method

setuid?

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setuid?(p1) public

Returns true if the named file has the setuid bit set.

/*
 * call-seq:
 *   File.setuid?(file_name)   =>  true or false
 *
 * Returns <code>true</code> if the named file has the setuid bit set.
 */

static VALUE
test_suid(obj, fname)
    VALUE obj, fname;
{
#ifdef S_ISUID
    return check3rdbyte(fname, S_ISUID);
#else
    return Qfalse;
#endif
}

setuid?

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