amiga-whois/whois.c

458 lines
12 KiB
C

/* $AmigaOS: whois_amiga.c,v 1.37 2015/11/21 18:25:49 Exp $ */
/*-
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "config.h"
const char copyright[] =
"@(#) Copyright (c) 1980, 1993\n"
"The Regents of the University of California. All rights reserved.\n";
const char sccsid[] =
"@(#)whois.c 8.1 (Berkeley) 6/6/93";
#include "version.h"
const char *vers = PACKAGE_VERSION_STRING;
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <err.h>
#include <netdb.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#define ABUSEHOST "whois.abuse.net"
#define NICHOST "whois.crsnic.net"
#define INICHOST "whois.networksolutions.com"
#define GNICHOST "whois.nic.gov"
#define ANICHOST "whois.arin.net"
#define LNICHOST "whois.lacnic.net"
#define KNICHOST "whois.krnic.net"
#define RNICHOST "whois.ripe.net"
#define PNICHOST "whois.apnic.net"
#define MNICHOST "whois.ra.net"
#define QNICHOST_TAIL ".whois-servers.net"
#define BNICHOST "whois.registro.br"
#define NORIDHOST "whois.norid.no"
#define IANAHOST "whois.iana.org"
#define GERMNICHOST "de.whois-servers.net"
#define FNICHOST "whois.afrinic.net"
#ifdef __AMIGA__
#define DEFAULT_PORT "whois"
#endif
#ifdef __AROS__
#define DEFAULT_PORT "43"
#endif
#define WHOIS_SERVER_ID "Whois Server: "
#define WHOIS_ORG_SERVER_ID "Registrant Street1:Whois Server:"
#define WHOIS_RECURSE 0x01
#define WHOIS_QUICK 0x02
#define ishost(h) (isalnum((unsigned char)h) || h == '.' || h == '-')
static const char *ip_whois[] = { LNICHOST, RNICHOST, PNICHOST, BNICHOST,
FNICHOST, NULL
};
static const char *port = DEFAULT_PORT;
static char *choose_server(char *);
static void usage(void);
static void whois(const char *, const char *, int);
#ifdef __AMIGA__
int h_errno = 0;
#endif
/****************************************************************************/
char *progname_storage = NULL;
const char *getprogname(void) {
return (const char*)progname_storage;
}
void setprogname(const char *progname) {
if (progname == NULL) {
return;
}
if (progname_storage != NULL) {
free(progname_storage);
}
progname_storage = malloc(strlen(progname));
strcpy(progname_storage, progname);
}
/****************************************************************************/
struct Library *DOSBase = NULL;
struct Library *SocketBase = NULL;
void close_libs()
{
if (DOSBase != NULL) {
CloseLibrary(DOSBase);
DOSBase = NULL;
}
if (SocketBase != NULL) {
CloseLibrary(SocketBase);
SocketBase = NULL;
}
if (progname_storage != NULL) {
free(progname_storage);
}
}
int open_libs()
{
atexit(close_libs);
InitSemaphore(&GetaddrinfoSemaphore);
if(!(DOSBase = OpenLibrary((STRPTR)DOSLIB_NAME, DOSLIB_REV))) {
warnx2(OPEN_VER_ERROR, DOSLIB_NAME, (void*)DOSLIB_REV);
return 5;
}
if(!(SocketBase = OpenLibrary((STRPTR)BSDLIB_NAME, BSDLIB_REV))) {
warnx2(OPEN_VER_ERROR, BSDLIB_NAME, (void*)BSDLIB_REV);
return 5;
} else {
SocketBaseTags(
SBTM_SETVAL(SBTC_ERRNOPTR(sizeof(errno))), (IPTR) &errno,
SBTM_SETVAL(SBTC_HERRNOLONGPTR), (IPTR) &h_errno,
SBTM_SETVAL(SBTC_LOGTAGPTR), (IPTR) &progname_storage,
TAG_DONE );
}
return 0;
}
/****************************************************************************/
int
main(int argc, char *argv[])
{
const char *country, *host;
char *qnichost;
int ch, flags, use_qnichost;
if (argc > 0) {
setprogname(argv[0]);
open_libs();
} else {
return -1;
}
country = host = qnichost = NULL;
flags = use_qnichost = 0;
while ((ch = getopt(argc, argv, "aAbc:fgh:iIklmp:QrR6")) != -1) {
switch (ch) {
case 'a':
host = ANICHOST;
break;
case 'A':
host = PNICHOST;
break;
case 'b':
host = ABUSEHOST;
break;
case 'c':
country = optarg;
break;
case 'f':
host = FNICHOST;
break;
case 'g':
host = GNICHOST;
break;
case 'h':
host = optarg;
break;
case 'i':
host = INICHOST;
break;
case 'I':
host = IANAHOST;
break;
case 'k':
host = KNICHOST;
break;
case 'l':
host = LNICHOST;
break;
case 'm':
host = MNICHOST;
break;
case 'p':
port = optarg;
break;
case 'Q':
flags |= WHOIS_QUICK;
break;
case 'r':
host = RNICHOST;
break;
case 'R':
warnx0("-R is deprecated; use '-c ru' instead");
country = "ru";
break;
/* Remove in FreeBSD 10 */
case '6':
errx0(EX_USAGE, "-6 is deprecated; use -[aAflr] instead");
break;
case '?':
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (!argc || (country != NULL && host != NULL))
usage();
/*
* If no host or country is specified determine the top level domain
* from the query. If the TLD is a number, query ARIN. Otherwise, use
* TLD.whois-server.net. If the domain does not contain '.', fall
* back to NICHOST.
