vim/SOURCES/0001-patch-8.2.4359-crash-when-repeatedly-using-retab.patch
2022-05-17 18:36:38 +00:00

62 lines
1.7 KiB
Diff

diff --git a/src/errors.h b/src/errors.h
index 3008020..3daf1a6 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -381,3 +381,5 @@ EXTERN char e_missing_end_block[]
INIT(= N_("E1171: Missing } after inline function"));
EXTERN char e_cannot_use_default_values_in_lambda[]
INIT(= N_("E1172: Cannot use default values in a lambda"));
+EXTERN char e_resulting_text_too_long[]
+ INIT(= N_("E1240: Resulting text too long"));
diff --git a/src/indent.c b/src/indent.c
index 4f909d0..77d8b0a 100644
--- a/src/indent.c
+++ b/src/indent.c
@@ -1696,6 +1696,11 @@ ex_retab(exarg_T *eap)
if (ptr[col] == NUL)
break;
vcol += chartabsize(ptr + col, (colnr_T)vcol);
+ if (vcol >= MAXCOL)
+ {
+ emsg(_(e_resulting_text_too_long));
+ break;
+ }
if (has_mbyte)
col += (*mb_ptr2len)(ptr + col);
else
diff --git a/src/testdir/test_retab.vim b/src/testdir/test_retab.vim
index c7190aa..6133e8f 100644
--- a/src/testdir/test_retab.vim
+++ b/src/testdir/test_retab.vim
@@ -70,6 +70,8 @@ func Test_retab()
call assert_equal(" a b c ", Retab('!', 3))
call assert_equal(" a b c ", Retab('', 5))
call assert_equal(" a b c ", Retab('!', 5))
+
+ set tabstop& expandtab&
endfunc
func Test_retab_error()
@@ -80,4 +82,21 @@ func Test_retab_error()
call assert_fails('ret 80000000000000000000', 'E475:')
endfunc
+func Test_retab_endless()
+ new
+ call setline(1, "\t0\t")
+ let caught = 'no'
+ try
+ while 1
+ set ts=4000
+ retab 4
+ endwhile
+ catch /E1240/
+ let caught = 'yes'
+ endtry
+ bwipe!
+ set tabstop&
+endfunc
+
+
" vim: shiftwidth=2 sts=2 expandtab