Stuff

1 files changed, 1309 insertions, 0 deletions

diff --git a/nfsmount.c b/nfsmount.c
new file mode 100644
index 000000000..f2bd2f49c
--- /dev/null
+++ b/nfsmount.c
@@ -0,0 +1,1309 @@
+/*
+ * nfsmount.c -- Linux NFS mount
+ * Copyright (C) 1993 Rick Sladkey <jrs@world.std.com>
+ *
+ * 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 2, 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.
+ *
+ * Wed Feb  8 12:51:48 1995, biro@yggdrasil.com (Ross Biro): allow all port
+ * numbers to be specified on the command line.
+ *
+ * Fri, 8 Mar 1996 18:01:39, Swen Thuemmler <swen@uni-paderborn.de>:
+ * Omit the call to connect() for Linux version 1.3.11 or later.
+ *
+ * Wed Oct  1 23:55:28 1997: Dick Streefland <dick_streefland@tasking.com>
+ * Implemented the "bg", "fg" and "retry" mount options for NFS.
+ *
+ * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@misiek.eu.org>
+ * - added Native Language Support
+ * 
+ */
+
+/*
+ * nfsmount.c,v 1.1.1.1 1993/11/18 08:40:51 jrs Exp
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <netdb.h>
+#include <rpc/rpc.h>
+#include <rpc/pmap_prot.h>
+#include <rpc/pmap_clnt.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/utsname.h>
+#include <sys/stat.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "nfsmount.h"
+
+#include <linux/nfs.h>
+/* we suppose that libc-dev is providing NFSv3 headers (kernel >= 2.2) */
+#include <linux/nfs_mount.h>
+
+#define _
+#define HAVE_inet_aton
+#define MS_REMOUNT	32	/* Alter flags of a mounted FS */
+#define sloppy 0
+#define EX_FAIL 1
+#define EX_BG 1
+#define xstrdup strdup
+#define xstrndup strndup
+
+
+static char *nfs_strerror(int stat);
+
+#define MAKE_VERSION(p,q,r)	(65536*(p) + 256*(q) + (r))
+
+static int
+linux_version_code(void) {
+	struct utsname my_utsname;
+	int p, q, r;
+
+	if (uname(&my_utsname) == 0) {
+		p = atoi(strtok(my_utsname.release, "."));
+		q = atoi(strtok(NULL, "."));
+		r = atoi(strtok(NULL, "."));
+		return MAKE_VERSION(p,q,r);
+	}
+	return 0;
+}
+
+/*
+ * nfs_mount_version according to the kernel sources seen at compile time.
+ */
+static int nfs_mount_version = NFS_MOUNT_VERSION;
+
+/*
+ * Unfortunately, the kernel prints annoying console messages
+ * in case of an unexpected nfs mount version (instead of
+ * just returning some error).  Therefore we'll have to try
+ * and figure out what version the kernel expects.
+ *
+ * Variables:
+ *	KERNEL_NFS_MOUNT_VERSION: kernel sources at compile time
+ *	NFS_MOUNT_VERSION: these nfsmount sources at compile time
+ *	nfs_mount_version: version this source and running kernel can handle
+ */
+static void
+find_kernel_nfs_mount_version(void) {
+	int kernel_version = linux_version_code();
+
+	if (kernel_version) {
+	     if (kernel_version < MAKE_VERSION(2,1,32))
+		  nfs_mount_version = 1;
+	     else
+		  nfs_mount_version = 3;
+	}
+	if (nfs_mount_version > NFS_MOUNT_VERSION)
+	     nfs_mount_version = NFS_MOUNT_VERSION;
+}
+
+int nfsmount(const char *spec, const char *node, unsigned long *flags,
+	     char **extra_opts, char **mount_opts, int running_bg)
+{
+	static char *prev_bg_host;
+	char hostdir[1024];
+	CLIENT *mclient;
+	char *hostname;
+	char *dirname;
+	char *old_opts;
+	char *mounthost=NULL;
+	char new_opts[1024];
+	fhandle root_fhandle;
+	struct timeval total_timeout;
+	enum clnt_stat clnt_stat;
+	static struct nfs_mount_data data;
+	char *opt, *opteq;
+	int val;
+	struct hostent *hp;
+	struct sockaddr_in server_addr;
+	struct sockaddr_in mount_server_addr;
+	int msock, fsock;
+	struct timeval retry_timeout;
+	struct fhstatus status;
+	struct stat statbuf;
+	char *s;
+	int port;
