bd24feaa86
* src/debug.h: Include "gpgme.h" (_gpgme_trace_gpgme_error): New. (trace_gpg_error): New macro. Use it in all files where we return GPG_ERR_INV_ENGINE; also "include debug.h" as needed. -- This is a pretty common error code but often it is hard to figure out the actual cause. With debug level 4 we now print the file name and line number where this error code is generated by gpgme. Along with the git revision printed in the first log lines, this should give us an easier way to track down the problems related to this error code.
930 lines
20 KiB
C
930 lines
20 KiB
C
/* engine-gpgconf.c - gpg-conf engine.
|
||
Copyright (C) 2000 Werner Koch (dd9jn)
|
||
Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007, 2008 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, see <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
#if HAVE_CONFIG_H
|
||
#include <config.h>
|
||
#endif
|
||
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#ifdef HAVE_SYS_TYPES_H
|
||
# include <sys/types.h>
|
||
#endif
|
||
#include <assert.h>
|
||
#ifdef HAVE_UNISTD_H
|
||
# include <unistd.h>
|
||
#endif
|
||
#include <fcntl.h> /* FIXME */
|
||
#include <errno.h>
|
||
|
||
#include "gpgme.h"
|
||
#include "util.h"
|
||
#include "ops.h"
|
||
#include "wait.h"
|
||
#include "priv-io.h"
|
||
#include "sema.h"
|
||
|
||
#include "assuan.h"
|
||
#include "debug.h"
|
||
|
||
#include "engine-backend.h"
|
||
|
||
|
||
struct engine_gpgconf
|
||
{
|
||
char *file_name;
|
||
char *home_dir;
|
||
};
|
||
|
||
typedef struct engine_gpgconf *engine_gpgconf_t;
|
||
|
||
|
||
static char *
|
||
gpgconf_get_version (const char *file_name)
|
||
{
|
||
return _gpgme_get_program_version (file_name ? file_name
|
||
: _gpgme_get_gpgconf_path ());
|
||
}
|
||
|
||
|
||
static const char *
|
||
gpgconf_get_req_version (void)
|
||
{
|
||
return NEED_GPGCONF_VERSION;
|
||
}
|
||
|
||
|
||
static void
|
||
gpgconf_release (void *engine)
|
||
{
|
||
engine_gpgconf_t gpgconf = engine;
|
||
|
||
if (!gpgconf)
|
||
return;
|
||
|
||
if (gpgconf->file_name)
|
||
free (gpgconf->file_name);
|
||
if (gpgconf->home_dir)
|
||
free (gpgconf->home_dir);
|
||
|
||
free (gpgconf);
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgconf_new (void **engine, const char *file_name, const char *home_dir)
|
||
{
|
||
gpgme_error_t err = 0;
|
||
engine_gpgconf_t gpgconf;
|
||
|
||
gpgconf = calloc (1, sizeof *gpgconf);
|
||
if (!gpgconf)
|
||
return gpg_error_from_errno (errno);
|
||
|
||
gpgconf->file_name = strdup (file_name ? file_name
|
||
: _gpgme_get_gpgconf_path ());
|
||
if (!gpgconf->file_name)
|
||
err = gpg_error_from_syserror ();
|
||
|
||
if (!err && home_dir)
|
||
{
|
||
gpgconf->home_dir = strdup (home_dir);
|
||
if (!gpgconf->home_dir)
|
||
err = gpg_error_from_syserror ();
|
||
}
|
||
|
||
if (err)
|
||
gpgconf_release (gpgconf);
|
||
else
|
||
*engine = gpgconf;
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
static void
|
||
release_arg (gpgme_conf_arg_t arg, gpgme_conf_type_t alt_type)
|
||
{
|
||
while (arg)
|
||
{
|
||
