usr/src/lib/libc/gen/opendir.c

/* Copyright (c) 1982 Regents of the University of California */

static char sccsid[] = "@(#)opendir.c 4.3 %G%";

#include <sys/types.h>
#include <sys/stat.h>
#include <ndir.h>

/*
 * open a directory.
 */
DIR *
opendir(name)
        char *name;
{
        register DIR *dirp;
        register int fd;
        struct stat sbuf;

        if ((fd = open(name, 0)) == -1)
                return NULL;
        fstat(fd, &sbuf);
        if (((sbuf.st_mode & S_IFDIR) == 0) ||
            ((dirp = (DIR *)malloc(sizeof(DIR))) == NULL)) {
                close (fd);
                return NULL;
        }
        dirp->dd_fd = fd;
        dirp->dd_loc = 0;
        return dirp;
}