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/* rungpg.c - Gpg Engine.
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Copyright (C) 2000 Werner Koch (dd9jn)
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Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <unistd.h>
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#include <locale.h>
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#include "gpgme.h"
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#include "util.h"
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#include "ops.h"
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#include "wait.h"
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#include "context.h" /*temp hack until we have GpmeData methods to do I/O */
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#include "priv-io.h"
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#include "sema.h"
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#include "debug.h"
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#include "status-table.h"
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#include "engine-backend.h"
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/* This type is used to build a list of gpg arguments and data
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sources/sinks. */
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struct arg_and_data_s
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{
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struct arg_and_data_s *next;
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gpgme_data_t data; /* If this is not NULL, use arg below. */
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int inbound; /* True if this is used for reading from gpg. */
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int dup_to;
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int print_fd; /* Print the fd number and not the special form of it. */
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char arg[1]; /* Used if data above is not used. */
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};
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struct fd_data_map_s
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{
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gpgme_data_t data;
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int inbound; /* true if this is used for reading from gpg */
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int dup_to;
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int fd; /* the fd to use */
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int peer_fd; /* the outher side of the pipe */
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void *tag;
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};
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typedef gpgme_error_t (*colon_preprocessor_t) (char *line, char **rline);
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struct engine_gpg
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{
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char *file_name;
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char *lc_messages;
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char *lc_ctype;
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struct arg_and_data_s *arglist;
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struct arg_and_data_s **argtail;
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struct
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{
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int fd[2];
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size_t bufsize;
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char *buffer;
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size_t readpos;
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int eof;
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engine_status_handler_t fnc;
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void *fnc_value;
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void *tag;
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} status;
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/* This is a kludge - see the comment at colon_line_handler. */
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struct
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{
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int fd[2];
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size_t bufsize;
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char *buffer;
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size_t readpos;
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int eof;
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engine_colon_line_handler_t fnc; /* this indicate use of this structrue */
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void *fnc_value;
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void *tag;
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colon_preprocessor_t preprocess_fnc;
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} colon;
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char **argv;
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struct fd_data_map_s *fd_data_map;
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/* stuff needed for interactive (command) mode */
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struct
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{
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int used;
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int fd;
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void *cb_data;
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int idx; /* Index in fd_data_map */
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gpgme_status_code_t code; /* last code */
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char *keyword; /* what has been requested (malloced) */
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engine_command_handler_t fnc;
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void *fnc_value;
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/* The kludges never end. This is used to couple command handlers
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with output data in edit key mode. */
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gpgme_data_t linked_data;
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int linked_idx;
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} cmd;
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struct gpgme_io_cbs io_cbs;
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};
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typedef struct engine_gpg *engine_gpg_t;
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static void
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gpg_io_event (void *engine, gpgme_event_io_t type, void *type_data)
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{
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engine_gpg_t gpg = engine;
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if (gpg->io_cbs.event)
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(*gpg->io_cbs.event) (gpg->io_cbs.event_priv, type, type_data);
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}
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static void
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close_notify_handler (int fd, void *opaque)
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{
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engine_gpg_t gpg = opaque;
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assert (fd != -1);
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if (gpg->status.fd[0] == fd)
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{
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if (gpg->status.tag)
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(*gpg->io_cbs.remove) (gpg->status.tag);
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gpg->status.fd[0] = -1;
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}
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else if (gpg->status.fd[1] == fd)
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gpg->status.fd[1] = -1;
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else if (gpg->colon.fd[0] == fd)
