trunk/MyGPGME/signers.c

/* signers.c - maintain signer sets
 *      Copyright (C) 2001 Werner Koch (dd9jn)
 *      Copyright (C) 2003 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 "util.h"
#include "context.h"
#include "rungpg.h"

/* The signers are directly stored in the context.
 * So this is quite different to a recipient set.
 */


void
gpgme_signers_clear (gpgme_ctx_t ctx)
{
    int i;
    
    return_if_fail( ctx );    
    if (!ctx->signers)
        return;
    for( i = 0; i < ctx->signers_size; i++ ) {
        if( !ctx->signers[i] )
            break;
        gpgme_key_unref( ctx->signers[i] );
        ctx->signers[i] = NULL;
    }
}


gpgme_error_t
gpgme_signers_add( gpgme_ctx_t ctx, const gpgme_key_t key )
{
    int i = 0;
    
    if (!ctx || !key)
        return mk_error (Invalid_Value);
    
    if (!ctx->signers)
        ctx->signers_size = 0;
    
    for (i=0; i < ctx->signers_size && ctx->signers[i]; i++ )
        ;
    if ( !(i < ctx->signers_size) ) {
        gpgme_key_t *newarr;
        int j;
        int n = ctx->signers_size + 5;
        
        newarr = calloc ( n, sizeof *newarr );
        if ( !newarr )
            return mk_error (Out_Of_Core);
        for (j=0; j < ctx->signers_size; j++ )
            newarr[j] = ctx->signers[j];
        ctx->signers_size = n;
        safe_free (ctx->signers);
        ctx->signers = newarr;
    }
    gpgme_key_ref (key);
    ctx->signers[i] = key;
    return 0;
}


gpgme_key_t
gpgme_signers_enum( const gpgme_ctx_t ctx, int seq )
{
    int i;
    
    return_null_if_fail( ctx );
    return_null_if_fail( seq >= 0 );
    
    if( !ctx->signers )
        ctx->signers_size = 0;
    for (i=0; i < ctx->signers_size && ctx->signers[i]; i++) {
        if (i==seq) {
            gpgme_key_ref (ctx->signers[i]);
            return ctx->signers[i];
        }
    }
    return NULL;
}
1	/* signers.c - maintain signer sets
2	* Copyright (C) 2001 Werner Koch (dd9jn)
3	* Copyright (C) 2003 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
26	#include "util.h"
27	#include "context.h"
28	#include "rungpg.h"
29
30	/* The signers are directly stored in the context.
31	* So this is quite different to a recipient set.
32	*/
33
34
35	void
36	gpgme_signers_clear (gpgme_ctx_t ctx)
37	{
38	int i;
39
40	return_if_fail( ctx );
41	if (!ctx->signers)
42	return;
43	for( i = 0; i < ctx->signers_size; i++ ) {
44	if( !ctx->signers[i] )
45	break;
46	gpgme_key_unref( ctx->signers[i] );
47	ctx->signers[i] = NULL;
48	}
49	}
50
51
52	gpgme_error_t
53	gpgme_signers_add( gpgme_ctx_t ctx, const gpgme_key_t key )
54	{
55	int i = 0;
56
57	if (!ctx \|\| !key)
58	return mk_error (Invalid_Value);
59
60	if (!ctx->signers)
61	ctx->signers_size = 0;
62
63	for (i=0; i < ctx->signers_size && ctx->signers[i]; i++ )
64	;
65	if ( !(i < ctx->signers_size) ) {
66	gpgme_key_t *newarr;
67	int j;
68	int n = ctx->signers_size + 5;
69
70	newarr = calloc ( n, sizeof *newarr );
71	if ( !newarr )
72	return mk_error (Out_Of_Core);
73	for (j=0; j < ctx->signers_size; j++ )
74	newarr[j] = ctx->signers[j];
75	ctx->signers_size = n;
76	safe_free (ctx->signers);
77	ctx->signers = newarr;
78	}
79	gpgme_key_ref (key);
80	ctx->signers[i] = key;
81	return 0;
82	}
83
84
85	gpgme_key_t
86	gpgme_signers_enum( const gpgme_ctx_t ctx, int seq )
87	{
88	int i;
89
90	return_null_if_fail( ctx );
91	return_null_if_fail( seq >= 0 );
92
93	if( !ctx->signers )
94	ctx->signers_size = 0;
95	for (i=0; i < ctx->signers_size && ctx->signers[i]; i++) {
96	if (i==seq) {
97	gpgme_key_ref (ctx->signers[i]);
98	return ctx->signers[i];
99	}
100	}
101	return NULL;
102	}