From c691251feaffa310a51e0c2255eefc6b42f0e728 Mon Sep 17 00:00:00 2001
From: Jakub Sławiński
Date: Fri, 9 Jan 2004 18:48:31 +0100
Subject: v0.5.3

	- Added: client password identification (weak)
	- Added: sigint intercepting and server closing
	- Modified: communication between server and client
	- Added: 'nossl' and 'nozlib' modes
	- Added: zlib support
	- Lightly Modified: verbose mode
	- Modified/Added: help screen and long options support
---
 network.c | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)

(limited to 'network.c')

diff --git a/network.c b/network.c
index 59e14a9..2c7862b 100644
--- a/network.c
+++ b/network.c
@@ -19,9 +19,12 @@
  */
 
 #include "network.h"
+#include "activefor.h"
+#include "stats.h"
 #include <string.h>
 #include <errno.h>
 #include <signal.h>
+#include <zlib.h>
 
 static void
 sig_alrm(int signo)
@@ -255,3 +258,93 @@ readn(int fd, unsigned char* buf, int amount)
 	return amount;
 
 }
+
+int
+send_message(char type, clifd fd, unsigned char* buf, int amount)
+{
+	unsigned long clen;
+	int length;
+	static unsigned char bufor[9000];
+	clen = 8995;
+	length = amount - 5;
+	if (TYPE_IS_ZLIB(type)) {
+		memcpy(bufor, buf, 5);
+		if (amount > 5) {
+			compress(&bufor[5], &clen, &buf[5], length);
+			if (clen < length) {
+				length = clen;
+				TYPE_SET_COMP(length);
+				bufor[3] = length >> 8; /* high bits of message length */
+				bufor[4] = length;	/* low bits of message length */
+				addtocg(amount-5 - clen);
+			}
+		}
+		if (TYPE_IS_SSL(type)) {
+			if (TYPE_IS_COMP(length)) {
+				return SSL_writen(fd.ssl, bufor, clen+5);
+			}
+			else {
+				return SSL_writen(fd.ssl, buf, amount);
+			}
+		}
+		else {
+			if (TYPE_IS_COMP(length)) {
+				return writen(fd.commfd, bufor, clen+5);
+			}
+			else {
+				return writen(fd.commfd, buf, amount);
+			}
+		}
+	}
+	else {
+		if (TYPE_IS_SSL(type)) {
+			return SSL_writen(fd.ssl, buf, amount);
+		}
+		else {
+			return writen(fd.commfd, buf, amount);
+		}
+	}
+}
+
+int
+get_message(char type, clifd fd, unsigned char* buf, int amount)
+{
+	int length;
+	unsigned long elen;
+	static unsigned char bufor[9000];
+	if (amount == -5) {
+		if (TYPE_IS_SSL(type)) {
+			return SSL_read(fd.ssl, buf, 5);
+		}
+		else {
+			return read(fd.commfd, buf, 5);
+		}
+	}
+	if (TYPE_IS_ZLIB(type)) {
+		if (TYPE_IS_SSL(type)) {
+			length = SSL_readn(fd.ssl, bufor, amount&0xBFFF);
+		}
+		else {
+			length = readn(fd.commfd, bufor, amount&0xBFFF);
+		}
+		if (length <= 0) return length;
+		elen = 8096;
+		if (TYPE_IS_COMP(amount)) {
+			uncompress(buf, &elen, bufor, length);
+		}
+		else {
+			memcpy(buf, bufor, length);
+			elen = length;
+		}
+		return elen;
+	}
+	else
+	{
+		if (TYPE_IS_SSL(type)) {
+			return SSL_readn(fd.ssl, buf, amount);
+		}
+		else {
+			return readn(fd.commfd, buf, amount);
+		}
+	}
+}
-- 
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