X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fmeta.c;h=1b3424606771b813aa3a15c096a8ad751eaafbcc;hp=21400f298ab15e1ae83db3115f852e1f910f509d;hb=2a3e343c7228d5f07176e4b404d895c7adc5bdf9;hpb=92b8abc921dd15b710f67335562210eb713fbb39

diff --git a/src/meta.c b/src/meta.c
index 21400f29..1b342460 100644
--- a/src/meta.c
+++ b/src/meta.c
@@ -94,15 +94,13 @@ bool flush_meta(connection_t *c) {
 						   c->name, c->hostname);
 			} else if(errno == EINTR) {
 				continue;
-#ifdef EWOULDBLOCK
-			} else if(errno == EWOULDBLOCK) {
+			} else if(sockwouldblock(sockerrno)) {
 				ifdebug(CONNECTIONS) logger(LOG_DEBUG, "Flushing %d bytes to %s (%s) would block",
 						c->outbuflen, c->name, c->hostname);
 				return true;
-#endif
 			} else {
 				logger(LOG_ERR, "Flushing meta data to %s (%s) failed: %s", c->name,
-					   c->hostname, strerror(errno));
+					   c->hostname, sockstrerror(sockerrno));
 			}
 
 			return false;
@@ -149,11 +147,11 @@ bool receive_meta(connection_t *c) {
 		if(!lenin || !errno) {
 			ifdebug(CONNECTIONS) logger(LOG_NOTICE, "Connection closed by %s (%s)",
 					   c->name, c->hostname);
-		} else if(errno == EINTR)
+		} else if(sockwouldblock(sockerrno))
 			return true;
 		else
 			logger(LOG_ERR, "Metadata socket read error for %s (%s): %s",
-				   c->name, c->hostname, strerror(errno));
+				   c->name, c->hostname, sockstrerror(sockerrno));
 
 		return false;
 	}
@@ -179,7 +177,15 @@ bool receive_meta(connection_t *c) {
 
 		if(c->tcplen) {
 			if(c->tcplen <= c->buflen) {
-				receive_tcppacket(c, c->buffer, c->tcplen);
+				if(proxytype == PROXY_SOCKS4 && c->allow_request == ID) {
+					if(c->buffer[0] == 0 && c->buffer[1] == 0x5a) {
+						logger(LOG_DEBUG, "Proxy request granted");
+					} else {
+						logger(LOG_ERR, "Proxy request rejected");
+						return false;
+					}
+				} else 
+					receive_tcppacket(c, c->buffer, c->tcplen);
 
 				c->buflen -= c->tcplen;
 				lenin -= c->tcplen - oldlen;