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2003 Nov 14
2
writeChar potential buffer overrun (PR#5090)
...wing this. But
in src/main/connections.c it looks like do_writechar doesn't
check the length of strings when given an explicit nchars
argument; so I think the strncpy() call will read too far.
[This happened because I didn't remember that R lets null
terminate strings; so I did a readChar(infh, nchars=6144)
through some nulls at the start of the header, and ended up
with a much shorter string than I was expecting. As far as
I can tell do_readchar still behaves in these circumstances,
and in any case I can produce the fault without it.]
Using readBin and writeBin with integer() and size...