[Pcsclite-cvs-commit] r1962 - trunk/PCSC/src

[Ludovic Rousseau]

Author: rousseau
Date: 2006-03-21 15:59:28 +0000 (Tue, 21 Mar 2006)
New Revision: 1962

Added:
   trunk/PCSC/src/debug.c
Log:
provice log_msg() and log_xxd() implementation for the client side


Added: trunk/PCSC/src/debug.c
===================================================================
--- trunk/PCSC/src/debug.c	2006-03-21 15:58:41 UTC (rev 1961)
+++ trunk/PCSC/src/debug.c	2006-03-21 15:59:28 UTC (rev 1962)
@@ -0,0 +1,162 @@
+/*
+ * MUSCLE SmartCard Development ( http://www.linuxnet.com )
+ *
+ * Copyright (C) 1999-2002
+ *  David Corcoran <corcoran at linuxnet.com>
+ * Copyright (C) 1999-2005
+ *  Ludovic Rousseau <ludovic.rousseau at free.fr>
+ *
+ * $Id: debuglog.c 1953 2006-03-21 13:46:28Z rousseau $
+ */
+
+/**
+ * @file
+ * @brief This handles debugging.
+ */
+ 
+#include "config.h"
+#include <stdarg.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "debug.h"
+#include "strlcpycat.h"
+
+#define DEBUG_BUF_SIZE 2048
+
+/* default level is a bit verbose to be backward compatible */
+static char LogLevel = PCSC_LOG_ERROR;
+
+static signed char LogDoColor = 0;	/* no color by default */
+
+void log_init(void)
+{
+	char *e;
+
+#ifdef LIBPCSCLITE
+	e = getenv("PCSCLITE_DEBUG");
+#else
+	e = getenv("MUSCLECARD_DEBUG");
+#endif
+	if (e)
+	{
+		LogLevel = atoi(e);
+		printf("pouet %d\n", LogLevel);
+	}
+
+	/* no color under Windows */
+#ifndef WIN32
+	/* log to stderr and stderr is a tty? */
+	if (isatty(fileno(stderr)))
+	{
+		const char *terms[] = { "linux", "xterm", "xterm-color", "Eterm", "rxvt", "rxvt-unicode" };
+		char *term;
+
+		term = getenv("TERM");
+		if (term)
+		{
+			int i;
+
+			/* for each known color terminal */
+			for (i = 0; i < sizeof(terms) / sizeof(terms[0]); i++)
+			{
+				/* we found a supported term? */
+				if (0 == strcmp(terms[i], term))
+				{
+					LogDoColor = 1;
+					break;
+				}
+			}
+		}
+	}
+#endif
+} /* log_init */
+
+void log_msg(const int priority, const char *fmt, ...)
+{
+	char DebugBuffer[DEBUG_BUF_SIZE];
+	va_list argptr;
+	static int is_initialized = 0;
+
+	if (!is_initialized)
+	{
+		log_init();
+		is_initialized = 1;
+	}
+
+	if (priority < LogLevel) /* log priority lower than threshold? */
+		return;
+
+	va_start(argptr, fmt);
+#ifndef WIN32
+	vsnprintf(DebugBuffer, DEBUG_BUF_SIZE, fmt, argptr);
+#else
+#if HAVE_VSNPRINTF
+	vsnprintf(DebugBuffer, DEBUG_BUF_SIZE, fmt, argptr);
+#else
+	vsprintf(DebugBuffer, fmt, argptr);
+#endif
+#endif
+	va_end(argptr);
+
+#ifndef WIN32
+	{
+		if (LogDoColor)
+		{
+			const char *color_pfx = "", *color_sfx = "\33[0m";
+
+			switch (priority)
+			{
+				case PCSC_LOG_CRITICAL:
+					color_pfx = "\33[01;31m"; /* bright + Red */
+					break;
+
+				case PCSC_LOG_ERROR:
+					color_pfx = "\33[35m"; /* Magenta */
+					break;
+
+				case PCSC_LOG_INFO:
+					color_pfx = "\33[34m"; /* Blue */
+					break;
+
+				case PCSC_LOG_DEBUG:
+					color_pfx = ""; /* normal (black) */
+					color_sfx = "";
+					break;
+			}
+			fprintf(stderr, "%s%s%s\n", color_pfx, DebugBuffer, color_sfx);
+		}
+		else
+			fprintf(stderr, "%s\n", DebugBuffer);
+	}
+#else
+	fprintf(stderr, "%s\n", DebugBuffer);
+#endif
+} /* log_msg */
+
+void log_xxd(const int priority, const char *msg, const unsigned char *buffer,
+	const int len)
+{
+	char DebugBuffer[DEBUG_BUF_SIZE];
+	int i;
+	char *c;
+	char *debug_buf_end;
+
+	if (priority < LogLevel) /* log priority lower than threshold? */
+		return;
+
+	debug_buf_end = DebugBuffer + DEBUG_BUF_SIZE - 5;
+
+	strlcpy(DebugBuffer, msg, sizeof(DebugBuffer));
+	c = DebugBuffer + strlen(DebugBuffer);
+
+	for (i = 0; (i < len) && (c < debug_buf_end); ++i)
+	{
+		sprintf(c, "%02X ", buffer[i]);
+		c += strlen(c);
+	}
+
+	fprintf(stderr, "%s\n", DebugBuffer);
+} /* log_xxd */
+