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More descriptive error on buffer overflow.

This commit is contained in:
Andreas Mohr 2001-07-17 00:56:37 +00:00 committed by Alexandre Julliard
parent e79f0768e1
commit 26af822102
1 changed files with 10 additions and 3 deletions
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13
dlls/ntdll/debugtools.c
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@ -209,9 +209,16 @@ int wine_dbg_vprintf( const char *format, va_list args )
format, args );
/* make sure we didn't exceed the buffer length
* the two asserts are due to glibc changes in vsnprintfs return value */
assert( ret != -1 );
assert( ret < sizeof(info->output) - (info->out_pos - info->output) );
* the two checks are due to glibc changes in vsnprintfs return value
* the buffer size can be exceeded in case of a missing \n in
* debug output */
if ((ret == -1) || (ret >= sizeof(info->output) - (info->out_pos - info->output)))
{
fprintf( stderr, "wine_dbg_vprintf: debugstr buffer overflow (contents: '%s')\n",
info->output);
info->out_pos = info->output;
abort();
}
p = strrchr( info->out_pos, '\n' );
if (!p) info->out_pos += ret;