gpgme_conf_arg_t next = arg->next;
|
||
|
||
if (alt_type == GPGME_CONF_STRING)
|
||
free (arg->value.string);
|
||
free (arg);
|
||
arg = next;
|
||
}
|
||
}
|
||
|
||
|
||
static void
|
||
release_opt (gpgme_conf_opt_t opt)
|
||
{
|
||
if (opt->name)
|
||
free (opt->name);
|
||
if (opt->description)
|
||
free (opt->description);
|
||
if (opt->argname)
|
||
free (opt->argname);
|
||
|
||
release_arg (opt->default_value, opt->alt_type);
|
||
if (opt->default_description)
|
||
free (opt->default_description);
|
||
|
||
release_arg (opt->no_arg_value, opt->alt_type);
|
||
release_arg (opt->value, opt->alt_type);
|
||
release_arg (opt->new_value, opt->alt_type);
|
||
|
||
free (opt);
|
||
}
|
||
|
||
|
||
static void
|
||
release_comp (gpgme_conf_comp_t comp)
|
||
{
|
||
gpgme_conf_opt_t opt;
|
||
|
||
if (comp->name)
|
||
free (comp->name);
|
||
if (comp->description)
|
||
free (comp->description);
|
||
if (comp->program_name)
|
||
free (comp->program_name);
|
||
|
||
opt = comp->options;
|
||
while (opt)
|
||
{
|
||
gpgme_conf_opt_t next = opt->next;
|
||
release_opt (opt);
|
||
opt = next;
|
||
}
|
||
|
||
free (comp);
|
||
}
|
||
|
||
|
||
static void
|
||
gpgconf_config_release (gpgme_conf_comp_t conf)
|
||
{
|
||
while (conf)
|
||
{
|
||
gpgme_conf_comp_t next = conf->next;
|
||
release_comp (conf);
|
||
conf = next;
|
||
}
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgconf_read (void *engine, char *arg1, char *arg2,
|
||
gpgme_error_t (*cb) (void *hook, char *line),
|
||
void *hook)
|
||
{
|
||
struct engine_gpgconf *gpgconf = engine;
|
||
gpgme_error_t err = 0;
|
||
#define LINELENGTH 1024
|
||
char linebuf[LINELENGTH] = "";
|
||
int linelen = 0;
|
||
char *argv[4] = { NULL /* file_name */, NULL, NULL, NULL };
|
||
int rp[2];
|
||
struct spawn_fd_item_s cfd[] = { {-1, 1 /* STDOUT_FILENO */, -1, 0},
|
||
{-1, -1} };
|
||
int status;
|
||
int nread;
|
||
char *mark = NULL;
|
||
|
||
argv[1] = arg1;
|
||
argv[2] = arg2;
|
||
|
||
|
||
/* FIXME: Deal with engine->home_dir. */
|
||
|
||
/* _gpgme_engine_new guarantees that this is not NULL. */
|
||
argv[0] = gpgconf->file_name;
|
||
|
||
if (_gpgme_io_pipe (rp, 1) < 0)
|
||
return gpg_error_from_syserror ();
|
||
|
||
cfd[0].fd = rp[1];
|
||
|
||
status = _gpgme_io_spawn (gpgconf->file_name, argv, 0, cfd, NULL, NULL, NULL);
|
||
if (status < 0)
|
||
{
|
||
_gpgme_io_close (rp[0]);
|
||
_gpgme_io_close (rp[1]);
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
|
||
do
|
||
{
|
||
nread = _gpgme_io_read (rp[0],
|
||
linebuf + linelen, LINELENGTH - linelen - 1);
|
||
if (nread > 0)
|
||
{
|
||
char *line;
|
||
const char *lastmark = NULL;
|
||
size_t nused;
|
||
|
||
linelen += nread;
|
||
linebuf[linelen] = '\0';
|
||
|
||
for (line=linebuf; (mark = strchr (line, '\n')); line = mark+1 )
|
||
{
|
||
lastmark = mark;
|
||
if (mark > line && mark[-1] == '\r')
|
||
mark[-1] = '\0';
|
||
else
|
||
mark[0] = '\0';
|
||
|
||
/* Got a full line. Due to the CR removal code (which
|
||
occurs only on Windows) we might be one-off and thus
|
||
would see empty lines. Don't pass them to the