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{
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if (gpg->colon.tag)
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(*gpg->io_cbs.remove) (gpg->colon.tag);
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gpg->colon.fd[0] = -1;
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}
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else if (gpg->colon.fd[1] == fd)
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gpg->colon.fd[1] = -1;
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else if (gpg->fd_data_map)
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{
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int i;
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for (i = 0; gpg->fd_data_map[i].data; i++)
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{
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if (gpg->fd_data_map[i].fd == fd)
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{
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if (gpg->fd_data_map[i].tag)
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(*gpg->io_cbs.remove) (gpg->fd_data_map[i].tag);
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gpg->fd_data_map[i].fd = -1;
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break;
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}
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if (gpg->fd_data_map[i].peer_fd == fd)
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{
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gpg->fd_data_map[i].peer_fd = -1;
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break;
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}
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}
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}
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}
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/* If FRONT is true, push at the front of the list. Use this for
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options added late in the process. */
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static gpgme_error_t
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add_arg_ext (engine_gpg_t gpg, const char *arg, int front)
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{
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struct arg_and_data_s *a;
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assert (gpg);
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assert (arg);
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a = malloc (sizeof *a + strlen (arg));
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if (!a)
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return gpg_error_from_errno (errno);
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a->data = NULL;
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a->dup_to = -1;
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strcpy (a->arg, arg);
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if (front)
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{
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a->next = gpg->arglist;
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if (!gpg->arglist)
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{
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/* If this is the first argument, we need to update the tail
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pointer. */
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gpg->argtail = &a->next;
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}
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gpg->arglist = a;
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}
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else
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{
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a->next = NULL;
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*gpg->argtail = a;
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gpg->argtail = &a->next;
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}
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return 0;
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}
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static gpgme_error_t
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add_arg (engine_gpg_t gpg, const char *arg)
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{
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return add_arg_ext (gpg, arg, 0);
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}
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static gpgme_error_t
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add_data (engine_gpg_t gpg, gpgme_data_t data, int dup_to, int inbound)
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{
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struct arg_and_data_s *a;
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assert (gpg);
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assert (data);
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a = malloc (sizeof *a - 1);
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if (!a)
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return gpg_error_from_errno (errno);
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a->next = NULL;
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a->data = data;
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a->inbound = inbound;
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if (dup_to == -2)
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{
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a->print_fd = 1;
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a->dup_to = -1;
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}
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else
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{
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a->print_fd = 0;
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a->dup_to = dup_to;
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}
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*gpg->argtail = a;
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gpg->argtail = &a->next;
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return 0;
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}
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static char *
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gpg_get_version (const char *file_name)
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{
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return _gpgme_get_program_version (file_name ? file_name
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: _gpgme_get_gpg_path ());
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}
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static const char *
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gpg_get_req_version (void)
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{
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return NEED_GPG_VERSION;
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}
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static void
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free_argv (char **argv)
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{
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int i;
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for (i = 0; argv[i]; i++)
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free (argv[i]);
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free (argv);
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}
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static void
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free_fd_data_map (struct fd_data_map_s *fd_data_map)
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{
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int i;
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if (!fd_data_map)
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return;
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for (i = 0; fd_data_map[i].data; i++)
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{
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if (fd_data_map[i].fd != -1)