+	int mountport;
+	int bg;
+	int soft;
+	int intr;
+	int posix;
+	int nocto;
+	int noac;
+	int nolock;
+	int retry;
+	int tcp;
+	int mountprog;
+	int mountvers;
+	int nfsprog;
+	int nfsvers;
+	int retval;
+	time_t t;
+	time_t prevt;
+	time_t timeout;
+
+	find_kernel_nfs_mount_version();
+
+	retval = EX_FAIL;
+	msock = fsock = -1;
+	mclient = NULL;
+	if (strlen(spec) >= sizeof(hostdir)) {
+		fprintf(stderr, _("mount: "
+			"excessively long host:dir argument\n"));
+		goto fail;
+	}
+	strcpy(hostdir, spec);
+	if ((s = strchr(hostdir, ':'))) {
+		hostname = hostdir;
+		dirname = s + 1;
+		*s = '\0';
+		/* Ignore all but first hostname in replicated mounts
+		   until they can be fully supported. (mack@sgi.com) */
+		if ((s = strchr(hostdir, ','))) {
+			*s = '\0';
+			fprintf(stderr, _("mount: warning: "
+				"multiple hostnames not supported\n"));
+		}
+	} else {
+		fprintf(stderr, _("mount: "
+			"directory to mount not in host:dir format\n"));
+		goto fail;
+	}
+
+	server_addr.sin_family = AF_INET;
+#ifdef HAVE_inet_aton
+	if (!inet_aton(hostname, &server_addr.sin_addr))
+#endif
+	{
+		if ((hp = gethostbyname(hostname)) == NULL) {
+			fprintf(stderr, _("mount: can't get address for %s\n"),
+				hostname);
+			goto fail;
+		} else {
+			if (hp->h_length > sizeof(struct in_addr)) {
+				fprintf(stderr,
+					_("mount: got bad hp->h_length\n"));
+				hp->h_length = sizeof(struct in_addr);
+			}
+			memcpy(&server_addr.sin_addr,
+			       hp->h_addr, hp->h_length);
+		}
+	}
+
+	memcpy (&mount_server_addr, &server_addr, sizeof (mount_server_addr));
+
+	/* add IP address to mtab options for use when unmounting */
+
+	s = inet_ntoa(server_addr.sin_addr);
+	old_opts = *extra_opts;
+	if (!old_opts)
+		old_opts = "";
+	if (strlen(old_opts) + strlen(s) + 10 >= sizeof(new_opts)) {
+		fprintf(stderr, _("mount: "
+			"excessively long option argument\n"));
+		goto fail;
+	}
+	sprintf(new_opts, "%s%saddr=%s",
+		old_opts, *old_opts ? "," : "", s);
+	*extra_opts = xstrdup(new_opts);
+
+	/* Set default options.
+	 * rsize/wsize (and bsize, for ver >= 3) are left 0 in order to
+	 * let the kernel decide.
+	 * timeo is filled in after we know whether it'll be TCP or UDP. */
+	memset(&data, 0, sizeof(data));
+	data.retrans	= 3;
+	data.acregmin	= 3;
+	data.acregmax	= 60;
+	data.acdirmin	= 30;
+	data.acdirmax	= 60;
+#if NFS_MOUNT_VERSION >= 2
+	data.namlen	= NAME_MAX;
+#endif
+
+	bg = 0;
+	soft = 0;
+	intr = 0;
+	posix = 0;
+	nocto = 0;
+	nolock = 0;
+	noac = 0;
+	retry = 10000;		/* 10000 minutes ~ 1 week */
+	tcp = 0;
+
+	mountprog = MOUNTPROG;
+	mountvers = MOUNTVERS;
+	port = 0;
+	mountport = 0;
+	nfsprog = NFS_PROGRAM;
+	nfsvers = NFS_VERSION;
+
+	/* parse options */
+
+	for (opt = strtok(old_opts, ","); opt; opt = strtok(NULL, ",")) {
+		if ((opteq = strchr(opt, '='))) {
+			val = atoi(opteq + 1);	
+			*opteq = '\0';
+			if (!strcmp(opt, "rsize"))
+				data.rsize = val;
+			else if (!strcmp(opt, "wsize"))
+				data.wsize = val;
+			else if (!strcmp(opt, "timeo"))
+				data.timeo = val;
+			else if (!strcmp(opt, "retrans"))
+				data.retrans = val;
+			else if (!strcmp(opt, "acregmin"))
+				data.acregmin = val;
+			else if (!strcmp(opt, "acregmax"))
+				data.acregmax = val;
+			else if (!strcmp(opt, "acdirmin"))
+				data.acdirmin = val;
+			else if (!strcmp(opt, "acdirmax"))
+				data.acdirmax = val;
+			else if (!strcmp(opt, "actimeo")) {
+				data.acregmin = val;
+				data.acregmax = val;
+				data.acdirmin = val;
+				data.acdirmax = val;
+			}
+			else if (!strcmp(opt, "retry"))
+				retry = val;
+			else if (!strcmp(opt, "port"))
+				port = val;
