while (index < pkg->pub.export_count) {
struct upkg_export_priv *export = &pkg->exports[index];
- unsigned long parent_index;
long tmp;
/* Read some data into buffer. */
len += rc;
if (nbuf-len < 4) goto err;
- parent_index = unpack_32_le(buf+len);
+ tmp = unpack_s32_le(buf+len);
+ if (tmp < 0)
+ goto err;
len += 4;
export->pub.parent = NULL;
- if (parent_index > 0) {
- parent_index--;
- if (parent_index >= pkg->pub.export_count)
+ if (tmp > 0) {
+ tmp--;
+ if (tmp >= pkg->pub.export_count)
goto err;
- export->pub.parent = &pkg->exports[parent_index].pub;
+ export->pub.parent = &pkg->exports[tmp].pub;
}
rc = upkg_decode_index(&tmp, buf+len, nbuf-len);