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_gpgme_io_close (fd_data_map[i].fd);
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if (fd_data_map[i].peer_fd != -1)
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_gpgme_io_close (fd_data_map[i].peer_fd);
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/* Don't release data because this is only a reference. */
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}
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free (fd_data_map);
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}
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static gpgme_error_t
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gpg_cancel (void *engine)
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{
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engine_gpg_t gpg = engine;
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if (!gpg)
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return gpg_error (GPG_ERR_INV_VALUE);
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if (gpg->status.fd[0] != -1)
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_gpgme_io_close (gpg->status.fd[0]);
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if (gpg->status.fd[1] != -1)
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_gpgme_io_close (gpg->status.fd[1]);
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if (gpg->colon.fd[0] != -1)
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_gpgme_io_close (gpg->colon.fd[0]);
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if (gpg->colon.fd[1] != -1)
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_gpgme_io_close (gpg->colon.fd[1]);
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if (gpg->fd_data_map)
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{
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free_fd_data_map (gpg->fd_data_map);
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gpg->fd_data_map = NULL;
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}
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if (gpg->cmd.fd != -1)
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_gpgme_io_close (gpg->cmd.fd);
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return 0;
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}
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static void
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gpg_release (void *engine)
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{
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engine_gpg_t gpg = engine;
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if (!gpg)
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return;
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gpg_cancel (engine);
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if (gpg->file_name)
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free (gpg->file_name);
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if (gpg->lc_messages)
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free (gpg->lc_messages);
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if (gpg->lc_ctype)
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free (gpg->lc_ctype);
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while (gpg->arglist)
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{
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struct arg_and_data_s *next = gpg->arglist->next;
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if (gpg->arglist)
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free (gpg->arglist);
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gpg->arglist = next;
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}
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if (gpg->status.buffer)
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free (gpg->status.buffer);
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if (gpg->colon.buffer)
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|
free (gpg->colon.buffer);
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if (gpg->argv)
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free_argv (gpg->argv);
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if (gpg->cmd.keyword)
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|
free (gpg->cmd.keyword);
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|
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free (gpg);
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}
|
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|
|
|
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|
|
static gpgme_error_t
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|
gpg_new (void **engine, const char *file_name, const char *home_dir)
|
|
|
{
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|
|
engine_gpg_t gpg;
|
|
|
gpgme_error_t rc = 0;
|
|
|
char *dft_display = NULL;
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|
char dft_ttyname[64];
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|
char *dft_ttytype = NULL;
|
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|
|
|
|
gpg = calloc (1, sizeof *gpg);
|
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|
if (!gpg)
|
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|
return gpg_error_from_errno (errno);
|
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|
|
|
|
if (file_name)
|
|
|
{
|
|
|
gpg->file_name = strdup (file_name);
|
|
|
if (!gpg->file_name)
|
|
|
{
|
|
|
rc = gpg_error_from_errno (errno);
|
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|
goto leave;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
gpg->argtail = &gpg->arglist;
|
|
|
gpg->status.fd[0] = -1;
|
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|
gpg->status.fd[1] = -1;
|
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|
gpg->colon.fd[0] = -1;
|
|
|
gpg->colon.fd[1] = -1;
|
|
|
gpg->cmd.fd = -1;
|
|
|
gpg->cmd.idx = -1;
|
|
|
gpg->cmd.linked_data = NULL;
|
|
|
gpg->cmd.linked_idx = -1;
|
|
|
|
|
|
/* Allocate the read buffer for the status pipe. */
|
|
|
gpg->status.bufsize = 1024;
|
|
|
gpg->status.readpos = 0;
|
|
|
gpg->status.buffer = malloc (gpg->status.bufsize);
|
|
|
if (!gpg->status.buffer)
|
|
|
{
|
|
|
rc = gpg_error_from_errno (errno);
|
|
|
goto leave;
|
|
|
}
|
|
|
/* In any case we need a status pipe - create it right here and
|
|
|
don't handle it with our generic gpgme_data_t mechanism. */
|
|
|
if (_gpgme_io_pipe (gpg->status.fd, 1) == -1)
|
|
|
{
|
|
|
rc = gpg_error_from_errno (errno);
|
|
|
goto leave;
|
|
|
}
|
|
|
if (_gpgme_io_set_close_notify (gpg->status.fd[0],
|
|
|
close_notify_handler, gpg)
|
|
|
|| _gpgme_io_set_close_notify (gpg->status.fd[1],
|
|
|
close_notify_handler, gpg))
|
|
|
{
|
|
|
rc = gpg_error (GPG_ERR_GENERAL);
|
|
|
goto leave;
|
|
|
}
|
|
|
gpg->status.eof = 0;
|
|
|
|
|
|
if (home_dir)
|
|
|
{
|
|
|
rc = add_arg (gpg, "--homedir");
|
|
|
if (!rc)
|
|
|
rc = add_arg (gpg, home_dir);
|
|
|
if (rc)
|
|
|
goto leave;
|
|
|
}
|
|
|
|
|
|
rc = add_arg (gpg, "--status-fd");
|
|
|
if (rc)
|
|
|
goto leave;
|
|
|
|
|
|
{
|
|
|
char buf[25];
|
|
|
_gpgme_io_fd2str (buf, sizeof (buf), gpg->status.fd[1]);
|
|
|
rc = add_arg (gpg, buf);
|
|
|
if (rc)
|
|
|
goto leave;
|
|
|
}
|
|
|
|
|
|
rc = add_arg (gpg, "--no-tty");
|
|
|
if (!rc)
|
|
|
rc = add_arg (gpg, "--charset");
|
|
|
if (!rc)
|
|
|
rc = add_arg (gpg, "utf8");
|
|
|
if (!rc)
|
|
|
rc = add_arg (gpg, "--enable-progress-filter");
|
|
|
if (rc)
|
|
|
goto leave;
|
|
|
|
|
|
rc = _gpgme_getenv ("DISPLAY", &dft_display);
|
|
|
if (dft_display)
|
|
|
{
|
|
|
rc = add_arg (gpg, "--display");
|
|
|
if (!rc)
|
|
|
rc = add_arg (gpg, dft_display);
|
|
|
|
|
|
free (dft_display);
|
|
|
}
|
|
|
if (rc)
|
|
|
goto leave;
|
|
|
|
|
|
if (isatty (1))
|
|
|
{
|
|
|
if (ttyname_r (1, dft_ttyname, sizeof (dft_ttyname)))
|
|
|
rc = gpg_error_from_errno (errno);
|
|
|
else
|
|
|
{
|
|
|
rc = add_arg (gpg, "--ttyname");
|
|
|
if (!rc)
|
|
|
rc = add_arg (gpg, dft_ttyname);
|
|
|
if (!rc)
|
|
|
{
|
|
|
rc = _gpgme_getenv ("TERM", &dft_ttytype);
|
|
|
if (!rc)
|
|
|
goto leave;
|
|
|
|
|
|
rc = add_arg (gpg, "--ttytype");
|
|
|
if (!rc)
|
|
|
rc = add_arg (gpg, dft_ttytype);
|
|
|
|
|
|
free (dft_ttytype);
|
|
|
}
|
|
|
}
|
|
|
if (rc)
|
|
|
goto leave;
|
|
|
}
|
|
|
|
|
|
leave:
|
|
|
if (rc)
|
|
|
