| 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) |
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| 49 return ops->init(); |
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| 50 else |
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| 51 return FALSE; |
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| 52 } |
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| 53 |
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| 54 gboolean |
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| 55 gaim_ssl_is_supported(void) |
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| 56 { |
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| 57 #ifdef HAVE_SSL |
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| 58 ssl_init(); |
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| 59 return (gaim_ssl_get_ops() != NULL); |
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| 60 #else |
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| 61 return FALSE; |
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| 62 #endif |
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| 63 } |
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| 64 |
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| 65 GaimSslConnection * |
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| 66 gaim_ssl_connect(GaimAccount *account, const char *host, int port, |
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| 67 GaimSslInputFunction func, GaimSslErrorFunction error_func, |
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| 68 void *data) |
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| 69 { |
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| 70 GaimSslConnection *gsc; |
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| 71 GaimSslOps *ops; |
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| 72 int i; |
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| 73 |
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| 74 g_return_val_if_fail(host != NULL, NULL); |
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| 75 g_return_val_if_fail(port != 0 && port != -1, NULL); |
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| 76 g_return_val_if_fail(func != NULL, NULL); |
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| 77 g_return_val_if_fail(gaim_ssl_is_supported(), NULL); |
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| 78 |
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| 79 ops = gaim_ssl_get_ops(); |
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| 80 |
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| 81 g_return_val_if_fail(ops != NULL, NULL); |
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| 82 g_return_val_if_fail(ops->connect_cb != NULL, NULL); |
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| 83 |
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| 84 if (!_ssl_initialized) |
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| 85 { |
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| 86 if (!ssl_init()) |
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| 87 return NULL; |
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| 88 } |
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| 89 |
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| 90 gsc = g_new0(GaimSslConnection, 1); |
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| 91 |
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| 92 gsc->host = g_strdup(host); |
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| 93 gsc->port = port; |
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| 94 gsc->connect_cb_data = data; |
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| 95 gsc->connect_cb = func; |
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| 96 gsc->error_cb = error_func; |
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| 97 |
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| 98 i = gaim_proxy_connect(account, host, port, ops->connect_cb, gsc); |
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| 99 |
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| 100 if (i < 0) |
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| 101 { |
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| 102 g_free(gsc->host); |
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| 103 g_free(gsc); |
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| 104 |
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| 105 return NULL; |
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| 106 } |
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| 107 |
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| 108 return (GaimSslConnection *)gsc; |
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| 109 } |
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| 110 |
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| 111 static void |
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| 112 recv_cb(gpointer data, gint source, GaimInputCondition cond) |
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| 113 { |
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| 114 GaimSslConnection *gsc = data; |
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| 115 |
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| 116 gsc->recv_cb(gsc->recv_cb_data, gsc, cond); |
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| 117 } |
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| 118 |
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| 119 void |
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| 120 gaim_ssl_input_add(GaimSslConnection *gsc, GaimSslInputFunction func, |
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| 121 void *data) |
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| 122 { |
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| 123 g_return_if_fail(func != NULL); |
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| 124 g_return_if_fail(gaim_ssl_is_supported()); |
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| 125 |
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| 126 gsc->recv_cb_data = data; |
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| 127 gsc->recv_cb = func; |
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| 128 |
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| 129 gsc->inpa = gaim_input_add(gsc->fd, GAIM_INPUT_READ, recv_cb, gsc); |
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| 130 } |
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| 131 |
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| 132 GaimSslConnection * |
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| 133 gaim_ssl_connect_fd(GaimAccount *account, int fd, |
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| 134 GaimSslInputFunction func, |
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| 135 GaimSslErrorFunction error_func, void *data) |
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| 136 { |
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| 137 GaimSslConnection *gsc; |
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| 138 GaimSslOps *ops; |
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| 139 |
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| 140 g_return_val_if_fail(fd > 0, NULL); |
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| 141 g_return_val_if_fail(func != NULL, NULL); |
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| 142 g_return_val_if_fail(gaim_ssl_is_supported(), NULL); |
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| 143 |
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| 144 ops = gaim_ssl_get_ops(); |
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| 145 |
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| 146 g_return_val_if_fail(ops != NULL, NULL); |
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| 147 g_return_val_if_fail(ops->connect_cb != NULL, NULL); |
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| 148 |
