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* common/iobuf.h (enum iobuf_use): Add new member, IOBUF_INPUT_TEMP. * common/iobuf.c (iobuf_temp_with_content): Create the iobuf as an IOBUF_INPUT_TEMP, not an IOBUF_INPUT buffer. Assert that LENGTH == A->D.SIZE. (iobuf_push_filter2): If A is an IOBUF_INPUT_TEMP, then make the new filter an IOBUF_INPUT filter and set its buffer size to IOBUF_BUFFER_SIZE. (underflow): If A is an IOBUF_INPUT_TEMP, then just return EOF; don't remove already read data. (iobuf_seek): If A is an IOBUF_INPUT_TEMP, don't discard the buffered data. (iobuf_alloc): Allow USE == IOBUF_INPUT_TEMP. (pop_filter): Allow USE == IOBUF_INPUT_TEMP. (iobuf_peek): Allow USE == IOBUF_INPUT_TEMP. (iobuf_writebyte): Fail if USE == IOBUF_INPUT_TEMP. (iobuf_write): Fail if USE == IOBUF_INPUT_TEMP. (iobuf_writestr): Fail if USE == IOBUF_INPUT_TEMP. (iobuf_flush_temp): Fail if USE == IOBUF_INPUT_TEMP. -- Signed-off-by: Neal H. Walfield <neal@g10code.com>. Introduce a new iobuf type, IOBUF_INPUT_TEMP. Use this for the iobuf created by iobuf_temp_with_content instead of IOBUF_INPUT. This was necessary so that seeking and peeking correctly work on this type of iobuf. In particular, seeking didn't work because we discarded the buffered data and peeking didn't work because we discarded data which was already read, which made seeking later impossible.
Stuff used by several modules of GnuPG. These directories use it: gpg sm agent These directories don't use it: kbx