From c382aa90246236898a439c1aee135bb0957b66f2 Mon Sep 17 00:00:00 2001 From: "Todd C. Miller" Date: Thu, 19 Dec 2002 20:37:25 +0000 Subject: o Add -6 and -c options from FreeBSD o Get rid of sysexits.h from Andrey Matveev o Some simplification and cleanup by me (improved readability, less code) o Add logic to use whois.networksolutions.com if name is a handle starting with '!' --- usr.bin/whois/whois.c | 179 ++++++++++++++++++++++---------------------------- 1 file changed, 78 insertions(+), 101 deletions(-) (limited to 'usr.bin/whois/whois.c') diff --git a/usr.bin/whois/whois.c b/usr.bin/whois/whois.c index cc3473b6d58..0ee4d6f7e18 100644 --- a/usr.bin/whois/whois.c +++ b/usr.bin/whois/whois.c @@ -1,4 +1,4 @@ -/* $OpenBSD: whois.c,v 1.17 2002/12/17 20:17:49 millert Exp $ */ +/* $OpenBSD: whois.c,v 1.18 2002/12/19 20:37:24 millert Exp $ */ /* * Copyright (c) 1980, 1993 @@ -43,7 +43,7 @@ static const char copyright[] = #if 0 static const char sccsid[] = "@(#)whois.c 8.1 (Berkeley) 6/6/93"; #else -static const char rcsid[] = "$OpenBSD: whois.c,v 1.17 2002/12/17 20:17:49 millert Exp $"; +static const char rcsid[] = "$OpenBSD: whois.c,v 1.18 2002/12/19 20:37:24 millert Exp $"; #endif #endif /* not lint */ @@ -54,11 +54,11 @@ static const char rcsid[] = "$OpenBSD: whois.c,v 1.17 2002/12/17 20:17:49 miller #include #include +#include #include #include #include #include -#include #include #define NICHOST "whois.crsnic.net" @@ -71,6 +71,8 @@ static const char rcsid[] = "$OpenBSD: whois.c,v 1.17 2002/12/17 20:17:49 miller #define RUNICHOST "whois.ripn.net" #define MNICHOST "whois.ra.net" #define LNICHOST "whois.lacnic.net" +#define SNICHOST "whois.6bone.net" +#define VNICHOST "whois.networksolutions.com" #define QNICHOST_TAIL ".whois-servers.net" #define WHOIS_PORT 43 @@ -79,31 +81,28 @@ static const char rcsid[] = "$OpenBSD: whois.c,v 1.17 2002/12/17 20:17:49 miller #define WHOIS_QUICK 0x04 static __dead void usage(void); -static int whois(char *, struct addrinfo *, int); +static int whois(const char *, const char *, int); +static char *choose_server(const char *, const char *); int main(int argc, char **argv) { - int ch, i, j, error, rval; - int use_qnichost, flags; - size_t len; - char *host, *qnichost, *name; - struct addrinfo hints, *res; + int ch, flags, rval; + char *host, *name, *country, *server; #ifdef SOCKS SOCKSinit(argv[0]); #endif - - host = NULL; - qnichost = NULL; - flags = 0; - use_qnichost = 0; - rval = 0; - while ((ch = getopt(argc, argv, "adgh:ilmpqQrR")) != -1) + country = host = server = NULL; + flags = rval = 0; + while ((ch = getopt(argc, argv, "ac:dgh:ilmpqQrR6")) != -1) switch((char)ch) { case 'a': host = ANICHOST; break; + case 'c': + country = optarg; + break; case 'd': host = DNICHOST; break; @@ -137,86 +136,46 @@ main(int argc, char **argv) case 'R': host = RUNICHOST; break; - case '?': + case '6': + host = SNICHOST; + break; default: usage(); } argc -= optind; argv += optind; - if (!argc) + if (!argc || (country != NULL && host != NULL)) usage(); - /* - * If no nic host is specified, use whois-servers.net - * if there is a '.' in the name, else fall back to NICHOST. - */ - if (host == NULL) { - use_qnichost = 1; - host = NICHOST; - if (!(flags & WHOIS_QUICK)) - flags |= WHOIS_INIC_FALLBACK | WHOIS_RECURSE; - } - for (name = *argv; (name = *argv) != NULL; argv++) { - if (use_qnichost) { - if (qnichost) { - free(qnichost); - qnichost = NULL; - } - for (i = j = 0; name[i]; i++) - if (name[i] == '.') - j = i; - if (j != 0) { - len = i - j + 1 + strlen(QNICHOST_TAIL); - qnichost = (char *)calloc(len, sizeof(char)); - if (!qnichost) - err(1, "calloc"); - strlcpy(qnichost, name + j + 1, len); - strlcat(qnichost, QNICHOST_TAIL, len); - 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) { - warnx("%s: %s", qnichost, - gai_strerror(error)); - rval++; - continue; - } - } - } - 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) { - warnx("%s: %s", host, gai_strerror(error)); - rval++; - continue; - } - } - - whois(name, res, flags); - freeaddrinfo(res); - } + if (host == NULL && country == NULL && !