socket?(p1)
public
Returns true if the named file is a socket.
file_name can be an IO object.
static VALUE
rb_file_socket_p(VALUE obj, VALUE fname)
{
#ifndef S_ISSOCK
# ifdef _S_ISSOCK
# define S_ISSOCK(m) _S_ISSOCK(m)
# else
# ifdef _S_IFSOCK
# define S_ISSOCK(m) (((m) & S_IFMT) == _S_IFSOCK)
# else
# ifdef S_IFSOCK
# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
# endif
# endif
# endif
#endif
#ifdef S_ISSOCK
struct stat st;
if (rb_stat(fname, &st) < 0) return Qfalse;
if (S_ISSOCK(st.st_mode)) return Qtrue;
#endif
return Qfalse;
}