trunk/MyGPGME/gpgme.c

/* gpgme.c -  My GnuPG Made Easy
 *      Copyright (C) 2000 Werner Koch (dd9jn)
 *      Copyright (C) 2001-2004 Timo Schulz
 *
 * This file is part of MyGPGME.
 *
 * MyGPGME is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * MyGPGME is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <windows.h>
#include <process.h>

#include "util.h"
#include "context.h"
#include "ops.h"

/**
 * gpgme_new:
 * @r_ctx: Returns the new context
 * 
 * Create a new context to be used with most of the other GPGME
 * functions.  Use gpgme_release_contect() to release all resources
 *
 * Return value: An error code 
 **/
gpgme_error_t
gpgme_new (gpgme_ctx_t * r_ctx)
{
    gpgme_ctx_t ctx;

    if (!r_ctx)
        return mk_error (Invalid_Value);
    *r_ctx = NULL;
    ctx = calloc (1, sizeof *ctx);
    if (!ctx)
        return mk_error (Out_Of_Core);
    ctx->cipher_algo = GPGME_CIPHER_CAST5;
    ctx->s2k.digest_algo = GPGME_MD_SHA1;
    ctx->s2k.mode = GPGME_S2K_ITERSALTED;
    *r_ctx = ctx;
    return 0;
}

/**
 * gpgme_release:
 * @c: Context to be released. 
 * 
 * Release all resources associated with the given context.
 **/
void
gpgme_release (gpgme_ctx_t ctx)
{
    if (!ctx)
        return;
    _gpgme_gpg_release (&ctx->gpg); 
    _gpgme_release_result (ctx);
    gpgme_key_release (ctx->tmp_key);
    gpgme_data_release (ctx->help_data_1);
    gpgme_data_release (ctx->notation);
    gpgme_data_release (ctx->logging);
    gpgme_signers_clear (ctx);
    safe_free (ctx->signers);
    safe_free (ctx->keygen_fpr);
    safe_free (ctx->locusr);
    safe_free (ctx->comment);
    /* fixme: release the key_queue */
    safe_free (ctx);
} /* gpgme_release */


void
_gpgme_release_result (gpgme_ctx_t c)
{
    assert (c);
    switch (c->result_type) {
    case RESULT_TYPE_NONE:
        break;

    case RESULT_TYPE_EDITKEY:
        _gpgme_release_editkey_result (c->result.editk);
        break;

    case RESULT_TYPE_ENCRYPT:             
        _gpgme_release_encrypt_result( c->result.encrypt );
        break;

    case RESULT_TYPE_VERIFY:
          _gpgme_release_verify_result ( c->result.verify );
          break;

    case RESULT_TYPE_DECRYPT:
        _gpgme_release_decrypt_result ( c->result.decrypt );
        break;

    case RESULT_TYPE_SIGN:
        _gpgme_release_sign_result ( c->result.sign );
        break;

    case RESULT_TYPE_SIGN_ENCRYPT:
        _gpgme_release_sign_encrypt_result( c->result.sign_enc );
        break;

    case RESULT_TYPE_IMPORT:
        _gpgme_release_import_result( c->result.import );
        break;

    case RESULT_TYPE_SYMENC:
        _gpgme_release_symenc_result( c->result.symenc );
        break;
    }   

    c->result.verify = NULL;
    c->result_type = RESULT_TYPE_NONE;
} /* _gpgme_release_result */


/**
 * gpgme_cancel:
 * @c: the context
 * 
 * Cancel the current operation.  It is not guaranteed that it will work for
 * all kinds of operations.  It is especially useful in a passphrase callback
 * to stop the system from asking another time for the passphrase.
 **/
void
gpgme_cancel (gpgme_ctx_t c)
{
    return_if_fail (c);
    c->cancel = 1;
    c->pending = 0;
} /* gpgme_cancel */


