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libsst-os/SST_DynLib_POSIX.c

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+/*
+	SST_DynLib_POSIX.c
+	Author: Patrick Baggett <ptb1@762studios.com>
+	Created: 12/23/2011
+
+	Purpose: 
+
+	libsst-os dynamic linking functions for POSIX systems
+
+	License:
+
+	This program is free software. It comes without any warranty, to
+	the extent permitted by applicable law. You can redistribute it
+	and/or modify it under the terms of the Do What The Fuck You Want
+	To Public License, Version 2, as published by Sam Hocevar. See
+	http://sam.zoy.org/wtfpl/COPYING for more details.
+
+*/
+
+#include <SST/SST_DynLib.h>
+#include <SST/SST_Assert.h>
+
+#include <stdlib.h>
+#include <dlfcn.h>
+#include <string.h>
+
+/******************************************************************************/
+
+SST_DynLib SST_OS_LoadDynLib(const char* path)
+{
+	SST_OS_DebugAssert(path != NULL, "Path may not be NULL");
+
+	
+	return (SST_DynLib)dlopen(path, RTLD_LAZY);
+}
+
+/******************************************************************************/
+
+SST_DynLibFunc SST_OS_GetLibSymbol(SST_DynLib lib, const char* symbol)
+{
+	uintptr_t tmp;
+
+	SST_OS_DebugAssert(lib != NULL, "Library may not be NULL");
+	SST_OS_DebugAssert(symbol != NULL, "Library may not be NULL");
+
+	tmp = (uintptr_t)dlsym((void*)lib, symbol);
+
+	return (SST_DynLibFunc)tmp;
+}
+
+/******************************************************************************/
+
+void SST_OS_CloseDynLib(SST_DynLib lib)
+{
+	SST_OS_DebugAssert(lib != NULL, "Library may not be NULL");
+
+	dlclose((void*)lib);
+}
+
+/******************************************************************************/
+
+int SST_OS_DynLibName(char* libnameOut, const char* libnameIn)
+{
+	SST_OS_DebugAssert(libnameIn != NULL, "Library name may not be NULL");
+
+	if(libnameOut == NULL)
+		return 3+(int)strlen(libnameIn)+3; /* strlen("lib")+strlen(libnameIn)+strlen(".so") */
+
+	libnameOut[0] = 'l'; /* 	strcpy(libnameOut, "lib") */
+	libnameOut[1] = 'i';
+	libnameOut[2] = 'b';
+	
+	strcpy(libnameOut+3, libnameIn);
+	strcat(libnameOut, ".so");
+
+	return 0;
+}