SSL socket snippet, server checks client's certificates

SSL_Socket_snippet/cmdlnopts.h

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+/*
+ * This file is part of the sslsosk project.
+ * Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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/>.
+ */
+
+#pragma once
+
+// default PID filename:
+#ifndef DEFAULT_PIDFILE
+#define DEFAULT_PIDFILE "/tmp/sslsock.pid"
+#endif
+#ifndef DEFAULT_PORT
+#define DEFAULT_PORT    "4444"
+#endif
+
+/*
+ * here are some typedef's for global data
+ */
+typedef struct{
+    char *pidfile;          // name of PID file
+    char *logfile;          // logging to this file
+    char *cert;             // sertificate
+    char *key;              // key
+    char *port;             // port number
+    int verbose;            // logfile verbose level
+    char *ca;               // ca
+#ifdef CLIENT
+    char *serverhost;       // server IP address
+#endif
+} glob_pars;
+
+extern glob_pars G;
+
+void parse_args(int argc, char **argv);
+