/**
 * gpgme_get_notation:
 * @c: the context 
 * 
 * If there is notation data available from the last signature check, this
 * function may be used to return this notation data as a string.  The string
 * is a represantaton of that data embedded in a %<notation> container.
 * 
 * Return value: An string or NULL if no notation data is available.
 **/
char *
gpgme_get_notation (gpgme_ctx_t c)
{
    if (!c  || !c->notation)
        return NULL;
    return _gpgme_data_get_as_string (c->notation);
} /* gpgme_get_notation */


char *
gpgme_get_logging (gpgme_ctx_t c)
{
    if (!c || !c->logging)
        return NULL;
    return _gpgme_data_get_as_string (c->logging);
}


void
gpgme_set_comment (gpgme_ctx_t c, const char * text)
{
    if (!c)
        return;
    safe_free (c->comment);
    c->comment = strdup (text);
    if (!c->comment)
        c->out_of_core = 1;
}


void
gpgme_set_homedir (gpgme_ctx_t c, const char *homedir)
{
    if (!c)
        return;
    safe_free (c->homedir);
    c->homedir = strdup (homedir);
    if (!c->homedir)
        c->out_of_core = 1;
}


/**
 * gpgme_control:
 * @c: the context
 * @cmd: command to set
 * @val: the value for the command.
 *
 * This is a replace for gpgme_set_xxx because in a DLL it's better to
 * reduce the amount of functions.
 **/
void *
gpgme_control( gpgme_ctx_t c, int cmd, int val )
{
    if( !c )
        return 0;

    if( val == -1 ) {
        switch( cmd ) {
        case GPGME_CTRL_ARMOR: return (int *)c->use_armor;
        case GPGME_CTRL_FPR:   return c->keygen_fpr;
        default:               return NULL;
        }
    }

    switch( cmd ) {

    case GPGME_CTRL_S2K:
        /* Pass S2K options down to GPG (no=0, yes=1) */
        c->s2k.used = val;
        break;

    case GPGME_CTRL_S2K_MODE:
        c->s2k.mode = val;
        break;

    case GPGME_CTRL_S2K_HASH:
        c->s2k.digest_algo = val;
        break;

    case GPGME_CTRL_TEXTMODE:
        /* Enable or disable the use of the special textmode.  Textmode is for example
            used for MIME (RFC2015) signatures. */
        c->use_textmode = val;
        break;
        
    case GPGME_CTRL_LISTMODE:
        /* This function changes the default behaviour of the keylisting functions.
        Defines values for @mode are: %0 = normal, %1 = fast listing without
        information about key validity. */
        c->keylist_mode |= val;
        break;

    case GPGME_CTRL_NO_COMPR:
        c->no_compress = val;       
        c->force_mdc = val == 1? 1 : 0;
        break;

    case GPGME_CTRL_CIPHER:
        if (val == -1) { /* disable it */
            c->cipher_algo = -1;
            break;
        }
        if (val < 1 || val > 7) {
            c->cipher_algo =  GPGME_CIPHER_CAST5;
            break;
        }
        c->cipher_algo = val;
        break;

    case GPGME_CTRL_TMPFILES:        c->use_tmpfiles = val; break;
    case GPGME_CTRL_WITH_SECRET_KEY: c->with_secret_key = val; break;
    case GPGME_CTRL_FORCETRUST:      c->force_trust = val; break;
    case GPGME_CTRL_FORCEOPT:        c->force_opt = val; break;
    case GPGME_CTRL_FILE:            c->use_file = val; break;
    case GPGME_CTRL_THROWKEYID:      c->use_throwkeyid = val; break;
    case GPGME_CTRL_ARMOR:           c->use_armor = val; break; 
    case GPGME_CTRL_INTERACTIVE:     c->interactive = val; break;
    case GPGME_CTRL_PIPEMODE:        c->pipemode = val; break;
    case GPGME_CTRL_LOGGING:         c->use_logging = val; break;
    case GPGME_CTRL_CB_VAL:          c->cb.progress_value_int = val; break;
    }

    return NULL;
}

/**
 * gpgme_set_passphrase_cb:
 * @c: the context 
 * @cb: A callback function
 * @cb_value: The value passed to the callback function
 * 
 * This function sets a callback function to be used to pass a passphrase
 * to gpg. The preferred way to handle this is by using the gpg-agent, but
 * because that beast is not ready for real use, you can use this passphrase
 * thing.
 *
 * The callback function is defined as:
 * <literal>
 * typedef const char *(*gpgme_passphrase_cb_t)(void*cb_value,
 *                                          const char *desc,
 *                                          void *r_hd);
 * </literal>
 * and called whenever gpgme needs a passphrase. DESC will have a nice
 * text, to be used to prompt for the passphrase and R_HD is just a parameter
 * to be used by the callback it self.  Becuase the callback returns a const
 * string, the callback might want to know when it can release resources
 * assocated with that returned string; gpgme helps here by calling this
 * passphrase callback with an DESC of %NULL as soon as it does not need
 * the returned string anymore.  The callback function might then choose
 * to release resources depending on R_HD.
 *
 **/
void
gpgme_set_passphrase_cb (gpgme_ctx_t ctx, gpgme_passphrase_cb_t cb, 
                         void * cb_value)
{
    if (!ctx)
        return;
    ctx->cb.passphrase = cb;
    ctx->cb.passphrase_value = cb_value;
} /* gpgme_set_passphrase_cb */


