| /* Copyright (c) 2010 Lars Nordin <Lars.Nordin@SDlabs.se> |
| * Copyright (C) 2010 Simon Josefsson <simon@josefsson.org> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, |
| * with or without modification, are permitted provided |
| * that the following conditions are met: |
| * |
| * Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the |
| * following disclaimer. |
| * |
| * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * Neither the name of the copyright holder nor the names |
| * of any other contributors may be used to endorse or |
| * promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
| * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| */ |
| |
| #include "libssh2_priv.h" |
| |
| static int _libssh2_initialized = 0; |
| static int _libssh2_init_flags = 0; |
| |
| LIBSSH2_API int |
| libssh2_init(int flags) |
| { |
| if (_libssh2_initialized == 0 && !(flags & LIBSSH2_INIT_NO_CRYPTO)) { |
| libssh2_crypto_init(); |
| #if LIBSSH2_AES_CTR |
| _libssh2_init_aes_ctr(); |
| #endif |
| } |
| |
| _libssh2_initialized++; |
| _libssh2_init_flags |= flags; |
| |
| return 0; |
| } |
| |
| LIBSSH2_API void |
| libssh2_exit(void) |
| { |
| if (_libssh2_initialized == 0) |
| return; |
| |
| _libssh2_initialized--; |
| |
| if (!(_libssh2_init_flags & LIBSSH2_INIT_NO_CRYPTO)) { |
| libssh2_crypto_exit(); |
| } |
| |
| return; |
| } |
| |
| void |
| _libssh2_init_if_needed(void) |
| { |
| if (_libssh2_initialized == 0) |
| (void)libssh2_init (0); |
| } |