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);
}


/**
 * 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_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, " "))) {
        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 ();
}
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			}
185
186
187			/**
188			* gpgme_control:
189			* @c: the context
190			* @cmd: command to set
191			* @val: the value for the command.
192			*
193			* This is a replace for gpgme_set_xxx because in a DLL it's better to
194			* reduce the amount of functions.
195			**/
196			void *
197			gpgme_control( gpgme_ctx_t c, int cmd, int val )
198			{
199			if( !c )
200			return 0;
201
202			if( val == -1 ) {
203			switch( cmd ) {
204			case GPGME_CTRL_ARMOR: return (int *)c->use_armor;
205			case GPGME_CTRL_FPR: return c->keygen_fpr;
206			default: return NULL;
207			}
208			}
209
210			switch( cmd ) {
211
212			case GPGME_CTRL_S2K:
213			/* Pass S2K options down to GPG (no=0, yes=1) */
214			c->s2k.used = val;
215			break;
216
217			case GPGME_CTRL_S2K_MODE:
218			c->s2k.mode = val;
219			break;
220
221			case GPGME_CTRL_S2K_HASH:
222			c->s2k.digest_algo = val;
223			break;
224
225			case GPGME_CTRL_TEXTMODE:
226			/* Enable or disable the use of the special textmode. Textmode is for example
227			used for MIME (RFC2015) signatures. */
228			c->use_textmode = val;
229			break;
230
231			case GPGME_CTRL_LISTMODE:
232			/* This function changes the default behaviour of the keylisting functions.
233			Defines values for @mode are: %0 = normal, %1 = fast listing without
234			information about key validity. */
235			c->keylist_mode \|= val;
236			break;
237
238			case GPGME_CTRL_NO_COMPR:
239			c->no_compress = val;
240			c->force_mdc = val == 1? 1 : 0;
241			break;
242
243			case GPGME_CTRL_CIPHER:
244			if (val == -1) { /* disable it */
245			c->cipher_algo = -1;
246			break;
247			}
248			if (val < 1 \|\| val > 7) {
249			c->cipher_algo = GPGME_CIPHER_CAST5;
250			break;
251			}
252			c->cipher_algo = val;
253			break;
254
255			case GPGME_CTRL_TMPFILES: c->use_tmpfiles = val; break;
256			case GPGME_CTRL_WITH_SECRET_KEY: c->with_secret_key = val; break;
257			case GPGME_CTRL_FORCETRUST: c->force_trust = val; break;
258			case GPGME_CTRL_FORCEOPT: c->force_opt = val; break;
259			case GPGME_CTRL_FILE: c->use_file = val; break;
260			case GPGME_CTRL_THROWKEYID: c->use_throwkeyid = val; break;
261			case GPGME_CTRL_ARMOR: c->use_armor = val; break;
262			case GPGME_CTRL_INTERACTIVE: c->interactive = val; break;
263			case GPGME_CTRL_PIPEMODE: c->pipemode = val; break;
264			case GPGME_CTRL_LOGGING: c->use_logging = val; break;
265			case GPGME_CTRL_CB_VAL: c->cb.progress_value_int = val; break;
266			}
267
268			return NULL;
269			}
270
271			/**
272			* gpgme_set_passphrase_cb:
273			* @c: the context
274			* @cb: A callback function
275			* @cb_value: The value passed to the callback function
276			*
277			* This function sets a callback function to be used to pass a passphrase
278			* to gpg. The preferred way to handle this is by using the gpg-agent, but
279			* because that beast is not ready for real use, you can use this passphrase
280			* thing.
281			*
282			* The callback function is defined as:
283			* <literal>
284			* typedef const char (gpgme_passphrase_cb_t)(void*cb_value,
285			* const char *desc,
286			* void *r_hd);
287			* </literal>
288			* and called whenever gpgme needs a passphrase. DESC will have a nice
289			* text, to be used to prompt for the passphrase and R_HD is just a parameter
290			* to be used by the callback it self. Becuase the callback returns a const
291			* string, the callback might want to know when it can release resources
292			* assocated with that returned string; gpgme helps here by calling this
293			* passphrase callback with an DESC of %NULL as soon as it does not need
294			* the returned string anymore. The callback function might then choose
295			* to release resources depending on R_HD.
