initial import of NetBSD tree

1 files changed, 157 insertions, 0 deletions

diff --git a/sbin/mount_portal/pt_tcp.c b/sbin/mount_portal/pt_tcp.c
new file mode 100644
index 00000000000..ee9b97fd68e
--- /dev/null
+++ b/sbin/mount_portal/pt_tcp.c
@@ -0,0 +1,157 @@
+/*	$NetBSD: pt_tcp.c,v 1.9 1995/05/21 15:33:22 mycroft Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software donated to Berkeley by
+ * Jan-Simon Pendry.
+ *
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ *
+ *	from: Id: pt_tcp.c,v 1.1 1992/05/25 21:43:09 jsp Exp
+ *	@(#)pt_tcp.c	8.3 (Berkeley) 3/27/94
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <strings.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/syslog.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#include "portald.h"
+
+/*
+ * Key will be tcp/host/port[/"priv"]
+ * Create a TCP socket connected to the
+ * requested host and port.
+ * Some trailing suffix values have special meanings.
+ * An unrecognised suffix is an error.
+ */
+int portal_tcp(pcr, key, v, kso, fdp)
+struct portal_cred *pcr;
+char *key;
+char **v;
+int kso;
+int *fdp;
+{
+	char host[MAXHOSTNAMELEN];
+	char port[MAXHOSTNAMELEN];
+	char *p = key + (v[1] ? strlen(v[1]) : 0);
+	char *q;
+	struct hostent *hp;
+	struct servent *sp;
+	struct in_addr **ipp;
+	struct in_addr *ip[2];
+	struct in_addr ina;
+	int s_port;
+	int priv = 0;
+	struct sockaddr_in sain;
+
+	q = strchr(p, '/');
+	if (q == 0 || q - p >= sizeof(host))
+		return (EINVAL);
+	*q = '\0';
+	strcpy(host, p);
+	p = q + 1;
+
+	q = strchr(p, '/');
+	if (q)
+		*q = '\0';
+	if (strlen(p) >= sizeof(port))
+		return (EINVAL);
+	strcpy(port, p);
+	if (q) {
+		p = q + 1;
+		if (strcmp(p, "priv") == 0) {
+			if (pcr->pcr_uid == 0)
+				priv = 1;
+			else
+				return (EPERM);
+		} else {
+			return (EINVAL);
+		}
+	}
+
+	if (inet_aton(host, &ina) == 0) {
+		hp = gethostbyname(host);
+		if (hp == 0)
+			return (EINVAL);
+		ipp = (struct in_addr **) hp->h_addr_list;
+	} else {
+		ip[0] = &ina;
+		ip[1] = 0;
+		ipp = ip;
+	}
+
+	sp = getservbyname(port, "tcp");
+	if (sp != 0)
+		s_port = sp->s_port;
+	else {
+		s_port = htons(atoi(port));
+		if (s_port == 0)
+			return (EINVAL);
+	}
+
+	memset(&sain, 0, sizeof(sain));
+	sain.sin_len = sizeof(sain);
+	sain.sin_family = AF_INET;
+	sain.sin_port = s_port;
+
+	while (ipp[0]) {
+		int so;
+
+		if (priv)
+			so = rresvport((int *) 0);
+		else
+			so = socket(AF_INET, SOCK_STREAM, 0);
+		if (so < 0) {
+			syslog(LOG_ERR, "socket: %m");
+			return (errno);
+		}
+
+		sain.sin_addr = *ipp[0];
+		if (connect(so, (struct sockaddr *) &sain, sizeof(sain)) == 0) {
+			*fdp = so;
+			return (0);
+		}
+		(void) close(so);
+
+		ipp++;
+	}
+
+	return (errno);
+}