1 files changed, 112 insertions, 0 deletions
diff --git a/src/openvpnmsica/msica_arg.h b/src/openvpnmsica/msica_arg.h
new file mode 100644
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--- /dev/null
+++ b/src/openvpnmsica/msica_arg.h
@@ -0,0 +1,112 @@
+/*
+ *  openvpnmsica -- Custom Action DLL to provide OpenVPN-specific support to MSI packages
+ *                  https://community.openvpn.net/openvpn/wiki/OpenVPNMSICA
+ *
+ *  Copyright (C) 2018-2021 Simon Rozman <simon@rozman.si>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  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, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MSICA_ARG_H
+#define MSICA_ARG_H
+
+#include <windows.h>
+#include <tchar.h>
+#include "../tapctl/basic.h"
+
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 4200) /* Using zero-sized arrays in struct/union. */
+#endif
+
+
+/**
+ * Argument list
+ */
+struct msica_arg
+{
+    struct msica_arg *next; /** Pointer to the next argument in the sequence */
+    TCHAR val[];            /** Zero terminated argument string */
+};
+
+
+/**
+ * Argument sequence
+ */
+struct msica_arg_seq
+{
+    struct msica_arg *head; /** Pointer to the first argument in the sequence */
+    struct msica_arg *tail; /** Pointer to the last argument in the sequence */
+};
+
+
+/**
+ * Initializes argument sequence
+ *
+ * @param seq           Pointer to uninitialized argument sequence
+ */
+void
+msica_arg_seq_init(_Inout_ struct msica_arg_seq *seq);
+
+
+/**
+ * Frees argument sequence
+ *
+ * @param seq           Pointer to the argument sequence
+ */
+void
+msica_arg_seq_free(_Inout_ struct msica_arg_seq *seq);
+
+
+/**
+ * Inserts argument to the beginning of the argument sequence
+ *
+ * @param seq           Pointer to the argument sequence
+ *
+ * @param argument      Zero-terminated argument string to insert.
+ */
+void
+msica_arg_seq_add_head(
+    _Inout_ struct msica_arg_seq *seq,
+    _In_z_ LPCTSTR argument);
+
+
+/**
+ * Appends argument to the end of the argument sequence
+ *
+ * @param seq           Pointer to the argument sequence
+ *
+ * @param argument      Zero-terminated argument string to append.
+ */
+void
+msica_arg_seq_add_tail(
+    _Inout_ struct msica_arg_seq *seq,
+    _Inout_ LPCTSTR argument);
+
+/**
+ * Join arguments of the argument sequence into a space delimited string
+ *
+ * @param seq           Pointer to the argument sequence
+ *
+ * @return Joined argument string. Must be released with free() after use.
+ */
+LPTSTR
+msica_arg_seq_join(_In_ const struct msica_arg_seq *seq);
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+#endif /* ifndef MSICA_ARG_H */