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API: fix nvim_command_output buffer overflow (#10830)

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Fixes https://github.com/neovim/neovim/issues/10829.
This commit is contained in:
Abdelhakeem Osama
2019-08-22 11:07:54 +03:00
committed by Daniel Hahler
parent ed28668392
commit c6eb1f42be
2 changed files with 6 additions and 1 deletions
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2
src/nvim/api/vim.c
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@@ -364,7 +364,7 @@ String nvim_command_output(String command, Error *err)
};
// redir usually (except :echon) prepends a newline.
if (s.data[0] == '\n') {
memmove(s.data, s.data + 1, s.size);
memmove(s.data, s.data + 1, s.size - 1);
s.data[s.size - 1] = '\0';
s.size = s.size - 1;
}