stun

commit acbdc8a1c66824541ddd39a07b8b8ca1c97ee828
parent 41a5831f0f97a4498607533845954b7a0f9565ce
Author: sin <sin@2f30.org>
Date:   Thu, 14 Apr 2016 11:42:06 +0100

set address family directly in devwrite()

Diffstat:
M
dev_bsd.c
 | 
9
++++++---
M
dev_linux.c
 | 
2
+-
M
stun.h
 | 
2
+-
M
tunnel.c
 | 
14
++++----------

4 files changed, 12 insertions(+), 15 deletions(-)
diff --git a/dev_bsd.c b/dev_bsd.c
@@ -47,16 +47,19 @@ devopen(char *ifname)
 }
 
 int
-devwrite(int fd, unsigned char *buf, int len, int af)
+devwrite(int fd, unsigned char *buf, int len)
 {
 	struct iovec iov[2];
-	uint32_t type = htonl(af);
-	int n;
+	uint32_t type;
+	int n, af;
 
 	switch (devtype) {
 	case TAPDEV:
 		return write(fd, buf, len);
 	case TUNDEV:
+		if ((af = ipversion(buf)) < 0)
+			return -1;
+		type = htonl(af);
 		iov[0].iov_base = &type;
 		iov[0].iov_len = sizeof(type);
 		iov[1].iov_base = buf;
diff --git a/dev_linux.c b/dev_linux.c
@@ -42,7 +42,7 @@ devopen(char *ifname)
 }
 
 int
-devwrite(int fd, unsigned char *buf, int len, int af)
+devwrite(int fd, unsigned char *buf, int len)
 {
 	return write(fd, buf, len);
 }
diff --git a/stun.h b/stun.h
@@ -51,7 +51,7 @@ int cryptoopen(unsigned char *, size_t *, size_t, const unsigned char *,
 
 /* dev_*.c */
 int devopen(char *);
-int devwrite(int, unsigned char *, int, int);
+int devwrite(int, unsigned char *, int);
 int devread(int, unsigned char *, int);
 
 /* log.c */
diff --git a/tunnel.c b/tunnel.c
@@ -8,7 +8,7 @@ tunnel(int netfd, int devfd)
 	unsigned char buf[MAXPAYLOADLEN];
 	size_t outlen;
 	struct pollfd pfd[2];
-	int n, af;
+	int n;
 
 	pfd[0].fd = netfd;
 	pfd[0].events = POLLIN;
@@ -22,16 +22,10 @@ tunnel(int netfd, int devfd)
 
 		if (pfd[0].revents & (POLLIN | POLLHUP)) {
 			n = netread(netfd, buf, sizeof(buf), &outlen);
-			if (n == PKTFAILED) {
+			if (n == PKTFAILED)
 				return -1;
-			} else if (n == PKTCOMPLETE) {
-				if (devtype == TUNDEV) {
-					if ((af = ipversion(buf)) > 0)
-						devwrite(devfd, buf, outlen, af);
-				} else {
-					devwrite(devfd, buf, outlen, -1);
-				}
-			}
+			else if (n == PKTCOMPLETE)
+				devwrite(devfd, buf, outlen);
 		}
 
 		if (pfd[1].revents & (POLLIN | POLLHUP)) {