1 files changed, 151 insertions, 0 deletions
diff --git a/lib/smbconf/smbconf_util.c b/lib/smbconf/smbconf_util.c
new file mode 100644
index 0000000000..5eb5e963ed
--- /dev/null
+++ b/lib/smbconf/smbconf_util.c
@@ -0,0 +1,151 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  libsmbconf - Samba configuration library, utility functions
+ *  Copyright (C) Michael Adam 2008
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+#include "smbconf_private.h"
+
+
+static int smbconf_destroy_ctx(struct smbconf_ctx *ctx)
+{
+	return ctx->ops->shutdown(ctx);
+}
+
+/**
+ * Initialize the configuration.
+ *
+ * This should be the first function in a sequence of calls to smbconf
+ * functions:
+ *
+ * Upon success, this creates and returns the conf context
+ * that should be passed around in subsequent calls to the other
+ * smbconf functions.
+ *
+ * After the work with the configuration is completed, smbconf_shutdown()
+ * should be called.
+ */
+WERROR smbconf_init_internal(TALLOC_CTX *mem_ctx, struct smbconf_ctx **conf_ctx,
+			     const char *path, struct smbconf_ops *ops)
+{
+	WERROR werr = WERR_OK;
+	struct smbconf_ctx *ctx;
+
+	if (conf_ctx == NULL) {
+		return WERR_INVALID_PARAM;
+	}
+
+	ctx = TALLOC_ZERO_P(mem_ctx, struct smbconf_ctx);
+	if (ctx == NULL) {
+		return WERR_NOMEM;
+	}
+
+	ctx->ops = ops;
+
+	werr = ctx->ops->init(ctx, path);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto fail;
+	}
+
+	talloc_set_destructor(ctx, smbconf_destroy_ctx);
+
+	*conf_ctx = ctx;
+	return werr;
+
+fail:
+	talloc_free(ctx);
+	return werr;
+}
+
+
+/**
+ * add a string to a talloced array of strings.
+ */
+WERROR smbconf_add_string_to_array(TALLOC_CTX *mem_ctx,
+				   char ***array,
+				   uint32_t count,
+				   const char *string)
+{
+	char **new_array = NULL;
+
+	if (array == NULL) {
+		return WERR_INVALID_PARAM;
+	}
+
+	new_array = TALLOC_REALLOC_ARRAY(mem_ctx, *array, char *, count + 1);
+	if (new_array == NULL) {
+		return WERR_NOMEM;
+	}
+
+	if (string == NULL) {
+		new_array[count] = NULL;
+	} else {
+		new_array[count] = talloc_strdup(new_array, string);
+		if (new_array[count] == NULL) {
+			talloc_free(new_array);
+			return WERR_NOMEM;
+		}
+	}
+
+	*array = new_array;
+
+	return WERR_OK;
+}
+
+bool smbconf_find_in_array(const char *string, char **list,
+			   uint32_t num_entries, uint32_t *entry)
+{
+	uint32_t i;
+
+	if (list == NULL) {
+		return false;
+	}
+
+	for (i = 0; i < num_entries; i++) {
+		if (((string == NULL) && (list[i] == NULL)) ||
+		    strequal(string, list[i]))
+		{
+			if (entry != NULL) {
+				*entry = i;
+			}
+			return true;
+		}
+	}
+
+	return false;
+}
+
+bool smbconf_reverse_find_in_array(const char *string, char **list,
+				   uint32_t num_entries, uint32_t *entry)
+{
+	int32_t i;
+
+	if ((string == NULL) || (list == NULL) || (num_entries == 0)) {
+		return false;
+	}
+
+	for (i = num_entries - 1; i >= 0; i--) {
+		if (strequal(string, list[i])) {
+			if (entry != NULL) {
+				*entry = i;
+			}
+			return true;
+		}
+	}
+
+	return false;
+}