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| 149 if (!_ssl_initialized) |
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| 150 { |
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| 151 if (!ssl_init()) |
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| 152 return NULL; |
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| 153 } |
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| 154 |
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| 155 gsc = g_new0(GaimSslConnection, 1); |
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| 156 |
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| 157 gsc->connect_cb_data = data; |
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| 158 gsc->connect_cb = func; |
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| 159 gsc->error_cb = error_func; |
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| 160 |
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| 161 ops->connect_cb(gsc, fd, GAIM_INPUT_READ); |
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| 162 |
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| 163 return (GaimSslConnection *)gsc; |
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| 164 } |
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| 165 |
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| 166 void |
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| 167 gaim_ssl_close(GaimSslConnection *gsc) |
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| 168 { |
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| 169 GaimSslOps *ops; |
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| 170 |
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| 171 g_return_if_fail(gsc != NULL); |
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| 172 |
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| 173 ops = gaim_ssl_get_ops(); |
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| 174 |
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| 175 if (gsc->inpa) |
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| 176 gaim_input_remove(gsc->inpa); |
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| 177 |
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| 178 if (ops != NULL && ops->close != NULL) |
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| 179 (ops->close)(gsc); |
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| 180 |
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| 181 if (gsc->fd) |
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| 182 close(gsc->fd); |
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| 183 |
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| 184 if (gsc->host != NULL) |
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| 185 g_free(gsc->host); |
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| 186 |
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| 187 g_free(gsc); |
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| 188 } |
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| 189 |
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| 190 size_t |
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| 191 gaim_ssl_read(GaimSslConnection *gsc, void *data, size_t len) |
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| 192 { |
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| 193 GaimSslOps *ops; |
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| 194 |
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| 195 g_return_val_if_fail(gsc != NULL, 0); |
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| 196 g_return_val_if_fail(data != NULL, 0); |
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| 197 g_return_val_if_fail(len > 0, 0); |
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| 198 |
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| 199 ops = gaim_ssl_get_ops(); |
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| 200 |
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| 201 if (ops != NULL && (ops->read) != NULL) |
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| 202 return (ops->read)(gsc, data, len); |
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| 203 |
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| 204 return 0; |
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| 205 } |
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| 206 |
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| 207 size_t |
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| 208 gaim_ssl_write(GaimSslConnection *gsc, const void *data, size_t len) |
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| 209 { |
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| 210 GaimSslOps *ops; |
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| 211 |
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| 212 g_return_val_if_fail(gsc != NULL, 0); |
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| 213 g_return_val_if_fail(data != NULL, 0); |
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| 214 g_return_val_if_fail(len > 0, 0); |
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| 215 |
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| 216 ops = gaim_ssl_get_ops(); |
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| 217 |
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| 218 if (ops != NULL && (ops->write) != NULL) |
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| 219 return (ops->write)(gsc, data, len); |
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| 220 |
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| 221 return 0; |
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| 222 } |
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| 223 |
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| 224 void |
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| 225 gaim_ssl_set_ops(GaimSslOps *ops) |
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| 226 { |
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| 227 _ssl_ops = ops; |
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| 228 } |
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| 229 |
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| 230 GaimSslOps * |
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| 231 gaim_ssl_get_ops(void) |
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| 232 { |
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| 233 return _ssl_ops; |
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| 234 } |
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| 235 |
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| 236 void |
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| 237 gaim_ssl_init(void) |
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| 238 { |
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| 239 } |
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| 240 |
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| 241 void |
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| 242 gaim_ssl_uninit(void) |
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| 243 { |
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| 244 GaimSslOps *ops; |
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| 245 |
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| 246 if (!_ssl_initialized) |
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| 247 return; |
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| 248 |
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| 249 ops = gaim_ssl_get_ops(); |
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| 250 |
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| 251 if (ops != NULL && ops->uninit != NULL) |
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| 252 ops->uninit(); |
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| 253 |
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| 254 _ssl_initialized = FALSE; |
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| 255 } |
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