+			else if (!strcmp(opt, "mountport"))
+			        mountport = val;
+			else if (!strcmp(opt, "mounthost"))
+			        mounthost=xstrndup(opteq+1,
+						  strcspn(opteq+1," \t\n\r,"));
+			else if (!strcmp(opt, "mountprog"))
+				mountprog = val;
+			else if (!strcmp(opt, "mountvers"))
+				mountvers = val;
+			else if (!strcmp(opt, "nfsprog"))
+				nfsprog = val;
+			else if (!strcmp(opt, "nfsvers") ||
+				 !strcmp(opt, "vers"))
+				nfsvers = val;
+			else if (!strcmp(opt, "proto")) {
+				if (!strncmp(opteq+1, "tcp", 3))
+					tcp = 1;
+				else if (!strncmp(opteq+1, "udp", 3))
+					tcp = 0;
+				else
+					printf(_("Warning: Unrecognized proto= option.\n"));
+			} else if (!strcmp(opt, "namlen")) {
+#if NFS_MOUNT_VERSION >= 2
+				if (nfs_mount_version >= 2)
+					data.namlen = val;
+				else
+#endif
+				printf(_("Warning: Option namlen is not supported.\n"));
+			} else if (!strcmp(opt, "addr"))
+				/* ignore */;
+			else {
+				printf(_("unknown nfs mount parameter: "
+				       "%s=%d\n"), opt, val);
+				goto fail;
+			}
+		}
+		else {
+			val = 1;
+			if (!strncmp(opt, "no", 2)) {
+				val = 0;
+				opt += 2;
+			}
+			if (!strcmp(opt, "bg")) 
+				bg = val;
+			else if (!strcmp(opt, "fg")) 
+				bg = !val;
+			else if (!strcmp(opt, "soft"))
+				soft = val;
+			else if (!strcmp(opt, "hard"))
+				soft = !val;
+			else if (!strcmp(opt, "intr"))
+				intr = val;
+			else if (!strcmp(opt, "posix"))
+				posix = val;
+			else if (!strcmp(opt, "cto"))
+				nocto = !val;
+			else if (!strcmp(opt, "ac"))
+				noac = !val;
+			else if (!strcmp(opt, "tcp"))
+				tcp = val;
+			else if (!strcmp(opt, "udp"))
+				tcp = !val;
+			else if (!strcmp(opt, "lock")) {
+				if (nfs_mount_version >= 3)
+					nolock = !val;
+				else
+					printf(_("Warning: option nolock is not supported.\n"));
+			} else {
+				if (!sloppy) {
+					printf(_("unknown nfs mount option: "
+					       "%s%s\n"), val ? "" : "no", opt);
+					goto fail;
+				}
+			}
+		}
+	}
+	data.flags = (soft ? NFS_MOUNT_SOFT : 0)
+		| (intr ? NFS_MOUNT_INTR : 0)
+		| (posix ? NFS_MOUNT_POSIX : 0)
+		| (nocto ? NFS_MOUNT_NOCTO : 0)
+		| (noac ? NFS_MOUNT_NOAC : 0);
+#if NFS_MOUNT_VERSION >= 2
+	if (nfs_mount_version >= 2)
+		data.flags |= (tcp ? NFS_MOUNT_TCP : 0);
+#endif
+#if NFS_MOUNT_VERSION >= 3
+	if (nfs_mount_version >= 3)
+		data.flags |= (nolock ? NFS_MOUNT_NONLM : 0);
+#endif
+
+	/* Adjust options if none specified */
+	if (!data.timeo)
+		data.timeo = tcp ? 70 : 7;
+
+#ifdef NFS_MOUNT_DEBUG
+	printf("rsize = %d, wsize = %d, timeo = %d, retrans = %d\n",
+		data.rsize, data.wsize, data.timeo, data.retrans);
+	printf("acreg (min, max) = (%d, %d), acdir (min, max) = (%d, %d)\n",
+		data.acregmin, data.acregmax, data.acdirmin, data.acdirmax);
+	printf("port = %d, bg = %d, retry = %d, flags = %.8x\n",
+		port, bg, retry, data.flags);
+	printf("mountprog = %d, mountvers = %d, nfsprog = %d, nfsvers = %d\n",
+		mountprog, mountvers, nfsprog, nfsvers);
+	printf("soft = %d, intr = %d, posix = %d, nocto = %d, noac = %d\n",
+		(data.flags & NFS_MOUNT_SOFT) != 0,
+		(data.flags & NFS_MOUNT_INTR) != 0,
+		(data.flags & NFS_MOUNT_POSIX) != 0,
+		(data.flags & NFS_MOUNT_NOCTO) != 0,
+		(data.flags & NFS_MOUNT_NOAC) != 0);
+#if NFS_MOUNT_VERSION >= 2
+	printf("tcp = %d\n",
+		(data.flags & NFS_MOUNT_TCP) != 0);
+#endif
+#endif
+
+	data.version = nfs_mount_version;
+	*mount_opts = (char *) &data;
+
+	if (*flags & MS_REMOUNT)
+		return 0;
+
+	/*
+	 * If the previous mount operation on the same host was
+	 * backgrounded, and the "bg" for this mount is also set,
+	 * give up immediately, to avoid the initial timeout.