|
||
callback. */
|
||
err = *line? (*cb) (hook, line) : 0;
|
||
if (err)
|
||
goto leave;
|
||
}
|
||
|
||
nused = lastmark? (lastmark + 1 - linebuf) : 0;
|
||
memmove (linebuf, linebuf + nused, linelen - nused);
|
||
linelen -= nused;
|
||
}
|
||
}
|
||
while (nread > 0 && linelen < LINELENGTH - 1);
|
||
|
||
if (!err && nread < 0)
|
||
err = gpg_error_from_syserror ();
|
||
if (!err && nread > 0)
|
||
err = gpg_error (GPG_ERR_LINE_TOO_LONG);
|
||
|
||
leave:
|
||
_gpgme_io_close (rp[0]);
|
||
|
||
return err;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgconf_config_load_cb (void *hook, char *line)
|
||
{
|
||
gpgme_conf_comp_t *comp_p = hook;
|
||
gpgme_conf_comp_t comp = *comp_p;
|
||
#define NR_FIELDS 16
|
||
char *field[NR_FIELDS];
|
||
int fields = 0;
|
||
|
||
while (line && fields < NR_FIELDS)
|
||
{
|
||
field[fields++] = line;
|
||
line = strchr (line, ':');
|
||
if (line)
|
||
*(line++) = '\0';
|
||
}
|
||
|
||
/* We require at least the first 3 fields. */
|
||
if (fields < 2)
|
||
return trace_gpg_error (GPG_ERR_INV_ENGINE);
|
||
|
||
/* Find the pointer to the new component in the list. */
|
||
while (comp && comp->next)
|
||
comp = comp->next;
|
||
if (comp)
|
||
comp_p = &comp->next;
|
||
|
||
comp = calloc (1, sizeof (*comp));
|
||
if (!comp)
|
||
return gpg_error_from_syserror ();
|
||
/* Prepare return value. */
|
||
comp->_last_opt_p = &comp->options;
|
||
*comp_p = comp;
|
||
|
||
comp->name = strdup (field[0]);
|
||
if (!comp->name)
|
||
return gpg_error_from_syserror ();
|
||
|
||
comp->description = strdup (field[1]);
|
||
if (!comp->description)
|
||
return gpg_error_from_syserror ();
|
||
|
||
if (fields >= 3)
|
||
{
|
||
comp->program_name = strdup (field[2]);
|
||
if (!comp->program_name)
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgconf_parse_option (gpgme_conf_opt_t opt,
|
||
gpgme_conf_arg_t *arg_p, char *line)
|
||
{
|
||
gpgme_error_t err;
|
||
char *mark;
|
||
|
||
if (!line[0])
|
||
return 0;
|
||
|
||
while (line)
|
||
{
|
||
gpgme_conf_arg_t arg;
|
||
|
||
mark = strchr (line, ',');
|
||
if (mark)
|
||
*mark = '\0';
|
||
|
||
arg = calloc (1, sizeof (*arg));
|
||
if (!arg)
|
||
return gpg_error_from_syserror ();
|
||
*arg_p = arg;
|
||
arg_p = &arg->next;
|
||
|
||
if (*line == '\0')
|
||
arg->no_arg = 1;
|
||
else
|
||
{
|
||
switch (opt->alt_type)
|
||
{
|
||
/* arg->value.count is an alias for arg->value.uint32. */
|
||
case GPGME_CONF_NONE:
|
||
case GPGME_CONF_UINT32:
|
||
arg->value.uint32 = strtoul (line, NULL, 0);
|
||
break;
|
||
|
||
case GPGME_CONF_INT32:
|
||
arg->value.uint32 = strtol (line, NULL, 0);
|
||
break;
|
||
|
||
case GPGME_CONF_STRING:
|
||
/* The complex types below are only here to silent the
|
||
compiler warning. */
|
||
case GPGME_CONF_FILENAME:
|
||
case GPGME_CONF_LDAP_SERVER:
|
||
case GPGME_CONF_KEY_FPR:
|
||
case GPGME_CONF_PUB_KEY:
|
||
case GPGME_CONF_SEC_KEY:
|
||
case GPGME_CONF_ALIAS_LIST:
|
||
/* Skip quote character. */
|
||
line++;
|
||
|
||
err = _gpgme_decode_percent_string (line, &arg->value.string,
