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common: Add a function for copying data from one iobuf to another.

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* common/iobuf.c (iobuf_copy): New function.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
This commit is contained in:
Neal H. Walfield 2015-11-05 12:19:45 +01:00
parent 2b0e0a53b4
commit fd4b9e2328
2 changed files with 43 additions and 0 deletions
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8
common/iobuf.h
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@ -552,6 +552,14 @@ int iobuf_write_temp (iobuf_t dest, iobuf_t source);
BUFFER. Returns the number of bytes actually copied. */
size_t iobuf_temp_to_buffer (iobuf_t a, byte * buffer, size_t buflen);
/* Copies the data from the input iobuf SOURCE to the output iobuf
DEST until either an error is encountered or EOF is reached.
Returns the number of bytes successfully written. If an error
occured, then any buffered bytes are not returned to SOURCE and are
effectively lost. To check if an error occured, use
iobuf_error. */
size_t iobuf_copy (iobuf_t dest, iobuf_t source);
/* Return the size of any underlying file. This only works with
file_filter based pipelines.