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* ./src/misc/messages.c: fixed an extremely old buffer overflow.

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This commit is contained in:
Sam Hocevar 2002-08-10 19:23:06 +00:00
parent 5fa75a1f33
commit eb8abe0a86
2 changed files with 14 additions and 6 deletions
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8
include/vlc_common.h
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@ -3,7 +3,7 @@
* Collection of useful common types and macros definitions
*****************************************************************************
* Copyright (C) 1998, 1999, 2000 VideoLAN
* $Id: vlc_common.h,v 1.16 2002/08/08 00:35:10 sam Exp $
* $Id: vlc_common.h,v 1.17 2002/08/10 19:23:06 sam Exp $
*
* Authors: Samuel Hocevar <sam@via.ecp.fr>
* Vincent Seguin <seguin@via.ecp.fr>
@ -420,8 +420,12 @@ typedef __int64 off_t;
# define O_NONBLOCK 0
# endif
/* These two are not defined in mingw32 (bug?) */
# ifndef snprintf
# define snprintf _snprintf /* snprintf not defined in mingw32 (bug?) */
# define snprintf _snprintf
# endif
# ifndef vsnprintf
# define vsnprintf _vsnprintf
# endif
#endif

12
src/misc/messages.c
View File

@ -4,7 +4,7 @@
* modules, especially intf modules. See config.h for output configuration.
*****************************************************************************
* Copyright (C) 1998-2002 VideoLAN
* $Id: messages.c,v 1.7 2002/08/08 00:35:11 sam Exp $
* $Id: messages.c,v 1.8 2002/08/10 19:23:06 sam Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
@ -257,6 +257,9 @@ static void QueueMsg( vlc_object_t *p_this, int i_type, const char *psz_module,
#ifdef WIN32
char * psz_temp;
#endif
#ifndef HAVE_VASPRINTF
int i_size = strlen(psz_format) + INTF_MAX_MSG_SIZE;
#endif
/*
* Convert message to string
@ -264,7 +267,7 @@ static void QueueMsg( vlc_object_t *p_this, int i_type, const char *psz_module,
#ifdef HAVE_VASPRINTF
vasprintf( &psz_str, psz_format, args );
#else
psz_str = (char*) malloc( strlen(psz_format) + INTF_MAX_MSG_SIZE );
psz_str = (char*) malloc( i_size * sizeof(char) );
#endif
if( psz_str == NULL )
@ -284,11 +287,12 @@ static void QueueMsg( vlc_object_t *p_this, int i_type, const char *psz_module,
fprintf( stderr, "main warning: couldn't print message\n" );
return;
}
vsprintf( psz_str, psz_temp, args );
vsnprintf( psz_str, i_size, psz_temp, args );
free( psz_temp );
# else
vsprintf( psz_str, psz_format, args );
vsnprintf( psz_str, i_size, psz_format, args );
# endif
psz_str[ i_size - 1 ] = 0; /* Just in case */
#endif
/* Put message in queue */