dump_filetab.c

一款类linux的操作系统源码

/*
 *  Roadrunner/pk
 *    Copyright (C) 1989-2001  Cornfed Systems, Inc.
 *
 *  The Roadrunner/pk operating system is free software; you can
 *  redistribute and/or modify it under the terms of the GNU General
 *  Public License, version 2, as published by the Free Software
 *  Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 to the Free
 *  Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA 02111-1307 USA
 *
 *  More information about the Roadrunner/pk operating system of
 *  which this file is a part is available on the World-Wide Web
 *  at: http://www.cornfed.com.
 *
 */

#include <fs.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fs/dump.h>

#define FILE_HDR "fileno  fsno  filesize       pos  bufsize  refcnt  path"

void
dump_filetab(char *s)
{
    file_t file;
    int filecnt = 0;
    int fileno;
    char fullpath[132];
    char s0[80];

    for (fileno = 0; fileno < FILES; fileno++)
	if (filetab[fileno].fs != NULL) {
	    if (filecnt++ == 0) {
		sprintf(s, "%s\n", FILE_HDR);
		s += strlen(s);
	    }
	    file = &(filetab[fileno]);

	    if (file->type == FT_SOCKET)
		strcpy(fullpath, "socket");
	    else
		mkpath(file->fs->path, file->path, fullpath);

	    sprintf(s, "  %4d  ", fileno);
	    s += 8;

	    if (file->type == FT_SOCKET)
		sprintf(s, "   -  ");
	    else
		sprintf(s, "%4d  ", file->fs->slot);
	    s += 6;

	    if (file->filesize == MAX_FILE_SIZE || file->type == FT_SOCKET)
		sprintf(s, "       -");
	    else
		sprintf(s, "%8u", (u_int) file->filesize);
	    s += 8;

	    if (file->type == FT_SOCKET)
		sprintf(s, "         -        -  ");
	    else
		sprintf(s, "  %8u    %5u  ",
			(u_int) file->pos, file->bufsize);
	    s += 21;

	    sprintf(s0, "%6d  %s\n", file->refcnt, fullpath);
	    strcat(s, s0);
	    s += strlen(s0);
	}
}