void
gpgme_set_interactive_cb (gpgme_ctx_t ctx, gpgme_interactive_cb_t cb, 
                          void * cb_value)
{
    if (!ctx)
        return;
    ctx->cb.interactiv = cb;
    ctx->cb.interactiv_value = cb_value;
} /* gpgme_set_inteactive_cb */


/**
 * gpgme_set_pprogress_cb:
 * @c: the context 
 * @cb: A callback function
 * @cb_value: The value passed to the callback function
 * 
 * This function sets a callback function to be used as a progress indicator.
 *
 * The callback function is defined as:
 * <literal>
 * typedef void (*gpgme_progress_cb_t) (void * cb_value,
 *                                  const char * what, int type,
 *                                  int curretn, int total);
 * </literal>
 * For details on the progress events, see the entry for the PROGRESS
 * status in the file doc/DETAILS of the GnuPG distribution.
 **/
void
gpgme_set_progress_cb (gpgme_ctx_t ctx, gpgme_progress_cb_t cb, 
                       void * cb_value)
{       
    if (!ctx)
        return;
    ctx->cb.progress = cb;
    ctx->cb.progress_value = cb_value;  
} /* gpgme_set_progress_cb */


void
gpgme_set_edit_ctx( gpgme_ctx_t ctx, void * edit_ctx, int edit_id )
{
    if( !ctx )
        return;
    ctx->edit_opaque = edit_ctx;
    ctx->edit_cmd = edit_id;
} /* gpgme_set_edit_ctx */


void
gpgme_set_list_options (gpgme_ctx_t ctx, int optid)
{
    if (!ctx)
        return;
    ctx->list_opts |= optid;
}


void
gpgme_set_cache_ctx (gpgme_ctx_t ctx, void * cache_ctx)
{       
    if( ctx )
        ctx->key_lookup = cache_ctx;
} /* gpgme_set_cache_ctx */


void
gpgme_set_passphrase( gpgme_ctx_t ctx, const char * passphrase )
{       
    if( !ctx )
        return;
    ctx->passphrase_value = passphrase;
    ctx->use_pass_fd = 1;
} /* gpgme_set_passphrase */


gpgme_error_t
_gpgme_add_passphrase( gpgme_ctx_t ctx )
{       
    gpgme_error_t err;
    gpgme_data_t passphrase_fd;

    if( !ctx )
        return mk_error( Invalid_Value );
    if( !ctx->passphrase_value || !ctx->use_pass_fd )
        return mk_error( General_Error );
    
    err = gpgme_data_new_from_mem( &passphrase_fd, ctx->passphrase_value,
                                    strlen( ctx->passphrase_value ), 0 );
    if( err )
        return err;
    _gpgme_data_set_mode( passphrase_fd, GPGME_DATA_MODE_OUT );
    _gpgme_gpg_add_arg( ctx->gpg, "--passphrase-fd" );
    _gpgme_gpg_add_data( ctx->gpg, passphrase_fd, -2 );

    return 0;
} /* _gpgme_add_passphrase */


void
gpgme_set_debug_mode( int val )
{       
    if( val )
        putenv( "GPGME_DEBUG=5:gpgme.dbg" );
    else
        putenv( "GPGME_DEBUG=" );
} /* gpgme_set_debug_mode */


const char*
_gpgme_get_tmpfile( int input )
{
    static char tmpfile[384];
    char path[256];

