busybox

/* vi: set sw=4 ts=4: */

/*

 * devname.c - get a dev by its device inode name

 *

 * Copyright (C) Andries Brouwer

 * Copyright (C) 1999, 2000, 2001, 2002, 2003 Theodore Ts'o

 * Copyright (C) 2001 Andreas Dilger

 *

 * %Begin-Header%

 * This file may be redistributed under the terms of the

 * GNU Lesser General Public License.

 * %End-Header%

 */

​

#include <stdio.h>

#include <string.h>

#ifdef HAVE_UNISTD_H

#include <unistd.h>

#endif

#include <stdlib.h>

#include <string.h>

#include <ctype.h>

#ifdef HAVE_SYS_TYPES_H

#include <sys/types.h>

#endif

#include <sys/stat.h>

#ifdef HAVE_ERRNO_H

#include <errno.h>

#endif

#ifdef HAVE_SYS_MKDEV_H

#include <sys/mkdev.h>

#endif

#include <time.h>

​

#include "blkidP.h"

​

/*

 * Find a dev struct in the cache by device name, if available.

 *

 * If there is no entry with the specified device name, and the create

 * flag is set, then create an empty device entry.

 */

blkid_dev blkid_get_dev(blkid_cache cache, const char *devname, int flags)

{

    blkid_dev dev = NULL, tmp;

    struct list_head *p;

​

    if (!cache || !devname)

        return NULL;

​

    list_for_each(p, &cache->bic_devs) {

        tmp = list_entry(p, struct blkid_struct_dev, bid_devs);

        if (strcmp(tmp->bid_name, devname))

            continue;

​

        DBG(DEBUG_DEVNAME,

            printf("found devname %s in cache\n", tmp->bid_name));

        dev = tmp;

        break;

    }

​

    if (!dev && (flags & BLKID_DEV_CREATE)) {

        dev = blkid_new_dev();