2 * Copyright (C) 2006-2008 Stig Venaas <venaas@uninett.no>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
9 #include <sys/socket.h>
10 #include <netinet/in.h>
20 char *stringcopy(const char *s, int len) {
26 debug(DBG_ERR, "stringcopy: malloc failed");
32 void printfchars(char *prefixfmt, char *prefix, char *charfmt, char *chars, int len) {
34 unsigned char *s = (unsigned char *)chars;
36 printf(prefixfmt ? prefixfmt : "%s: ", prefix);
37 for (i = 0; i < len; i++)
38 printf(charfmt ? charfmt : "%c", s[i]);
42 void port_set(struct sockaddr *sa, uint16_t port) {
43 switch (sa->sa_family) {
45 ((struct sockaddr_in *)sa)->sin_port = htons(port);
48 ((struct sockaddr_in6 *)sa)->sin6_port = htons(port);
53 struct sockaddr *addr_copy(struct sockaddr *in) {
54 struct sockaddr *out = NULL;
56 switch (in->sa_family) {
58 out = malloc(sizeof(struct sockaddr_in));
60 memset(out, 0, sizeof(struct sockaddr_in));
61 ((struct sockaddr_in *)out)->sin_addr = ((struct sockaddr_in *)in)->sin_addr;
65 out = malloc(sizeof(struct sockaddr_in6));
67 memset(out, 0, sizeof(struct sockaddr_in6));
68 ((struct sockaddr_in6 *)out)->sin6_addr = ((struct sockaddr_in6 *)in)->sin6_addr;
72 out->sa_family = in->sa_family;
76 char *addr2string(struct sockaddr *addr) {
77 struct sockaddr_in6 *sa6;
78 struct sockaddr_in sa4;
79 static char addr_buf[2][INET6_ADDRSTRLEN];
82 if (addr->sa_family == AF_INET6) {
83 sa6 = (struct sockaddr_in6 *)addr;
84 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
85 memset(&sa4, 0, sizeof(sa4));
86 sa4.sin_family = AF_INET;
87 sa4.sin_port = sa6->sin6_port;
88 memcpy(&sa4.sin_addr, &sa6->sin6_addr.s6_addr[12], 4);
89 addr = (struct sockaddr *)&sa4;
92 if (getnameinfo(addr, SOCKADDRP_SIZE(addr), addr_buf[i], sizeof(addr_buf[i]),
93 NULL, 0, NI_NUMERICHOST)) {
94 debug(DBG_WARN, "getnameinfo failed");
95 return "getnameinfo_failed";
102 int connectport(int type, char *host, char *port) {
103 struct addrinfo hints, *res0, *res;
106 memset(&hints, 0, sizeof(hints));
107 hints.ai_socktype = type;
108 hints.ai_family = AF_UNSPEC;
110 if (getaddrinfo(host, port, &hints, &res0) != 0) {
111 debug(DBG_ERR, "connectport: can't resolve host %s port %s", host, port);
115 for (res = res0; res; res = res->ai_next) {
116 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
118 debug(DBG_WARN, "connectport: socket failed");
121 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
123 debug(DBG_WARN, "connectport: connect failed");
132 int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
134 struct addrinfo *res;
136 for (res = addrinfo; res; res = res->ai_next) {
137 if (family != AF_UNSPEC && family != res->ai_family)
139 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
141 debug(DBG_WARN, "bindtoaddr: socket failed");
145 setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
148 setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
150 if (!bind(s, res->ai_addr, res->ai_addrlen))
152 debug(DBG_WARN, "bindtoaddr: bind failed");
158 int connecttcp(struct addrinfo *addrinfo, struct addrinfo *src) {
160 struct addrinfo *res;
163 for (res = addrinfo; res; res = res->ai_next) {
164 s = bindtoaddr(src, res->ai_family, 1, 1);
166 debug(DBG_WARN, "connecttoserver: socket failed");
169 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
171 debug(DBG_WARN, "connecttoserver: connect failed");