| 1 |
/* pipefile.c - High level interface for file encryption via pipes |
| 2 |
* Copyright (C) 2001 Timo Schulz |
| 3 |
* |
| 4 |
* This file is part of MyGPGME. |
| 5 |
* |
| 6 |
* MyGPGME is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* MyGPGME is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#include <string.h> |
| 22 |
|
| 23 |
#include "util.h" |
| 24 |
#include "context.h" |
| 25 |
#include "ops.h" |
| 26 |
#include "key.h" |
| 27 |
|
| 28 |
#ifdef USE_GPGME_PIPEFILES |
| 29 |
/* |
| 30 |
* File operations based on pipe streams. |
| 31 |
* Warning, this interface should be only used for small files. For real file |
| 32 |
* encryption it's a good idea to use the gpgme_file_xxx functions. |
| 33 |
*/ |
| 34 |
|
| 35 |
gpgme_error_t |
| 36 |
gpgme_op_encrypt_file( gpgme_recipients_t rset, const char *fname, |
| 37 |
const char *output ) |
| 38 |
{ |
| 39 |
gpgme_error_t err = 0; |
| 40 |
gpgme_ctx_t c; |
| 41 |
gpgme_data_t plain, ciph; |
| 42 |
|
| 43 |
err = gpgme_new( &c ); |
| 44 |
if ( err ) |
| 45 |
return err; |
| 46 |
gpgme_control( c, GPGME_CTRL_ARMOR, 1 ); |
| 47 |
|
| 48 |
err = gpgme_data_new_from_file( &plain, fname, 1 ); |
| 49 |
if ( err ) |
| 50 |
goto leave; |
| 51 |
|
| 52 |
err = gpgme_data_new( &ciph ); |
| 53 |
if ( err ) |
| 54 |
goto leave; |
| 55 |
|
| 56 |
err = gpgme_op_encrypt( c, rset, plain, ciph ); |
| 57 |
if ( err ) |
| 58 |
goto leave; |
| 59 |
|
| 60 |
gpgme_data_release_and_set_file( ciph, output ); |
| 61 |
|
| 62 |
leave: |
| 63 |
if ( plain ) |
| 64 |
gpgme_data_release( plain ); |
| 65 |
gpgme_release( c ); |
| 66 |
return err; |
| 67 |
|
| 68 |
} /* gpgme_op_encrypt_file */ |
| 69 |
|
| 70 |
gpgme_error_t |
| 71 |
gpgme_op_decrypt_file( gpgme_ctx_t c, const char *fname, |
| 72 |
const char *output ) |
| 73 |
{ |
| 74 |
gpgme_error_t err = 0; |
| 75 |
gpgme_data_t ciph, plain; |
| 76 |
|
| 77 |
err = gpgme_data_new_from_file( &ciph, fname, 1 ); |
| 78 |
if (err) |
| 79 |
goto leave; |
| 80 |
|
| 81 |
err = gpgme_data_new( &plain ); |
| 82 |
if (err) |
| 83 |
goto leave; |
| 84 |
|
| 85 |
err = gpgme_op_decrypt( c, ciph, plain ); |
| 86 |
if (err) |
| 87 |
goto leave; |
| 88 |
|
| 89 |
gpgme_data_release_and_set_file( plain, output ); |
| 90 |
|
| 91 |
leave: |
| 92 |
if ( ciph ) |
| 93 |
gpgme_data_release( ciph ); |
| 94 |
gpgme_release( c ); |
| 95 |
return err; |
| 96 |
} /* gpgme_op_decrypt_file */ |
| 97 |
|
| 98 |
gpgme_error_t |
| 99 |
gpgme_op_verify_file( const char *fname, const char *detach_sig, |
| 100 |
gpgme_sigstat_t *r_stat ) |
| 101 |
{ |
| 102 |
gpgme_error_t err = 0; |
| 103 |
gpgme_ctx_t c; |
| 104 |
gpgme_data_t sig; |
| 105 |
gpgme_sigstat_t stat; |
| 106 |
|
| 107 |
err = gpgme_new( &c ); |
| 108 |
if ( err ) |
| 109 |
return err; |
| 110 |
|
| 111 |
err = gpgme_data_new_from_file( &sig, fname, 1 ); |
| 112 |
if ( err ) |
| 113 |
goto leave; |
| 114 |
|
| 115 |
err = gpgme_op_verify( c, sig, NULL ); |
| 116 |
if ( err ) { |
| 117 |
*r_stat = 0; |
| 118 |
goto leave; |
| 119 |
} |
| 120 |
|
| 121 |
*r_stat = stat; |
| 122 |
|
| 123 |
leave: |
| 124 |
if ( sig ) |
| 125 |
gpgme_data_release( sig ); |
| 126 |
gpgme_release( c ); |
| 127 |
return err; |
| 128 |
} /* gpgme_op_verify_file */ |
| 129 |
|
| 130 |
gpgme_error_t |
| 131 |
gpgme_op_sign_file( gpgme_ctx_t c,gpgme_sigmode_t mode, const char *keyid, |