(flags & WHOIS_QUICK)) + flags |= WHOIS_INIC_FALLBACK | WHOIS_RECURSE; + for (name = *argv; (name = *argv) != NULL; argv++) + rval += whois(name, host ? host : choose_server(name, country), flags); exit(rval); } static int -whois(char *name, struct addrinfo *res, int flags) +whois(const char *name, const char *server, int flags) { FILE *sfi, *sfo; char *buf, *p, *nhost, *nbuf = NULL; size_t len; - int s, nomatch, rval; + int s, nomatch, error; const char *reason = NULL; + struct addrinfo hints, *res; + + memset(&hints, 0, sizeof(hints)); + hints.ai_flags = 0; + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + error = getaddrinfo(server, "whois", &hints, &res); + if (error) { + warnx("%s: %s", server, gai_strerror(error)); + return (1); + } s = -1; - rval = 0; for (/*nothing*/; res; res = res->ai_next) { s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); if (s < 0) { @@ -237,13 +196,14 @@ whois(char *name, struct addrinfo *res, int flags) warn("%s", reason); else warn("unknown error in connection attempt"); - return (rval + 1); + freeaddrinfo(res); + return (1); } sfi = fdopen(s, "r"); sfo = fdopen(s, "w"); if (sfi == NULL || sfo == NULL) - err(EX_OSERR, "fdopen"); + err(1, "fdopen"); (void)fprintf(sfo, "%s\r\n", name); (void)fflush(sfo); nhost = NULL; @@ -261,7 +221,7 @@ whois(char *name, struct addrinfo *res, int flags) buf = nbuf; } - if ((flags & WHOIS_RECURSE) && !nhost && + if ((flags & WHOIS_RECURSE) && nhost == NULL && (p = strstr(buf, "Whois Server: "))) { p += sizeof("Whois Server: ") - 1; if ((len = strcspn(p, " \t\n\r"))) { @@ -271,8 +231,8 @@ whois(char *name, struct addrinfo *res, int flags) nhost[len] = '\0'; } } - if ((flags & WHOIS_INIC_FALLBACK) && !nhost && !nomatch && - (p = strstr(buf, "No match for \""))) { + if ((flags & WHOIS_INIC_FALLBACK) && nhost == NULL && + !nomatch && (p = strstr(buf, "No match for \""))) { p += sizeof("No match for \"") - 1; if ((len = strcspn(p, "\"")) && len == strlen(name) && strncasecmp(name, p, len) == 0) @@ -280,40 +240,57 @@ whois(char *name, struct addrinfo *res, int flags) } (void)puts(buf); } - if (nbuf) + if (nbuf != NULL) free(nbuf); /* Do second lookup as needed */ - if (nomatch && !nhost) { + if (nomatch && nhost == NULL) { (void)printf("Looking up %s at %s.\n\n", name, INICHOST); nhost = INICHOST; } if (nhost) { - 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) { - warnx("%s: %s", nhost, gai_strerror(error)); - return (rval + 1); - } + error += whois(name, nhost, 0); if (!nomatch) free(nhost); - rval += whois(name, res2, 0); - freeaddrinfo(res2); } - return (rval); + freeaddrinfo(res); + return (error); +} + +/* + * If no 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 (or VNICHOST + * if name is a handle that starts with a '!'). + */ +static char * +choose_server(const char *name, const char *country) +{ + static char *server; + const char *qhead; + size_t len; + + if (country != NULL) + qhead = country; + else if ((qhead = strrchr(name, '.')) == NULL) + return (*name == '!' ? VNICHOST : NICHOST); + else if (isdigit(*(++qhead))) + return (ANICHOST); + len = strlen(qhead) + sizeof(QNICHOST_TAIL); + if ((server = realloc(server, len)) == NULL) + err(1, "realloc"); + strlcpy(server, qhead, len); + strlcat(server, QNICHOST_TAIL, len); + return (server); } static __dead void usage(void) { + extern char *__progname; (void)fprintf(stderr, - "usage: whois [-adgilmpqQrR] [-h hostname] name ...\n"); - exit(EX_USAGE); + "usage: %s [-adgilmpqQrR6] [-c country-code | -h hostname] " + "name ...\n", __progname); + exit(1); } -- cgit v1.2.3