From 6be689f5cdfa5d4c16c71a314616023e4ce5617a Mon Sep 17 00:00:00 2001
From: Dealer_WeARE <wadealer@gmail.com>
Date: Sun, 28 Apr 2019 17:21:32 +0200
Subject: [PATCH] Use forward declaration for ssl.

---
 ftplib.cpp        | 27 +++++++++++++++++++++++----
 ftplib.h          | 40 ++++++++++++++++++++++++----------------
 sample/Readme.md  | 23 ++++++++++++++---------
 sample/sample.cpp |  4 ++--
 4 files changed, 63 insertions(+), 31 deletions(-)

diff --git a/ftplib.cpp b/ftplib.cpp
index 924ed9a..2febcf2 100755
--- a/ftplib.cpp
+++ b/ftplib.cpp
@@ -5,8 +5,16 @@
 #define _LARGEFILE64_SOURCE
 #endif
 
+#ifndef NOSSL
+#include <openssl/ssl.h>
+#endif
+
 #include "ftplib.h"
 
+#ifndef NOSSL
+#include <openssl/ssl.h>
+#endif
+
 #if defined(_WIN32)
 #include <windows.h>
 #include <winsock.h>
@@ -1527,9 +1535,13 @@ int ftplib::Fxp(ftplib* src, ftplib* dst, const char *pathSrc, const char *pathD
 	return retval;
 }
 
-#ifndef NOSSL
+
 int ftplib::SetDataEncryption(dataencryption enc)
 {
+#ifdef NOSSL
+	(void)enc;
+	return 0;
+#else
 	if (!mp_ftphandle->tlsctrl) return 0;
 	if (!FtpSendCmd("PBSZ 0",'2',mp_ftphandle)) return 0;
 	switch(enc)
@@ -1546,10 +1558,14 @@ int ftplib::SetDataEncryption(dataencryption enc)
 		return 0;
 	}
 	return 1;
+#endif
 }
 
 int ftplib::NegotiateEncryption()
 {
+#ifdef NOSSL
+	return 0;
+#else
 	int ret;
 
 	if (!FtpSendCmd("AUTH TLS",'2',mp_ftphandle)) return 0;
@@ -1569,14 +1585,17 @@ int ftplib::NegotiateEncryption()
 	if (ret < 1) return 0;
 
 	return 1;
+#endif
 }
 
 void ftplib::SetCallbackCertFunction(FtpCallbackCert pointer)
 {
-	mp_ftphandle->certcb = pointer;
-}
-
+#ifdef NOSSL
+	(void)pointer;
+#else
+	mp_ftphandle->certcb = pointer;	
 #endif
+}
 
 void ftplib::SetCallbackIdleFunction(FtpCallbackIdle pointer)
 {
diff --git a/ftplib.h b/ftplib.h
index 45a7e84..a77d792 100755
--- a/ftplib.h
+++ b/ftplib.h
@@ -53,16 +53,26 @@
 #define fopen64 fopen
 #endif
 
-#ifndef NOSSL
-#include <openssl/ssl.h>
-#endif
+//SSL
+typedef struct ssl_st SSL;
+typedef struct ssl_ctx_st SSL_CTX;
+typedef struct bio_st BIO;
+typedef struct x509_st X509;
+
+#include <sys/types.h>
 
 #ifndef _FTPLIB_SSL_CLIENT_METHOD_
 #define _FTPLIB_SSL_CLIENT_METHOD_ TLSv1_2_client_method
-#endif//_FTPLIB_SSL_CLIENT_METHOD_
+#endif
 
 using namespace std;
 
+//SSL
+typedef struct ssl_st SSL;
+typedef struct ssl_ctx_st SSL_CTX;
+typedef struct bio_st BIO;
+typedef struct x509_st X509;
+
 /**
   *@author mkulke
   */
@@ -70,10 +80,9 @@ using namespace std;
 typedef int (*FtpCallbackXfer)(off64_t xfered, void *arg);
 typedef int (*FtpCallbackIdle)(void *arg);
 typedef void (*FtpCallbackLog)(char *str, void* arg, bool out);
-
-#ifndef NOSSL
+//SSL
 typedef bool (*FtpCallbackCert)(void *arg, X509 *cert);
-#endif
+
 
 struct ftphandle {
 	char *cput,*cget;
@@ -92,14 +101,14 @@ struct ftphandle {
 	off64_t cbbytes;
 	off64_t xfered1;
 	char response[256];
-#ifndef NOSSL
+  //SSL
 	SSL* ssl;
 	SSL_CTX* ctx;
 	BIO* sbio;
 	int tlsctrl;
 	int tlsdata;
 	FtpCallbackCert certcb;
-#endif
+
 	off64_t offset;
 	bool correctpasv;
 };
@@ -136,8 +145,8 @@ class ftplib {
 	enum fxpmethod
 	{
 		defaultfxp = 0,
-        alternativefxp
-	};
+    alternativefxp
+  };
 
   enum dataencryption
   {
@@ -166,11 +175,6 @@ class ftplib {
   int Put(const char *inputfile, const char *path, transfermode mode, off64_t offset = 0);
   int Rename(const char *src, const char *dst);
   int Delete(const char *path);
-#ifndef NOSSL
-  int SetDataEncryption(dataencryption enc);
-  int NegotiateEncryption();
-  void SetCallbackCertFunction(FtpCallbackCert pointer);
-#endif
   int Quit();
   void SetCallbackIdleFunction(FtpCallbackIdle pointer);
   void SetCallbackLogFunction(FtpCallbackLog pointer);
@@ -185,6 +189,10 @@ class ftplib {
   int RawClose(ftphandle* handle);
   int RawWrite(void* buf, int len, ftphandle* handle);
   int RawRead(void* buf, int max, ftphandle* handle);
+  // SSL
+  int SetDataEncryption(dataencryption enc);
+  int NegotiateEncryption();
+  void SetCallbackCertFunction(FtpCallbackCert pointer);
 
 private:
   ftphandle* mp_ftphandle;
diff --git a/sample/Readme.md b/sample/Readme.md
index 55fd85c..0c73e49 100644
--- a/sample/Readme.md
+++ b/sample/Readme.md
@@ -1,13 +1,18 @@
-Sample Project
-===  
+# Sample Project
 
-    g++ -I.. -c sample.cpp
-    g++ -L.. -o sample sample.o -lftp++
+```
+g++ -I.. -c sample.cpp
+g++ -L.. -o sample sample.o -lftp++
+```
 
-OSX:
- 
-    DYLD_LIBRARY_PATH=.. ./sample
+## MacOs
 
-LINUX: 
+```
+DYLD_LIBRARY_PATH=.. ./sample
+```
 
-    LD_LIBRARY_PATH=.. ./sample
+## Linux
+
+```
+LD_LIBRARY_PATH=.. ./sample
+```
diff --git a/sample/sample.cpp b/sample/sample.cpp
index 7025191..f96e6d6 100644
--- a/sample/sample.cpp
+++ b/sample/sample.cpp
@@ -2,10 +2,10 @@
 
 int main(void)
 {
-	ftplib *ftp = new ftplib::ftplib();
+	ftplib *ftp = new ftplib();
 	ftp->Connect("ftp.gwdg.de:21");
 	ftp->Login("anonymous", "");
-	ftp->Dir(NULL, "/ftp/pub");
+	ftp->Dir(NULL, "/pub/linux/apache");
 	ftp->Quit();
 	return 0;
 }