1 files changed, 255 insertions, 0 deletions
diff --git a/usr.bin/ypwhich/ypwhich.c b/usr.bin/ypwhich/ypwhich.c
new file mode 100644
index 0000000..b31dcae
--- /dev/null
+++ b/usr.bin/ypwhich/ypwhich.c
@@ -0,0 +1,255 @@
+/*
+ * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <rpc/rpc.h>
+#include <rpc/xdr.h>
+#include <rpcsvc/yp_prot.h>
+#include <rpcsvc/ypclnt.h>
+
+#include <netinet/in.h>
+
+#include <arpa/inet.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define ERR_USAGE	1	/* bad arguments - display 'usage' message */
+#define ERR_NOSUCHHOST	2	/* no such host */
+#define ERR_NOBINDING	3	/* error from ypbind -- domain not bound */
+#define ERR_NOYPBIND	4	/* ypbind not running */
+#define ERR_NOMASTER	5	/* could not find master server */
+
+extern bool_t xdr_domainname();
+
+struct ypalias {
+	char *alias, *name;
+} ypaliases[] = {
+	{ "passwd", "passwd.byname" },
+	{ "master.passwd", "master.passwd.byname" },
+	{ "shadow", "shadow.byname" },
+	{ "group", "group.byname" },
+	{ "networks", "networks.byaddr" },
+	{ "hosts", "hosts.byaddr" },
+	{ "protocols", "protocols.bynumber" },
+	{ "services", "services.byname" },
+	{ "aliases", "mail.aliases" },
+	{ "ethers", "ethers.byname" },
+};
+
+static void
+usage(void)
+{
+	fprintf(stderr, "%s\n%s\n",
+		"usage: ypwhich [-d domain] [[-t] -m [mname] | host]",
+		"       ypwhich -x");
+	exit(ERR_USAGE);
+}
+
+
+/*
+ * Like yp_bind except can query a specific host
+ */
+static int
+bind_host(char *dom, struct sockaddr_in *lsin)
+{
+	struct hostent *hent = NULL;
+	struct ypbind_resp ypbr;
+	struct timeval tv;
+	CLIENT *client;
+	int sock, r;
+	struct in_addr ss_addr;
+
+	sock = RPC_ANYSOCK;
+	tv.tv_sec = 15;
+	tv.tv_usec = 0;
+	client = clntudp_create(lsin, YPBINDPROG, YPBINDVERS, tv, &sock);
+	if (client == NULL) {
+		warnx("can't clntudp_create: %s", yperr_string(YPERR_YPBIND));
+		return (YPERR_YPBIND);
+	}
+
+	tv.tv_sec = 5;
+	tv.tv_usec = 0;
+	r = clnt_call(client, YPBINDPROC_DOMAIN,
+		(xdrproc_t)xdr_domainname, &dom,
+		(xdrproc_t)xdr_ypbind_resp, &ypbr, tv);
+	if (r != RPC_SUCCESS) {
+		warnx("can't clnt_call: %s", yperr_string(YPERR_YPBIND));
+		clnt_destroy(client);
+		return (YPERR_YPBIND);
+	} else {
+		if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
+			warnx("can't yp_bind: reason: %s",
+				ypbinderr_string(ypbr.ypbind_respbody.ypbind_error));
+			clnt_destroy(client);
+			return (r);
+		}
+	}
+	clnt_destroy(client);
+
+	ss_addr = ypbr.ypbind_respbody.ypbind_bindinfo.ypbind_binding_addr;
+	/*printf("%08x\n", ss_addr);*/
+	hent = gethostbyaddr((char *)&ss_addr, sizeof(ss_addr), AF_INET);
+	if (hent)
+		printf("%s\n", hent->h_name);
+	else
+		printf("%s\n", inet_ntoa(ss_addr));
+	return (0);
+}
+
+int
+main(int argc, char *argv[])
+{
+	char *domnam = NULL, *master;
+	char *map = NULL;
+	struct ypmaplist *ypml, *y;
+	struct hostent *hent;
+	struct sockaddr_in lsin;
+	int notrans, mode;
+	int c, r;
+	u_int i;
+
+	notrans = mode = 0;
+	while ((c = getopt(argc, argv, "xd:mt")) != -1)
+		switch (c) {
+		case 'x':
+			for (i = 0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
+				printf("\"%s\" is an alias for \"%s\"\n",
+					ypaliases[i].alias,
+					ypaliases[i].name);
+			exit(0);
+		case 'd':
+			domnam = optarg;
+			break;
+		case 't':
+			notrans++;
+			break;
+		case 'm':
+			mode++;
+			break;
+		default:
+			usage();
+		}
+
+	if (!domnam)
+		yp_get_default_domain(&domnam);
+
+	if (mode == 0) {
+		switch (argc-optind) {
+		case 0:
+			bzero(&lsin, sizeof lsin);
+			lsin.sin_family = AF_INET;
+			lsin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+			if (bind_host(domnam, &lsin))
+				exit(ERR_NOBINDING);
+			break;
+		case 1:
+			bzero(&lsin, sizeof lsin);
+			lsin.sin_family = AF_INET;
+			if ((lsin.sin_addr.s_addr = inet_addr(argv[optind])) == INADDR_NONE) {
+				hent = gethostbyname(argv[optind]);
+				if (!hent)
+					errx(ERR_NOSUCHHOST, "host %s unknown", argv[optind]);
+				bcopy((char *)hent->h_addr_list[0],
+					(char *)&lsin.sin_addr, sizeof lsin.sin_addr);
+			}
+			if (bind_host(domnam, &lsin))
+				exit(ERR_NOBINDING);
+			break;
+		default:
+			usage();
+		}
+		exit(0);
+	}
+
+	if (argc-optind > 1)
+		usage();
+
+	if (argv[optind]) {
+		map = argv[optind];
+		for (i = 0; (!notrans) && i<sizeof ypaliases/sizeof ypaliases[0]; i++)
+			if (strcmp(map, ypaliases[i].alias) == 0)
+				map = ypaliases[i].name;
+		r = yp_master(domnam, map, &master);
+		switch (r) {
+		case 0:
+			printf("%s\n", master);
+			free(master);
+			break;
+		case YPERR_YPBIND:
+			errx(ERR_NOYPBIND, "not running ypbind");
+		default:
+			errx(ERR_NOMASTER, "can't find master for map %s: reason: %s",
+				map, yperr_string(r));
+		}
+		exit(0);
+	}
+
+	ypml = NULL;
+	r = yp_maplist(domnam, &ypml);
+	switch (r) {
+	case 0:
+		for (y = ypml; y;) {
+			ypml = y;
+			r = yp_master(domnam, ypml->ypml_name, &master);
+			switch (r) {
+			case 0:
+				printf("%s %s\n", ypml->ypml_name, master);
+				free(master);
+				break;
+			default:
+				warnx("can't find the master of %s: reason: %s",
+					ypml->ypml_name, yperr_string(r));
+				break;
+			}
+			y = ypml->ypml_next;
+			free(ypml);
+		}
+		break;
+	case YPERR_YPBIND:
+		errx(ERR_NOYPBIND, "not running ypbind");
+	default:
+		errx(ERR_NOMASTER, "can't get map list for domain %s: reason: %s",
+			domnam, yperr_string(r));
+	}
+	exit(0);
+}