diff -r 2e74a46e872e -r 8dfaa3d730b5 core/LibrarySys.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/LibrarySys.cpp	Sun Nov 16 16:06:18 2008 -0800
@@ -0,0 +1,441 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod
+ * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sm_platform.h>
+#include "sm_stringutil.h"
+#include "LibrarySys.h"
+
+LibrarySystem g_LibSys;
+
+CLibrary::~CLibrary()
+{
+	if (m_lib)
+	{
+#if defined PLATFORM_WINDOWS
+		FreeLibrary(m_lib);
+#elif defined PLATFORM_POSIX
+		dlclose(m_lib);
+#endif
+		m_lib = NULL;
+	}
+}
+
+CLibrary::CLibrary(LibraryHandle me)
+{
+	m_lib = me;
+}
+
+void CLibrary::CloseLibrary()
+{
+	delete this;
+}
+
+void *CLibrary::GetSymbolAddress(const char *symname)
+{
+#if defined PLATFORM_WINDOWS
+	return GetProcAddress(m_lib, symname);
+#elif defined PLATFORM_POSIX
+	return dlsym(m_lib, symname);
+#endif
+}
+
+
+/********************
+ ** Directory Code **
+ ********************/
+
+
+CDirectory::CDirectory(const char *path)
+{
+#if defined PLATFORM_WINDOWS
+	char newpath[PLATFORM_MAX_PATH];
+	snprintf(newpath, sizeof(newpath), "%s\\*.*", path);
+	m_dir = FindFirstFileA(newpath, &m_fd);
+	if (!IsValid())
+	{
+		m_fd.cFileName[0] = '\0';
+	}
+#elif defined PLATFORM_POSIX
+	m_dir = opendir(path);
+	if (IsValid())
+	{
+		/* :TODO: we need to read past "." and ".."! */
+		ep = readdir(m_dir);
+		snprintf(m_origpath, PLATFORM_MAX_PATH, "%s", path);
+	} else {
+		ep = NULL;
+	}
+#endif
+}
+
+CDirectory::~CDirectory()
+{
+	if (IsValid())
+	{
+#if defined PLATFORM_WINDOWS
+		FindClose(m_dir);
+#elif defined PLATFORM_POSIX
+		closedir(m_dir);
+#endif
+	}
+}
+
+void CDirectory::NextEntry()
+{
+#if defined PLATFORM_WINDOWS
+	if (FindNextFile(m_dir, &m_fd) == 0)
+	{
+		FindClose(m_dir);
+		m_dir = INVALID_HANDLE_VALUE;
+	}
+#elif defined PLATFORM_POSIX
+	if ((ep=readdir(m_dir)) == NULL)
+	{
+		closedir(m_dir);
+		m_dir = NULL;
+	}
+#endif
+}
+
+bool CDirectory::IsEntryValid()
+{
+	return IsValid();
+}
+
+bool CDirectory::IsEntryDirectory()
+{
+#if defined PLATFORM_WINDOWS
+	return ((m_fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY);
+#elif defined PLATFORM_LINUX
+	char temppath[PLATFORM_MAX_PATH];
+	snprintf(temppath, sizeof(temppath), "%s/%s", m_origpath, GetEntryName());
+	return g_LibSys.IsPathDirectory(temppath);
+#endif
+}
+
+bool CDirectory::IsEntryFile()
+{
+#if defined PLATFORM_WINDOWS
+	return !(m_fd.dwFileAttributes & (FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_DEVICE));
+#elif defined PLATFORM_POSIX
+	char temppath[PLATFORM_MAX_PATH];
+	snprintf(temppath, sizeof(temppath), "%s/%s", m_origpath, GetEntryName());
+	return g_LibSys.IsPathFile(temppath);
+#endif
+}
+
+const char *CDirectory::GetEntryName()
+{
+#if defined PLATFORM_WINDOWS
+	return m_fd.cFileName;
+#elif defined PLATFORM_LINUX
+	return ep ? ep->d_name : "";
+#endif
+}
+
+bool CDirectory::MoreFiles()
+{
+	return IsValid();
+}
+
+bool CDirectory::IsValid()
+{
+#if defined PLATFORM_WINDOWS
+	return (m_dir != INVALID_HANDLE_VALUE);
+#elif defined PLATFORM_LINUX
+	return (m_dir != NULL);
+#endif
+}
+
+
+/*************************
+ ** Library System Code **
+ *************************/
+
+
+bool LibrarySystem::PathExists(const char *path)
+{
+#if defined PLATFORM_WINDOWS
+	DWORD attr = GetFileAttributesA(path);
+
+	return (attr != INVALID_FILE_ATTRIBUTES);
+#elif defined PLATFORM_POSIX
+	struct stat s;
+
+	return (stat(path, &s) == 0);
+#endif
+}
+
+bool LibrarySystem::IsPathFile(const char *path)
+{
+#if defined PLATFORM_WINDOWS
+	DWORD attr = GetFileAttributes(path);
+
+	if (attr == INVALID_FILE_ATTRIBUTES)
+	{
+		return false;
+	}
+
+	if (attr & (FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_DEVICE))
+	{
+		return false;
+	}
+
+	return true;
+#elif defined PLATFORM_LINUX
+	struct stat s;
+
+	if (stat(path, &s) != 0)
+	{
+		return false;
+	}
+
+	return S_ISREG(s.st_mode) ? true : false;
