/usr/include/botan-2/botan/dyn_load.h is in libbotan-2-dev 2.4.0-5ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | /*
* Dynamically Loaded Object
* (C) 2010 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_DYNAMIC_LOADER_H_
#define BOTAN_DYNAMIC_LOADER_H_
#include <botan/types.h>
#include <string>
namespace Botan {
/**
* Represents a DLL or shared object
*/
class BOTAN_PUBLIC_API(2,0) Dynamically_Loaded_Library final
{
public:
/**
* Load a DLL (or fail with an exception)
* @param lib_name name or path to a library
*
* If you don't use a full path, the search order will be defined
* by whatever the system linker does by default. Always using fully
* qualified pathnames can help prevent code injection attacks (eg
* via manipulation of LD_LIBRARY_PATH on Linux)
*/
Dynamically_Loaded_Library(const std::string& lib_name);
/**
* Unload the DLL
* @warning Any pointers returned by resolve()/resolve_symbol()
* should not be used after this destructor runs.
*/
~Dynamically_Loaded_Library();
/**
* Load a symbol (or fail with an exception)
* @param symbol names the symbol to load
* @return address of the loaded symbol
*/
void* resolve_symbol(const std::string& symbol);
/**
* Convenience function for casting symbol to the right type
* @param symbol names the symbol to load
* @return address of the loaded symbol
*/
template<typename T>
T resolve(const std::string& symbol)
{
return reinterpret_cast<T>(resolve_symbol(symbol));
}
private:
Dynamically_Loaded_Library(const Dynamically_Loaded_Library&);
Dynamically_Loaded_Library& operator=(const Dynamically_Loaded_Library&);
std::string m_lib_name;
void* m_lib;
};
}
#endif
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