Patches for libpq++ docs and backend/command/copy.c

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Tom Vijlbrief
Your email address : tom.vijlbrief@knoware.nl

System Configuration
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Architecture (example: Intel Pentium) : Intel PII

Operating System (example: Linux 2.0.26 ELF) : Linux 2.3.51

PostgreSQL version (example: PostgreSQL-6.5.3): PostgreSQL-6.5.3

Compiler used (example: gcc 2.8.0) : egcs-2.91.66

Please enter a FULL description of your problem:
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There are a few bugs in the doc for libpq++.

Incorrect use of lowercase methods (putline should be PutLine)
\et should be \t
\en should be \n
data.putline(".\en") should be data.PutLine("\\.\n")
...

I added a patch as attachment to this mail

I also found that there is a problem when a client
exits when "copy from stdin" is active. Postgres does
not detect that the connection is broken, the postmaster generates
many kilobytes (thousands of lines) of errors:

...
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
pq_recvbuf: unexpected EOF on client connection
ERROR: CopyReadAttribute - attribute length too long. line: 4
pq_flush: send() failed: Broken pipe
pq_flush: send() failed: Broken pipe
pq_recvbuf: unexpected EOF on client connection

I added a patch for this problem also.

Note that I'm working on a C++ class derived from PgDatabase
that signals errors by throwing exceptions. I'll submit it when it's
finished...

Please describe a way to repeat the problem. Please try to provide a
concise reproducible example, if at all possible:
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It can be reproduced by compiling and running the attached program
testbad.cxx
The program wil hang, exiting by hitting ^C (interrupt) wil produce
the error messages

The patched postgres will produce:

pq_recvbuf: unexpected EOF on client connection
pq_flush: send() failed: Broken pipe
pq_recvbuf: unexpected EOF on client connection

If you know how this problem might be fixed, list the solution below:
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two patches attached to mail