Author: kevans
Date: Thu Oct 24 04:12:38 2019
New Revision: 354012
URL: https://svnweb.freebsd.org/changeset/base/354012
Log:
MFC r352420: loader_4th: scan_buffer can leave empty string on stack
When the file processing is done, we will have string with lenght 0 in stack
and we will attempt to
allocate 0 bytes.
Modified:
stable/12/stand/forth/support.4th
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/stand/forth/support.4th
==============================================================================
--- stable/12/stand/forth/support.4th Thu Oct 24 04:08:24 2019
(r354011)
+++ stable/12/stand/forth/support.4th Thu Oct 24 04:12:38 2019
(r354012)
@@ -363,6 +363,7 @@ variable fd
;
: line_buffer_resize ( len -- len )
+ dup 0= if exit then
>r
line_buffer .len @ if
line_buffer .addr @
@@ -376,6 +377,7 @@ variable fd
;
: append_to_line_buffer ( addr len -- )
+ dup 0= if 2drop exit then
line_buffer strget
2swap strcat
line_buffer .len !
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