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Fix for Symbol not found error while loading dynamic python extensions #37

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Merged
greatwolf merged 2 commits into from
Mar 7, 2017
Merged

Fix for Symbol not found error while loading dynamic python extensions #37

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adbc843
Fix: Symbol not found error while loading dynamic python extensions.
adnanyaqoobvirk Mar 3, 2016
4584aa7
Buffer overflow fix while loading python library.
adnanyaqoobvirk Mar 3, 2016
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15 changes: 15 additions & 0 deletions src/pythoninlua.c
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@

*/
#include <Python.h>
#include <dlfcn.h>

/* need this to build with Lua 5.2: defines luaL_register() macro */
#define LUA_COMPAT_MODULE
Expand Down Expand Up @@ -578,6 +579,20 @@ LUA_API int luaopen_python(lua_State *L)
#endif
Py_SetProgramName(argv[0]);
PyImport_AppendInittab("lua", PyInit_lua);

/* Loading python library symbols so that dynamic extensions don't throw symbol not found error.
Ref Link: http://stackoverflow.com/questions/29880931/importerror-and-pyexc-systemerror-while-embedding-python-script-within-c-for-pam
*/
char str_python_lib[20];
#ifdef _WIN32
sprintf(str_python_lib, "libpython%d.%d.dll", PY_MAJOR_VERSION, PY_MINOR_VERSION);
#elif defined __unix__
sprintf(str_python_lib, "libpython%d.%d.so", PY_MAJOR_VERSION, PY_MINOR_VERSION);
#elif defined __APPLE__
sprintf(str_python_lib, "libpython%d.%d.dylib", PY_MAJOR_VERSION, PY_MINOR_VERSION);
#endif
dlopen(str_python_lib, RTLD_NOW | RTLD_GLOBAL);

Py_Initialize();
PySys_SetArgv(1, argv);
/* Import 'lua' automatically. */
Expand Down