60 lines
1.7 KiB
Diff
60 lines
1.7 KiB
Diff
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From f12129f1714f7d2301935bb21d896609bdac221c Mon Sep 17 00:00:00 2001
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From: Bram Moolenaar <Bram@vim.org>
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Date: Fri, 1 Jul 2022 19:58:30 +0100
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Subject: [PATCH] patch 9.0.0020: with some completion reading past end of
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string
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Problem: With some completion reading past end of string.
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Solution: Check the length of the string.
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---
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src/insexpand.c | 14 ++++++++++++--
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src/testdir/test_ins_complete.vim | 7 +++++++
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2 files changed, 19 insertions(+), 2 deletions(-)
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diff --git a/src/insexpand.c b/src/insexpand.c
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index 50e0579..66a836e 100644
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--- a/src/insexpand.c
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+++ b/src/insexpand.c
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@@ -2038,11 +2038,21 @@ ins_compl_prep(int c)
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// but only do this, if the Popup is still visible
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if (c == Ctrl_E)
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{
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+ char_u *p = NULL;
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+
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ins_compl_delete();
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if (compl_leader != NULL)
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- ins_bytes(compl_leader + ins_compl_len());
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+ p = compl_leader;
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else if (compl_first_match != NULL)
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- ins_bytes(compl_orig_text + ins_compl_len());
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+ p = compl_orig_text;
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+ if (p != NULL)
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+ {
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+ int compl_len = ins_compl_len();
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+ int len = (int)STRLEN(p);
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+
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+ if (len > compl_len)
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+ ins_bytes_len(p + compl_len, len - compl_len);
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+ }
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retval = TRUE;
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}
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diff --git a/src/testdir/test_ins_complete.vim b/src/testdir/test_ins_complete.vim
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index 8f584d3..b7cfd29 100644
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--- a/src/testdir/test_ins_complete.vim
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+++ b/src/testdir/test_ins_complete.vim
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@@ -390,3 +390,10 @@ func Test_ins_complete_add()
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bwipe!
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endfunc
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+func Test_complete_overrun()
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+ " this was going past the end of the copied text
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+ new
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+ sil norm si0s0
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+ bwipe!
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+endfunc
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+
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--
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1.8.3.1
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