| 98 | #define SOCKINET(p) ((struct sockinet *)(void *)(p)) |
| 99 | |
| 100 | int |
| 101 | realhostname_sa(char *host, size_t hsize, struct sockaddr *addr, int addrlen) |
| 102 | { |
| 103 | int result, error; |
| 104 | char buf[NI_MAXHOST]; |
| 105 | #ifdef INET6 |
| 106 | struct sockaddr_in lsin; |
| 107 | #endif |
| 108 | |
| 109 | result = HOSTNAME_INVALIDADDR; |
| 110 | |
| 111 | #ifdef INET6 |
| 112 | /* IPv4 mapped IPv6 addr consideraton, specified in rfc2373. */ |
| 113 | if (addr->sa_family == AF_INET6 && |
| 114 | addrlen == sizeof(struct sockaddr_in6) && |
| 115 | IN6_IS_ADDR_V4MAPPED(&SOCKADDR_IN6(addr)->sin6_addr)) { |
| 116 | struct sockaddr_in6 *sin6; |
| 117 | |
| 118 | sin6 = SOCKADDR_IN6(addr); |
| 119 | |
| 120 | memset(&lsin, 0, sizeof(lsin)); |
| 121 | lsin.sin_len = sizeof(struct sockaddr_in); |
| 122 | lsin.sin_family = AF_INET; |
| 123 | lsin.sin_port = sin6->sin6_port; |
| 124 | memcpy(&lsin.sin_addr, &sin6->sin6_addr.s6_addr[12], |
| 125 | sizeof(struct in_addr)); |
| 126 | addr = (struct sockaddr *)&lsin; |
| 127 | addrlen = lsin.sin_len; |
| 128 | } |
| 129 | #endif |
| 130 | |
| 131 | error = getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0, |
| 132 | NI_NAMEREQD); |
| 133 | if (error == 0) { |
| 134 | struct addrinfo hints, *res, *ores; |
| 135 | struct sockaddr *sa; |
| 136 | |
| 137 | memset(&hints, 0, sizeof(struct addrinfo)); |
| 138 | hints.ai_family = addr->sa_family; |
| 139 | hints.ai_flags = AI_CANONNAME | AI_PASSIVE; |
| 140 | hints.ai_socktype = SOCK_STREAM; |
| 141 | |
| 142 | error = getaddrinfo(buf, NULL, &hints, &res); |
| 143 | if (error) { |
| 144 | result = HOSTNAME_INVALIDNAME; |
| 145 | goto numeric; |
| 146 | } |
| 147 | for (ores = res; ; res = res->ai_next) { |
| 148 | if (res == NULL) { |
| 149 | freeaddrinfo(ores); |
| 150 | result = HOSTNAME_INCORRECTNAME; |
| 151 | goto numeric; |
| 152 | } |
| 153 | sa = res->ai_addr; |
| 154 | if (sa == NULL) { |
| 155 | freeaddrinfo(ores); |
| 156 | result = HOSTNAME_INCORRECTNAME; |
| 157 | goto numeric; |
nothing calls this directly
no test coverage detected