|
||
0, 0);
|
||
if (err)
|
||
return err;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Find beginning of next value. */
|
||
if (mark++ && *mark)
|
||
line = mark;
|
||
else
|
||
line = NULL;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgconf_config_load_cb2 (void *hook, char *line)
|
||
{
|
||
gpgme_error_t err;
|
||
gpgme_conf_comp_t comp = hook;
|
||
gpgme_conf_opt_t *opt_p = comp->_last_opt_p;
|
||
gpgme_conf_opt_t opt;
|
||
#define NR_FIELDS 16
|
||
char *field[NR_FIELDS];
|
||
int fields = 0;
|
||
|
||
while (line && fields < NR_FIELDS)
|
||
{
|
||
field[fields++] = line;
|
||
line = strchr (line, ':');
|
||
if (line)
|
||
*(line++) = '\0';
|
||
}
|
||
|
||
/* We require at least the first 10 fields. */
|
||
if (fields < 10)
|
||
return trace_gpg_error (GPG_ERR_INV_ENGINE);
|
||
|
||
opt = calloc (1, sizeof (*opt));
|
||
if (!opt)
|
||
return gpg_error_from_syserror ();
|
||
|
||
comp->_last_opt_p = &opt->next;
|
||
*opt_p = opt;
|
||
|
||
if (field[0][0])
|
||
{
|
||
opt->name = strdup (field[0]);
|
||
if (!opt->name)
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
|
||
opt->flags = strtoul (field[1], NULL, 0);
|
||
|
||
opt->level = strtoul (field[2], NULL, 0);
|
||
|
||
if (field[3][0])
|
||
{
|
||
opt->description = strdup (field[3]);
|
||
if (!opt->description)
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
|
||
opt->type = strtoul (field[4], NULL, 0);
|
||
|
||
opt->alt_type = strtoul (field[5], NULL, 0);
|
||
|
||
if (field[6][0])
|
||
{
|
||
opt->argname = strdup (field[6]);
|
||
if (!opt->argname)
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
|
||
if (opt->flags & GPGME_CONF_DEFAULT)
|
||
{
|
||
err = gpgconf_parse_option (opt, &opt->default_value, field[7]);
|
||
if (err)
|
||
return err;
|
||
}
|
||
else if ((opt->flags & GPGME_CONF_DEFAULT_DESC) && field[7][0])
|
||
{
|
||
opt->default_description = strdup (field[7]);
|
||
if (!opt->default_description)
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
|
||
if (opt->flags & GPGME_CONF_NO_ARG_DESC)
|
||
{
|
||
opt->no_arg_description = strdup (field[8]);
|
||
if (!opt->no_arg_description)
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
else
|
||
{
|
||
err = gpgconf_parse_option (opt, &opt->no_arg_value, field[8]);
|
||
if (err)
|
||
return err;
|
||
}
|
||
|
||
err = gpgconf_parse_option (opt, &opt->value, field[9]);
|
||
if (err)
|
||
return err;
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgconf_conf_load (void *engine, gpgme_conf_comp_t *comp_p)
|
||
{
|
||
gpgme_error_t err;
|
||
gpgme_conf_comp_t comp = NULL;
|
||
gpgme_conf_comp_t cur_comp;
|
||
|
||
*comp_p = NULL;
|
||
|
||
err = gpgconf_read (engine, "--list-components", NULL,
|
||
gpgconf_config_load_cb, &comp);
|
||
if (err)
|
||
{
|
||
gpgconf_release (comp);
|
||
return err;
|
||
}
|
||
|
||
cur_comp = comp;
|
||
while (!err && cur_comp)
|
||
{
|
||
err = gpgconf_read (engine, "--list-options", cur_comp->name,
|
||
gpgconf_config_load_cb2, cur_comp);
|
||
cur_comp = cur_comp->next;
|
||
}
|
||
|
||
if (err)
|
||
{
|
||
