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/*
* nfsd
*
* This is the user level part of nfsd. This is very primitive, because
* all the work is now done in the kernel module.
*
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <getopt.h>
#include <syslog.h>
#include <netdb.h>
#include "nfslib.h"
static void usage(const char *);
int
main(int argc, char **argv)
{
int count = 1, c, error, port, fd;
struct servent *ent;
ent = getservbyname ("nfs", "udp");
if (ent != NULL)
port = ntohs (ent->s_port);
else
port = 2049;
while ((c = getopt(argc, argv, "hp:P:")) != EOF) {
switch(c) {
case 'P': /* XXX for nfs-server compatibility */
case 'p':
port = atoi(optarg);
if (port <= 0 || port > 65535) {
fprintf(stderr, "%s: bad port number: %s\n",
argv[0], optarg);
usage(argv [0]);
}
break;
break;
case 'h':
default:
usage(argv[0]);
}
}
if (chdir(NFS_STATEDIR)) {
fprintf(stderr, "%s: chdir(%s) failed: %s\n",
argv [0], NFS_STATEDIR, strerror(errno));
exit(1);
}
if (optind < argc) {
if ((count = atoi(argv[optind])) < 0) {
/* insane # of servers */
fprintf(stderr,
"%s: invalid server count (%d), using 1\n",
argv[0], count);
count = 1;
}
}
/* KLUDGE ALERT:
Some kernels let nfsd kernel threads inherit open files
from the program that spawns them (i.e. us). So close
everything before spawning kernel threads. --Chip */
fd = open("/dev/null", O_RDWR);
if (fd == -1)
perror("/dev/null");
else {
(void) dup2(fd, 0);
(void) dup2(fd, 1);
(void) dup2(fd, 2);
}
fd = sysconf(_SC_OPEN_MAX);
while (--fd > 2)
(void) close(fd);
if ((error = nfssvc(port, count)) < 0) {
int e = errno;
openlog("nfsd", LOG_PID, LOG_DAEMON);
syslog(LOG_ERR, "nfssvc: %s", strerror(e));
closelog();
}
return (error != 0);
}
static void
usage(const char *prog)
{
fprintf(stderr, "usage:\n"
"%s nrservs\n", prog);
exit(2);
}
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