stun

commit c3a973ccab814e503dee96f28c03270ce4c319b8
parent b9e48021ed4e9a319e24c0c30008faf9c6dd487b
Author: sin <sin@2f30.org>
Date:   Tue, 12 Apr 2016 17:02:47 +0100

factor out tunnel handling

Diffstat:
M
Makefile
 | 
5
+++--
M
stun.c
 | 
35
-----------------------------------
M
stun.h
 | 
2
+-
A
tunnel.c
 | 
39
+++++++++++++++++++++++++++++++++++++++

4 files changed, 43 insertions(+), 38 deletions(-)
diff --git a/Makefile b/Makefile
@@ -2,8 +2,9 @@ include config.mk
 
 DISTFILES = Makefile README WHATSNEW UNLICENSE arg.h auth.c \
 	client.c config.mk crypto.c dev_bsd.c dev_linux.c log.c \
-	netpkt.c server.c stun.8 stun.c stun.h util.c
-OBJ = $(EXTRAOBJ) auth.o client.o crypto.o log.o netpkt.o server.o stun.o util.o
+	netpkt.c server.c stun.8 stun.c stun.h tunnel.c util.c
+OBJ = $(EXTRAOBJ) auth.o client.o crypto.o log.o netpkt.o server.o \
+	stun.o tunnel.o util.o
 BIN = stun
 
 all: $(BIN)
diff --git a/stun.c b/stun.c
@@ -43,7 +43,6 @@
 
 #include <sys/resource.h>
 
-#include <poll.h>
 #include <signal.h>
 #include <stdio.h>
 #include <stdint.h>
@@ -63,40 +62,6 @@ int devtype = TUNDEV;
 int debug;
 int sflag;
 
-int
-tunnel(int netfd, int devfd)
-{
-	unsigned char buf[MAXPAYLOADLEN];
-	size_t outlen;
-	struct pollfd pfd[2];
-	int n;
-
-	pfd[0].fd = netfd;
-	pfd[0].events = POLLIN;
-	pfd[1].fd = devfd;
-	pfd[1].events = POLLIN;
-	for (;;) {
-		if (poll(pfd, 2, -1) < 0)
-			logerr("poll failed");
-
-		if (pfd[0].revents & (POLLIN | POLLHUP)) {
-			n = netread(netfd, buf, sizeof(buf), &outlen);
-			if (n == PKTFAILED)
-				return -1;
-			else if (n == PKTCOMPLETE)
-				devwrite(devfd, buf, outlen);
-		}
-
-		if (pfd[1].revents & (POLLIN | POLLHUP)) {
-			n = devread(devfd, buf, sizeof(buf));
-			if (n > 0)
-				if (netwrite(netfd, buf, n, &outlen) == PKTFAILED)
-					return -1;
-		}
-	}
-	return 0;
-}
-
 void
 usage(void)
 {
diff --git a/stun.h b/stun.h
@@ -60,7 +60,7 @@ void netinit(void);
 int serverinit(char *, char *);
 int serveraccept(int);
 
-/* stun.c */
+/* tunnel.c */
 int tunnel(int, int);
 
 /* util.c */
diff --git a/tunnel.c b/tunnel.c
@@ -0,0 +1,39 @@
+#include <poll.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "stun.h"
+
+int
+tunnel(int netfd, int devfd)
+{
+	unsigned char buf[MAXPAYLOADLEN];
+	size_t outlen;
+	struct pollfd pfd[2];
+	int n;
+
+	pfd[0].fd = netfd;
+	pfd[0].events = POLLIN;
+	pfd[1].fd = devfd;
+	pfd[1].events = POLLIN;
+	for (;;) {
+		if (poll(pfd, 2, -1) < 0)
+			logerr("poll failed");
+
+		if (pfd[0].revents & (POLLIN | POLLHUP)) {
+			n = netread(netfd, buf, sizeof(buf), &outlen);
+			if (n == PKTFAILED)
+				return -1;
+			else if (n == PKTCOMPLETE)
+				devwrite(devfd, buf, outlen);
+		}
+
+		if (pfd[1].revents & (POLLIN | POLLHUP)) {
+			n = devread(devfd, buf, sizeof(buf));
+			if (n > 0)
+				if (netwrite(netfd, buf, n, &outlen) == PKTFAILED)
+					return -1;
+		}
+	}
+	return 0;
+}