    GetTempPath( sizeof path -1, path );
    _snprintf( tmpfile, sizeof tmpfile -1, 
        "%sgpgme%s.%u", path, input? "IN" : "OUT", getpid() );
    return tmpfile;
} /* _gpgme_get_tmpfile */


static int
_gpgme_unlink( const char * file, int arg )
{
    return unlink( file );
} /* _gpgme_unlink */


void
_gpgme_del_tmpfiles( gpgme_wipe_t wipe_fnc )
{
    gpgme_wipe_t erase = wipe_fnc? wipe_fnc: (gpgme_wipe_t)_gpgme_unlink;

    erase( _gpgme_get_tmpfile( 0 ), 1 );        
    erase( _gpgme_get_tmpfile( 1 ), 1 );
} /* _gpgme_del_tmpfiles */

void
gpgme_set_wipe_fnc( gpgme_ctx_t ctx, gpgme_wipe_t fnc )
{
    if( ctx )
        ctx->wipe_fnc = fnc;
} /* gpgme_set_wipe_fnc */


void
gpgme_set_local_user( gpgme_ctx_t ctx, const char * name )
{
    if( ctx && name ) {
        safe_free (ctx->locusr);
        ctx->locusr = strdup( name );
    }
} /* gpgme_set_local_user */


int
gpgme_get_process_rc (gpgme_ctx_t ctx)
{
    if (!ctx)
        return -1;
    return (int)ctx->proc_rc;
} /* gpgme_get_process_rc */


void
_gpgme_progress_handler (gpgme_ctx_t ctx, char * args)
{
    const char * name = args;
    char * buf, * p;
    char * what = NULL;
    unsigned curr, total, i=0;

    /* what */
    p = strchr (args, '?');
    if (!p)
        return;
    what = malloc (p-args+2);
    if (!what) {
        ctx->out_of_core = 1;
        return;
    }
    while (name && *name != '?')
        what[i++] = *name++;
    what[i] = '\0';
    /* XXX remove space at the end */
    i = 0;
    buf = args + (p-args);
    while ((p = strsep (&buf, " ")) != NULL) {
        switch (i) {
        case 0: 
            break; /* type */
        case 1: 
            curr = strtoul (p, NULL, 10); 
            break; /* current offset */
        case 2: 
            total = strtoul (p, NULL, 10); 
            break; /* total */
        }
        i++;
    }
    if (what) {
        ctx->cb.progress (ctx->cb.progress_value, what, 0, curr, total);
        safe_free (what);
    }
} /* _gpgme_progress_handler */


void
_gpgme_add_comment (gpgme_ctx_t ctx)
{
    char * p;

    if (ctx->comment) 
    {
        p = calloc (1, strlen (ctx->comment)+2);
        if (!p)
        {
            ctx->out_of_core = 1;
            return;
        }
        _gpgme_gpg_add_arg (ctx->gpg, "--comment");
        p[0] = '"';
        strcpy (p+1, ctx->comment);
        strcat (p, "\"");
        _gpgme_gpg_add_arg (ctx->gpg, p);
        safe_free (p);
    }
}


gpgme_error_t
gpgme_check_logging (gpgme_ctx_t ctx)
{
    char * buf;

    if (!ctx)
        return mk_error (Invalid_Value);
    buf = gpgme_get_logging (ctx);
    if (!buf)
        return mk_error (No_Error);

    /* XXX: this only works for English GPG output!!! */
    if (strstr (buf, "gpg.conf:") && strstr (buf, "invalid option"))
        return mk_error (Conf_InvOption);
    
