| 1 /** |
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| 2 * @file sslconn.c SSL API |
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| 3 * @ingroup core |
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| 4 * |
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| 5 * gaim |
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| 6 * |
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| 7 * Gaim is the legal property of its developers, whose names are too numerous |
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| 8 * to list here. Please refer to the COPYRIGHT file distributed with this |
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| 9 * source distribution. |
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| 10 * |
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| 11 * This program is free software; you can redistribute it and/or modify |
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| 12 * it under the terms of the GNU General Public License as published by |
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| 13 * the Free Software Foundation; either version 2 of the License, or |
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| 14 * (at your option) any later version. |
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| 15 * |
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| 16 * This program is distributed in the hope that it will be useful, |
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| 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 19 * GNU General Public License for more details. |
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| 20 * |
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| 21 * You should have received a copy of the GNU General Public License |
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| 22 * along with this program; if not, write to the Free Software |
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| 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 24 */ |
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| 25 #include "internal.h" |
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| 26 |
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| 27 #include "debug.h" |
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| 28 #include "sslconn.h" |
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| 29 |
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| 30 static gboolean _ssl_initialized = FALSE; |
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| 31 static GaimSslOps *_ssl_ops = NULL; |
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| 32 |
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| 33 static gboolean |
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| 34 ssl_init(void) |
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| 35 { |
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| 36 GaimPlugin *plugin; |
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| 37 GaimSslOps *ops; |
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| 38 |
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| 39 if (_ssl_initialized) |
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| 40 return FALSE; |
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| 41 |
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| 42 plugin = gaim_plugins_find_with_id("core-ssl"); |
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| 43 |
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| 44 if (plugin != NULL && !gaim_plugin_is_loaded(plugin)) |
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| 45 gaim_plugin_load(plugin); |
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| 46 |
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| 47 ops = gaim_ssl_get_ops(); |
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| 48 if ((ops == NULL) || (ops->init == NULL) || (ops->uninit == NULL) || |
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| 49 (ops->connectfunc == NULL) || (ops->close == NULL) || |
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| 50 (ops->read == NULL) || (ops->write == NULL)) |
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| 51 { |
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| 52 return FALSE; |
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| 53 } |
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| 54 |
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| 55 return ops->init(); |
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| 56 } |
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| 57 |
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| 58 gboolean |
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| 59 gaim_ssl_is_supported(void) |
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| 60 { |
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| 61 #ifdef HAVE_SSL |
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| 62 ssl_init(); |
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| 63 return (gaim_ssl_get_ops() != NULL); |
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| 64 #else |
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| 65 return FALSE; |
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| 66 #endif |
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| 67 } |
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| 68 |
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| 69 static void |
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| 70 gaim_ssl_connect_cb(gpointer data, gint source, const gchar *error_message) |
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| 71 { |
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| 72 GaimSslConnection *gsc; |
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| 73 GaimSslOps *ops; |
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| 74 |
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| 75 gsc = data; |
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| 76 gsc->connect_info = NULL; |
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| 77 |
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| 78 if (source < 0) |
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| 79 { |
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| 80 if (gsc->error_cb != NULL) |
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| 81 gsc->error_cb(gsc, GAIM_SSL_CONNECT_FAILED, gsc->connect_cb_data); |
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| 82 |
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| 83 gaim_ssl_close(gsc); |
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| 84 return; |
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| 85 } |
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| 86 |
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| 87 gsc->fd = source; |
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| 88 |
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| 89 ops = gaim_ssl_get_ops(); |
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| 90 ops->connectfunc(gsc); |
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| 91 } |
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| 92 |
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| 93 GaimSslConnection * |
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| 94 gaim_ssl_connect(GaimAccount *account, const char *host, int port, |
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| 95 GaimSslInputFunction func, GaimSslErrorFunction error_func, |
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| 96 void *data) |
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| 97 { |
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| 98 GaimSslConnection *gsc; |
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| 99 |
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| 100 g_return_val_if_fail(host != NULL, NULL); |
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| 101 g_return_val_if_fail(port != 0 && port != -1, NULL); |
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| 102 g_return_val_if_fail(func != NULL, NULL); |
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| 103 g_return_val_if_fail(gaim_ssl_is_supported(), NULL); |
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| 104 |
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| 105 if (!_ssl_initialized) |
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| 106 { |
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| 107 if (!ssl_init()) |
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| 108 return NULL; |
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| 109 } |
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| 110 |
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| 111 gsc = g_new0(GaimSslConnection, 1); |
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| 112 |
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| 113 gsc->fd = -1; |
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| 114 gsc->host = g_strdup(host); |
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| 115 gsc->port = port; |
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| 116 gsc->connect_cb_data = data; |
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| 117 gsc->connect_cb = func; |
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| 118 gsc->error_cb = error_func; |
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| 119 |
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| 120 gsc->connect_info = gaim_proxy_connect(account, host, port, gaim_ssl_connect_cb, gsc); |
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| 121 |
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| 122 if (gsc->connect_info == NULL) |
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| 123 { |
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| 124 g_free(gsc->host); |
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| 125 g_free(gsc); |
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| 126 |
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| 127 return NULL; |
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| 128 } |
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| 129 |
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| 130 return (GaimSslConnection *)gsc; |