+	 */
+	if (bg && !running_bg &&
+	    prev_bg_host && strcmp(hostname, prev_bg_host) == 0) {
+		if (retry > 0)
+			retval = EX_BG;
+		return retval;
+	}
+
+	/* create mount deamon client */
+	/* See if the nfs host = mount host. */
+	if (mounthost) {
+	  if (mounthost[0] >= '0' && mounthost[0] <= '9') {
+	    mount_server_addr.sin_family = AF_INET;
+	    mount_server_addr.sin_addr.s_addr = inet_addr(hostname);
+	  } else {
+		  if ((hp = gethostbyname(mounthost)) == NULL) {
+			  fprintf(stderr, _("mount: can't get address for %s\n"),
+				  hostname);
+			  goto fail;
+		  } else {
+			  if (hp->h_length > sizeof(struct in_addr)) {
+				  fprintf(stderr,
+					  _("mount: got bad hp->h_length?\n"));
+				  hp->h_length = sizeof(struct in_addr);
+			  }
+			  mount_server_addr.sin_family = AF_INET;
+			  memcpy(&mount_server_addr.sin_addr,
+				 hp->h_addr, hp->h_length);
+		  }
+	  }
+	}
+
+	/*
+	 * The following loop implements the mount retries. On the first
+	 * call, "running_bg" is 0. When the mount times out, and the
+	 * "bg" option is set, the exit status EX_BG will be returned.
+	 * For a backgrounded mount, there will be a second call by the
+	 * child process with "running_bg" set to 1.
+	 *
+	 * The case where the mount point is not present and the "bg"
+	 * option is set, is treated as a timeout. This is done to
+	 * support nested mounts.
+	 *
+	 * The "retry" count specified by the user is the number of
+	 * minutes to retry before giving up.
+	 *
+	 * Only the first error message will be displayed.
+	 */
+	retry_timeout.tv_sec = 3;
+	retry_timeout.tv_usec = 0;
+	total_timeout.tv_sec = 20;
+	total_timeout.tv_usec = 0;
+	timeout = time(NULL) + 60 * retry;
+	prevt = 0;
+	t = 30;
+	val = 1;
+	for (;;) {
+		if (bg && stat(node, &statbuf) == -1) {
+			if (running_bg) {
+				sleep(val);	/* 1, 2, 4, 8, 16, 30, ... */
+				val *= 2;
+				if (val > 30)
+					val = 30;
+			}
+		} else {
+			/* be careful not to use too many CPU cycles */
+			if (t - prevt < 30)
+				sleep(30);
+
+			/* contact the mount daemon via TCP */
+			mount_server_addr.sin_port = htons(mountport);
+			msock = RPC_ANYSOCK;
+			mclient = clnttcp_create(&mount_server_addr,
+						 mountprog, mountvers,
+						 &msock, 0, 0);
+
+			/* if this fails, contact the mount daemon via UDP */
+			if (!mclient) {
+				mount_server_addr.sin_port = htons(mountport);
+				msock = RPC_ANYSOCK;
+				mclient = clntudp_create(&mount_server_addr,
+							 mountprog, mountvers,
+							 retry_timeout, &msock);
+			}
+			if (mclient) {
+				/* try to mount hostname:dirname */
+				mclient->cl_auth = authunix_create_default();
+				clnt_stat = clnt_call(mclient, MOUNTPROC_MNT,
+					(xdrproc_t) xdr_dirpath, (caddr_t) &dirname,
+					(xdrproc_t) xdr_fhstatus, (caddr_t) &status,
+					total_timeout);
+				if (clnt_stat == RPC_SUCCESS)
+					break;		/* we're done */
+				if (errno != ECONNREFUSED) {
+					clnt_perror(mclient, "mount");