gpg_release (gpg);
|
|
|
else
|
|
|
*engine = gpg;
|
|
|
return rc;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_set_locale (void *engine, int category, const char *value)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
|
|
|
if (category == LC_CTYPE)
|
|
|
{
|
|
|
if (gpg->lc_ctype)
|
|
|
{
|
|
|
free (gpg->lc_ctype);
|
|
|
gpg->lc_ctype = NULL;
|
|
|
}
|
|
|
if (value)
|
|
|
{
|
|
|
gpg->lc_ctype = strdup (value);
|
|
|
if (!gpg->lc_ctype)
|
|
|
return gpg_error_from_syserror ();
|
|
|
}
|
|
|
}
|
|
|
#ifdef LC_MESSAGES
|
|
|
else if (category == LC_MESSAGES)
|
|
|
{
|
|
|
if (gpg->lc_messages)
|
|
|
{
|
|
|
free (gpg->lc_messages);
|
|
|
gpg->lc_messages = NULL;
|
|
|
}
|
|
|
if (value)
|
|
|
{
|
|
|
gpg->lc_messages = strdup (value);
|
|
|
if (!gpg->lc_messages)
|
|
|
return gpg_error_from_syserror ();
|
|
|
}
|
|
|
}
|
|
|
#endif /* LC_MESSAGES */
|
|
|
else
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
/* Note, that the status_handler is allowed to modifiy the args
|
|
|
value. */
|
|
|
static void
|
|
|
gpg_set_status_handler (void *engine, engine_status_handler_t fnc,
|
|
|
void *fnc_value)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
|
|
|
gpg->status.fnc = fnc;
|
|
|
gpg->status.fnc_value = fnc_value;
|
|
|
}
|
|
|
|
|
|
/* Kludge to process --with-colon output. */
|
|
|
static gpgme_error_t
|
|
|
gpg_set_colon_line_handler (void *engine, engine_colon_line_handler_t fnc,
|
|
|
void *fnc_value)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
|
|
|
gpg->colon.bufsize = 1024;
|
|
|
gpg->colon.readpos = 0;
|
|
|
gpg->colon.buffer = malloc (gpg->colon.bufsize);
|
|
|
if (!gpg->colon.buffer)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
|
|
|
if (_gpgme_io_pipe (gpg->colon.fd, 1) == -1)
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (gpg->colon.buffer);
|
|
|
gpg->colon.buffer = NULL;
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
if (_gpgme_io_set_close_notify (gpg->colon.fd[0], close_notify_handler, gpg)
|
|
|
|| _gpgme_io_set_close_notify (gpg->colon.fd[1],
|
|
|
close_notify_handler, gpg))
|
|
|
return gpg_error (GPG_ERR_GENERAL);
|
|
|
gpg->colon.eof = 0;
|
|
|
gpg->colon.fnc = fnc;
|
|
|
gpg->colon.fnc_value = fnc_value;
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
command_handler (void *opaque, int fd)
|
|
|
{
|
|
|
gpgme_error_t err;
|
|
|
engine_gpg_t gpg = (engine_gpg_t) opaque;
|
|
|
int processed = 0;
|
|
|
|
|
|
assert (gpg->cmd.used);
|
|
|
assert (gpg->cmd.code);
|
|
|
assert (gpg->cmd.fnc);
|
|
|
|
|
|
err = gpg->cmd.fnc (gpg->cmd.fnc_value, gpg->cmd.code, gpg->cmd.keyword, fd,
|
|
|
&processed);
|
|
|
if (err)
|
|
|
return err;
|
|
|
|
|
|
/* We always need to send at least a newline character. */
|
|
|
if (!processed)
|
|
|
_gpgme_io_write (fd, "\n", 1);
|
|
|
|
|
|
gpg->cmd.code = 0;
|
|
|
/* And sleep again until read_status will wake us up again. */
|
|
|
/* XXX We must check if there are any more fds active after removing
|
|
|
this one. */
|
|
|
(*gpg->io_cbs.remove) (gpg->fd_data_map[gpg->cmd.idx].tag);
|
|
|
gpg->cmd.fd = gpg->fd_data_map[gpg->cmd.idx].fd;
|
|
|
gpg->fd_data_map[gpg->cmd.idx].fd = -1;
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* The Fnc will be called to get a value for one of the commands with
|
|
|
a key KEY. If the Code pssed to FNC is 0, the function may release
|
|
|
resources associated with the returned value from another call. To
|
|
|
match such a second call to a first call, the returned value from
|
|
|
the first call is passed as keyword. */
|
|
|
static gpgme_error_t
|
|
|
gpg_set_command_handler (void *engine, engine_command_handler_t fnc,
|
|
|
void *fnc_value, gpgme_data_t linked_data)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t rc;
|
|
|
|
|
|
rc = add_arg (gpg, "--command-fd");
|
|
|
if (rc)
|
|
|
return rc;
|
|
|
|
|
|
/* This is a hack. We don't have a real data object. The only
|
|
|
thing that matters is that we use something unique, so we use the
|
|
|
address of the cmd structure in the gpg object. */
|
|
|
rc = add_data (gpg, (void *) &gpg->cmd, -2, 0);
|
|
|
if (rc)
|
|
|
return rc;
|
|
|
|
|
|
gpg->cmd.fnc = fnc;
|
|
|
gpg->cmd.cb_data = (void *) &gpg->cmd;
|
|
|
gpg->cmd.fnc_value = fnc_value;
|
|
|
gpg->cmd.linked_data = linked_data;
|
|
|
gpg->cmd.used = 1;
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
build_argv (engine_gpg_t gpg)
|
|
|
{
|
|
|
gpgme_error_t err;
|
|
|
struct arg_and_data_s *a;
|
|
|
struct fd_data_map_s *fd_data_map;
|
|
|
size_t datac=0, argc=0;
|
|
|
char **argv;
|
|
|
int need_special = 0;
|
|
|
int use_agent = 0;
|
|
|
char *p;
|
|
|
|
|
|
/* We don't want to use the agent with a malformed environment
|
|
|
variable. This is only a very basic test but sufficient to make
|
|
|
our life in the regression tests easier. */
|
|
|
err = _gpgme_getenv ("GPG_AGENT_INFO", &p);
|
|
|
if (err)
|
|
|
return err;
|
|
|
use_agent = (p && strchr (p, ':'));
|
|
|
if (p)
|
|
|
free (p);
|
|
|
|
|
|
if (gpg->argv)
|
|
|
{
|
|
|
free_argv (gpg->argv);
|
|
|
gpg->argv = NULL;
|
|
|
}
|
|
|
if (gpg->fd_data_map)
|
|
|
{
|
|
|
free_fd_data_map (gpg->fd_data_map);
|
|
|
gpg->fd_data_map = NULL;
|
|
|
}
|
|
|
|
|
|
argc++; /* For argv[0]. */
|
|
|
for (a = gpg->arglist; a; a = a->next)
|
|
|
{
|
|
|
argc++;
|
|
|
if (a->data)
|
|
|
{
|
|
|
/*fprintf (stderr, "build_argv: data\n" );*/
|
|
|
datac++;
|
|
|
if (a->dup_to == -1 && !a->print_fd)
|
|
|
need_special = 1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
/* fprintf (stderr, "build_argv: arg=`%s'\n", a->arg );*/
|
|
|
}
|
|
|
}
|
|
|
if (need_special)
|
|
|
argc++;
|
|
|
if (use_agent)
|
|
|
argc++;
|
|
|
if (!gpg->cmd.used)
|
|
|
argc++; /* --batch */
|
|
|
argc += 1; /* --no-sk-comment */
|
|
|
|
|
|
argv = calloc (argc + 1, sizeof *argv);
|
|
|
if (!argv)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
fd_data_map = calloc (datac + 1, sizeof *fd_data_map);
|
|
|
if (!fd_data_map)
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free_argv (argv);
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
|
|
|
argc = datac = 0;
|
|
|
argv[argc] = strdup ("gpg"); /* argv[0] */
|
|
|
if (!argv[argc])
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (fd_data_map);
|
|
|
free_argv (argv);
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
argc++;
|
|
|
if (need_special)
|
|
|
{
|
|
|
argv[argc] = strdup ("--enable-special-filenames");
|
|
|
if (!argv[argc])
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (fd_data_map);
|
|
|
free_argv (argv);
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
argc++;
|
|
|
}
|
|
|
if (use_agent)
|
|
|
{
|
|
|
argv[argc] = strdup ("--use-agent");
|
|
|
if (!argv[argc])
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (fd_data_map);
|
|
|
free_argv (argv);
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
argc++;
|
|
|
}
|
|
|
if (!gpg->cmd.used)
|
|
|
{
|
|
|
argv[argc] = strdup ("--batch");
|
|
|
if (!argv[argc])
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (fd_data_map);
|
|
|
free_argv (argv);
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
argc++;
|
|
|
}
|
|
|
argv[argc] = strdup ("--no-sk-comment");
|
|
|
if (!argv[argc])
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (fd_data_map);
|
|
|
free_argv (argv);
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
argc++;
|
|
|
for (a = gpg->arglist; a; a = a->next)
|
|
|
{
|
|
|
if (a->data)
|
|
|
{
|
|
|
/* Create a pipe to pass it down to gpg. */
|
|
|
fd_data_map[datac].inbound = a->inbound;
|
|
|
|
|
|
/* Create a pipe. */
|
|
|
{
|
|
|
int fds[2];
|
|
|
|
|
|
if (_gpgme_io_pipe (fds, fd_data_map[datac].inbound ? 1 : 0)
|
|
|
== -1)
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (fd_data_map);
|
|
|
free_argv (argv);
|
|
|
return gpg_error (saved_errno);
|
|
|
}
|
|
|
if (_gpgme_io_set_close_notify (fds[0],
|
|
|
close_notify_handler, gpg)
|
|
|
|| _gpgme_io_set_close_notify (fds[1],
|
|
|
close_notify_handler,
|
|
|
gpg))
|
|
|
{
|
|
|
return gpg_error (GPG_ERR_GENERAL);
|
|
|
}
|
|
|
/* If the data_type is FD, we have to do a dup2 here. */
|
|
|
if (fd_data_map[datac].inbound)
|
|
|
{
|
|
|
fd_data_map[datac].fd = fds[0];
|
|
|
fd_data_map[datac].peer_fd = fds[1];
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
fd_data_map[datac].fd = fds[1];
|
|
|
fd_data_map[datac].peer_fd = fds[0];
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/* Hack to get hands on the fd later. */
|
|
|
if (gpg->cmd.used)
