Initial Contribution

libc/netbsd/net/getservbyport_r.c

@@ -0,0 +1,65 @@
+/*	$NetBSD: getservbyport_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $	*/
+
+/*
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)getservbyport.c	8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: getservbyport_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <netdb.h>
+#include <string.h>
+
+#include "servent.h"
+
+struct servent *
+getservbyport_r(int port, const char *proto, struct servent *sp,
+    struct servent_data *sd)
+{
+	struct servent *s;
+
+	setservent_r(sd->stayopen, sd);
+	while ((s = getservent_r(sp, sd)) != NULL) {
+		if (s->s_port != port)
+			continue;
+		if (proto == NULL || strcmp(s->s_proto, proto) == 0)
+			break;
+	}
+	if (!sd->stayopen)
+		if (sd->fp != NULL) {
+			(void)fclose(sd->fp);
+			sd->fp = NULL;
+		}
+	return s;
+}