Refactor for shared library use

src/lib/sock.h

@@ -0,0 +1,38 @@
+/**
+ * Necronda Web Server
+ * Basic TCP and TLS socket (header file)
+ * src/lib/sock.h
+ * Lorenz Stechauner, 2021-01-07
+ */
+
+#ifndef NECRONDA_SERVER_SOCK_H
+#define NECRONDA_SERVER_SOCK_H
+
+#include <openssl/crypto.h>
+
+typedef struct {
+    unsigned int enc:1;
+    int socket;
+    SSL_CTX *ctx;
+    SSL *ssl;
+    char *buf;
+    unsigned long buf_len;
+    unsigned long buf_off;
+    long _last_ret;
+    int _errno;
+    unsigned long _ssl_error;
+} sock;
+
+const char *sock_strerror(sock *s);
+
+long sock_send(sock *s, void *buf, unsigned long len, int flags);
+
+long sock_recv(sock *s, void *buf, unsigned long len, int flags);
+
+long sock_splice(sock *dst, sock *src, void *buf, unsigned long buf_len, unsigned long len);
+
+int sock_close(sock *s);
+
+int sock_check(sock *s);
+
+#endif //NECRONDA_SERVER_SOCK_H