source: MondoRescue/branches/2.2.5/mindi-busybox/libbb/isdirectory.c

/* vi: set sw=4 ts=4: */
/*
 * Utility routines.
 *
 * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
 * Permission has been granted to redistribute this code under the GPL.
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

#include <sys/stat.h>
#include "libbb.h"

/*
 * Return TRUE if a fileName is a directory.
 * Nonexistent files return FALSE.
 */
int is_directory(const char *fileName, const int followLinks, struct stat *statBuf)
{
    int status;
    struct stat astatBuf;

    if (statBuf == NULL) {
        /* set from auto stack buffer */
        statBuf = &astatBuf;
    }

    if (followLinks)
        status = stat(fileName, statBuf);
    else
        status = lstat(fileName, statBuf);

    if (status < 0 || !(S_ISDIR(statBuf->st_mode))) {
        status = FALSE;
    }
    else status = TRUE;

    return status;
}