vfs_regular.c

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/*
 * Copyright (c) 2006-2009 Ed Schouten <ed@80386.nl>
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 "stdinc.h"

#include "config.h"
#include "vfs.h"
#include "vfs_modules.h"

int
vfs_file_match(struct vfsent *ve, int isdir)
{
        return (isdir);
}

FILE *
vfs_file_open(struct vfsent *ve)
{
        return fopen(ve->filename, "rb");
}

int
vfs_dir_match(struct vfsent *ve, int isdir)
{
#ifdef S_ISLNK
        struct stat fs;
#endif /* S_ISLNK */

        if (!isdir)
                return (-1);
        
#ifdef S_ISLNK
        /* Disallow recursing on symlinked directories */
        if (lstat(ve->filename, &fs) != 0)
                return (-1);
        if (S_ISLNK(fs.st_mode))
                ve->recurse = 0;
#endif /* S_ISLNK */

        return (0);
}

int
vfs_dir_populate(struct vfsent *ve)
{
        GDir *dir;
        const char *sfn;
        struct vfsref *nvr, *svr;
        int hide_dotfiles;

        hide_dotfiles = config_getopt_bool("vfs.dir.hide_dotfiles");

        if ((dir = g_dir_open(ve->filename, 0, NULL)) == NULL)
                return (-1);
        
        while ((sfn = g_dir_read_name(dir)) != NULL) {
                /* Hide dotted files */
                if (hide_dotfiles && sfn[0] == '.')
                        continue;

                if ((nvr = vfs_lookup(sfn, NULL, ve->filename, 1)) == NULL)
                        continue;

                /*
                 * Add the items to the tailq in a sorted manner.
                 */
                VFS_LIST_FOREACH(&ve->population, svr) {
                        /* Store the file if the sorting priority is lower */
                        if (nvr->ent->vmod->sortorder < svr->ent->vmod->sortorder ||
                            /* Or if they are the same and the filename is lower */
                            (nvr->ent->vmod->sortorder == svr->ent->vmod->sortorder &&
                            strcasecmp(vfs_name(nvr), vfs_name(svr)) < 0)) {
                                vfs_list_insert_before(&ve->population, nvr, svr);
                                break;
                        }
                }

                if (svr == NULL)
                        vfs_list_insert_tail(&ve->population, nvr);
        }

        g_dir_close(dir);

        return (0);
}

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