diff options
Diffstat (limited to 'libssh2-sys/libssh2-1.5.0/src/global.c')
-rw-r--r-- | libssh2-sys/libssh2-1.5.0/src/global.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/libssh2-sys/libssh2-1.5.0/src/global.c b/libssh2-sys/libssh2-1.5.0/src/global.c new file mode 100644 index 0000000..dc45e70 --- /dev/null +++ b/libssh2-sys/libssh2-1.5.0/src/global.c @@ -0,0 +1,78 @@ +/* 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(); + _libssh2_init_aes_ctr(); + } + + _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); +} |