| 59 | */ |
| 60 | #ifndef HAVE_GETADDRINFO |
| 61 | int getaddrinfo(const char *node, const char *service, |
| 62 | const struct addrinfo *hints, struct addrinfo **res) |
| 63 | { |
| 64 | struct addrinfo *p; |
| 65 | int ai_family, ai_socktype, ai_protocol, ai_flags; |
| 66 | |
| 67 | /* limitation: service must be non null */ |
| 68 | if (!service) |
| 69 | { |
| 70 | return -1; |
| 71 | } |
| 72 | |
| 73 | if (hints == NULL) |
| 74 | { |
| 75 | ai_family = AF_UNSPEC; |
| 76 | ai_socktype = 0; |
| 77 | ai_protocol = 0; |
| 78 | ai_flags = 0; |
| 79 | } |
| 80 | else |
| 81 | { |
| 82 | ai_family = hints->ai_family; |
| 83 | ai_socktype = hints->ai_socktype; |
| 84 | ai_protocol = hints->ai_protocol; |
| 85 | ai_flags = hints->ai_flags; |
| 86 | } |
| 87 | |
| 88 | /* limitation: this replacement function only for IPv4 */ |
| 89 | if (ai_family == AF_UNSPEC) |
| 90 | { |
| 91 | ai_family = AF_INET; |
| 92 | } |
| 93 | |
| 94 | if (ai_family != AF_INET) |
| 95 | { |
| 96 | return -1; |
| 97 | } |
| 98 | |
| 99 | p = calloc(1, sizeof(struct addrinfo)); |
| 100 | |
| 101 | if (!p) |
| 102 | { |
| 103 | return -1; |
| 104 | } |
| 105 | |
| 106 | memset(p, 0, sizeof(struct addrinfo)); |
| 107 | p->ai_family = ai_family; |
| 108 | p->ai_socktype = ai_socktype; |
| 109 | p->ai_protocol = ai_protocol; |
| 110 | p->ai_addrlen = sizeof(struct sockaddr_in); |
| 111 | p->ai_addr = calloc(1, p->ai_addrlen); |
| 112 | |
| 113 | if (!p->ai_addr) |
| 114 | { |
| 115 | free(p); |
| 116 | return -1; |
| 117 | } |
| 118 |
no outgoing calls