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| 131 } |
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| 132 |
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| 133 static void |
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| 134 recv_cb(gpointer data, gint source, GaimInputCondition cond) |
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| 135 { |
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| 136 GaimSslConnection *gsc = data; |
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| 137 |
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| 138 gsc->recv_cb(gsc->recv_cb_data, gsc, cond); |
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| 139 } |
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| 140 |
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| 141 void |
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| 142 gaim_ssl_input_add(GaimSslConnection *gsc, GaimSslInputFunction func, |
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| 143 void *data) |
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| 144 { |
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| 145 g_return_if_fail(func != NULL); |
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| 146 g_return_if_fail(gaim_ssl_is_supported()); |
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| 147 |
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| 148 gsc->recv_cb_data = data; |
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| 149 gsc->recv_cb = func; |
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| 150 |
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| 151 gsc->inpa = gaim_input_add(gsc->fd, GAIM_INPUT_READ, recv_cb, gsc); |
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| 152 } |
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| 153 |
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| 154 GaimSslConnection * |
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| 155 gaim_ssl_connect_fd(GaimAccount *account, int fd, |
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| 156 GaimSslInputFunction func, |
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| 157 GaimSslErrorFunction error_func, void *data) |
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| 158 { |
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| 159 GaimSslConnection *gsc; |
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| 160 GaimSslOps *ops; |
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| 161 |
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| 162 g_return_val_if_fail(fd != -1, NULL); |
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| 163 g_return_val_if_fail(func != NULL, NULL); |
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| 164 g_return_val_if_fail(gaim_ssl_is_supported(), NULL); |
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| 165 |
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| 166 if (!_ssl_initialized) |
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| 167 { |
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| 168 if (!ssl_init()) |
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| 169 return NULL; |
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| 170 } |
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| 171 |
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| 172 gsc = g_new0(GaimSslConnection, 1); |
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| 173 |
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| 174 gsc->connect_cb_data = data; |
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| 175 gsc->connect_cb = func; |
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| 176 gsc->error_cb = error_func; |
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| 177 gsc->fd = fd; |
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| 178 |
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| 179 ops = gaim_ssl_get_ops(); |
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| 180 ops->connectfunc(gsc); |
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| 181 |
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| 182 return (GaimSslConnection *)gsc; |
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| 183 } |
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| 184 |
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| 185 void |
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| 186 gaim_ssl_close(GaimSslConnection *gsc) |
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| 187 { |
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| 188 GaimSslOps *ops; |
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| 189 |
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| 190 g_return_if_fail(gsc != NULL); |
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| 191 |
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| 192 ops = gaim_ssl_get_ops(); |
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| 193 (ops->close)(gsc); |
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| 194 |
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| 195 if (gsc->connect_info != NULL) |
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| 196 gaim_proxy_connect_cancel(gsc->connect_info); |
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| 197 |
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| 198 if (gsc->inpa > 0) |
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| 199 gaim_input_remove(gsc->inpa); |
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| 200 |
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| 201 if (gsc->fd >= 0) |
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| 202 close(gsc->fd); |
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| 203 |
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| 204 g_free(gsc->host); |
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| 205 g_free(gsc); |
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| 206 } |
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| 207 |
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| 208 size_t |
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| 209 gaim_ssl_read(GaimSslConnection *gsc, void *data, size_t len) |
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| 210 { |
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| 211 GaimSslOps *ops; |
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| 212 |
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| 213 g_return_val_if_fail(gsc != NULL, 0); |
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| 214 g_return_val_if_fail(data != NULL, 0); |
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| 215 g_return_val_if_fail(len > 0, 0); |
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| 216 |
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| 217 ops = gaim_ssl_get_ops(); |
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| 218 return (ops->read)(gsc, data, len); |
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| 219 } |
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| 220 |
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| 221 size_t |
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| 222 gaim_ssl_write(GaimSslConnection *gsc, const void *data, size_t len) |
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| 223 { |
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| 224 GaimSslOps *ops; |
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| 225 |
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| 226 g_return_val_if_fail(gsc != NULL, 0); |
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| 227 g_return_val_if_fail(data != NULL, 0); |
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| 228 g_return_val_if_fail(len > 0, 0); |
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| 229 |
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| 230 ops = gaim_ssl_get_ops(); |
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| 231 return (ops->write)(gsc, data, len); |
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| 232 } |
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| 233 |
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| 234 void |
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| 235 gaim_ssl_set_ops(GaimSslOps *ops) |
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| 236 { |
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| 237 _ssl_ops = ops; |
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| 238 } |
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| 239 |
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| 240 GaimSslOps * |
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| 241 gaim_ssl_get_ops(void) |
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| 242 { |
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| 243 return _ssl_ops; |
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| 244 } |
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| 245 |
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| 246 void |
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| 247 gaim_ssl_init(void) |
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| 248 { |
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| 249 } |
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| 250 |
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| 251 void |
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| 252 gaim_ssl_uninit(void) |
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| 253 { |
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| 254 GaimSslOps *ops; |
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| 255 |
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| 256 if (!_ssl_initialized) |
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| 257 return; |
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| 258 |
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| 259 ops = gaim_ssl_get_ops(); |
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| 260 ops->uninit(); |
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| 261 |
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| 262 _ssl_initialized = FALSE; |
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| 263 } |
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