From 1c0dfe1d6fbd33f24da3e8bad01acbb7565e6d3d Mon Sep 17 00:00:00 2001 From: epoch Date: Fri, 1 Nov 2013 09:12:45 +0000 Subject: Added mkz to anonet and as many of the needed files as I could think of. That as.c is the part of NetBSD traceroute that does AS lookups. --- contrib/whoisd/as.c | 234 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 234 insertions(+) create mode 100644 contrib/whoisd/as.c (limited to 'contrib/whoisd/as.c') diff --git a/contrib/whoisd/as.c b/contrib/whoisd/as.c new file mode 100644 index 0000000..354c9ec --- /dev/null +++ b/contrib/whoisd/as.c @@ -0,0 +1,234 @@ +/* $NetBSD: as.c,v 1.2 2008/04/28 20:24:17 martin Exp $ */ + +/* + * Copyright (c) 2001 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Andrew Brown. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "as.h" + +#define DEFAULT_AS_SERVER "whois.radb.net" +#undef AS_DEBUG_FILE + +struct aslookup { + FILE *as_f; +#ifdef AS_DEBUG_FILE + FILE *as_debug; +#endif /* AS_DEBUG_FILE */ +}; + +void * +as_setup(server) + char *server; +{ + struct aslookup *asn; + struct hostent *he = NULL; + struct servent *se; + struct sockaddr_in in; + FILE *f; + int s; + + if (server == NULL) + server = DEFAULT_AS_SERVER; + + (void)memset(&in, 0, sizeof(in)); + in.sin_family = AF_INET; + in.sin_len = sizeof(in); + if ((se = getservbyname("whois", "tcp")) == NULL) { + warnx("warning: whois/tcp service not found"); + in.sin_port = ntohs(43); + } else + in.sin_port = se->s_port; + + if (inet_aton(server, &in.sin_addr) == 0 && + ((he = gethostbyname(server)) == NULL || + he->h_addr == NULL)) { + warnx("%s: %s", server, hstrerror(h_errno)); + return (NULL); + } + + if ((s = socket(PF_INET, SOCK_STREAM, 0)) == -1) { + warn("socket"); + return (NULL); + } + + do { + if (he != NULL) { + memcpy(&in.sin_addr, he->h_addr, he->h_length); + he->h_addr_list++; + } + if (connect(s, (struct sockaddr *)&in, sizeof(in)) == 0) + break; + if (he == NULL || he->h_addr == NULL) { + close(s); + s = -1; + break; + } + } while (1); + + if (s == -1) { + warn("connect"); + return (NULL); + } + + f = fdopen(s, "r+"); + (void)fprintf(f, "!!\n"); + (void)fflush(f); + + asn = malloc(sizeof(struct aslookup)); + if (asn == NULL) + (void)fclose(f); + else + asn->as_f = f; + +#ifdef AS_DEBUG_FILE + asn->as_debug = fopen(AS_DEBUG_FILE, "w"); + if (asn->as_debug) { + (void)fprintf(asn->as_debug, ">> !!\n"); + (void)fflush(asn->as_debug); + } +#endif /* AS_DEBUG_FILE */ + + return (asn); +} + +int +as_lookup(_asn, addr) + void *_asn; + struct in_addr *addr; +{ + struct aslookup *asn = _asn; + char buf[1024]; + int as, rc, dlen; + + as = rc = dlen = 0; + (void)fprintf(asn->as_f, "!r%s/32,l\n", inet_ntoa(*addr)); + (void)fflush(asn->as_f); + +#ifdef AS_DEBUG_FILE + if (asn->as_debug) { + (void)fprintf(asn->as_debug, ">> !r%s/32,l\n", + inet_ntoa(*addr)); + (void)fflush(asn->as_debug); + } +#endif /* AS_DEBUG_FILE */ + + while (fgets(buf, sizeof(buf), asn->as_f) != NULL) { + buf[sizeof(buf) - 1] = '\0'; + +#ifdef AS_DEBUG_FILE + if (asn->as_debug) { + (void)fprintf(asn->as_debug, "<< %s", buf); + (void)fflush(asn->as_debug); + } +#endif /* AS_DEBUG_FILE */ + + if (rc == 0) { + rc = buf[0]; + switch (rc) { + case 'A': + /* A - followed by # bytes of answer */ + sscanf(buf, "A%d\n", &dlen); +#ifdef AS_DEBUG_FILE + if (asn->as_debug) { + (void)fprintf(asn->as_debug, + "dlen: %d\n", dlen); + (void)fflush(asn->as_debug); + } +#endif /* AS_DEBUG_FILE */ + break; + case 'C': + case 'D': + case 'E': + case 'F': + /* C - no data returned */ + /* D - key not found */ + /* E - multiple copies of key */ + /* F - some other error */ + break; + } + if (rc == 'A') + /* skip to next input line */ + continue; + } + + if (dlen == 0) + /* out of data, next char read is end code */ + rc = buf[0]; + if (rc != 'A') + /* either an error off the bat, or a done code */ + break; + + /* data received, thank you */ + dlen -= strlen(buf); + + /* origin line is the interesting bit */ + if (as == 0 && strncasecmp(buf, "origin:", 7) == 0) { + sscanf(buf + 7, " AS%d", &as); +#ifdef AS_DEBUG_FILE + if (asn->as_debug) { + (void)fprintf(asn->as_debug, "as: %d\n", as); + (void)fflush(asn->as_debug); + } +#endif /* AS_DEBUG_FILE */ + } + } + + return (as); +} + +void +as_shutdown(_asn) + void *_asn; +{ + struct aslookup *asn = _asn; + + (void)fprintf(asn->as_f, "!q\n"); + (void)fclose(asn->as_f); + +#ifdef AS_DEBUG_FILE + if (asn->as_debug) { + (void)fprintf(asn->as_debug, ">> !q\n"); + (void)fclose(asn->as_debug); + } +#endif /* AS_DEBUG_FILE */ + + free(asn); +} -- cgit v1.2.3