    free (buf);
    return 0;
}


gpgme_error_t
gpgme_lib_init (void)
{
    return 0;
}


void
gpgme_lib_cleanup (void)
{
    debug_cleanup ();
    rungpg_cleanup ();
    io_cleanup ();
    wait_cleanup ();
    util_cleanup ();
}
1	twoaday	2	/* gpgme.c - My GnuPG Made Easy
2			* Copyright (C) 2000 Werner Koch (dd9jn)
3			* Copyright (C) 2001-2004 Timo Schulz
4			*
5			* This file is part of MyGPGME.
6			*
7			* MyGPGME is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* MyGPGME is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
20			*/
21
22			#include <stdio.h>
23			#include <stdlib.h>
24			#include <assert.h>
25			#include <windows.h>
26			#include <process.h>
27
28			#include "util.h"
29			#include "context.h"
30			#include "ops.h"
31
32			/**
33			* gpgme_new:
34			* @r_ctx: Returns the new context
35			*
36			* Create a new context to be used with most of the other GPGME
37			* functions. Use gpgme_release_contect() to release all resources
38			*
39			* Return value: An error code
40			**/
41			gpgme_error_t
42			gpgme_new (gpgme_ctx_t * r_ctx)
43			{
44			gpgme_ctx_t ctx;
45
46			if (!r_ctx)
47			return mk_error (Invalid_Value);
48			*r_ctx = NULL;
49			ctx = calloc (1, sizeof *ctx);
50			if (!ctx)
51			return mk_error (Out_Of_Core);
52			ctx->cipher_algo = GPGME_CIPHER_CAST5;
53			ctx->s2k.digest_algo = GPGME_MD_SHA1;
54			ctx->s2k.mode = GPGME_S2K_ITERSALTED;
55			*r_ctx = ctx;
56			return 0;
57			}
58
59			/**
60			* gpgme_release:
61			* @c: Context to be released.
62			*
63			* Release all resources associated with the given context.
64			**/
65			void
66			gpgme_release (gpgme_ctx_t ctx)
67			{
68			if (!ctx)
69			return;
70			_gpgme_gpg_release (&ctx->gpg);
71			_gpgme_release_result (ctx);
72			gpgme_key_release (ctx->tmp_key);
73			gpgme_data_release (ctx->help_data_1);
74			gpgme_data_release (ctx->notation);
75			gpgme_data_release (ctx->logging);
76			gpgme_signers_clear (ctx);
77			safe_free (ctx->signers);
78			safe_free (ctx->keygen_fpr);
79			safe_free (ctx->locusr);
80			safe_free (ctx->comment);
81			/* fixme: release the key_queue */
82			safe_free (ctx);
83			} /* gpgme_release */
84
85
86			void
87			_gpgme_release_result (gpgme_ctx_t c)
88			{
89			assert (c);
90			switch (c->result_type) {
91			case RESULT_TYPE_NONE:
92			break;
93
94			case RESULT_TYPE_EDITKEY:
95			_gpgme_release_editkey_result (c->result.editk);
96			break;
97
98			case RESULT_TYPE_ENCRYPT:
99			_gpgme_release_encrypt_result( c->result.encrypt );
100			break;
101
102			case RESULT_TYPE_VERIFY:
103			_gpgme_release_verify_result ( c->result.verify );
104			break;
105
106			case RESULT_TYPE_DECRYPT:
107			_gpgme_release_decrypt_result ( c->result.decrypt );
108			break;
109
110			case RESULT_TYPE_SIGN:
111			_gpgme_release_sign_result ( c->result.sign );
112			break;
113
114			case RESULT_TYPE_SIGN_ENCRYPT:
115			_gpgme_release_sign_encrypt_result( c->result.sign_enc );
116			break;
117
118			case RESULT_TYPE_IMPORT:
119			_gpgme_release_import_result( c->result.import );
120			break;
121
122			case RESULT_TYPE_SYMENC:
123			_gpgme_release_symenc_result( c->result.symenc );
124			break;
125			}
126
127			c->result.verify = NULL;
128			c->result_type = RESULT_TYPE_NONE;
129			} /* _gpgme_release_result */
130
131
132			/**
133			* gpgme_cancel:
134			* @c: the context
135			*
136			* Cancel the current operation. It is not guaranteed that it will work for
137			* all kinds of operations. It is especially useful in a passphrase callback
138			* to stop the system from asking another time for the passphrase.
139			**/
140			void
141			gpgme_cancel (gpgme_ctx_t c)
142			{
143			return_if_fail (c);
144			c->cancel = 1;
145			c->pending = 0;
146			} /* gpgme_cancel */
147
148
149			/**
150			* gpgme_get_notation:
151			* @c: the context
152			*