|
|
|
{
|
|
|
if (gpg->cmd.cb_data == a->data)
|
|
|
{
|
|
|
assert (gpg->cmd.idx == -1);
|
|
|
gpg->cmd.idx = datac;
|
|
|
}
|
|
|
else if (gpg->cmd.linked_data == a->data)
|
|
|
{
|
|
|
assert (gpg->cmd.linked_idx == -1);
|
|
|
gpg->cmd.linked_idx = datac;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
fd_data_map[datac].data = a->data;
|
|
|
fd_data_map[datac].dup_to = a->dup_to;
|
|
|
if (a->dup_to == -1)
|
|
|
{
|
|
|
char *ptr;
|
|
|
int buflen = 25;
|
|
|
|
|
|
argv[argc] = malloc (buflen);
|
|
|
if (!argv[argc])
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (fd_data_map);
|
|
|
free_argv (argv);
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
|
|
|
ptr = argv[argc];
|
|
|
if (!a->print_fd)
|
|
|
{
|
|
|
*(ptr++) = '-';
|
|
|
*(ptr++) = '&';
|
|
|
buflen -= 2;
|
|
|
}
|
|
|
|
|
|
_gpgme_io_fd2str (ptr, buflen, fd_data_map[datac].peer_fd);
|
|
|
argc++;
|
|
|
}
|
|
|
datac++;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
argv[argc] = strdup (a->arg);
|
|
|
if (!argv[argc])
|
|
|
{
|
|
|
int saved_errno = errno;
|
|
|
free (fd_data_map);
|
|
|
free_argv (argv);
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
}
|
|
|
argc++;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
gpg->argv = argv;
|
|
|
gpg->fd_data_map = fd_data_map;
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
add_io_cb (engine_gpg_t gpg, int fd, int dir, gpgme_io_cb_t handler, void *data,
|
|
|
void **tag)
|
|
|
{
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
err = (*gpg->io_cbs.add) (gpg->io_cbs.add_priv, fd, dir, handler, data, tag);
|
|
|
if (err)
|
|
|
return err;
|
|
|
if (!dir)
|
|
|
/* FIXME Kludge around poll() problem. */
|
|
|
err = _gpgme_io_set_nonblocking (fd);
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static int
|
|
|
status_cmp (const void *ap, const void *bp)
|
|
|
{
|
|
|
const struct status_table_s *a = ap;
|
|
|
const struct status_table_s *b = bp;
|
|
|
|
|
|
return strcmp (a->name, b->name);
|
|
|
}
|
|
|
|
|
|
|
|
|
/* Handle the status output of GnuPG. This function does read entire
|
|
|
lines and passes them as C strings to the callback function (we can
|
|
|
use C Strings because the status output is always UTF-8 encoded).
|
|
|
Of course we have to buffer the lines to cope with long lines
|
|
|
e.g. with a large user ID. Note: We can optimize this to only cope
|
|
|
with status line code we know about and skip all other stuff
|
|
|
without buffering (i.e. without extending the buffer). */
|
|
|
static gpgme_error_t
|
|
|
read_status (engine_gpg_t gpg)
|
|
|
{
|
|
|
char *p;
|
|
|
int nread;
|
|
|
size_t bufsize = gpg->status.bufsize;
|
|
|
char *buffer = gpg->status.buffer;
|
|
|
size_t readpos = gpg->status.readpos;
|
|
|
|
|
|
assert (buffer);
|
|
|
if (bufsize - readpos < 256)
|
|
|
{
|
|
|
/* Need more room for the read. */
|
|
|
bufsize += 1024;
|
|
|
buffer = realloc (buffer, bufsize);
|
|
|
if (!buffer)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
}
|
|
|
|
|
|
nread = _gpgme_io_read (gpg->status.fd[0],
|
|
|
buffer + readpos, bufsize-readpos);
|
|
|
if (nread == -1)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
|
|
|
if (!nread)
|
|
|
{
|
|
|
gpg->status.eof = 1;
|
|
|
if (gpg->status.fnc)
|
|
|
{
|
|
|
gpgme_error_t err;
|
|
|
err = gpg->status.fnc (gpg->status.fnc_value, GPGME_STATUS_EOF, "");
|
|
|
if (err)
|
|
|
return err;
|
|
|
}
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
while (nread > 0)
|
|
|
{
|
|
|
for (p = buffer + readpos; nread; nread--, p++)
|
|
|
{
|
|
|
if (*p == '\n')
|
|
|
{
|
|
|
/* (we require that the last line is terminated by a LF) */
|
|
|
if (p > buffer && p[-1] == '\r')
|
|
|
p[-1] = 0;
|
|
|
*p = 0;
|
|
|
if (!strncmp (buffer, "[GNUPG:] ", 9)
|
|
|
&& buffer[9] >= 'A' && buffer[9] <= 'Z')
|
|
|
{
|
|
|
struct status_table_s t, *r;
|
|
|
char *rest;
|
|
|
|
|
|
rest = strchr (buffer + 9, ' ');
|
|
|
if (!rest)
|
|
|
rest = p; /* Set to an empty string. */
|
|
|
else
|
|
|
*rest++ = 0;
|
|
|
|
|
|
t.name = buffer+9;
|
|
|
/* (the status table has one extra element) */
|
|
|
r = bsearch (&t, status_table, DIM(status_table) - 1,
|
|
|
sizeof t, status_cmp);
|
|
|
if (r)
|
|
|
{
|
|
|
if (gpg->cmd.used
|
|
|
&& (r->code == GPGME_STATUS_GET_BOOL
|
|
|
|| r->code == GPGME_STATUS_GET_LINE
|
|
|
|| r->code == GPGME_STATUS_GET_HIDDEN))
|
|
|
{
|
|
|
gpg->cmd.code = r->code;
|
|
|
if (gpg->cmd.keyword)
|
|
|
free (gpg->cmd.keyword);
|
|
|
gpg->cmd.keyword = strdup (rest);
|
|
|
if (!gpg->cmd.keyword)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
/* This should be the last thing we have
|
|
|
received and the next thing will be that
|
|
|
the command handler does its action. */
|
|
|
if (nread > 1)
|
|
|
DEBUG0 ("ERROR, unexpected data in read_status");
|
|
|
|
|
|
add_io_cb (gpg, gpg->cmd.fd, 0,
|
|
|
command_handler, gpg,
|
|
|
&gpg->fd_data_map[gpg->cmd.idx].tag);
|
|
|
gpg->fd_data_map[gpg->cmd.idx].fd = gpg->cmd.fd;
|
|
|
gpg->cmd.fd = -1;
|
|
|
}
|
|
|
else if (gpg->status.fnc)
|
|
|
{
|
|
|
gpgme_error_t err;
|
|
|
err = gpg->status.fnc (gpg->status.fnc_value,
|
|
|
r->code, rest);
|
|
|
if (err)
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
if (r->code == GPGME_STATUS_END_STREAM)
|
|
|
{
|
|
|
if (gpg->cmd.used)
|
|
|
{
|
|
|
/* Before we can actually add the
|
|
|
command fd, we might have to flush
|
|
|
the linked output data pipe. */
|
|
|
if (gpg->cmd.linked_idx != -1
|
|
|
&& gpg->fd_data_map[gpg->cmd.linked_idx].fd
|
|
|
!= -1)
|
|
|
{
|
|
|
struct io_select_fd_s fds;
|
|
|
fds.fd =
|
|
|
gpg->fd_data_map[gpg->cmd.linked_idx].fd;
|
|
|
fds.for_read = 1;
|
|
|
fds.for_write = 0;
|
|
|
fds.frozen = 0;
|
|
|
fds.opaque = NULL;
|
|
|
do
|
|
|
{
|
|
|
fds.signaled = 0;
|
|
|
_gpgme_io_select (&fds, 1, 1);
|
|
|
if (fds.signaled)
|
|
|
_gpgme_data_inbound_handler
|
|
|
(gpg->cmd.linked_data, fds.fd);
|
|
|
}
|
|
|
while (fds.signaled);
|
|
|
}
|
|
|
|
|
|
/* XXX We must check if there are any
|
|
|
more fds active after removing this
|
|
|
one. */
|
|
|
(*gpg->io_cbs.remove)
|
|
|
(gpg->fd_data_map[gpg->cmd.idx].tag);
|
|
|
gpg->cmd.fd = gpg->fd_data_map[gpg->cmd.idx].fd;
|
|
|
gpg->fd_data_map[gpg->cmd.idx].fd = -1;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
/* To reuse the buffer for the next line we have to
|
|
|
shift the remaining data to the buffer start and
|
|
|
restart the loop Hmmm: We can optimize this function
|
|
|
by looking forward in the buffer to see whether a
|
|
|
second complete line is available and in this case
|
|
|
avoid the memmove for this line. */
|
|
|
nread--; p++;
|
|
|
if (nread)
|
|
|
memmove (buffer, p, nread);
|
|
|
readpos = 0;
|
|
|
break; /* the for loop */
|
|
|
}
|
|
|
else
|
|
|
readpos++;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/* Update the gpg object. */
|
|
|
gpg->status.bufsize = bufsize;
|
|
|
gpg->status.buffer = buffer;
|
|
|
gpg->status.readpos = readpos;
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
status_handler (void *opaque, int fd)
|
|
|
{
|
|
|
engine_gpg_t gpg = opaque;
|
|
|
int err;
|
|
|
|
|
|
assert (fd == gpg->status.fd[0]);
|
|
|
err = read_status (gpg);
|
|
|
if (err)
|
|
|
return err;
|
|
|
if (gpg->status.eof)
|
|
|
_gpgme_io_close (fd);
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
read_colon_line (engine_gpg_t gpg)
|
|
|
{
|
|
|
char *p;
|
|
|
int nread;
|
|
|
size_t bufsize = gpg->colon.bufsize;
|
|
|
char *buffer = gpg->colon.buffer;
|
|
|
size_t readpos = gpg->colon.readpos;
|
|
|
|
|
|
assert (buffer);
|
|
|
if (bufsize - readpos < 256)
|
|
|
{
|
|
|
/* Need more room for the read. */
|
|
|
bufsize += 1024;
|
|
|
buffer = realloc (buffer, bufsize);
|
|
|
if (!buffer)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
}
|
|
|
|
|
|
nread = _gpgme_io_read (gpg->colon.fd[0], buffer+readpos, bufsize-readpos);
|
|
|
if (nread == -1)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
|
|
|
if (!nread)
|
|
|
{
|
|
|
gpg->colon.eof = 1;
|
|
|
assert (gpg->colon.fnc);
|
|
|
gpg->colon.fnc (gpg->colon.fnc_value, NULL);
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
while (nread > 0)
|
|
|
{
|
|
|
for (p = buffer + readpos; nread; nread--, p++)
|
|
|
{
|
|
|
if ( *p == '\n' )
|
|
|
{
|
|
|
/* (we require that the last line is terminated by a LF)
|
|
|
and we skip empty lines. Note: we use UTF8 encoding
|
|
|
and escaping of special characters. We require at
|
|
|
least one colon to cope with some other printed
|
|
|
