OpenSolaris Launch

1 files changed, 147 insertions, 0 deletions

diff --git a/usr/src/lib/libresolv2/common/irs/lcl.c b/usr/src/lib/libresolv2/common/irs/lcl.c
new file mode 100644
index 0000000000..3d86033209
--- /dev/null
+++ b/usr/src/lib/libresolv2/common/irs/lcl.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright 1997-2002 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ * Copyright (c) 1996-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#if !defined(LINT) && !defined(CODECENTER)
+static const char rcsid[] = "$Id: lcl.c,v 1.17 2001/05/29 05:49:02 marka Exp $";
+#endif
+
+/* Imports */
+
+#include "port_before.h"
+
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <netinet/in.h> 
+#include <arpa/nameser.h>
+#include <resolv.h>
+
+#include <isc/memcluster.h>
+
+#include <irs.h>
+
+#include "port_after.h"
+
+#include "irs_p.h"
+#include "lcl_p.h"
+
+/* Forward. */
+
+static void		lcl_close(struct irs_acc *);
+static struct __res_state *	lcl_res_get(struct irs_acc *);
+static void		lcl_res_set(struct irs_acc *, struct __res_state *,
+				void (*)(void *));
+
+/* Public */
+
+struct irs_acc *
+irs_lcl_acc(const char *options) {
+	struct irs_acc *acc;
+	struct lcl_p *lcl;
+
+	UNUSED(options);
+
+	if (!(acc = memget(sizeof *acc))) {
+		errno = ENOMEM;
+		return (NULL);
+	}
+	memset(acc, 0x5e, sizeof *acc);
+	if (!(lcl = memget(sizeof *lcl))) {
+		errno = ENOMEM;
+		free(acc);
+		return (NULL);
+	}
+	memset(lcl, 0x5e, sizeof *lcl);
+	lcl->res = NULL;
+	lcl->free_res = NULL;
+	acc->private = lcl;
+#ifdef WANT_IRS_GR
+	acc->gr_map = irs_lcl_gr;
+#else
+	acc->gr_map = NULL;
+#endif
+#ifdef WANT_IRS_PW
+	acc->pw_map = irs_lcl_pw;
+#else
+	acc->pw_map = NULL;
+#endif
+	acc->sv_map = irs_lcl_sv;
+	acc->pr_map = irs_lcl_pr;
+	acc->ho_map = irs_lcl_ho;
+	acc->nw_map = irs_lcl_nw;
+	acc->ng_map = irs_lcl_ng;
+	acc->res_get = lcl_res_get;
+	acc->res_set = lcl_res_set;
+	acc->close = lcl_close;
+	return (acc);
+}
+
+/* Methods */
+static struct __res_state *
+lcl_res_get(struct irs_acc *this) {
+	struct lcl_p *lcl = (struct lcl_p *)this->private;
+
+	if (lcl->res == NULL) {
+		struct __res_state *res;
+		res = (struct __res_state *)malloc(sizeof *res);
+		if (res == NULL)
+			return (NULL);
+		memset(res, 0, sizeof *res);
+		lcl_res_set(this, res, free);
+	}
+
+	if ((lcl->res->options & RES_INIT) == 0 &&
+	    res_ninit(lcl->res) < 0)
+		return (NULL);
+
+	return (lcl->res);
+}
+
+static void
+lcl_res_set(struct irs_acc *this, struct __res_state *res,
+		void (*free_res)(void *)) {
+	struct lcl_p *lcl = (struct lcl_p *)this->private;
+
+	if (lcl->res && lcl->free_res) {
+		res_nclose(lcl->res);
+		(*lcl->free_res)(lcl->res);
+	}
+
+	lcl->res = res;
+	lcl->free_res = free_res;
+}
+
+static void
+lcl_close(struct irs_acc *this) {
+	struct lcl_p *lcl = (struct lcl_p *)this->private;
+
+	if (lcl) {
+		if (lcl->free_res)
+			(*lcl->free_res)(lcl->res);
+		memput(lcl, sizeof *lcl);
+	}
+	memput(this, sizeof *this);
+}