+					goto fail;	/* don't retry */
+				}
+				if (!running_bg && prevt == 0)
+					clnt_perror(mclient, "mount");
+				auth_destroy(mclient->cl_auth);
+				clnt_destroy(mclient);
+				mclient = 0;
+				close(msock);
+			} else {
+				if (!running_bg && prevt == 0)
+					clnt_pcreateerror("mount");
+			}
+			prevt = t;
+		}
+		if (!bg)
+		        goto fail;
+		if (!running_bg) {
+			prev_bg_host = xstrdup(hostname);
+			if (retry > 0)
+				retval = EX_BG;
+			goto fail;
+		}
+		t = time(NULL);
+		if (t >= timeout)
+			goto fail;
+	}
+
+	if (status.fhs_status != 0) {
+		fprintf(stderr,
+			_("mount: %s:%s failed, reason given by server: %s\n"),
+			hostname, dirname, nfs_strerror(status.fhs_status));
+		goto fail;
+	}
+	memcpy((char *) &root_fhandle, (char *) status.fhstatus_u.fhs_fhandle,
+		sizeof (root_fhandle));
+
+	/* create nfs socket for kernel */
+
+	if (tcp) {
+		if (nfs_mount_version < 3) {
+	     		printf(_("NFS over TCP is not supported.\n"));
+			goto fail;
+		}
+		fsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	} else
+		fsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+	if (fsock < 0) {
+		perror(_("nfs socket"));
+		goto fail;
+	}
+	if (bindresvport(fsock, 0) < 0) {
+		perror(_("nfs bindresvport"));
+		goto fail;
+	}
+	if (port == 0) {
+		server_addr.sin_port = PMAPPORT;
+		port = pmap_getport(&server_addr, nfsprog, nfsvers,
+			tcp ? IPPROTO_TCP : IPPROTO_UDP);
+		if (port == 0)
+			port = NFS_PORT;
+#ifdef NFS_MOUNT_DEBUG
+		else
+			printf(_("used portmapper to find NFS port\n"));
+#endif
+	}
+#ifdef NFS_MOUNT_DEBUG
+	printf(_("using port %d for nfs deamon\n"), port);
+#endif
+	server_addr.sin_port = htons(port);
+	 /*
+	  * connect() the socket for kernels 1.3.10 and below only,
+	  * to avoid problems with multihomed hosts.
+	  * --Swen
+	  */
+	if (linux_version_code() <= 66314
+	    && connect(fsock, (struct sockaddr *) &server_addr,
+		       sizeof (server_addr)) < 0) {
+		perror(_("nfs connect"));
+		goto fail;
+	}
+
+	/* prepare data structure for kernel */
+
+	data.fd = fsock;
+	memcpy((char *) &data.root, (char *) &root_fhandle,
+		sizeof (root_fhandle));
+	memcpy((char *) &data.addr, (char *) &server_addr, sizeof(data.addr));
+	strncpy(data.hostname, hostname, sizeof(data.hostname));
+
+	/* clean up */
+
+	auth_destroy(mclient->cl_auth);
+	clnt_destroy(mclient);
+	close(msock);
+	return 0;
+
+	/* abort */
+
+fail:
+	if (msock != -1) {
+		if (mclient) {
+			auth_destroy(mclient->cl_auth);
+			clnt_destroy(mclient);
+		}
+		close(msock);
+	}
+	if (fsock != -1)
+		close(fsock);
+	return retval;
+}	
+
+/*
+ * We need to translate between nfs status return values and
+ * the local errno values which may not be the same.
+ *
+ * Andreas Schwab <schwab@LS5.informatik.uni-dortmund.de>: change errno:
+ * "after #include <errno.h> the symbol errno is reserved for any use,
+ *  it cannot even be used as a struct tag or field name".
