diff --git a/src/auth.c b/src/auth.c
index 05c9e2e..83a7d82 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -57,7 +57,7 @@ int clientnegotiate(struct chain * redir, struct clientparam * param, struct soc
 				":%hu HTTP/1.0\r\nProxy-Connection: keep-alive\r\n", ntohs(*SAPORT(addr)));
 			if(user){
 				len += sprintf((char *)buf + len, "Proxy-authorization: basic ");
-				sprintf((char *)username, "%.128s:%.64s", user, pass?pass:(unsigned char *)"");
+				sprintf((char *)username, "%.128s:%.128s", user, pass?pass:(unsigned char *)"");
 				en64(username, buf+len, (int)strlen((char *)username));
 				len = (int)strlen((char *)buf);
 				len += sprintf((char *)buf + len, "\r\n");
diff --git a/src/ftp.c b/src/ftp.c
index b776115..3007ade 100644
--- a/src/ftp.c
+++ b/src/ftp.c
@@ -9,17 +9,17 @@
 
 
 int ftplogin(struct clientparam *param, char *nbuf, int *innbuf) {
-	char tbuf[1024];
+	char tbuf[256];
 	int i;
 	char *buf;
 	int len;
 	int res;
 
 	buf = nbuf?nbuf:tbuf;
-	len = nbuf?*innbuf:1024;
+	len = nbuf?*innbuf:sizeof(tbuf);
 
 	if(innbuf)*innbuf = 0;
-	if(len < 48) return 707;
+	if(len < 140) return 707;
 	while((i = sockgetlinebuf(param, SERVER, (unsigned char *)buf, len - 1, '\n', conf.timeouts[STRING_L])) > 0 && (i < 3 || !isnumber(*buf) || buf[3] == '-')){
 	}
 	if(i < 3) return 706;
@@ -28,7 +28,7 @@ int ftplogin(struct clientparam *param, char *nbuf, int *innbuf) {
 		*innbuf = i;
 		return 702;
 	}
-	sprintf(buf, "USER %.32s\r\n", param->extusername?param->extusername:(unsigned char *)"anonymous");
+	sprintf(buf, "USER %.128s\r\n", param->extusername?param->extusername:(unsigned char *)"anonymous");
 	if((int)socksend(param->remsock, (unsigned char *)buf, (int)strlen(buf), conf.timeouts[STRING_S]) != (int)strlen(buf)){
 		return 703;
 	}
@@ -40,7 +40,7 @@ int ftplogin(struct clientparam *param, char *nbuf, int *innbuf) {
 	buf[i] = 0;
 	res = atoi(buf)/100;
 	if(res == 3){
-		sprintf(buf, "PASS %.32s\r\n", 
+		sprintf(buf, "PASS %.128s\r\n", 
 			param->extusername?
 				(param->extpassword?
 					param->extpassword:(unsigned char *)"")
diff --git a/src/ftppr.c b/src/ftppr.c
index 820e9cc..0cc0762 100644
--- a/src/ftppr.c
+++ b/src/ftppr.c
@@ -70,7 +70,7 @@ void * ftpprchild(struct clientparam* param) {
 		param->res = res;
 		if(inbuf && inbuf != BUFSIZE && socksend(param->ctrlsock, buf, inbuf, conf.timeouts[STRING_S])!=inbuf) {RETURN (807);}
 		if(!res) status = 3;
-		sprintf((char *)buf, "%.64s@%.128s%c%hu", param->extusername, param->hostname, (ntohs(*SAPORT(&param->sinsr))==21)?0:':', ntohs(*SAPORT(&param->sinsr)));
+		sprintf((char *)buf, "%.128s@%.128s%c%hu", param->extusername, param->hostname, (ntohs(*SAPORT(&param->sinsr))==21)?0:':', ntohs(*SAPORT(&param->sinsr)));
 		req = mystrdup((char *)buf);
 #ifndef WITHMAIN
 		{
diff --git a/src/pop3p.c b/src/pop3p.c
index 46b4480..b5f3088 100644
--- a/src/pop3p.c
+++ b/src/pop3p.c
@@ -48,7 +48,7 @@ void * pop3pchild(struct clientparam* param) {
 CLEANRET:
 
  if(param->hostname&&param->extusername) {
-	sprintf((char *)buf, "%.64s@%.128s%c%hu", param->extusername, param->hostname, (*SAPORT(&param->sinsr)==110)?0:':', ntohs(*SAPORT(&param->sinsr)));
+	sprintf((char *)buf, "%.128s@%.128s%c%hu", param->extusername, param->hostname, (*SAPORT(&param->sinsr)==110)?0:':', ntohs(*SAPORT(&param->sinsr)));
 	 (*param->srv->logfunc)(param, buf);
  }
  else (*param->srv->logfunc)(param, NULL);
diff --git a/src/proxy.c b/src/proxy.c
index 46bba1f..07eed13 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -131,8 +131,8 @@ char * proxy_stringtable[] = {
 	NULL
 };
 
-#define BUFSIZE 8192
 #define LINESIZE 4096
+#define BUFSIZE (LINESIZE*2)
 #define FTPBUFSIZE 1536
 
 static void logurl(struct clientparam * param, char * buf, char * req, int ftp){
@@ -843,7 +843,7 @@ for(;;){
  if(keepalive <= 1) sprintf((char*)buf+strlen((char *)buf), "%s: %s\r\n", (param->redirtype == R_HTTP)?"Proxy-Connection":"Connection", keepalive? "keep-alive":"close");
  if(param->extusername){
 	sprintf((char*)buf + strlen((char *)buf), "%s: basic ", (redirect)?"Proxy-Authorization":"Authorization");
-	sprintf((char*)username, "%.128s:%.64s", param->extusername, param->extpassword?param->extpassword:(unsigned char*)"");
+	sprintf((char*)username, "%.128s:%.128s", param->extusername, param->extpassword?param->extpassword:(unsigned char*)"");
 	en64(username, buf+strlen((char *)buf), (int)strlen((char *)username));
 	sprintf((char*)buf + strlen((char *)buf), "\r\n");
  }
diff --git a/src/smtpp.c b/src/smtpp.c
index 048f883..e40e4ea 100644
--- a/src/smtpp.c
+++ b/src/smtpp.c
@@ -291,7 +291,7 @@ void * smtppchild(struct clientparam* param) {
 CLEANRET:
 
  if(param->hostname&&param->extusername) {
-	sprintf((char *)buf, "%.64s@%.128s%c%hu", param->extusername, param->hostname, *SAPORT(&param->sinsr)==25?0:':',ntohs(*SAPORT(&param->sinsr)));
+	sprintf((char *)buf, "%.128s@%.128s%c%hu", param->extusername, param->hostname, *SAPORT(&param->sinsr)==25?0:':',ntohs(*SAPORT(&param->sinsr)));
 	 (*param->srv->logfunc)(param, buf);
  }
  else (*param->srv->logfunc)(param, NULL);