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57 lines
2.2 KiB
57 lines
2.2 KiB
/* Copyright © 2013, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef DLWRAP_H
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#define DLWRAP_H
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#define _GNU_SOURCE
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#include <dlfcn.h>
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/* Call the *real* dlopen. We have our own wrapper for dlopen that, of
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* necessity must use claim the symbol 'dlopen'. So whenever anything
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* internal needs to call the real, underlying dlopen function, the
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* thing to call is dlwrap_real_dlopen.
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*/
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void *
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dlwrap_real_dlopen(const char *filename, int flag);
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/* Perform a dlopen on the libfips library itself.
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*
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* Many places in fips need to lookup symbols within the libfips
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* library itself, (and not in any other library). This function
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* provides a reliable way to get a handle for performing such
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* lookups.
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*
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* The returned handle can be passed to dlwrap_real_dlsym for the
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* lookups. */
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void *
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dlwrap_dlopen_libfips(void);
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/* Call the *real* dlsym. We have our own wrapper for dlsym that, of
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* necessity must use claim the symbol 'dlsym'. So whenever anything
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* internal needs to call the real, underlying dlysm function, the
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* thing to call is dlwrap_real_dlsym.
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*/
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void *
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dlwrap_real_dlsym(void *handle, const char *symbol);
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#endif
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