if (ret != Z_OK)
return -1;
for(;;) {
+ int tag32;
if (s->bytestream >= s->bytestream_end)
goto fail;
length = get32(&s->bytestream);
if (length > 0x7fffffff)
goto fail;
- tag = bswap_32(get32(&s->bytestream));
+ tag32 = get32(&s->bytestream);
+ tag = bswap_32(tag32);
#ifdef DEBUG
printf("png: tag=%c%c%c%c length=%u\n",
(tag & 0xff),