NIS client toolbox. This centralizes code which is duplicated all over

our tree.

Sponsored by:	DARPA, NAI Labs.

1 files changed, 129 insertions, 0 deletions

diff --git a/lib/libypclnt/ypclnt_passwd.c b/lib/libypclnt/ypclnt_passwd.c
new file mode 100644
index 0000000..b472db0
--- /dev/null
+++ b/lib/libypclnt/ypclnt_passwd.c
@@ -0,0 +1,129 @@
+/*-
+ * Copyright (c) 2002 Networks Associates Technology, Inc.
+ * All rights reserved.
+ *
+ * This software was developed for the FreeBSD Project by ThinkSec AS and
+ * NAI Labs, the Security Research Division of Network Associates, Inc.
+ * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
+ * DARPA CHATS research program.
+ *
+ * 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 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <err.h>
+#include <errno.h>
+#include <pwd.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <rpcsvc/ypclnt.h>
+#include <rpcsvc/yppasswd.h>
+
+#include "ypclnt.h"
+
+int
+ypclnt_passwd(ypclnt_t *ypclnt, const struct passwd *pwd, const char *passwd)
+{
+	struct yppasswd yppwd;
+	struct rpc_err rpcerr;
+	CLIENT *clnt = NULL;
+	int ret, *result;
+
+	/* check that rpc.yppasswdd is running */
+	if (getrpcport(ypclnt->server, YPPASSWDPROG,
+		YPPASSWDPROC_UPDATE, IPPROTO_UDP) == 0) {
+		ypclnt_error(ypclnt, __func__, "no rpc.yppasswdd on server");
+		return (-1);
+	}
+
+	/* fill the yppasswd structure */
+	memset(&yppwd, 0, sizeof yppwd);
+	yppwd.newpw.pw_uid = pwd->pw_uid;
+	yppwd.newpw.pw_gid = pwd->pw_gid;
+	if ((yppwd.newpw.pw_name = strdup(pwd->pw_name)) == NULL ||
+	    (yppwd.newpw.pw_passwd = strdup(pwd->pw_passwd)) == NULL ||
+	    (yppwd.newpw.pw_gecos = strdup(pwd->pw_gecos)) == NULL ||
+	    (yppwd.newpw.pw_dir = strdup(pwd->pw_dir)) == NULL ||
+	    (yppwd.newpw.pw_shell = strdup(pwd->pw_shell)) == NULL ||
+	    (yppwd.oldpass = strdup(passwd)) == NULL) {
+		ypclnt_error(ypclnt, __func__, strerror(errno));
+		ret = -1;
+		goto done;
+	}
+
+	/* connect to rpc.yppasswdd */
+	clnt = clnt_create(ypclnt->server, YPPASSWDPROG, YPPASSWDVERS, "udp");
+	if (clnt == NULL) {
+		ypclnt_error(ypclnt, __func__,
+		    "failed to connect to rpc.yppasswdd: %s",
+		    clnt_spcreateerror(ypclnt->server));
+		ret = -1;
+		goto done;
+	}
+	clnt->cl_auth = authunix_create_default();
+
+	/* request the update */
+	result = yppasswdproc_update_1(&yppwd, clnt);
+
+	/* check for RPC errors */
+	clnt_geterr(clnt, &rpcerr);
+	if (rpcerr.re_status != RPC_SUCCESS) {
+		ypclnt_error(ypclnt, __func__,
+		    "NIS password update failed: %s",
+		    clnt_sperror(clnt, ypclnt->server));
+		ret = -1;
+		goto done;
+	}
+
+	/* check the result of the update */
+	if (result == NULL || *result != 0) {
+		ypclnt_error(ypclnt, __func__,
+		    "NIS password update failed");
+		/* XXX how do we get more details? */
+		ret = -1;
+		goto done;
+	}
+
+	ypclnt_error(ypclnt, NULL, NULL);
+	ret = 0;
+
+ done:
+	if (clnt != NULL) {
+		auth_destroy(clnt->cl_auth);
+		clnt_destroy(clnt);
+	}
+	free(yppwd.newpw.pw_name);
+	free(yppwd.newpw.pw_passwd);
+	free(yppwd.newpw.pw_gecos);
+	free(yppwd.newpw.pw_dir);
+	free(yppwd.newpw.pw_shell);
+	if (yppwd.oldpass != NULL) {
+		memset(yppwd.oldpass, 0, strlen(yppwd.oldpass));
+		free(yppwd.oldpass);
+	}
+	return (ret);
+}