1 files changed, 125 insertions, 0 deletions
diff --git a/usr.sbin/nscd/agent.c b/usr.sbin/nscd/agent.c
new file mode 100644
index 000000000000..f44cc1071bd5
--- /dev/null
+++ b/usr.sbin/nscd/agent.c
@@ -0,0 +1,125 @@
+/*-
+ * Copyright (c) 2005 Michael Bushkov <bushman@rsu.ru>
+ * 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.
+ *
+ * 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.
+ *
+ */
+
+#include <sys/cdefs.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "agent.h"
+#include "debug.h"
+
+static int
+agent_cmp_func(const void *a1, const void *a2)
+{
+   	struct agent const *ap1 = *((struct agent const **)a1);
+	struct agent const *ap2 = *((struct agent const **)a2);
+	int res;
+
+	res = strcmp(ap1->name, ap2->name);
+	if (res == 0) {
+		if (ap1->type == ap2->type)
+			res = 0;
+		else if (ap1->type < ap2->type)
+			res = -1;
+		else
+			res = 1;
+	}
+
+	return (res);
+}
+
+struct agent_table *
+init_agent_table(void)
+{
+   	struct agent_table	*retval;
+
+	TRACE_IN(init_agent_table);
+	retval = calloc(1, sizeof(*retval));
+	assert(retval != NULL);
+
+	TRACE_OUT(init_agent_table);
+	return (retval);
+}
+
+void
+register_agent(struct agent_table *at, struct agent *a)
+{
+	struct agent **new_agents;
+    	size_t new_agents_num;
+
+	TRACE_IN(register_agent);
+	assert(at != NULL);
+	assert(a != NULL);
+	new_agents_num = at->agents_num + 1;
+	new_agents = malloc(sizeof(*new_agents) *
+		new_agents_num);
+	assert(new_agents != NULL);
+	memcpy(new_agents, at->agents, at->agents_num * sizeof(struct agent *));
+	new_agents[new_agents_num - 1] = a;
+	qsort(new_agents, new_agents_num, sizeof(struct agent *),
+		agent_cmp_func);
+
+	free(at->agents);
+	at->agents = new_agents;
+	at->agents_num = new_agents_num;
+    	TRACE_OUT(register_agent);
+}
+
+struct agent *
+find_agent(struct agent_table *at, const char *name, enum agent_type type)
+{
+	struct agent **res;
+	struct agent model, *model_p;
+
+	TRACE_IN(find_agent);
+	model.name = (char *)name;
+	model.type = type;
+	model_p = &model;
+	res = bsearch(&model_p, at->agents, at->agents_num,
+		sizeof(struct agent *), agent_cmp_func);
+
+	TRACE_OUT(find_agent);
+	return ( res == NULL ? NULL : *res);
+}
+
+void
+destroy_agent_table(struct agent_table *at)
+{
+    	size_t i;
+
+	TRACE_IN(destroy_agent_table);
+	assert(at != NULL);
+	for (i = 0; i < at->agents_num; ++i) {
+		free(at->agents[i]->name);
+		free(at->agents[i]);
+	}
+
+	free(at->agents);
+	free(at);
+	TRACE_OUT(destroy_agent_table);
+}