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Merge #6958 from ZyX-I/fix-6957

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This commit is contained in:
Justin M. Keyes 2017-07-04 21:56:05 +02:00 committed by GitHub
commit 1b70a1da04
3 changed files with 36 additions and 3 deletions
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12
src/nvim/shada.c
View File

@ -3413,8 +3413,16 @@ shada_read_next_item_start:
return mru_ret;
}
const size_t length = (size_t) length_u64;
entry->timestamp = (Timestamp) timestamp_u64;
if (length_u64 > PTRDIFF_MAX) {
emsgf(_(RCERR "Error while reading ShaDa file: "
"there is an item at position %" PRIu64 " "
"that is stated to be too long"),
initial_fpos);
return kSDReadStatusNotShaDa;
}
const size_t length = (size_t)length_u64;
entry->timestamp = (Timestamp)timestamp_u64;
if (type_u64 == 0) {
// kSDItemUnknown cannot possibly pass that far because it is -1 and that

9
test/functional/helpers.lua
View File

@ -319,7 +319,14 @@ end
-- Dedent the given text and write it to the file name.
local function write_file(name, text, dont_dedent)
local file = io.open(name, 'w')
if not dont_dedent then
if type(text) == 'table' then
-- Byte blob
local bytes = text
text = ''
for _, char in ipairs(bytes) do
text = ('%s%c'):format(text, char)
end
elseif not dont_dedent then
text = dedent(text)
end
file:write(text)

18
test/functional/shada/errors_spec.lua
View File

@ -510,4 +510,22 @@ $
.. '\nE574: Failed to write variable L',
redir_exec('wshada'))
end)
it('errors with too large items', function()
wshada({
1, 206, 70, 90, 31, 179, 86, 133, 169, 103, 101, 110, 101, 114, 97,
116, 111, 114, 196, 4, 145, 145, 145, 145, 145, 145, 96, 96, 96, 96,
96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96,
96, 96, 145, 145, 145, 145, 111, 110, 196, 25, 78, 86, 73, 77, 32,
118, 1, 46, 50, 46, 48, 45, 51, 48, 51, 45, 103, 98, 54, 55,
52, 102, 100, 50, 99, 169, 109, 97, 120, 95, 107, 98, 121, 116, 101,
10, 207, 207, 207, 207, 207, 207, 207, 207, 207, 207, 207, 207, 207, 207,
207, 207, 207, 207, 207, 207, 207, 207, 16, 8, 206, 89, 90, 30, 253,
35, 129, 161, 102, 196, 30, 47, 100, 101, 118, 47, 115, 104, 109, 47,
102, 117, 122, 122, 105, 110, 103, 45, 110, 118, 105, 109, 45, 115, 104,
97, 100, 97, 47, 108, 115, 2, 206, 89, 90, 30, 251, 13, 130, 162,
115, 112, 196, 3, 102, 111, 111, 162, 115, 99, 195, 3, 146, 10, 0,
})
eq('Vim(rshada):E576: Error while reading ShaDa file: there is an item at position 93 that is stated to be too long', exc_exec(sdrcmd()))
end)
end)