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Diffstat (limited to 'common/debug.c')
| -rw-r--r-- | common/debug.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/common/debug.c b/common/debug.c new file mode 100644 index 0000000..0bb87a2 --- /dev/null +++ b/common/debug.c @@ -0,0 +1,169 @@ +/* + * debug.c + * contains utilitary functions for debugging + * + * Copyright (c) 2008 Jonathan Beck All Rights Reserved. + * Copyright (c) 2010 Martin S. All Rights Reserved. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdarg.h> +#define _GNU_SOURCE 1 +#define __USE_GNU 1 +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <time.h> + +#include "debug.h" +#include "libimobiledevice/libimobiledevice.h" + +#ifndef STRIP_DEBUG_CODE +#include "asprintf.h" +#endif + +int debug_level = 0; + +/** + * Sets the level of debugging. Currently the only acceptable values are 0 and + * 1. + * + * @param level Set to 0 for no debugging or 1 for debugging. + */ +void idevice_set_debug_level(int level) +{ + debug_level = level; +} + +#ifndef STRIP_DEBUG_CODE +static void debug_print_line(const char *func, const char *file, int line, const char *buffer) +{ + char *str_time = NULL; + char *header = NULL; + time_t the_time; + + time(&the_time); + str_time = (char*)malloc(255); + strftime(str_time, 254, "%H:%M:%S", localtime (&the_time)); + + /* generate header text */ + (void)asprintf(&header, "%s %s:%d %s()", str_time, file, line, func); + free (str_time); + + /* trim ending newlines */ + + /* print header */ + printf ("%s: ", header); + + /* print actual debug content */ + printf ("%s\n", buffer); + + /* flush this output, as we need to debug */ + fflush (stdout); + + free (header); +} +#endif + +inline void debug_info_real(const char *func, const char *file, int line, const char *format, ...) +{ +#ifndef STRIP_DEBUG_CODE + va_list args; + char *buffer = NULL; + + if (!debug_level) + return; + + /* run the real fprintf */ + va_start(args, format); + (void)vasprintf(&buffer, format, args); + va_end(args); + + debug_print_line(func, file, line, buffer); + + free(buffer); +#endif +} + +inline void debug_buffer(const char *data, const int length) +{ +#ifndef STRIP_DEBUG_CODE + int i; + int j; + unsigned char c; + + if (debug_level) { + for (i = 0; i < length; i += 16) { + fprintf(stderr, "%04x: ", i); + for (j = 0; j < 16; j++) { + if (i + j >= length) { + fprintf(stderr, " "); + continue; + } + fprintf(stderr, "%02hhx ", *(data + i + j)); + } + fprintf(stderr, " | "); + for (j = 0; j < 16; j++) { + if (i + j >= length) + break; + c = *(data + i + j); + if ((c < 32) || (c > 127)) { + fprintf(stderr, "."); + continue; + } + fprintf(stderr, "%c", c); + } + fprintf(stderr, "\n"); + } + fprintf(stderr, "\n"); + } +#endif +} + +inline void debug_buffer_to_file(const char *file, const char *data, const int length) +{ +#ifndef STRIP_DEBUG_CODE + if (debug_level) { + FILE *f = fopen(file, "wb"); + fwrite(data, 1, length, f); + fflush(f); + fclose(f); + } +#endif +} + +inline void debug_plist_real(const char *func, const char *file, int line, plist_t plist) +{ +#ifndef STRIP_DEBUG_CODE + if (!plist) + return; + + char *buffer = NULL; + uint32_t length = 0; + plist_to_xml(plist, &buffer, &length); + + /* get rid of ending newline as one is already added in the debug line */ + if (buffer[length-1] == '\n') + buffer[length-1] = '\0'; + + debug_info_real(func, file, line, "printing %i bytes plist:\n%s", length, buffer); + free(buffer); +#endif +} + |