| 132 |
const char *fname, const char *output ) |
| 133 |
{ |
| 134 |
gpgme_error_t err = 0; |
| 135 |
gpgme_key_t key; |
| 136 |
gpgme_data_t plain, ciph; |
| 137 |
|
| 138 |
gpgme_control( c, GPGME_CTRL_ARMOR, 1 ); |
| 139 |
|
| 140 |
err = gpgme_data_new_from_file( &plain, fname, 1 ); |
| 141 |
if (err) |
| 142 |
goto leave; |
| 143 |
|
| 144 |
err = gpgme_data_new( &ciph ); |
| 145 |
if (err) |
| 146 |
goto leave; |
| 147 |
|
| 148 |
err = _gpgme_key_new( &key ); |
| 149 |
if (err) |
| 150 |
goto leave; |
| 151 |
strcpy( key->keys.keyid, keyid ); |
| 152 |
gpgme_signers_add( c, key ); |
| 153 |
|
| 154 |
err = gpgme_op_sign( c, plain, ciph, mode ); |
| 155 |
if (err) |
| 156 |
goto leave; |
| 157 |
|
| 158 |
gpgme_key_release( key ); |
| 159 |
gpgme_data_release_and_set_file( ciph, output ); |
| 160 |
|
| 161 |
leave: |
| 162 |
if ( plain ) |
| 163 |
gpgme_data_release( plain ); |
| 164 |
gpgme_release( c ); |
| 165 |
return err; |
| 166 |
} /* gpgme_op_sign_file */ |
| 167 |
|
| 168 |
gpgme_error_t |
| 169 |
gpgme_op_sign_encrypt_file( gpgme_ctx_t c, gpgme_recipients_t rset, |
| 170 |
const char *keyid, const char *fname, |
| 171 |
const char *output ) |
| 172 |
{ |
| 173 |
gpgme_error_t err = 0; |
| 174 |
gpgme_data_t plain, ciph; |
| 175 |
|
| 176 |
gpgme_control( c, GPGME_CTRL_ARMOR, 1 ); |
| 177 |
|
| 178 |
err = gpgme_data_new_from_file( &plain, fname, 1 ); |
| 179 |
if (err) |
| 180 |
goto leave; |
| 181 |
|
| 182 |
err = gpgme_data_new( &ciph ); |
| 183 |
if (err) |
| 184 |
goto leave; |
| 185 |
|
| 186 |
err = gpgme_op_sign_encrypt( c, rset, plain, ciph ); |
| 187 |
if (err) |
| 188 |
goto leave; |
| 189 |
|
| 190 |
gpgme_data_release_and_set_file( ciph, output ); |
| 191 |
|
| 192 |
|
| 193 |
leave: |
| 194 |
if ( ciph ) |
| 195 |
gpgme_data_release( plain ); |
| 196 |
gpgme_release( c ); |
| 197 |
return err; |
| 198 |
} /* gpgme_op_sign_encrypt_file */ |
| 199 |
|
| 200 |
gpgme_error_t |
| 201 |
gpgme_op_import_file(const char *fname) |
| 202 |
{ |
| 203 |
gpgme_error_t err = 0; |
| 204 |
gpgme_ctx_t c; |
| 205 |
gpgme_data_t keydata; |
| 206 |
|
| 207 |
err = gpgme_new( &c ); |
| 208 |
if ( err ) |
| 209 |
return err; |
| 210 |
|
| 211 |
err = gpgme_data_new_from_file( &keydata, fname, 1 ); |
| 212 |
if ( err ) |
| 213 |
goto leave; |
| 214 |
|
| 215 |
err = gpgme_op_import( c, keydata ); |
| 216 |
|
| 217 |
leave: |
| 218 |
if ( keydata ) |
| 219 |
gpgme_data_release( keydata ); |
| 220 |
gpgme_release( c ); |
| 221 |
return err; |
| 222 |
} /* gpgme_op_import_file */ |
| 223 |
|
| 224 |
gpgme_error_t |
| 225 |
gpgme_op_export_file( gpgme_recipients_t rset, const char *output ) |
| 226 |
{ |
| 227 |
gpgme_error_t err = 0; |
| 228 |
gpgme_ctx_t c; |
| 229 |
gpgme_data_t keydata; |
| 230 |
|
| 231 |
err = gpgme_new( &c ); |
| 232 |
if ( err ) |
| 233 |
return err; |
| 234 |
gpgme_control( c, GPGME_CTRL_ARMOR, 1 ); |
| 235 |
|
| 236 |
err = gpgme_data_new( &keydata ); |
| 237 |
if ( err ) |
| 238 |
goto leave; |
| 239 |
|
| 240 |
err = gpgme_op_export( c, rset, keydata ); |
| 241 |
if ( err ) |
| 242 |
goto leave; |
| 243 |
|
| 244 |
gpgme_data_release_and_set_file( keydata, output ); |
| 245 |
|
| 246 |
leave: |
| 247 |
gpgme_release( c ); |
| 248 |
return err; |
| 249 |
} /* gpgme_op_export_file */ |
| 250 |
#endif |
Parent Directory
| 
Revision Log