/*
 * Copyright (C) 1999 Silicon Graphics, Inc.  All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as published
 * by the Free Software Fondation.
 * 
 * This program is distributed in the hope that it would be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  Further, any license provided herein,
 * whether implied or otherwise, is limited to this program in accordance with
 * the express provisions of the GNU General Public License.  Patent licenses,
 * if any, provided herein do not apply to combinations of this program with
 * other product or programs, or any other product whatsoever.  This program is
 * distributed without any warranty that the program is delivered free of the
 * rightful claim of any third person by way of infringement or the like.  See
 * the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston MA 02111-1307, USA.
 */

#ident "$Id: proc_net_sockstat.c,v 1.0"

#include <stdio.h>
#include <errno.h>

#include "proc_net_tcp.h"

static int started = 0;

int
refresh_proc_net_tcp(proc_net_tcp_t *proc_net_tcp)
{
    char buf[1024];
    char fmt[64];
    char *s;
    FILE *fp;
    int n;

    memset(proc_net_tcp, 0, sizeof(*proc_net_tcp));

    if ((fp = fopen("/proc/net/tcp", "r")) == NULL) {
    	return -errno;
    }

    while (fgets(buf, sizeof(buf)-1, fp) != NULL) {
    	fprintf(stderr,"Buf='%s'\n",buf);
	if (!buf[0]) break;
    	buf[sizeof(buf)-1] = 0;
	// Find colon
	s = buf;
	while(*s && (*s != ':')) s++;
	if (*s) {
	    // Skip three spaces
	    n = 3;
	    while(*s && n) {
		if (*s == ' ') n--;
		s++;
	    }
	    if (*s) {
		// Get state
		n = 0;
		for(;;) {
	 	    if (isalpha(*s)) n = (n<<4) + (toupper(*s)-'A'+10);
		    else if (isdigit(*s)) n = (n<<4) + (*s-'0');
		    else break;
				s++;
	 	}
		if (n < _PM_TCP_LAST) proc_net_tcp->stat[n]++;
	    }
	}
    }

    fclose(fp);

    /* success */
    return 0;
}