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szip: fix panic on empty files (#24335)

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JalonSolov 2025-04-29 02:07:09 -04:00 committed by GitHub
parent 57b815f96d
commit 8fc7aeca38
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2 changed files with 9 additions and 1 deletions
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2
vlib/compress/szip/szip.c.v
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@ -183,7 +183,7 @@ pub fn (mut zentry Zip) crc32() u32 {
// write_entry compresses an input buffer for the current zip entry.
pub fn (mut zentry Zip) write_entry(data []u8) ! {
if int(data[0] & 0xff) == -1 {
if data.len > 0 && int(data[0] & 0xff) == -1 {
return error('szip: cannot write entry')
}
res := C.zip_entry_write(zentry, data.data, data.len)

8
vlib/compress/szip/szip_test.v
View File

@ -170,3 +170,11 @@ fn test_zip_folder_omit_empty_directories() {
assert (os.read_file(fpath5)!) == '5'
assert (os.read_file(fpath6)!) == '6'
}
fn test_zip_folder_empty_file() {
cleanup()
os.mkdir_all(test_path)!
os.write_file('${test_path}/test.txt', '')! // Empty file
szip.zip_folder(test_path, test_dir_zip)!
assert os.exists(test_dir_zip)
}