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common: Allow a readlimit for iobuf_esopen.

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* common/iobuf.c (file_es_filter_ctx_t): Add fields use_readlimit and
readlimit.
(file_es_filter): Implement them.
(iobuf_esopen): Add new arg readlimit.
* g10/decrypt-data.c (decrypt_data): Adjust for change.
* g10/import.c (import_keys_es_stream): Ditto.
--

This comes handy for (length,datablob) style streams.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2019-09-10 15:45:58 +02:00
parent aba82684fe
commit 2f0fdab8aa
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4 changed files with 41 additions and 6 deletions
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g10/import.c
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@ -550,7 +550,7 @@ import_keys_es_stream (ctrl_t ctrl, estream_t fp,
gpg_error_t err;
iobuf_t inp;
inp = iobuf_esopen (fp, "rb", 1);
inp = iobuf_esopen (fp, "rb", 1, 0);
if (!inp)
{
err = gpg_error_from_syserror ();