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Enable whois queries over IPv6

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Obtained from:	KAME
This commit is contained in:
Kris Kennaway 2000-07-07 07:52:21 +00:00
parent 4d41cae8f8
commit ad59157a75
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=62756
1 changed files with 39 additions and 43 deletions
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82
usr.bin/whois/whois.c
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@ -75,20 +75,18 @@ static const char rcsid[] =
#define WHOIS_QUICK 0x04
static void usage __P((void));
static void whois __P((char *, struct sockaddr_in *, int));
static void whois __P((char *, struct addrinfo *, int));
int
main(argc, argv)
int argc;
char **argv;
{
int ch, i, j;
int ch, i, j, error;
int use_qnichost, flags;
char *host;
char *qnichost;
struct servent *sp;
struct hostent *hp;
struct sockaddr_in sin;
struct addrinfo hints, *res;
#ifdef SOCKS
SOCKSinit(argv[0]);
@ -145,16 +143,6 @@ main(argc, argv)
usage();
}
memset(&sin, 0, sizeof(sin));
sin.sin_len = sizeof(sin);
sin.sin_family = AF_INET;
sp = getservbyname("whois", "tcp");
if (sp == NULL) {
sin.sin_port = htons(WHOIS_PORT);
} else {
sin.sin_port = sp->s_port;
}
/*
* If no nic host is specified, use whois-servers.net
* if there is a '.' in the name, else fall back to NICHOST.
@ -186,36 +174,38 @@ main(argc, argv)
strcpy(qnichost, *argv + j + 1);
strcat(qnichost, QNICHOST_TAIL);
if (inet_aton(qnichost, &sin.sin_addr) == 0) {
hp = gethostbyname2(qnichost, AF_INET);
if (hp == NULL) {
free(qnichost);
qnichost = NULL;
} else {
sin.sin_addr = *(struct in_addr *)hp->h_addr_list[0];
}
}
memset(&hints, 0, sizeof(hints));
hints.ai_flags = 0;
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
error = getaddrinfo(qnichost, "whois",
&hints, &res);
if (error != 0)
errx(EX_NOHOST, "%s: %s", qnichost,
gai_strerror(error));
}
}
if (!qnichost && inet_aton(host, &sin.sin_addr) == 0) {
hp = gethostbyname2(host, AF_INET);
if (hp == NULL) {
if (!qnichost) {
memset(&hints, 0, sizeof(hints));
hints.ai_flags = 0;
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
error = getaddrinfo(host, "whois", &hints, &res);
if (error != 0)
errx(EX_NOHOST, "%s: %s", host,
hstrerror(h_errno));
}
host = hp->h_name;
sin.sin_addr = *(struct in_addr *)hp->h_addr_list[0];
gai_strerror(error));
}
whois(*argv++, &sin, flags);
whois(*argv++, res, flags);
freeaddrinfo(res);
}
exit(0);
}
static void
whois(name, sinp, flags)
whois(name, res, flags)
char *name;
struct sockaddr_in *sinp;
struct addrinfo *res;
int flags;
{
FILE *sfi, *sfo;
@ -223,12 +213,12 @@ whois(name, sinp, flags)
size_t len;
int s, nomatch;
s = socket(PF_INET, SOCK_STREAM, 0);
s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
if (s < 0) {
err(EX_OSERR, "socket");
}
if (connect(s, (struct sockaddr *)sinp, sizeof(*sinp)) < 0) {
if (connect(s, res->ai_addr, res->ai_addrlen) < 0) {
err(EX_OSERR, "connect");
}
@ -278,17 +268,23 @@ whois(name, sinp, flags)
nhost = INICHOST;
}
if (nhost) {
if (inet_aton(nhost, &sinp->sin_addr) == 0) {
struct hostent *hp = gethostbyname2(nhost, AF_INET);
if (hp == NULL) {
return;
}
sinp->sin_addr = *(struct in_addr *)hp->h_addr_list[0];
struct addrinfo hints, *res2;
int error;
memset(&hints, 0, sizeof(hints));
hints.ai_flags = 0;
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
error = getaddrinfo(nhost, "whois", &hints, &res2);
if (error != 0) {
warnx("%s: %s", nhost, gai_strerror(error));
return;
}
if (!nomatch) {
free(nhost);
}
whois(name, sinp, 0);
whois(name, res2, 0);
freeaddrinfo(res2);
}
}