153			* If there is notation data available from the last signature check, this
154			* function may be used to return this notation data as a string. The string
155			* is a represantaton of that data embedded in a %<notation> container.
156			*
157			* Return value: An string or NULL if no notation data is available.
158			**/
159			char *
160			gpgme_get_notation (gpgme_ctx_t c)
161			{
162			if (!c \|\| !c->notation)
163			return NULL;
164			return _gpgme_data_get_as_string (c->notation);
165			} /* gpgme_get_notation */
166
167
168			char *
169			gpgme_get_logging (gpgme_ctx_t c)
170			{
171			if (!c \|\| !c->logging)
172			return NULL;
173			return _gpgme_data_get_as_string (c->logging);
174			}
175
176
177			void
178			gpgme_set_comment (gpgme_ctx_t c, const char * text)
179			{
180			if (!c)
181			return;
182			safe_free (c->comment);
183			c->comment = strdup (text);
184	twoaday	7	if (!c->comment)
185			c->out_of_core = 1;
186	twoaday	2	}
187
188
189	twoaday	7	void
190			gpgme_set_homedir (gpgme_ctx_t c, const char *homedir)
191			{
192			if (!c)
193			return;
194			safe_free (c->homedir);
195			c->homedir = strdup (homedir);
196			if (!c->homedir)
197			c->out_of_core = 1;
198			}
199
200
201	twoaday	2	/**
202			* gpgme_control:
203			* @c: the context
204			* @cmd: command to set
205			* @val: the value for the command.
206			*
207			* This is a replace for gpgme_set_xxx because in a DLL it's better to
208			* reduce the amount of functions.
209			**/
210			void *
211			gpgme_control( gpgme_ctx_t c, int cmd, int val )
212			{
213			if( !c )
214			return 0;
215
216			if( val == -1 ) {
217			switch( cmd ) {
218			case GPGME_CTRL_ARMOR: return (int *)c->use_armor;
219			case GPGME_CTRL_FPR: return c->keygen_fpr;
220			default: return NULL;
221			}
222			}
223
224			switch( cmd ) {
225
226			case GPGME_CTRL_S2K:
227			/* Pass S2K options down to GPG (no=0, yes=1) */
228			c->s2k.used = val;
229			break;
230
231			case GPGME_CTRL_S2K_MODE:
232			c->s2k.mode = val;
233			break;
234
235			case GPGME_CTRL_S2K_HASH:
236			c->s2k.digest_algo = val;
237			break;
238
239			case GPGME_CTRL_TEXTMODE:
240			/* Enable or disable the use of the special textmode. Textmode is for example
241			used for MIME (RFC2015) signatures. */
242			c->use_textmode = val;
243			break;
244
245			case GPGME_CTRL_LISTMODE:
246			/* This function changes the default behaviour of the keylisting functions.
247			Defines values for @mode are: %0 = normal, %1 = fast listing without
248			information about key validity. */
249			c->keylist_mode \|= val;
250			break;
251
252			case GPGME_CTRL_NO_COMPR:
253			c->no_compress = val;
254			c->force_mdc = val == 1? 1 : 0;
255			break;
256
257			case GPGME_CTRL_CIPHER:
258			if (val == -1) { /* disable it */
259			c->cipher_algo = -1;
260			break;
261			}
262			if (val < 1 \|\| val > 7) {
263			c->cipher_algo = GPGME_CIPHER_CAST5;
264			break;
265			}
266			c->cipher_algo = val;
267			break;
268
269			case GPGME_CTRL_TMPFILES: c->use_tmpfiles = val; break;
270			case GPGME_CTRL_WITH_SECRET_KEY: c->with_secret_key = val; break;
271			case GPGME_CTRL_FORCETRUST: c->force_trust = val; break;
272			case GPGME_CTRL_FORCEOPT: c->force_opt = val; break;
273			case GPGME_CTRL_FILE: c->use_file = val; break;
274			case GPGME_CTRL_THROWKEYID: c->use_throwkeyid = val; break;
275			case GPGME_CTRL_ARMOR: c->use_armor = val; break;
276			case GPGME_CTRL_INTERACTIVE: c->interactive = val; break;
277			case GPGME_CTRL_PIPEMODE: c->pipemode = val; break;
278			case GPGME_CTRL_LOGGING: c->use_logging = val; break;
279			case GPGME_CTRL_CB_VAL: c->cb.progress_value_int = val; break;
280			}
281
282			return NULL;
283			}
284
285			/**
286			* gpgme_set_passphrase_cb:
287			* @c: the context
288			* @cb: A callback function
289			* @cb_value: The value passed to the callback function
290			*