gpgconf_release (comp);
|
||
return err;
|
||
}
|
||
|
||
*comp_p = comp;
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
gpgme_error_t
|
||
_gpgme_conf_arg_new (gpgme_conf_arg_t *arg_p,
|
||
gpgme_conf_type_t type, const void *value)
|
||
{
|
||
gpgme_conf_arg_t arg;
|
||
|
||
arg = calloc (1, sizeof (*arg));
|
||
if (!arg)
|
||
return gpg_error_from_syserror ();
|
||
|
||
if (!value)
|
||
arg->no_arg = 1;
|
||
else
|
||
{
|
||
/* We need to switch on type here because the alt-type is not
|
||
yet known. */
|
||
switch (type)
|
||
{
|
||
case GPGME_CONF_NONE:
|
||
case GPGME_CONF_UINT32:
|
||
arg->value.uint32 = *((unsigned int *) value);
|
||
break;
|
||
|
||
case GPGME_CONF_INT32:
|
||
arg->value.int32 = *((int *) value);
|
||
break;
|
||
|
||
case GPGME_CONF_STRING:
|
||
case GPGME_CONF_FILENAME:
|
||
case GPGME_CONF_LDAP_SERVER:
|
||
case GPGME_CONF_KEY_FPR:
|
||
case GPGME_CONF_PUB_KEY:
|
||
case GPGME_CONF_SEC_KEY:
|
||
case GPGME_CONF_ALIAS_LIST:
|
||
arg->value.string = strdup (value);
|
||
if (!arg->value.string)
|
||
{
|
||
free (arg);
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
break;
|
||
|
||
default:
|
||
free (arg);
|
||
return gpg_error (GPG_ERR_INV_VALUE);
|
||
}
|
||
}
|
||
|
||
*arg_p = arg;
|
||
return 0;
|
||
}
|
||
|
||
|
||
void
|
||
_gpgme_conf_arg_release (gpgme_conf_arg_t arg, gpgme_conf_type_t type)
|
||
{
|
||
/* Lacking the alt_type we need to switch on type here. */
|
||
switch (type)
|
||
{
|
||
case GPGME_CONF_NONE:
|
||
case GPGME_CONF_UINT32:
|
||
case GPGME_CONF_INT32:
|
||
case GPGME_CONF_STRING:
|
||
default:
|
||
break;
|
||
|
||
case GPGME_CONF_FILENAME:
|
||
case GPGME_CONF_LDAP_SERVER:
|
||
case GPGME_CONF_KEY_FPR:
|
||
case GPGME_CONF_PUB_KEY:
|
||
case GPGME_CONF_SEC_KEY:
|
||
case GPGME_CONF_ALIAS_LIST:
|
||
type = GPGME_CONF_STRING;
|
||
break;
|
||
}
|
||
|
||
release_arg (arg, type);
|
||
}
|
||
|
||
|
||
gpgme_error_t
|
||
_gpgme_conf_opt_change (gpgme_conf_opt_t opt, int reset, gpgme_conf_arg_t arg)
|
||
{
|
||
if (reset)
|
||
{
|
||
if (opt->new_value)
|
||
release_arg (opt->new_value, opt->alt_type);
|
||
opt->new_value = NULL;
|
||
opt->change_value = 0;
|
||
}
|
||
else
|
||
{
|
||
/* Support self-assignment, for example for adding an item to an
|
||
existing list. */
|
||
if (opt->new_value && arg != opt->new_value)
|
||
release_arg (opt->new_value, opt->alt_type);
|
||
opt->new_value = arg;
|
||
opt->change_value = 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* FIXME: Major problem: We don't get errors from gpgconf. */
|
||
|
||
static gpgme_error_t
|
||
gpgconf_write (void *engine, char *arg1, char *arg2, gpgme_data_t conf)
|
||
{
|
||
struct engine_gpgconf *gpgconf = engine;
|
||
gpgme_error_t err = 0;
|
||
#define BUFLEN 1024
|
||
char buf[BUFLEN];
|
||
int buflen = 0;
|
||
char *argv[] = { NULL /* file_name */, arg1, arg2, 0 };
|
||
int rp[2];
|
||
struct spawn_fd_item_s cfd[] = { {-1, 0 /* STDIN_FILENO */}, {-1, -1} };
|
||
int status;
|
||
int nwrite;
|
||
|
||
/* FIXME: Deal with engine->home_dir. */
|
||
|
||
