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-rw-r--r--src/xz/file_io.c5
-rw-r--r--src/xz/file_io.h4
2 files changed, 4 insertions, 5 deletions
diff --git a/src/xz/file_io.c b/src/xz/file_io.c
index a181b531..767c819a 100644
--- a/src/xz/file_io.c
+++ b/src/xz/file_io.c
@@ -1157,8 +1157,7 @@ io_fix_src_pos(file_pair *pair, size_t rewind_size)
extern size_t
io_read(file_pair *pair, io_buf *buf, size_t size)
{
- // We use small buffers here.
- assert(size < SSIZE_MAX);
+ assert(size <= IO_BUFFER_SIZE);
size_t pos = 0;
@@ -1285,7 +1284,7 @@ is_sparse(const io_buf *buf)
static bool
io_write_buf(file_pair *pair, const uint8_t *buf, size_t size)
{
- assert(size < SSIZE_MAX);
+ assert(size <= IO_BUFFER_SIZE);
while (size > 0) {
const ssize_t amount = write(pair->dest_fd, buf, size);
diff --git a/src/xz/file_io.h b/src/xz/file_io.h
index 8a9e3363..6992efa4 100644
--- a/src/xz/file_io.h
+++ b/src/xz/file_io.h
@@ -118,7 +118,7 @@ extern void io_close(file_pair *pair, bool success);
///
/// \param pair File pair having the source file open for reading
/// \param buf Destination buffer to hold the read data
-/// \param size Size of the buffer; assumed be smaller than SSIZE_MAX
+/// \param size Size of the buffer; must be at most IO_BUFFER_SIZE
///
/// \return On success, number of bytes read is returned. On end of
/// file zero is returned and pair->src_eof set to true.
@@ -172,7 +172,7 @@ extern bool io_pread(file_pair *pair, io_buf *buf, size_t size, uint64_t pos);
///
/// \param pair File pair having the destination file open for writing
/// \param buf Buffer containing the data to be written
-/// \param size Size of the buffer; assumed be smaller than SSIZE_MAX
+/// \param size Size of the buffer; must be at most IO_BUFFER_SIZE
///
/// \return On success, zero is returned. On error, -1 is returned
/// and error message printed.