+ */
+
+#ifndef EDQUOT
+#define EDQUOT	ENOSPC
+#endif
+
+static struct {
+	enum nfs_stat stat;
+	int errnum;
+} nfs_errtbl[] = {
+	{ NFS_OK,		0		},
+	{ NFSERR_PERM,		EPERM		},
+	{ NFSERR_NOENT,		ENOENT		},
+	{ NFSERR_IO,		EIO		},
+	{ NFSERR_NXIO,		ENXIO		},
+	{ NFSERR_ACCES,		EACCES		},
+	{ NFSERR_EXIST,		EEXIST		},
+	{ NFSERR_NODEV,		ENODEV		},
+	{ NFSERR_NOTDIR,	ENOTDIR		},
+	{ NFSERR_ISDIR,		EISDIR		},
+#ifdef NFSERR_INVAL
+	{ NFSERR_INVAL,		EINVAL		},	/* that Sun forgot */
+#endif
+	{ NFSERR_FBIG,		EFBIG		},
+	{ NFSERR_NOSPC,		ENOSPC		},
+	{ NFSERR_ROFS,		EROFS		},
+	{ NFSERR_NAMETOOLONG,	ENAMETOOLONG	},
+	{ NFSERR_NOTEMPTY,	ENOTEMPTY	},
+	{ NFSERR_DQUOT,		EDQUOT		},
+	{ NFSERR_STALE,		ESTALE		},
+#ifdef EWFLUSH
+	{ NFSERR_WFLUSH,	EWFLUSH		},
+#endif
+	/* Throw in some NFSv3 values for even more fun (HP returns these) */
+	{ 71,			EREMOTE		},
+
+	{ -1,			EIO		}
+};
+
+static char *nfs_strerror(int stat)
+{
+	int i;
+	static char buf[256];
+
+	for (i = 0; nfs_errtbl[i].stat != -1; i++) {
+		if (nfs_errtbl[i].stat == stat)
+			return strerror(nfs_errtbl[i].errnum);
+	}
+	sprintf(buf, _("unknown nfs status return value: %d"), stat);
+	return buf;
+}
+
+#if 0
+int
+my_getport(struct in_addr server, struct timeval *timeo, ...)
+{
+        struct sockaddr_in sin;
+        struct pmap     pmap;
+        CLIENT          *clnt;
+        int             sock = RPC_ANYSOCK, port;
+
+        pmap.pm_prog = prog;
+        pmap.pm_vers = vers;
+        pmap.pm_prot = prot;
+        pmap.pm_port = 0;
+        sin.sin_family = AF_INET;
+        sin.sin_addr = server;
+        sin.sin_port = htons(111);
+        clnt = clntudp_create(&sin, 100000, 2, *timeo, &sock);
+        status = clnt_call(clnt, PMAP_GETPORT,
+                                &pmap, (xdrproc_t) xdr_pmap,
+                                &port, (xdrproc_t) xdr_uint);
+        if (status != SUCCESS) {
+	     /* natter */
+                port = 0;
+        }
+
+        clnt_destroy(clnt);
+        close(sock);
+        return port;
+}
+#endif
+
+
+
+
+
+
+
+
+
+
+
+/*
+ * Please do not edit this file.
+ * It was generated using rpcgen.
+ */
+
+#include <rpc/types.h>
+#include <rpc/xdr.h>
+
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user or with the express written consent of
+ * Sun Microsystems, Inc.
+ *
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+/*
+ * Copyright (c) 1985, 1990 by Sun Microsystems, Inc.
+ */
+
+/* from @(#)mount.x	1.3 91/03/11 TIRPC 1.0 */
+
+bool_t
+xdr_fhandle(XDR *xdrs, fhandle objp)
+{
+
+	 if (!xdr_opaque(xdrs, objp, FHSIZE)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_fhstatus(XDR *xdrs, fhstatus *objp)
+{
+
+	 if (!xdr_u_int(xdrs, &objp->fhs_status)) {
+		 return (FALSE);
+	 }
+	switch (objp->fhs_status) {
+	case 0:
+		 if (!xdr_fhandle(xdrs, objp->fhstatus_u.fhs_fhandle)) {
+			 return (FALSE);
+		 }
+		break;
+	default:
+		break;
+	}
+	return (TRUE);
+}
+
+bool_t
+xdr_dirpath(XDR *xdrs, dirpath *objp)
+{
+
+	 if (!xdr_string(xdrs, objp, MNTPATHLEN)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_name(XDR *xdrs, name *objp)
+{
+
+	 if (!xdr_string(xdrs, objp, MNTNAMLEN)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_mountlist(XDR *xdrs, mountlist *objp)
+{
+
+	 if (!xdr_pointer(xdrs, (char **)objp, sizeof(struct mountbody), (xdrproc_t)xdr_mountbody)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_mountbody(XDR *xdrs, mountbody *objp)
+{
+
+	 if (!xdr_name(xdrs, &objp->ml_hostname)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_dirpath(xdrs, &objp->ml_directory)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_mountlist(xdrs, &objp->ml_next)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_groups(XDR *xdrs, groups *objp)
+{
+
+	 if (!xdr_pointer(xdrs, (char **)objp, sizeof(struct groupnode), (xdrproc_t)xdr_groupnode)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_groupnode(XDR *xdrs, groupnode *objp)
+{
+
+	 if (!xdr_name(xdrs, &objp->gr_name)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_groups(xdrs, &objp->gr_next)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_exports(XDR *xdrs, exports *objp)
+{
+
