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Protect error counter against overflow.

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* util/logger.c (log_inc_errorcount): Protect against overflow.
(g10_log_warning):  Bumb error counter using the above function.
(g10_log_error):  Ditto.
--

This is a similar patch we use in 2.2 and libgpg-error.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-03-03 12:23:59 +01:00
parent f32dbf396a
commit c8ad567e7c
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GPG Key ID: E3FDFF218E45B72B
1 changed files with 5 additions and 6 deletions
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9
util/logger.c
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@ -109,6 +109,8 @@ log_get_errorcount( int clear)
void
log_inc_errorcount()
{
/* Protect agains overflow. */
if (errorcount < 30000)
errorcount++;
}
@ -179,7 +181,7 @@ g10_log_warning( const char *fmt, ... )
if(strict)
{
errorcount++;
log_inc_errorcount ();
g10_log_print_prefix(_("ERROR: "));
}
else
@ -203,7 +205,7 @@ g10_log_error( const char *fmt, ... )
va_start( arg_ptr, fmt ) ;
vfprintf(logfp,fmt,arg_ptr) ;
va_end(arg_ptr);
errorcount++;
log_inc_errorcount ();
#ifdef __riscos__
fflush( logfp );
#endif /* __riscos__ */
@ -285,6 +287,3 @@ g10_log_hexdump( const char *text, const char *buf, size_t len )
fflush( logfp );
#endif /* __riscos__ */
}