296			*
297			**/
298			void
299			gpgme_set_passphrase_cb (gpgme_ctx_t ctx, gpgme_passphrase_cb_t cb,
300			void * cb_value)
301			{
302			if (!ctx)
303			return;
304			ctx->cb.passphrase = cb;
305			ctx->cb.passphrase_value = cb_value;
306			} /* gpgme_set_passphrase_cb */
307
308
309			void
310			gpgme_set_interactive_cb (gpgme_ctx_t ctx, gpgme_interactive_cb_t cb,
311			void * cb_value)
312			{
313			if (!ctx)
314			return;
315			ctx->cb.interactiv = cb;
316			ctx->cb.interactiv_value = cb_value;
317			} /* gpgme_set_inteactive_cb */
318
319
320			/**
321			* gpgme_set_pprogress_cb:
322			* @c: the context
323			* @cb: A callback function
324			* @cb_value: The value passed to the callback function
325			*
326			* This function sets a callback function to be used as a progress indicator.
327			*
328			* The callback function is defined as:
329			* <literal>
330			* typedef void (gpgme_progress_cb_t) (void cb_value,
331			* const char * what, int type,
332			* int curretn, int total);
333			* </literal>
334			* For details on the progress events, see the entry for the PROGRESS
335			* status in the file doc/DETAILS of the GnuPG distribution.
336			**/
337			void
338			gpgme_set_progress_cb (gpgme_ctx_t ctx, gpgme_progress_cb_t cb,
339			void * cb_value)
340			{
341			if (!ctx)
342			return;
343			ctx->cb.progress = cb;
344			ctx->cb.progress_value = cb_value;
345			} /* gpgme_set_progress_cb */
346
347
348			void
349			gpgme_set_edit_ctx( gpgme_ctx_t ctx, void * edit_ctx, int edit_id )
350			{
351			if( !ctx )
352			return;
353			ctx->edit_opaque = edit_ctx;
354			ctx->edit_cmd = edit_id;
355			} /* gpgme_set_edit_ctx */
356
357
358			void
359			gpgme_set_list_options (gpgme_ctx_t ctx, int optid)
360			{
361			if (!ctx)
362			return;
363			ctx->list_opts \|= optid;
364			}
365
366
367			void
368			gpgme_set_cache_ctx (gpgme_ctx_t ctx, void * cache_ctx)
369			{
370			if( ctx )
371			ctx->key_lookup = cache_ctx;
372			} /* gpgme_set_cache_ctx */
373
374
375			void
376			gpgme_set_passphrase( gpgme_ctx_t ctx, const char * passphrase )
377			{
378			if( !ctx )
379			return;
380			ctx->passphrase_value = passphrase;
381			ctx->use_pass_fd = 1;
382			} /* gpgme_set_passphrase */
383
384
385			gpgme_error_t
386			_gpgme_add_passphrase( gpgme_ctx_t ctx )
387			{
388			gpgme_error_t err;
389			gpgme_data_t passphrase_fd;
390
391			if( !ctx )
392			return mk_error( Invalid_Value );
393			if( !ctx->passphrase_value \|\| !ctx->use_pass_fd )
394			return mk_error( General_Error );
395
396			err = gpgme_data_new_from_mem( &passphrase_fd, ctx->passphrase_value,
397			strlen( ctx->passphrase_value ), 0 );
398			if( err )
399			return err;
400			_gpgme_data_set_mode( passphrase_fd, GPGME_DATA_MODE_OUT );
401			_gpgme_gpg_add_arg( ctx->gpg, "--passphrase-fd" );
402			_gpgme_gpg_add_data( ctx->gpg, passphrase_fd, -2 );
403
404			return 0;
405			} /* _gpgme_add_passphrase */
406
407
408			void
409			gpgme_set_debug_mode( int val )
410			{
411			if( val )
412			putenv( "GPGME_DEBUG=5:gpgme.dbg" );
413			else
414			putenv( "GPGME_DEBUG=" );
415			} /* gpgme_set_debug_mode */
416
417
418			const char*
419			_gpgme_get_tmpfile( int input )
420			{
421			static char tmpfile[384];
422			char path[256];
423
424			GetTempPath( sizeof path -1, path );