+	 if (!xdr_pointer(xdrs, (char **)objp, sizeof(struct exportnode), (xdrproc_t)xdr_exportnode)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_exportnode(XDR *xdrs, exportnode *objp)
+{
+
+	 if (!xdr_dirpath(xdrs, &objp->ex_dir)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_groups(xdrs, &objp->ex_groups)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_exports(xdrs, &objp->ex_next)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+bool_t
+xdr_ppathcnf(XDR *xdrs, ppathcnf *objp)
+{
+
+	 register long *buf;
+
+	 int i;
+
+	 if (xdrs->x_op == XDR_ENCODE) {
+	 buf = (long*)XDR_INLINE(xdrs,6 * BYTES_PER_XDR_UNIT);
+	   if (buf == NULL) {
+		 if (!xdr_int(xdrs, &objp->pc_link_max)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_max_canon)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_max_input)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_name_max)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_path_max)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_pipe_buf)) {
+			 return (FALSE);
+		 }
+
+	  }
+	  else {
+		 IXDR_PUT_LONG(buf,objp->pc_link_max);
+		 IXDR_PUT_SHORT(buf,objp->pc_max_canon);
+		 IXDR_PUT_SHORT(buf,objp->pc_max_input);
+		 IXDR_PUT_SHORT(buf,objp->pc_name_max);
+		 IXDR_PUT_SHORT(buf,objp->pc_path_max);
+		 IXDR_PUT_SHORT(buf,objp->pc_pipe_buf);
+	  }
+	 if (!xdr_u_char(xdrs, &objp->pc_vdisable)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_char(xdrs, &objp->pc_xxx)) {
+		 return (FALSE);
+	 }
+		buf = (long*)XDR_INLINE(xdrs,   2  * BYTES_PER_XDR_UNIT);
+		if (buf == NULL) {
+		 if (!xdr_vector(xdrs, (char *)objp->pc_mask, 2, sizeof(short), (xdrproc_t)xdr_short)) {
+			 return (FALSE);
+		 }
+
+	  }
+	  else {
+		{ register short *genp; 
+		  for ( i = 0,genp=objp->pc_mask;
+ 			i < 2; i++){
+				 IXDR_PUT_SHORT(buf,*genp++);
+		   }
+		 };
+	  }
+
+ 	 return (TRUE);
+	} else if (xdrs->x_op == XDR_DECODE) {
+	 buf = (long*)XDR_INLINE(xdrs,6 * BYTES_PER_XDR_UNIT);
+	   if (buf == NULL) {
+		 if (!xdr_int(xdrs, &objp->pc_link_max)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_max_canon)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_max_input)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_name_max)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_path_max)) {
+			 return (FALSE);
+		 }
+		 if (!xdr_short(xdrs, &objp->pc_pipe_buf)) {
+			 return (FALSE);
+		 }
+
+	  }
+	  else {
+		 objp->pc_link_max = IXDR_GET_LONG(buf);
+		 objp->pc_max_canon = IXDR_GET_SHORT(buf);
+		 objp->pc_max_input = IXDR_GET_SHORT(buf);
+		 objp->pc_name_max = IXDR_GET_SHORT(buf);
+		 objp->pc_path_max = IXDR_GET_SHORT(buf);
+		 objp->pc_pipe_buf = IXDR_GET_SHORT(buf);
+	  }
+	 if (!xdr_u_char(xdrs, &objp->pc_vdisable)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_char(xdrs, &objp->pc_xxx)) {
+		 return (FALSE);
+	 }
+		buf = (long*)XDR_INLINE(xdrs,   2  * BYTES_PER_XDR_UNIT);
+		if (buf == NULL) {
+		 if (!xdr_vector(xdrs, (char *)objp->pc_mask, 2, sizeof(short), (xdrproc_t)xdr_short)) {
+			 return (FALSE);
+		 }
+
+	  }
+	  else {
+		{ register short *genp; 
+		  for ( i = 0,genp=objp->pc_mask;
+ 			i < 2; i++){
+				 *genp++ = IXDR_GET_SHORT(buf);
+		   }
+		 };
+	  }
+	 return(TRUE);
+	}
+
+	 if (!xdr_int(xdrs, &objp->pc_link_max)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_short(xdrs, &objp->pc_max_canon)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_short(xdrs, &objp->pc_max_input)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_short(xdrs, &objp->pc_name_max)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_short(xdrs, &objp->pc_path_max)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_short(xdrs, &objp->pc_pipe_buf)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_u_char(xdrs, &objp->pc_vdisable)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_char(xdrs, &objp->pc_xxx)) {
+		 return (FALSE);
+	 }
+	 if (!xdr_vector(xdrs, (char *)objp->pc_mask, 2, sizeof(short), (xdrproc_t)xdr_short)) {
+		 return (FALSE);
+	 }
+	return (TRUE);
+}
+
+
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user or with the express written consent of
+ * Sun Microsystems, Inc.
