| 60 | extern char *f_inet, *f_addr; |
| 61 | |
| 62 | static void |
| 63 | in_status(int s __unused, const struct ifaddrs *ifa) |
| 64 | { |
| 65 | struct sockaddr_in *sin, null_sin; |
| 66 | #ifndef FSTACK |
| 67 | int error, n_flags; |
| 68 | #endif |
| 69 | |
| 70 | memset(&null_sin, 0, sizeof(null_sin)); |
| 71 | |
| 72 | sin = (struct sockaddr_in *)ifa->ifa_addr; |
| 73 | if (sin == NULL) |
| 74 | return; |
| 75 | |
| 76 | #ifndef FSTACK |
| 77 | if (f_addr != NULL && strcmp(f_addr, "fqdn") == 0) |
| 78 | n_flags = 0; |
| 79 | else if (f_addr != NULL && strcmp(f_addr, "host") == 0) |
| 80 | n_flags = NI_NOFQDN; |
| 81 | else |
| 82 | n_flags = NI_NUMERICHOST; |
| 83 | |
| 84 | error = getnameinfo((struct sockaddr *)sin, sin->sin_len, addr_buf, |
| 85 | sizeof(addr_buf), NULL, 0, n_flags); |
| 86 | |
| 87 | if (error) |
| 88 | #endif |
| 89 | inet_ntop(AF_INET, &sin->sin_addr, addr_buf, sizeof(addr_buf)); |
| 90 | |
| 91 | printf("\tinet %s", addr_buf); |
| 92 | |
| 93 | if (ifa->ifa_flags & IFF_POINTOPOINT) { |
| 94 | sin = (struct sockaddr_in *)ifa->ifa_dstaddr; |
| 95 | if (sin == NULL) |
| 96 | sin = &null_sin; |
| 97 | printf(" --> %s", inet_ntoa(sin->sin_addr)); |
| 98 | } |
| 99 | |
| 100 | sin = (struct sockaddr_in *)ifa->ifa_netmask; |
| 101 | if (sin == NULL) |
| 102 | sin = &null_sin; |
| 103 | if (f_inet != NULL && strcmp(f_inet, "cidr") == 0) { |
| 104 | int cidr = 32; |
| 105 | unsigned long smask; |
| 106 | |
| 107 | smask = ntohl(sin->sin_addr.s_addr); |
| 108 | while ((smask & 1) == 0) { |
| 109 | smask = smask >> 1; |
| 110 | cidr--; |
| 111 | if (cidr == 0) |
| 112 | break; |
| 113 | } |
| 114 | printf("/%d", cidr); |
| 115 | } else if (f_inet != NULL && strcmp(f_inet, "dotted") == 0) |
| 116 | printf(" netmask %s", inet_ntoa(sin->sin_addr)); |
| 117 | else |
| 118 | printf(" netmask 0x%lx", (unsigned long)ntohl(sin->sin_addr.s_addr)); |
| 119 | |