[cups.development] [RFE] STR #2261: extend API to add streaming print function cupsPrintStream

[mike]

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[STR New]

currently, cupsPrintFile() is the only method of submitting a print job via
the convenience functions provided by the API.  cupsPrintFile() expects to
be given the name of the file, then cupsPrintFile() opens and reads the
file.

a streaming version of this function utilizing chunked transfer encoding
would be a universally welcome addition to the API.

attached is a patch against cups-1.2 svn as of 2006-02-23 implementing
cupsPrintStream(), just such a streaming print function.

the changes have been tested with linux-2.6.19.1/libc-2.3.6/gcc-4.0.3. 
cupsPrintFile() is modified in the patch to use cupsPrintStream() to
reduce code duplication.  lpr is also modified to use cupsPrintStream()
for printing from stdin.

Link: http://www.cups.org/str.php?L2261
Version:  -feature
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