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-rw-r--r--whois.c110
1 files changed, 58 insertions, 52 deletions
diff --git a/whois.c b/whois.c
index 61fbf16..f79cca9 100644
--- a/whois.c
+++ b/whois.c
@@ -152,11 +152,18 @@ int main(int argc, char *argv[])
}
#endif
+ signal(SIGTERM, sighandler);
+ signal(SIGINT, sighandler);
+ signal(SIGALRM, alarm_handler);
+ alarm(60);
+
if (!server) {
char *tmp;
+
tmp = normalize_domain(qstring);
server = whichwhois(tmp);
free(tmp);
+
switch (server[0]) {
case 0:
if (!(server = getenv("WHOIS_SERVER")))
@@ -178,11 +185,18 @@ int main(int argc, char *argv[])
puts(_("Connecting to whois.crsnic.net."));
sockfd = openconn("whois.crsnic.net", NULL);
server = query_crsnic(sockfd, qstring);
- closeconn(sockfd);
+ close(sockfd);
if (!server)
exit(0);
printf(_("\nFound crsnic referral to %s.\n\n"), server);
+ alarm(60);
break;
+ case 5:
+ puts(_("No whois server is known for this kind of object."));
+ exit(0);
+ case 6:
+ puts(_("Unknown AS number or IP network. Please upgrade this program."));
+ exit(0);
default:
if (verb)
printf(_("Using server %s.\n"), server);
@@ -197,9 +211,6 @@ int main(int argc, char *argv[])
printf(_("Query string: \"%s\"\n\n"), p);
strcat(p, "\r\n");
- signal(SIGTERM, sighandler);
- signal(SIGINT, sighandler);
-
sockfd = openconn(server, port);
do_query(sockfd, p);
@@ -284,28 +295,25 @@ const char *whichwhois(const char *s)
/* IPv6 address */
if (strchr(s, ':')) {
- if (strncmp(s, "2001:2", 6) == 0 || /* XXX ugly hack! */
- strncmp(s, "2001:02", 6) == 0 ||
- strncasecmp(s, "2001:A", 6) == 0 ||
- strncasecmp(s, "2001:0A", 6) == 0 ||
- strncasecmp(s, "2001:C", 6) == 0 ||
- strncasecmp(s, "2001:0C", 6) == 0)
- return "whois.apnic.net";
- if (strncmp(s, "2001:4", 6) == 0 ||
- strncmp(s, "2001:04", 6) == 0)
- return "whois.arin.net";
- if (strncmp(s, "2001:6", 6) == 0 ||
- strncmp(s, "2001:06", 6) == 0 ||
- strncmp(s, "2001:8", 6) == 0 ||
- strncmp(s, "2001:08", 6) == 0)
- return "whois.ripe.net";
- /* if (strncasecmp(s, "3ffe", 4) == 0) */
+ if (strncmp(s, "2001:", 5) == 0) {
+ unsigned long v6net = strtol(s + 5, NULL, 16);
+ v6net = v6net & 0xfe00; /* we care about the first 7 bits */
+ for (i = 0; ip6_assign[i].serv; i++)
+ if (v6net == ip6_assign[i].net)
+ return ip6_assign[i].serv;
+ return "\006"; /* unknown allocation */
+ } else if (strncasecmp(s, "3ffe:", 5) == 0)
return "whois.6bone.net";
+ /* RPSL objects like AS8627:fltr-TRANSIT-OUT */
+ else if (strncasecmp(s, "as", 2) == 0 && isasciidigit(s[2]))
+ return whereas(atoi(s + 2));
+ else
+ return "\005";
}
/* email address */
if (strchr(s, '@'))
- return "";
+ return "\005";
/* no dot and no hyphen means it's a NSI NIC handle or ASN (?) */
if (!strpbrk(s, ".-")) {
@@ -313,14 +321,14 @@ const char *whichwhois(const char *s)
for (p = s; *p; p++); /* go to the end of s */
if (strncasecmp(s, "as", 2) == 0 && /* it's an AS */
- ((s[2] >= '0' && s[2] <= '9') || s[2] == ' '))
- return whereas(atoi(s + 2), as_assign);
+ (isasciidigit(s[2]) || s[2] == ' '))
+ return whereas(atoi(s + 2));
else if (strncasecmp(p - 2, "jp", 2) == 0) /* JP NIC handle */
return "whois.nic.ad.jp";
- if (*p == '!') /* NSI NIC handle */
+ if (*s == '!') /* NSI NIC handle */
return "whois.networksolutions.com";
- else /* it's a NSI NIC handle or something we don't know about */
