1 files changed, 81 insertions, 8 deletions

diff --git a/utils/nfsd/nfsd.c b/utils/nfsd/nfsd.c
index 05506ee..d0bbfb3 100644
--- a/utils/nfsd/nfsd.c
+++ b/utils/nfsd/nfsd.c
@@ -20,15 +20,35 @@
 #include <getopt.h>
 #include <syslog.h>
 #include <netdb.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
 #include "nfslib.h"
 
 static void	usage(const char *);
 
+static struct option longopts[] =
+{
+	{ "host", 1, 0, 'H' },
+	{ "help", 0, 0, 'h' },
+	{ "no-nfs-version", 1, 0, 'N' },
+	{ "no-tcp", 0, 0, 'T' },
+	{ "no-udp", 0, 0, 'U' },
+	{ "port", 1, 0, 'P' },
+	{ "port", 1, 0, 'p' },
+	{ NULL, 0, 0, 0 }
+};
+unsigned int protobits = NFSCTL_ALLBITS;
+unsigned int versbits = NFSCTL_ALLBITS;
+char *haddr = NULL;
+
 int
 main(int argc, char **argv)
 {
-	int	count = 1, c, error, port, fd;
+	int	count = 1, c, error, port, fd, found_one;
 	struct servent *ent;
+	struct hostent *hp;
 
 	ent = getservbyname ("nfs", "udp");
 	if (ent != NULL)
@@ -36,8 +56,19 @@ main(int argc, char **argv)
 	else
 		port = 2049;
 
-	while ((c = getopt(argc, argv, "hp:P:")) != EOF) {
+	while ((c = getopt_long(argc, argv, "H:hN:p:P:TU", longopts, NULL)) != EOF) {
 		switch(c) {
+		case 'H':
+			if (inet_addr(optarg) != INADDR_NONE) {
+				haddr = strdup(optarg);
+			} else if ((hp = gethostbyname(optarg)) != NULL) {
+				haddr = inet_ntoa((*(struct in_addr*)(hp->h_addr_list[0])));
+			} else {
+				fprintf(stderr, "%s: Unknown hostname: %s\n",
+					argv[0], optarg);
+				usage(argv [0]);
+			}
+			break;
 		case 'P':	/* XXX for nfs-server compatibility */
 		case 'p':
 			port = atoi(optarg);
@@ -47,12 +78,54 @@ 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':
+		case 'T':
+				NFSCTL_TCPUNSET(protobits);
+				break;
+		case 'U':
+				NFSCTL_UDPUNSET(protobits);
+				break;
 		default:
+			fprintf(stderr, "Invalid argument: '%c'\n", c);
+		case 'h':
 			usage(argv[0]);
 		}
 	}
+	/*
+	 * Do some sanity checking, if the ctlbits are set
+	 */
+	if (!NFSCTL_UDPISSET(protobits) && !NFSCTL_TCPISSET(protobits)) {
+		fprintf(stderr, "invalid protocol specified\n");
+		exit(1);
+	}
+	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 (NFSCTL_VERISSET(versbits, 4) && !NFSCTL_TCPISSET(versbits)) {
+		fprintf(stderr, "version 4 requires the TCP protocol\n");
+		exit(1);
+	}
+	if (haddr == NULL) {
+		struct in_addr in = {INADDR_ANY}; 
+		haddr = strdup(inet_ntoa(in));
+	}
 
 	if (chdir(NFS_STATEDIR)) {
 		fprintf(stderr, "%s: chdir(%s) failed: %s\n",
@@ -69,7 +142,6 @@ 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
@@ -84,9 +156,9 @@ main(int argc, char **argv)
 	}
 	closeall(3);
 
-	if ((error = nfssvc(port, count)) < 0) {
+	openlog("nfsd", LOG_PID, LOG_DAEMON);
+	if ((error = nfssvc(port, count, versbits, protobits, haddr)) < 0) {
 		int e = errno;
-		openlog("nfsd", LOG_PID, LOG_DAEMON);
 		syslog(LOG_ERR, "nfssvc: %s", strerror(e));
 		closelog();
 	}
@@ -97,7 +169,8 @@ main(int argc, char **argv)
 static void
 usage(const char *prog)
 {
-	fprintf(stderr, "usage:\n"
-			"%s nrservs\n", prog);
+	fprintf(stderr, "Usage:\n"
+		"%s [-H hostname] [-p|-P|--port port] [-N|--no-nfs-version version ] [-T|--no-tcp] [-U|--no-udp] nrservs\n", 
+		prog);
 	exit(2);
 }