Method: File.blockdev?

Defined in:
file.c

.blockdev?(file_name) ⇒ Boolean

Returns true if the named file is a block device.

file_name can be an IO object.

Returns:

  • (Boolean) 


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# File 'file.c', line 1697

static VALUE
rb_file_blockdev_p(VALUE obj, VALUE fname)
{
#ifndef S_ISBLK
#   ifdef S_IFBLK
#	define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
#   else
#	define S_ISBLK(m) (0)  /* anytime false */
#   endif
#endif

#ifdef S_ISBLK
    struct stat st;

    if (rb_stat(fname, &st) < 0) return Qfalse;
    if (S_ISBLK(st.st_mode)) return Qtrue;

#endif
    return Qfalse;
}