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vladdu
Posted: Mon Aug 22, 2005 7:36 pm Reply with quote
User Joined: 28 Feb 2005 Posts: 397 Location: Gothenburg, Sweden
Hi,

The OtpOutputStream implementation in jinterface is not conforming to the
external distribution format: method write_string doesn't check if the
length is >= 65536, when the sitring should be output with a listTag, not a
stringTag.

The patch is (sorry, but I have a modified version of the file and the line
numbers don't match)

- if (bytebuf.length == len && len < 65535)
+ if (bytebuf.length == len)

regards,
Vlad


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raimo at erix.ericsson.se
Posted: Tue Aug 23, 2005 10:31 am Reply with quote
Guest
This bug is fixed in R10B (jinterface-1.3) and later:

public void write_string(String s) {
int len = s.length();

switch(len) {
case 0:
this.write_nil();
break;
default:
byte[] bytebuf = s.getBytes();

/* switch to se if the length of
the byte array is equal to the
length of the list, or if the string is too long
for the stream protocol */
if ((bytebuf.length == len) && (len <= 65535)) { /* Usual */
this.write1(OtpExternal.stringTag);
this.write2BE(len);
this.writeN(bytebuf);
}
else { /* Unicode */
char[] charbuf = s.toCharArray();

this.write_list_head(len);

for(int i = 0; i<len; i++)
this.write_char(charbuf[i]);

this.write_nil();
}
}
}

Thank you for finding it anyway!



vlad_dumitrescu_at_hotmail.com (Vlad Dumitrescu) writes:

> Hi,
>
> The OtpOutputStream implementation in jinterface is not conforming to
> the external distribution format: method write_string doesn't check if
> the length is >= 65536, when the sitring should be output with a
> listTag, not a stringTag.
>
> The patch is (sorry, but I have a modified version of the file and the
> line numbers don't match)
>
> - if (bytebuf.length == len && len < 65535)
> + if (bytebuf.length == len)
>
> regards,
> Vlad
>

--

/ Raimo Niskanen, Erlang/OTP, Ericsson AB


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