From 4748e1ac72ede8ba1f7a28ec8c1b8d5bb0f0afd3 Mon Sep 17 00:00:00 2001
From: Martin Szulecki
Date: Thu, 25 Apr 2013 17:43:54 +0100
Subject: common: Move debug and userpref code into libinternalcommon

---
 common/debug.c | 169 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 169 insertions(+)
 create mode 100644 common/debug.c

(limited to 'common/debug.c')

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
+}
+
-- 
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