425			_snprintf( tmpfile, sizeof tmpfile -1,
426			"%sgpgme%s.%u", path, input? "IN" : "OUT", _getpid() );
427			return tmpfile;
428			} /* _gpgme_get_tmpfile */
429
430
431			static int
432			_gpgme_unlink( const char * file, int arg )
433			{
434			return unlink( file );
435			} /* _gpgme_unlink */
436
437
438			void
439			_gpgme_del_tmpfiles( gpgme_wipe_t wipe_fnc )
440			{
441			gpgme_wipe_t erase = wipe_fnc? wipe_fnc: _gpgme_unlink;
442
443			erase( _gpgme_get_tmpfile( 0 ), 1 );
444			erase( _gpgme_get_tmpfile( 1 ), 1 );
445			} /* _gpgme_del_tmpfiles */
446
447			void
448			gpgme_set_wipe_fnc( gpgme_ctx_t ctx, gpgme_wipe_t fnc )
449			{
450			if( ctx )
451			ctx->wipe_fnc = fnc;
452			} /* gpgme_set_wipe_fnc */
453
454
455			void
456			gpgme_set_local_user( gpgme_ctx_t ctx, const char * name )
457			{
458			if( ctx && name ) {
459			safe_free (ctx->locusr);
460			ctx->locusr = strdup( name );
461			}
462			} /* gpgme_set_local_user */
463
464
465			int
466			gpgme_get_process_rc (gpgme_ctx_t ctx)
467			{
468			if (!ctx)
469			return -1;
470			return (int)ctx->proc_rc;
471			} /* gpgme_get_process_rc */
472
473
474			void
475			_gpgme_progress_handler (gpgme_ctx_t ctx, char * args)
476			{
477			const char * name = args;
478			char * buf, * p;
479			char * what = NULL;
480			unsigned curr, total, i=0;
481
482			/* what */
483			p = strchr (args, '?');
484			if (!p)
485			return;
486			what = malloc (p-args+2);
487			if (!what) {
488			ctx->out_of_core = 1;
489			return;
490			}
491			while (name && *name != '?')
492			what[i++] = *name++;
493			what[i] = '\0';
494			/* XXX remove space at the end */
495			i = 0;
496			buf = args + (p-args);
497			while ((p = strsep (&buf, " "))) {
498			switch (i) {
499			case 0:
500			break; /* type */
501			case 1:
502			curr = strtoul (p, NULL, 10);
503			break; /* current offset */
504			case 2:
505			total = strtoul (p, NULL, 10);
506			break; /* total */
507			}
508			i++;
509			}
510			if (what) {
511			ctx->cb.progress (ctx->cb.progress_value, what, 0, curr, total);
512			safe_free (what);
513			}
514			} /* _gpgme_progress_handler */
515
516
517			void
518			_gpgme_add_comment (gpgme_ctx_t ctx)
519			{
520			char * p;
521
522			if (ctx->comment)
523			{
524			p = calloc (1, strlen (ctx->comment)+2);
525			if (!p)
526			{
527			ctx->out_of_core = 1;
528			return;
529			}
530			_gpgme_gpg_add_arg (ctx->gpg, "--comment");
531			p[0] = '"';
532			strcpy (p+1, ctx->comment);
533			strcat (p, "\"");
534			_gpgme_gpg_add_arg (ctx->gpg, p);
535			safe_free (p);
536			}
537			}
538
539
540			gpgme_error_t
541			gpgme_check_logging (gpgme_ctx_t ctx)
542			{
543			char * buf;
544
545			if (!ctx)
546			return mk_error (Invalid_Value);
547			buf = gpgme_get_logging (ctx);
548			if (!buf)
549			return mk_error (No_Error);
550
551			/* XXX: this only works for English GPG output!!! */
552			if (strstr (buf, "gpg.conf:") && strstr (buf, "invalid option"))
553			return mk_error (Conf_InvOption);
554
555			free (buf);
556			return 0;
557			}
558
559
560			gpgme_error_t
561			gpgme_lib_init (void)
562			{
563			return 0;
564			}
565
566
567			void
568			gpgme_lib_cleanup (void)
569			{
570			debug_cleanup ();
571			rungpg_cleanup ();
572			io_cleanup ();
573			wait_cleanup ();
574			}