On Tue, May 02, 2017 at 10:32:40AM -0400, Doug Gale wrote: > + } else { > + /* decode repeat length */ > + int repeat = (unsigned char)ch - ' ' + 3; > + if (s->line_buf_index + repeat >= sizeof(s->line_buf) - 1) { > + /* that many repeats would overrun the command buffer */ > +#ifdef DEBUG_GDB > + printf("gdbstub command buffer overrun," > + " dropping command\n"); > +#endif > + s->state = RS_IDLE; > + } else if (s->line_buf_index <= 2) {
Why s->line_buf_index <= 2? I expected s->line_buf_index < 1 since we just need 1 character to clone for run-length decoding. > + /* got a repeat but we have nothing to repeat */ > +#ifdef DEBUG_GDB > + printf("gdbstub got invalid RLE sequence\n"); > +#endif > + } else { Missing s->state = RS_IDLE?
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