gnupg/common/name-value.h

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/* name-value.h - Parser and writer for a name-value format.
* Copyright (C) 2016 g10 Code GmbH
*
* This file is part of GnuPG.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of either
*
* - the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* or
*
* - the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* or both in parallel, as here.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
#ifndef GNUPG_COMMON_NAME_VALUE_H
#define GNUPG_COMMON_NAME_VALUE_H
struct name_value_container;
typedef struct name_value_container *nvc_t;
struct name_value_entry;
typedef struct name_value_entry *nve_t;
/* Memory management, and dealing with entries. */
/* Allocate a name value container structure. */
nvc_t nvc_new (void);
/* Allocate a name value container structure for use with the extended
* private key format. */
nvc_t nvc_new_private_key (void);
/* Release a name value container structure. */
void nvc_release (nvc_t pk);
/* Get the name. */
char *nve_name (nve_t pke);
/* Get the value. */
char *nve_value (nve_t pke);
/* Lookup and iteration. */
/* Get the first non-comment entry. */
nve_t nvc_first (nvc_t pk);
/* Get the first entry with the given name. */
nve_t nvc_lookup (nvc_t pk, const char *name);
/* Get the next non-comment entry. */
nve_t nve_next (nve_t entry);
/* Get the next entry with the given name. */
nve_t nve_next_value (nve_t entry, const char *name);
/* Adding and modifying values. */
/* Add (NAME, VALUE) to PK. If an entry with NAME already exists, it
is not updated but the new entry is appended. */
gpg_error_t nvc_add (nvc_t pk, const char *name, const char *value);
/* Add (NAME, VALUE) to PK. If an entry with NAME already exists, it
is updated with VALUE. If multiple entries with NAME exist, the
first entry is updated. */
gpg_error_t nvc_set (nvc_t pk, const char *name, const char *value);
/* Delete the given entry from PK. */
void nvc_delete (nvc_t pk, nve_t pke);
/* Private key handling. */
/* Get the private key. */
gpg_error_t nvc_get_private_key (nvc_t pk, gcry_sexp_t *retsexp);
/* Set the private key. */
gpg_error_t nvc_set_private_key (nvc_t pk, gcry_sexp_t sexp);
/* Parsing and serialization. */
/* Parse STREAM and return a newly allocated private key container
structure in RESULT. If ERRLINEP is given, the line number the
parser was last considering is stored there. */
gpg_error_t nvc_parse (nvc_t *result, int *errlinep, estream_t stream);
/* Parse STREAM and return a newly allocated name value container
structure in RESULT - assuming the extended private key format. If
ERRLINEP is given, the line number the parser was last considering
is stored there. */
gpg_error_t nvc_parse_private_key (nvc_t *result, int *errlinep,
estream_t stream);
/* Write a representation of PK to STREAM. */
gpg_error_t nvc_write (nvc_t pk, estream_t stream);
#endif /* GNUPG_COMMON_NAME_VALUE_H */