1 files changed, 114 insertions, 0 deletions
diff --git a/src/lib/common/unix/DataDirectories.cpp b/src/lib/common/unix/DataDirectories.cpp
new file mode 100644
index 0000000..72e510a
--- /dev/null
+++ b/src/lib/common/unix/DataDirectories.cpp
@@ -0,0 +1,114 @@
+/*
+* barrier -- mouse and keyboard sharing utility
+* Copyright (C) 2018 Debauchee Open Source Group
+*
+* This package is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* found in the file LICENSE that should have accompanied this file.
+*
+* This package 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/>.
+*/
+
+#include "../DataDirectories.h"
+
+#include <unistd.h>    // sysconf
+#include <stdlib.h>    // getenv
+#include <sys/types.h> // getpwuid(_r)
+#include <pwd.h>       // getpwuid(_r)
+
+const std::string ProfileSubdir = "/barrier";
+
+static std::string pw_dir(struct passwd* pwentp)
+{
+    if (pwentp != NULL && pwentp->pw_dir != NULL)
+        return pwentp->pw_dir;
+    return "";
+}
+
+#ifdef HAVE_GETPWUID_R
+
+static std::string unix_home()
+{
+    long size = -1;
+#if defined(_SC_GETPW_R_SIZE_MAX)
+    size = sysconf(_SC_GETPW_R_SIZE_MAX);
+#endif
+    if (size == -1)
+        size = BUFSIZ;
+
+    struct passwd pwent;
+    struct passwd* pwentp;
+    std::string buffer(size, 0);
+    getpwuid_r(getuid(), &pwent, &buffer[0], size, &pwentp);
+    return pw_dir(pwentp);
+}
+
+#else // not HAVE_GETPWUID_R
+
+static std::string unix_home()
+{
+    return pw_dir(getpwuid(getuid()));
+}
+
+#endif // HAVE_GETPWUID_R
+
+static std::string profile_basedir()
+{
+#ifdef WINAPI_XWINDOWS
+    // linux/bsd adheres to freedesktop standards
+    // https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+    const char* dir = getenv("XDG_DATA_HOME");
+    if (dir != NULL)
+        return dir;
+    return unix_home() + "/.local/share";
+#else
+    // macos has its own standards
+    // https://developer.apple.com/library/content/documentation/General/Conceptual/MOSXAppProgrammingGuide/AppRuntime/AppRuntime.html
+    return unix_home() + "/Library/Application Support";
+#endif
+}
+
+const std::string& DataDirectories::profile()
+{
+    if (_profile.empty())
+        _profile = profile_basedir() + ProfileSubdir;
+    return _profile;
+}
+const std::string& DataDirectories::profile(const std::string& path)
+{
+    _profile = path;
+    return _profile;
+}
+
+const std::string& DataDirectories::global()
+{
+    if (_global.empty())
+        // TODO: where on a unix system should public/global shared data go?
+        // as of march 2018 global() is not used for unix
+        _global = "/tmp";
+    return _global;
+}
+const std::string& DataDirectories::global(const std::string& path)
+{
+    _global = path;
+    return _global;
+}
+
+const std::string& DataDirectories::systemconfig()
+{
+    if (_systemconfig.empty())
+        _systemconfig = "/etc";
+    return _systemconfig;
+}
+
+const std::string& DataDirectories::systemconfig(const std::string& path)
+{
+    _systemconfig = path;
+    return _systemconfig;
+}