291			* This function sets a callback function to be used to pass a passphrase
292			* to gpg. The preferred way to handle this is by using the gpg-agent, but
293			* because that beast is not ready for real use, you can use this passphrase
294			* thing.
295			*
296			* The callback function is defined as:
297			* <literal>
298			* typedef const char (gpgme_passphrase_cb_t)(void*cb_value,
299			* const char *desc,
300			* void *r_hd);
301			* </literal>
302			* and called whenever gpgme needs a passphrase. DESC will have a nice
303			* text, to be used to prompt for the passphrase and R_HD is just a parameter
304			* to be used by the callback it self. Becuase the callback returns a const
305			* string, the callback might want to know when it can release resources
306			* assocated with that returned string; gpgme helps here by calling this
307			* passphrase callback with an DESC of %NULL as soon as it does not need
308			* the returned string anymore. The callback function might then choose
309			* to release resources depending on R_HD.
310			*
311			**/
312			void
313			gpgme_set_passphrase_cb (gpgme_ctx_t ctx, gpgme_passphrase_cb_t cb,
314			void * cb_value)
315			{
316			if (!ctx)
317			return;
318			ctx->cb.passphrase = cb;
319			ctx->cb.passphrase_value = cb_value;
320			} /* gpgme_set_passphrase_cb */
321
322
323			void
324			gpgme_set_interactive_cb (gpgme_ctx_t ctx, gpgme_interactive_cb_t cb,
325			void * cb_value)
326			{
327			if (!ctx)
328			return;
329			ctx->cb.interactiv = cb;
330			ctx->cb.interactiv_value = cb_value;
331			} /* gpgme_set_inteactive_cb */
332
333
334			/**
335			* gpgme_set_pprogress_cb:
336			* @c: the context
337			* @cb: A callback function
338			* @cb_value: The value passed to the callback function
339			*
340			* This function sets a callback function to be used as a progress indicator.
341			*
342			* The callback function is defined as:
343			* <literal>
344			* typedef void (gpgme_progress_cb_t) (void cb_value,
345			* const char * what, int type,
346			* int curretn, int total);
347			* </literal>
348			* For details on the progress events, see the entry for the PROGRESS
349			* status in the file doc/DETAILS of the GnuPG distribution.
350			**/
351			void
352			gpgme_set_progress_cb (gpgme_ctx_t ctx, gpgme_progress_cb_t cb,
353			void * cb_value)
354			{
355			if (!ctx)
356			return;
357			ctx->cb.progress = cb;
358			ctx->cb.progress_value = cb_value;
359			} /* gpgme_set_progress_cb */
360
361
362			void
363			gpgme_set_edit_ctx( gpgme_ctx_t ctx, void * edit_ctx, int edit_id )
364			{
365			if( !ctx )
366			return;
367			ctx->edit_opaque = edit_ctx;
368			ctx->edit_cmd = edit_id;
369			} /* gpgme_set_edit_ctx */
370
371
372			void
373			gpgme_set_list_options (gpgme_ctx_t ctx, int optid)
374			{
375			if (!ctx)
376			return;
377			ctx->list_opts \|= optid;
378			}
379
380
381			void
382			gpgme_set_cache_ctx (gpgme_ctx_t ctx, void * cache_ctx)
383			{
384			if( ctx )
385			ctx->key_lookup = cache_ctx;
386			} /* gpgme_set_cache_ctx */
387
388
389			void
390			gpgme_set_passphrase( gpgme_ctx_t ctx, const char * passphrase )
391			{
392			if( !ctx )
393			return;
394			ctx->passphrase_value = passphrase;
395			ctx->use_pass_fd = 1;
396			} /* gpgme_set_passphrase */
397
398
399			gpgme_error_t
400			_gpgme_add_passphrase( gpgme_ctx_t ctx )
401			{
402			gpgme_error_t err;
403			gpgme_data_t passphrase_fd;
404
405			if( !ctx )
406			return mk_error( Invalid_Value );
407			if( !ctx->passphrase_value \|\| !ctx->use_pass_fd )
408			return mk_error( General_Error );
409
410			err = gpgme_data_new_from_mem( &passphrase_fd, ctx->passphrase_value,
411			strlen( ctx->passphrase_value ), 0 );
412			if( err )
413			return err;
414			_gpgme_data_set_mode( passphrase_fd, GPGME_DATA_MODE_OUT );
415			_gpgme_gpg_add_arg( ctx->gpg, "--passphrase-fd" );