information. */
|
|
|
*p = 0;
|
|
|
if (*buffer && strchr (buffer, ':'))
|
|
|
{
|
|
|
char *line = NULL;
|
|
|
|
|
|
if (gpg->colon.preprocess_fnc)
|
|
|
{
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
err = gpg->colon.preprocess_fnc (buffer, &line);
|
|
|
if (err)
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
assert (gpg->colon.fnc);
|
|
|
gpg->colon.fnc (gpg->colon.fnc_value, line ? line : buffer);
|
|
|
if (line)
|
|
|
free (line);
|
|
|
}
|
|
|
|
|
|
/* To reuse the buffer for the next line we have to
|
|
|
shift the remaining data to the buffer start and
|
|
|
restart the loop Hmmm: We can optimize this function
|
|
|
by looking forward in the buffer to see whether a
|
|
|
second complete line is available and in this case
|
|
|
avoid the memmove for this line. */
|
|
|
nread--; p++;
|
|
|
if (nread)
|
|
|
memmove (buffer, p, nread);
|
|
|
readpos = 0;
|
|
|
break; /* The for loop. */
|
|
|
}
|
|
|
else
|
|
|
readpos++;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/* Update the gpg object. */
|
|
|
gpg->colon.bufsize = bufsize;
|
|
|
gpg->colon.buffer = buffer;
|
|
|
gpg->colon.readpos = readpos;
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
/* This colonline handler thing is not the clean way to do it. It
|
|
|
might be better to enhance the gpgme_data_t object to act as a wrapper
|
|
|
for a callback. Same goes for the status thing. For now we use
|
|
|
this thing here because it is easier to implement. */
|
|
|
static gpgme_error_t
|
|
|
colon_line_handler (void *opaque, int fd)
|
|
|
{
|
|
|
engine_gpg_t gpg = opaque;
|
|
|
gpgme_error_t rc = 0;
|
|
|
|
|
|
assert (fd == gpg->colon.fd[0]);
|
|
|
rc = read_colon_line (gpg);
|
|
|
if (rc)
|
|
|
return rc;
|
|
|
if (gpg->colon.eof)
|
|
|
_gpgme_io_close (fd);
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
start (engine_gpg_t gpg)
|
|
|
{
|
|
|
gpgme_error_t rc;
|
|
|
int saved_errno;
|
|
|
int i, n;
|
|
|
int status;
|
|
|
struct spawn_fd_item_s *fd_child_list, *fd_parent_list;
|
|
|
|
|
|
if (!gpg)
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
if (!gpg->file_name && !_gpgme_get_gpg_path ())
|
|
|
return gpg_error (GPG_ERR_INV_ENGINE);
|
|
|
|
|
|
if (gpg->lc_ctype)
|
|
|
{
|
|
|
rc = add_arg_ext (gpg, gpg->lc_ctype, 1);
|
|
|
if (!rc)
|
|
|
rc = add_arg_ext (gpg, "--lc-ctype", 1);
|
|
|
if (rc)
|
|
|
return rc;
|
|
|
}
|
|
|
|
|
|
if (gpg->lc_messages)
|
|
|
{
|
|
|
rc = add_arg_ext (gpg, gpg->lc_messages, 1);
|
|
|
if (!rc)
|
|
|
rc = add_arg_ext (gpg, "--lc-messages", 1);
|
|
|
if (rc)
|
|
|
return rc;
|
|
|
}
|
|
|
|
|
|
rc = build_argv (gpg);
|
|
|
if (rc)
|
|
|
return rc;
|
|
|
|
|
|
n = 3; /* status_fd, colon_fd and end of list */
|
|
|
for (i = 0; gpg->fd_data_map[i].data; i++)
|
|
|
n++;
|
|
|
fd_child_list = calloc (n + n, sizeof *fd_child_list);
|
|
|
if (!fd_child_list)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
fd_parent_list = fd_child_list + n;
|
|
|
|
|
|
/* build the fd list for the child */
|
|
|
n = 0;
|
|
|
if (gpg->colon.fnc)
|
|
|
{
|
|
|
fd_child_list[n].fd = gpg->colon.fd[1];
|
|
|
fd_child_list[n].dup_to = 1; /* dup to stdout */
|
|
|
n++;
|
|
|
}
|
|
|
for (i = 0; gpg->fd_data_map[i].data; i++)
|
|
|
{
|
|
|
if (gpg->fd_data_map[i].dup_to != -1)
|
|
|
{
|
|
|
fd_child_list[n].fd = gpg->fd_data_map[i].peer_fd;
|
|
|
fd_child_list[n].dup_to = gpg->fd_data_map[i].dup_to;
|
|
|
n++;
|
|
|
}
|
|
|
}
|
|
|
fd_child_list[n].fd = -1;
|
|
|
fd_child_list[n].dup_to = -1;
|
|
|
|
|
|
/* Build the fd list for the parent. */
|
|
|
n = 0;
|
|
|
if (gpg->status.fd[1] != -1)
|
|
|
{
|
|
|
fd_parent_list[n].fd = gpg->status.fd[1];
|
|
|
fd_parent_list[n].dup_to = -1;
|
|
|
n++;
|
|
|
}
|
|
|
if (gpg->colon.fd[1] != -1)
|
|
|
{
|
|
|
fd_parent_list[n].fd = gpg->colon.fd[1];
|
|
|
fd_parent_list[n].dup_to = -1;
|
|
|
n++;
|
|
|
}
|
|
|
for (i = 0; gpg->fd_data_map[i].data; i++)
|
|
|
{
|
|
|
fd_parent_list[n].fd = gpg->fd_data_map[i].peer_fd;
|
|
|
fd_parent_list[n].dup_to = -1;
|
|
|
n++;
|
|
|
}
|
|
|
fd_parent_list[n].fd = -1;
|
|
|
fd_parent_list[n].dup_to = -1;
|
|
|
|
|
|
status = _gpgme_io_spawn (gpg->file_name ? gpg->file_name :
|
|
|
_gpgme_get_gpg_path (),
|
|
|
gpg->argv, fd_child_list, fd_parent_list);
|
|
|
saved_errno = errno;
|
|
|
free (fd_child_list);
|
|
|
if (status == -1)
|
|
|
return gpg_error_from_errno (saved_errno);
|
|
|
|
|
|
/*_gpgme_register_term_handler ( closure, closure_value, pid );*/
|
|
|
|
|
|
rc = add_io_cb (gpg, gpg->status.fd[0], 1, status_handler, gpg,
|
|
|
&gpg->status.tag);
|
|
|
if (rc)
|
|
|
/* FIXME: kill the child */
|
|
|
return rc;
|
|
|
|
|
|
if (gpg->colon.fnc)
|
|
|
{
|
|
|
assert (gpg->colon.fd[0] != -1);
|
|
|
rc = add_io_cb (gpg, gpg->colon.fd[0], 1, colon_line_handler, gpg,
|
|
|
&gpg->colon.tag);
|
|
|
if (rc)
|
|
|
/* FIXME: kill the child */
|
|
|
return rc;
|
|
|
}
|
|
|
|
|
|
for (i = 0; gpg->fd_data_map[i].data; i++)
|
|
|
{
|
|
|
if (gpg->cmd.used && i == gpg->cmd.idx)
|
|
|
{
|
|
|
/* Park the cmd fd. */
|
|
|
gpg->cmd.fd = gpg->fd_data_map[i].fd;
|
|
|
gpg->fd_data_map[i].fd = -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
rc = add_io_cb (gpg, gpg->fd_data_map[i].fd,
|
|
|
gpg->fd_data_map[i].inbound,
|
|
|
gpg->fd_data_map[i].inbound
|
|
|
? _gpgme_data_inbound_handler
|
|
|
: _gpgme_data_outbound_handler,
|
|
|
gpg->fd_data_map[i].data, &gpg->fd_data_map[i].tag);
|
|
|
|
|
|
if (rc)
|
|
|
/* FIXME: kill the child */
|
|
|
return rc;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
(*gpg->io_cbs.event) (gpg->io_cbs.event_priv, GPGME_EVENT_START, NULL);
|
|
|
|
|
|
/* fixme: check what data we can release here */
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_decrypt (void *engine, gpgme_data_t ciph, gpgme_data_t plain)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
err = add_arg (gpg, "--decrypt");
|
|
|
|
|
|
/* Tell the gpg object about the data. */
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--output");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "-");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, plain, 1, 1);
|
|
|
if (!err)
|
|
|
err = add_data (gpg, ciph, 0, 0);
|
|
|
|
|
|
if (!err)
|
|
|
start (gpg);
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_delete (void *engine, gpgme_key_t key, int allow_secret)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
err = add_arg (gpg, allow_secret ? "--delete-secret-and-public-key"
|
|
|
: "--delete-key");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
if (!err)
|
|
|
{
|
|
|
if (!key->subkeys || !key->subkeys->fpr)
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
else
|
|
|
err = add_arg (gpg, key->subkeys->fpr);
|
|
|
}
|
|
|
|
|
|
if (!err)
|
|
|
start (gpg);
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
append_args_from_signers (engine_gpg_t gpg, gpgme_ctx_t ctx /* FIXME */)
|
|
|
{
|
|
|
gpgme_error_t err = 0;
|
|
|
int i;
|
|
|
gpgme_key_t key;
|
|
|
|
|
|
for (i = 0; (key = gpgme_signers_enum (ctx, i)); i++)
|
|
|
{
|
|
|
const char *s = key->subkeys ? key->subkeys->keyid : NULL;
|
|
|
if (s)
|
|
|
{
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "-u");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, s);
|
|
|
}
|
|
|
gpgme_key_unref (key);
|
|
|
if (err) break;
|
|
|
}
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
append_args_from_sig_notations (engine_gpg_t gpg, gpgme_ctx_t ctx /* FIXME */)
|
|
|
{
|
|
|
gpgme_error_t err = 0;
|
|
|
gpgme_sig_notation_t notation;
|
|
|
|
|
|
notation = gpgme_sig_notation_get (ctx);
|
|
|
|
|
|
while (!err && notation)
|
|
|
{
|
|
|
if (notation->name
|
|
|
&& !(notation->flags & GPGME_SIG_NOTATION_HUMAN_READABLE))
|
|
|
err = gpg_error (GPG_ERR_INV_VALUE);
|
|
|
else if (notation->name)
|
|
|
{
|
|
|
char *arg;
|
|
|
|
|
|
/* Maximum space needed is one byte for the "critical" flag,
|
|
|
the name, one byte for '=', the value, and a terminating
|
|
|
'\0'. */
|
|
|
|
|
|
arg = malloc (1 + notation->name_len + 1 + notation->value_len + 1);
|
|
|
if (!arg)
|
|
|
err = gpg_error_from_errno (errno);
|
|
|
|
|
|
if (!err)
|
|
|
{
|
|
|
char *argp = arg;
|
|
|
|
|
|
if (notation->critical)
|
|
|
*(argp++) = '!';
|
|
|
|
|
|
memcpy (argp, notation->name, notation->name_len);
|
|
|
argp += notation->name_len;
|
|
|
|
|
|
*(argp++) = '=';
|
|
|
|
|
|
/* We know that notation->name is '\0' terminated. */
|
|
|
strcpy (argp, notation->value);
|
|
|
}
|
|
|
