diff options
Diffstat (limited to 'src/import.c')
| -rw-r--r-- | src/import.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/src/import.c b/src/import.c new file mode 100644 index 00000000..ad6b776b --- /dev/null +++ b/src/import.c @@ -0,0 +1,273 @@ +/* import.c - Import a key. + Copyright (C) 2000 Werner Koch (dd9jn) + Copyright (C) 2001, 2002, 2003, 2004 g10 Code GmbH + + This file is part of GPGME. + + GPGME is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of + the License, or (at your option) any later version. + + GPGME 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ + +#if HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdlib.h> +#include <errno.h> +#include <string.h> + +#include "gpgme.h" +#include "context.h" +#include "ops.h" + + +typedef struct +{ + struct _gpgme_op_import_result result; + + /* A pointer to the next pointer of the last import status in the + list. This makes appending new imports painless while preserving + the order. */ + gpgme_import_status_t *lastp; +} *op_data_t; + + +static void +release_op_data (void *hook) +{ + op_data_t opd = (op_data_t) hook; + gpgme_import_status_t import = opd->result.imports; + + while (import) + { + gpgme_import_status_t next = import->next; + free (import->fpr); + free (import); + import = next; + } +} + + +gpgme_import_result_t +gpgme_op_import_result (gpgme_ctx_t ctx) +{ + void *hook; + op_data_t opd; + gpgme_error_t err; + + err = _gpgme_op_data_lookup (ctx, OPDATA_IMPORT, &hook, -1, NULL); + opd = hook; + if (err || !opd) + return NULL; + + return &opd->result; +} + + +static gpgme_error_t +parse_import (char *args, gpgme_import_status_t *import_status, int problem) +{ + gpgme_import_status_t import; + char *tail; + long int nr; + + import = malloc (sizeof (*import)); + if (!import) + return gpg_error_from_errno (errno); + import->next = NULL; + + errno = 0; + nr = strtol (args, &tail, 0); + if (errno || args == tail || *tail != ' ') + { + /* The crypto backend does not behave. */ + free (import); + return gpg_error (GPG_ERR_INV_ENGINE); + } + args = tail; + + if (problem) + { + switch (nr) + { + case 0: + case 4: + default: + import->result = gpg_error (GPG_ERR_GENERAL); + break; + + case 1: + import->result = gpg_error (GPG_ERR_BAD_CERT); + break; + + case 2: + import->result = gpg_error (GPG_ERR_MISSING_CERT); + break; + + case 3: + import->result = gpg_error (GPG_ERR_BAD_CERT_CHAIN); + break; + } + import->status = 0; + } + else + { + import->result = gpg_error (GPG_ERR_NO_ERROR); + import->status = nr; + } + + while (*args == ' ') + args++; + tail = strchr (args, ' '); + if (tail) + *tail = '\0'; + + import->fpr = strdup (args); + if (!import->fpr) + { + int saved_errno = errno; + free (import); + return gpg_error_from_errno (saved_errno); + } + + *import_status = import; + return 0; +} + + + +gpgme_error_t +parse_import_res (char *args, gpgme_import_result_t result) +{ + char *tail; + + errno = 0; + +#define PARSE_NEXT(x) \ + (x) = strtol (args, &tail, 0); \ + if (errno || args == tail || *tail != ' ') \ + /* The crypto backend does not behave. */ \ + return gpg_error (GPG_ERR_INV_ENGINE); \ + args = tail; + + PARSE_NEXT (result->considered); + PARSE_NEXT (result->no_user_id); + PARSE_NEXT (result->imported); + PARSE_NEXT (result->imported_rsa); + PARSE_NEXT (result->unchanged); + PARSE_NEXT (result->new_user_ids); + PARSE_NEXT (result->new_sub_keys); + PARSE_NEXT (result->new_signatures); + PARSE_NEXT (result->new_revocations); + PARSE_NEXT (result->secret_read); + PARSE_NEXT (result->secret_imported); + PARSE_NEXT (result->secret_unchanged); + PARSE_NEXT (result->skipped_new_keys); + PARSE_NEXT (result->not_imported); + + return 0; +} + + +static gpgme_error_t +import_status_handler (void *priv, gpgme_status_code_t code, char *args) +{ + gpgme_ctx_t ctx = (gpgme_ctx_t) priv; + gpgme_error_t err; + void *hook; + op_data_t opd; + + err = _gpgme_op_data_lookup (ctx, OPDATA_IMPORT, &hook, -1, NULL); + opd = hook; + if (err) + return err; + + switch (code) + { + case GPGME_STATUS_IMPORT_OK: + case GPGME_STATUS_IMPORT_PROBLEM: + err = parse_import (args, opd->lastp, + code == GPGME_STATUS_IMPORT_OK ? 0 : 1); + if (err) + return err; + + opd->lastp = &(*opd->lastp)->next; + break; + + case GPGME_STATUS_IMPORT_RES: + err = parse_import_res (args, &opd->result); + break; + + default: + break; + } + return 0; +} + + +static gpgme_error_t +_gpgme_op_import_start (gpgme_ctx_t ctx, int synchronous, gpgme_data_t keydata) +{ + gpgme_error_t err; + void *hook; + op_data_t opd; + + err = _gpgme_op_reset (ctx, synchronous); + if (err) + return err; + + err = _gpgme_op_data_lookup (ctx, OPDATA_IMPORT, &hook, + sizeof (*opd), release_op_data); + opd = hook; + if (err) + return err; + opd->lastp = &opd->result.imports; + + if (!keydata) + return gpg_error (GPG_ERR_NO_DATA); + + _gpgme_engine_set_status_handler (ctx->engine, import_status_handler, ctx); + + return _gpgme_engine_op_import (ctx->engine, keydata); +} + + +gpgme_error_t +gpgme_op_import_start (gpgme_ctx_t ctx, gpgme_data_t keydata) +{ + return _gpgme_op_import_start (ctx, 0, keydata); +} + + +/* Import the key in KEYDATA into the keyring. */ +gpgme_error_t +gpgme_op_import (gpgme_ctx_t ctx, gpgme_data_t keydata) +{ + gpgme_error_t err = _gpgme_op_import_start (ctx, 1, keydata); + if (!err) + err = _gpgme_wait_one (ctx); + return err; +} + + +gpgme_error_t +gpgme_op_import_ext (gpgme_ctx_t ctx, gpgme_data_t keydata, int *nr) +{ + gpgme_error_t err = gpgme_op_import (ctx, keydata); + if (!err && nr) + { + gpgme_import_result_t result = gpgme_op_import_result (ctx); + *nr = result->considered; + } + return err; +} |