init repo

MITM/aes-debug.c

@@ -0,0 +1,166 @@
+#define AES_DEBUG
+
+#include "aes.h"
+
+int aes_debug_level = MSG_EXCESSIVE;
+int aes_debug_show_keys = 1;
+int aes_debug_timestamp = 1;
+
+#if defined(_MSC_VER) || ( defined(__WIN32__) && !defined(__CYGWIN__))
+
+#include <time.h>
+#include <windows.h>
+
+const __int64 DELTA_EPOCH_IN_MICROSECS= 11644473600000000;
+
+int gettimeofday(struct timeval *tv, struct timezone *tz)
+{
+    FILETIME ft;
+    __int64 tmpres = 0;
+    TIME_ZONE_INFORMATION tz_winapi;
+    int ret = 0;
+
+    ZeroMemory(&ft,sizeof(ft));
+    ZeroMemory(&tz_winapi,sizeof(tz_winapi));
+
+    GetSystemTimeAsFileTime(&ft);
+
+    tmpres = ft.dwHighDateTime;
+    tmpres <<= 32;
+    tmpres |= ft.dwLowDateTime;
+
+    /*converting file time to unix epoch*/
+    tmpres /= 10;  /*convert into microseconds*/
+    tmpres -= DELTA_EPOCH_IN_MICROSECS;
+    tv->tv_sec = (__int32)(tmpres*0.000001);
+    tv->tv_usec =(tmpres%1000000);
+
+    if (tz) {
+        ret = GetTimeZoneInformation(&tz_winapi);
+        tz->tz_dsttime = (ret == 2) ? true : false;
+        tz->tz_minuteswest = tz_winapi.Bias + ((rez==2)?tz_winapi.DaylightBias:0);
+    }
+
+    return 0;
+}
+
+#endif
+
+
+void aes_debug_print_timestamp(void)
+{
+	struct timeval tv;
+
+	if (!aes_debug_timestamp)
+		return;
+
+	gettimeofday(&tv, NULL);
+	printf("%ld.%06u: ", (long) tv.tv_sec, (unsigned int) tv.tv_usec);
+}
+
+
+void aes_printf(int level, const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	if (level >= aes_debug_level) {
+		aes_debug_print_timestamp();
+		vprintf(fmt, ap);
+		printf("\n");
+	}
+	va_end(ap);
+}
+
+
+static void _aes_hexdump(int level, const char *title, const aes_uchar *buf,
+			 size_t len, int show)
+{
+	size_t i;
+
+	if (level < aes_debug_level)
+		return;
+
+    aes_debug_print_timestamp();
+	printf("%s - hexdump(len=%lu):", title, (unsigned long) len);
+	if (buf == NULL) {
+		printf(" [NULL]");
+	} else if (show) {
+		for (i = 0; i < len; i++)
+			printf(" %02x", buf[i]);
+	} else {
+		printf(" [REDACTED]");
+	}
+	printf("\n");
+}
+
+
+void aes_hexdump(int level, const char *title, const void *buf, size_t len)
+{
+	_aes_hexdump(level, title, buf, len, 1);
+}
+
+
+void aes_hexdump_key(int level, const char *title, const void *buf, size_t len)
+{
+	_aes_hexdump(level, title, buf, len, aes_debug_show_keys);
+}
+
+
+static void _aes_hexdump_ascii(int level, const char *title, const void *buf,
+			       size_t len, int show)
+{
+	size_t i, llen;
+	const aes_uchar *pos = buf;
+	const size_t line_len = 16;
+
+	if (level < aes_debug_level)
+		return;
+
+	aes_debug_print_timestamp();
+	if (!show) {
+		printf("%s - hexdump_ascii(len=%lu): [REDACTED]\n",
+		       title, (unsigned long) len);
+		return;
+	}
+	if (buf == NULL) {
+		printf("%s - hexdump_ascii(len=%lu): [NULL]\n",
+		       title, (unsigned long) len);
+		return;
+	}
+	printf("%s - hexdump_ascii(len=%lu):\n", title, (unsigned long) len);
+	while (len) {
+		llen = len > line_len ? line_len : len;
+		printf("    ");
+		for (i = 0; i < llen; i++)
+			printf(" %02x", pos[i]);
+		for (i = llen; i < line_len; i++)
+			printf("   ");
+		printf("   ");
+		for (i = 0; i < llen; i++) {
+			if (isprint(pos[i]))
+				printf("%c", pos[i]);
+			else
+				printf("_");
+		}
+		for (i = llen; i < line_len; i++)
+			printf(" ");
+		printf("\n");
+		pos += llen;
+		len -= llen;
+	}
+}
+
+
+void aes_hexdump_ascii(int level, const char *title, const void *buf,
+		       size_t len)
+{
+	_aes_hexdump_ascii(level, title, buf, len, 1);
+}
+
+
+void aes_hexdump_ascii_key(int level, const char *title, const void *buf,
+			   size_t len)
+{
+	_aes_hexdump_ascii(level, title, buf, len, aes_debug_show_keys);
+}