int main(int argc, char **argv)
{
INET_ADDR_LIST list;
struct sockaddr_storage *sa;
MAI_HOSTADDR_STR hostaddr;
INET_PROTO_INFO *proto_info;
msg_vstream_init(argv[0], VSTREAM_ERR);
if (argc < 3)
msg_fatal("usage: %s protocols hostname...", argv[0]);
proto_info = inet_proto_init(argv[0], argv[1]);
argv += 1;
while (--argc && *++argv) {
inet_addr_list_init(&list);
if (inet_addr_host(&list, *argv) == 0)
msg_fatal("not found: %s", *argv);
for (sa = list.addrs; sa < list.addrs + list.used; sa++) {
SOCKADDR_TO_HOSTADDR(SOCK_ADDR_PTR(sa), SOCK_ADDR_LEN(sa),
&hostaddr, (MAI_SERVPORT_STR *) 0, 0);
vstream_printf("%s\t%s\n", *argv, hostaddr.buf);
}
vstream_fflush(VSTREAM_OUT);
inet_addr_list_free(&list);
}
return (0);
}
int main(int unused_argc, char **argv)
{
INET_ADDR_LIST addr_list;
INET_ADDR_LIST mask_list;
MAI_HOSTADDR_STR hostaddr;
MAI_HOSTADDR_STR hostmask;
struct sockaddr *sa;
int i;
INET_PROTO_INFO *proto_info;
msg_vstream_init(argv[0], VSTREAM_ERR);
msg_verbose = 1;
proto_info = inet_proto_init(argv[0],
argv[1] ? argv[1] : INET_PROTO_NAME_ALL);
inet_addr_list_init(&addr_list);
inet_addr_list_init(&mask_list);
inet_addr_local(&addr_list, &mask_list, proto_info->ai_family_list);
if (addr_list.used == 0)
msg_fatal("cannot find any active network interfaces");
if (addr_list.used == 1)
msg_warn("found only one active network interface");
for (i = 0; i < addr_list.used; i++) {
sa = SOCK_ADDR_PTR(addr_list.addrs + i);
SOCKADDR_TO_HOSTADDR(SOCK_ADDR_PTR(sa), SOCK_ADDR_LEN(sa),
&hostaddr, (MAI_SERVPORT_STR *) 0, 0);
sa = SOCK_ADDR_PTR(mask_list.addrs + i);
SOCKADDR_TO_HOSTADDR(SOCK_ADDR_PTR(sa), SOCK_ADDR_LEN(sa),
&hostmask, (MAI_SERVPORT_STR *) 0, 0);
vstream_printf("%s/%s\n", hostaddr.buf, hostmask.buf);
vstream_fflush(VSTREAM_OUT);
}
inet_addr_list_free(&addr_list);
inet_addr_list_free(&mask_list);
return (0);
}
int main(int argc, char **argv)
{
INET_ADDR_LIST list;
INET_PROTO_INFO *proto_info;
proto_info = inet_proto_init(argv[0], INET_PROTO_NAME_ALL);
inet_addr_list_init(&list);
while (--argc && *++argv)
if (inet_addr_host(&list, *argv) == 0)
msg_fatal("host not found: %s", *argv);
msg_info("list before sort/uniq");
inet_addr_list_print(&list);
inet_addr_list_uniq(&list);
msg_info("list after sort/uniq");
inet_addr_list_print(&list);
inet_addr_list_free(&list);
return (0);
}
static void own_inet_addr_init(INET_ADDR_LIST *addr_list,
INET_ADDR_LIST *mask_list)
{
INET_ADDR_LIST local_addrs;
INET_ADDR_LIST local_masks;
char *hosts;
char *host;
const char *sep = " \t,";
char *bufp;
int nvirtual;
int nlocal;
MAI_HOSTADDR_STR hostaddr;
struct sockaddr_storage *sa;
struct sockaddr_storage *ma;
inet_addr_list_init(addr_list);
inet_addr_list_init(mask_list);
/*
* If we are listening on all interfaces (default), ask the system what
* the interfaces are.
*/
if (strcmp(var_inet_interfaces, INET_INTERFACES_ALL) == 0) {
if (inet_addr_local(addr_list, mask_list,
inet_proto_info()->ai_family_list) == 0)
msg_fatal("could not find any active network interfaces");
}
/*
* Select all loopback interfaces from the system's available interface
* list.
*/
else if (strcmp(var_inet_interfaces, INET_INTERFACES_LOCAL) == 0) {
inet_addr_list_init(&local_addrs);
inet_addr_list_init(&local_masks);
if (inet_addr_local(&local_addrs, &local_masks,
inet_proto_info()->ai_family_list) == 0)
msg_fatal("could not find any active network interfaces");
for (sa = local_addrs.addrs, ma = local_masks.addrs;
sa < local_addrs.addrs + local_addrs.used; sa++, ma++) {
if (sock_addr_in_loopback(SOCK_ADDR_PTR(sa))) {
inet_addr_list_append(addr_list, SOCK_ADDR_PTR(sa));
inet_addr_list_append(mask_list, SOCK_ADDR_PTR(ma));
}
}
inet_addr_list_free(&local_addrs);
inet_addr_list_free(&local_masks);
}
/*
* If we are supposed to be listening only on specific interface
* addresses (virtual hosting), look up the addresses of those
* interfaces.
*/
else {
bufp = hosts = mystrdup(var_inet_interfaces);
while ((host = mystrtok(&bufp, sep)) != 0)
if (inet_addr_host(addr_list, host) == 0)
msg_fatal("config variable %s: host not found: %s",
VAR_INET_INTERFACES, host);
myfree(hosts);
/*
* Weed out duplicate IP addresses. Duplicates happen when the same
* IP address is listed under multiple hostnames. If we don't weed
* out duplicates, Postfix can suddenly stop working after the DNS is
* changed.
*/
inet_addr_list_uniq(addr_list);
/*
* Find out the netmask for each virtual interface, by looking it up
* among all the local interfaces.
*/
inet_addr_list_init(&local_addrs);
inet_addr_list_init(&local_masks);
if (inet_addr_local(&local_addrs, &local_masks,
inet_proto_info()->ai_family_list) == 0)
msg_fatal("could not find any active network interfaces");
for (nvirtual = 0; nvirtual < addr_list->used; nvirtual++) {
for (nlocal = 0; /* see below */ ; nlocal++) {
if (nlocal >= local_addrs.used) {
SOCKADDR_TO_HOSTADDR(
SOCK_ADDR_PTR(addr_list->addrs + nvirtual),
SOCK_ADDR_LEN(addr_list->addrs + nvirtual),
&hostaddr, (MAI_SERVPORT_STR *) 0, 0);
msg_fatal("parameter %s: no local interface found for %s",
VAR_INET_INTERFACES, hostaddr.buf);
}
if (SOCK_ADDR_EQ_ADDR(addr_list->addrs + nvirtual,
local_addrs.addrs + nlocal)) {
inet_addr_list_append(mask_list,
SOCK_ADDR_PTR(local_masks.addrs + nlocal));
break;
}
}
}
inet_addr_list_free(&local_addrs);
inet_addr_list_free(&local_masks);
}
}
