ccid/src/debug.c

/*
    debug.c: log (or not) messages
    Copyright (C) 2003-2005   Ludovic Rousseau

    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., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/

/*
 * $Id$
 */


#include "config.h"
#include "debug.h"

#include <stdarg.h>
#include <stdio.h>
#include <string.h>

#define DEBUG_BUF_SIZE ((256+20)*3+10)

static char DebugBuffer[DEBUG_BUF_SIZE];

#define LOG_TO_STDERR

void debug_msg(char *fmt, ...)
{
        va_list argptr;

        va_start(argptr, fmt);
        vsnprintf(DebugBuffer, DEBUG_BUF_SIZE, fmt, argptr);
        va_end(argptr);

#ifdef LOG_TO_STDERR
        fprintf(stderr, "%s\n", DebugBuffer);
#endif
} /* debug_msg */

void debug_xxd(const char *msg, const unsigned char *buffer, const int len)
{
        int i;
        char *c, *debug_buf_end;

        debug_buf_end = DebugBuffer + DEBUG_BUF_SIZE - 5;

        strncpy(DebugBuffer, msg, sizeof(DebugBuffer)-1);
        c = DebugBuffer + strlen(DebugBuffer);

        for (i = 0; (i < len) && (c < debug_buf_end); ++i)
        {
                sprintf(c, "%02X ", (unsigned char)buffer[i]);
                c += strlen(c);
        }

#ifdef LOG_TO_STDERR
        if (c >= debug_buf_end)
                fprintf(stderr, "Debug buffer too short\n");

        fprintf(stderr, "%s\n", DebugBuffer);
#endif
} /* debug_xxd */

1	/*
2	debug.c: log (or not) messages
3	Copyright (C) 2003-2005 Ludovic Rousseau
4
5	This library is free software; you can redistribute it and/or
6	modify it under the terms of the GNU Lesser General Public
7	License as published by the Free Software Foundation; either
8	version 2.1 of the License, or (at your option) any later version.
9
10	This library is distributed in the hope that it will be useful,
11	but WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13	Lesser General Public License for more details.
14
15	You should have received a copy of the GNU Lesser General Public
16	License along with this library; if not, write to the Free Software
17	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18	*/
19
20	/*
21	* $Id$
22	*/
23
24
25	#include "config.h"
26	#include "debug.h"
27
28	#include <stdarg.h>
29	#include <stdio.h>
30	#include <string.h>
31
32	#define DEBUG_BUF_SIZE ((256+20)*3+10)
33
34	static char DebugBuffer[DEBUG_BUF_SIZE];
35
36	#define LOG_TO_STDERR
37
38	void debug_msg(char *fmt, ...)
39	{
40	va_list argptr;
41
42	va_start(argptr, fmt);
43	vsnprintf(DebugBuffer, DEBUG_BUF_SIZE, fmt, argptr);
44	va_end(argptr);
45
46	#ifdef LOG_TO_STDERR
47	fprintf(stderr, "%s\n", DebugBuffer);
48	#endif
49	} /* debug_msg */
50
51	void debug_xxd(const char msg, const unsigned char buffer, const int len)
52	{
53	int i;
54	char c, debug_buf_end;
55
56	debug_buf_end = DebugBuffer + DEBUG_BUF_SIZE - 5;
57
58	strncpy(DebugBuffer, msg, sizeof(DebugBuffer)-1);
59	c = DebugBuffer + strlen(DebugBuffer);
60
61	for (i = 0; (i < len) && (c < debug_buf_end); ++i)
62	{
63	sprintf(c, "%02X ", (unsigned char)buffer[i]);
64	c += strlen(c);
65	}
66
67	#ifdef LOG_TO_STDERR
68	if (c >= debug_buf_end)
69	fprintf(stderr, "Debug buffer too short\n");
70
71	fprintf(stderr, "%s\n", DebugBuffer);
72	#endif
73	} /* debug_xxd */
74
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