int nslookup_main(int argc, char **argv)
{
/* We allow 1 or 2 arguments.
* The first is the name to be looked up and the second is an
* optional DNS server with which to do the lookup.
* More than 3 arguments is an error to follow the pattern of the
* standard nslookup */
if (!argv[1] || argv[1][0] == '-' || argc > 3)
bb_show_usage();
/* initialize DNS structure _res used in printing the default
* name server and in the explicit name server option feature. */
res_init();
/* rfc2133 says this enables IPv6 lookups */
/* (but it also says "may be enabled in /etc/resolv.conf") */
/*_res.options |= RES_USE_INET6;*/
set_default_dns(argv[2]);
server_print();
/* getaddrinfo and friends are free to request a resolver
* reinitialization. Just in case, set_default_dns() again
* after getaddrinfo (in server_print). This reportedly helps
* with bug 675 "nslookup does not properly use second argument"
* at least on Debian Wheezy and Openwrt AA (eglibc based).
*/
set_default_dns(argv[2]);
return print_host(argv[1], "Name:");
}
/* ________________________________________________________________________ */
int nslookup_main(int argc, char **argv)
{
struct hostent *host;
/*
* initialize DNS structure _res used in printing the default
* name server and in the explicit name server option feature.
*/
res_init();
/*
* We allow 1 or 2 arguments.
* The first is the name to be looked up and the second is an
* optional DNS server with which to do the lookup.
* More than 3 arguments is an error to follow the pattern of the
* standard nslookup
*/
if (argc < 2 || *argv[1]=='-' || argc > 3)
bb_show_usage();
else if(argc == 3)
set_default_dns(argv[2]);
server_print();
if (is_ip_address(argv[1])) {
host = gethostbyaddr_wrapper(argv[1]);
} else {
host = xgethostbyname(argv[1]);
}
hostent_fprint(host, "Name: ");
return EXIT_SUCCESS;
}
int nslookup_main(int argc, char **argv)
{
/* We allow 1 or 2 arguments.
* The first is the name to be looked up and the second is an
* optional DNS server with which to do the lookup.
* More than 3 arguments is an error to follow the pattern of the
* standard nslookup */
if (!argv[1] || argv[1][0] == '-' || argc > 3)
bb_show_usage();
#ifndef __UC_LIBC__
/* initialize DNS structure _res used in printing the default
* name server and in the explicit name server option feature. */
res_init();
#endif
/* rfc2133 says this enables IPv6 lookups */
/* (but it also says "may be enabled in /etc/resolv.conf") */
/*_res.options |= RES_USE_INET6;*/
if (argv[2])
set_default_dns(argv[2]);
server_print();
return print_host(argv[1], "Name:");
}