Initial commit

common/os/os.cxx

@@ -0,0 +1,97 @@
+/* Copyright (C) 2010 TightVNC Team.  All Rights Reserved.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <os/os.h>
+
+#include <assert.h>
+
+#ifndef WIN32
+#include <pwd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#else
+#include <windows.h>
+#include <wininet.h> /* MinGW needs it */
+#include <shlobj.h>
+#endif
+
+int getvnchomedir(char **dirp)
+{
+#ifndef WIN32
+	char *homedir, *dir;
+	size_t len;
+	uid_t uid;
+	struct passwd *passwd;
+#else
+	TCHAR *dir;
+	BOOL ret;
+#endif
+
+	assert(dirp != NULL && *dirp == NULL);
+
+#ifndef WIN32
+	homedir = getenv("HOME");
+	if (homedir == NULL) {
+		uid = getuid();
+		passwd = getpwuid(uid);
+		if (passwd == NULL) {
+			/* Do we want emit error msg here? */
+			return -1;
+		}
+		homedir = passwd->pw_dir;
+	}
+
+	len = strlen(homedir);
+	dir = new char[len+7];
+	if (dir == NULL)
+		return -1;
+
+	memcpy(dir, homedir, len);
+	memcpy(dir + len, "/.vnc/\0", 7);
+#else
+	dir = new TCHAR[MAX_PATH];
+	if (dir == NULL)
+		return -1;
+
+	ret = SHGetSpecialFolderPath(NULL, dir, CSIDL_APPDATA, FALSE);
+	if (ret == FALSE) {
+		delete [] dir;
+		return -1;
+	}
+	memcpy(dir+strlen(dir), (TCHAR *)"\\vnc\\\0", 6);
+#endif
+	*dirp = dir;
+	return 0;
+}
+
+int fileexists(char *file)
+{
+#ifdef WIN32
+  return (GetFileAttributes(file) == INVALID_FILE_ATTRIBUTES) ? -1 : 0;
+#else
+  return access(file, R_OK);
+#endif
+}
+
+