdup().
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|
416 ret = send(fd, data, len, 0); |
|
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417 if (ret == -1 && (errno == EINTR || errno == EAGAIN)) |
|
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418 return 0; |
|
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419 |
|
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420 if (errno == EPIPE) |
|
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|
421 return -2; |
| 0 | 422 |
| 423 return ret; | |
| 424 } | |
| 425 | |
|
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7ee0bb1b2d97
Changed ips_count to unsigned int in net_gethostbyname(). Also removed
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|
426 int net_gethostbyname(const char *addr, struct ip_addr **ips, |
|
7ee0bb1b2d97
Changed ips_count to unsigned int in net_gethostbyname(). Also removed
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|
427 unsigned int *ips_count) |
| 0 | 428 { |
|
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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|
429 /* @UNSAFE */ |
| 0 | 430 #ifdef HAVE_IPV6 |
| 431 union sockaddr_union *so; | |
| 432 struct addrinfo hints, *ai, *origai; | |
| 433 int host_error; | |
| 434 #else | |
| 435 struct hostent *hp; | |
| 436 #endif | |
| 437 int count; | |
| 438 | |
| 439 *ips = NULL; | |
| 440 *ips_count = 0; | |
| 441 | |
| 442 #ifdef HAVE_IPV6 | |
| 443 memset(&hints, 0, sizeof(struct addrinfo)); | |
| 444 hints.ai_socktype = SOCK_STREAM; | |
| 445 | |
| 446 /* save error to host_error for later use */ | |
| 447 host_error = getaddrinfo(addr, NULL, &hints, &ai); | |
| 448 if (host_error != 0) | |
| 449 return host_error; | |
| 450 | |
| 451 /* get number of IPs */ | |
| 452 origai = ai; | |
| 453 for (count = 0; ai != NULL; ai = ai->ai_next) | |
| 454 count++; | |
| 455 | |
| 456 *ips_count = count; | |
|
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Naming style changes, finally got tired of most of the typedefs. Also the
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|
457 *ips = t_malloc(sizeof(struct ip_addr) * count); |
| 0 | 458 |
| 459 count = 0; | |
| 460 for (ai = origai; ai != NULL; ai = ai->ai_next, count++) { | |
| 461 so = (union sockaddr_union *) ai->ai_addr; | |
| 462 | |
|
2113
c5817f302aa6
net_gethostbyname() was broken with IPv6 enabled (wasn't really used with
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|
463 sin_get_ip(so, &(*ips)[count]); |
| 0 | 464 } |
| 465 freeaddrinfo(origai); | |
| 466 #else | |
| 467 hp = gethostbyname(addr); | |
| 468 if (hp == NULL) | |
| 469 return h_errno; | |
| 470 | |
| 471 /* get number of IPs */ | |
| 472 count = 0; | |
| 473 while (hp->h_addr_list[count] != NULL) | |
| 474 count++; | |
| 475 | |
| 476 *ips_count = count; | |
|
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Naming style changes, finally got tired of most of the typedefs. Also the
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|
477 *ips = t_malloc(sizeof(struct ip_addr) * count); |
| 0 | 478 |
| 479 while (count > 0) { | |
| 480 count--; | |
| 481 | |
| 482 (*ips)[count].family = AF_INET; | |
| 483 memcpy(&(*ips)[count].ip, hp->h_addr_list[count], 4); | |
| 484 } | |
| 485 #endif | |
| 486 | |
| 487 return 0; | |
| 488 } | |
| 489 | |
|
903
fd8888f6f037
Naming style changes, finally got tired of most of the typedefs. Also the
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|
490 int net_getsockname(int fd, struct ip_addr *addr, unsigned int *port) |
| 0 | 491 { |
| 492 union sockaddr_union so; | |
| 493 socklen_t addrlen; | |
| 494 | |
| 495 i_assert(fd >= 0); | |
| 496 | |
| 497 addrlen = sizeof(so); | |
|
4018
989dd95aa8b9
Enable -Wstrict-aliasing=2 warning and fixed a couple of warnings it gave.
