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/*
Package: dyncall
Library: dynload
File: dynload/dynload_darwin.c
Description: dynload module for .dylib (mach-o darwin/OS X) files
License:
Copyright (c) 2007-2011 Olivier Chafik <olivier.chafik@gmail.com>
Minor bug-fix modifications by Daniel Adler.
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
dynload_darwin.c
dynload module for .dylib (mach-o darwin/OS X) files
*/
#include "dynload.h"
#include "dynload_alloc.h"
#include <dlfcn.h>
#include <string.h>
struct DLLib_
{
char* libPath;
void* handle;
};
DLLib* dlLoadLibrary(const char* libPath)
{
void* handle;
size_t len;
DLLib* lib;
handle = dlopen(libPath, RTLD_LAZY);
if (!handle)
return NULL;
lib = (DLLib*)dlAllocMem(sizeof(DLLib));
lib->handle = handle;
/* libPath might be null (self reference on image) [Daniel] */
if (libPath != NULL) {
len = strlen(libPath);
lib->libPath = (char*)dlAllocMem(len + 1);
strcpy(lib->libPath, libPath);
lib->libPath[len] = '\0';
} else {
lib->libPath = NULL;
}
return lib;
}
void* dlFindSymbol(DLLib* libHandle, const char* symbol)
{
return dlsym(libHandle && libHandle->handle ? libHandle->handle : RTLD_DEFAULT, symbol);
}
void dlFreeLibrary(DLLib* libHandle)
{
if (!libHandle)
return;
dlclose(libHandle->handle);
if (libHandle->libPath)
dlFreeMem(libHandle->libPath);
dlFreeMem(libHandle);
}
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