/* _gpgme_engine_new guarantees that this is not NULL. */
|
||
argv[0] = gpgconf->file_name;
|
||
|
||
if (_gpgme_io_pipe (rp, 0) < 0)
|
||
return gpg_error_from_syserror ();
|
||
|
||
cfd[0].fd = rp[0];
|
||
|
||
status = _gpgme_io_spawn (gpgconf->file_name, argv, 0, cfd, NULL, NULL, NULL);
|
||
if (status < 0)
|
||
{
|
||
_gpgme_io_close (rp[0]);
|
||
_gpgme_io_close (rp[1]);
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
|
||
for (;;)
|
||
{
|
||
if (buflen == 0)
|
||
{
|
||
do
|
||
{
|
||
buflen = gpgme_data_read (conf, buf, BUFLEN);
|
||
}
|
||
while (buflen < 0 && errno == EAGAIN);
|
||
|
||
if (buflen < 0)
|
||
{
|
||
err = gpg_error_from_syserror ();
|
||
_gpgme_io_close (rp[1]);
|
||
return err;
|
||
}
|
||
else if (buflen == 0)
|
||
{
|
||
/* All is written. */
|
||
_gpgme_io_close (rp[1]);
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
do
|
||
{
|
||
nwrite = _gpgme_io_write (rp[1], buf, buflen);
|
||
}
|
||
while (nwrite < 0 && errno == EAGAIN);
|
||
|
||
if (nwrite > 0)
|
||
{
|
||
buflen -= nwrite;
|
||
if (buflen > 0)
|
||
memmove (&buf[0], &buf[nwrite], buflen);
|
||
}
|
||
else if (nwrite < 0)
|
||
{
|
||
_gpgme_io_close (rp[1]);
|
||
return gpg_error_from_syserror ();
|
||
}
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
arg_to_data (gpgme_data_t conf, gpgme_conf_opt_t option, gpgme_conf_arg_t arg)
|
||
{
|
||
gpgme_error_t err = 0;
|
||
int amt = 0;
|
||
char buf[16];
|
||
|
||
while (amt >= 0 && arg)
|
||
{
|
||
switch (option->alt_type)
|
||
{
|
||
case GPGME_CONF_NONE:
|
||
case GPGME_CONF_UINT32:
|
||
default:
|
||
snprintf (buf, sizeof (buf), "%u", arg->value.uint32);
|
||
buf[sizeof (buf) - 1] = '\0';
|
||
amt = gpgme_data_write (conf, buf, strlen (buf));
|
||
break;
|
||
|
||
case GPGME_CONF_INT32:
|
||
snprintf (buf, sizeof (buf), "%i", arg->value.uint32);
|
||
buf[sizeof (buf) - 1] = '\0';
|
||
amt = gpgme_data_write (conf, buf, strlen (buf));
|
||
break;
|
||
|
||
|
||
case GPGME_CONF_STRING:
|
||
/* The complex types below are only here to silent the
|
||
compiler warning. */
|
||
case GPGME_CONF_FILENAME:
|
||
case GPGME_CONF_LDAP_SERVER:
|
||
case GPGME_CONF_KEY_FPR:
|
||
case GPGME_CONF_PUB_KEY:
|
||
case GPGME_CONF_SEC_KEY:
|
||
case GPGME_CONF_ALIAS_LIST:
|
||
if (arg->value.string)
|
||
{
|
||
/* One quote character, and three times to allow for
|
||
percent escaping. */
|
||
char *ptr = arg->value.string;
|
||
amt = gpgme_data_write (conf, "\"", 1);
|
||
if (amt < 0)
|
||
break;
|
||
|
||
while (!err && *ptr)
|
||
{
|
||
switch (*ptr)
|
||
{
|
||
case '%':
|
||
amt = gpgme_data_write (conf, "%25", 3);
|
||
break;
|
||
|
||
case ':':
|
||
amt = gpgme_data_write (conf, "%3a", 3);
|
||
break;
|
||
|
||
case ',':
|
||
amt = gpgme_data_write (conf, "%2c", 3);
|
||
break;
|
||
|
||
default:
|
||
amt = gpgme_data_write (conf, ptr, 1);
|
||
}
|
||
ptr++;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
if (amt < 0)
|
||
break;
|
||
|
||
arg = arg->next;
|
||
/* Comma separator. */
|
||
if (arg)
|
||
amt = gpgme_data_write (conf, ",", 1);
|
||
}
|
||
|
||
if (amt < 0)
|
