diff options
Diffstat (limited to 'lib/debug.c')
-rw-r--r-- | lib/debug.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/lib/debug.c b/lib/debug.c new file mode 100644 index 0000000..1c789de --- /dev/null +++ b/lib/debug.c @@ -0,0 +1,55 @@ +/* + * Debugging facilities. + * + * Copyright (C) 2014 Peter Wu <peter@lekensteyn.nl> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stddef.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdarg.h> +#include "debug.h" + +#ifdef ENABLE_TRACING +static bool debug_enabled; + +void trace_log(const char *fmt, ...) +{ + va_list ap; + if (debug_enabled) { + vprintf(fmt, ap); + } + va_end(ap); +} + +void trace_dump_data(const char *tag, const uint8_t *data, size_t len) +{ + if (!debug_enabled) { + return; + } + + /* do not mess with stderr colors */ + fflush(NULL); + printf("\033[34m"); + printf("%s: ", tag); + while (len-- > 0) { + printf("%02x%c", *(data++), + len == 0 ? '\n' : ' '); + } + printf("\033[m"); + fflush(NULL); +} +#endif |