X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=blobdiff_plain;f=utils%2Fnfsd%2Fnfsd.c;h=fa6ee71fdd6443245511a4b105df891017106905;hp=772f72df54693751550eac1c9fbe978d427720b9;hb=fde2ae7794047a698feeaf17963d690a1e660a80;hpb=ac84b80afc13d5a96813e678ad5c86c6036f022e

diff --git a/utils/nfsd/nfsd.c b/utils/nfsd/nfsd.c
index 772f72d..fa6ee71 100644
--- a/utils/nfsd/nfsd.c
+++ b/utils/nfsd/nfsd.c
@@ -7,7 +7,9 @@
  * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
  */
 
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -17,20 +19,32 @@
 #include <errno.h>
 #include <getopt.h>
 #include <syslog.h>
+#include <netdb.h>
 #include "nfslib.h"
 
 static void	usage(const char *);
 
+static struct option longopts[] =
+{
+	{ "help", 0, 0, 'h' },
+	{ "no-nfs-version", 1, 0, 'N' },
+	{ NULL, 0, 0, 0 }
+};
+unsigned int versbits = NFSCTL_ALLBITS;
+
 int
 main(int argc, char **argv)
 {
-	int	count = 1, c, error, port, fd;
-
-	port = 2049;
+	int	count = 1, c, error, port, fd, found_one;
+	struct servent *ent;
 
-	/* FIXME: Check for nfs in /etc/services */
+	ent = getservbyname ("nfs", "udp");
+	if (ent != NULL)
+		port = ntohs (ent->s_port);
+	else
+		port = 2049;
 
-	while ((c = getopt(argc, argv, "hp:P:")) != EOF) {
+	while ((c = getopt_long(argc, argv, "hN:p:P:", longopts, NULL)) != EOF) {
 		switch(c) {
 		case 'P':	/* XXX for nfs-server compatibility */
 		case 'p':
@@ -41,12 +55,36 @@ main(int argc, char **argv)
 				usage(argv [0]);
 			}
 			break;
+		case 'N':
+			switch((c = atoi(optarg))) {
+			case 2:
+			case 3:
+			case 4:
+				NFSCTL_VERUNSET(versbits, c);
+				break;
+			default:
+				fprintf(stderr, "%c: Unsupported version\n", c);
+				exit(1);
+			}
 			break;
-		case 'h':
 		default:
+			fprintf(stderr, "Invalid argument: '%c'\n", c);
+		case 'h':
 			usage(argv[0]);
 		}
 	}
+	/*
+	 * Do some sanity checking, if the ctlbits are set
+	 */
+	found_one = 0;
+	for (c = NFSD_MINVERS; c <= NFSD_MAXVERS; c++) {
+		if (NFSCTL_VERISSET(versbits, c))
+			found_one = 1;
+	}
+	if (!found_one) {
+		fprintf(stderr, "no version specified\n");
+		exit(1);
+	}			
 
 	if (chdir(NFS_STATEDIR)) {
 		fprintf(stderr, "%s: chdir(%s) failed: %s\n",
@@ -63,7 +101,6 @@ main(int argc, char **argv)
 			count = 1;
 		}
 	}
-
 	/* KLUDGE ALERT:
 	   Some kernels let nfsd kernel threads inherit open files
 	   from the program that spawns them (i.e. us).  So close
@@ -76,13 +113,11 @@ main(int argc, char **argv)
 		(void) dup2(fd, 1);
 		(void) dup2(fd, 2);
 	}
-	fd = sysconf(_SC_OPEN_MAX);
-	while (--fd > 2)
-		(void) close(fd);
+	closeall(3);
 
-	if ((error = nfssvc(port, count)) < 0) {
+	openlog("nfsd", LOG_PID, LOG_DAEMON);
+	if ((error = nfssvc(port, count, versbits)) < 0) {
 		int e = errno;
-		openlog("nfsd", LOG_PID, LOG_DAEMON);
 		syslog(LOG_ERR, "nfssvc: %s", strerror(e));
 		closelog();
 	}
@@ -93,7 +128,8 @@ main(int argc, char **argv)
 static void
 usage(const char *prog)
 {
-	fprintf(stderr, "usage:\n"
-			"%s nrservs\n", prog);
+	fprintf(stderr, "Usage:\n"
+		"%s [-p|-P|--port port] [-N|--no-nfs-version version ] nrservs\n", 
+		prog);
 	exit(2);
 }