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misc.c
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/* misc.c
* Copyright (C) 1999, 2001, 2002, 2003, 2007 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt 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.
*
* Libgcrypt 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, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <unistd.h>
#include "g10lib.h"
#include "secmem.h"
static int verbosity_level = 0;
static void (*fatal_error_handler)(void*,int, const char*) = NULL;
static void *fatal_error_handler_value = 0;
static void (*log_handler)(void*,int, const char*, va_list) = NULL;
static void *log_handler_value = 0;
static const char *(*user_gettext_handler)( const char * ) = NULL;
void
gcry_set_gettext_handler( const char *(*f)(const char*) )
{
user_gettext_handler = f;
}
const char *
_gcry_gettext( const char *key )
{
if( user_gettext_handler )
return user_gettext_handler( key );
/* FIXME: switch the domain to gnupg and restore later */
return key;
}
void
gcry_set_fatalerror_handler( void (*fnc)(void*,int, const char*), void *value)
{
fatal_error_handler_value = value;
fatal_error_handler = fnc;
}
static void
write2stderr( const char *s )
{
write( 2, s, strlen(s) );
}
/*
* This function is called for fatal errors. A caller might want to
* set his own handler because this function simply calls abort().
*/
void
_gcry_fatal_error (int rc, const char *text)
{
if ( !text ) /* get a default text */
text = gpg_strerror (rc);
if (fatal_error_handler && !fips_mode () )
fatal_error_handler (fatal_error_handler_value, rc, text);
fips_signal_fatal_error (text);
write2stderr("\nFatal error: ");
write2stderr(text);
write2stderr("\n");
_gcry_secmem_term ();
abort ();
}
void
gcry_set_log_handler( void (*f)(void*,int, const char*, va_list ),
void *opaque )
{
log_handler = f;
log_handler_value = opaque;
}
void
_gcry_set_log_verbosity( int level )
{
verbosity_level = level;
}
int
_gcry_log_verbosity( int level )
{
return verbosity_level >= level;
}
/****************
* This is our log function which prints all log messages to stderr or
* using the function defined with gcry_set_log_handler().
*/
static void
_gcry_logv( int level, const char *fmt, va_list arg_ptr )
{
if (log_handler)
log_handler (log_handler_value, level, fmt, arg_ptr);
else
{
switch (level)
{
case GCRY_LOG_CONT: break;
case GCRY_LOG_INFO: break;
case GCRY_LOG_WARN: break;
case GCRY_LOG_ERROR: break;
case GCRY_LOG_FATAL: fputs("Fatal: ",stderr ); break;
case GCRY_LOG_BUG: fputs("Ohhhh jeeee: ", stderr); break;
case GCRY_LOG_DEBUG: fputs("DBG: ", stderr ); break;
default: fprintf(stderr,"[Unknown log level %d]: ", level ); break;
}
vfprintf(stderr,fmt,arg_ptr) ;
}
if ( level == GCRY_LOG_FATAL || level == GCRY_LOG_BUG )
{
fips_signal_fatal_error ("internal error (fatal or bug)");
_gcry_secmem_term ();
abort ();
}
}
void
_gcry_log( int level, const char *fmt, ... )
{
va_list arg_ptr ;
va_start( arg_ptr, fmt ) ;
_gcry_logv( level, fmt, arg_ptr );
va_end(arg_ptr);
}
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )
void
_gcry_bug( const char *file, int line, const char *func )
{
_gcry_log( GCRY_LOG_BUG,
("... this is a bug (%s:%d:%s)\n"), file, line, func );
abort(); /* never called, but it makes the compiler happy */
}
#else
void
_gcry_bug( const char *file, int line )
{
_gcry_log( GCRY_LOG_BUG,
_("you found a bug ... (%s:%d)\n"), file, line);
abort(); /* never called, but it makes the compiler happy */
}
#endif
void
_gcry_log_info( const char *fmt, ... )
{
va_list arg_ptr ;
va_start( arg_ptr, fmt ) ;
_gcry_logv( GCRY_LOG_INFO, fmt, arg_ptr );
va_end(arg_ptr);
}
int
_gcry_log_info_with_dummy_fp (FILE *fp, const char *fmt, ... )
{
va_list arg_ptr;
(void)fp;
va_start( arg_ptr, fmt ) ;
_gcry_logv( GCRY_LOG_INFO, fmt, arg_ptr );
va_end(arg_ptr);
return 0;
}
void
_gcry_log_error( const char *fmt, ... )
{
va_list arg_ptr ;
va_start( arg_ptr, fmt ) ;
_gcry_logv( GCRY_LOG_ERROR, fmt, arg_ptr );
va_end(arg_ptr);
}
void
_gcry_log_fatal( const char *fmt, ... )
{
va_list arg_ptr ;
va_start( arg_ptr, fmt ) ;
_gcry_logv( GCRY_LOG_FATAL, fmt, arg_ptr );
va_end(arg_ptr);
abort(); /* never called, but it makes the compiler happy */
}
void
_gcry_log_bug( const char *fmt, ... )
{
va_list arg_ptr ;
va_start( arg_ptr, fmt ) ;
_gcry_logv( GCRY_LOG_BUG, fmt, arg_ptr );
va_end(arg_ptr);
abort(); /* never called, but it makes the compiler happy */
}
void
_gcry_log_debug( const char *fmt, ... )
{
va_list arg_ptr ;
va_start( arg_ptr, fmt ) ;
_gcry_logv( GCRY_LOG_DEBUG, fmt, arg_ptr );
va_end(arg_ptr);
}
void
_gcry_log_printf (const char *fmt, ...)
{
va_list arg_ptr;
if (fmt)
{
va_start( arg_ptr, fmt ) ;
_gcry_logv (GCRY_LOG_CONT, fmt, arg_ptr);
va_end(arg_ptr);
}
}
void
_gcry_burn_stack (int bytes)
{
char buf[64];
wipememory (buf, sizeof buf);
bytes -= sizeof buf;
if (bytes > 0)
_gcry_burn_stack (bytes);
}

File Metadata

Mime Type
text/x-c
Expires
Fri, Mar 14, 4:38 AM (1 d, 16 h)
Storage Engine
local-disk
Storage Format
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Storage Handle
9f/d7/92fb9d6f7a3d544eb6dcbfeaef28

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