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--sig-notation");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, arg);
|
|
|
|
|
|
if (arg)
|
|
|
free (arg);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
/* This is a policy URL. */
|
|
|
|
|
|
char *value;
|
|
|
|
|
|
if (notation->critical)
|
|
|
{
|
|
|
value = malloc (1 + notation->value_len + 1);
|
|
|
if (!value)
|
|
|
err = gpg_error_from_errno (errno);
|
|
|
else
|
|
|
{
|
|
|
value[0] = '!';
|
|
|
/* We know that notation->value is '\0' terminated. */
|
|
|
strcpy (&value[1], notation->value);
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
value = notation->value;
|
|
|
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--sig-policy-url");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, value);
|
|
|
|
|
|
if (value != notation->value)
|
|
|
free (value);
|
|
|
}
|
|
|
|
|
|
notation = notation->next;
|
|
|
}
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_edit (void *engine, int type, gpgme_key_t key, gpgme_data_t out,
|
|
|
gpgme_ctx_t ctx /* FIXME */)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
err = add_arg (gpg, "--with-colons");
|
|
|
if (!err)
|
|
|
err = append_args_from_signers (gpg, ctx);
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, type == 0 ? "--edit-key" : "--card-edit");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, out, 1, 1);
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
if (!err && type == 0)
|
|
|
{
|
|
|
const char *s = key->subkeys ? key->subkeys->fpr : NULL;
|
|
|
if (!s)
|
|
|
err = gpg_error (GPG_ERR_INV_VALUE);
|
|
|
else
|
|
|
err = add_arg (gpg, s);
|
|
|
}
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
append_args_from_recipients (engine_gpg_t gpg, gpgme_key_t recp[])
|
|
|
{
|
|
|
gpgme_error_t err = 0;
|
|
|
int i = 0;
|
|
|
|
|
|
while (recp[i])
|
|
|
{
|
|
|
if (!recp[i]->subkeys || !recp[i]->subkeys->fpr)
|
|
|
err = gpg_error (GPG_ERR_INV_VALUE);
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "-r");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, recp[i]->subkeys->fpr);
|
|
|
if (err)
|
|
|
break;
|
|
|
i++;
|
|
|
}
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_encrypt (void *engine, gpgme_key_t recp[], gpgme_encrypt_flags_t flags,
|
|
|
gpgme_data_t plain, gpgme_data_t ciph, int use_armor)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
int symmetric = !recp;
|
|
|
|
|
|
err = add_arg (gpg, symmetric ? "--symmetric" : "--encrypt");
|
|
|
|
|
|
if (!err && use_armor)
|
|
|
err = add_arg (gpg, "--armor");
|
|
|
|
|
|
if (!symmetric)
|
|
|
{
|
|
|
/* If we know that all recipients are valid (full or ultimate trust)
|
|
|
we can suppress further checks. */
|
|
|
if (!err && !symmetric && (flags & GPGME_ENCRYPT_ALWAYS_TRUST))
|
|
|
err = add_arg (gpg, "--always-trust");
|
|
|
|
|
|
if (!err)
|
|
|
err = append_args_from_recipients (gpg, recp);
|
|
|
}
|
|
|
|
|
|
/* Tell the gpg object about the data. */
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--output");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "-");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, ciph, 1, 1);
|
|
|
if (gpgme_data_get_file_name (plain))
|
|
|
{
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--set-filename");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, gpgme_data_get_file_name (plain));
|
|
|
}
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, plain, 0, 0);
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_encrypt_sign (void *engine, gpgme_key_t recp[],
|
|
|
gpgme_encrypt_flags_t flags, gpgme_data_t plain,
|
|
|
gpgme_data_t ciph, int use_armor,
|
|
|
gpgme_ctx_t ctx /* FIXME */)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
err = add_arg (gpg, "--encrypt");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--sign");
|
|
|
if (!err && use_armor)
|
|
|
err = add_arg (gpg, "--armor");
|
|
|
|
|
|
/* If we know that all recipients are valid (full or ultimate trust)
|
|
|
we can suppress further checks. */
|
|
|
if (!err && (flags & GPGME_ENCRYPT_ALWAYS_TRUST))
|
|
|
err = add_arg (gpg, "--always-trust");
|
|
|
|
|
|
if (!err)
|
|
|
err = append_args_from_recipients (gpg, recp);
|
|
|
|
|
|
if (!err)
|
|
|
err = append_args_from_signers (gpg, ctx);
|
|
|
if (!err)
|
|
|
err = append_args_from_sig_notations (gpg, ctx);
|
|
|
|
|
|
/* Tell the gpg object about the data. */
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--output");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "-");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, ciph, 1, 1);
|
|
|
if (gpgme_data_get_file_name (plain))
|
|
|
{
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--set-filename");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, gpgme_data_get_file_name (plain));
|
|
|
}
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, plain, 0, 0);
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_export (void *engine, const char *pattern, unsigned int reserved,
|
|
|
gpgme_data_t keydata, int use_armor)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
if (reserved)
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
err = add_arg (gpg, "--export");
|
|
|
if (!err && use_armor)
|
|
|
err = add_arg (gpg, "--armor");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, keydata, 1, 1);
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
|
|
|
if (!err && pattern && *pattern)
|
|
|
err = add_arg (gpg, pattern);
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_export_ext (void *engine, const char *pattern[], unsigned int reserved,
|
|
|
gpgme_data_t keydata, int use_armor)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
if (reserved)
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
err = add_arg (gpg, "--export");
|
|
|
if (!err && use_armor)
|
|
|
err = add_arg (gpg, "--armor");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, keydata, 1, 1);
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
|
|
|
if (pattern)
|
|
|
{
|
|
|
while (!err && *pattern && **pattern)
|
|
|
err = add_arg (gpg, *(pattern++));
|
|
|
}
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_genkey (void *engine, gpgme_data_t help_data, int use_armor,
|
|
|
gpgme_data_t pubkey, gpgme_data_t seckey)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
if (!gpg)
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
/* We need a special mechanism to get the fd of a pipe here, so that
|
|
|
we can use this for the %pubring and %secring parameters. We
|
|
|
don't have this yet, so we implement only the adding to the
|
|
|
standard keyrings. */
|
|
|
if (pubkey || seckey)
|
|
|
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
|
|
|
|
|
|
err = add_arg (gpg, "--gen-key");
|
|
|
if (!err && use_armor)
|
|
|
err = add_arg (gpg, "--armor");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, help_data, 0, 0);
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_import (void *engine, gpgme_data_t keydata)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
err = add_arg (gpg, "--import");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, keydata, 0, 0);
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
/* The output for external keylistings in GnuPG is different from all
|
|
|
the other key listings. We catch this here with a special
|
|
|
preprocessor that reformats the colon handler lines. */
|
|
|
static gpgme_error_t
|
|
|
gpg_keylist_preprocess (char *line, char **r_line)
|
|
|
{
|
|
|
enum
|
|
|
{
|
|
|
RT_NONE, RT_INFO, RT_PUB, RT_UID
|
|
|
}
|
|
|
rectype = RT_NONE;
|
|
|
#define NR_FIELDS 16
|
|
|
char *field[NR_FIELDS];
|
|
|
int fields = 0;
|
|
|
|
|
|
*r_line = NULL;
|
|
|
|
|
|
while (line && fields < NR_FIELDS)
|
|
|
{
|
|
|
field[fields++] = line;
|
|
|
line = strchr (line, ':');
|
|
|
if (line)
|
|
|
*(line++) = '\0';
|
|
|
}
|
|
|
|
|
|
if (!strcmp (field[0], "info"))
|
|
|
rectype = RT_INFO;
|
|
|
else if (!strcmp (field[0], "pub"))
|
|
|
rectype = RT_PUB;
|
|
|
else if (!strcmp (field[0], "uid"))
|
|
|
rectype = RT_UID;
|
|
|
else
|
|
|
rectype = RT_NONE;
|
|
|
|
|
|
switch (rectype)
|
|
|
{
|
|
|
case RT_INFO:
|
|
|
/* FIXME: Eventually, check the version number at least. */
|
|
|
return 0;
|
|
|
|
|
|
case RT_PUB:
|
|
|
if (fields < 7)
|
|
|
return 0;
|
|
|
|
|
|
/* The format is:
|
|
|
|
|
|
pub:<keyid>:<algo>:<keylen>:<creationdate>:<expirationdate>:<flags>
|
|
|
|
|
|
as defined in 5.2. Machine Readable Indexes of the OpenPGP
|
|
|
HTTP Keyserver Protocol (draft).