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|
498 if (getsockname(fd, &so.sa, &addrlen) == -1) |
| 0 | 499 return -1; |
| 500 | |
| 501 if (addr != NULL) sin_get_ip(&so, addr); | |
| 502 if (port != NULL) *port = sin_get_port(&so); | |
| 503 | |
| 504 return 0; | |
| 505 } | |
| 506 | |
| 2098 | 507 int net_getpeername(int fd, struct ip_addr *addr, unsigned int *port) |
| 508 { | |
| 509 union sockaddr_union so; | |
| 510 socklen_t addrlen; | |
| 511 | |
| 512 i_assert(fd >= 0); | |
| 513 | |
| 514 addrlen = sizeof(so); | |
|
4018
989dd95aa8b9
Enable -Wstrict-aliasing=2 warning and fixed a couple of warnings it gave.
Timo Sirainen <tss@iki.fi>
parents:
4011
diff
changeset
|
515 if (getpeername(fd, &so.sa, &addrlen) == -1) |
| 2098 | 516 return -1; |
| 517 | |
| 518 if (addr != NULL) sin_get_ip(&so, addr); | |
| 519 if (port != NULL) *port = sin_get_port(&so); | |
| 520 | |
| 521 return 0; | |
| 522 } | |
| 523 | |
|
1485
8c28289a15a1
s/host/addr/ in a few network functions
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parents:
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|
524 const char *net_ip2addr(const struct ip_addr *ip) |
| 0 | 525 { |
| 526 #ifdef HAVE_IPV6 | |
|
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s/host/addr/ in a few network functions
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changeset
|
527 char addr[MAX_IP_LEN+1]; |
|
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
528 |
|
1485
8c28289a15a1
s/host/addr/ in a few network functions
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529 addr[MAX_IP_LEN] = '\0'; |
|
8c28289a15a1
s/host/addr/ in a few network functions
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diff
changeset
|
530 if (inet_ntop(ip->family, &ip->ip, addr, MAX_IP_LEN) == NULL) |
|
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
531 return NULL; |
|
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
532 |
|
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
533 return t_strdup(addr); |
| 0 | 534 #else |
| 535 unsigned long ip4; | |
| 536 | |
|
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
537 if (ip->family != AF_INET) |
|
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
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parents:
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diff
changeset
|
538 return NULL; |
| 0 | 539 |
| 540 ip4 = ntohl(ip->ip.s_addr); | |
|
805
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
541 return t_strdup_printf("%lu.%lu.%lu.%lu", |
|
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
542 (ip4 & 0xff000000UL) >> 24, |
|
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
543 (ip4 & 0x00ff0000) >> 16, |
|
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
544 (ip4 & 0x0000ff00) >> 8, |
|
5ac361acb316
Marked all non-trivial buffer modifications with @UNSAFE tag. Several
Timo Sirainen <tss@iki.fi>
parents:
781
diff
changeset
|
545 (ip4 & 0x000000ff)); |
| 0 | 546 #endif |
| 547 } | |
| 548 | |
|
1485
8c28289a15a1
s/host/addr/ in a few network functions
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parents:
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diff
changeset
|
549 int net_addr2ip(const char *addr, struct ip_addr *ip) |
| 0 | 550 { |
|
1485
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s/host/addr/ in a few network functions
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changeset
|
551 if (strchr(addr, ':') != NULL) { |
| 0 | 552 /* IPv6 */ |
| 553 ip->family = AF_INET6; | |
| 554 #ifdef HAVE_IPV6 | |
|
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s/host/addr/ in a few network functions
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diff
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|
555 if (inet_pton(AF_INET6, addr, &ip->ip) == 0) |
| 0 | 556 return -1; |
| 557 #else | |
| 558 ip->ip.s_addr = 0; | |
| 559 #endif | |
| 560 } else { | |
| 561 /* IPv4 */ | |
| 562 ip->family = AF_INET; | |
|
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s/host/addr/ in a few network functions
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diff
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|
563 if (inet_aton(addr, (struct in_addr *) &ip->ip) == 0) |
| 0 | 564 return -1; |
| 565 } | |
| 566 | |
| 567 return 0; | |
| 568 } | |
| 569 | |
|
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
570 int net_ipv6_mapped_ipv4_convert(const struct ip_addr *src, |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
571 struct ip_addr *dest) |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
572 { |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
573 #ifdef HAVE_IPV6 |
|
4699
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
574 static uint8_t v4_prefix[] = |
|
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
575 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff }; |
|
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
576 |
|
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
577 if (!IPADDR_IS_V6(src)) |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
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parents:
4018
diff
changeset
|
578 return -1; |
|
4699
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
579 if (memcmp(src->ip.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
|
580 return -1; |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
581 |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
582 dest->family = AF_INET; |
|
4699
9e4cc68b71b2
Fix net_ipv6_mapped_ipv4_convert() to be actually portable.
