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assuan-logging.c
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/* assuan-logging.c - Default logging function.
* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
*
* This file is part of Assuan.
*
* Assuan 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.
*
* Assuan 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 program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#ifdef HAVE_W32_SYSTEM
#include <windows.h>
#endif /*HAVE_W32_SYSTEM*/
#include "assuan-defs.h"
static char prefix_buffer[80];
static FILE *_assuan_log;
void
_assuan_set_default_log_stream (FILE *fp)
{
if (!_assuan_log)
_assuan_log = fp;
}
void
assuan_set_assuan_log_stream (FILE *fp)
{
_assuan_log = fp;
}
FILE *
assuan_get_assuan_log_stream (void)
{
return _assuan_log ? _assuan_log : stderr;
}
/* Set the prefix to be used for logging to TEXT or
resets it to the default if TEXT is NULL. */
void
assuan_set_assuan_log_prefix (const char *text)
{
if (text)
{
strncpy (prefix_buffer, text, sizeof (prefix_buffer)-1);
prefix_buffer[sizeof (prefix_buffer)-1] = 0;
}
else
*prefix_buffer = 0;
}
const char *
assuan_get_assuan_log_prefix (void)
{
return prefix_buffer;
}
void
_assuan_log_printf (const char *format, ...)
{
va_list arg_ptr;
FILE *fp;
const char *prf;
fp = assuan_get_assuan_log_stream ();
prf = assuan_get_assuan_log_prefix ();
if (*prf)
{
fputs (prf, fp);
fputs (": ", fp);
}
va_start (arg_ptr, format);
vfprintf (fp, format, arg_ptr );
va_end (arg_ptr);
}
#ifdef HAVE_W32_SYSTEM
const char *
_assuan_w32_strerror (int ec)
{
static char strerr[256];
if (ec == -1)
ec = (int)GetLastError ();
FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, ec,
MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
strerr, sizeof (strerr)-1, NULL);
return strerr;
}
#endif /*HAVE_W32_SYSTEM*/

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