From 431c037709d1e0e44a97b9eaa51afdc8354b492c Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Sun, 30 Mar 2025 21:41:05 +0800
Subject: vim-patch:9.1.1260: Hang when filtering buffer with NUL bytes
 (#33192)

Problem:  Hang when filtering buffer with NUL bytes (after 9.1.1050).
Solution: Don't subtract "written" from "lplen" repeatedly (zeertzjq).

related: neovim/neovim#33173
closes: vim/vim#17011

https://github.com/vim/vim/commit/53fed23cb7bd59d9400961b44c6c8dca0029c929
---
 src/nvim/os/shell.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/nvim/os/shell.c b/src/nvim/os/shell.c
index d60d0b3e55..e711611d67 100644
--- a/src/nvim/os/shell.c
+++ b/src/nvim/os/shell.c
@@ -1211,7 +1211,6 @@ static void read_input(StringBuilder *buf)
   size_t lplen = (size_t)ml_get_len(lnum);
 
   while (true) {
-    lplen -= written;
     if (lplen == 0) {
       len = 0;
     } else if (lp[written] == NL) {
@@ -1220,11 +1219,11 @@ static void read_input(StringBuilder *buf)
       kv_push(*buf, NUL);
     } else {
       char *s = vim_strchr(lp + written, NL);
-      len = s == NULL ? lplen : (size_t)(s - (lp + written));
+      len = s == NULL ? lplen - written : (size_t)(s - (lp + written));
       kv_concat_len(*buf, lp + written, len);
     }
 
-    if (len == lplen) {
+    if (len == lplen - written) {
       // Finished a line, add a NL, unless this line should not have one.
       if (lnum != curbuf->b_op_end.lnum
           || (!curbuf->b_p_bin && curbuf->b_p_fixeol)
-- 
cgit