Timo Sirainen <tss@iki.fi>
parents:
4684
diff
changeset
|
583 memcpy(&dest->ip, &src->ip.s6_addr[3*4], 4); |
|
4684
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
584 return 0; |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
585 #else |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
586 return -1; |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
587 #endif |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
4018
diff
changeset
|
588 } |
|
4f1df4b90500
Added net_ipv6_mapped_ipv4_convert().
Timo Sirainen <tss@iki.fi>
parents:
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diff
changeset
|
589 |
| 0 | 590 int net_geterror(int fd) |
| 591 { | |
| 592 int data; | |
| 593 socklen_t len = sizeof(data); | |
| 594 | |
| 595 if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &data, &len) == -1) | |
| 596 return -1; | |
| 597 | |
| 598 return data; | |
| 599 } | |
| 600 | |
| 601 const char *net_gethosterror(int error) | |
| 602 { | |
| 603 #ifdef HAVE_IPV6 | |
| 604 i_assert(error != 0); | |
| 605 | |
| 606 return gai_strerror(error); | |
| 607 #else | |
| 608 switch (error) { | |
| 609 case HOST_NOT_FOUND: | |
| 610 return "Host not found"; | |
| 611 case NO_ADDRESS: | |
| 612 return "No IP address found for name"; | |
| 613 case NO_RECOVERY: | |
| 614 return "A non-recovable name server error occurred"; | |
| 615 case TRY_AGAIN: | |
| 616 return "A temporary error on an authoritative name server"; | |
| 617 } | |
| 618 | |
| 619 /* unknown error */ | |
| 620 return NULL; | |
| 621 #endif | |
| 622 } | |
| 623 | |
| 624 int net_hosterror_notfound(int error) | |
| 625 { | |
| 626 #ifdef HAVE_IPV6 | |
|
1915
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
627 #ifdef EAI_NODATA /* NODATA is depricated */ |
| 0 | 628 return error != 1 && (error == EAI_NONAME || error == EAI_NODATA); |
| 629 #else | |
|
1915
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
630 return error != 1 && (error == EAI_NONAME); |
|
79790750c349
importing new index code. mbox still broken.
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parents:
1871
diff
changeset
|
631 #endif |
|
79790750c349
importing new index code. mbox still broken.
Timo Sirainen <tss@iki.fi>
parents:
1871
diff
changeset
|
632 #else |
| 0 | 633 return error == HOST_NOT_FOUND || error == NO_ADDRESS; |
| 634 #endif | |
| 635 } | |
| 636 | |
|
2113
c5817f302aa6
net_gethostbyname() was broken with IPv6 enabled (wasn't really used with
Timo Sirainen <tss@iki.fi>
parents:
2098
diff
changeset
|
637 const char *net_getservbyport(unsigned short port) |
| 0 | 638 { |
| 639 struct servent *entry; | |
| 640 | |
| 349 | 641 entry = getservbyport(htons(port), "tcp"); |
| 0 | 642 return entry == NULL ? NULL : entry->s_name; |
| 643 } | |
| 644 | |
|
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
|
645 bool is_ipv4_address(const char *addr) |
| 0 | 646 { |
|
1485
8c28289a15a1
s/host/addr/ in a few network functions
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parents:
1268
diff
changeset
|
647 while (*addr != '\0') { |
|
8c28289a15a1
s/host/addr/ in a few network functions
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parents:
1268
diff
changeset
|
648 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:
3681
diff
changeset
|
649 return FALSE; |
|
1485
8c28289a15a1
s/host/addr/ in a few network functions
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parents:
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diff
changeset
|
650 addr++; |
| 0 | 651 } |
| 652 | |
|
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
|
653 return TRUE; |
| 0 | 654 } |
| 655 | |
|
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
|
656 bool is_ipv6_address(const char *addr) |
| 0 | 657 { |
|
1485
8c28289a15a1
s/host/addr/ in a few network functions
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parents:
1268
diff
changeset
|
658 while (*addr != '\0') { |
|
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
659 if (*addr != ':' && !i_isxdigit(*addr)) |
|
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
|
660 return FALSE; |
|
1485
8c28289a15a1
s/host/addr/ in a few network functions
Timo Sirainen <tss@iki.fi>
parents:
1268
diff
changeset
|
661 addr++; |
| 0 | 662 } |
| 663 | |
|
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
|
664 return TRUE; |
| 0 | 665 } |