2 * Functions for AF_ agnostic ipv4/ipv6 handling.
4 * (c) 2008 Florian Westphal <fw@strlen.de>, public domain.
13 #ifdef HAVE_GETADDRINFO
15 #include <sys/types.h>
18 #include "ng_ipaddr.h"
21 ng_ipaddr_init(ng_ipaddr_t *addr, const char *ip_str, UINT16 port)
23 #ifdef HAVE_GETADDRINFO
26 struct addrinfo *res0;
27 struct addrinfo hints = {
28 #ifndef WANT_IPV6 /* only accept v4 addresses */
31 .ai_flags = AI_NUMERICHOST
35 hints.ai_flags |= AI_PASSIVE;
37 /* silly, but ngircd stores UINT16 in server config, not string */
38 snprintf(portstr, sizeof(portstr), "%u", (unsigned int) port);
39 ret = getaddrinfo(ip_str, portstr, &hints, &res0);
44 assert(sizeof(*addr) >= res0->ai_addrlen);
45 if (sizeof(*addr) >= res0->ai_addrlen)
46 memcpy(addr, res0->ai_addr, res0->ai_addrlen);
51 #else /* HAVE_GETADDRINFO */
54 addr->sin4.sin_family = AF_INET;
55 # ifdef HAVE_INET_ATON
56 if (inet_aton(ip_str, &addr->sin4.sin_addr) == 0)
59 addr->sin4.sin_addr.s_addr = inet_addr(ip_str);
60 if (addr->sin4.sin_addr.s_addr == (unsigned) -1)
63 ng_ipaddr_setport(addr, port);
65 #endif /* HAVE_GETADDRINFO */
70 ng_ipaddr_setport(ng_ipaddr_t *a, UINT16 port)
79 assert(af == AF_INET || af == AF_INET6);
83 a->sin4.sin_port = htons(port);
86 a->sin6.sin6_port = htons(port);
91 assert(a->sin4.sin_family == AF_INET);
92 a->sin4.sin_port = htons(port);
93 #endif /* WANT_IPV6 */
99 ng_ipaddr_ipequal(const ng_ipaddr_t *a, const ng_ipaddr_t *b)
104 if (a->sa.sa_family != b->sa.sa_family)
106 assert(ng_ipaddr_salen(a) == ng_ipaddr_salen(b));
107 switch (a->sa.sa_family) {
109 return IN6_ARE_ADDR_EQUAL(&a->sin6.sin6_addr, &b->sin6.sin6_addr);
111 return memcmp(&a->sin4.sin_addr, &b->sin4.sin_addr, sizeof(a->sin4.sin_addr)) == 0;
115 assert(a->sin4.sin_family == AF_INET);
116 assert(b->sin4.sin_family == AF_INET);
117 return memcmp(&a->sin4.sin_addr, &b->sin4.sin_addr, sizeof(a->sin4.sin_addr)) == 0;
124 ng_ipaddr_tostr(const ng_ipaddr_t *addr)
126 static char strbuf[NG_INET_ADDRSTRLEN];
130 ng_ipaddr_tostr_r(addr, strbuf);
135 /* str must be at least NG_INET_ADDRSTRLEN bytes long */
137 ng_ipaddr_tostr_r(const ng_ipaddr_t *addr, char *str)
139 #ifdef HAVE_GETNAMEINFO
140 const struct sockaddr *sa = (const struct sockaddr *) addr;
145 ret = getnameinfo(sa, ng_ipaddr_salen(addr),
146 str, NG_INET_ADDRSTRLEN, NULL, 0, NI_NUMERICHOST);
149 * causes mis-interpretation of client host in e.g. /WHOIS
152 char tmp[NG_INET_ADDRSTRLEN] = "0";
153 ret = getnameinfo(sa, ng_ipaddr_salen(addr),
154 tmp+1, sizeof(tmp) -1, NULL, 0, NI_NUMERICHOST);
156 strlcpy(str, tmp, NG_INET_ADDRSTRLEN);
161 abort(); /* WANT_IPV6 depends on HAVE_GETNAMEINFO */
165 #endif /* WANT_IPV6 */