+#endif
+}
+
+bool LibrarySystem::IsPathDirectory(const char *path)
+{
+#if defined PLATFORM_WINDOWS
+	DWORD attr = GetFileAttributes(path);
+
+	if (attr == INVALID_FILE_ATTRIBUTES)
+	{
+		return false;
+	}
+
+	if (attr & FILE_ATTRIBUTE_DIRECTORY)
+	{
+		return true;
+	}
+
+#elif defined PLATFORM_LINUX
+	struct stat s;
+
+	if (stat(path, &s) != 0)
+	{
+		return false;
+	}
+
+	if (S_ISDIR(s.st_mode))
+	{
+		return true;
+	}
+#endif
+
+	return false;
+}
+
+IDirectory *LibrarySystem::OpenDirectory(const char *path)
+{
+	CDirectory *dir = new CDirectory(path);
+
+	if (!dir->IsValid())
+	{
+		delete dir;
+		return NULL;
+	}
+
+	return dir;
+}
+
+void LibrarySystem::GetPlatformError(char *error, size_t maxlength)
+{
+	if (error && maxlength)
+	{
+#if defined PLATFORM_WINDOWS
+		DWORD dw = GetLastError();
+		FormatMessageA(
+			FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
+			NULL,
+			dw,
+			MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+			(LPSTR)error,
+			maxlength,
+			NULL);
+#elif defined PLATFORM_POSIX
+		UTIL_Format(error, maxlength, "%s", strerror(errno));
+#endif
+	}
+}
+
+void LibrarySystem::GetLoaderError(char *buffer, size_t maxlength)
+{
+#if defined PLATFORM_WINDOWS
+	GetPlatformError(buffer, maxlength);
+#elif defined PLATFORM_POSIX
+	if (buffer != NULL && maxlength)
+	{
+		strncopy(buffer, dlerror(), maxlength);
+	}
+#endif
+}
+
+void LibrarySystem::CloseDirectory(IDirectory *dir)
+{
+	delete dir;
+}
+
+ILibrary *LibrarySystem::OpenLibrary(const char *path, char *error, size_t maxlength)
+{
+	LibraryHandle lib;
+#if defined PLATFORM_WINDOWS
+	lib = LoadLibraryA(path);
+#elif defined PLATFORM_POSIX
+	lib = dlopen(path, RTLD_NOW);
+#endif
+
+	if (lib == NULL)
+	{
+		GetLoaderError(error, maxlength);
+		return NULL;
+	}
+
+	return new CLibrary(lib);
+}
+
+size_t LibrarySystem::PathFormat(char *buffer, size_t len, const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	size_t mylen = vsnprintf(buffer, len, fmt, ap);
+	va_end(ap);
+
+	if (mylen >= len)
+	{
+		mylen = len - 1;
+		buffer[mylen] = '\0';
+	}
+
+	for (size_t i=0; i<mylen; i++)
+	{
+		if (buffer[i] == PLATFORM_SEP_ALTCHAR)
+		{
+			buffer[i] = PLATFORM_SEP_CHAR;
+		}
+	}
+
+	return mylen;
+}
+
+const char *LibrarySystem::GetFileExtension(const char *filename)
+{
+	size_t len, end;
+
+	len = strlen(filename);
+
+	/* Minimum string length for filename with ext would be 3; example: a.a */
+	if (len < 3)
+	{
+		return NULL;
+	}
+
+	end = len - 1;
+
+	for (size_t i = end; i <= end; i--)
+	{
+		if (filename[i] == PLATFORM_SEP_CHAR || filename[i] == PLATFORM_SEP_ALTCHAR)
+		{
+			break;
+		}
+
+		if (filename[i] == '.' && i != end && i != 0)
+		{
+			return &filename[++i];
+		}
+	}
+
+	return NULL;
+}
+
+bool LibrarySystem::CreateFolder(const char *path)
+{
+#if defined PLATFORM_WINDOWS
+	return (mkdir(path) != -1);
+#elif defined PLATFORM_POSIX
+	return (mkdir(path, 0775) != -1);
+#endif
+}
+
+size_t LibrarySystem::GetFileFromPath(char *buffer, size_t maxlength, const char *path)
+{
+	size_t length = strlen(path);
+
+	for (size_t i = length - 1;
+		 i >= 0 && i <= length - 1;
+		 i--)
+	{
+		if (path[i] == '/' 
+#if defined PLATFORM_WINDOWS
+			|| path[i] == '\\'
+#endif
+			)
+		{
+			return UTIL_Format(buffer, maxlength, "%s", &path[i+1]);
+		}
+	}
+
+	/* We scanned and found no path separator */
+	return UTIL_Format(buffer, maxlength, "%s", path);
+}
+
+bool LibrarySystem::FileTime(const char *path, FileTimeType type, time_t *pTime)
+{
+#ifdef PLATFORM_WINDOWS
+	struct _stat s;
+	if (_stat(path, &s) != 0)
+#elif defined PLATFORM_POSIX
+	struct stat s;
+	if (stat(path, &s) != 0)
+#endif
+	{
+		return false;
+	}
+
+	if (type == FileTime_LastAccess)
+	{
+		*pTime = s.st_atime;
+	}
+	else if (type == FileTime_Created)
+	{
+		*pTime = s.st_ctime;
+	}
+	else if (type == FileTime_LastChange)
+	{
+		*pTime = s.st_mtime;
+	}
+
+	return true;
+}