416			_gpgme_gpg_add_data( ctx->gpg, passphrase_fd, -2 );
417
418			return 0;
419			} /* _gpgme_add_passphrase */
420
421
422			void
423			gpgme_set_debug_mode( int val )
424			{
425			if( val )
426			putenv( "GPGME_DEBUG=5:gpgme.dbg" );
427			else
428			putenv( "GPGME_DEBUG=" );
429			} /* gpgme_set_debug_mode */
430
431
432			const char*
433			_gpgme_get_tmpfile( int input )
434			{
435			static char tmpfile[384];
436			char path[256];
437
438			GetTempPath( sizeof path -1, path );
439			_snprintf( tmpfile, sizeof tmpfile -1,
440	twoaday	7	"%sgpgme%s.%u", path, input? "IN" : "OUT", getpid() );
441	twoaday	2	return tmpfile;
442			} /* _gpgme_get_tmpfile */
443
444
445			static int
446			_gpgme_unlink( const char * file, int arg )
447			{
448			return unlink( file );
449			} /* _gpgme_unlink */
450
451
452			void
453			_gpgme_del_tmpfiles( gpgme_wipe_t wipe_fnc )
454			{
455	twoaday	7	gpgme_wipe_t erase = wipe_fnc? wipe_fnc: (gpgme_wipe_t)_gpgme_unlink;
456	twoaday	2
457			erase( _gpgme_get_tmpfile( 0 ), 1 );
458			erase( _gpgme_get_tmpfile( 1 ), 1 );
459			} /* _gpgme_del_tmpfiles */
460
461			void
462			gpgme_set_wipe_fnc( gpgme_ctx_t ctx, gpgme_wipe_t fnc )
463			{
464			if( ctx )
465			ctx->wipe_fnc = fnc;
466			} /* gpgme_set_wipe_fnc */
467
468
469			void
470			gpgme_set_local_user( gpgme_ctx_t ctx, const char * name )
471			{
472			if( ctx && name ) {
473			safe_free (ctx->locusr);
474			ctx->locusr = strdup( name );
475			}
476			} /* gpgme_set_local_user */
477
478
479			int
480			gpgme_get_process_rc (gpgme_ctx_t ctx)
481			{
482			if (!ctx)
483			return -1;
484			return (int)ctx->proc_rc;
485			} /* gpgme_get_process_rc */
486
487
488			void
489			_gpgme_progress_handler (gpgme_ctx_t ctx, char * args)
490			{
491			const char * name = args;
492			char * buf, * p;
493			char * what = NULL;
494			unsigned curr, total, i=0;
495
496			/* what */
497			p = strchr (args, '?');
498			if (!p)
499			return;
500			what = malloc (p-args+2);
501			if (!what) {
502			ctx->out_of_core = 1;
503			return;
504			}
505			while (name && *name != '?')
506			what[i++] = *name++;
507			what[i] = '\0';
508			/* XXX remove space at the end */
509			i = 0;
510			buf = args + (p-args);
511	twoaday	7	while ((p = strsep (&buf, " ")) != NULL) {
512	twoaday	2	switch (i) {
513			case 0:
514			break; /* type */
515			case 1:
516			curr = strtoul (p, NULL, 10);
517			break; /* current offset */
518			case 2:
519			total = strtoul (p, NULL, 10);
520			break; /* total */
521			}
522			i++;
523			}
524			if (what) {
525			ctx->cb.progress (ctx->cb.progress_value, what, 0, curr, total);
526			safe_free (what);
527			}
528			} /* _gpgme_progress_handler */
529
530
531			void
532			_gpgme_add_comment (gpgme_ctx_t ctx)
533			{
534			char * p;
535
536			if (ctx->comment)
537			{
538			p = calloc (1, strlen (ctx->comment)+2);
539			if (!p)
540			{
541			ctx->out_of_core = 1;
542			return;
543			}
544			_gpgme_gpg_add_arg (ctx->gpg, "--comment");
545			p[0] = '"';
546			strcpy (p+1, ctx->comment);
547			strcat (p, "\"");
548			_gpgme_gpg_add_arg (ctx->gpg, p);
549			safe_free (p);
550			}
551			}
552
553
554			gpgme_error_t
555			gpgme_check_logging (gpgme_ctx_t ctx)
556			{
557			char * buf;
558
559			if (!ctx)
560			return mk_error (Invalid_Value);
561			buf = gpgme_get_logging (ctx);
562			if (!buf)
563			return mk_error (No_Error);
564
565			/* XXX: this only works for English GPG output!!! */
566			if (strstr (buf, "gpg.conf:") && strstr (buf, "invalid option"))
567			return mk_error (Conf_InvOption);
568
569			free (buf);
570			return 0;
571			}
572
573
574			gpgme_error_t
575			gpgme_lib_init (void)
576			{
577			return 0;
578			}
579
580
581			void
582			gpgme_lib_cleanup (void)
583			{
584			debug_cleanup ();
585			rungpg_cleanup ();
586			io_cleanup ();
587			wait_cleanup ();
588	twoaday	7	util_cleanup ();
589	twoaday	2	}