|
|
|
|
|
|
We want:
|
|
|
pub:o<flags>:<keylen>:<algo>:<keyid>:<creatdate>:<expdate>::::::::
|
|
|
*/
|
|
|
|
|
|
if (asprintf (r_line, "pub:o%s:%s:%s:%s:%s:%s::::::::",
|
|
|
field[6], field[3], field[2], field[1],
|
|
|
field[4], field[5]) < 0)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
return 0;
|
|
|
|
|
|
case RT_UID:
|
|
|
/* The format is:
|
|
|
|
|
|
uid:<escaped uid string>:<creationdate>:<expirationdate>:<flags>
|
|
|
|
|
|
as defined in 5.2. Machine Readable Indexes of the OpenPGP
|
|
|
HTTP Keyserver Protocol (draft).
|
|
|
|
|
|
We want:
|
|
|
uid:o<flags>::::<creatdate>:<expdate>:::<uid>:
|
|
|
*/
|
|
|
|
|
|
if (asprintf (r_line, "uid:o%s::::%s:%s:::%s:",
|
|
|
field[4], field[2], field[3], field[1]) < 0)
|
|
|
return gpg_error_from_errno (errno);
|
|
|
return 0;
|
|
|
|
|
|
case RT_NONE:
|
|
|
/* Unknown record. */
|
|
|
break;
|
|
|
}
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_keylist (void *engine, const char *pattern, int secret_only,
|
|
|
gpgme_keylist_mode_t mode)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
if (mode & GPGME_KEYLIST_MODE_EXTERN)
|
|
|
{
|
|
|
if ((mode & GPGME_KEYLIST_MODE_LOCAL)
|
|
|
|| secret_only)
|
|
|
return gpg_error (GPG_ERR_NOT_SUPPORTED);
|
|
|
}
|
|
|
|
|
|
err = add_arg (gpg, "--with-colons");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--fixed-list-mode");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--with-fingerprint");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--with-fingerprint");
|
|
|
if (!err && (mode & GPGME_KEYLIST_MODE_SIGS)
|
|
|
&& (mode & GPGME_KEYLIST_MODE_SIG_NOTATIONS))
|
|
|
{
|
|
|
err = add_arg (gpg, "--list-options");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "show-sig-subpackets=\"20,26\"");
|
|
|
}
|
|
|
if (!err)
|
|
|
{
|
|
|
if (mode & GPGME_KEYLIST_MODE_EXTERN)
|
|
|
{
|
|
|
err = add_arg (gpg, "--search-keys");
|
|
|
gpg->colon.preprocess_fnc = gpg_keylist_preprocess;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
err = add_arg (gpg, secret_only ? "--list-secret-keys"
|
|
|
: ((mode & GPGME_KEYLIST_MODE_SIGS)
|
|
|
? "--check-sigs" : "--list-keys"));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/* Tell the gpg object about the data. */
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
if (!err && pattern && *pattern)
|
|
|
err = add_arg (gpg, pattern);
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_keylist_ext (void *engine, const char *pattern[], int secret_only,
|
|
|
int reserved, gpgme_keylist_mode_t mode)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
if (reserved)
|
|
|
return gpg_error (GPG_ERR_INV_VALUE);
|
|
|
|
|
|
err = add_arg (gpg, "--with-colons");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--fixed-list-mode");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--with-fingerprint");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--with-fingerprint");
|
|
|
if (!err && (mode & GPGME_KEYLIST_MODE_SIGS)
|
|
|
&& (mode & GPGME_KEYLIST_MODE_SIG_NOTATIONS))
|
|
|
{
|
|
|
err = add_arg (gpg, "--list-options");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "show-sig-subpackets=\"20,26\"");
|
|
|
}
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, secret_only ? "--list-secret-keys"
|
|
|
: ((mode & GPGME_KEYLIST_MODE_SIGS)
|
|
|
? "--check-sigs" : "--list-keys"));
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
|
|
|
if (pattern)
|
|
|
{
|
|
|
while (!err && *pattern && **pattern)
|
|
|
err = add_arg (gpg, *(pattern++));
|
|
|
}
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_sign (void *engine, gpgme_data_t in, gpgme_data_t out,
|
|
|
gpgme_sig_mode_t mode, int use_armor, int use_textmode,
|
|
|
int include_certs, gpgme_ctx_t ctx /* FIXME */)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
if (mode == GPGME_SIG_MODE_CLEAR)
|
|
|
err = add_arg (gpg, "--clearsign");
|
|
|
else
|
|
|
{
|
|
|
err = add_arg (gpg, "--sign");
|
|
|
if (!err && mode == GPGME_SIG_MODE_DETACH)
|
|
|
err = add_arg (gpg, "--detach");
|
|
|
if (!err && use_armor)
|
|
|
err = add_arg (gpg, "--armor");
|
|
|
if (!err && use_textmode)
|
|
|
err = add_arg (gpg, "--textmode");
|
|
|
}
|
|
|
|
|
|
if (!err)
|
|
|
err = append_args_from_signers (gpg, ctx);
|
|
|
if (!err)
|
|
|
err = append_args_from_sig_notations (gpg, ctx);
|
|
|
|
|
|
if (gpgme_data_get_file_name (in))
|
|
|
{
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--set-filename");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, gpgme_data_get_file_name (in));
|
|
|
}
|
|
|
|
|
|
/* Tell the gpg object about the data. */
|
|
|
if (!err)
|
|
|
err = add_data (gpg, in, 0, 0);
|
|
|
if (!err)
|
|
|
err = add_data (gpg, out, 1, 1);
|
|
|
|
|
|
if (!err)
|
|
|
start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_trustlist (void *engine, const char *pattern)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err;
|
|
|
|
|
|
err = add_arg (gpg, "--with-colons");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--list-trust-path");
|
|
|
|
|
|
/* Tell the gpg object about the data. */
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, pattern);
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static gpgme_error_t
|
|
|
gpg_verify (void *engine, gpgme_data_t sig, gpgme_data_t signed_text,
|
|
|
gpgme_data_t plaintext)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
gpgme_error_t err = 0;
|
|
|
|
|
|
if (plaintext)
|
|
|
{
|
|
|
/* Normal or cleartext signature. */
|
|
|
|
|
|
err = add_arg (gpg, "--output");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "-");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, sig, 0, 0);
|
|
|
if (!err)
|
|
|
err = add_data (gpg, plaintext, 1, 1);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
err = add_arg (gpg, "--verify");
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "--");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, sig, -1, 0);
|
|
|
if (signed_text)
|
|
|
{
|
|
|
if (!err)
|
|
|
err = add_arg (gpg, "-");
|
|
|
if (!err)
|
|
|
err = add_data (gpg, signed_text, 0, 0);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (!err)
|
|
|
err = start (gpg);
|
|
|
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
|
|
|
static void
|
|
|
gpg_set_io_cbs (void *engine, gpgme_io_cbs_t io_cbs)
|
|
|
{
|
|
|
engine_gpg_t gpg = engine;
|
|
|
|
|
|
gpg->io_cbs = *io_cbs;
|
|
|
}
|
|
|
|
|
|
|
|
|
struct engine_ops _gpgme_engine_ops_gpg =
|
|
|
{
|
|
|
/* Static functions. */
|
|
|
_gpgme_get_gpg_path,
|
|
|
gpg_get_version,
|
|
|
gpg_get_req_version,
|
|
|
gpg_new,
|
|
|
|
|
|
/* Member functions. */
|
|
|
gpg_release,
|
|
|
NULL, /* reset */
|
|
|
gpg_set_status_handler,
|
|
|
gpg_set_command_handler,
|
|
|
gpg_set_colon_line_handler,
|
|
|
gpg_set_locale,
|
|
|
gpg_decrypt,
|
|
|
gpg_delete,
|
|
|
gpg_edit,
|
|
|
gpg_encrypt,
|
|
|
gpg_encrypt_sign,
|
|
|
gpg_export,
|
|
|
gpg_export_ext,
|
|
|
gpg_genkey,
|
|
|
gpg_import,
|
|
|
gpg_keylist,
|
|
|
gpg_keylist_ext,
|
|
|
gpg_sign,
|
|
|
gpg_trustlist,
|
|
|
gpg_verify,
|
|
|
gpg_set_io_cbs,
|
|
|
gpg_io_event,
|
|
|
gpg_cancel
|
|
|
};
|
