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* common/ksba-io-support.c: Include tlv.h (struct reader_cb_parm_s): Add new fields. (starts_with_sequence): New. (simple_reader_cb): Handle stripping. * common/ksba-io-support.h (GNUPG_KSBA_IO_STRIP): New. (gnupg_ksba_create_reader): Handle the new flag. * sm/verify.c (gpgsm_verify): Use the new flag for detached signatures. -- Note that this works only if --assume-binary is given. The use case for the feature is PDF signature checking where the PDF specs require that the detached signature is padded with zeroes.
68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/* ksba-io-support.h - Supporting functions for ksba reader and writer
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* Copyright (C) 2017 Werner Koch
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*
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* This file is part of GnuPG.
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of either
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*
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* - the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* or
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*
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* - the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* or both in parallel, as here.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef GNUPG_KSBA_IO_SUPPORT_H
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#define GNUPG_KSBA_IO_SUPPORT_H
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/* Flags used with gnupg_ksba_create_reader and
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* gnupg_ksba_create_writer. */
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#define GNUPG_KSBA_IO_PEM 1 /* X.509 PEM format. */
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#define GNUPG_KSBA_IO_BASE64 2 /* Plain Base64 format. */
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#define GNUPG_KSBA_IO_AUTODETECT 4 /* Try to autodetect the format. */
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#define GNUPG_KSBA_IO_MULTIPEM 8 /* Allow more than one PEM chunk. */
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#define GNUPG_KSBA_IO_STRIP 16 /* Strip off zero padding. */
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/* Context object. */
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typedef struct gnupg_ksba_io_s *gnupg_ksba_io_t;
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gpg_error_t gnupg_ksba_create_reader (gnupg_ksba_io_t *ctx,
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unsigned int flags,
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estream_t fp,
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ksba_reader_t *r_reader);
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int gnupg_ksba_reader_eof_seen (gnupg_ksba_io_t ctx);
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void gnupg_ksba_destroy_reader (gnupg_ksba_io_t ctx);
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gpg_error_t gnupg_ksba_create_writer (gnupg_ksba_io_t *ctx,
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unsigned int flags,
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const char *pem_name,
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estream_t stream,
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ksba_writer_t *r_writer);
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gpg_error_t gnupg_ksba_finish_writer (gnupg_ksba_io_t ctx);
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void gnupg_ksba_destroy_writer (gnupg_ksba_io_t ctx);
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#endif /*GNUPG_KSBA_IO_SUPPORT_H*/
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