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 uint16_t port_get(struct sockaddr *sa) {
43 switch (sa->sa_family) {
45 return ntohs(((struct sockaddr_in *)sa)->sin_port);
47 return ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
52 void port_set(struct sockaddr *sa, uint16_t port) {
53 switch (sa->sa_family) {
55 ((struct sockaddr_in *)sa)->sin_port = htons(port);
58 ((struct sockaddr_in6 *)sa)->sin6_port = htons(port);
63 struct sockaddr *addr_copy(struct sockaddr *in) {
64 struct sockaddr *out = NULL;
66 switch (in->sa_family) {
68 out = malloc(sizeof(struct sockaddr_in));
70 memset(out, 0, sizeof(struct sockaddr_in));
71 ((struct sockaddr_in *)out)->sin_addr = ((struct sockaddr_in *)in)->sin_addr;
75 out = malloc(sizeof(struct sockaddr_in6));
77 memset(out, 0, sizeof(struct sockaddr_in6));
78 ((struct sockaddr_in6 *)out)->sin6_addr = ((struct sockaddr_in6 *)in)->sin6_addr;
82 out->sa_family = in->sa_family;
86 char *addr2string(struct sockaddr *addr) {
87 struct sockaddr_in6 *sa6;
88 struct sockaddr_in sa4;
89 static char addr_buf[2][INET6_ADDRSTRLEN];
92 if (addr->sa_family == AF_INET6) {
93 sa6 = (struct sockaddr_in6 *)addr;
94 if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
95 memset(&sa4, 0, sizeof(sa4));
96 sa4.sin_family = AF_INET;
97 sa4.sin_port = sa6->sin6_port;
98 memcpy(&sa4.sin_addr, &sa6->sin6_addr.s6_addr[12], 4);
99 addr = (struct sockaddr *)&sa4;
102 if (getnameinfo(addr, SOCKADDRP_SIZE(addr), addr_buf[i], sizeof(addr_buf[i]),
103 NULL, 0, NI_NUMERICHOST)) {
104 debug(DBG_WARN, "getnameinfo failed");
105 return "getnameinfo_failed";
110 int connectport(int type, char *host, char *port) {
111 struct addrinfo hints, *res0, *res;
114 memset(&hints, 0, sizeof(hints));
115 hints.ai_socktype = type;
116 hints.ai_family = AF_UNSPEC;
118 if (getaddrinfo(host, port, &hints, &res0) != 0) {
119 debug(DBG_ERR, "connectport: can't resolve host %s port %s", host, port);
123 for (res = res0; res; res = res->ai_next) {
124 s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
126 debug(DBG_WARN, "connectport: socket failed");
129 if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
131 debug(DBG_WARN, "connectport: connect failed");