*/
if (host == NULL && country == NULL) {
if ((host = getenv("RA_SERVER")) == NULL) {
use_qnichost = 1;
host = NICHOST;
if (!(flags & WHOIS_QUICK))
flags |= WHOIS_RECURSE;
}
}
while (argc-- > 0) {
if (country != NULL) {
cpy2(&qnichost, country, QNICHOST_TAIL);
whois(*argv, qnichost, flags);
} else if (use_qnichost)
if ((qnichost = choose_server(*argv)) != NULL)
whois(*argv, qnichost, flags);
if (qnichost == NULL)
whois(*argv, host, flags);
free(qnichost);
qnichost = NULL;
argv++;
}
exit(0);
}
/*
* This function will remove any trailing periods from domain, after which it
* returns a pointer to newly allocated memory containing the whois server to
* be queried, or a NULL if the correct server couldn't be determined. The
* caller must remember to free(3) the allocated memory.
*/
static char *
choose_server(char *domain)
{
char *pos, *retval;
if (strchr(domain, ':')) {
cpy1(&retval, ANICHOST);
return (retval);
}
for (pos = strchr(domain, '\0'); pos > domain && *--pos == '.';)
*pos = '\0';
if (*domain == '\0')
errx0(EX_USAGE, "can't search for a null string");
if (strlen(domain) > sizeof("-NORID")-1 &&
strcasecmp(domain + strlen(domain) - sizeof("-NORID") + 1,
"-NORID") == 0) {
cpy1(&retval, NORIDHOST);
return (retval);
}
while (pos > domain && *pos != '.')
--pos;
if (pos <= domain)
return (NULL);
if (isdigit((unsigned char)*++pos))
cpy1(&retval, ANICHOST);
else
cpy2(&retval, pos, QNICHOST_TAIL);
return (retval);
}
static void
whois(const char *query, const char *hostname, int flags)
{
const short BUFSIZE = 256;
char message[BUFSIZE];
struct addrinfo *hostres;
char *buf, *host, *nhost, *p, *tbuf;
size_t c, len;
int i, s, error;
const char *reason = NULL;
struct addrinfo hints, *ai;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_flags = 0;
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
error = getaddrinfo(hostname, port, &hints, &hostres);
if (error) {
warnx2("%s: %s", hostname, gai_strerror(error));
return;
}
for (s = -1, ai = hostres; ai != NULL; ai = ai->ai_next) {
s = Socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
if (s < 0) {
error = errno;
reason = "socket";
continue;
}
if (Connect(s, ai->ai_addr, ai->ai_addrlen) < 0) {
error = errno;
reason = "connect";
CloseSocket(s);
s = -1;
continue;
}
break;
}
if (s < 0) {
if (reason) {
errno = error;
warn2("%s: %s", hostname, reason);
} else {
warnx0("Unknown error in connection attempt");
}
freeaddrinfo(hostres);
return;
}
if (strcmp(hostname, GERMNICHOST) == 0) {
snprintf(message, BUFSIZE, "-T dn,ace -C US-ASCII %s\r\n", query);
} else if (strcmp(hostname, "dk" QNICHOST_TAIL) == 0) {
snprintf(message, BUFSIZE, "--show-handles %s\r\n", query);
} else if (isdigit(query[0])) {
snprintf(message, BUFSIZE, "n + %s\r\n", query);
} else {
snprintf(message, BUFSIZE, "%s\r\n", query);
}
if(Send(s, message, strlen(message), 0) < 0) {
err0(1, "send failed");
}
nhost = NULL;
while ((buf = sgetln(s, &len)) != NULL) {
while (len > 0 && isspace(buf[len - 1]))
buf[--len] = '\0';
cpy1pad(&tbuf, len, buf);
printf("%s\n", tbuf);
free(tbuf);
if ((flags & WHOIS_RECURSE) && nhost == NULL) {
host = strnstr(buf, WHOIS_SERVER_ID, len);
if (host != NULL) {
host += sizeof(WHOIS_SERVER_ID) - 1;
for (p = host; p < buf + len; p++) {
if (!ishost(*p)) {
*p = '\0';
break;
}
}
cpy1pad(&nhost, (int)(buf + len - host), host);
} else if ((host =
strnstr(buf, WHOIS_ORG_SERVER_ID, len)) != NULL) {
host += sizeof(WHOIS_ORG_SERVER_ID) - 1;
for (p = host; p < buf + len; p++) {
if (!ishost(*p)) {
*p = '\0';
break;
}
}
cpy1pad(&nhost, (int)(buf + len - host), host);
} else if (strcmp(hostname, ANICHOST) == 0) {
for (c = 0; c <= len; c++)
buf[c] = tolower((unsigned char)buf[c]);
for (i = 0; ip_whois[i] != NULL; i++) {
if (strnstr(buf, ip_whois[i], len) !=
NULL) {
cpy1(&nhost, ip_whois[i]);
break;
}
}
}
}
}
CloseSocket(s);
if (nhost != NULL) {
whois(query, nhost, 0);
free(nhost);
}
}
static void
usage(void)
{
fprintf(stderr,
"usage: whois [-aAbfgiIklmQrR6] [-c country-code | -h hostname] "
"[-p port] name ...\n");
exit(EX_USAGE);
}