||
return gpg_error_from_syserror ();
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
static gpgme_error_t
|
||
gpgconf_conf_save (void *engine, gpgme_conf_comp_t comp)
|
||
{
|
||
gpgme_error_t err;
|
||
int amt = 0;
|
||
/* We use a data object to store the new configuration. */
|
||
gpgme_data_t conf;
|
||
gpgme_conf_opt_t option;
|
||
int something_changed = 0;
|
||
|
||
err = gpgme_data_new (&conf);
|
||
if (err)
|
||
return err;
|
||
|
||
option = comp->options;
|
||
while (!err && amt >= 0 && option)
|
||
{
|
||
if (option->change_value)
|
||
{
|
||
unsigned int flags = 0;
|
||
char buf[16];
|
||
|
||
something_changed = 1;
|
||
|
||
amt = gpgme_data_write (conf, option->name, strlen (option->name));
|
||
if (amt >= 0)
|
||
amt = gpgme_data_write (conf, ":", 1);
|
||
if (amt < 0)
|
||
break;
|
||
|
||
if (!option->new_value)
|
||
flags |= GPGME_CONF_DEFAULT;
|
||
snprintf (buf, sizeof (buf), "%u", flags);
|
||
buf[sizeof (buf) - 1] = '\0';
|
||
|
||
amt = gpgme_data_write (conf, buf, strlen (buf));
|
||
if (amt >= 0)
|
||
amt = gpgme_data_write (conf, ":", 1);
|
||
if (amt < 0)
|
||
break;
|
||
|
||
if (option->new_value)
|
||
{
|
||
err = arg_to_data (conf, option, option->new_value);
|
||
if (err)
|
||
break;
|
||
}
|
||
amt = gpgme_data_write (conf, "\n", 1);
|
||
}
|
||
option = option->next;
|
||
}
|
||
if (!err && amt < 0)
|
||
err = gpg_error_from_syserror ();
|
||
if (err || !something_changed)
|
||
goto bail;
|
||
|
||
err = gpgme_data_seek (conf, 0, SEEK_SET);
|
||
if (err)
|
||
goto bail;
|
||
|
||
err = gpgconf_write (engine, "--change-options", comp->name, conf);
|
||
bail:
|
||
gpgme_data_release (conf);
|
||
return err;
|
||
}
|
||
|
||
|
||
static void
|
||
gpgconf_set_io_cbs (void *engine, gpgme_io_cbs_t io_cbs)
|
||
{
|
||
/* Nothing to do. */
|
||
}
|
||
|
||
|
||
/* Currently, we do not use the engine interface for the various
|
||
operations. */
|
||
void
|
||
_gpgme_conf_release (gpgme_conf_comp_t conf)
|
||
{
|
||
gpgconf_config_release (conf);
|
||
}
|
||
|
||
|
||
struct engine_ops _gpgme_engine_ops_gpgconf =
|
||
{
|
||
/* Static functions. */
|
||
_gpgme_get_gpgconf_path,
|
||
NULL,
|
||
gpgconf_get_version,
|
||
gpgconf_get_req_version,
|
||
gpgconf_new,
|
||
|
||
/* Member functions. */
|
||
gpgconf_release,
|
||
NULL, /* reset */
|
||
NULL, /* set_status_handler */
|
||
NULL, /* set_command_handler */
|
||
NULL, /* set_colon_line_handler */
|
||
NULL, /* set_locale */
|
||
NULL, /* set_protocol */
|
||
NULL, /* decrypt */
|
||
NULL, /* decrypt_verify */
|
||
NULL, /* delete */
|
||
NULL, /* edit */
|
||
NULL, /* encrypt */
|
||
NULL, /* encrypt_sign */
|
||
NULL, /* export */
|
||
NULL, /* export_ext */
|
||
NULL, /* genkey */
|
||
NULL, /* import */
|
||
NULL, /* keylist */
|
||
NULL, /* keylist_ext */
|
||
NULL, /* sign */
|
||
NULL, /* trustlist */
|
||
NULL, /* verify */
|
||
NULL, /* getauditlog */
|
||
NULL, /* opassuan_transact */
|
||
gpgconf_conf_load,
|
||
gpgconf_conf_save,
|
||
gpgconf_set_io_cbs,
|
||
NULL, /* io_event */
|
||
NULL /* cancel */
|
||
};
|