r19456: Add an example application for ldb using the tdb backend

(This used to be commit 778198f279b374222c737e5eda1c47efc2dce39c)

1 files changed, 241 insertions, 0 deletions

diff --git a/source4/lib/ldb/nssldb/ldb-pwd.c b/source4/lib/ldb/nssldb/ldb-pwd.c
new file mode 100644
index 0000000000..e4bafdcf7c
--- /dev/null
+++ b/source4/lib/ldb/nssldb/ldb-pwd.c
@@ -0,0 +1,241 @@
+/* 
+   LDB nsswitch module
+
+   Copyright (C) Simo Sorce 2006
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, write to the
+   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA  02111-1307, USA.   
+*/
+
+#include "ldb-nss.h"
+
+extern struct _ldb_nss_context *_ldb_nss_ctx;
+
+const char *_ldb_nss_pw_attrs[] = {
+	"uid",
+	"userPassword",
+	"uidNumber",
+	"gidNumber",
+	"gecos",
+	"homeDirectory",
+	"loginShell",
+	NULL
+};
+
+NSS_STATUS _nss_ldb_setpwent(void)
+{
+	int ret;
+	ret = _ldb_nss_init();
+	if (ret != NSS_STATUS_SUCCESS) {
+		return ret;
+	}
+
+	_ldb_nss_ctx->pw_cur = 0;
+	if (_ldb_nss_ctx->pw_res != NULL) {
+		talloc_free(_ldb_nss_ctx->pw_res);
+		_ldb_nss_ctx->pw_res = NULL;
+	}
+
+	ret = ldb_search(_ldb_nss_ctx->ldb,
+			 _ldb_nss_ctx->base,
+			 LDB_SCOPE_SUBTREE,
+			 _LDB_NSS_PWENT_FILTER,
+			 _ldb_nss_pw_attrs,
+			 &_ldb_nss_ctx->pw_res);
+	if (ret != LDB_SUCCESS) {
+		return NSS_STATUS_UNAVAIL;
+	}
+
+	return NSS_STATUS_SUCCESS;
+}
+
+NSS_STATUS _nss_ldb_endpwent(void)
+{
+	int ret;
+
+	ret = _ldb_nss_init();
+	if (ret != NSS_STATUS_SUCCESS) {
+		return ret;
+	}
+
+	_ldb_nss_ctx->pw_cur = 0;
+	if (_ldb_nss_ctx->pw_res) {
+		talloc_free(_ldb_nss_ctx->pw_res);
+		_ldb_nss_ctx->pw_res = NULL;
+	}
+
+	return NSS_STATUS_SUCCESS;
+}
+
+NSS_STATUS _nss_ldb_getpwent_r(struct passwd *result_buf,
+				char *buffer,
+				int buflen,
+				int *errnop)
+{
+	int ret;
+
+	ret = _ldb_nss_init();
+	if (ret != NSS_STATUS_SUCCESS) {
+		return ret;
+	}
+
+	*errnop = 0;
+
+	if (_ldb_nss_ctx->pw_cur >= _ldb_nss_ctx->pw_res->count) {
+		/* already returned all entries */
+		return NSS_STATUS_NOTFOUND;
+	}
+
+	ret = _ldb_nss_fill_passwd(result_buf,
+				   buffer,
+				   buflen,
+				   errnop,
+				   _ldb_nss_ctx->pw_res->msgs[_ldb_nss_ctx->pw_cur]);
+	if (ret != NSS_STATUS_SUCCESS) {
+		return ret;
+	}
+
+	_ldb_nss_ctx->pw_cur++;
+
+	return NSS_STATUS_SUCCESS;
+}
+
+NSS_STATUS _nss_ldb_getpwuid_r(uid_t uid, struct passwd *result_buf, char *buffer, size_t buflen, int *errnop)
+{
+	int ret;
+	char *filter;
+	struct ldb_result *res;
+
+	if (uid == 0) { /* we don't serve root uid by policy */
+		*errnop = errno = ENOENT;
+		return NSS_STATUS_NOTFOUND;
+	}
+
+	ret = _ldb_nss_init();
+	if (ret != NSS_STATUS_SUCCESS) {
+		return ret;
+	}
+
+	/* build the filter for this uid */
+	filter = talloc_asprintf(_ldb_nss_ctx, _LDB_NSS_PWUID_FILTER, uid);
+	if (filter == NULL) {
+		/* this is a fatal error */
+		*errnop = errno = ENOMEM;
+		ret = NSS_STATUS_UNAVAIL;
+		goto done;
+	}
+
+	/* search the entry */
+	ret = ldb_search(_ldb_nss_ctx->ldb,
+			 _ldb_nss_ctx->base,
+			 LDB_SCOPE_SUBTREE,
+			 filter,
+			 _ldb_nss_pw_attrs,
+			 &res);
+	if (ret != LDB_SUCCESS) {
+		/* this is a fatal error */
+		*errnop = errno = ENOENT;
+		ret = NSS_STATUS_UNAVAIL;
+		goto done;
+	}
+
+	/* if none found return */
+	if (res->count == 0) {
+		*errnop = errno = ENOENT;
+		ret = NSS_STATUS_NOTFOUND;
+		goto done;
+	}
+
+	if (res->count != 1) {
+		/* this is a fatal error */
+		*errnop = errno = ENOENT;
+		ret = NSS_STATUS_UNAVAIL;
+		goto done;
+	}
+
+	/* fill in the passwd struct */
+	ret = _ldb_nss_fill_passwd(result_buf,
+				   buffer,
+				   buflen,
+				   errnop,
+				   res->msgs[0]);
+
+done:
+	talloc_free(filter);
+	talloc_free(res);
+	return ret;
+}
+
+NSS_STATUS _nss_ldb_getpwnam_r(const char *name, struct passwd *result_buf, char *buffer, size_t buflen, int *errnop)
+{
+	int ret;
+	char *filter;
+	struct ldb_result *res;
+
+	ret = _ldb_nss_init();
+	if (ret != NSS_STATUS_SUCCESS) {
+		return ret;
+	}
+
+	/* build the filter for this name */
+	filter = talloc_asprintf(_ldb_nss_ctx, _LDB_NSS_PWNAM_FILTER, name);
+	if (filter == NULL) {
+		/* this is a fatal error */
+		*errnop = errno = ENOENT;
+		ret = NSS_STATUS_UNAVAIL;
+		goto done;
+	}
+
+	/* search the entry */
+	ret = ldb_search(_ldb_nss_ctx->ldb,
+			 _ldb_nss_ctx->base,
+			 LDB_SCOPE_SUBTREE,
+			 filter,
+			 _ldb_nss_pw_attrs,
+			 &res);
+	if (ret != LDB_SUCCESS) {
+		/* this is a fatal error */
+		*errnop = errno = ENOENT;
+		ret = NSS_STATUS_UNAVAIL;
+		goto done;
+	}
+
+	/* if none found return */
+	if (res->count == 0) {
+		*errnop = errno = ENOENT;
+		ret = NSS_STATUS_NOTFOUND;
+		goto done;
+	}
+
+	if (res->count != 1) {
+		/* this is a fatal error */
+		*errnop = errno = ENOENT;
+		ret = NSS_STATUS_UNAVAIL;
+		goto done;
+	}
+
+	/* fill in the passwd struct */
+	ret = _ldb_nss_fill_passwd(result_buf,
+				   buffer,
+				   buflen,
+				   errnop,
+				   res->msgs[0]);
+
+done:
+	talloc_free(filter);
+	talloc_free(res);
+	return ret;
+}
+