+ *
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+/*
+ * Copyright (c) 1985, 1990 by Sun Microsystems, Inc.
+ */
+
+/* from @(#)mount.x	1.3 91/03/11 TIRPC 1.0 */
+
+#include <string.h>            /* for memset() */
+
+/* Default timeout can be changed using clnt_control() */
+static struct timeval TIMEOUT = { 25, 0 };
+
+void *
+mountproc_null_1(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static char clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_NULL, (xdrproc_t) xdr_void, argp, (xdrproc_t) xdr_void, &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return ((void *)&clnt_res);
+}
+
+fhstatus *
+mountproc_mnt_1(argp, clnt)
+	dirpath *argp;
+	CLIENT *clnt;
+{
+	static fhstatus clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_MNT, (xdrproc_t) xdr_dirpath,
+		      (caddr_t) argp, (xdrproc_t) xdr_fhstatus,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}
+
+mountlist *
+mountproc_dump_1(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static mountlist clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_DUMP, (xdrproc_t) xdr_void,
+		      (caddr_t) argp, (xdrproc_t) xdr_mountlist,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}
+
+void *
+mountproc_umnt_1(argp, clnt)
+	dirpath *argp;
+	CLIENT *clnt;
+{
+	static char clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_UMNT, (xdrproc_t) xdr_dirpath,
+		      (caddr_t) argp, (xdrproc_t) xdr_void,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return ((void *)&clnt_res);
+}
+
+void *
+mountproc_umntall_1(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static char clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_UMNTALL, (xdrproc_t) xdr_void,
+		      (caddr_t) argp, (xdrproc_t) xdr_void,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return ((void *)&clnt_res);
+}
+
+exports *
+mountproc_export_1(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static exports clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_EXPORT, (xdrproc_t) xdr_void,
+		      (caddr_t) argp, (xdrproc_t) xdr_exports,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}
+
+exports *
+mountproc_exportall_1(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static exports clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_EXPORTALL, (xdrproc_t) xdr_void,
+		      (caddr_t) argp, (xdrproc_t) xdr_exports,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+	  return (NULL);
+	}
+	return (&clnt_res);
+}
+
+void *
+mountproc_null_2(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static char clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_NULL, (xdrproc_t) xdr_void, argp, (xdrproc_t) xdr_void, &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return ((void *)&clnt_res);
+}
+
+fhstatus *
+mountproc_mnt_2(argp, clnt)
+	dirpath *argp;
+	CLIENT *clnt;
+{
+	static fhstatus clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_MNT, (xdrproc_t) xdr_dirpath,
+		      (caddr_t) argp, (xdrproc_t) xdr_fhstatus,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}
+
+mountlist *
+mountproc_dump_2(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static mountlist clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_DUMP, (xdrproc_t) xdr_void, argp,
+		      (xdrproc_t) xdr_mountlist, (caddr_t) &clnt_res,
+		      TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}
+
+void *
+mountproc_umnt_2(argp, clnt)
+	dirpath *argp;
+	CLIENT *clnt;
+{
+	static char clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_UMNT, (xdrproc_t) xdr_dirpath,
+		      (caddr_t) argp, (xdrproc_t) xdr_void,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return ((void *)&clnt_res);
+}
+
+void *
+mountproc_umntall_2(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static char clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_UMNTALL, (xdrproc_t) xdr_void,
+		      (caddr_t) argp, (xdrproc_t) xdr_void,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return ((void *)&clnt_res);
+}
+
+exports *
+mountproc_export_2(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static exports clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_EXPORT, (xdrproc_t) xdr_void,
+		      argp, (xdrproc_t) xdr_exports, (caddr_t) &clnt_res,
+		      TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}
+
+exports *
+mountproc_exportall_2(argp, clnt)
+	void *argp;
+	CLIENT *clnt;
+{
+	static exports clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_EXPORTALL, (xdrproc_t) xdr_void, argp,
+		      (xdrproc_t) xdr_exports, (caddr_t) &clnt_res,
+		      TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}
+
+ppathcnf *
+mountproc_pathconf_2(argp, clnt)
+	dirpath *argp;
+	CLIENT *clnt;
+{
+	static ppathcnf clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call(clnt, MOUNTPROC_PATHCONF, (xdrproc_t) xdr_dirpath,
+		      (caddr_t) argp, (xdrproc_t) xdr_ppathcnf,
+		      (caddr_t) &clnt_res, TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}
+
+
+
+