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diff --git a/src/hcom.c b/src/hcom.c
index e76820e..fb8de99 100644
--- a/src/hcom.c
+++ b/src/hcom.c
@@ -428,12 +428,19 @@ static int stopwrite(sox_format_t * ft)
{
priv_t *p = (priv_t *) ft->priv;
unsigned char *compressed_data = p->data;
- size_t compressed_len = p->pos;
+ int32_t compressed_len = (int32_t)p->pos;
int rc = SOX_SUCCESS;
+ if (p->pos >> 32 > 0)
+ lsx_warn(
+ "%s: possible data loss"
+ " (the size of data to be written has exceeded its limit)",
+ ft->filename
+ );
+
/* Compress it all at once */
if (compressed_len)
- compress(ft, &compressed_data, (int32_t *)&compressed_len);
+ compress(ft, &compressed_data, &compressed_len);
free(p->data);
/* Write the header */
@@ -447,7 +454,7 @@ static int stopwrite(sox_format_t * ft)
if (lsx_error(ft)) {
lsx_fail_errno(ft, errno, "write error in HCOM header");
rc = SOX_EOF;
- } else if (lsx_writebuf(ft, compressed_data, compressed_len) != compressed_len) {
+ } else if (lsx_writebuf(ft, compressed_data, (size_t) compressed_len) != (size_t) compressed_len) {
/* Write the compressed_data fork */
lsx_fail_errno(ft, errno, "can't write compressed HCOM data");
rc = SOX_EOF;
@@ -456,7 +463,7 @@ static int stopwrite(sox_format_t * ft)
if (rc == SOX_SUCCESS)
/* Pad the compressed_data fork to a multiple of 128 bytes */
- lsx_padbytes(ft, 128u - (compressed_len % 128));
+ lsx_padbytes(ft, (size_t) 128 - (compressed_len % 128));
return rc;
}
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