- return "";
+ else
+ return "\005"; /* probably a unknown kind of nic handle */
}
/* smells like an IP? */
@@ -328,13 +336,10 @@ const char *whichwhois(const char *s)
for (i = 0; ip_assign[i].serv; i++)
if ((ip & ip_assign[i].mask) == ip_assign[i].net)
return ip_assign[i].serv;
- if (verb)
- puts(_("I don't know where this IP has been delegated.\n"
- "I'll try ARIN and hope for the best..."));
- return "whois.arin.net";
+ return "\005"; /* not in the unicast IPv4 space */
}
- /* check TLD list */
+ /* check the TLDs list */
for (i = 0; tld_serv[i]; i += 2)
if (domcmp(s, tld_serv[i]))
return tld_serv[i + 1];
@@ -345,29 +350,23 @@ const char *whichwhois(const char *s)
for (i = 0; nic_handles[i]; i += 2)
if (strncasecmp(s, nic_handles[i], strlen(nic_handles[i])) == 0)
return nic_handles[i + 1];
- if (verb)
- puts(_("I guess it's a netblock name but I don't know where to"
- " look it up."));
- return "whois.arin.net";
+ /* it's probably a network name */
+ return "";
}
- /* has dot and hypen and it's not in tld_serv[], WTF is it? */
- if (verb)
- puts(_("I guess it's a domain but I don't know where to look it"
- " up."));
- return "";
+ /* has dot and maybe a hypen and it's not in tld_serv[], WTF is it? */
+ /* either a TLD or a NIC handle we don't know about yet */
+ return "\005";
}
-const char *whereas(int asn, struct as_del aslist[])
+const char *whereas(const unsigned short asn)
{
int i;
- if (asn > 28671)
- puts(_("Unknown AS number. Please upgrade this program."));
- else for (i = 0; aslist[i].serv; i++)
- if (asn >= aslist[i].first && asn <= aslist[i].last)
- return aslist[i].serv;
- return "whois.arin.net";
+ for (i = 0; as_assign[i].serv; i++)
+ if (asn >= as_assign[i].first && asn <= as_assign[i].last)
+ return as_assign[i].serv;
+ return "\006";
}
char *queryformat(const char *server, const char *flags, const char *query)
@@ -402,9 +401,11 @@ char *queryformat(const char *server, const char *flags, const char *query)
strcat(buf, flags);
}
if (!isripe && strcmp(server, "whois.nic.mil") == 0 &&
- strncasecmp(query, "AS", 2) == 0 &&
- query[2] >= '0' && query[2] <= '9')
+ strncasecmp(query, "AS", 2) == 0 && isasciidigit(query[2]))
sprintf(buf, "AS %s", query + 2); /* fix query for DDN */
+ if (!isripe && strcmp(server, "whois.arin.net") == 0 &&
+ strncasecmp(query, "AS", 2) == 0 && isasciidigit(query[2]))
+ sprintf(buf, "A %s", query + 2); /* always ask for a ASN */
else if (!isripe && strcmp(server, "whois.corenic.net") == 0)
sprintf(buf, "--machine %s", query); /* machine readable output */
else if (!isripe && strcmp(server, "whois.nic.ad.jp") == 0) {
@@ -566,14 +567,15 @@ int openconn(const char *server, const char *port)
return fd;
}
-void closeconn(const int fd)
+void alarm_handler(int signum)
{
- close(fd);
+ close(sockfd);
+ err_quit(_("Timeout."));
}
void sighandler(int signum)
{
- closeconn(sockfd);
+ close(sockfd);
err_quit(_("Interrupted by signal %d..."), signum);
}
@@ -614,6 +616,10 @@ unsigned long myinet_aton(const char *s)
return (a << 24) + (b << 16) + (c << 8) + d;
}
+int isasciidigit(const char c) {
+ return (c >= '0' && c <= '9') ? 1 : 0;
+}
+
/* http://www.ripe.net/ripe/docs/databaseref-manual.html */
void usage(void)
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-27 21:31:41 +0000