read_len          244 lib/utilunix.c     ssize_t read_len;
read_len          259 lib/utilunix.c         read_len = read (ps->fd, ps->buf, buf_len);
read_len          261 lib/utilunix.c     while (read_len < 0 && errno == EINTR);
read_len          263 lib/utilunix.c     if (read_len < 0)
read_len          269 lib/utilunix.c     else if (read_len == 0)
read_len          275 lib/utilunix.c         ps->len = read_len;