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more fix to daemonize

/*
 *
 * Copyright (c) 2003 The Regents of the University of California.  All 
 * rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - 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.
 *
 */

#include "fusdd_net_i.h"
 
/*
 *  FUSDd_net.c
 *
 *  Remote device support for FUSD
 *
 */

/* global state variable */
struct fusdnet state = {};

/*
 *  Log support
 */

void nlog(int loglevel, char *fmt, ...)
{
  va_list ap;
  char buf[4096];
  int buflen = 0;
  struct timeval tv;
  char timebuf[64];
  time_t tmp;

  va_start(ap, fmt);

  /* prepend the string parsed by emrun, if needed */
  gettimeofday(&tv, NULL);
  tmp = tv.tv_sec;
  strcpy(timebuf, asctime(localtime(&tmp)));
  memmove(timebuf+23, timebuf+19, 8);
  sprintf(timebuf+19, ".%03d", (int) tv.tv_usec/1000);
  BUFPRINTF("%s: ", timebuf);

  vsnprintf(buf+buflen, sizeof(buf)-buflen-1, fmt, ap);
  buflen = strlen(buf); // retval from vsprintf is wacky
  
  /* take off extra CRLFs, if there (some messages have them, some don't) */
  while (buf[buflen-1] == '\n' || buf[buflen-1] == '\r')
    buflen--;
  
  /* make room for trailing CR */
  if (buflen >= (sizeof(buf)-2))
    buflen = sizeof(buf)-2;
  
  /* and append a final CR: */
  buf[buflen++] = '\n';
  buf[buflen] = 0;

  /* emit the log message */
  logring_write(state.log, buf);
  fprintf(stderr, "%s\n", buf);
  va_end(ap);
}


/*
 *  Status handler
 */
 
static 
int fusdnet_status_print(status_context_t *ctx, buf_t *buf)
{
  fn_t *fn = sd_data(ctx);
  //fnc_status_print(fn, buf);
  fns_status_print(fn, buf);
  return STATUS_MSG_COMPLETE;
}

void fn_status_notify(fn_t *fn)
{
  g_status_dev_notify(fn->status);
}

/*
 *  Startup
 */

void start_fusdnet(int verbose)
{
  /* create a log device */
  {
    logring_opts_t log_opts = {
      device: {
	devname: FUSD_NET_LOG_DEVNAME,
	device_info: &state,
	local_only: 1
      }
    };
    
    if (g_logring(&log_opts, &(state.log)) < 0) {
      fprintf(stderr, "fusdnet: Unable to create device %s\n", 
	      FUSD_NET_LOG_DEVNAME);
      exit(1);
    }
  }

  /* create a status dev */
  {
    status_dev_opts_t s_opts = {
      device: {
	devname: FUSD_NET_STATUS_DEVNAME,
	device_info: &state,
	local_only: 1
      },
      printable: fusdnet_status_print
    };
    
    if (g_status_dev(&s_opts, &state.status) < 0) {
      fprintf(stderr, "fusdnet: Unable to create device %s\n", 
	      FUSD_NET_STATUS_DEVNAME);
      exit(1);      
    }
  }

  /* intialize the server and client sides */
  fusdnet_server_init(&state);
  //fusdnet_client_init(&state);
  
  /* daemonize? */
  if (!verbose) {
    int status = fork();

    if (status < 0) {
      fprintf(stderr, "fusdd: Unable to fork!\n");
      exit(1);
    }

    if (status)
      return;

    /* child: daemonize */
    setpgrp();
    chdir("/");
    close(0);
    close(1);
    close(2);
  }

  g_main();
  exit(1);
}